A pleated nasogastric feeding tube

Abstract

The present invention provides a pleated nasogastric tube, comprising an inflation tube and a base tube. The base tube is a solid tube with a major arc cross-section. The interior of the inflation tube is hollow. The length of the inflation tube is consistent with the length of the base tube. The width of the upper inner wall of the inflation tube is greater than the width of the lower inner wall. The upper tube wall of the inflation tube is folded by multiple tiny pleated bands, and the pleated band is formed by two tiny pleated strips spliced ​​in an inverted V shape. The left pleated strip of the pleated band is adhered to the right pleated strip of the previous pleated band. The left and right sides of the inflation tube are fixedly connected to the left and right sides of the base tube. The areas of the left and right sides of the inflation tube are equal to the areas of the left and right ends of the base tube. An air inlet pipe is also connected through the upper surface wall of the inflation tube. The air inlet pipe is located on the side of the inflation tube close to the interface of the pleated nasogastric tube. When inflated, the inflation tube expands and drives the base tube to expand outward, thereby filling the patient's nasal cavity. This ensures that the nasal cavity of each patient is adapted and the inflation tube ensures the comfort of the patient's nasal cavity.

Description

Technical Field

[0001] The present invention relates to the field of nasogastric feeding tubes, in particular to a pleated nasogastric feeding tube. Background Art

[0002] Currently, nasogastric feeding tubes are widely used for patients who have difficulty swallowing independently. Usually, the tube is inserted into the patient's nasal cavity and then into the patient's esophagus. However, ordinary nasogastric feeding tubes have the following problems:

[0003] 1. The diameter of the nasogastric tube is fixed and cannot fully adapt to the size of each patient's nasal cavity, and it is easy to slip and fall off;

[0004] 2. A harder nasogastric tube will compress the patient's nasal cavity, increasing the patient's discomfort. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a pleated nasogastric feeding tube.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a pleated nasogastric tube, comprising an inflation tube and a base tube, the base tube being a solid tube with a major arc cross-section, the inflation tube being hollow inside, the length of the inflation tube being consistent with the length of the base tube, the width of the upper inner wall of the inflation tube being greater than the width of the lower inner wall, the upper tube wall of the inflation tube being formed by a plurality of tiny pleated bands pasted and folded together in sequence, the pleated band being formed by two tiny pleated strips spliced ​​in an inverted V shape, the left pleated strip of the pleated band being adhered to the right pleated strip of the previous pleated band, the left and right sides of the inflation tube being fixedly connected to the left and right sides of the base tube, the left and right side areas of the inflation tube being equal to the left and right ends of the base tube and being consistent with each other, an air inlet pipe being also connected through the upper surface wall of the inflation tube, and the air inlet pipe being located on the side of the inflation tube close to the interface of the pleated nasogastric tube.

[0007] Preferably, the left side of the pleated strips is adhered to the right side of the previous pleated strip and the surfaces where they are pasted to each other are rectangular, and the width of the pasting between the side surfaces of the pleated strips decreases from both sides of the inflation tube to the middle.

[0008] Preferably, the left and right ends of the lower tube wall of the inflation tube are silicone sheets, the silicone sheets are arranged tilted upward, and the silicone sheets support the upper tube wall of the inflation tube when the inflation tube is not inflated.

[0009] Preferably, the width of the upper surface wall of the inflation tube is greater than the length of the minor arc corresponding to the major arc of the cross section of the base tube.

[0010] Preferably, the base tube is a deformable and elastic silicone tube.

[0011] Preferably, two openings are provided on the upper surface wall of the inflation tube, and both openings are covered with a pleated sheet, the lengths of the front and rear side edges of the pleated sheet are consistent with the lengths of the front and rear side edges of the opening, the front and rear side edges of the pleated sheet are sealedly connected to the front and rear side edges of the opening, and the left and right side edges of the pleated sheet are fixedly and sealedly connected to the left and right side edges of the opening to the two side edges of the fixing ring.

[0012] Preferably, the corrugated sheet is a rectangular sheet made of a soft material, and the corrugated sheet maintains an intact ring body with the fixing ring during the expansion process.

[0013] Preferably, the width of the corrugated sheet is greater than the width of the opening.

[0014] Preferably, the interior of the fixing ring is hollow, the fixing ring is connected to the inflation tube, the inner diameter of the fixing ring is adapted to the outer diameter of the base tube, and the inner ring of the fixing ring is sleeved on the outer wall of the base tube.

[0015] Preferably, an elastic sheet adhered in sequence is provided on the inner wall of the base tube, and the elastic sheet is stretched to a rectangular strip by the arc-shaped inner wall of the base tube. The length of the elastic sheet is consistent with the length of the base tube, and the left and right sides of the elastic sheet are fixed on the inner wall of the base tube, and a gap is left between the elastic sheet and the inner wall of the base tube.

