CN218853274U - Improved guide core of autogenous cutting sleeve - Google Patents

Abstract

An improved guide core of a gas cutting sleeve comprises an end plate buckled on an outer end opening of the gas cutting sleeve, an external connecting pipe is arranged on one side of the end plate, the other side of the end plate is connected with a core pipe, the core pipe is communicated with the external connecting pipe through a center hole of the end plate, the core pipe is matched with a bent pipe of the gas cutting sleeve, the outer diameter of the core pipe is smaller than the inner diameter of the bent pipe, the tail end of the core pipe is connected to an expansion head, the outer end of the expansion head is arranged to be a cone head, and an opening in the outer end of the cone head is connected with a porous thin hose with the length of 4-6 cm, so that the guide core is completely communicated from front to back. When the core tube is used, the core tube is arranged in the bent tube in a penetrating mode, the expansion head is located inside the inner end opening of the autogenous cutting sleeve, and the conical head portion and the porous fine hose extend out of the inner end opening of the autogenous cutting sleeve. The multi-hole thin hose can accurately enter the trachea of a patient from a cut under photopic vision, and then the tracheostomy cannula is guided to enter, so that the tracheostomy cannula is ensured to be inserted into the trachea of the patient; the guide core which is completely penetrated from front to back has the functions of suction and injection, so that the airway of the patient can be communicated with the outside in the intubation process, and the intubation is very difficult and expensive.

Description

Improved guide core of autogenous cutting sleeve

Technical Field

The utility model belongs to the technical field of medical instrument, specifically relate to a core is led in autogenous cutting sheathed tube improvement.

Background

Clinically, tracheotomy creates artificial airways, usually used to relieve airway obstruction, preventive dissection, effective drainage, mechanical ventilation, and the like. Tracheotomy belongs to the first aid operation, usually requires the doctor to complete it quickly, and after cutting the trachea of the patient's neck, the doctor needs to insert the tracheotomy tube into the patient's trachea quickly and accurately.

As shown in figure 1, the main body of the tracheostomy cannula is a plastic elbow, typically 8-10mm in outside diameter, with a straight internal port, which is inserted into the patient's trachea through an incision during surgery. However, because the trachea is deep and the visual field is poor, the tracheostomy cannula is easy to slide into the front space or the side space of the trachea, so that the tissues around the trachea are damaged and bleed, even the pleura is punctured to cause pneumothorax and other adverse effects, and particularly, the intubation is more difficult for patients with neck limitation caused by neck weakness, subcutaneous tissue hypertrophy, trachea collapse or other reasons. More seriously, if the patient needs to be withdrawn and re-intubated, the patient is easy to lack oxygen, and the patient needs to be accurately inserted once because of bleeding around the wound, poorer visual field and more difficult re-insertion.

In order to solve the above technical problems, the existing autogenous cutting casing is usually configured with a guide core, referring to fig. 2, the main body of the guide core is a plastic core plate with strong toughness and flexibility, the front end of the core plate is an end plate, the tail end of the core plate is an expanding head, and the outer end of the expanding head is a cone head. Referring to fig. 3, in use, the core plate is inserted into the elbow, the end plate is buckled on the outer port of the autogenous cutting sleeve, the expansion head is positioned in the inner port of the autogenous cutting sleeve, and the conical head extends out of the inner port of the autogenous cutting sleeve. The core plate is arranged in the bent pipe in a penetrating mode, the stiffness of the bent pipe can be increased, the conical head portion of the core plate can play a guiding role in pipe inserting, and the autogenous cutting sleeve can be conveniently led into the notch. Chinese patent "a disposable tracheotomy tube" (patent No. 2021217264676) and "a guided tracheotomy tube" (patent No. 2021200016005) respectively describes an "inner core assembly" and a "guiding blunt tip guiding core", which have the same guiding and guiding functions as the guiding core shown in fig. 2.

The existing guide core has some defects: 1. the cone head part of the guide core is short, the visual field is blocked during intubation, a doctor cannot observe whether the tracheostomy cannula accurately enters the trachea of a patient through an incision, and the tracheostomy cannula can be inserted only by experience and feeling although the guide of the cone head part is realized, so the technical requirement is high. 2. After the guide core is inserted into the tracheostomy cannula, the tracheostomy cannula is sealed by the guide core, and the artificial airway can not be established for a patient immediately in the intubation process and only after the guide core is pulled out. 3. The guide core is a solid body or is blocked by a core head, and the guide core cannot be connected with a suction apparatus and an injector, so that the guide core has no suction and injection functions, and can not suck bleeding and sputum of a patient in the process of intubation, or can not be administered when the patient suffering from tracheal sensitivity suffers from choking cough.

Disclosure of Invention

The utility model mainly solves the technical problems existing in the prior art and provides an improved guide core of a tracheostomy tube.

