A three-way tube for bronchoalveolar lavage

Abstract

This invention relates to the field of medical device technology, specifically disclosing a three-way tube for bronchoalveolar lavage, comprising: a main bronchus tube; and two branch tubes, positioned above the main bronchus tube. Medical personnel can operate a switching button to activate two switching toothed plates that adjust the ball valves, causing the ball valves to rotate 180 degrees. This facilitates switching the branch tube channels, allowing for rapid response to switching commands and immediate disconnection of the branch tube connected to the irrigation fluid. The ball valves prevent backflow of the irrigation fluid during switching, avoiding contamination of unused irrigation fluid with previously contaminated fluid. Simultaneously, after the irrigation fluid clears sputum, bacteria, and other harmful substances from the patient's lungs, the other branch tube is immediately switched to recover the irrigation fluid, improving the recovery rate of contaminated irrigation fluid, effectively enhancing surgical outcomes, and reducing manual operation by medical personnel, thus allowing more time for surgical procedures.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically a three-way tube for bronchoalveolar lavage. Background Technology

[0002] Bronchoalveolar lavage under general anesthesia is a technique in which physiological saline is injected into the bronchi and alveoli under general anesthesia and the lavage fluid is collected to obtain lower respiratory tract specimens for diagnosis and treatment. Bronchoalveolar lavage involves repeatedly injecting physiological saline into the bronchi and alveoli using a bronchoscope and then immediately aspirating it to collect the effective fluid from the alveolar surface. The obtained specimens are used to examine pathogenic microorganisms, immune cells, inflammatory cells, and cell classification and counting.

[0003] During surgery, bronchoscopic lavage under general anesthesia is a crucial step used to clear the airway, ensure a clear surgical field, and help reduce postoperative complications. Traditional bronchoscopic lavage devices suffer from complex operation and are prone to contamination of the lavage fluid, limiting their clinical application.

[0004] During bronchoscopic lavage under general anesthesia, two branches of a three-way tube are needed to lavage with normal saline and to aspirate the cleaned normal saline and waste under negative pressure. However, currently, the corresponding branches are clamped with hemostatic forceps, which is time-consuming and labor-intensive, and requires at least two people to work together to complete the lavage. Therefore, we propose a three-way tube for bronchoalveolar lavage. Summary of the Invention

[0005] The purpose of this invention is to provide a three-way stopcock for bronchoalveolar lavage, in order to solve the problem mentioned in the background art that the current method of clamping the corresponding branch with hemostatic forceps is time-consuming and laborious, and requires at least two people to cooperate in completing the lavage.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a three-way tube for bronchoalveolar lavage, comprising: a main bronchus tube;

[0007] Also includes:

[0008] There are two branch tubes, located above the main branch tube. The two branch tubes are used to inject physiological saline into the bronchoalveolar cavity and to collect the lavage fluid.

[0009] Connecting pipe, which is set at the top of the main branch pipe, is used to connect the main branch pipe and the two branch pipes;

[0010] A switching assembly is located inside the connecting pipe and is used to switch between two branch pipes. The switching assembly includes a ball valve, which is located inside the connecting pipe. The outer wall size of the ball valve matches the inner size of the branch pipe. A fixed ring is rotatably connected to the outer wall of the ball valve and is fixedly connected to the connecting pipe. A movable groove is opened on the inner wall of the fixed ring, and a sliding block is slidably connected inside the movable groove. The sliding block is fixedly connected to the ball valve, and the bottom end of the sliding block passes through the fixed ring. A switching toothed ring is fixedly connected to the bottom end of the sliding block.

[0011] The regulating pipe is located at the bottom of the two branch pipes and is used to connect the two branch pipes.

[0012] The central axis of the branch pipe is at a 45° angle to the central axis of the main branch pipe, and the branch pipe is connected to the main branch pipe through a connecting pipe.

[0013] The ball valve has a flow divider groove inside, and the shape of the flow divider groove is set at 45°. The flow divider groove corresponds to the outlet of the branch pipe.

[0014] The switching gear ring is rotatably connected to the connecting pipe, and switching gear plates are meshed on both sides of the switching gear ring. The switching gear plates are slidably connected to the connecting pipe.

