Medical inflatable stomach tube

Abstract

The utility model discloses a medical inflatable stomach tube. Comprising a stomach tube section, a nasal cavity section in through connection with the stomach tube section, and an in-vitro section in through connection with the nasal cavity section, the nasal cavity section comprises a nasal cavity tube main body consisting of an inner-layer flexible film and an outer-layer flexible film which are nested with each other, a middle inflatable layer positioned between the inner-layer flexible film and the outer-layer flexible film, and a breather tube communicated and connected with the middle inflatable layer. The nasal cavity section is made of the flexible thin film material, and gas in the middle inflation layer can be released in a non-feeding state, so that shape transformation from a tubular body to a membranoid body is completed, and adaptive plasticity and fitting with human tissue are achieved. Therefore, the compression force of the pipeline on the human tissue is greatly reduced, the medical effect is guaranteed, and meanwhile the comfort of a patient is improved. In addition, the food pouring-out section is arranged to be of a porous structure, and therefore the probability of food blocking is effectively reduced.

Description

Technical Field

[0001] The embodiments of this utility model belong to the field of gastric tube technology, and more specifically, relate to a medical inflatable gastric tube. Background Technology

[0002] A gastric tube is used in special circumstances to deliver necessary fluids and food to patients who cannot swallow. Gastric tubes are generally made of polyurethane or silicone; depending on the material, polyurethane and silicone tubes should be replaced monthly. They come in different sizes and lengths, and are categorized as oropharyngeal tubes and nasogastric tubes. Oropharyngeal tubes are approximately 45 cm long and are inserted 35-40 cm through the mouth. Nasogastric tubes are approximately 105 cm long and are inserted about 55 cm through the nostril, passing through the pharynx, esophagus, and stomach. The placement of a nasogastric tube alters the patient's original respiratory physiological environment, leading to airway obstruction, severe coughing, and pressure irritation, which can easily cause complications such as esophageal reflux. Therefore, developing a gastric tube that exerts less pressure on the nasal cavity is of great significance for patient comfort and safety.

[0003] To address the aforementioned technical problems, Chinese utility model patent CN209172964U discloses a double-lumen gastric tube, comprising a double-lumen gastric tube head, a double-lumen gastric tube body, and a double-lumen gastric tube tail. The double-lumen gastric tube head is connected to the end of the double-lumen gastric tube body closest to the stomach cavity, and the double-lumen gastric tube tail is connected to the end of the double-lumen gastric tube body furthest from the stomach cavity. The double-lumen gastric tube body includes an inner tube and an outer tube. The outer tube includes an outer tube body and an outer tube wall. One side of the outer wall of the inner tube is connected to the inner wall of the outer tube wall. A metal spring wire is provided on the upper part of the outer tube body. The double-lumen gastric tube provided by this utility model enhances the bending resistance of the double-lumen gastric tube body in the patient's pharynx, avoids the double-lumen gastric tube blockage during feeding, and reduces the patient's pain from stomach bloating during feeding.

[0004] The above-mentioned patented technology has reduced the pressure on the nasal cavity to a certain extent, but there are still the following technical problems or areas for improvement: (1) Analyzing the sources of pressure on the nasal cavity from the nasogastric tube, on the one hand, the tube has poor bending ability, which leads to the tube exerting greater pressure on a small area of ​​human tissue; on the other hand, the tube is relatively rigid, which makes it impossible for the tube to fit the human tissue better. Therefore, even if the above-mentioned patented technology improves the bending resistance, it still cannot solve the problem of good fit between the tube and the human tissue, and there is still a large pressure. (2) In response to the problem mentioned in (1), a membrane-type tube can be considered, which makes the tube adapt to the shape of the human tissue and ensures a large area of ​​contact, thereby greatly reducing the pressure. Utility Model Content

[0005] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention provides a medical inflatable gastric tube. By employing a flexible thin-film material for the nasal cavity segment, gas can be released from the intermediate inflatable layer when not ingesting, thus completing the morphological transformation from a tubular to a membranous form, achieving adaptive plasticity and conformation to human tissue. This significantly reduces the pressure exerted by the tube on human tissue, ensuring medical efficacy while improving patient comfort. Furthermore, this invention effectively reduces the probability of food blockage by designing a porous structure for the food dispensing section.

