Flushing aspirator with high sealing performance
By setting a sealing ring between the connecting head of the laparoscopic flushing suction device and the main sweeper pipe, the problem of poor airtightness after sterilization is solved, ensuring the stability of the equipment and the effect of preventing fluid from overflowing.
Patent Information
- Application Number
- CN202420103796.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-16
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-01-16
AI Technical Summary
Existing laparoscopic rinsing suction devices are prone to poor airtightness after sterilization and high temperature, resulting in air leakage and drip leakage.
A first sealing ring is provided between the connector and the main punch pipe, and an internal thread and an external thread is used to ensure airtightness and a second sealing ring is added to the piston and cap design to prevent liquid accumulation from overflowing.
It effectively improves the air tightness between the connector and the main pulse suction pipe, avoids air leakage caused by deformation after sterilization, and reduces the risk of polluting the environment.
Smart Images
Figure CN222195597U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of aspirators, and in particular to a highly sealed flushing aspirator. Background Art
[0002] Laparoscopic surgery has brought about tremendous changes in the minimally invasive diagnosis and treatment of diseases. Timely flushing of peritoneal blood or tissue debris and rapid removal of blood from the wound or intraperitoneal fluid to expose the surgical field are important auxiliary techniques for laparoscopic surgery. The flushing function of the currently used laparoscopic suction device is achieved by the assistant pushing the syringe to a water inlet valve to flush water into the abdominal cavity; its suction function is achieved by connecting the air inlet valve to the central negative pressure suction. A laparoscopic irrigator with automatic flushing and suction functions is urgently needed in clinical practice.
[0003] Existing flushing suction devices are generally provided with a connector, which is used to connect the suction tube and the suction device. In the past, the connection between the connector and the suction device mostly relied on the inner wall fitting and sealing after the plastic part was locked at an angle, which was prone to poor airtightness. In addition, after sterilization and high temperature, the plastic part was at risk of deformation, resulting in poor airtightness, thereby causing leakage and dripping. Utility Model Content
[0004] The technical problem to be solved by the present application is to provide a highly sealed flushing aspirator, in which a sealing ring is arranged between the connector and the valve body port, thereby solving the problem of poor air tightness of the connector after sterilization and high temperature.
[0005] In order to solve the above problems, the following technical solutions are provided:
[0006] The high-sealing flushing and suction device of this scheme includes a main flushing and suction pipe and a connector, and is characterized in that one end of the connector is connected to the suction tube, the other end of the connector is threadedly connected to the port of the main flushing and suction pipe, and a first sealing ring is provided between this end of the connector and the port of the main flushing and suction pipe.
[0007] By adopting the above technical solution: adding a sealing ring at the connection between the connector and the main flushing and suction pipe, the air tightness between the connector and the main flushing and suction pipe is better guaranteed, and the deformation caused by sterilization and high temperature is avoided, making the fit more stable.
[0008] Both ends of the connector have internal threaded pipe openings, the port of the main flushing and suction pipe is an external threaded pipe opening, one internal threaded pipe opening of the connector is connected to the suction pipe via an external threaded adapter sleeve, the other internal threaded pipe opening is connected to the external threaded pipe opening of the main flushing and suction pipe, and a retaining ring is fixedly connected to the internal threaded pipe opening, the first sealing ring is fixedly installed on the retaining ring, the external threaded pipe opening of the main flushing and suction pipe is screwed into the internal threaded pipe opening of the main flushing and suction pipe and the first sealing ring is pressed against the retaining ring.
[0009] By adopting the above technical solution: the two ends of the connecting head are respectively connected to the suction pipe and the main flushing and suction pipe, the suction pipe is conveniently replaced by cooperating with the connecting head through an adapter sleeve, the connecting head and the main flushing and suction pipe are connected through an internally threaded pipe mouth and an externally threaded pipe mouth, and the first sealing ring is arranged on the retaining ring of the internally threaded pipe mouth, when the externally threaded pipe mouth is screwed into the internally threaded pipe mouth, one end of the externally threaded pipe mouth will squeeze the first sealing ring, so that there is not only a fitting seal between the internally threaded pipe mouth and the externally threaded pipe mouth, but also sealing through the first sealing ring, thereby better ensuring the air tightness of the connection between the connecting head and the valve body.
[0010] The main flushing and suction pipe is also connected to a flushing valve and a suction valve. An anti-blocking port is opened at one end of the main flushing and suction pipe away from the port. A screw cover is connected to the anti-blocking port. A piston is arranged in the anti-blocking port. The piston is fitted with the inner wall of the main flushing and suction pipe in a sliding and sealing manner. One end of the piston is fixedly connected to the inner side of the screw cover.
