CN112089941A

CN112089941A - Resistance-reducing tracheal catheter

Info

Publication number: CN112089941A
Application number: CN202011175378.7A
Authority: CN
Inventors: 王震; 陈力勇; 陈娴; 岑媛
Original assignee: Chinese Peoples Liberation Army Army Specialized Medical Center
Current assignee: Chinese Peoples Liberation Army Army Specialized Medical Center
Priority date: 2019-11-12
Filing date: 2020-10-28
Publication date: 2020-12-18
Also published as: CN110787348A

Abstract

The invention discloses a tracheal catheter with drag reduction design, which comprises a flexible catheter body and an air bag system, wherein openings are oppositely arranged at the end parts of two ends of the catheter body, the air bag system covers the catheter body, the catheter body comprises an insertion end and an exposed end, the insertion end and the exposed end are oppositely provided with openings, the insertion end comprises a connecting section and a guide section, the connecting section is positioned between the guide section and the exposed end, a notch is arranged between the guide section and the connecting section, the notch extends from the side wall of the catheter body to the center of the catheter body, the notch enables the guide section to be partially connected with the connecting section, and the guide section can be opposite to the connecting section. The tracheal catheter can effectively reduce the damage of the tracheal cannula to human tissues in the process of putting in and pulling out, thereby reducing the pain of patients and the operation difficulty of medical workers.

Description

Resistance-reducing tracheal catheter

Technical Field

The invention relates to the field of machinery, in particular to a tracheal catheter with a resistance reducing design.

Background

In clinical medicine, a special endotracheal tube is inserted into a trachea through an oral cavity or a nasal cavity and through the larynx, and the endotracheal tube is an important means for ensuring the smoothness and effective ventilation of the respiratory tract of a patient in emergency treatment or perioperative period. In the clinical application of the existing trachea or catheter, due to the technical reasons of operators and the like, in the process of placing the catheter, the mucosa of the airway or the nasal mucosa is damaged in the process of inserting or extracting, mucosa edema, bleeding and even glottic cartilage damage are directly caused, other complications caused by accidental damage are brought to patients, and medical disputes are even caused. Through research and analysis, the shape of the tube tip of the prior tracheal catheter is found to be the main cause of injury. The end part of the existing tracheal catheter is easy to damage mucosa in the process of insertion, and the phenomenon of blockage of the trachea or the catheter in the process of insertion and extraction also occurs, so that part of medical staff can further cause the injury of the mucosa through brute force operation.

Disclosure of Invention

Aiming at the problems, the invention provides the tracheal catheter with the resistance reduction design, and the tracheal catheter can effectively reduce the damage of the tracheal cannula to human tissues in the process of insertion and extraction, thereby reducing the pain of patients and the operation difficulty of medical workers.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a resistance-reducing design endotracheal tube, includes flexible body and air bag system, the tip at body both ends is relative is provided with the opening, air bag system cover in on the body, the body is including inserting the end and exposing the end, it includes linkage segment and direction section to insert the end, the linkage segment is located the direction section with expose between the end, the direction section with a breach has been seted up between the linkage segment, the breach is followed the lateral wall edge of body to the center of body extends, the breach makes the direction section with linkage segment part is connected.

Further, the width of the notch is gradually reduced from the side wall edge of the tube body to the center direction of the tube body.

Further, the notch is arranged in an inclined manner, and the inclined direction of the notch is inclined from the guide section to the insertion end.

Further, the inclination angle of the notch is 60-70 degrees.

Further, the cross-sectional area of the guide section is gradually reduced toward the end of the guide section along the connection section.

Furthermore, the side wall of the guide section is provided with an air hole, and the air hole is communicated with the inner cavity of the guide section.

Further, the gasbag system includes gasbag ring, fixed cover and trachea, outer wall circumference on the linkage segment is provided with an annular groove, the gasbag ring cover is established in the annular groove, just the gasbag ring with the part of the cell wall contact of annular groove is connected, trachea one end with gasbag ring intercommunication, one end is provided with aerating device in addition, aerating device has valve and pressure gauge, fixed cover is established on the body, fixed cover will the trachea compresses tightly on the body.

Further, the annular groove is a C-shaped groove.

Further, a clamping groove is formed in the outer side wall of the pipe body along the length direction of the pipe body, and the air pipe is clamped in the clamping groove.

The tracheal tube at least comprises the following advantages:

the tracheal catheter comprises a catheter body, wherein the catheter body is provided with an insertion end and an exposed end respectively. The inserting end comprises a connecting section and a guiding section, and a gap is formed between the guiding section and the connecting section. The notch connects the guide section to the connecting section, so that the guide section can deflect relative to the connecting section. In the inserting process, the guide section of the inserting end plays a role in guiding, and when the guide section meets angular deviation in the advancing direction, the guide section can deflect relative to the connecting section to a certain degree, so that the advancing resistance is reduced, and the damage of the guide section and even the whole gas tank conduit wall to the mucosa of a human body is reduced.

