CN220801481U

CN220801481U - Nasal feeding tube

Info

Publication number: CN220801481U
Application number: CN202322118355.8U
Authority: CN
Inventors: 袁珍; 吴卫娟; 韩芳红
Original assignee: Jiangsu Institute Of Traditional Chinese Medicine Jiangsu Integrated Traditional Chinese And Western Medicine Hospital
Current assignee: Jiangsu Institute Of Traditional Chinese Medicine Jiangsu Integrated Traditional Chinese And Western Medicine Hospital
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2024-04-19
Anticipated expiration: 2033-08-07

Abstract

The utility model relates to the technical field of medical appliances, in particular to a nasal feeding tube, which comprises a hose and a sheath tube; the hose comprises a liquid outlet end, a balloon, a variable-diameter connecting structure and a lockable assembly joint which are sequentially arranged from a far end to a near end, wherein the liquid outlet end comprises an expandable first side wall and a non-expandable second side wall which is arranged relative to the first side wall, at least one liquid outlet hole is formed in the second side wall, and the diameter of a pipeline of the variable-diameter connecting structure, which is close to one end of the balloon, is smaller than that of a pipeline of the variable-diameter connecting structure, which is close to one end of the lockable assembly joint; the sheath tube comprises a tube body, a second luer connector and a tube head, wherein one end of the tube body is connected with the tube head, and the other end of the tube body is connected with the second luer connector; the sheath tube is detachably connected with the reducing connecting structure through a lockable assembling joint. The utility model has the advantages of preventing reflux, preventing aspiration, preventing catheter blockage, and the like.

Description

Nasal feeding tube

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a nasal feeding tube.

Background

Patients who need to carry out craniocerebral operations, such as patients with subarachnoid hemorrhage, subdural hematoma, intracranial tumor and the like, often take a coma state or have a combined dysphagia after operation, so that the patients cannot eat orally, the bodies of the patients are in a nutrition consumption period due to the conditions of operation wounds, diseases and the like, the requirements for nutrition are high, if the nutrition supply is not in time, the problems of delayed incision healing, infection and the like of the patients can be caused, and the cachexia condition can be caused when serious.

In order to provide nutritional energy to a patient in time, clinical nutritional support is selectable, wherein intravenous nutritional support is an effective treatment means, but long-term intravenous nutrition can increase vascular burden, is easy to cause infection, vasculitis and the like, and long-term non-feeding of the patient can cause the condition that local mucous membrane necrosis and abscission occur in gastrointestinal tracts of the patient, and the risk of systemic infection can be increased due to the local mucous membrane necrosis and abscission of the gastrointestinal tracts, such as peritonitis, bacteremia, pulmonary infection and the like after intestinal flora displacement. The early intestinal nutrition after operation can promote nutrient absorption, improve nutrient conditions and promote incision and disease recovery.

To solve the above problems, a nasal feeding device is generally used for feeding a neurosurgical patient during nursing work, wherein a nasal feeding tube is a commonly used nasal feeding device, and the nasal feeding tube is inserted from a nasal cavity, and the tail end of the nasal feeding tube directly reaches the stomach of the patient, however, various problems still exist in the use of various nasal feeding tubes in the market, such as:

① Reflux: after the tail end of the nasal feeding tube is inserted into the stomach, the original digestive tract environment of a patient is changed due to the contact of the tail end of the nasal feeding tube with the digestive tract wall of the patient, and oral secretion is increased due to the stimulation of the catheter, so that nausea and vomiting occur and reflux occurs; in addition, the stomach of the patient is internally provided with a gastric tube, so that the gastric cardia sphincter of the stomach cannot be completely closed, and reflux phenomenon occurs. Aspiration can result when gastric contents reflux to the oropharynx. Also, improper posture, improper depth of gastric tube placement, unstable fixation, etc. can result in reflux.

② Aspiration: incorrect posture of the patient, too high injection speed of the nutrient solution, gastric tube extraction, gastric motility disorder, gastrointestinal function reduction, retention of gastric contents and the like can cause aspiration.

