CN216629191U

CN216629191U - Visual nasogastric tube with controllable bent head

Info

Publication number: CN216629191U
Application number: CN202122816960.3U
Authority: CN
Inventors: 阿晓君
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-05-31
Anticipated expiration: 2031-11-17

Abstract

The utility model discloses a visible nasogastric tube with a controllable bent head, which comprises a nasogastric tube body, wherein a nutrition cavity, a head bending control cavity and a gastrointestinal decompression cavity are arranged in the nasogastric tube body; a visual cavity is arranged on the nasogastric tube body positioned at the far end of the gastrointestinal decompression cavity; the gastrointestinal decompression device is characterized by also comprising a camera and a data wire which are connected with each other, wherein the camera and the data wire are detachably arranged in the gastrointestinal decompression cavity in a penetrating manner; a control line is arranged in the head bending control cavity in a penetrating way; one end of the control wire is connected with the part of the head bending control cavity positioned at the head of the nasogastric tube body, and the other end of the control wire is connected with a wire pulling mechanism. The visible nasogastric tube with the controllable bent head can bend the head of the nasogastric tube body through operating the control line and enter an esophagus and a pylorus more accurately, and the gastrointestinal decompression cavity is used as a camera channel at the same time, so that the cross section of the visible nasogastric tube can be reduced, and the visible nasogastric tube can be inserted into the esophagus and the pylorus.

Description

Visual nasogastric tube with controllable bent head

Technical Field

The utility model relates to the field of nasal gastrointestinal tubes, in particular to a visible nasal gastrointestinal tube with a bending-controllable head.

Background

The nasal gastrointestinal tube is a clinical common enteral nutrition catheter, is used for providing nutrient substances for life support or postoperative rehabilitation of patients who cannot independently eat food through the esophagus but have healthy gastrointestinal functions, and can also provide medicines, gastrointestinal decompression and drainage of gastric contents. In current clinical use, when a gastrointestinal tube is inserted into a tube through the nose, the tail end of the tube body reaches the esophageal opening and reaches the pylorus from the stomach, due to the inherent physiological structure of the human body, when the gastrointestinal tube passes through the esophageal opening and the pylorus opening, the problem that the esophageal opening and the pylorus opening are difficult to accurately find occurs, and medical staff can enter the esophagus and the duodenum after repeated pulling and pushing and multiple attempts. Intubation accuracy is low, efficiency is low, nausea and fear are common to patients, and repeated intubation may cause potential risks of digestive tract mucosa injury of patients.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a visible nasogastric tube with a controllable bent head, the head of the nasogastric tube body can be bent by operating a control line, meanwhile, the visible function of a camera is assisted, the internal structure of a digestive tract is directly viewed on a display screen, the bending angle of the head of the tube body is controlled, the tube body can enter an esophagus and a pylorus inlet more accurately, and a gastrointestinal decompression cavity is simultaneously used as a camera channel, so that the cross section of the visible nasogastric tube can be reduced, and the visible nasogastric tube can be inserted into the esophagus and the pylorus.

In order to realize the aim, the utility model provides a visible nasogastric tube with a controllable head bending, which comprises a nasogastric tube body, wherein a nutrition cavity, a head bending control cavity and a gastrointestinal decompression cavity are arranged in the nasogastric tube body; a visual cavity is arranged on the nasogastric tube body positioned at the far end of the gastrointestinal decompression cavity; the gastrointestinal decompression device is characterized by also comprising a camera and a data wire which are connected with each other, wherein the camera and the data wire are detachably arranged in the gastrointestinal decompression cavity in a penetrating manner; a control line is arranged in the head bending control cavity in a penetrating way; one end of the control wire is connected with the part of the head bending control cavity positioned at the head of the nasogastric tube body, and the other end of the control wire is connected with a wire pulling mechanism.

As a further improvement of the utility model, the bending control cavity is provided with a control line protecting sleeve, the outer side of the control line protecting sleeve is in contact with the side wall of the bending control cavity, and the control line penetrates through the inner side of the control line protecting sleeve; the distance between one end of the control line protecting sleeve close to the head of the nasogastric tube body and the top end of the head of the nasogastric tube body is a, and a is 1-5 cm; the control line protecting jacket is of a soft tubular structure.