Drawings

FIG. 1 is a schematic view of an endotracheal tube according to the present embodiment;

FIG. 2 is a schematic view of the guide section of FIG. 1 bent at an angle;

FIG. 3 is a cross-sectional view of the tube of FIG. 1;

FIG. 4 is a schematic view of the balloon ring of FIG. 1 uninflated;

reference numerals: 10-tracheal catheter, 100-tube body, 110-insertion end, 120-exposure, 111-connection section, 112-guide section, 113-notch, 114-annular groove, 115-air hole, 121-clamping groove, 200-air bag system, 210-air bag ring, 220-fixing sleeve, 230-air tank and 240-inflating device.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1 to 3, an endotracheal tube 10 includes a flexible tube body 100 and an air bag system 200. The ends of the tube 100 are provided with openings facing each other. The air bag system 200 is covered on the tube 100. The housing 100 has an insertion end 110 and an exposed end 120. The insertion end 110 includes a connecting section 111 and a guide section 112. The connecting section 111 is located between the guide section 112 and the exposed end 120. A gap 113 is formed between the guiding section 112 and the connecting section 111. The notch 113 extends from the edge of the sidewall of the tube 100 toward the center of the tube 100. The notch 113 partially connects the guide section 112 and the connection section 111. The guide section 112 can be deflected to some extent relative to the connecting section 111. In use, the insertion end 110 is inserted into a human body and the exposed end 120 is exposed to the human body. During the insertion process, the guiding section 112 of the insertion end 110 is used for guiding, and when the advancing direction is deviated at an angle, the guiding section 112 can deflect relative to the connecting section 111 to reduce the advancing resistance, thereby reducing the damage of the guiding section 112 and even the whole gas cylinder conduit wall to the mucosa of the human body.

Specifically, the width of the notch 113 gradually decreases from the sidewall of the tube 100 toward the center of the tube 100. The structure with gradually reduced width can not only ensure that the guide section 112 does not interfere with the connecting section 111 in the bending process, but also ensure the connection strength between the guide section 112 and the connecting section 111, and prevent the risk of fracture and random position change caused by too few connecting parts of the guide section 112. Meanwhile, the notch 113 is obliquely arranged, and the oblique direction of the notch 113 is oblique from the guide section 112 to the connection section 111. The inclined notch 113 with gradually reduced width forms a shape of a shark mouth, and the inclined structure can not only ensure a certain deflection between the guide section 112 and the connecting section 111, but also prevent the guide section 112 and the connecting section 111 from bending due to overlarge deflection, thereby influencing the insertion of the whole tracheal catheter 10. In the present embodiment, the notch 113 is preferably inclined at an angle of 60 to 70 °. The angle can adapt to the bending angle of the tissue in the human body, so that the whole catheter can be well introduced, and the mucosa is prevented from being scratched in the introduction process.

In the present embodiment, the cross-sectional area of the guide section 112 gradually decreases along the connecting section 111 toward the end of the guide section 112 to the opening of the end. This tapered configuration prevents the end edges of the guide section 112 from scratching the mucosa of the human body. The guide section 112 is provided with air holes. The air holes are communicated with the inner cavity of the guide section 112. The air holes are used for air flow to pass through.

Referring also to fig. 4, the airbag system 200 includes an airbag ring 210, a retainer 220, and an air tube 230. An annular groove 114 is circumferentially arranged on the outer wall of the connecting section 111, the airbag ring 210 is sleeved in the annular groove 114, and the airbag ring 210 is connected with the part of the groove wall of the annular groove 114, which is in contact with the groove wall. This connection does not interfere with balloon inflation and prevents balloon ring 210 from falling out of annular groove 114. In the present embodiment, the annular groove 114 is a C-shaped groove. When the air sac is in an uninflated state, the air sac is completely positioned in the annular groove 114, so that the situation that the parent air sac protrudes out of the surface of the tracheal catheter 10, the outer diameter of the air sac part exceeds the outer diameter of the tracheal catheter 10, deviation possibly occurs when the tracheal catheter 10 is placed in the air sac part, the accident that the trachea 230 is embedded in the trachea 230 and cannot be pulled out can be caused in serious cases, and meanwhile, the injury to mucous membranes is reduced. When the air bag is inflated, a part of the air bag is positioned in the annular groove 114, and a part of the air bag is positioned outside the annular groove 114, so that the annular groove 114 with the C-shaped structure can be tightly held on the air bag body, and the air bag is further prevented from falling out of the annular groove 114. Meanwhile, the notch 113 of the annular groove 114 of the C-shaped structure is of an inward-contraction structure, so that the mucosa can be prevented from being scratched by the edge of the notch 113.