③ Catheter occlusion: because food residues are easy to adhere to the tube cavity, foods and medicines are incompatible, the nasal feeding tube is not washed in time after nasal feeding, and the like.

In order to solve the problems, the utility model provides a variable diameter anti-reflux nasal feeding tube for neurosurgery nursing, which aims to solve most of clinical problems.

Disclosure of utility model

At present, various nasal feeding devices on the market have the problems of reflux, aspiration, catheter blockage and unplanned tube drawing during use, and the utility model provides a brand-new variable-diameter anti-reflux nasal feeding tube to solve the problems.

A nasal feeding tube, which comprises a hose and a sheath tube; the hose comprises a liquid outlet end, a balloon, a variable-diameter connecting structure and a lockable assembly joint which are sequentially arranged from a far end to a near end, wherein the liquid outlet end comprises an expandable first side wall and a non-expandable second side wall which is arranged relative to the first side wall, at least one liquid outlet hole is formed in the second side wall, and the diameter of a pipeline of the variable-diameter connecting structure, which is close to one end of the balloon, is smaller than that of a pipeline of the variable-diameter connecting structure, which is close to one end of the lockable assembly joint;

the sheath tube comprises a tube body, a second luer connector and a tube head, wherein one end of the tube body is connected with the tube head, and the other end of the tube body is connected with the second luer connector;

The sheath tube is detachably connected with the reducing connecting structure through a lockable assembling joint.

Wherein: the sheath tube has the functions of expanding the hose, increasing the injection flow and preventing food from being blocked. The second luer connector at the proximal end of the sheath tube can be matched with various liquid infusers such as infusion sets, needle cylinders and the like.

In some embodiments of the present utility model, the proximal end of the hose is further provided with a detachable snap-fit securing strap, one end of the detachable snap-fit securing strap being connected to the lockable assembly connector, the other end being provided with a first luer connector; at least one binding band is arranged on the detachable buckle fixing band so as to fix the proximal end of the hose.

In some embodiments of the utility model, the tube is a spring-type telescoping tube or a snap-type telescoping tube.

Wherein: the telescopic sheath can be matched with the stomach tube when liquid is conveyed, and the telescopic structure of the telescopic sheath can be repeatedly lengthened and contracted. When the sheath tube is separated from the hose, the sheath tube is pulled out from the hose, the hose connector is locked, the sheath tube is retracted after cleaning, and the cleaning box is placed, so that the cost of a patient is reduced, and the sheath tube can be matched with a plurality of stomach tubes for use.

In some embodiments of the utility model, the first sidewall includes a hose substrate and an inflatable inflation body spaced apart from and embedded in the hose substrate.

In some embodiments of the present utility model, after the aqueous solution is injected into the liquid outlet end, the first side wall expands to increase the volume of the first side wall and presses the liquid outlet end toward one side of the second side wall, so that the liquid outlet end forms an annular ring, and the liquid outlet hole disposed on the second side wall is contained inside the annular ring.

The loop is formed in a self-assembly mode without other external force control, the head of the loop is straight when the hose is placed, the hose is placed conveniently, the loop is automatically curled after the hose is placed, the loop, the opening direction liquid flow direction and the side hole are designed, buffering during nutrient solution injection can be achieved, the nutrient solution does not directly stimulate the stomach wall, meanwhile, the infusion speed is not reduced, the infusion requirement is guaranteed, and the probability of occurrence of aspiration, reflux and the like caused by stimulation of the stomach wall is reduced. The design of a plurality of infusion ports can reduce the risk of incapacity of injection caused by blockage of the infusion ports. When the ring is not applied with external force, the shape is stable, and when the ring is matched with the sheath tube for use, the ring part can be matched with the sheath tube to straighten, so that the intubation is convenient.

In some embodiments of the utility model, the balloon is a compliant or non-compliant balloon.

