Search

CN-121606790-B - T-shaped tube set capable of being accurately and firmly connected for treating throat and tracheal stenosis of children

CN121606790BCN 121606790 BCN121606790 BCN 121606790BCN-121606790-B

Abstract

The invention relates to the technical field of medical instruments, in particular to a T-shaped tube kit capable of being accurately and firmly connected for treating throat and tracheal stenosis of children, which comprises a T-shaped tube body and an adapter component, wherein the adapter component is detachably connected with the T-shaped tube body through a positioning component, the T-shaped tube body consists of a horizontal section, an upper branch and a lower branch, the adapter component comprises an adapter tube and an adapter tube, the positioning component consists of an air bag rod and an air bag arranged at one end of the air bag rod, the upper branch can be positioned in the central axis direction of the upper branch through expansion of the air bag, and the adapter tube can be accurately butted with the upper branch along the axial direction of the air bag.

Inventors

  • LONG TING
  • WANG GUIXIANG
  • LIU YUWEI
  • NI XIN
  • WANG SHENGCAI
  • LI XIAODAN
  • LI YANZHEN
  • ZHANG FENGZHEN
  • LI HONGBIN
  • WANG HUA
  • ZHAO JING

Assignees

  • 首都医科大学附属北京儿童医院

Dates

Publication Date
20260512
Application Date
20251224

Claims (9)

  1. 1. The T-shaped pipe suite for the treatment of the throat and tracheal stenosis of the children, which is capable of being accurately and firmly connected, is characterized by comprising a T-shaped pipe body (1) and an adapter component (2), wherein the adapter component (2) is detachably connected with the T-shaped pipe body (1) through a positioning component (3); The T-shaped pipe body (1) consists of a horizontal section (11), an upper branch (12) and a lower branch (13), the switching component (2) comprises a switching pipe (21) and a switching pipe (22), the positioning component (3) consists of an air bag rod (31) and an air bag (32) arranged at one end of the air bag rod (31), the air bag (32) expands in the upper branch (12) to position the central axis direction of the upper branch (12), and the switching pipe (22) can be in butt joint with the upper branch (12) along the axial direction of the air bag (32); The lower end and the upper end of the air bag (32) have different expansion coefficients, when the air bag (32) is inflated and expanded, the air bag (32) is in an uneven cylindrical shape with a narrow upper part and a wide lower part, the wide lower end of the air bag can be clamped in the pipe wall of the upper branch (12), the narrow tip at the upper end of the air bag is exposed out of the upper branch (12), and at the moment, the central axis of the air bag (32) coincides with the central axis of the upper branch (12).
  2. 2. The T-shaped pipe sleeve according to claim 1, wherein an external thread (121) is arranged on the outer wall of the upper branch (12), a screwing groove (24) is formed in the outer side of a connecting part of the adapter pipe (21) and the adapter pipe (22), a fastening ring (23) is rotatably and slidingly arranged on the side wall of the screwing groove (24), threads matched with the external thread (121) are arranged inside the fastening ring (23), and the inner diameter of the fastening ring (23) is matched with the outer diameter of the upper branch (12).
  3. 3. The tee fitting according to claim 1, wherein the balloon stem (31) is centrally provided with a vent hole (311), the vent hole (311) being adapted to inflate or deflate the balloon (32) to achieve its inflated, upper narrow, lower wide configuration or constriction.
  4. 4. The tee fitting according to claim 1, wherein the balloon (32) is further provided with a marker wire (35) at its periphery.
  5. 5. The T-shaped pipe sleeve according to claim 1, wherein a beam receiving seat (312) is fixedly arranged on the periphery of the air bag rod (31) at the bottom end of the air bag (32), a plurality of beam receiving grooves (313) are formed in the periphery of the beam receiving seat (312), fixing holes (314) are formed in the periphery of the air bag rod (31) on the bottom ring of the beam receiving grooves (313), a fixing ring (331) is arranged in the fixing holes (314), a plurality of beam receiving strips (33) are serially connected to the fixing ring (331), the beam receiving strips (33) can rotate on the axis section of the air bag rod (31) by taking the center of the cross section of the fixing ring (331) as a rotation center, the number of the beam receiving strips (33) is the same as that of the beam receiving grooves (313), and the diameter of the beam receiving strips (33) is matched with the inner diameter of the beam receiving grooves (313).
  6. 6. The tee fitting according to claim 5, characterized in that a converging ring (34) is also provided around the outer circumference of the converging strip (33) and the converging seat (312).
  7. 7. The tee fitting according to claim 6, wherein the bottom of the inner wall of the upper leg (12) meeting the horizontal segment (11) is provided with a cambered surface ring (122).
  8. 8. The tee fitting according to claim 2, characterized in that the outer wall of the horizontal section (11) of the tee body (1) is provided with the external thread (121) matching the fastening ring (23).
  9. 9. The tee fitting according to claim 1, wherein the outer wall of the adapter tube (22) is provided with friction corrugations.

