CN217091711U - A kind of semipermeable membrane T-tube special for laryngotracheal stenosis - Google Patents

Abstract

The utility model provides a narrow dedicated pellicle T type pipe of laryngotracheitis, includes T type pipe body and semi-permeable membrane pipe, T type pipe body includes the expansion section of canned paragraph and coaxial setting and inhales the phlegm section, the length of expansion section is greater than inhales the phlegm section, semi-permeable membrane pipe tightly overlaps in the surface of expansion section, and semi-permeable membrane pipe is close to the one end of canned paragraph and is connected with the injection tubule, the tip of injection tubule sets up the injection sacculus, the one end that the injection sacculus is close to the injection tubule sets up the check valve, and its other end sets up the injection mouth, set up the suction tube that has the soft stopper of rubber on the injection tubule. The utility model discloses when expanding the narrow wound cavity of larynx trachea, can be to the intraductal injection medicine of pellicle, the infiltration that the medicine passes through the pellicle pipe acts on the narrow restoration surface of a wound of larynx trachea, and sustainable performance medicine effect when providing the expansion support suppresses the scar hyperplasia, promotes epithelial healing, improves the cure rate.

Description

A kind of semipermeable membrane T-tube special for laryngotracheal stenosis

technical field

The utility model relates to the technical field of medical devices, in particular to a semipermeable membrane T-shaped tube specially used for laryngotracheal stenosis.

Background technique

Laryngotracheal stenosis is one of the most common acute and severe cases in otorhinolaryngology and respiratory departments. Often due to head and neck tumors, or various critical illnesses requiring tracheotomy, intubation, or laryngotracheal trauma, fibrous scarring may lead to airway obstruction and laryngotracheal stenosis, eventually leading to severe laryngeal obstruction and difficulty breathing. In order to ensure the recovery of the patient's ventilation function and airway patency, the laryngotracheal stenosis scar should be excised, the laryngotracheal structure should be reconstructed, and a T-tube should be placed in the airway repair cavity to dilate the airway to avoid airway restenosis due to airway soft tissue collapse and scar recurrence. . At present, T-tubes have the following problems: T-tubes only act as stents, relying on scar shaping in the later stage, high recurrence rate of restenosis after removal of T-tubes, and inability of local administration during T-tube expansion, inhibiting scar hyperplasia and promoting The epithelium heals; when the T-tube is taken out, the resistance is large, the volume cannot be further reduced, and there is a risk of rupture.

Utility model content

In order to solve the above-mentioned problems, the utility model proposes a special semipermeable membrane T-shaped tube for laryngotracheal stenosis, and the specific technical scheme is:

A semipermeable membrane T-shaped tube for laryngotracheal stenosis, comprising a T-shaped tube body and a semipermeable membrane tube, the T-shaped tube body includes a fixed section, an expansion section and a sputum suction section arranged coaxially, and the expansion section The length of the semi-permeable membrane tube is longer than the suction section, the semi-permeable membrane tube is detachably tightly sleeved on the outer surface of the expansion section, and the end of the semi-permeable membrane tube close to the fixed section is detachably connected with a thin drug injection tube, and the thin drug injection tube is detachably connected. A medicine injection balloon is set at the end of the medicine injection balloon, one end of the medicine injection balloon close to the medicine injection thin tube is set with a one-way valve, and the other end is set with a medicine injection port, and a pump with a rubber soft plug is set on the medicine injection thin tube. straw.

Further, the outer wall of the semi-permeable membrane tube is provided with a plurality of thin drainage grooves along the axis.

Further, the number of the thin drainage grooves is 4-6, and the depth of the thin drainage grooves does not exceed one third of the thickness of the semipermeable membrane tube.

Further, a bendable expansion joint is provided in the upper middle portion of the fixing tube.

Beneficial effects:

The utility model can inject medicine into the semipermeable membrane tube when the laryngotracheal stenosis wound cavity is expanded, and the medicine penetrates the semipermeable membrane tube and acts on the laryngotracheal stenosis to repair the wound surface. Proliferation, promote epithelial healing, and improve the cure rate.

Description of drawings

Fig. 1 is the overall schematic diagram of the utility model.

FIG. 2 is a schematic diagram of the fine drainage groove of the present invention.