[0006] To achieve the above objectives, a medical inflatable gastric tube includes:

[0007] A gastric tube segment, a nasal cavity segment communicating with the gastric tube segment, and an external segment communicating with the nasal cavity segment;

[0008] The gastric tube segment includes a gastric tube body, a gastric tube end located at the end of the gastric tube body, and a flexible tube connection unit for connecting the gastric tube body and the gastric tube end; the gastric tube end includes an infusion section that is connected through the gastric tube body and serves as an output end, and a mass block fixed to the lower end of the infusion section for facilitating the end's descent from the esophagus; the sidewall of the infusion section is configured with a porous structure.

[0009] The nasal cavity segment includes a nasal tube body composed of an inner flexible film and an outer flexible film nested together, an intermediate air-filled layer between the inner and outer flexible films, and an air tube that is connected to the intermediate air-filled layer.

[0010] Preferably, the main body of the nasal tube is made of soft polysilicon material.

[0011] Preferably, the hose connection unit includes:

[0012] The system includes a pressure-clamping end cap located above the injection section, a connecting edge located at the top edge of the pressure-clamping end cap, a connecting rod fixedly connected to the lower surface of the connecting edge, a sliding block fixedly connected to the lower end of the connecting rod, a vertical groove formed on the side of the injection section and slidably connected to the sliding block, a horizontal groove connected horizontally to the lower end of the vertical groove, a reverse clamping groove located at the end of the horizontal groove in the vertically upward direction, and a pressure-clamping groove formed in the top wall of the injection section; the pressure-clamping end cap has an annular structure with a through-hole at the center.

[0013] Preferably, the diameter of the nasal cavity segment is smaller than that of the gastric tube segment.

[0014] Preferably, the external segment includes: an external tube body that is connected in communication with the nasal tube body, a back-pull connector and an injection connector that are branched and connected to the outer end of the external tube body.

[0015] Preferably, the number of injection tube connectors is at least two.

[0016] Preferably, the injection connector is provided with a one-way valve that can only be used for input.

[0017] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects:

[0018] (1) This utility model discloses a medical inflatable gastric tube. By using a flexible thin film material to make the nasal cavity segment, the gas in the middle inflation layer can be released when not eating, thereby completing the morphological transformation from a tubular body to a membrane body, achieving adaptive plasticity and fit with human tissue. This greatly reduces the pressure of the tube on human tissue, ensuring medical efficacy while improving patient comfort. In addition, this utility model effectively reduces the probability of food blockage by making the food dispensing segment porous.

[0019] (2) The present invention provides a medical inflatable gastric tube, which achieves a good locking connection between the flexible tube and the rigid end by adding a buckle structure. During use, the lower end of the gastric tube body is inserted from the center of the clamping end cap and covered with the clamping groove. Then the clamping end cap is pressed down to press the lower end of the gastric tube body into the clamping groove. Then the clamping end cap is rotated along the transverse sliding groove and the reverse clamping groove to lock the lower end of the gastric tube body with the dispensing section, thereby effectively preventing the technical problem of the end falling off. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a medical inflatable gastric tube according to an embodiment of the present invention;

[0021] Figure 2 This is a diagram illustrating the usage state of a medical inflatable gastric tube according to an embodiment of this utility model;

[0022] Figure 3 A is a partial enlarged view A of a medical inflatable gastric tube according to an embodiment of this utility model;

[0023] Figure 4 This is a schematic diagram of the overall structure of the flexible tube connection unit for a medical inflatable gastric tube according to an embodiment of the present invention;

[0024] Figure 5 This is a diagram showing the first usage state of a flexible tube connection unit for a medical inflatable gastric tube according to an embodiment of the present invention.