The air tube 230 has one end communicating with the balloon ring 210 and the other end provided with an inflator 240. The inflator 240 has a valve and a pressure gauge. During inflation, the inflation amount in the air bag can be determined by observing the pressure gauge, and the deflation operation can be performed through the valve. The fixing sleeve 220 is sleeved on the tube 100, and the air tube 230 is tightly pressed on the tube 100 by the fixing sleeve 220. The outer side wall of the tube 100 is provided with a locking groove 121 along the length direction of the tube 100, and the air tube 230 is locked in the locking groove 121. Thereby preventing the trachea 230 from bulging and scratching the mucosa.

The endotracheal tube 10 has an insertion end 110 and an exposed end 120 of the tube body 100. The insertion end 110 includes a connecting section 111 and a guiding section 112, and a gap 113 is formed between the guiding section 112 and the connecting section 111. The notch 113 partially connects the guide section 112 to the connecting section 111, allowing some deflection of the guide section 112 relative to the connecting section 111. During the insertion process, the guiding section 112 of the insertion end 110 is used for guiding, and when the advancing direction is deviated at an angle, the guiding section 112 can deflect relative to the connecting section 111 to reduce the advancing resistance, thereby reducing the damage of the guiding section 112 and even the whole gas cylinder conduit wall to the mucosa of the human body.

The width of the gap 113 is gradually reduced from the side wall of the pipe body 100 to the center direction of the pipe body 100, and the structure with the gradually reduced width can not only ensure that the guide section 112 does not interfere with the connecting section 111 in the bending process, but also ensure the connecting strength between the guide section 112 and the connecting section 111, and prevent the risk of fracture and random position change due to too few connecting parts of the guide section 112. Meanwhile, the notch 113 is obliquely arranged, and the oblique direction of the notch 113 is oblique from the guide section 112 to the connection section 111. The inclined structure can ensure that a certain deflection occurs between the guide section 112 and the connecting section 111, and can prevent the guide section 112 and the connecting section 111 from being bent due to overlarge deflection, thereby influencing the embedding of the whole tracheal catheter 10.

The airbag ring 210 is sleeved in the annular groove 114, and the airbag ring 210 is connected with the contact part of the groove wall of the annular groove 114, so that the airbag is not hindered from expanding, the airbag ring 210 can be prevented from falling out of the annular groove 114, and the annular groove 114 is a C-shaped groove. When the balloon is in the uninflated state, the balloon is entirely located within the annular groove 114, thereby avoiding the possibility of deviation and unpleasantness in the trachea 230 when the endotracheal tube 10 is inserted, and reducing mucosal damage. While the annular groove 114 of the C-shaped configuration further prevents the bladder from falling out of the annular groove 114. The notch 113 of the annular groove 114 with the C-shaped structure is of an inward contraction structure, and the mucosa can be prevented from being scratched by the edge of the notch 113. The fixing sleeve 220 compresses the air pipe 230 in the clamping groove 121 on the outer wall of the pipe body 100, so that the air pipe 230 can be prevented from moving in a mess, the air pipe 230 can be prevented from protruding, and a mucous membrane can be scratched.

Finally, it should be noted that: while there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a resistance-reducing design endotracheal tube, includes flexible body and air bag system, the tip at body both ends is relative is provided with the opening, air bag system cover in on the body, the body is including inserting the end and exposing the end, a serial communication port, it includes linkage segment and direction section to insert the end, the linkage segment is located the direction section with expose between the end, the direction section with a breach has been seted up between the linkage segment, the breach is followed the lateral wall edge of body to the center of body extends, the breach makes the direction section with linkage segment part is connected.

2. The endotracheal tube according to claim 1, characterized in that the width of the notch decreases gradually from the side wall edges of the tube towards the center of the tube.

3. The endotracheal tube according to claim 1, characterized in that the notch is obliquely arranged in a direction inclined from the guide section towards the insertion end.

4. An endotracheal tube according to claim 3, characterized in that the notch is inclined at an angle of 60-70 °.

5. An endotracheal tube according to claim 3, characterized in that the cross-sectional area of the guide section tapers along the connecting section towards the ends of the guide section.

6. The endotracheal tube according to claim 1, characterized in that the side wall of the guide section is provided with air holes, which communicate with the inner cavity of the guide section.

7. The endotracheal tube according to claim 1, characterized in that the balloon system includes a balloon ring, a fixing sleeve and a trachea, an annular groove is circumferentially formed on an outer wall of the connecting section, the balloon ring is sleeved in the annular groove, the balloon ring is connected with a portion of the annular groove in contact with a wall of the annular groove, one end of the trachea is communicated with the balloon ring, the other end of the trachea is provided with an inflation device, the inflation device has a valve and a pressure gauge, the fixing sleeve is sleeved on the tube body, and the fixing sleeve compresses the trachea on the tube body.

8. The endotracheal tube of claim 7, wherein the annular groove is a C-shaped groove.

9. The endotracheal tube according to claim 7, characterized in that an outer side wall of the tube body is provided with a catching groove along a length direction of the tube body, the trachea being caught in the catching groove.