CN211096813U

CN211096813U - Expansible trachea cannula

Info

Publication number: CN211096813U
Application number: CN201921274585.0U
Authority: CN
Inventors: 谢雯
Original assignee: Second Affiliated Hospital to Nanchang University
Current assignee: Second Affiliated Hospital to Nanchang University
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-07-28
Anticipated expiration: 2029-08-07

Abstract

The utility model provides an expandable trachea cannula, which belongs to the technical field of medical instruments for departments such as respiration, anesthesia and first aid. The utility model provides a distensible trachea cannula, includes outer tube, cover bag, instructs the sacculus, the outer tube is the elastic wall pipe, and one end is offered and is the open-ended entry of inclined plane, the outer tube is located to be equipped with the cover bag on the outer wall of the upper portion department of entry, and the cover bag has through the pipe UNICOM and instructs the sacculus, the uncovered and adaptation of the other end of outer tube has adapter, its characterized in that: the inner wall of the outer pipe is attached with an inner pipe, the inner pipe is composed of two semicircular pipes which can be completely butted to form a circular pipe, each semicircular pipe is provided with a positioning head and a positioning hole, the inner wall of the inner pipe is attached with an air bag with a corrugated cross section, the air bag is communicated with a vent pipe, and the other end of the vent pipe is open and is matched with a connector. The utility model discloses can adjust trachea cannula's lumen external diameter.

Description

Expansible trachea cannula

Technical Field

The utility model belongs to the technical field of medical instrument for departments such as breathing, anesthesia and first aid, concretely relates to expandable trachea cannula.

Background

At present, the trachea cannula that general common trachea cannula is formed by high elasticity PVC and medical stainless steel wire inside lining production, and the trachea cannula of this type has the problem of unable regulation external diameter, and the bad consequence that the trachea cannula external diameter is unadjustable probably leads to includes: (1) the visual field is unclear in the process of oral tracheal intubation, the patient is easy to be inserted into the esophagus by mistake, and the patient is easy to be inserted into a false cavity in the intubation process after tracheotomy, so that the patient is suffocated and even dies; (2) the risk of inserting injury to the mucosa of the laryngotracheal tube is high in the intubation process, so that the postoperative throat and trachea of a patient are painful, and postoperative intratracheal granulation and scar are formed, so that tracheal stenosis is easily caused; (3) the mechanical force is easy to be overlarge in the process of oral intubation, so that the cyprocotenoid joint is dislocated; (4) the outer diameter of the tube cavity can not be adjusted in the operation process, so that the operation is unclear in the laryngotracheal operation.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model provides an expansible trachea cannula, which can adjust the outer diameter of the lumen of the trachea cannula.

The technical scheme of the utility model as follows:

expandable trachea cannula, including outer tube, cuff, instruction sacculus, the outer tube is the elastic wall pipe, and one end is offered and is inclined plane open-ended entry, the outer tube is located and is equipped with the cuff on the outer wall of the upper portion department of entry, and the cuff has the instruction sacculus through the pipe UNICOM, the uncovered and adaptation of the other end of outer tube has the adapter, the inner wall facing of outer tube has an inner tube, the inner tube comprises two lamella semicircle pipes that can dock into a pipe completely, is equipped with location head and locating hole on each semicircle pipe respectively, the inner wall facing of inner tube has a cross section to be corrugated gasbag, the intercommunication has a breather pipe on the gasbag, and the uncovered and adaptation of the trachea other end has a joint.

Further, the inner tube is located between the inlet to the adapter of the outer tube.

Further, the outer wall of each semicircular pipe is glued with the inner wall part of the outer pipe along the axial direction of the inner pipe.

Further, the balloon catheter is glued on its side with the inner tube section in the axial direction of the inner tube.

Furthermore, the side surface of the opening end of each semicircular pipe is respectively provided with a positioning hole and a positioning head, and the positioning holes and the positioning heads which are arranged on the same horizontal height of the two semicircular pipes are mutually matched and connected with an elastic filament.

The utility model discloses compare in prior art, its beneficial effect lies in:

the inner tube and the air bag which are formed by the two semicircular tubes are arranged in the outer tube, and the air bag is inflated, so that a gap between the two semicircular tubes is opened, the elastic outer tube is driven to radially expand outwards, and the effect of adjusting the outer tube diameter of the tracheal cannula is realized.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Figure 2 is a schematic cross-sectional view of the outer tube (in an unexpanded state).