[0025] Figure 6 This is a second usage state diagram of a flexible tube connection unit for a medical inflatable gastric tube according to an embodiment of the present invention;

[0026] Figure 7This is a third usage state diagram of a flexible tube connection unit for a medical inflatable gastric tube according to an embodiment of the present invention;

[0027] Figure 8 This is a partial enlarged view of the end of a medical inflatable gastric tube according to an embodiment of the present invention.

[0028] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-gastric tube segment, 100-gastric tube body, 110-gastric tube end, 111-mass block, 112-injection segment, 120-tuberculous connection unit, 121-pressing end cap, 122-connecting edge, 123-connecting rod, 124-sliding block, 125-vertical groove, 126-transverse groove, 127-reverse locking groove, 128-pressing groove, 2-nasal cavity segment, 200-nasal cavity tube body, 201-outer flexible membrane, 202-inner flexible membrane, 203-intermediate air-filled layer, 204-ventilation tube, 3-external segment, 300-external tube body, 301-reverse aspiration tube connector, 302-injection tube connector, 303-one-way valve. Detailed Implementation

[0029] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0030] 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0031] In this application, unless otherwise expressly 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.

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0033] like Figures 1-8 As shown in this embodiment of the invention, the medical inflatable gastric tube includes:

[0034] Gastric tube segment 1, nasal cavity segment 2 connected to the gastric tube segment 1, and external segment 3 connected to the nasal cavity segment 2;

[0035] The gastric tube segment 1 includes a gastric tube body 100, a gastric tube end 110 disposed at the end of the gastric tube body 100, and a flexible tube connection unit 120 for connecting the gastric tube body 100 and the gastric tube end 110; the gastric tube end 110 includes an infusion section 112 that is connected through the gastric tube body 100 and serves as an output end, and a mass block 111 fixed to the lower end of the infusion section 112 for facilitating the end's descent from the esophagus; the sidewall of the infusion section 112 is configured with a porous structure.

[0036] The nasal cavity segment 2 includes a nasal tube body 200 composed of an inner flexible film 202 and an outer flexible film 201 nested together, an intermediate air-filled layer 203 located between the inner flexible film 202 and the outer flexible film 201, and an air tube 204 that is connected to the intermediate air-filled layer 203.

[0037] In this embodiment of the invention, the nasal cavity segment is made of a flexible thin-film material. When not in a feeding state, the gas in the intermediate air-filled layer 203 can be released, thus completing the morphological transformation from a tubular to a membranous structure, achieving adaptive plasticity and fit with human tissue. This greatly reduces the pressure of the tube on human tissue, ensuring medical efficacy while improving patient comfort. Furthermore, by designing the food dispensing segment 112 as a porous structure, this invention effectively reduces the probability of food blockage.

[0038] like Figure 1 As shown in this embodiment of the invention, the nasal tube body 200 is made of soft polysilicon material.

[0039] like Figures 4-8 As shown in this embodiment of the utility model, the hose connection unit 120 includes:

[0040] The system includes a pressure-clamping end cap 121 located above the injection section 112, a connecting edge 122 located at the top edge of the pressure-clamping end cap 121, a connecting rod 123 fixedly connected to the lower surface of the connecting edge 122, a sliding block 124 fixedly connected to the lower end of the connecting rod 123, a vertical groove 125 opened on the side of the injection section 112 and slidably connected to the sliding block 124, a horizontal groove 126 connected horizontally to the lower end of the vertical groove 125, a reverse groove 127 located at the end of the horizontal groove 126 in the vertically upward direction, and a pressure-clamping groove 128 opened in the top wall of the injection section 112; the pressure-clamping end cap 121 is a ring-shaped structure with a through-hole at the center.