After the balloon is inflated, the hose is fixed at the cardiac, namely, the purpose of fixing at the insertion part is realized, so that the unplanned tube drawing is avoided. Meanwhile, the balloon seals the cardia to avoid reflux and prevent aspiration.

In some embodiments of the present utility model, a scale for displaying the insertion depth of the hose is provided on the hose, and the starting point of the scale is the position of the balloon and extends proximally. The purpose of marking the scales is to determine the tail length and ensure that the insertion depth of the hose meets the expectations.

In some embodiments of the utility model, the reducing connection structure is a unitary preform structure. The purpose of the reducing is to reduce the stimulus to the cardia: the small-diameter hose contacted with the cardia can reduce the stimulation to the cardiac sphincter and simultaneously maintain the smooth and supporting functions of liquid delivery, when the hose is placed in the sheath, the diameter of the hose can be expanded, and when the sheath is pulled out, the hose can be restored to the original appearance and size.

In some embodiments of the utility model, the hose lumen is a quadrangle star hose to enhance the strength of the hose.

Wherein: the design of the inner cavity quadrangle star is to keep the supporting performance of the pipeline and the liquid conveying performance of the small pipeline, namely, the hose still has the functions of supporting and transfusion when the hose is not matched with the sheath pipe. When the lumen is blocked due to the fact that food residues adhere to the lumen and food and medicines are incompatible to generate coagulation adhesion or when the nasal feeding tube is not washed in time after nasal feeding, the matched use of the sheath tube can avoid and solve the blocking condition, and the sheath tube and the nasal feeding tube can be washed and dredged.

In some embodiments of the utility model, the outer wall of the sheath is coated with an ultra-slip coating, which can be used with a guidewire when the sheath is placed, to reduce friction between the outer wall of the sheath and the inner wall of the hose when the hose is placed or pulled out.

The detachable buckle fixing belt is provided with a multi-stage fixing buckle, and is clamped in multiple stages according to different sizes, and the clamping rear binding belt is bound to the place such as the back of the ear, the head and the like and is fixed again.

Compared with the prior art, the utility model has the beneficial effects that:

1. prevent reflux: the variable diameter design of hose distal end can keep the size of hose other positions unchanged, only reduces the hose diameter of cardiac department, reduces the stimulation to sphincter, guarantees that liquid is carried smooth and support function. Meanwhile, the gastric segment saccule is designed, so that the cardiac can be plugged, and the reflux is reduced. The scale that increases on the hose can indicate doctor's hose's implantation position and degree of depth, through reasonable implantation position in order to prevent that the backward flow from taking place.

2. Preventing aspiration: through the design of the self-formed ring and hole site at the far end of the hose and the fixing effect of the saccule, the aspiration caused by the reasons of too high injection speed of nutrient solution, large irritation to the stomach, and the detachment of the hose is improved.

3. Preventing catheter blockage: through the combined use of the hose and the sheath tube, the inner cavity of the hose can be expanded and the lumen with adhered substances can be dredged during injection, so that the blockage of the catheter can be prevented.

Drawings

FIG. 1 is a schematic view of a flexible tube in a variable diameter anti-reflux nasal feeding tube according to the present utility model;

FIG. 2 is a cross-sectional view of a flexible tube in a variable diameter anti-reflux nasogastric tube according to the present utility model;

FIG. 3 is a cross-sectional view showing the elongation state of a spring type telescopic sheath in a variable diameter anti-reflux nasal feeding tube according to the present utility model;

FIG. 4 is a cross-sectional view showing a contracted state of a spring-type telescopic sheath in a variable-diameter anti-reflux nasal feeding tube according to the present utility model;

FIG. 5 is a cross-sectional view showing the elongation state of a snap-fit telescopic sheath in a variable diameter anti-reflux nasal feeding tube according to the present utility model;

FIG. 6 is a cross-sectional view showing a contracted state of a snap-in telescopic sheath in a variable diameter anti-reflux nasal feeding tube according to the present utility model;

FIG. 7 shows a non-absorbent straight hose distal end of a variable diameter anti-reflux nasogastric tube according to the present utility model;

FIG. 8 shows the distal end loop of the post-suction hose of the variable diameter anti-reflux nasogastric tube of the present utility model;

Fig. 9 is a cross-sectional view of the liquid outlet end of a variable diameter anti-reflux nasal feeding tube according to the present utility model.