The above technical problem of the present invention can be solved by the following technical solutions: the utility model provides a core is led in autogenous cutting sheathed tube improvement, is including detaining the end plate of putting on autogenous cutting sheathed tube outer port, one side of end plate is equipped with outer takeover, the core pipe is connected to the opposite side, the core pipe is through the centre bore and the outer takeover intercommunication of end plate, the core pipe is less than the internal diameter of return bend with autogenous cutting sheathed tube return bend looks adaptation and the external diameter of core pipe, the trailing end connection of core pipe is overhead in expanding, the outer end of head of a cone portion is established to the outer end of expanding, the opening of head of a cone portion outer end is through the centre bore and the core pipe intercommunication of expanding the head, the core pipe is worn to establish in the return bend during use, expanding the head and being located autogenous cutting sheathed tube inner port the inside, the head of a cone portion stretches out in autogenous cutting sheathed tube inner port.

Preferably, a steel wire spring is embedded in the pipe wall of the core pipe, and the steel wire spring can enhance the rigidity of the core pipe so that the core pipe still keeps the pipe hole unobstructed when being bent.

Preferably, the expanded head is cylindrical, and the outer diameter of the expanded head is slightly smaller than the inner diameter of the inner port of the tracheostomy cannula.

Preferably, the opening at the outer end of the conical head is connected with a porous thin hose, the outer diameter of the porous thin hose is smaller than that of the core pipe, the pipe wall of the porous thin hose is provided with a plurality of small holes, and the porous thin hose is communicated with the central hole of the expansion head through the small holes and the port of the small holes.

Preferably, the length of the porous fine hose is 4-6 cm, and the small holes on the pipe wall are arranged at intervals in a staggered mode.

Preferably, the end plate and the outer connecting pipe are formed by integrally injecting medical PVC, the core pipe is formed by injecting medical silica gel with the hardness of 60-70 degrees, the expansion head is formed by injecting medical PVC, and the porous fine hose is formed by injecting medical silica gel with the hardness of 50-60 degrees.

The utility model discloses in, the porous thin hose that awl head portion outer end opening is connected is similar with inhaling among the prior art phlegm pipe front end, 4-6 centimetres length, and is thin and long, can not block the doctor field of vision, can be under the eyesight from the accurate patient's trachea that gets into of incision, guide autogenous cutting sleeve pipe entering afterwards, avoid autogenous cutting sleeve pipe to slide clearance or side clearance before the trachea totally, ensure autogenous cutting sleeve pipe and insert patient's trachea. The front and the back of the guide core are completely communicated, so that the guide core has suction and injection functions, if bleeding or sputum blockage occurs in the intubation process, the external connection tube can be timely connected with a suction apparatus to suck the bleeding and the sputum, and the guide core does not need to be pulled out and then placed into a sputum suction tube to be sucked; if a patient with sensitive trachea suffers from cough, the external connecting tube can be connected with the injector in time for drug delivery, so that the patient can be calmed, and the smooth operation is facilitated. The hollow guide core is arranged in the bent pipe with the outer diameter of 8-10mm in a penetrating way, the strength of each pipe is reasonably designed, the hollow cavity diameter of the guide core can be 2.5-4.0mm, the air passage of a patient can be communicated with the outside in the intubation process, and the intubation is very difficult and expensive. Therefore, the utility model has the characteristics of simple structure, reasonable in design etc.

Drawings

FIG. 1 is a schematic view of a prior art configuration of a tracheostomy cannula;

FIG. 2 is a schematic view of a prior art guide core;

FIG. 3 is a schematic view of a prior art guide core assembled in an autogenous cutting cannula;

FIG. 4 is a schematic view of the present invention;

FIG. 5 is a schematic view of the core tube according to the present invention, partially enlarged;

fig. 6 is a schematic structural view of the assembly of the present invention in a tracheostomy cannula.

In the figure, 1-autogenous cutting sleeve, 2-external port, 3-elbow, 4-internal port, 5-guide core, 6-end plate, 7-core plate, 8-expansion head, 9-cone head, 10-external pipe, 11-core pipe, 12-steel wire spring, 13-porous fine hose and 14-small hole.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): referring to fig. 4, 5 and 6, an improved guide core of a gas cutting sleeve comprises an end plate buckled on an external port of the gas cutting sleeve, an external connection pipe is arranged on one side of the end plate, the other side of the end plate is connected with a core pipe, the core pipe is communicated with the external connection pipe through a central hole of the end plate, the core pipe is matched with a bent pipe of the gas cutting sleeve, the outer diameter of the core pipe is smaller than the inner diameter of the bent pipe, the tail end of the core pipe is connected to an expansion head, the outer end of the expansion head is provided with a cone head, an opening at the outer end of the cone head is communicated with the core pipe through the central hole of the expansion head, the core pipe is arranged in the bent pipe in a penetrating mode when the guide core is used, the expansion head is positioned in an internal port of the gas cutting sleeve, and the cone head extends out of the internal port of the gas cutting sleeve. The steel wire spring is embedded in the pipe wall of the core pipe, and can enhance the rigidity of the core pipe, so that the pipe still keeps the pipe hole smooth when the pipe is bent; the expansion head is cylindrical, and the outer diameter of the expansion head is slightly smaller than the inner diameter of an inner port of the autogenous cutting sleeve; the opening at the outer end of the conical head part is connected with a porous fine hose, the outer diameter of the porous fine hose is smaller than that of the core pipe, the pipe wall of the porous fine hose is provided with a plurality of small holes, and the porous fine hose is communicated with the central hole of the expansion head through the small holes and the port of the porous fine hose; the length of the porous fine hose is 4-6 cm, and a plurality of small holes on the pipe wall are arranged at intervals in a staggered manner; the end plate is managed by the integrative injection moulding of medical PVC with the external, the core pipe is 60-70 medical silica gel injection moulding by hardness, the head that expands is by medical PVC injection moulding, porous thin hose is 50-60 medical silica gel injection moulding by hardness.