[0016] Preferably, there are two fixing rings, and the interval between the two fixing rings is between 2 cm and 3 cm.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The inflatable tube expands after being inflated. When it expands to the size that is suitable for the patient's nasal cavity, the inflation can be stopped. It can adapt to the inside of nasal cavities of various sizes and is not prone to slipping off.

[0019] 2. Compared with the harder nasogastric tube, the soft inflatable tube puts less pressure on the patient's nasal cavity, which increases the patient's nasal comfort;

[0020] 3. Taking advantage of the inflation characteristics of the fixed rings, the two fixed rings will clamp the nose wings after expansion, further preventing the nasogastric tube from sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of a pleated nasogastric feeding tube of the present invention;

[0022] Figure 2 This is a schematic diagram of a pleated nasogastric feeding tube after inflation according to the present invention;

[0023] Figure 3The present invention is a flat display of an inflation tube of a pleated nasogastric tube.

[0024] Figure 4 The figure is a side view of the inflation tube of a pleated nasogastric feeding tube of the present invention. DETAILED DESCRIPTION

[0025] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the present invention is described in detail below with reference to the embodiments.

[0026] Please refer to Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4 The present invention provides a pleated nasogastric tube, comprising an inflation tube 1 and a base tube 2. The base tube 2 is a solid tube with a major arc cross-section. The inflation tube 1 is hollow inside. The length of the inflation tube 1 is consistent with the length of the base tube 2. The width of the upper inner wall of the inflation tube 1 is greater than the width of the lower inner wall. The upper tube wall of the inflation tube 1 is composed of a plurality of tiny pleated bands 11 that are pasted and folded together in sequence. The pleated band 11 is composed of two tiny pleated strips spliced ​​in an inverted V shape. The left pleated strip of the pleated band 11 is adhered to the right pleated strip of the previous pleated band 11. The left and right sides of the inflation tube 1 are fixedly connected to the left and right sides of the base tube 2. The areas of the left and right sides of the inflation tube 1 are equal to the areas of the left and right ends of the base tube 2 and coincide with each other. An air inlet pipe 3 is also connected through the upper surface wall of the inflation tube 1. The air inlet pipe 3 is located on the side of the inflation tube 1 close to the pleated nasogastric tube interface.

[0027] This invention inflates the air into the inflation tube 1 through the air inlet tube 3. The originally flattened inflation tube 1 begins to expand after inflation. The cross-sectional area of ​​the inflation tube 1 increases after expansion, driving the base tube 2 to fill the patient's nasal cavity outward. Moreover, since the inflation tube 1 is slowly inflated and expanded, the radius of the entire pleated nasogastric tube can be controlled by the amount of inflation, which is suitable for patients with various nasal cavity sizes.

[0028] Preferably, the left side of the pleated strips is adhered to the right side of the previous pleated strip and the surfaces where they are pasted to each other are rectangular, and the width of the pasting between the side surfaces of the pleated strips decreases from both sides of the inflation tube 1 to the middle.

[0029] The pleated strips 11 at the leftmost and rightmost ends of the inflatable tube 1 are adhered in such a way that the left side of the pleated strip is adhered to the right side of the previous pleated strip, and the pleated strip 11 in the middle part of the inflatable tube 1 is adhered in such a way that the bottom end of the left side of the pleated strip is adhered to the bottom end of the right side of the previous pleated strip.

[0030] The side surfaces of the pleated belts 11 on the left and right sides of the inflatable tube 1 are completely adhered to the side surfaces of the other pleated belts 11, and in the middle part of the inflatable tube 1, only the side bottom ends of the pleated strips are adhered to each other. This adhesion method ensures that when inflated, only the parts between the pleated strips of the pleated belts 11 on the left and right sides of the inflatable tube 1 are inflated, resulting in the upper inner wall of the entire inflatable tube 1 presenting a dome-like shape when inflated.

[0031] Preferably, the left and right ends of the lower tube wall of the inflation tube 1 are silicone sheets, which are arranged at an angle upward, and support the upper tube wall of the inflation tube 1 when the inflation tube 1 is not inflated. The silicone sheet is used to support the upper surface wall of the inflation tube 1 to prevent the inflation tube 1 from falling into the base tube 2, causing the inside of the base tube 2 to be blocked when it expands.

[0032] Preferably, the length of the gas tube 1 is greater than the length of the minor arc corresponding to the major arc of the cross section of the base tube 2 .

[0033] The length of the inflation tube 1 is greater than the inferior arc length corresponding to the cross section of the base tube 2, ensuring that the entire pleated tube expands outwards when the inflation tube 1 expands.

