Directional suction and removal device for throat cavity and subglottic secretions

Abstract

The invention discloses a throat cavity and subglottic secretion directional suction and removal device, and relates to the technical field of medical auxiliary instruments, the throat cavity and subglottic secretion directional suction and removal device comprises a negative pressure tube and a catheter, a plurality of positioning discs are arranged in an inner cavity of the catheter, first through holes and second through holes are formed in the positioning discs, the first through holes are matched with the negative pressure tube, and the second through holes are matched with the negative pressure tube; the four sets of second through holes are matched with the control ropes, one ends of the control ropes are connected with the control assembly, the other ends of the control ropes are connected with the control piece, and the control piece is fixedly connected with the negative pressure pipe. According to the directional suction and removal device for the throat cavity and the subglottic secretions, the angle of the suction opening in the lower end of the negative pressure pipe can be effectively controlled, and the suction precision is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary equipment, and in particular to a directional suction and removal device for throat cavity and subglottic secretions. Background Art

[0002] Catheterization is the most commonly used simple and effective method to relieve airway obstruction and maintain airway patency. It has become an important measure in cardiopulmonary resuscitation and the rescue of critically ill patients with respiratory dysfunction. In recent years, with the development of critical care medicine, mechanical ventilation has been increasingly used in clinical practice. Ventilator-associated pneumonia refers to pneumonia that occurs 48 hours after mechanical ventilation and within 48 hours after extubation. It is an important type of hospital-acquired pneumonia and can easily cause difficulty in weaning from the mechanical ventilation, thereby prolonging hospitalization time and increasing hospitalization costs. In severe cases, it can even threaten the patient's life and lead to death.

[0003] One visible cause of ventilator-associated pneumonia is that the invasive procedures of catheterization and tracheotomy damage the local defense mechanism, and the secretions of upper respiratory tract infection are accidentally inhaled into the lower respiratory tract through the glottis, making it easy for pathogens in the upper respiratory tract to spread to the lower respiratory tract. 1. Catheter or tracheotomy factors. The implementation of invasive operations such as catheters and tracheotomy damages the local defense mechanism, weakens the patient's esophageal clearance function of refluxed gastric contents, inhibits swallowing activities, and easily retains sputum or blood in the throat cavity. The fixed bacteria in the oral cavity grow and multiply rapidly in the sputum. Since the glottis is always in an open state, sputum can easily flow directly into the tracheal lumen through the glottis or glottic gap. The continuous accumulation of sputum will flow into the lower respiratory tract with the folds of the air bag, causing new lung parenchymal infection, which is the most common cause; 2. Nasogastric feeding factors. Since patients cannot eat orally, most of them have a nasogastric tube. The gastric tube stimulates the cardia for a long time, causing incomplete closure of the cardia, and the patient's digestive function is reduced, and many patients have gastric retention. In addition, long-term indwelling of the gastric tube can also cause swallowing dysfunction. Therefore, after the gastric contents reflux, they can also enter the tracheal lumen through the glottis.

[0004] How to effectively clear oropharyngeal secretions and fully drain sputum, especially to clear sputum that has been inhaled into the subglottic tracheal cavity, is an urgent problem to be solved, an important part of nursing work, and the key to preventing the occurrence of VAP. Summary of the invention

[0005] The purpose of the present invention is to solve the defects in the prior art and to propose a directional suction and removal device for throat cavity and subglottic secretions.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A directional suction and removal device for throat cavity and subglottic secretions, comprising a negative pressure tube and a catheter, wherein the inner cavity of the catheter is provided with a plurality of positioning plates, wherein the positioning plates are provided with a first through hole and a second through hole, wherein the first through hole is adapted to the negative pressure tube, and the second through holes are arranged in four groups and adapted to each control rope, wherein one end of the control rope is connected to the control assembly, and the other end is connected to the control plate, and the control plate is fixedly connected to the negative pressure tube.

[0008] Furthermore, the control component includes a control panel, which is provided with a group of mounting holes and four groups of strip-shaped through-holes, an adjusting column is rotatably connected in the strip-shaped through-holes, a connecting rope is wrapped around the adjusting column, the lower end of the connecting rope is detachably connected to the upper end of the control rope, and the mounting hole is adapted to the negative pressure tube.

