CN210096413U

CN210096413U - Medical intranasal small intestine feeding tube

Info

Publication number: CN210096413U
Application number: CN201822036121.8U
Authority: CN
Inventors: 赖美红; 王绍丽; 李红; 宋冰冰
Original assignee: Hangzhou Chinese Medicinal Hospital
Current assignee: Hangzhou Chinese Medicinal Hospital; Hangzhou Hospital of Traditional Chinese Medicine
Priority date: 2018-12-05
Filing date: 2018-12-05
Publication date: 2020-02-21
Anticipated expiration: 2028-12-05

Abstract

The utility model discloses a medical intranasal small intestine feeding tube, including straightening head, body, connection the connecting pipe of straightening head and body, insert seal wire in the body, open a plurality of nutrient solution exports on the body, is 2.5cm ~ 3cm from the distance of the nearest nutrient solution export of body front end and connecting pipe rear end face. Because the distance between the nutrient solution outlet closest to the front end of the tube body and the rear end face of the connecting tube is 2.5 cm-3 cm, and the distance between the front end of the guide wire and the rear end face of the connecting tube is 1 cm-1.5 cm, the guide wire cannot penetrate out of the nutrient solution outlet to damage the intestinal wall, and the safety is improved; the utility model provides a small intestine feeding tube obviously increases the blind success rate of putting of intranasal small intestine feeding tube, reduces the complication.

Description

Medical intranasal small intestine feeding tube

Technical Field

The utility model belongs to the field of medical equipment, a medical intranasal small intestine feeding tube is related to.

Background

In critically ill patients, early enteral nutrition intervention is required, which requires manual placement of a catheter to establish a tube feeding pathway. When a critically ill patient establishes an artificial airway for mechanical ventilation, high reflux and high aspiration risks exist, so that a catheter is usually kept in the jejunum for the critically ill patient clinically so as to reduce the incidence rate of feeding-related complications. Although nasojejunal intubation is the first choice for early enteral nutrition intervention of critical patients, the establishment of the tube feeding route has many problems in clinical practice, and the progress of early enteral nutrition is limited.

The currently used transnasal small intestine feeding tube consists of a feeding tube flexible tube body and a guide wire inserted into the feeding tube flexible tube body, when the transnasal small intestine feeding tube is used, the feeding tube flexible tube body needs to be inserted into the duodenum or jejunum of a human body for nutrition feeding, when a hospital operator inserts the tube blindly into a patient, after the transnasal small intestine feeding tube enters a pylorus, the physiological curvature is small because the transnasal intestine feeding tube enters a duodenum from the pylorus, the front end of the nasointestinal tube with the guide wire is not flexible enough, after the nasointestinal tube enters the pylorus, the front end of the nasointestinal tube with the guide wire is easy to abut against the intestinal wall and is not easy to bend, even if the transnasal small intestine feeding tube is rotated, the direction cannot be changed, and only the guide wire can be withdrawn by 1-1.5 cm, so that the flexibility of the front end of the transnasal small intestine feeding tube is increased, and after resistance occurs, the direction is easy to; in addition, because the side hole is arranged at the position 1cm away from the front end of the flexible tube body of the transnasal small intestine feeding tube, after the guide wire is withdrawn by 1-1.5 cm, the front end of the guide wire easily penetrates out of the side hole to damage the intestinal wall.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough, the utility model provides a medical intranasal small intestine feeding tube has solved and has worn out and harm the problem of intestines wall from the side opening easily at blind insertion success rate low.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the medical transnasal small intestine feeding tube comprises a straightening head, a tube body, a connecting tube for connecting the straightening head and the tube body, and a guide wire inserted into the tube body, and is characterized in that a plurality of nutrient solution outlets are formed in the tube body, and the distance between the nutrient solution outlet closest to the front end of the tube body and the rear end face of the connecting tube is 2.5 cm-3 cm.

Preferably, the guide wire is further provided with a first mark for marking that the front end of the guide wire is flush with the rear end face of the connecting pipe and a second mark for marking that the front end of the guide wire is away from the rear end face of the connecting pipe by a preset distance.

Preferably, when the front end of the guide wire is flush with the rear end face of the connecting pipe, the first mark is flush with the tail end of the pipe body; when the front end of the guide wire and the rear end face of the connecting pipe are away from each other by a preset distance, the second mark is flush with the tail end of the pipe body.

Preferably, the predetermined distance is 1cm to 1.5 cm.

Preferably, the guide wire end is provided with a scale bar.

Preferably, when the front end of the guide wire is flush with the rear end face of the connecting pipe, the tail end of the pipe body is aligned with the 0 scale of the scale bar.