[0015] The connecting pipe has a fixed base fixedly connected to its outer wall, a switching button rotatably connected inside the fixed base, a fixed cylinder fixedly connected to the bottom end of the switching button, a movable spring inside the fixed cylinder, and a sliding rod fixedly connected to the bottom end of the movable spring.

[0016] The sliding rod is slidably connected to the fixed cylinder. A pressing spring plate is provided at the bottom end of the sliding rod. The middle end of the pressing spring plate is rotatably connected to the connecting pipe. Fixed plates are fixedly connected to both ends of the pressing spring plate.

[0017] The inner walls of both fixed plates are provided with adjustment grooves, and adjustment shafts are slidably connected inside the adjustment grooves. The adjustment shafts are fixedly connected to the switching gear plate.

[0018] The outer wall of the regulating tube is rotatably connected to an regulating ring. The regulating ring has multiple first positioning grooves inside. The multiple first positioning grooves are all inclined. Each first positioning groove is deeper at the rear end and shallower at the front end. Each first positioning groove has a positioning ball inside.

[0019] The positioning ball has grooves at both ends, and a positioning rod is slidably connected inside the grooves. A return spring is fixedly connected to the bottom end of the positioning rod, and the return spring is fixedly connected to the adjusting tube. The top end of the positioning rod extends into the adjusting tube, and multiple sliding grooves are formed on the inner wall of the adjusting tube. The sliding grooves are slidably connected to the positioning rod.

[0020] The outer wall of the branch pipe matches the internal dimensions of the regulating pipe. A sealing strip is fixedly connected to the outer wall of the branch pipe. Multiple second positioning grooves are opened on the outer wall of the sealing strip. The internal dimensions of the second positioning grooves match the external dimensions of the positioning ball.

[0021] The present invention has at least the following beneficial effects:

[0022] Medical staff can operate the switching button to adjust the setting of the ball valve by adjusting the two switching tooth plates, allowing the ball valve to rotate 180 degrees. This facilitates the switching of branch pipe channels, enabling rapid response to switching commands and immediate disconnection of the branch pipe connected to the irrigation fluid. The ball valve design prevents backflow of irrigation fluid during the switching process, avoiding contamination of unused irrigation fluid with contaminated fluid. Simultaneously, after the irrigation fluid clears sputum, bacteria, and other harmful substances from the patient's lungs, the other branch pipe is immediately switched to recover the irrigation fluid, improving the recovery rate of contaminated irrigation fluid, effectively enhancing surgical outcomes, and reducing manual operation by medical staff, thus gaining more time for surgical procedures. Attached Figure Description

[0023] Figure 1 This is a front view structural diagram of the present invention;

[0024] Figure 2 This is a cross-sectional view of the fixing base of the present invention;

[0025] Figure 3 This is a schematic diagram of the switching component structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the ball valve structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the cross-sectional structure of the regulating tube of the present invention;

[0028] Figure 6 This is a schematic diagram of the connection structure between the regulating tube and the regulating ring of the present invention;

[0029] Figure 7 This is a schematic diagram of the regulating ring structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the positioning ball structure of the present invention;

[0031] Figure 9 This is a schematic diagram of the branch pipe structure of the present invention.

[0032] In the diagram: 001, main branch pipe; 002, branch pipe; 003, connecting pipe; 004, switching assembly; 005, adjusting pipe; 310, fixed seat; 320, switching button; 330, fixed cylinder; 340, movable spring; 350, sliding rod; 360, pressing spring plate; 370, fixed plate; 371, adjusting groove; 372, adjusting shaft; 401, ball valve; 402, fixed ring; 403, movable groove; 404, sliding block; 405, switching toothed ring; 410, diversion groove; 420, switching toothed plate; 510, adjusting ring; 520, first positioning groove; 530, positioning ball; 540, sliding groove; 550, positioning rod; 551, sliding groove; 560, return spring; 570, sealing strip; 580, second positioning groove. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1

[0035] Please see Figures 1 to 8 The present invention provides a technical solution: a three-way tube for bronchoalveolar lavage, comprising: a main bronchus tube 001;

[0036] Also includes:

[0037] Branch tube 002, there are two branch tubes 002, the two branch tubes 002 are located above the main branch tube 001, the two branch tubes 002 are used to inject physiological saline into the bronchoalveolar and to recover the lavage fluid respectively.