[0011] By adopting the above technical solution: one end of the main flushing and suction pipe is provided with an anti-blocking port, and the anti-blocking port is provided with a screw cap, the screw cap is connected to the piston, and after unscrewing the screw cap, the piston can be used to ensure that the accumulated fluid and tissue in the main flushing and suction pipe will not overflow immediately. Only after the piston is pulled out and the accumulated fluid is drained, the main flushing and suction pipe can be cleared, thereby reducing the risk of environmental pollution.
[0012] A slot is provided on the inner side of the rotary cover, and the piston comprises a head and a rod body. The head is slidingly and sealingly connected to the main flushing and suction pipe through a second sealing ring. One end of the rod body is connected to the head, and the other end is connected to an insert block for inserting into the slot.
[0013] By adopting the above technical solution: the piston includes a head and a rod body, the head and the rotary cover are connected through the rod body, and one end of the rod body is inserted into the slot of the rotary cover through an insert block, so that the piston and the rotary cover can be quickly replaced or disassembled.
[0014] The flushing valve and the suction valve both include a tube body that is slidably sealed with the inner wall of the main flushing and suction pipe, a first flow hole is opened on the side of the tube body, a pressing rod is provided in the tube body and one end of the pressing rod is connected to a pressing cap, the end of the pressing cap is provided with a reset spring for resetting the pressing rod, the interior of the pressing rod is provided with a flow channel connected to the main flushing and suction pipe, the pressing rod is provided with a second flow hole, when the pressing rod is pressed down, the first flow hole is connected to the flow channel through the second flow hole, when the pressing rod is reset, the first flow hole and the second flow hole are disconnected when they are offset, the first flow hole on the tube body corresponding to the flushing valve is connected to a water inlet joint, and the first flow hole on the tube body corresponding to the suction valve is connected to a negative pressure joint.
[0015] By adopting the above technical solution: the flushing valve and the suction valve have the same valve body structure, for the flushing valve, the first flow hole of the flushing valve is used for water intake, and the pressing cap of the flushing valve is pressed down by overcoming the reset spring so that the first flow hole is connected with the second flow hole, so that water flows through the flushing valve into the main flushing and suction pipe and then reaches the suction tube, and the first flow hole of the suction valve is used for suction, when the pressing cap on the suction valve is pressed, the first flow hole on the suction valve is connected with the second flow hole on the pressing rod, and the suction tube can be used to suck the accumulated fluid in the abdominal cavity and discharge it through the pipe connected to the negative pressure joint.
[0016] Three groups of third sealing rings are installed on the pressing rod, and the second flow hole on the pressing rod is arranged between two adjacent third sealing rings close to the pressing cap, and the distance between the other two adjacent third sealing rings is greater than the aperture of the first flow hole.
[0017] By adopting the above technical solution: when the first flow hole is connected to the second flow hole, the first flow hole and the second flow hole are stably connected through the third sealing rings on both sides of the second flow hole; when the first flow hole and the second flow hole are staggered, the two third sealing rings above the second flow hole are located on both sides of the first flow hole and cooperate with the pressing rod body to isolate the flow from the first flow hole to the flow channel.
[0018] One end of the main flushing and suction pipe away from the anti-blocking port is a port, one end of the suction tube is connected to the port through a connector, and a first sealing ring is provided at the connection between the port and the connector.
[0019] By adopting the above technical solution: in order to prevent poor airtightness of the instrument during use and to prevent air leakage caused by deformation of plastic parts after sterilization, a first sealing ring is provided between the connector and the main flushing and suction pipe to ensure airtightness. At the same time, the connector can be replaced with a straight tube or a right-angle tube to facilitate operation in conjunction with the surgery.
[0020] The plug is a plug.
[0021] The above solution has the following advantages:
[0022] 1. In the present application, a sealing ring is added at the connection between the connector and the main flushing and suction pipe, so that the air tightness between the connector and the main flushing and suction pipe is better guaranteed, and deformation caused by sterilization and high temperature is avoided, making the fit more stable.
[0023] 2. In the present application, one end of the main flushing and suction pipe is provided with an anti-blocking port, and the anti-blocking port is provided with a screw cap, which is connected to the piston. After unscrewing the screw cap, the piston can ensure that the accumulated fluid and tissue in the main flushing and suction pipe will not overflow immediately. Only after the piston is pulled out and the accumulated fluid is drained can the main flushing and suction pipe be cleared, thereby reducing the risk of environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a schematic diagram of the overall structure of the high-sealing flushing and aspirator of the present application;
[0025] Figure 2 This is a schematic diagram of the cross-sectional structure of the high-sealing irrigation aspirator of the present application.