[0041] In this embodiment of the utility model, by adding a snap-fit ​​structure, a good snap-fit ​​connection between the flexible tube and the rigid end is achieved. During use, the lower end of the gastric tube body 100 is inserted through the center of the snap-fit ​​end cap 121 and covers the snap-fit ​​groove 128. Then, the snap-fit ​​end cap 121 is pressed down to press the lower end of the gastric tube body 100 into the snap-fit ​​groove 128. Then, the snap-fit ​​end cap 121 is rotated along the transverse sliding groove 126 and the reverse snap-fit ​​groove 127 to lock the lower end of the gastric tube body 100 with the dispensing section, thereby effectively preventing the technical problem of the end falling off.

[0042] like Figure 1 As shown in this embodiment of the invention, the diameter of the nasal cavity segment 2 is smaller than that of the gastric tube segment 1.

[0043] like Figure 1 As shown in this embodiment of the present invention, the external segment 3 includes: an external tube body 300 that is connected in a through manner to the nasal tube body 200, a back-pull tube connector 301 and an injection tube connector 302 that are branched and connected to the outer end of the external tube body 300.

[0044] like Figure 1 As shown in this embodiment of the invention, the number of injection pipe connectors 302 is at least two.

[0045] like Figure 1 As shown in this embodiment of the invention, the injection connector 302 is provided with a one-way valve 303 that can only be used for input.

[0046] like Figure 1 As shown in this embodiment of the invention, the gastric tube segment 1 is made of silicone.

[0047] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A medical inflatable gastric tube, characterized in that, include: Gastric tube segment (1), nasal cavity segment (2) connected to the gastric tube segment (1), and external segment (3) connected to the nasal cavity segment (2); The gastric tube segment (1) includes a gastric tube body (100), a gastric tube end (110) located at the end of the gastric tube body (100), and a flexible tube connection unit (120) for connecting the gastric tube body (100) and the gastric tube end (110); the gastric tube end (110) includes an infusion section (112) that is connected through the gastric tube body (100) and serves as an output end, and a mass block (111) fixed to the lower end of the infusion section (112) for facilitating the end's descent from the esophagus; the sidewall of the infusion section (112) is configured as a porous structure; The nasal cavity segment (2) includes a nasal tube body (200) composed of an inner flexible film (202) and an outer flexible film (201) nested together, an intermediate air-filled layer (203) between the inner flexible film (202) and the outer flexible film (201), and an air tube (204) that is connected to the intermediate air-filled layer (203).

2. A medical inflatable gastric tube according to claim 1, characterized in that, The main body (200) of the nasal tube is made of soft polysilicon material.

3. A medical inflatable gastric tube according to claim 1, characterized in that, The hose connection unit (120) includes: The injection section (112) includes a pressure-clamping end cap (121) located above the injection section (112), a connecting edge (122) located at the top edge of the pressure-clamping end cap (121), a connecting rod (123) fixedly connected to the lower surface of the connecting edge (122), a sliding block (124) fixedly connected to the lower end of the connecting rod (123), a vertical groove (125) opened on the side of the injection section (112) and slidably connected to the sliding block (124), a horizontal groove (126) connected horizontally to the lower end of the vertical groove (125), a reverse groove (127) located at the end of the horizontal groove (126) in the vertical upward direction, and a pressure-clamping groove (128) opened in the top pipe wall of the injection section (112). The pressure-clamping end cap (121) is a ring structure with a through-hole in the center.

4. A medical inflatable gastric tube according to any one of claims 1 to 3, characterized in that, The diameter of the nasal cavity segment (2) is smaller than that of the gastric tube segment (1).

5. A medical inflatable gastric tube according to claim 1, characterized in that, The external segment (3) includes: an external tube body (300) that is connected in communication with the nasal tube body (200), a back-pull tube connector (301) and an injection tube connector (302) that are branched and connected to the outer end of the external tube body (300).

6. A medical inflatable gastric tube according to claim 5, characterized in that, The number of injection tube connectors (302) is at least two.

7. A medical inflatable gastric tube according to claim 6, characterized in that, The injection connector (302) is equipped with a one-way valve (303) that can only be used for injection.

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