[0038] Connecting pipe 003 is located at the top of main branch pipe 001 and is used to connect main branch pipe 001 and two branch pipes 002.

[0039] A switching component 004 is disposed inside the connecting pipe 003. The switching component 004 is used to switch between two branch pipes 002. The switching component 004 includes a ball valve 401, which is disposed inside the connecting pipe 003. The outer wall size of the ball valve 401 matches the inner size of the branch pipe 002. A fixing ring 402 is rotatably connected to the outer wall of the ball valve 401. The fixing ring 402 is fixedly connected to the connecting pipe 003. A movable groove 403 is opened on the inner wall of the fixing ring 402. A sliding block 404 is slidably connected inside the movable groove 403. The sliding block 404 is fixedly connected to the ball valve 401. The bottom end of the sliding block 404 passes through the fixing ring 402. A switching toothed ring 405 is fixedly connected to the bottom end of the sliding block 404.

[0040] Adjustment pipe 005 is located at the bottom of the two branch pipes 002 and is used to connect the two branch pipes 002.

[0041] One branch tube 002 is used for injecting the irrigation fluid saline, and the other branch tube 002 is used for negative pressure recovery of the irrigation fluid and waste after cleaning. The main branch tube 001 is inserted into the patient's mouth to perform the irrigation operation. During the operation, the branch tube 002 connected to the irrigation fluid injects the irrigation fluid into the patient. After clearing the sputum, bacteria and other harmful substances from the patient's lungs, the irrigation fluid needs to be obtained immediately by appropriate negative pressure suction. The medical staff needs to press the switch button 320 immediately to switch the branch tube 002 connected to the irrigation fluid to the branch tube 002 connected to the negative pressure fan.

[0042] When the switching button 320 is rotated to one side under external pressure, the sliding rod 350 inside the switching button 320 reacts directly to the pressing spring plate 360 ​​under the elastic force of the movable spring 340. The pressing spring plate 360 ​​is rapidly rotated inside the connecting pipe 003 under the reaction force. At the same time, the rotation direction of the pressing spring plate 360 ​​is opposite to the rotation direction of the switching button 320. The fixing plates 370 on both sides of the pressing spring plate 360 ​​slide synchronously inside the connecting pipe 003, driving the two switching tooth plates 420 to slide synchronously in opposite directions. Under the action of the switching tooth plates 420 and the switching tooth ring 405, the ball valve 401 rotates 180 degrees in the opposite direction, thereby immediately cutting off the branch pipe 002 connected to the irrigation liquid. The branch pipe 002 connected to the negative pressure fan can then recover the irrigation liquid.

[0043] The central axis of branch pipe 002 is at a 45° angle to the central axis of main branch pipe 001, and branch pipe 002 is connected to main branch pipe 001 through connecting pipe 003.

[0044] The ball valve 401 has a flow divider 410 inside, and the shape of the flow divider 410 is set at 45°. The flow divider 410 corresponds to the outlet of the branch pipe 002.

[0045] The 45° diversion groove 410 corresponds exactly to the two branch pipes 002, allowing the irrigation liquid in the branch pipes 002 to smoothly pass through the diversion groove 410 of the ball valve 401 and enter the main branch pipe 001.

[0046] The switching gear ring 405 is rotatably connected to the connecting pipe 003. The two sides of the switching gear ring 405 are meshed with switching gear plates 420, and the switching gear plates 420 are slidably connected to the connecting pipe 003.

[0047] A fixed base 310 is fixedly connected to the outer wall of the connecting pipe 003. A switching button 320 is rotatably connected inside the fixed base 310. A fixed cylinder 330 is fixedly connected to the bottom end of the switching button 320. A movable spring 340 is installed inside the fixed cylinder 330. A sliding rod 350 is fixedly connected to the bottom end of the movable spring 340.