As a further improvement of the utility model, the control line protection sleeve is one of a metal spring tube, a plastic hose or a braided composite tube.

As a further improvement of the utility model, a camera protecting sleeve is arranged in the gastrointestinal decompression cavity, the outer side of the camera protecting sleeve is in contact with the side wall of the gastrointestinal decompression cavity, and the camera and the data line detachably penetrate through the camera protecting sleeve; the camera lag is soft tubular structure.

As a further improvement of the utility model, the camera protective sleeve is one of a metal spring tube, a plastic hose or a woven composite tube.

As a further improvement of the utility model, the nutrition cavity is positioned in the middle of the nasogastric tube body, and the head and the tail of the nasogastric tube body are respectively provided with a nutrition cavity outlet and a nutrition cavity inlet which are communicated with the nutrition cavity; the gastrointestinal decompression cavity and the head bending control cavity are respectively positioned at two sides of the nutrition cavity; the nutrition cavity both sides all are equipped with interior concave part, and the interior concave part of both sides is adjacent arranging with stomach intestine decompression chamber and head bending control chamber respectively.

In a further improvement of the present invention, the wire pulling mechanism is provided with a control wire operating part.

As a further improvement of the utility model, the tail part of the gastrointestinal decompression cavity is provided with a negative pressure interface; the tail end of the data line penetrates out of the negative pressure interface and is connected with a display screen.

As a further improvement of the utility model, the outer wall of the nasogastric tube body is coated with a lubricating functional coating; the surface of the inner wall of the nutrition cavity is coated with an anti-adhesion coating.

Advantageous effects

Compared with the prior art, the visible nasogastric tube with the bending-controllable head has the advantages that:

1. through the tractive control line of guyed mechanism, can let nasogastric tube body head crooked, more accurate esophagus and pylorus entry get into reduces the operation degree of difficulty, avoids the patient to appear sick, fear bad psychology such as far as, reduces the risk that patient's alimentary canal mucosa is impaired. In addition, the gastrointestinal decompression cavity is used as a camera channel at the same time, an independent camera channel is not required to be additionally arranged, the cross section of the visible nasogastric-intestinal tube is favorably reduced, and the gastrointestinal decompression cavity is smoother when being inserted into the esophagus and the pylorus. The camera is drawn out after the intubation is finished and can be used as a gastrointestinal decompression cavity, and the camera can be reinserted into the cavity to be used as a visual cavity according to the condition of an illness or the examination requirement after the gastrointestinal decompression is finished.

2. The control line protective sleeve of the soft tubular structure can ensure certain flexibility, meanwhile, the distance a between one end of the protective sleeve and the top end of the head of the nasogastric tube body is 1-5cm, when the control line is operated, the head of the nasogastric tube body can be bent by taking one end of the protective sleeve of the control line as a fulcrum, the bending effect of the head of the nasogastric tube body is more obvious compared with that of the rear section of the nasogastric tube body, and the control line protective sleeve is more beneficial to entering an esophagus and a pylorus inlet.

3. Nutrition chamber both sides all are equipped with interior concave part, and the interior concave part of both sides respectively with intestines and stomach decompression chamber and the crooked control chamber of head adjacent arrangement, can reduce the diameter of nasogastric tube body by a wide margin under the prerequisite that does not reduce nutrition chamber cross section by a wide margin, do benefit to the plug.

The utility model will become more apparent from the following description when taken in conjunction with the accompanying drawings, which illustrate embodiments of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is one of the cross-sectional views of a visible nasogastric tube with controlled flexion of the head;

FIG. 2 is a view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of FIG. 1 at B;

FIG. 4 is an enlarged view at C of FIG. 1;

FIG. 5 is a second cross-sectional view of the visible nasogastric tube with the head controllably bent;

fig. 6 is a third cross-sectional view of the visible nasogastric tube with the head controllably bent.

Detailed Description

Embodiments of the present invention will now be described with reference to the accompanying drawings.