[0034] Preferably, the base tube 2 is a deformable elastic silicone tube. The elastic base tube 2 can be deformed well after the inflation tube 1 is inflated, and the elasticity of the silicone provides less pressure to the patient's nasal cavity.

[0035] Preferably, two openings 4 are provided on the upper surface wall of the inflation tube 1, and both openings 4 are covered with a pleated sheet 5. The lengths of the front and rear sides of the pleated sheet 5 are consistent with the lengths of the front and rear sides of the opening 4. The front and rear sides of the pleated sheet 5 are sealedly connected to the front and rear sides of the opening 4, and the left and right sides of the pleated sheet 5 are fixedly and sealedly connected to the left and right sides of the opening 4 on both sides of the fixing ring 6.

[0036] The pleats of the pleated sheet 5 are arranged on the opening 4. When the inflation tube 1 is inflated, the pleated sheet 5 is squeezed outward by the gas in the inflation tube 1 and expands in an arc shape protruding from the surface of the inflation tube 1. The two ends of the fixing ring 6 pass through the gap between the expanded pleated sheet 5 and the inflation tube 1. At this time, the gas in the inflation tube 1 will also flow into the fixing ring 6, causing the fixing ring 6 to expand as well. It can not only fix the base tube 2, but also be stuck on the patient's nose wing to keep it fixed and prevent it from falling off.

[0037] Preferably, the pleated sheet 5 is a rectangular sheet of soft material. The pleated sheet 5 maintains a complete ring body with the fixing ring 6 during the expansion process. After expansion, the pleated sheet 5 and the fixing ring 6 can form a complete ring body to avoid causing discomfort inside the patient's nasal cavity.

[0038] Preferably, the width of the pleated sheet 5 is greater than the width of the opening 4 to ensure that the inflation tube 1 expands when the inflation tube 1 is inflated, causing the pleated sheet 5 to bulge upward.

[0039] Preferably, the interior of the fixing ring 6 is hollow, the fixing ring 6 is connected to the inflation tube 1, the inner diameter of the fixing ring 6 is adapted to the outer diameter of the base tube 2, the inner ring of the fixing ring 6 is sleeved on the outer wall of the base tube 2, and the fixing ring 6 sleeved on the outer wall of the base tube 2 is used to limit the maximum diameter of the base tube 2.

[0040] Preferably, an elastic sheet 7 is sequentially adhered to the inner wall of the base tube 2. The elastic sheet 7 is stretched to a rectangular strip by the arc-shaped inner wall of the base tube 2. The length of the elastic sheet 7 is consistent with the length of the base tube 2. The left and right sides of the elastic sheet 7 are fixed on the inner wall of the base tube 2, and a gap is left between the elastic sheet 7 and the inner wall of the base tube 2.

[0041] The elastic sheet 7 provided on the inner wall of the base tube 2 is used to pull and contract the base tube 2 so that the base tube 2 has a tendency to bend inward, ensuring that the inflation tube 1 is in a bent state under normal conditions due to being larger than the distance between the base tubes 2.

[0042] Preferably, there are two fixing rings 6 , and the interval between the two fixing rings 6 is between 2 cm and 3 cm.

[0043] The two fixing rings 6, one inside and one outside, are clamped on the patient's nose wings. Generally, the nose wings of patients are between 2cm and 3cm, and the distance between the two fixing rings 6 is also between 2~3cm, ensuring that the fixing rings 6 are suitable for the nasal cavity of most patients and can be clamped on the nose wings of most patients.

[0044] When the invention is actually used, the uninflated pleated nasogastric tube is inserted into the patient's nasal cavity. When the fixed ring 6 is located on the inner and outer sides of the patient's nostrils, the air inlet pipe 3 is opened and the inflation tube 1 is inflated. As the gas in the inflation tube 1 increases, the diameter of the entire pleated nasogastric tube becomes larger and larger, thereby filling the patient's entire nasal cavity. It can adapt to patients with various nasal cavity sizes. The soft inflation tube 1 ensures that the pleated nasogastric tube does not cause pressure on the patient's nasal cavity. The gas in the inflation tube 1 will also compress the pleated sheet 5 to expand it outward to form a bulge. In conjunction with the expanded fixed ring 6, a circle of expanded bulges appears on the outer wall of the entire pleated nasogastric tube, which is used to clamp the patient's nostrils one inside and one outside, further fixing the pleated nasogastric tube, and preventing the pleated nasogastric tube from sliding and causing discomfort to the patient.

