JP3222751U - Nasogastric tube structure - Google Patents

Abstract

The present invention provides a nasogastric tube structure in which a nasoscope can be inserted into the stomach. A nasogastric tube structure includes a hollow first tube body 1, a sandwiching member 2, and a positioning member 3. Openings 11 are provided at both front and rear ends of the first tubular body 1. The opening 11 at the front end has a throttle shape. The first tubular body 1 is formed by penetrating one or more through holes 13 at a location adjacent to the opening 11 at the front end. As for the 1st pipe body 1, the fitting groove | channel 15 adjacent to the opening part 12 of a rear end is formed on a pipe wall. The clamping member 2 has two positioning step portions 21 corresponding to each other. Between the two positioning step portions 21, a ring step portion 22 having a C-shaped cross section is provided. The ring step portion 22 is fitted in correspondence with the fitting groove 15 of the first tubular body 1. The positioning member 3 is fitted on the two positioning step portions 21 at the same time, and the two positioning step portions 21 are brought as close as possible to generate a pinching force on the ring step portion 22. [Selection] Figure 1

Description

  The present invention relates to a nasogastric tube structure, and more particularly to a nasogastric tube structure in which a nasal endoscope can be inserted into the stomach.

  If a person or animal has difficulty chewing or swallowing or coughing, the meal time may be prolonged, the amount of meal may be reduced, malnutrition may occur, or electrolyte or water may be insufficient. Also, if unconscious and unable to swallow food, the doctor inserts a nasogastric tube into the patient or animal in such a situation and gives fluid or nutrients to the patient or animal through the nasogastric tube. Feed directly into the stomach of the animal. As a result, the patient or animal can be prevented from coughing when eating, and the life of the patient or animal can be maintained, so that a caregiver can reduce the time and labor for caring for the patient or animal.

  Nasogastric tube is a tube that can quickly administer nutrients, but it must be inserted from the nasal passage through the esophagus to the stomach, so it belongs to invasive treatment and there is a risk of infection. there were. In particular, if the patient or animal loses consciousness, even if the patient or animal is inadvertently stabbed into the bronchus, the patient or animal is not conscious. May have a serious adverse effect on the health of patients or animals. Therefore, there has been a demand for reducing the risk of infection that occurs when a nasogastric tube is inserted into the stomach.

  The inventor is a doctor who specializes in gastroenterology and is specialized in view of the problems that occur when using a conventional nasogastric tube and the actual situation when installing a nasogastric tube clinically. As a result of constant efforts based on the knowledge of the house, he came up with the idea of the present invention.

  The main purpose of the present invention is to insert the nasal endoscope smoothly into the stomach by using the lens of the nasal endoscope and the characteristic of controlling the direction of travel, coupled with the nasal endoscope. It is to provide a nasogastric tube structure that can be used.

  In order to solve the above problems, according to a first aspect of the present invention, there is a nasogastric tube structure comprising a hollow first tube body, a sandwiching member, and a positioning member, Openings are provided at both front and rear ends of the first tubular body, the opening at the front end has a throttle shape, and one first tubular body is provided at a location adjacent to the opening at the front end. The above through-holes are formed by penetrating through the tube wall, the first tube has a fitting groove formed on the tube wall adjacent to the opening at the rear end, and the holding members correspond to each other. There are two positioning step portions, and a ring step portion having a C-shaped cross section is provided between the two positioning step portions, and the ring step portion corresponds to the fitting groove of the first tubular body. The positioning member is simultaneously fitted on the two positioning step portions, and the two positioning step portions are brought as close as possible to Providing NGT structure, characterized in that to generate a clamping force to the ring step portion.

  The nasogastric tube structure of the present invention is fitted and fixed to a nasal endoscope, and has a characteristic of transmitting an image using a lens on the nasal endoscope and controlling the traveling direction. As a result, the medical staff can smoothly insert the nasogastric tube into the stomach, smoothly and conveniently attach the nasogastric tube, and reduce the risk of infection.