Examples

Detailed description of the utility modelas shown in fig. 1 to 6, a nasogastric tube for visualization of bending control of a head includes a nasogastric tube body 1. A nutrition cavity 2, a head bending control cavity 3 and a gastrointestinal decompression cavity 7 are arranged in the nasogastric tube body 1. The nasogastric tube body 1 located at the distal end of the gastrointestinal decompression chamber 7 is provided with a visualization chamber 71. The visible nasogastric tube with the controllable bent head further comprises a camera 8 and a data wire 81 which are connected, and the camera 8 and the data wire 81 are detachably arranged in the gastrointestinal decompression cavity 7 in a penetrating mode. A control wire 5 is arranged in the head bending control cavity 3 in a penetrating way. One end of the control wire 5 is connected with the part of the head bending control cavity 3 at the head of the nasogastric tube body 1, and the other end of the control wire 5 is connected with a wire pulling mechanism 6. The visual cavity 71 is communicated with the outer side of the head of the nasogastric tube body 1, and the camera 8 can acquire pictures outside the head of the nasogastric tube body 1 through the visual cavity 71.

The nasogastric tube body 1 with the controllable head bending is made of high polymer materials, and can be made of various plastics or rubber materials such as PVC, TPU, silica gel, thermoplastic elastomer materials and the like. The control wire 5 is made of rigid or flexible high-strength material, and the material of the control wire can be metal wire, polymer plastic, polymer rubber, polymer fiber or natural fiber. The diameter of the control wire 5 may be in the range 0.05mm-0.9 mm. The material of the control wire 5 is preferably nitinol wire.

The bending control cavity 3 is provided with a control line protecting sleeve 4, and the control line protecting sleeve 4 is of a soft tubular structure. The outside of control line lag 4 contacts with the lateral wall in crooked control chamber 3, and control line 5 wears to establish at control line lag 4 inboardly. The distance between one end of the control line protecting sleeve 4 close to the head of the nasogastric tube body 1 and the top end of the head of the nasogastric tube body 1 is a, and a is 1-5 cm. The smaller the nasogastric tube gauge, the smaller the distance, the larger the gauge, the larger the distance. The optimal distance size is 1.5-3.0cm, the smaller the size of the nasogastric tube body is, the distance is set, the effect that the head of the nasogastric tube body 1 can be bent by taking the end part of the control line protection sleeve 4 as a bending supporting point under the action of the control line 5 is effectively improved, and the head of the nasogastric tube body 1 is easier to bend. Meanwhile, even if the hardness of the head of the nasogastric tube body 1 is consistent with that of the whole nasogastric tube body 1 and the head of the nasogastric tube body 1 is not separately made into a soft section, the head of the nasogastric tube body 1 can be effectively bent under the action of the pull wire.

The control line protecting jacket 4 is one of a metal spring pipe, a plastic hose or a braided composite pipe. In this embodiment, the control line protection sleeve 4 is preferably a metal spring tube, and the metal spring tube has good arbitrary bending characteristic, radial compression resistance characteristic, inner wall low friction resistance characteristic, stretch resistance, bending deformation resistance, fracture resistance and corrosion resistance. The inner diameter of the metal spring tube is 0.1mm-1.0mm, the outer diameter is 0.3mm-1.5mm, the material is stainless steel or other metals, such as spring wire of medical cardiovascular or urological metal guide wire. In this embodiment, the control line protecting sleeve 4 is a 304 stainless steel spring, the inner diameter of the small-specification nasogastric and intestinal control line protecting sleeve is 0.1mm-0.5mm, the inner diameter of the large-specification nasogastric and intestinal control line protecting sleeve is 0.5mm-1.0mm, and the inner diameter of the medium-specification nasogastric and intestinal control line protecting sleeve is 0.4 mm-0.7 mm.

Be equipped with camera lag 10 in the stomach and intestine decompression chamber 7, the outside of camera lag 10 contacts with the lateral wall in stomach and intestine decompression chamber 7, and camera 8 and data line 81 detachably pass camera lag 10. The camera protective cover 10 is of a soft tubular structure, so that the camera 8 and the data cable 81 can be freely and smoothly inserted into and pulled out of the camera protective cover 10.