Description

T-shaped tube set capable of being accurately and firmly connected for treating throat and tracheal stenosis of children Technical Field The invention relates to the field of medical instruments, in particular to a T-shaped tube set capable of being accurately and firmly connected for treating throat and tracheal stenosis of children. Background Laryngeal tracheal stenosis refers to a narrowing of the laryngeal lumen resulting from defects in the laryngeal and tracheal tissues or scar tissue, leading to dysfunction in breathing and sounding. Particularly, the patients with children are extremely easy to cause dyspnea, and the dyspnea is one of the most common reasons for the airway obstruction of the children. Laryngeal tracheoplasty is the most important treatment method for treating laryngeal tracheal stenosis of children, and the core purpose of the operation is to recover the airway patency and improve the respiratory function. The operation needs to make an individual treatment scheme according to the age, the stenosis part and the degree of the infant, and reconstruct the tracheal passage which accords with the physiological function by cutting off the stenosis tissue and repairing the defect structure. The T-shaped tube is placed in the airway, is the most important link for guaranteeing the operation effect of laryngeal tracheoplasty, and is the most critical step of successful operation. In the operation, proper trachea supporting pipes, namely T-shaped pipes of different types, are needed to be placed in the lumen, and the T-shaped pipes are reserved for 6 months to 1 year after the operation. The existing T-shaped pipe is made of medical silicone materials and is in a T-shaped structure, the vertical section is placed into the rebuilt laryngotracheal cavity, and the horizontal section is led out of the body through a neck skin incision. After the T-shaped tube is placed in the open laryngeal trachea reconstruction operation, various operation operations such as airway repair, tissue suturing and the like are needed in the cervical operation cavity, and the operation needs a plurality of hours, so that long-time effective breathing support of the breathing machine is needed. However, the two ends of the vertical section of the existing T-shaped pipe are open, so that a closed airflow loop cannot be realized, and therefore, closed positive pressure ventilation in operation cannot be realized. At present, a breathing machine is temporarily connected through the outer opening of the horizontal section of the T pipe clinically, but the connection mode is unstable and easy to fall off, and the aseptic principle of open operation of the neck is violated. In view of the foregoing, there is a need for a complete T-tube kit device for achieving an oral "T-tube over-anesthesia cannula-ventilator" airway closed-loop connection in open laryngeal tracheoplasty in order to achieve reliable mechanical ventilation in the larynx. However, at present, there is no mature connecting device for supporting the T-shaped tube upper branch and the anesthetic breathing tube, namely, the T-shaped tube cannot be firmly connected with the anesthetic breathing machine after being placed in the operation, and the port of the T-shaped tube upper branch is positioned in the laryngeal chamber, a supporting laryngoscope is required to be placed to the throat through the mouth so as to be fully exposed, and no professional instrument is available at present to accurately place the anesthetic breathing tube device into the cavity of the T-shaped tube upper branch, so that effective airtight ventilation cannot be realized, and safe and effective life support cannot be ensured in the operation. Based on the above-mentioned prior art dilemma, there is a need in clinic for a tee-tube kit for the treatment of children's laryngeal tracheal stenosis that can be precisely and firmly connected to an anesthetic breathing tube. Disclosure of Invention The invention aims to provide a T-shaped tube for treating throat and tracheal stenosis of children, which can be accurately and firmly connected, so as to solve the problems in the prior art. In order to achieve the above purpose, the present invention provides the following technical solutions: a T-shaped tube set capable of being accurately and firmly connected for treating throat and tracheal stenosis of children comprises a T-shaped tube body and an adapter component, wherein the adapter component is detachably connected with the T-shaped tube body through a positioning component; The T-shaped pipe body consists of a horizontal section, an upper branch and a lower branch, the switching assembly comprises a switching pipe and a switching pipe, the positioning assembly consists of an air bag rod and an air bag arranged at one end of the air bag rod, the air bag expands in the upper branch to position the central axis direction of the upper branch, and the switching pipe can be in butt joint wit