[0009] Furthermore, the connecting rope is a Y-shaped connecting rope, and an anti-slip sleeve is fixedly connected to the middle position of the adjusting column. The adjusting columns on both sides of the anti-slip sleeve are respectively fixedly connected to the two upper ends of the Y-shaped connecting rope, and the lower end of the Y-shaped connecting rope is detachably connected to the upper end of the control rope.

[0010] Furthermore, an installation groove is provided on the two first side walls of the strip-shaped through-opening, a wing plate is slidably connected in the installation groove, a return spring is provided between the wing plate and the lower end surface of the installation groove, the wing plate is fixedly connected to the lower support block, the lower support block is used to support the adjusting column, and an upper locking block is also provided above the adjusting column, and both ends of the upper locking block are fixedly connected to the two first side walls.

[0011] Furthermore, a first arc-shaped groove is formed on the lower support block and is matched with the outer wall of the adjusting column; a second arc-shaped groove is formed on the upper locking block, a group of locking protrusions are provided on the second arc-shaped groove, and the locking protrusions are located at the top position of the second arc-shaped groove; and a plurality of locking grooves are formed on the adjusting column, and the locking protrusions are matched with the locking grooves.

[0012] Furthermore, two sets of locking knobs are arranged on opposite sides of the control board, and the locking knobs are threadedly connected in the locking holes, and the length direction of the locking holes is perpendicular to the tangent direction of the first through hole.

[0013] Furthermore, the first through hole is located at the middle position of the positioning plate, the second through hole is arranged around the first through hole, and the edge of the first through hole is provided with an arc transition.

[0014] Furthermore, an endoscope cavity is arranged on the negative pressure tube, an eyepiece and a display module are connected to the top of the endoscope cavity, and a lighting assembly is arranged at the bottom.

[0015] Beneficial Effects

[0016] Compared with the prior art, the beneficial effect of the present invention is that: through the configuration of the present invention, a directional suction and removal device for throat cavity and subglottic secretions is provided, which can effectively control the angle of the suction port at the lower end of the negative pressure tube and improve the suction accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0018] Figure 1 This is a schematic diagram of the overall structure of the secretion suction and removal device.

[0019] Figure 2 Schematic diagram of the internal structure of the secretion suction and removal device.

[0020] Figure 3 Schematic diagram of the control structure of the negative pressure tube.

[0021] Figure 4 This is a schematic diagram of the enlarged structure of part A.

[0022] Figure 5 This is a schematic diagram of the enlarged structure of part B.

[0023] Figure 6 It is a structural schematic diagram of the positioning plate.

[0024] Figure 7 Schematic diagram of the structure of the adjustment column.

[0025] Figure 8 , 9 It is a schematic diagram of the structure of the eyepiece and display corresponding to the endoscope cavity.

[0026] In the figure: 1. control panel; 2. upper locking block; 3. adjusting column; 4. locking knob; 5. Y-shaped connecting rope; 6. control rope; 7. control plate; 8. negative pressure tube; 9. catheter; 10. lower support block; 11. return spring; 12. wing plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “circumferential”, “radial”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] Reference Figure 1-Figure 7 A directional suction and removal device for throat and subglottic secretions, comprising a negative pressure tube 8 and a catheter 9. The inner cavity of the catheter 9 is provided with a plurality of positioning plates, and the positioning plates are provided with a first through hole and a second through hole. The first through hole is adapted to the negative pressure tube 8, and the second through hole is four groups adapted to each control rope 6. One end of the control rope 6 is connected to the control component, and the other end is connected to the control plate 7. The control plate 7 is fixedly connected to the negative pressure tube 8.

[0031] When in use, the negative pressure tube 8 is inserted into the catheter 9 from bottom to top, wherein the negative pressure tube 8 cooperates with the first through hole so that the negative pressure tube 8 remains in the middle position of the inner cavity of the catheter 9. When it reaches the top opening, a control component is installed on the negative pressure tube 8, and the top end of the negative pressure tube 8 is connected to an external suction device. The control rope 6 passes through the second through hole at the bottom to the second through holes above in turn, and is connected to the control component when it reaches the top. The control component can adjust the length of each control rope 6 to control the direction of the lower end of the negative pressure tube 8 and to suction secretions at different positions. The operator can also hold the control piece to control the negative pressure tube to move upward or downward.