1 is an exploded perspective view showing a nasogastric tube and a nasal endoscope according to an embodiment of the present invention. 1 is an exploded perspective view showing a state in which a nasogastric tube according to an embodiment of the present invention is externally fitted to a nasal endoscope and a positioning member is not yet fixed to two positioning steps. FIG. It is side surface sectional drawing which shows the state by which the nasogastric tube which concerns on one Embodiment of this invention was externally fitted to the nasal endoscope, and the positioning member was already fixed to two positioning step parts. It is front sectional drawing which shows the state in which the positioning member of the nasogastric tube which concerns on one Embodiment of this invention is not yet fixed to two positioning step parts, and the state already fixed to two positioning step parts. It is a perspective view which shows another positioning member of the nasogastric tube which concerns on one Embodiment of this invention. FIG. 6 is a front cross-sectional view showing a state where the other positioning members of FIG. 5 are not yet fixed to two positioning step portions and a state where they are already fixed to two positioning step portions. It is a disassembled perspective view which shows the end cover (1) arrange | positioned at the front end of the 1st tubular body. FIG. 8 is an exploded perspective view showing a state in which a nasogastric tube is externally fitted to a nasal endoscope under the state of FIG. 7 and a positioning member is not yet fixed to two positioning steps. It is an enlarged view which shows the end cover (1) arrange | positioned at the front end of the 1st tubular body. It is a disassembled perspective view which shows the nasogastric tube of the end cover (2) arrange | positioned at the front end of the 1st tubular body. It is a disassembled perspective view which shows the nasogastric tube of the end cover (3) arrange | positioned at the front end of the 1st tubular body. It is an enlarged view which shows the end cover (3) arrange | positioned at the front end of the 1st tubular body. It is a disassembled perspective view which shows the nasogastric tube of the end cover (4) arrange | positioned at the front end of the 1st tube. It is a disassembled perspective view which shows the nasogastric tube where the tube diameter of the back | latter stage part of a 1st tube body is larger than the tube diameter of the front | former part of a 1st tube body. FIG. 5 is an exploded perspective view showing a nasogastric tube having an arc-shaped concave portion in which the tube diameter of the front stage portion of the first tube body gradually decreases in the axial direction from the front end to the rear end and gradually increases in the axial direction. . FIG. 16 is a perspective view showing a state in which a nasogastric tube is externally fitted to a nasal endoscope under the state of FIG. 15 and a positioning member is not yet fixed to two positioning steps. FIG. 16 is a cross-sectional view showing a state in which a nasogastric tube is externally fitted to a nasal endoscope under the state of FIG. 15 and a positioning member is already fixed to two positioning steps. FIG. 5 is an exploded perspective view of a narrow tubular nasogastric tube having a flexible step portion that can be bent at the front step portion. It is sectional drawing which shows the bellows pipe body in which the cross section of a flexible step part exhibits a sawtooth shape. It is sectional drawing which shows the bellows tube which the cross section of a flexible step part exhibits circular arc shape. FIG. 5 is an exploded perspective view of a thick tube-shaped nasogastric tube having a flexible step portion that can be bent at the front step portion. FIG. 18 is a perspective view showing an embodiment of the nasogastric tube shown in FIGS.

  First, reference will be made to FIGS. FIG. 1 is an exploded perspective view showing a nasogastric tube and a nasal endoscope according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing a state in which a nasogastric tube according to an embodiment of the present invention is externally fitted to a nasal endoscope, and a positioning member is not yet fixed to two positioning steps. FIG. 3 is a side cross-sectional view showing a state in which a nasogastric tube according to an embodiment of the present invention is externally fitted to a nasal endoscope, and a positioning member is already fixed to two positioning steps. FIG. 4 is a front cross-sectional view illustrating a state in which a positioning member of a nasogastric tube according to an embodiment of the present invention is not yet fixed to two positioning steps, and a state in which the positioning member is already fixed to two positioning steps. It is.

  As shown in FIGS. 1 to 4, the nasogastric tube structure according to an embodiment of the present invention is composed of at least a hollow first tube 1, a clamping member 2, and a positioning member 3. It becomes.

  Openings 11 and 12 are provided at both front and rear ends of the first tubular body 1. The opening 11 at the front end has a diaphragm shape, and the lens at the tip of the nasal endoscope 4 inserted into the first tube 1 is exposed, but protrudes outward from the opening 11. To prevent that. The first tubular body 1 is formed by penetrating one or more through holes 13 at a location adjacent to the opening 11 at the front end. In the first tube 1, a stopper ring 14 is formed on the tube wall at a location adjacent to the opening 12 at the rear end. The stopper ring 14 has a plurality of perforations 141. A fitting groove 15 is formed at a location adjacent to the stopper ring 14 in the tube wall of the first tube body 1.

  The clamping member 2 includes two positioning step portions 21 corresponding to each other. A ring step portion 22 having a C-shaped cross section is connected between the two positioning step portions 21. The ring step portion 22 is fitted in correspondence with the fitting groove 15 of the first tubular body.

