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CN-224220540-U - Plugging cap for metal gas pipe sleeve

CN224220540UCN 224220540 UCN224220540 UCN 224220540UCN-224220540-U

Abstract

The utility model belongs to the technical field of medical appliances, and particularly relates to a plugging cap for a metal tracheal tube, which is suitable for plugging test and respiratory function evaluation of a tracheotomy patient before tube drawing. The plugging cap aims at the problems that the existing plugging tube mode is poor in sealing and unreliable in fixing and easy to fall off, an annular sleeve is arranged, a plugging plug is arranged, a flexible boss is arranged on the inner wall of the annular sleeve, inner and outer double sealing is achieved, anti-slip lines and positioning grooves matched with locking pins can be additionally arranged on the outer wall of the annular sleeve, a guide frustum and a plurality of sealing bulges are additionally arranged on the plugging plug, and a central hole capable of switching full/half plugging tubes is formed in an end plate and the plugging plug. The utility model has firm installation, convenient operation and excellent sealing, is suitable for the conventional metal tracheal cannula, effectively avoids air leakage and falling off, and meets the use requirements of clinical specifications.

Inventors

  • WANG HUILING
  • WANG JING
  • HAN YUJING

Assignees

  • 山东大学齐鲁医院

Dates

Publication Date
20260512
Application Date
20260414

Claims (8)

  1. 1. The utility model provides a shutoff cap for metal tracheal tube, metal tracheal tube includes interior sleeve pipe (6) and outer tube (1), interior sleeve pipe (6) proximal end is equipped with locking cap (7), is equipped with pterygoid lamina (2) and locking pin (4) on outer tube (1), its characterized in that, this shutoff cap (8) include: The annular sleeve (81), wherein the top end of the annular sleeve (81) is fixedly connected with an end plate (82) to form a closed end; The sealing plug (83) is arranged in the annular sleeve (81), the top of the sealing plug (83) is fixedly connected with the bottom surface of the end plate (82), and the sealing plug (83) is matched with the inner hole of the locking cap (7) and forms sealing plug-in fit; At least one flexible boss (812) is convexly arranged on the inner wall of the annular sleeve (81) and is used for forming interference fit or elastic clamping with the outer wall of the locking cap (7).
  2. 2. The plugging cap for a metal-gas tube sleeve according to claim 1, wherein the flexible bosses (812) are circumferentially arranged continuously or at intervals along the inner wall of the annular sleeve (81) to form an annular sealing band or a multi-point compression structure.
  3. 3. The plugging cap for a metal-gas-tube sleeve according to claim 1, wherein the bottom end face of the annular sleeve (81) is provided with a flexible buffer layer (813) circumferentially around the entire circumference.
  4. 4. A plugging cap for a metal-gas tube sleeve according to claim 3, wherein the outer wall of the annular sleeve (81) is provided with a positioning groove (11) matched with the locking pin (4), the positioning groove (11) comprises a vertical groove (111) and a horizontal groove (112) communicated with the vertical groove (111), the vertical groove (111) is formed in the bottom end of the annular sleeve (81) and extends upwards, the groove bottom of the horizontal groove (112) comprises an inclined section (1121) and a horizontal section (1122) connected with the inclined section (1121), the inclined section (1121) is obliquely downwards arranged towards the vertical groove (111), and when the locking pin (4) slides into the horizontal groove (112) through the vertical groove (111), the locking pin (4) is matched with the inclined section (1121) and forms a downward extrusion force.
  5. 5. The plugging cap for a metal gas tube sleeve according to claim 4, wherein the horizontal section (1122) is further provided with a concave groove (1123), and the head of the locking pin (4) is engaged with the groove (1123).
  6. 6. A stopper cap for a metal-gas tube sleeve according to claim 1, characterized in that the outer wall of the annular sleeve (81) is provided with anti-slip threads (811).
  7. 7. The plugging cap for a metal gas tube sleeve according to claim 1, wherein the end plate (82) and the plugging plug (83) are provided with a central hole (831), the central hole (831) is adaptively inserted with a hole plug (12), and the hole plug (12) is connected with the outer wall of the annular sleeve (81) through a connecting belt (13).
  8. 8. The plugging cap for the metal gas tube sleeve according to claim 1, wherein a guiding frustum (833) is arranged at the bottom end of the plugging plug (83), at least two annular sealing bulges (832) are axially arranged on the outer wall of the plugging plug (83) at intervals, and the outer diameter of the annular sealing bulges (832) is larger than the inner diameter of the inner hole of the locking cap (7).