[0048] When medical staff press the switching button 320, the sliding rod 350 slides synchronously on the pressing spring plate 360. The pressing spring plate 360 ​​is made of elastic metal. When subjected to force, it causes the fixing plate 370 to immediately lift up under its own elastic properties, so as to immediately respond to the command and quickly switch the branch tube 002 passage.

[0049] The sliding rod 350 is slidably connected to the fixed cylinder 330. The bottom end of the sliding rod 350 is provided with a pressing spring plate 360. The middle end of the pressing spring plate 360 ​​is rotatably connected to the connecting pipe 003. Both ends of the pressing spring plate 360 ​​are fixedly connected with a fixing plate 370.

[0050] The inner walls of both fixed plates 370 are provided with adjustment grooves 371, and adjustment shafts 372 are slidably connected inside the adjustment grooves 371. The adjustment shafts 372 are fixedly connected to the switching toothed plate 420.

[0051] When the pressing spring plate 360 ​​moves the two fixed plates 370, the switching tooth plate 420, which is movably connected to the fixed plates 370 via the adjusting shaft 372, slides inside the connecting pipe 003. The switching tooth ring 405, which is engaged with the switching tooth plate 420, rotates rapidly by 180 degrees to adjust the position of the ball valve 401 and switch the passage of the branch pipe 002.

[0052] Example 2

[0053] like Figure 8-9 In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that the outer wall of the regulating tube 005 is rotatably connected to an regulating ring 510. The regulating ring 510 has multiple first positioning grooves 520 inside. The multiple first positioning grooves 520 are all inclined. Each first positioning groove 520 is deeper at the rear end and shallower at the front end. Each first positioning groove 520 has a positioning ball 530 inside.

[0054] Both ends of the positioning ball 530 are provided with sliding grooves 540. A positioning rod 550 is slidably connected inside the sliding groove 540. A return spring 560 is fixedly connected to the bottom end of the positioning rod 550. The return spring 560 is fixedly connected to the adjusting tube 005. The top end of the positioning rod 550 extends into the adjusting tube 005. Multiple sliding grooves 551 are provided on the inner wall of the adjusting tube 005. The sliding grooves 551 are slidably connected to the positioning rod 550.

[0055] After use, medical staff can remove the two branch tubes 002 from the adjusting tube 005 and rotate the adjusting ring 510. Since the first positioning groove 520 is shallower at the front and deeper at the back, the deeper position of the first positioning groove 520 is aligned with the positioning ball 530, so the adjusting ring 510 is no longer against the positioning ball 530. At this time, the medical staff can directly pull the branch tube 002 out of the adjusting tube 005. The positioning ball 530 is pressed into the first positioning groove 520 and no longer fixes the branch tube 002. When the medical staff releases the force on the adjusting ring 510, the return spring 560 supports the positioning rod 550, and the positioning ball 530 quickly returns to its original position, which is convenient for fixing the branch tube 002 next time.

[0056] The outer wall of the branch pipe 002 matches the internal dimensions of the regulating pipe 005. A sealing strip 570 is fixedly connected to the outer wall of the branch pipe 002. Multiple second positioning grooves 580 are provided on the outer wall of the sealing strip 570. The internal dimensions of the second positioning grooves 580 match the external dimensions of the positioning ball 530.

[0057] The sealing strip 570 is designed to ensure that after the branch pipe 002 enters the connecting pipe 003, the branch pipe 002 is closely connected to the connecting pipe 003, sealing the connection of the branch pipe 002 and preventing the irrigation liquid from overflowing.