[0045] As described above, the present invention inflates the curved inflation tube 1 so that the curved inflation tube 1 expands after inflation, thereby increasing the diameter of the entire pleated nasogastric tube to fill the patient's nasal cavity. It can not only adapt to nasal cavities of various sizes, but also reduce the pressure on the patient's nasal cavity; after inflation, the fixing ring 6 will form a bulge on the outer wall of the pleated nasogastric tube, and the two fixing rings 6 are respectively located on the inner and outer sides of the patient's nostrils, clamping the patient's nostrils, further ensuring that the pleated nasogastric tube will not slide at will.

[0046] The present invention has been described with reference to the above embodiments. However, the above embodiments are merely exemplary embodiments of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the present invention. On the contrary, modifications and improvements that do not depart from the spirit and scope of the present invention are intended to be protected by the present invention.

Claims

1. A pleated nasogastric feeding tube, characterized in that: The invention comprises an air-filled tube (1) and a base tube (2), wherein the base tube (2) is a solid tube with a superior arc cross section, the air-filled tube (1) is hollow inside, the length of the air-filled tube (1) is consistent with the length of the base tube (2), the width of the upper inner wall of the air-filled tube (1) is greater than the width of the lower inner wall, and the upper tube wall of the air-filled tube (1) is formed by a plurality of tiny pleated strips (11) sequentially pasted and folded together, and the pleated strips (11) are formed by two pieces of tiny pleated strips spliced ​​in an inverted V shape, and the pleated strips are The left side pleated strip of the belt (11) is adhered to the right side pleated strip of the previous pleated belt (11), and the left and right sides of the inflation tube (1) are fixedly connected to the left and right sides of the base tube (2). The areas of the left and right sides of the inflation tube (1) are equal to the areas of the left and right ends of the base tube (2) and coincide with each other. The upper surface wall of the inflation tube (1) is also connected with an air inlet pipe (3), and the air inlet pipe (3) is located on the side of the inflation tube (1) close to the interface of the pleated nasogastric tube.

2. The pleated nasogastric feeding tube according to claim 1, characterized in that: The left side of the pleated strips is adhered to the right side of the previous pleated strip, and the surfaces where they are adhered to each other are rectangular, and the width of the adhesion between the side surfaces of the pleated strips decreases from both sides to the middle of the inflation tube (1).

3. The pleated nasogastric feeding tube according to claim 1, characterized in that: The left and right ends of the lower tube wall of the inflation tube (1) are silicone sheets, the silicone sheets are arranged tilted upward, and the silicone sheets support the upper tube wall of the inflation tube (1) when the inflation tube (1) is not inflated.

4. The pleated nasogastric feeding tube according to claim 1, characterized in that: The width of the upper surface wall of the inflation tube (1) is greater than the length of the minor arc corresponding to the major arc of the cross section of the base tube (2).

5. The pleated nasogastric feeding tube according to claim 1, characterized in that: The base tube (2) is a deformable and elastic silicone tube.

6. The pleated nasogastric feeding tube according to claim 1, characterized in that: Two openings (4) are provided on the upper surface wall of the inflation tube (1), and both openings (4) are covered with a pleated sheet (5). The lengths of the front and rear sides of the pleated sheet (5) are consistent with the lengths of the front and rear sides of the opening (4). The front and rear sides of the pleated sheet (5) are sealedly connected to the front and rear sides of the opening (4). The left and right sides of the pleated sheet (5) are fixedly sealed to the left and right sides of the opening (4) to the two sides of the fixing ring (6). The width of the pleated sheet (5) is greater than the width of the opening (4).

7. The pleated nasogastric feeding tube according to claim 6, characterized in that: The pleated sheet (5) is a rectangular sheet made of a soft material, and during the expansion process, the pleated sheet (5) and the fixing ring (6) maintain a complete ring body.

8. The pleated nasogastric feeding tube according to claim 6, characterized in that: The interior of the fixing ring (6) is hollow, the fixing ring (6) is connected to the inflation tube (1), the inner diameter of the fixing ring (6) is adapted to the outer diameter of the base tube (2), and the inner ring of the fixing ring (6) is sleeved on the outer wall of the base tube (2).

9. The method according to claim 1, wherein: An elastic sheet (7) is sequentially adhered to the inner wall of the base tube (2). The elastic sheet (7) is stretched into a rectangular strip by the arc-shaped inner wall of the base tube (2). The length of the elastic sheet (7) is consistent with the length of the base tube (2). The left and right sides of the elastic sheet (7) are fixed to the inner wall of the base tube (2), and a gap is left between the elastic sheet (7) and the inner wall of the base tube (2).

10. The pleated nasogastric feeding tube according to claim 6, characterized in that: The number of the fixing rings (6) is two, and the interval between the two fixing rings (6) is between 2 cm and 3 cm.

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