[0032] Among them, the negative pressure tube is connected to the external negative pressure generator, and the negative pressure tube is also provided with components such as a container and a filter;

[0033] The working principle of the medical negative pressure suction system is to use negative pressure (i.e. pressure lower than atmospheric pressure) to attract liquids and gases such as secretions in the patient's body so that they are transported to a container for storage or discharge.

[0034] The negative pressure generator is the core component of the medical negative pressure suction system. Its main function is to extract the air under external pressure mechanically or electronically to form a negative pressure for the suction tube. The negative pressure tube is made of soft plastic or silicone, and is responsible for transmitting negative pressure to specific parts of the body, such as fistulas, holes or incisions.

[0035] The container is also an important part of the medical negative pressure suction system. Its function is to collect the secretions and excretions produced by the patient. The container adopts a closed design to prevent contamination and cross infection. The container can also be appropriately enlarged or reduced as needed to meet different clinical needs.

[0036] The filter is used to select and filter patient secretions, urine and other substances. The filter is made of high-quality materials and can effectively filter most microorganisms, viruses and other harmful substances to reduce the chance of cross infection.

[0037] In other preferred embodiments, an endoscope cavity is provided on the negative pressure tube, an eyepiece and a display module are connected to the top of the endoscope cavity, and a lighting assembly is provided at the bottom. The endoscope cavity structure is the same as the endoscope principle in the prior art, and has a built-in lighting function, which can observe the retention state of the throat cavity and subglottic secretions, so that the operator can control the negative pressure tube 8.

[0038] The probe at the lower end of the endoscope cavity is electrically connected to an external display, and the display is used to display the image acquired by the probe.

[0039] In other preferred embodiments, the control assembly includes a control panel 1, which is provided with a group of mounting holes and four groups of strip-shaped through-holes, in which an adjusting column 3 is rotatably connected, a connecting rope is wound around the adjusting column 3, the lower end of the connecting rope is detachably connected to the upper end of the control rope 6, and the mounting hole is adapted to the negative pressure tube 8. The control panel 1 is matched with the negative pressure tube 8 through the mounting hole and fixed on the negative pressure tube 8. After the connecting rope is connected to the control rope 6, the operator can rotate the adjusting column 3 to control the length of the connecting rope extending downward, thereby controlling the deflection of the control piece 7.

[0040] Specifically, the connecting rope is a Y-shaped connecting rope 5, an anti-skid sleeve is fixedly connected at the middle position of the adjusting column 3, the adjusting columns 3 on both sides of the anti-skid sleeve are respectively fixedly connected to the two upper ends of the Y-shaped connecting rope 5, and the lower end of the Y-shaped connecting rope 5 is detachably connected to the upper end of the control rope 6. By setting the connecting rope as a Y-shaped structure, the lower end branch of the connecting rope can be kept in the middle position, so that the operation of the control rope 6 is more stable.

[0041] Specifically, the two first side walls of the strip-shaped through-hole are provided with mounting grooves, and a wing plate 12 is slidably connected in the mounting grooves, and a return spring 11 is arranged between the wing plate 12 and the lower end surface of the mounting grooves, and the wing plate 12 is fixedly connected to the lower support block 10, and the lower support block 10 is used to support the adjustment column 3, and an upper locking block 2 is also arranged above the adjustment column 3, and the two ends of the upper locking block 2 are fixedly connected to the two first side walls. Through the setting of this structure, the rotation state of the adjustment column 3 is locked by the clamping effect of the upper locking block 2 and the lower support block 10, and it can no longer rotate, and the angle of the negative pressure tube 8 in the corresponding direction is locked. When the angle of the negative pressure tube 8 needs to be adjusted, the adjustment column 3 is pressed down again, and the spring is in a compressed state after pressing down, and the lower support block 10 moves downward, and the clamping effect of the upper locking block 2 and the lower support block 10 on the adjustment column 3 disappears, so that the adjustment column 3 can rotate in this state, and the connection rope is released or contracted by rotating the adjustment column 3, so that the control piece 7 of the corresponding angle is tilted to achieve the adjustment of the angle of the negative pressure tube 8.