[0058] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0059] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A T-tube for bronchoalveolar lavage, comprising: Main branch pipe (001); Its characteristic is that it also includes: Branch tube (002), two branch tubes (002) are provided, the two branch tubes (002) are located above the main branch tube (001), and the two branch tubes (002) are respectively used to inject physiological saline into the bronchoalveolar cavity and to recover the lavage fluid; A connecting pipe (003) is provided at the top end of the main branch pipe (001) and is used to connect the main branch pipe (001) and two branch pipes (002). A switching assembly (004) is disposed inside a connecting pipe (003) and is used for switching between two branch pipes (002). The switching assembly (004) includes a ball valve (401) disposed inside the connecting pipe (003). The outer wall size of the ball valve (401) matches the inner size of the branch pipe (002). A fixed ring (402) is rotatably connected to the outer wall of the ball valve (401). The fixed ring (402) is fixedly connected to the connecting pipe (003). A movable groove (403) is provided on the inner wall of the fixed ring (402). A sliding block (404) is slidably connected inside the movable groove (403). The sliding block (404) is fixedly connected to the ball valve (401). The bottom end of the sliding block (404) passes through the fixed ring (402). A switching toothed ring (405) is fixedly connected to the bottom end of the sliding block (404). An adjusting pipe (005) is provided at the bottom end of two branch pipes (002) and is used to connect the two branch pipes (002).

2. The Y-connector for bronchoalveolar lavage according to claim 1, characterized in that: The central axis of the branch pipe (002) is at a 45° angle to the central axis of the main branch pipe (001), and the branch pipe (002) is connected to the main branch pipe (001) through a connecting pipe (003).

3. The Y-connector for bronchoalveolar lavage according to claim 2, characterized in that: The ball valve (401) has a flow divider groove (410) inside. The shape of the flow divider groove (410) is set at 45°. The flow divider groove (410) corresponds to the outlet of the branch pipe (002).

4. The Y-connector for bronchoalveolar lavage according to claim 1, characterized in that: The switching toothed ring (405) is rotatably connected to the connecting pipe (003), and the two sides of the switching toothed ring (405) are meshed with switching toothed plates (420), and the switching toothed plates (420) are slidably connected to the connecting pipe (003).

5. The Y-connector for bronchoalveolar lavage according to claim 1, characterized in that: A fixed seat (310) is fixedly connected to the outer wall of the connecting pipe (003). A switching button (320) is rotatably connected inside the fixed seat (310). A fixed cylinder (330) is fixedly connected to the bottom end of the switching button (320). A movable spring (340) is provided inside the fixed cylinder (330). A sliding rod (350) is fixedly connected to the bottom end of the movable spring (340).

6. The Y-connector for bronchoalveolar lavage according to claim 5, characterized in that: The sliding rod (350) is slidably connected to the fixed cylinder (330). The bottom end of the sliding rod (350) is provided with a pressing spring plate (360). The middle end of the pressing spring plate (360) is rotatably connected to the connecting pipe (003). Both ends of the pressing spring plate (360) are fixedly connected with a fixing plate (370).

7. The Y-connector for bronchoalveolar lavage according to claim 6, characterized in that: The inner walls of the two fixed plates (370) are provided with adjustment grooves (371), and an adjustment shaft (372) is slidably connected inside the adjustment grooves (371). The adjustment shaft (372) is fixedly connected to the switching tooth plate (420).

8. The Y-connector for bronchoalveolar lavage according to claim 1, characterized in that: The outer wall of the regulating tube (005) is rotatably connected to an regulating ring (510). The regulating ring (510) has multiple first positioning grooves (520) inside. The multiple first positioning grooves (520) are all inclined. Each first positioning groove (520) is deeper at the rear end and shallower at the front end. Each first positioning groove (520) has a positioning ball (530) inside.

9. The Y-connector for bronchoalveolar lavage according to claim 8, characterized in that: The positioning ball (530) has a sliding groove (540) at both ends. A positioning rod (550) is slidably connected inside the sliding groove (540). A return spring (560) is fixedly connected to the bottom end of the positioning rod (550). The return spring (560) is fixedly connected to the adjusting tube (005). The top end of the positioning rod (550) extends into the adjusting tube (005). The inner wall of the adjusting tube (005) has multiple sliding grooves (551). The sliding grooves (551) are slidably connected to the positioning rod (550).

10. The Y-connector for bronchoalveolar lavage according to claim 9, characterized in that: The outer wall of the branch pipe (002) matches the internal dimensions of the regulating pipe (005). A sealing strip (570) is fixedly connected to the outer wall of the branch pipe (002). A plurality of second positioning grooves (580) are opened on the outer wall of the sealing strip (570). The internal dimensions of the second positioning grooves (580) match the external dimensions of the positioning ball (530).

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