[0026] Figure numerals: 1. main flushing and suction pipe; 2. suction pipe; 3. flushing valve; 4. suction valve; 5. screw cap; 501. slot; 6. connector; 601. first sealing ring; 7. negative pressure connector; 8. water inlet connector; 901. head; 902. rod; 903. plug-in block; 10. second sealing ring; 11. tube body; 12. pressing rod; 13. second flow hole; 14. reset spring; 15. pressing cap; 16. flow channel; 17. first flow hole; 18. third sealing ring; 19. adapter sleeve; 20. retaining ring. DETAILED DESCRIPTION
[0027] The present invention is described below with reference to the accompanying drawings and embodiments.
[0028] Example
[0029] The high-sealing flushing and suction device of the present embodiment comprises a main flushing and suction pipe 1 and a connector 6, one end of the connector 6 is connected to the suction tube 2, the other end of the connector 6 is threadedly connected to the port of the main flushing and suction pipe 1, and a third sealing ring 18 is provided between the end of the connector 6 and the port of the main flushing and suction pipe 1. A sealing ring is added at the connection between the connector 6 and the main flushing and suction pipe 1, so that the airtightness between the connector 6 and the main flushing and suction pipe 1 is better guaranteed, and deformation caused by sterilization and high temperature is avoided, making the fit more stable.
[0030] Specifically, Figure 2 As shown, both ends of the connector 6 have internal threaded pipe openings, the port of the main flushing and suction pipe 1 is an external threaded pipe opening, one internal threaded pipe opening of the connector 6 is connected to the suction pipe 2 through an external threaded adapter sleeve 19, the other internal threaded pipe opening is connected to the external threaded pipe opening of the main flushing and suction pipe 1 and a retaining ring 20 is fixedly connected to the internal threaded pipe opening, the third sealing ring 18 is fixedly installed on the retaining ring 20, the external threaded pipe opening of the main flushing and suction pipe is screwed into the internal threaded pipe opening of the main flushing and suction pipe 1 and the third sealing ring 18 is pressed against the retaining ring 20, and the two ends of the connector 6 are respectively connected to the suction pipe 2. Tube 2 and the main flushing and suction pipe 1, the suction pipe 2 is conveniently replaced by cooperating with the connecting head 6 through the adapter sleeve 19, the connecting head 6 and the main flushing and suction pipe 1 are connected through the internal threaded pipe mouth and the external threaded pipe mouth, and the third sealing ring 18 is arranged on the retaining ring 20 of the internal threaded pipe mouth. When the external threaded pipe mouth is screwed into the internal threaded pipe mouth, one end of the external threaded pipe mouth will squeeze the third sealing ring 18, so that there is not only a fitting seal between the internal threaded pipe mouth and the external threaded pipe mouth, but also sealing through the third sealing ring 18, which better ensures the air tightness of the connection between the connecting head 6 and the valve body.
[0031] Furthermore, if Figure 1 As shown, the main flushing and suction pipe 1 of this embodiment is also connected with a flushing valve 3 and a suction valve 4, and an anti-blocking port is opened at one end of the main flushing and suction pipe 1 away from the suction tube 2, and a screw cap 5 is connected to the anti-blocking port, and a piston is arranged in the anti-blocking port, and the piston and the inner wall of the main flushing and suction pipe 1 are in a sliding and sealing state, and one end of the piston is fixedly connected to the inner side of the screw cap 5. One end of the main flushing and suction pipe 1 has an anti-blocking port, and a screw cap 5 is provided on the anti-blocking port, and the screw cap 5 is connected to the piston. After unscrewing the screw cap 5, the piston can ensure that the accumulated fluid and tissue in the main flushing and suction pipe 1 will not overflow immediately. When the piston is pulled out and the accumulated fluid is drained, the main flushing and suction pipe 1 can be dredged, reducing the risk of environmental pollution.
[0032] Furthermore, a slot 501 is provided inside the rotary cover 5, and the piston includes a head 901 and a rod 902, the head 901 is slidably sealed and connected to the main flushing and suction pipe 1 through a second sealing ring 10, one end of the rod 902 is connected to the head 901, and the other end is connected to an insert 903 for inserting into the slot 501. The piston includes a head 901 and a rod 902, the head 901 and the rotary cover 5 are connected through the rod 902, and one end of the rod 902 is inserted into the slot 501 of the rotary cover 5 through the insert 903, so as to complete the rapid replacement or removal of the piston and the rotary cover 5. In this embodiment, the insert 903 is a plug.