Reference numerals: 1-hose, 11-liquid outlet end, 111-first side wall, 1111-hose substrate, 1112-expansion body, 112-second side wall, 113-liquid outlet hole, 12-balloon, 13-reducing connection structure, 14-lockable assembled joint, 15-detachable buckle fixing belt, 16-first luer joint, 17-bandage, 2-sheath tube, 21-tube body, 22-second luer joint and 23-tube head.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model.

Also, the terms "rear", "opposite", "middle" and "back" are used herein for descriptive purposes only and not for limiting the scope of the utility model, and are intended to be construed as embodying the utility model without materially altering the technical context.

In some embodiments of the present utility model, "opposite" in the "opposite side" refers to the positional relationship between the two side walls taken from any of the dashed lines in fig. 9.

In some embodiments of the utility model, "expandable" means that the volume of the first sidewall becomes significantly greater after exposure to water, and "non-expandable" means that the volume of the second sidewall does not significantly change after exposure to water. As used herein, "expandable" and "non-expandable" are distinguished from expansion in what is known as thermal expansion and cold contraction.

In some embodiments of the utility model, compliance: meaning that the balloon diameter will increase in a proportion with increasing external pressure. Non-compliance: it is meant that the balloon diameter will maintain a value after it has reached that value, regardless of changes in external pressure.

In the technical scheme provided by the utility model, for convenience of description, one end of the nasal feeding tube which is placed in a human body is called a distal end, and the distal end is mainly used for performing operation action on tissues; the end located outside the body is called the proximal end, which is mainly used for the operation of the operator. The distal end of each component is referred to herein as the end proximal to one side of the body and the proximal end of each component is referred to herein as the end proximal to one side of the body, unless otherwise indicated.

As shown in fig. 1-9, a nasal feeding tube comprises a hose 1 and a sheath 2; the hose 1 comprises a liquid outlet end 11, a balloon 12, a reducing connecting structure 13 and a lockable assembly joint 14 which are sequentially arranged from the distal end to the proximal end, wherein the liquid outlet end 11 comprises an expandable first side wall 111, and a non-expandable second side wall 112 which is opposite to the first side wall 111, at least one liquid outlet hole 113 is formed in the second side wall 112, and the diameter of a pipeline of the reducing connecting structure 13, which is close to one end of the balloon 12, is smaller than that of a pipeline of the locking assembly joint 14.

The sheath tube 2 comprises a tube body 21, a second luer connector 22 and a tube head 23, wherein one end of the tube body 21 is connected with the tube head 23, and the other end is connected with the second luer connector 22. The tube head 23 is provided with a liquid outlet.

The diameter of the sheath tube 2 is smaller than that of the hose 1, after the sheath tube 2 is placed into the hose 1, the sheath tube 2 is detachably connected with the reducing connection structure 13 of the hose 1 through the lockable assembled joint 14, for example, a locking mechanism of the lockable assembled joint 14 can be set to be a hoop structure in the prior art, and in order to achieve a better locking effect, a locking position (for example, a proximal end of the tube body 21 close to the second luer joint 22) on the sheath tube 2 can be subjected to hardening treatment.

Wherein: the sheath tube 2 serves to expand the hose 1, increase the injection flow rate, and prevent food blockage. The second luer connector at the proximal end of the sheath tube 2 can be matched with various liquid infusers such as infusion sets, syringes and the like.

The proximal end of the hose 1 is also provided with a detachable buckle fixing belt 15, one end of the detachable buckle fixing belt 15 is connected with the lockable assembly joint 14, and the other end is provided with a first luer joint 16; at least one strap 17 is provided on the detachable snap-on fastening strip 15 to fasten the proximal end of the hose 1.