Preferably, the front end of the straightening head is a sphere, the rear end of the straightening head is a cylindrical shell, the side surface of the cylindrical shell is provided with a first through hole penetrating through the side surface, the front end of the cylindrical shell is provided with a second through hole, the rear end of the cylindrical shell is sleeved on the connecting pipe and communicated with the connecting pipe, the front end of the cylindrical shell is further integrally formed with a U-shaped frame, and the U-shaped frame is connected with the sphere through a connecting rod.

Preferably, the front section of the tube body is in a pigtail shape.

Preferably, the outer wall of the tube body is provided with scales.

Preferably, the tube body has a thin line opaque to X-rays on a wall thereof.

Compared with the prior art, the beneficial effects of the utility model are as follows: the small intestine feeding tube is placed in the stomach and then enters the pylorus, the physiological curvature is small when the small intestine feeding tube enters the descending part of the duodenum from the pylorus, the guide wire needs to be withdrawn, so that the second mark on the guide wire is flush with the tail end of the tube body, and at the moment, the distance between the front end of the guide wire and the rear end face of the connecting tube is 1 cm-1.5 cm, so that the flexibility of the front end of the small intestine feeding tube is improved; and because of the existence of the straightening head, the direction is not easy to change after the resistance is met, so that the front end of the small intestine feeding tube is easy to enter duodenum. Because the distance between the nutrient solution outlet closest to the front end of the tube body and the rear end face of the connecting tube is 2.5 cm-3 cm, and the distance between the front end of the guide wire and the rear end face of the connecting tube is 1 cm-1.5 cm, the guide wire cannot penetrate out of the nutrient solution outlet to damage the intestinal wall, and the safety is improved; the utility model provides a small intestine feeding tube obviously increases the blind success rate of putting of small intestine feeding tube, reduces the complication.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the front end portion of the present invention;

FIG. 3 is a schematic view of a first marker and a second marker on a guidewire;

FIG. 4 is a schematic view of a graduated strip on a guidewire;

in the figure: straightening head 1, body 2, connecting pipe 3, seal wire 4, nutrient solution export 5, first sign 6, second sign 7, scale bar 8, spheroid 101, cylindric casing 102, first through-hole 103 second through-hole 104, U-shaped frame 105, connecting rod 106.

Detailed Description

The specific embodiments of the present invention are further described below with reference to the accompanying drawings in order to facilitate the further understanding of the present invention by those skilled in the art, and do not constitute a limitation to the right thereof.

Example 1:

as shown in fig. 1, a medical transnasal small intestine feeding tube comprises a straightening head 1, a tube body 2, a connecting tube 3 (made of metal material) for connecting the straightening head 1 and the tube body 2, and a guide wire 4 inserted into the tube body 2, wherein the front section of the tube body 2 is bent into a pigtail shape; the front end of the straightening head 1 is a sphere 101 (preventing internal organs from being stabbed), the rear end of the straightening head is a cylindrical shell 102, the side surface of the cylindrical shell 102 is provided with a first through hole 103 penetrating through the side surface, the front end of the cylindrical shell 102 is provided with a second through hole 104, the rear end of the cylindrical shell 102 is sleeved on the connecting pipe 3 and communicated with the connecting pipe 3, the front end of the cylindrical shell 102 is further integrally formed with a U-shaped frame 105, the U-shaped frame 105 is connected with the sphere 101 through a connecting rod 106, and the straightening head 1 is formed by integral thermoplastic molding; a plurality of nutrient solution outlets 5 (generally 2-3, mainly for one of them to be plugged, and the other one or more of them to be usable; and the nutrient solution outlets 5 are distributed on different cross sections of the pipe body 2, so as not to reduce the bending strength of the pipe body 2 to the maximum extent); the tube body 2 is made of medical polyurethane elastomer. The distance between the nutrient solution outlet 5 nearest to the front end of the pipe body 2 and the rear end face of the connecting pipe 3 is 2.5 cm-3 cm.

The guide wire 4 is also provided with a first mark 6 for marking the front end of the guide wire 4 to be flush with the rear end face of the connecting pipe 3 and a second mark 7 for marking the front end of the guide wire 4 to be away from the rear end face of the connecting pipe 3 by a preset distance. When the front end of the guide wire 4 is flush with the rear end face of the connecting pipe 3, the first mark 6 is flush with the tail end of the pipe body 2; when the front end of the guide wire 4 is away from the rear end face of the connecting pipe 3 by a preset distance, the second mark 7 is flush with the tail end of the pipe body 2. The preset distance is 1 cm-1.5 cm.