[0042] The lower support block 10 is provided with a first arc-shaped groove, which is matched with the outer wall of the adjusting column 3; the upper locking block 2 is provided with a second arc-shaped groove, and a group of locking protrusions are provided on the second arc-shaped groove, and the locking protrusions are located at the top of the second arc-shaped groove; the adjusting column 3 is provided with a plurality of groups of locking grooves, and the locking protrusions are matched with the locking grooves. Through the setting of this structure, the stability of the adjusting column 3 after locking is improved.

[0043] Specifically, two sets of locking knobs 4 are provided on opposite sides of the control panel 1. The locking knobs 4 are threadedly connected to the locking holes, and the length direction of the locking holes is perpendicular to the tangent direction of the first through hole. After the operator inserts the negative pressure tube 8 into the first through hole, the control panel 1 can be fixed on the negative pressure suction tube by rotating the locking knobs 4.

[0044] In other preferred embodiments, the first through hole is located in the middle of the positioning plate, the second through hole is arranged around the first through hole, and the edge of the first through hole is provided with an arc transition. The arc transition is provided to facilitate the negative pressure tube 8 to enter the first through hole.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A directional suction and removal device for throat cavity and subglottic secretions, characterized in that: It includes a negative pressure tube and a catheter, wherein the inner cavity of the catheter is provided with a plurality of positioning plates, wherein the positioning plates are provided with a first through hole and a second through hole, wherein the first through hole is adapted to the negative pressure tube, and the second through holes are divided into four groups and adapted to each control rope, wherein one end of the control rope is connected to the control assembly, and the other end is connected to the control plate, and the control plate is fixedly connected to the negative pressure tube.

2. A directional suction and removal device for throat cavity and subglottic secretions according to claim 1, characterized in that: The first through hole is located at the middle position of the positioning plate, the second through hole is arranged around the first through hole, and the edge of the first through hole is provided with an arc transition.

3. A directional suction and removal device for throat cavity and subglottic secretions according to claim 1, characterized in that: The control component includes a control panel, which is provided with a group of mounting holes and four groups of strip-shaped through-holes. An adjusting column is rotatably connected in the strip-shaped through-holes. A connecting rope is wound around the adjusting column. The lower end of the connecting rope is detachably connected to the upper end of the control rope. The mounting hole is adapted to the negative pressure tube.

4. A directional suction and removal device for throat cavity and subglottic secretions according to claim 3, characterized in that: The connecting rope is a Y-shaped connecting rope, and an anti-slip sleeve is fixedly connected to the middle position of the adjusting column. The adjusting columns on both sides of the anti-slip sleeve are respectively fixedly connected to the two upper ends of the Y-shaped connecting rope, and the lower end of the Y-shaped connecting rope is detachably connected to the upper end of the control rope.

5. A directional suction and removal device for throat cavity and subglottic secretions according to claim 3, characterized in that: The two first side walls of the strip-shaped through-opening are provided with mounting grooves, and a wing plate is slidably connected in the mounting groove. A return spring is arranged between the wing plate and the lower end surface of the mounting groove, and the wing plate is fixedly connected to a lower support block, and the lower support block is used to support an adjusting column. An upper locking block is also arranged above the adjusting column, and both ends of the upper locking block are fixedly connected to the two first side walls.

6. A directional suction and removal device for throat cavity and subglottic secretions according to claim 5, characterized in that: The lower support block is provided with a first arc-shaped groove, which is matched with the outer wall of the adjusting column; the upper locking block is provided with a second arc-shaped groove, and a group of locking protrusions are arranged on the second arc-shaped groove, and the locking protrusions are located at the top position of the second arc-shaped groove; the adjusting column is provided with several groups of locking grooves, and the locking protrusions are matched with the locking grooves.

7. A directional suction and removal device for throat cavity and subglottic secretions according to claim 3, characterized in that: Two sets of locking knobs are arranged on opposite sides of the control board. The locking knobs are threadedly connected in the locking holes. The length direction of the locking holes is perpendicular to the tangent direction of the first through hole.

8. A directional suction and removal device for throat cavity and subglottic secretions according to claim 1, characterized in that: An endoscope cavity is arranged on the negative pressure tube, an eyepiece and a display module are connected to the top of the endoscope cavity, and a lighting assembly is arranged at the bottom.

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