The tube 21 is a spring-type telescopic tube or a snap-type telescopic tube, as shown in fig. 3-6.

Wherein: the tube body 21 is a spring type telescopic tube body, the telescopic sheath tube can be matched with a stomach tube when liquid is conveyed, and the telescopic structure can be repeatedly lengthened and contracted. When the sheath tube is separated from the hose, the sheath tube is pulled out from the hose, the hose connector is locked, the sheath tube is retracted after cleaning, and the cleaning box is placed, so that the cost of a patient is reduced, and the sheath tube can be matched with a plurality of stomach tubes for use.

Wherein: the tube body 21 is a buckle type telescopic tube body, the telescopic sheath tube can be matched with the stomach tube when liquid is conveyed, and the telescopic structure can be repeatedly lengthened and contracted. When the sheath tube is separated from the hose, the sheath tube is pulled out from the hose, the hose connector is locked, the sheath tube is retracted after cleaning, and the cleaning box is placed, so that the cost of a patient is reduced, and the sheath tube can be matched with a plurality of stomach tubes for use.

The first side wall 111 includes a hose base 1111 and an inflatable body 1112 spaced apart from and embedded in the hose base 1111. For example, the material of the expansion body 1112 may be selected from a water-absorbing resin, and co-extruded with the hose base material to form the side wall 111.

The balloon 12 is either a compliant balloon or a non-compliant balloon, and after inflation of the balloon, the hose will be secured at the cardia, i.e. the purpose of securing at the insertion site is achieved to avoid unintended extubation. Meanwhile, the balloon seals the cardia to avoid reflux and prevent aspiration.

After the aqueous solution is injected into the liquid outlet end 11, the first side wall 111 expands to increase the volume of the first side wall and extrudes the liquid outlet end 11 to one side of the second side wall 112, so that the liquid outlet end 11 forms an annular ring, and the liquid outlet holes 113 arranged on the second side wall 112 are contained in the inner side of the annular ring, so that the nutrient solution flowing out of the liquid outlet holes 113 flows or is sprayed to the second side wall of the opposite liquid outlet end, thereby reducing the flow velocity and avoiding the irritation caused by directly impacting the stomach wall.

A scale for displaying the implantation depth of the hose is arranged on the hose 1, and the starting point of the scale is the position of the balloon 12 and extends proximally. The purpose of marking the scales is to determine the tail length and ensure that the insertion depth of the hose meets the expectations.

The reducing connecting structure 13 is an integral preformed structure, and the reducing can relieve the stimulation of the distal end of the nasal feeding tube to the cardia.

The inner cavity of the hose 1 is a quadrangle star-shaped hose, as shown in fig. 2, so as to enhance the strength of the hose 1.

The outer wall of the sheath tube 2 is coated with an ultra-smooth coating, so that the hose 1 can be conveniently placed. The sheath tube 2 can also be matched with a guide wire for use when being placed into the hose 1, so that the process of placing the sheath tube 2 into the hose 1 is smoother.

In use, the elongate sheath 2 shown in fig. 3 or 5 is first placed into the tube 1 shown in fig. 1 in an in-vitro preassembled manner, with the distal end 11 of the tube in a straightened state, as shown in fig. 7. When the nasal feeding tube is put into a human body, the scale is observed, after the proper placement position is confirmed, the balloon 12 is filled, and then the fixing can be completed by detaching the binding belt 4 on the buckle fixing belt and fastening the head of a patient. The hose 1 is locked to the sheath 2 by means of a lockable assembly joint 14. At the time of injection, the injection is connected through a second luer fitting 23 on the sheath tube 2. The sheath tube 2 has a smooth coating to reduce friction when the hose 1 is inserted or extracted.