The camera shield 10 is preferably a metal spring tube. Similar to the control line protecting sleeve 4 adopting a metal spring tube, the inner diameter of the camera protecting sleeve 10 of the metal spring tube is between 1.0mm and 3.0mm, and the material is stainless steel or other metals. For example, the spring wire of a medical cardiovascular or urological metal guide wire may be used.

The camera 8 can adopt an endoscope, a light bar or an optical fiber; can be used for one time or repeatedly. When the endoscope or the optical wand is repeatedly used, a transparent soft outer sleeve is made outside the endoscope or the optical wand, the outer sleeve can be discarded after one-time insertion operation is finished, and a new outer sleeve is replaced when the endoscope or the optical wand is used again. The camera 8 preferably adopts a superfine camera with the diameter of about 1.0mm, occupies the diameter and the sectional area of the nutrition cavity 2 as little as possible, so as to keep the flow of the larger nutrition cavity as much as possible and reduce the potential risk of the blockage of the nutrition cavity.

The nutrition cavity 2 is positioned in the middle of the nasogastric tube body 1, and the head and the tail of the nasogastric tube body 1 are respectively provided with a nutrition cavity outlet 22 and a nutrition cavity inlet 21 which are communicated with the nutrition cavity 2. The gastrointestinal decompression cavity 7 and the head bending control cavity 3 are respectively positioned at two sides of the nutrition cavity 2. Both sides of the nutrition cavity 2 are provided with concave parts 23, and the concave parts 23 on both sides are respectively arranged adjacent to the gastrointestinal decompression cavity 7 and the head bending control cavity 3.

The tube body material of the bending section of the nasogastric tube body 1 can be consistent with the hardness of the front section and the middle and rear sections of the tube body 1, and softer material can be selected, so that the head of the nasogastric tube body 1 is easier to bend under the traction of the control line 5.

The wire pulling mechanism 6 is provided with a control wire operating part which can adopt a push-pull button or a knob. When the push-pull button is adopted, the push-pull button is connected with the main body of the wire pulling mechanism 6 in a sliding mode and is connected with the tail end of the control wire 5, the head of the nasogastric tube body 1 is dragged through axial push-pull, and therefore the head of the nasogastric tube body 1 is bent relative to the tail section of the nasogastric tube body. When the knob is adopted, the tail end of the control wire 5 is wound on the rotating shaft of the knob, and the control wire 5 is wound and unwound through the knob, so that the bending degree of the head of the stomach tube body 1 is controlled.

The tail part of the gastrointestinal decompression cavity 7 is provided with a negative pressure interface 72. The end of the data line 81 passes through the negative pressure port 72 and is connected with the display screen 9. When the nasogastric tube is used, the image of the outside of the nasogastric tube body 1 acquired by the camera 8 is observed through the display screen 9, the esophageal entrance or the pyloric duodenum entrance is observed, the bending angle of the head of the nasogastric tube body 1 relative to the tail section of the nasogastric tube body is adjusted through the push-pull button or the knob on the wire pulling mechanism 6, and the image enters the esophagus or the duodenum at a proper entrance angle. After the head of the nasogastric tube body 1 smoothly enters the esophagus or the duodenum, the push-pull button or the knob is operated reversely to restore the bent head angle of the nasogastric tube body 1 to the original state.

The outer wall of the nasogastric tube body 1 is coated with the lubricating function coating 11, so that the frictional resistance of the intubation tube is reduced, the smoothness of the intubation tube is improved, and the stimulation and damage to gastrointestinal mucosa in the process of inserting the tube body into the gastrointestinal tract are reduced. The surface of the inner wall of the nutrition cavity 2 is coated with the anti-adhesion coating, so that the adhesion of nutrient substances to the inner wall of the nutrition cavity can be reduced, and the potential risk of blockage of the nutrition cavity is reduced.