In the process of blind insertion of the pipe, in order to know the length of the inserted pipe body 2, scales are arranged on the outer wall of the pipe body 2, and only a scale mark is needed to be arranged every 10 cm; of course, more precise scale values are also possible.

The tube wall of the tube body 2 is provided with X-ray opaque thin lines, on one hand, the small intestine feeding tube can be placed under X-ray fluoroscopy, and on the other hand, after the tube placement is finished, whether the tube placement is successful is confirmed through X-rays.

The utility model discloses a use method as follows:

to make the tube easier to insert, the front section of the tube is wetted with sterile distilled water. The front end of the guide wire 4 is inserted into the rear end face of the connecting pipe 3, the pigtail-shaped bend of the front section of the pipe body 2 is straightened, and the first mark 6 on the guide wire 4 is flush with the tail end of the pipe body 2;

inserting the straightening head 1 into the nostril of a patient, slowly pushing the tube body 2 and the guide wire 4 together until the small intestine feeding tube is placed in the stomach and then enters the pylorus, withdrawing the guide wire 4 due to small physiological curvature after entering the descending part of duodenum from the pylorus to enable the second mark 7 on the guide wire 4 to be flush with the tail end of the tube body 2, and keeping the distance between the front end of the guide wire 4 and the rear end face of the connecting tube 3 to be 1 cm-1.5 cm at the moment so as to increase the flexibility of the front end of the small intestine feeding tube; due to the existence of the straightening head 1, the direction is not easy to change after resistance is met; then the straightening head 1 is slowly advanced again, and easily enters the descending part of the duodenum from the pylorus and finally enters the small intestine. Because the distance between the nutrient solution outlet 5 closest to the front end of the tube body 2 and the rear end face of the connecting tube 3 is 2.5 cm-3 cm, and the distance between the front end of the guide wire 4 and the rear end face of the connecting tube 3 is 1 cm-1.5 cm, the guide wire 4 cannot penetrate out of the nutrient solution outlet 5 to damage the intestinal wall, and the safety is improved; the utility model provides a small intestine feeding tube obviously increases the blind success rate of putting of small intestine feeding tube, reduces the complication.

Example 2:

the difference between this embodiment and embodiment 1 is that the first mark 6 and the second mark 7 are directly replaced by a scale bar 8, and when the front end of the guide wire 4 is flush with the rear end surface of the connecting tube 3, the end of the tube body 2 is aligned with the "0" scale of the scale bar 8. This allows for more convenient adjustment of the amount of guidewire 4 withdrawn. This embodiment is a more preferable embodiment than embodiment 1.

Claims

1. The medical transnasal small intestine feeding tube comprises a straightening head, a tube body, a connecting tube for connecting the straightening head and the tube body, and a guide wire inserted into the tube body, and is characterized in that a plurality of nutrient solution outlets are formed in the tube body, and the distance between the nutrient solution outlet closest to the front end of the tube body and the rear end face of the connecting tube is 2.5 cm-3 cm.

2. The medical transnasal small intestine feeding tube according to claim 1, wherein the guide wire further has a first mark thereon for marking that the front end of the guide wire is flush with the rear end face of the connecting tube, and a second mark thereon for marking that the front end of the guide wire is a predetermined distance away from the rear end face of the connecting tube.

3. The medical transnasal small intestine feeding tube according to claim 2, wherein the first mark is flush with the end of the tube body when the front end of the guide wire is flush with the rear end face of the connecting tube; when the front end of the guide wire and the rear end face of the connecting pipe are away from each other by a preset distance, the second mark is flush with the tail end of the pipe body.

4. The medical transnasal small intestine feeding tube according to claim 2 or 3, wherein the predetermined distance is 1cm to 1.5 cm.

5. The medical transnasal small intestine feeding tube according to claim 1, wherein the guide wire end has a scale bar.

6. The medical transnasal small intestine feeding tube according to claim 5, wherein the end of the tube body is aligned with the "0" scale of the scale bar when the front end of the guide wire is flush with the rear end face of the connecting tube.

7. The medical feeding tube for small intestine through nose as claimed in claim 1, wherein the straightening head has a spherical front end and a cylindrical rear end, the cylindrical housing has a first through hole formed through the side surface, the cylindrical housing has a second through hole formed at the front end, the cylindrical housing has a rear end sleeved on and communicated with the connecting tube, the cylindrical housing further has a U-shaped frame integrally formed at the front end, and the U-shaped frame is connected to the spherical body through the connecting rod.

8. The medical transnasal small intestine feeding tube according to claim 1, wherein the outer wall of the tube body has graduations.

9. The medical feeding tube via nose small intestine of claim 1, wherein the tube body has fine lines on its wall, which are opaque to X-ray.