During injection, the injection liquid is preferentially absorbed by the expansion body 1112, the expansion body 1112 absorbs water to expand, so that the volume of the first side wall 111 is increased, and the injection liquid is extruded to the second side wall 112 without volume change, and finally the liquid outlet end 11 forms a ring, as shown in fig. 8. When the liquid flows out from the liquid outlet 113, the injection enters the stomach through the liquid outlet 113 at the far end of the hose, and contacts the hose preferentially, and the stimulus to the stomach caused by too high flow speed and the like can be reduced by buffering the injection through the hose and then contacting the stomach.

After the injection is injected, the sheath tube 2 is pulled out, the inner cavity of the hose 1 is in a quadrangle star shape, the section of the hose cavity is reduced, the hose cavity still has supporting property and certain liquid conveying performance, and a small amount of injection can be completed through the first luer connector 16. When the hose 1 is blocked, the sheath tube 2 can be used for dredging and cleaning the hose 2 so as to maintain the smoothness of the lumen. When the sheath tube 2 is pulled out from the hose, the lockable assembly joint 14 is locked, the sheath tube 2 is cleaned, the sheath tube 2 is contracted, and the cleaning box is placed. To reduce patient costs, the sheath 2 may be adapted for use with a plurality of gastric tubes.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. A nasal feeding tube, characterized in that: comprises a hose (1) and a sheath tube (2); the hose (1) comprises a liquid outlet end (11), a balloon (12), a reducing connecting structure (13) and a lockable assembly joint (14) which are sequentially arranged from the far end to the near end, wherein the liquid outlet end (11) comprises an expandable first side wall (111) and a non-expandable second side wall (112) which is arranged relative to the first side wall (111), at least one liquid outlet hole (113) is formed in the second side wall (112), and the diameter of a pipeline of the reducing connecting structure (13) close to one end of the balloon (12) is smaller than that of a pipeline of the other end of the lockable assembly joint (14);

The sheath tube (2) comprises a tube body (21), a second luer connector (22) and a tube head (23), wherein one end of the tube body (21) is connected with the tube head (23), and the other end of the tube body is connected with the second luer connector (22);

The sheath tube (2) is detachably connected with the reducing connecting structure (13) through a lockable assembling joint (14).

2. A nasal feeding tube according to claim 1, characterized in that the proximal end of the hose (1) is further provided with a detachable fastening strap (15), one end of the detachable fastening strap (15) is connected with the lockable assembly joint (14), and the other end is connected with the first luer joint (16);

At least one binding band (17) is arranged on the detachable buckle fixing band (15) so as to fix the proximal end of the hose (1).

3. A nasal feeding tube according to claim 1, characterized in that the tube body (21) is a spring-type telescopic tube body or a snap-type telescopic tube body.

4. A nasal feeding tube according to claim 1, characterized in that the first side wall (111) includes a hose base (1111) and inflatable bodies (1112) which are embedded in the hose base (1111) at intervals.

5. A nasal feeding tube according to claim 1 or 4, characterized in that the first side wall (111) is expanded after the injection of the aqueous solution into the liquid outlet end (11), the first side wall is increased in volume and pressed against one side of the second side wall (112) so that the liquid outlet end (11) forms an annular ring, and the liquid outlet hole (113) provided in the second side wall (112) is included inside the annular ring.

6. A nasal feeding tube according to claim 1, characterized in that the balloon (12) is a compliant or non-compliant balloon.

7. A nasal feeding tube according to claim 1, characterized in that a scale for displaying the depth of insertion of the tube is arranged on the tube (1), and the starting point of the scale is the position of the balloon (12) and extends proximally.

8. A nasal feeding tube according to claim 1, characterized in that the reducing connecting structure (13) is an integral preformed structure.

9. A nasal feeding tube according to claim 1, characterized in that the inner cavity of the hose (1) is a quadrangle star-shaped hose to enhance the supporting strength of the hose (1).

10. A nasal feeding tube according to claim 1, characterized in that the outer wall of the sheath (2) is coated with a super-slip coating to reduce friction between the outer wall of the sheath and the inner wall of the hose when the hose is inserted or withdrawn.