The utility model discloses in, the porous thin hose that awl head portion outer end opening is connected is similar with inhaling among the prior art phlegm pipe front end, 4-6 centimetres length, and is thin and long, can not block the doctor field of vision, can be under the eyesight from the accurate patient's trachea that gets into of incision, guide autogenous cutting sleeve pipe entering afterwards, avoid autogenous cutting sleeve pipe to slide clearance or side clearance before the trachea totally, ensure autogenous cutting sleeve pipe and insert patient's trachea. The front and the back of the guide core are completely communicated, so that the guide core has suction and injection functions, if bleeding or sputum blockage occurs in the intubation process, the external connection tube can be timely connected with a suction apparatus to suck the bleeding and the sputum, and the guide core does not need to be pulled out and then placed into a sputum suction tube to be sucked; if a patient with sensitive trachea suffers from cough, the external connecting tube can be connected with the injector in time for drug delivery, so that the patient can be calmed, and the smooth operation is facilitated. The hollow guide core is arranged in the bent pipe with the outer diameter of 8-10mm in a penetrating mode, the strength of each pipe is reasonably designed, the hollow cavity diameter of the guide core can be 2.5-4.0mm, the airway of a patient can be communicated with the outside in the intubation process, and the catheter is very difficult to use and expensive. Therefore, the utility model has the characteristics of simple structure, reasonable in design etc.

Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should be considered as belonging to the protection scope of the present invention.

Claims (8)

1. The utility model provides an improvement of autogenous cutting sheathed tube leads core, including detaining the end plate on the outer port of autogenous cutting sheathed tube, its characterized in that one side of end plate is equipped with outer union pipe, and the core pipe is connected to the opposite side, and the core pipe is via the centre bore and outer union pipe intercommunication of end plate, and the core pipe is lighter than the internal diameter of return bend with the return bend looks adaptation of autogenous cutting sheathed tube and the external diameter of core pipe, and the trailing end connection of core pipe is on expanding the head, and the outer end of expanding the head is established to conical head portion, and the opening of conical head portion outer end is via the centre bore and the core pipe intercommunication of expanding the head, and the core pipe wears to establish in the return bend during use, and the expanding head is located the inner port inside of autogenous cutting sheathed tube, and conical head portion stretches out in the inner port of autogenous cutting sheathed tube.

2. The improved guide core for tracheostomy cannula of claim 1 wherein said core tube has a wire spring embedded in the wall of said core tube.

3. The improved core guide for tracheostomy cannula of claim 1 wherein said enlarged head is cylindrical and has an outer diameter slightly less than the inner diameter of the internal port of the tracheostomy cannula.

4. The improved guide core of autogenous cutting cannula as claimed in claim 1, 2 or 3, wherein the opening at the outer end of the conical head connects with the porous thin flexible tube, the outer diameter of the porous thin flexible tube is smaller than the outer diameter of the core tube, the wall of the porous thin flexible tube is provided with a plurality of small holes, the porous thin flexible tube is connected with the center hole of the expanded head through the small holes and the end ports thereof.

5. The improved guide core of an autogenous cutting cannula according to claim 4, characterized in that the length of the porous thin hose is 4-6 cm, and the small holes on the wall of the hose are arranged at intervals in a staggered manner.

6. The improved guide core of the tracheostomy cannula according to claim 1, 2 or 3, characterized in that the end plate and the external connecting tube are integrally injection molded by medical PVC, the core tube is injection molded by medical silica gel with the hardness of 60-70 degrees, and the expansion head is injection molded by medical PVC.

7. The improved guide core of the autogenous cutting sleeve pipe of claim 4, characterized in that the end plate and the external connecting pipe are integrally injection molded by medical PVC, the core pipe is injection molded by medical silica gel with a hardness of 60-70 °, the expansion head is injection molded by medical PVC, and the porous fine hose is injection molded by medical silica gel with a hardness of 50-60 °.

8. The improved guide core of the tracheostomy cannula according to claim 5, characterized in that the end plate and the external connecting tube are integrally injection molded by medical PVC, the core tube is injection molded by medical silica gel with the hardness of 60-70 degrees, the expanding head is injection molded by medical PVC, and the porous fine hose is injection molded by medical silica gel with the hardness of 50-60 degrees.

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