In the picture: 1 fixed section, 2 expansion section, 3 suction section, 4 semipermeable membrane tube, 5 small medicine injection tube, 6 medicine injection balloon, 7 medicine injection port, 8 one-way valve, 9 suction tube, 10 Thin drainage groove, 11 expansion joints.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments:

As shown in FIG. 1, a semipermeable membrane T-shaped tube specially used for laryngotracheal stenosis includes a T-shaped tube body and a semipermeable membrane tube 4, and the T-shaped tube body includes a fixed section 1 and a coaxially arranged expansion section 2 Compared with the suction section 3, the length of the expansion section 2 is greater than the suction section 3, and the expansion section 2 can be set with different specifications according to the situation of the patient's reconstruction of the laryngotracheal cavity; the semipermeable membrane tube 4 is detachably tightly sleeved on the On the outer surface of the expansion section 2, one end of the semi-permeable membrane tube 4 close to the fixed section 1 is detachably connected with a thin drug injection tube 5, and the end of the thin drug injection tube 5 is provided with a drug injection balloon 6. One end of the balloon 6 close to the thin medicine injection tube 5 is provided with a one-way valve 8 , and the other end of the balloon 6 is provided with a medicine injection port 7 .

Specifically, the expansion section 2 and the suction section 3 of the T-shaped tube body are arranged in an arc shape to reduce mechanical stimulation to the airway mucosa; the expansion section 2 crosses the upper end of the laryngotracheal stenosis section, and the suction section 3 is fixed to the trachea In the cavity, the fixed section 1 is exposed outside the neck, and can be connected to a negative pressure machine to clear the secretions in the respiratory tract. The medicine can be injected into the medicine injection balloon 6 through the medicine injection port 7, and the medicine injection balloon 6 is pressed, and the pressurized medicine pushes the one-way valve 8, so that the medicine liquid enters the semipermeable membrane tube 4, and the semipermeable membrane is used. The osmotic effect of tube 4, the drug slowly penetrates into the inner wall of the airway through osmotic pressure. At the same time, when the inner cavity of the semipermeable membrane tube 4 needs to be cleaned or the remaining liquid medicine in it needs to be extracted, the operation can be performed from the suction tube 9 .

As shown in FIG. 2 , the outer wall of the semi-permeable membrane tube 4 is provided with a plurality of thin drainage grooves 10 along the axis to increase the contact area of the drug passing through the semi-permeable membrane tube 4 and the narrow wound surface, and to play the drug effect more effectively.

Preferably, the number of the thin drainage grooves 10 is 4-6, and the depth of the thin drainage grooves 10 does not exceed one third of the thickness of the semipermeable membrane tube 4 . According to the clinical use, the depth of the fine drainage groove 10 should be set to 0.2-0.5 mm.

In another embodiment, a bendable expansion joint 11 is provided on the middle and upper part of the fixing tube, which facilitates the bending of the fixing tube and prevents the patient from touching the fixing tube.

When in use, the laryngotrachea is incised, the scar tissue is removed to reconstruct the laryngotracheal cavity, the dilated section 2 is passed over the upper end of the laryngotracheal stenosis section, the suction section 3 is fixed in the tracheal cavity, and the fixed section 1 is exposed outside the neck and fixed. The semipermeable membrane T-shaped tube can avoid displacement; regularly inject drugs into the semipermeable membrane tube 4 through the drug injection port 7, and the drug penetrates into the inner wall of the airway by osmotic pressure, performs local anti-inflammatory, promotes epithelial healing and inhibits scar hyperplasia It can also use the suction pipe 9 to extract the remaining medicinal liquid in the semi-permeable membrane tube 4 or flush the inner cavity of the semi-permeable membrane tube 4 .

Claims (4)

1. a special semipermeable membrane T-shaped tube for laryngotracheal stenosis, is characterized in that: comprise T-shaped tube body and semipermeable membrane tube, and described T-shaped tube body comprises fixed section and coaxially arranged expansion section and suction. The length of the expansion section is longer than the suction section, the semi-permeable membrane tube is detachably tightly sleeved on the outer surface of the expansion section, and the end of the semi-permeable membrane tube close to the fixed section is detachably connected with a thin drug injection tube, The end of the thin medicine injection tube is provided with a medicine injection balloon, one end of the medicine injection balloon close to the medicine injection thin tube is set with a one-way valve, the other end is set with a medicine injection port, and a belt is set on the medicine injection thin tube. Suction tube with rubber stopper. 2 . The semi-permeable membrane T-tube specially used for laryngotracheal stenosis according to claim 1 , wherein the outer wall of the semi-permeable membrane tube is provided with a plurality of fine drainage grooves along the axis. 3 . 3 . The semipermeable membrane T-tube specially used for laryngotracheal stenosis according to claim 2 , wherein the number of the thin drainage grooves is 4 to 6, and the depth of the thin drainage grooves does not exceed the semipermeable membrane. 4 . one third of the tube thickness. 4 . The semipermeable membrane T-tube for laryngotracheal stenosis according to claim 1 , wherein a bendable expansion joint is arranged on the middle and upper part of the fixed section. 5 .

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