The working principle of the visualization cavity and the gastrointestinal tract decompression cavity is as follows:

after the intubation is finished, the camera 8 is drawn out from the gastrointestinal decompression cavity 7, and then the negative pressure interface 72 is connected with the negative pressure suction tube, so that the gastrointestinal decompression cavity structure is realized, and the negative pressure source is provided through the negative pressure suction equipment, so that the gastrointestinal decompression function is realized. After gastrointestinal decompression is finished, the camera can be reinserted into the cavity to be used as a visual cavity according to the condition of an illness or the requirement of examination.

The present invention has been described in connection with the preferred embodiments, but the present invention is not limited to the embodiments disclosed above, and is intended to cover various modifications, equivalent combinations, which are made in accordance with the spirit of the present invention.

Claims

1. A visible nasogastric tube with a controllable head bending comprises a nasogastric tube body (1), and is characterized in that a nutrition cavity (2), a head bending control cavity (3) and a gastrointestinal decompression cavity (7) are arranged in the nasogastric tube body (1); a visual cavity (71) is arranged on the nasogastric tube body (1) positioned at the far end of the gastrointestinal decompression cavity (7); the gastrointestinal decompression device also comprises a camera (8) and a data line (81) which are connected, wherein the camera (8) and the data line (81) are detachably arranged in the gastrointestinal decompression cavity (7) in a penetrating way; a control line (5) is arranged in the head bending control cavity (3) in a penetrating way; one end of the control wire (5) is connected with the part of the head bending control cavity (3) which is positioned at the head part of the nasogastric tube body (1), and the other end of the control wire (5) is connected with a wire pulling mechanism (6).

2. The visible nasogastric tube with the bending-controllable head according to claim 1, wherein the bending control cavity (3) is provided with a control line protecting sleeve (4), the outer side of the control line protecting sleeve (4) is in contact with the side wall of the bending control cavity (3), and the control line (5) is arranged on the inner side of the control line protecting sleeve (4) in a penetrating manner; the distance between one end of the control line protecting sleeve (4) close to the head of the nasogastric tube body (1) and the top end of the head of the nasogastric tube body (1) is a, and a is 1-5 cm; the control line protecting sleeve (4) is of a soft tubular structure.

3. The visible nasogastric tube with controllable bending head as claimed in claim 2, wherein the control wire protecting sleeve (4) is one of a metal spring tube, a plastic hose or a braided composite tube.

4. The visible nasogastric tube with controllable bending head according to claim 1, wherein a camera protecting sleeve (10) is arranged in the gastrointestinal decompression chamber (7), the outer side of the camera protecting sleeve (10) is in contact with the side wall of the gastrointestinal decompression chamber (7), and the camera (8) and the data wire (81) detachably penetrate through the camera protecting sleeve (10); the camera protective sleeve (10) is of a soft tubular structure.

5. The visible nasogastric tube with controllable bending head as claimed in claim 4, wherein the camera protection cover (10) is one of a metal spring tube, a plastic hose or a braided composite tube.

6. The visible nasogastric tube with the bending-controllable head according to claim 1, wherein the nutrition cavity (2) is located in the middle of the nasogastric tube body (1), and the head and the tail of the nasogastric tube body (1) are respectively provided with a nutrition cavity outlet (22) and a nutrition cavity inlet (21) which are communicated with the nutrition cavity (2); the gastrointestinal decompression cavity (7) and the head bending control cavity (3) are respectively positioned at two sides of the nutrition cavity (2); both sides of the nutrition cavity (2) are provided with concave parts (23), and the concave parts (23) on both sides are respectively arranged adjacent to the gastrointestinal decompression cavity (7) and the head bending control cavity (3).

7. The visible nasogastric tube with the controllable bent head as claimed in claim 1, wherein the wire pulling mechanism (6) is provided with a control wire operating part.

8. The visible nasogastric tube with controllable bent head according to claim 1, characterized in that the tail of the gastrointestinal decompression cavity (7) is provided with a negative pressure interface (72); the tail end of the data line (81) penetrates out of the negative pressure interface (72) and is connected with a display screen (9).

9. The nasogastric tube with controllable bending of the head according to claim 1, wherein the outer wall of the nasogastric tube body (1) is coated with a lubricating functional coating (11); the surface of the inner wall of the nutrition cavity (2) is coated with an anti-adhesion coating.