Figure 3 is a schematic cross-sectional view of the outer tube (in the expanded state).

Illustration of the drawings: 1 outer tube, 101 inner tube, 1011 alignment head, 1012 alignment holes, 1013 elastic filaments, 102 balloon, 2 cuff, 3 inlet, 4 adaptor, 5 indicator balloon, 6 vent tube.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1, the expansible trachea cannula comprises an outer tube 1, a cuff 2 and an indication balloon 5, wherein the outer tube 1 is an elastic wall tube and can be stretched, one end of the outer tube 1 is provided with an inlet with an inclined plane opening for intubation, the outer wall of the outer tube 1 at the upper part of the inlet 3 is provided with the cuff 2, the cuff 2 is communicated with the indication balloon 5 through a tube, and the other end of the outer tube 1 is open and is adapted with an adapter 4 for connecting a respirator. As shown in fig. 2 or 3, the inner tube 101 is formed by two semicircular tubes that can be completely butted to form a circular tube, the two semicircular tubes are respectively provided with a positioning head 1011 and a positioning hole 1012, the same horizontal height position of the two semicircular tubes is respectively provided with the positioning head 1011 and the positioning hole 1012 that are mutually matched, the positioning head 1011 shown in fig. 2 is a cylindrical head that protrudes outwards, the positioning hole 1012 is a cylindrical hole that is recessed inwards, positioning heads 1011 and positioning holes 1012 of other matched shapes and sizes can also be used, and an elastic filament 1013 is connected between the pair of positioning heads 1011 and the positioning hole 1012. A row of point-like adhesive layers are arranged on the outer wall of the center of each semicircular pipe along the axial direction of the inner pipe 101, part of the outer wall of each semicircular pipe is adhered to the inner wall of the outer pipe 1 through the adhesive layers, and the outer wall of the inner pipe 101 is attached to the inner wall of the outer pipe 1. Similarly, a cross-section corrugated air bag 102 is attached to the inner wall of the inner tube 101 in the same manner, the air bag 102 is connected with a vent pipe 6, the vent pipe 6 is mostly sealed along the wall of the outer tube 1 and then is opened and connected with a connector, and the connector can be connected with an inflating device. During intubation, the whole trachea cannula is as shown in figure 2, the air bag 102 is not inflated, the two semicircular tubes are directly closed, the diameter of the outer tube 1 is the smallest at the moment, the intubation is convenient, when the trachea cannula needs to be expanded, the air bag 2 is inflated through the vent pipe 6, the whole trachea cannula is as shown in figure 3, the two semicircular tubes are separated by the inflated air bag 102, the elastic outer tube 1 is also expanded in a radial expanding manner, and the outer diameter of the trachea cannula is expanded.

Preferably, the inner tube 102 may be defined between the inlet to the adapter 4 of the outer tube 1.

The foregoing merely illustrates preferred embodiments of the present invention, which are described in considerable detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes, modifications and substitutions can be made, which are all within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. Expandable trachea cannula, including outer tube, cuff, instruction sacculus, the outer tube is the elastic wall pipe, and one end has been offered and is inclined plane open-ended entry, the outer tube is located and is equipped with the cuff on the outer wall of the upper portion department of entry, and the cuff has the instruction sacculus through the pipe UNICOM, the other end of outer tube is uncovered and the adaptation has the adapter, its characterized in that: the inner wall of the outer pipe is attached with an inner pipe, the inner pipe is composed of two semicircular pipes which can be completely butted to form a circular pipe, each semicircular pipe is provided with a positioning head and a positioning hole, the inner wall of the inner pipe is attached with an air bag with a corrugated cross section, the air bag is communicated with a vent pipe, and the other end of the vent pipe is open and is matched with a connector.

2. The expandable endotracheal tube of claim 1 wherein: the inner tube is located between the inlet to the adapter of the outer tube.

3. The expandable endotracheal tube of claim 1 wherein: and the outer wall of each semicircular pipe is glued with the inner wall part of the outer pipe along the axial direction of the inner pipe.

4. The expandable endotracheal tube of claim 1 wherein: the balloon inner tube side is glued to the inner tube portion in the inner tube axial direction.

5. The expandable endotracheal tube of claim 1 wherein: the side surface of the opening end of each semi-circular pipe is respectively provided with a positioning hole and a positioning head, and the positioning holes and the positioning heads which are arranged on the same horizontal height of the two semi-circular pipes are mutually matched and connected with an elastic filament.