Description

Plugging cap for metal gas pipe sleeve Technical Field The utility model relates to the technical field of medical appliances, in particular to a plugging cap for a metal tracheal tube, which is mainly suitable for a plugging test and respiratory function evaluation of a tracheotomy patient before tube drawing. Background Tracheotomy is a common means for clinical rescue and treatment of critical patients with respiratory obstruction, respiratory failure, etc., and metal tracheal tubes are conventional instruments in such treatment. Before the patient's condition is improved and the tube drawing indication is provided, the autonomous breathing capacity is required to be evaluated through a tube plugging test, so that the safety, the sealing performance and the fixing reliability of the plugging cap directly influence the clinical operation safety. The existing metal tracheal tube is blocked by adopting the modes of gauze wrapping, adhesive tape pasting, simple blocking head and the like, and the adopted blocking tube is various, such as a heparin cap, a disposable infusion set filter joint, a disposable syringe needle cylinder, a disposable latex urinary tube valve and the like, and the materials are convenient to obtain, but the following defects exist: 1. poor sealing effect, easy occurrence of air leakage and incapability of meeting the standard pipe plugging test requirements; 2. the fixing is unreliable, no special locking structure exists, the plugging cap is easy to fall off and shift when a patient coughs and moves, and the potential safety hazard of the airway exists. Aiming at the defects, the prior art lacks a special plugging cap which has reliable sealing, firm fixation, simple and convenient operation, strong adaptability and high comfort level and is well adapted to the structure of the conventional metal tracheal cannula. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides the plugging cap for the metal gas tube sleeve, which realizes tight sealing, reliable fixation, comfortable wearing and convenient operation and meets the safety and the use requirements of clinical plugging tests. In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a plugging cap for metal tracheal tube, metal tracheal tube includes interior sleeve pipe and outer tube, and interior sleeve pipe proximal end is equipped with the locking cap, is equipped with pterygoid lamina and locking pin on the outer tube, and this plugging cap includes: The annular sleeve is fixedly connected with an end plate at the top end to form a closed end, and the bottom end of the annular sleeve is an open end; The sealing plug is arranged in the annular sleeve, the top of the sealing plug is fixedly connected with the bottom surface of the end plate, and the sealing plug is matched with the inner hole of the locking cap and forms a sealing plug-in fit; At least one flexible boss is convexly arranged on the inner wall of the annular sleeve and is used for forming interference fit or elastic clamping with the outer wall of the locking cap. Further, the flexible bosses are continuously arranged or distributed at intervals along the circumferential direction of the inner wall of the annular sleeve, so that an annular sealing belt or a multi-point compression structure is formed. Further, the bottom end face of the annular sleeve is provided with a flexible buffer layer along the whole circumference. Further, the outer wall of the annular sleeve is provided with a positioning groove matched with the locking pin, the positioning groove comprises a vertical groove and a horizontal groove communicated with the vertical groove, the vertical groove is formed in the bottom end of the annular sleeve and extends upwards, the bottom of the horizontal groove comprises an inclined section and a horizontal section connected with the inclined section, the inclined section is obliquely downwards arranged towards the vertical groove, and when the locking pin slides into the horizontal groove through the vertical groove, the locking pin is matched with the inclined section and forms a downward extrusion acting force. Further, the horizontal section is also provided with a concave groove which is concave downwards, and the head part of the locking pin is clamped at the concave groove. Further, the outer wall of the annular sleeve is provided with anti-slip lines. Further, the end plate and the plugging plug are provided with a central hole, the central hole is inserted with a hole plug in an adapting mode, and the hole plug is connected with the outer wall of the annular sleeve through a connecting belt. Further, a guiding frustum is arranged at the bottom end of the sealing plug, at least two annular sealing bulges are arranged on the outer wall of the sealing plug along the axial direction at intervals, and the outer diameter of each annular sealing bulge