  The positioning member 3 is fitted on the two positioning step portions 21 at the same time, and the two positioning step portions 21 are brought as close as possible to generate a pinching force on the ring step portion 22. The nasal endoscope 4 inserted in the body 1 is positioned on the first tubular body 1 to prevent the nasal endoscope 4 from sliding off.

  As shown in FIGS. 1-4, the external thread part 211 is provided in the outer surface of the two positioning step parts 21 of this embodiment. The positioning member 3 has a female screw portion 31. In the positioning member 3, the positioning member 3 is fixed on the two positioning step portions 21 when the female screw portion 31 is screwed in correspondence with the male screw portions 211 on the two positioning step portions 21.

  As shown in FIGS. 5 and 6, the positioning member 3 according to this embodiment has a fitting hole 32. Two positioning step portions 21 are fitted into the fitting holes 32, and the positioning member 3 is fixed on the two positioning step portions 21.

Please refer to FIGS. As shown in FIGS. 1 to 4, when the nasogastric tube is inserted into the stomach, when the first tube body 1 of the nasogastric tube is externally fitted to the nasal endoscope 4, the nasal endoscope 4 The front end lens is exposed from the opening 11 at the front end of the first tube 1.
Since the diameter of the opening 11 is smaller than the front end of the nasal endoscope 4, the nasal endoscope 4 is prevented from protruding from the opening 11. Subsequently, after arranging the ring step portion 22 of the clamping member 2 around the fitting groove 15 of the first tubular body 1, the positioning member 3 fixes the two positioning step portions 21 of the clamping member 2, When the positioning member 3 is screwed to the holding member 2, the first tube 1 is fixed to the nasal endoscope 4. Therefore, when a medical worker inserts a nasogastric tube, the current position of the nasogastric tube is known through an image taken by the lens of the nasoscope 4 and sent, and the nasoscope is inserted. 4 can determine the advancing direction of the nasogastric tube, so that the nasogastric tube can be smoothly inserted to the stomach.

  If the positioning member 3 is removed from the positioning step portion 21 of the holding member 2 after the nasogastric tube is inserted to the stomach, the nasogastric tube and the transnasal endoscope 4 will not be held by the holding member 2. The nasal endoscope 4 can be extracted, and only the nasogastric tube can be left in the human body to administer the nutrient.

  Please refer to FIG. As shown in FIGS. 7 to 9, a conical end cover 16 is fitted into the opening 11 at the front end of the first tubular body 1 of the present embodiment. Since the metal photosensitive layer is formed on the surface of the end cover 16, the exact position of the end cover 16 can be displayed by irradiation with the X-ray generator. Further, the end cover 16 can prevent the nasal endoscope 4 from further protruding from the opening 11 at the front end.

Please refer to FIG. 10-13 display the end covers 16a, 16b, 16c in various aspects. The end cover 16a has a top surface 16a1 at the tip and a cross cut 16a2 is formed on the top surface 16a1 to prevent the transnasal endoscope 4 from protruding from the opening 11 at the front end.
The end cover 16b has a circular tube step portion 16b2 connected to the rear side of the conical step portion 16b1, and the opening diameter of the conical step portion 16b1 is smaller than the tube diameter of the transnasal endoscope 4; The nasal endoscope 4 is prevented from protruding. The end cover 16c has a circular tube step portion 16c2 connected to the rear of the conical step portion 16c1, a top surface 16c3 formed at the tip, and a cross notch 16c4 formed on the top surface 16c3.

  Please refer to FIG. The first tubular body 1 shown in FIGS. 1 to 3 has substantially the same tube diameter size from the opening 11 at the front end to the opening 12 at the rear end.

  As for the 1st pipe body 1 shown in FIG. 14, the pipe diameter of a back | latter stage part is larger than the pipe diameter of a front | former stage part.

  The first tube 1 shown in FIGS. 15 to 17 has a tube diameter of the front portion that gradually increases in the axial direction from the opening 11 at the front end toward the rear, and gradually increases. It is formed in the shape of an arcuate recess.

  As shown in FIG. 18, the nasogastric tube structure according to an embodiment of the present invention is provided with a flexible step portion 17 that can be bent at the front step portion of the first tube body 1.

  The flexible step portion 17 shown in FIG. 19 is a bellows tube having a sawtooth cross section. The flexible step portion 17 shown in FIG. 20 is a bellows tube having a circular cross section.

  FIG. 18 shows an embodiment in which a flexible step portion 17 is installed in the first tubular body 1 of FIGS. FIG. 21 shows an embodiment in which a flexible step portion 17 is installed in the first tubular body 1 of FIG. FIG. 22 shows an embodiment in which the flexible step portion 17 is installed in the first tubular body 1 of FIGS. 15 to 17.

  As shown in FIGS. 1 to 22, the nasogastric tube of the present embodiment further includes a second tube 5 and a coupling member 6, and a first coupling end is provided at the rear end of the first tube 1. 18 may be provided. A second coupling end 51 is provided at the front end of the second tubular body 5. The coupling member 6 is a hollow annular body, and a coupling portion 61 is provided on the inner wall surface thereof. The first coupling end 18 and the second coupling end 51 are connected and fixed to both front and rear ends of the coupling member 6 via a coupling portion 61.

As can be seen from the above, the nasogastric tube structure of the present invention uses the coupling member 6 to movably join and separate the first tube body 1 and the second tube body 5. It has the characteristics that can be done.
The patient joins the first tube body 1 and the second tube body 5 or removes the second tube body 5 according to the actual situation, for example, when no nutrient is administered, the second tube body Since 5 can be removed, the second tubular body 5 does not hang down outside the nose. Therefore, it is possible to prevent the patient's external appearance from being different from others, and in addition, when the patient removes the second tube 5 and directly attaches the mask, the other person gives the patient a nasogastric tube. The patient does not feel embarrassed because it is not known that is attached.

DESCRIPTION OF SYMBOLS 1 1st pipe body 2 Holding member 3 Positioning member 4 Nasal endoscope 5 2nd pipe body 6 Connection member 11 Opening part 12 Opening part 13 Through-hole 14 Stopper ring 15 Fitting groove 16 End cover 16a End cover 16a1 Top surface 16a2 Cross notch 16b End cover 16b1 Conical step 16b2 Circular tube step 16c End cover 16c1 Conical step 16c2 Circular tube step 16c3 Top surface 16c4 Cross notch 17 Flexible step 18 First coupling end 21 Positioning step 21 22 ring step portion 31 female screw portion 32 fitting hole 51 second coupling end 61 coupling portion 141 perforation 211 male screw portion

Claims (7)

A nasogastric tube structure comprising a hollow first tube, a clamping member, and a positioning member,
Openings are provided at both front and rear ends of the first tubular body, the opening at the front end has a throttle-like shape, and the first tubular body is located at a location adjacent to the opening at the front end. One or more through holes are formed through the tube wall, and the first tube has a fitting groove formed on the tube wall adjacent to the opening at the rear end,
The clamping member has two positioning step portions corresponding to each other, and a ring step portion having a C-shaped cross section is provided between the two positioning step portions. Fit to the fitting groove of the tube,
The positioning member is simultaneously fitted on the two positioning step portions, and the two positioning step portions are brought as close as possible to generate a pinching force on the ring step portion,
Nasogastric tube structure.   A male screw part is provided on the outer surface of the two positioning step parts, the positioning member has a female screw part, and when the female screw part is screwed in correspondence with the male screw part, the positioning member is The nasogastric tube structure according to claim 1, wherein the nasogastric tube structure is fixed on the two positioning steps.   The positioning member has a fitting hole, and the two positioning step portions are fitted into the fitting hole, and the positioning member is fixed on the two positioning step portions. The nasogastric tube structure according to claim 1.   The tube diameter of the front stage portion of the first tube body is smaller than the tube diameter of the rear stage portion of the first tube body, or the tube diameter of the front stage portion of the first tube body is increased from the front toward the rear. The nasogastric tube structure according to claim 3, wherein the tube body of the paragraph portion is formed in the shape of an arc-shaped recess, and gradually increases after becoming smaller in the direction.   A flexible step portion that can be bent is provided in a front step portion of the first tube body, and the flexible step portion is a bellows tube body having a sawtooth shape or an arc shape in cross section. The nasogastric tube structure according to claim 4.   A second tube body and a coupling member; a first coupling end provided at a rear end portion of the first tube body; and a second coupling body disposed at a front end portion of the second tube body. An end is provided, the coupling member is a hollow annular body, a coupling portion is provided on an inner wall surface, and the first coupling end and the first coupling end are provided at both front and rear ends of the coupling member via the coupling portion. The nasogastric tube structure according to claim 5, wherein two coupling ends are connected and fixed. A second tube body and a coupling member; a first coupling end provided at a rear end portion of the first tube body; and a second coupling body disposed at a front end portion of the second tube body. An end is provided, the coupling member is a hollow annular body, a coupling portion is provided on an inner wall surface, and the first coupling end and the first coupling end are provided at both front and rear ends of the coupling member via the coupling portion. The nasogastric tube structure according to claim 1, wherein two coupling ends are connected and fixed.

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