[0033] Furthermore, if Figure 2As shown, the flushing valve 3 and the suction valve 4 both include a tube body 11 that is slidably sealed with the inner wall of the main flushing and suction pipe 1, a first flow hole 17 is opened on the side of the tube body 11, a pressing rod 12 is arranged in the tube body 11, and one end of the pressing rod 12 is connected to a pressing cap 15, and the end of the pressing cap 15 is provided with a reset spring 14 for resetting the pressing rod 12, a flow channel 16 connected to the main flushing and suction pipe 1 is arranged inside the pressing rod, and a second flow hole 13 is arranged on the pressing rod. When the pressing rod 12 is pressed down, the first flow hole 17 is connected to the flow channel 16 through the second flow hole 13, and when the pressing rod 12 is reset, the first flow hole 17 is disconnected from the second flow hole 13 when they are offset, the first flow hole 17 on the tube body 11 corresponding to the flushing valve 3 is connected to the water inlet joint 8, and the first flow hole 17 on the tube body 11 corresponding to the suction valve 4 is connected to the negative pressure joint 7. The flushing valve 3 and the suction valve 4 have the same valve body structure. For the flushing valve 3, the first flow hole 17 of the flushing valve 3 is used for water intake. The pressing cap 15 of the flushing valve 3 is pressed down to overcome the reset spring 14 so that the first flow hole 17 is connected with the second flow hole 13, so that water flows through the flushing valve 3 into the main flushing and suction pipe 1 and then reaches the suction tube 2. The first flow hole 17 of the suction valve 4 is used for suction. When the pressing cap 15 on the suction valve 4 is pressed, the first flow hole 17 on the suction valve 4 is connected with the second flow hole 13 on the pressing rod, and the suction tube 2 can be used to suck the accumulated fluid in the abdominal cavity and discharge it through the pipe connected to the negative pressure joint 7.
[0034] Furthermore, three groups of third sealing rings 18 are installed on the pressing rod 12, and the second flow hole 13 on the pressing rod 12 is arranged between two adjacent third sealing rings 18 close to the pressing cap 15, and the distance between the other two adjacent third sealing rings 18 is greater than the aperture of the first flow hole 17. When the first flow hole 17 is connected with the second flow hole 13, the first flow hole 17 and the second flow hole 13 are stably connected through the third sealing rings 18 on both sides of the second flow hole 13. When the first flow hole 17 and the second flow hole 13 are staggered, the two third sealing rings 18 above the second flow hole 13 are located on both sides of the first flow hole 17 and cooperate with the pressing rod 12 body 902 to isolate the first flow hole 17 from flowing to the flow channel 16.
[0035] Furthermore, one end of the main flushing and suction pipe 1 away from the anti-blocking port is a port, and one end of the suction tube 2 is connected to the port through a connector 6, and a first sealing ring 601 is provided at the connection between the port and the connector 6. In order to prevent poor air tightness during use of the instrument and prevent air leakage caused by deformation of the plastic parts after sterilization, a first sealing ring 601 is provided between the connector 6 and the main flushing and suction pipe 1 to ensure air tightness. At the same time, the connector 6 can be replaced with a straight tube or a right-angle tube, which is convenient for operation with surgery.
[0036] During use, connect the negative pressure connector 7 to the medical vacuum machine, and connect the water inlet connector 8 to the water pump. When it is necessary to suction the accumulated fluid in the abdominal cavity, press the pressing cap 15 on the suction valve 4, and press the rod 12 up and down until the first flow hole 17 of the suction valve 4 is connected to the second flow hole 13. At this time, the suction force of the vacuum machine can directly reach the suction tube 2, thereby sucking the accumulated fluid in the abdominal cavity.
[0037] When flushing is required, Figure 2 As shown, pressing the pressing cap 15 on the flushing valve 3 is the same as operating the flushing valve 3. The pressing cap 15 squeezes the pressing rod 12 until the first flow hole 17 in the flushing valve 3 is connected to the second flow hole 13, so that water flows through the first flow hole 17 and the second flow hole 13 into the flow channel 16 and reaches the suction tube 2 to flush the area to be flushed.
[0038] For example Figure 2 As shown, when blockage forms in the main flushing and suction pipe 1, slowly unscrew the screw cap 5. At this time, the anti-blocking opening of the main flushing and suction pipe 1 is placed above the medical waste bin. The piston head 901 is tilted at a certain angle by hand to create a dripping gap between the second sealing ring 10 and the inner wall of the main flushing and suction pipe 1. After the accumulated fluid stops dripping, the piston can be taken out by screwing the screw cap 5. At the same time, tools are used to clear the main flushing and suction pipe 1, avoiding direct outflow of accumulated fluid or tissue, reducing pollution to the environment and the risk of infection for the surgeon.
[0039] The present invention is described above in conjunction with specific implementation methods, but those skilled in the art should be aware that these descriptions are exemplary and are not limitations on the scope of protection of the present invention, and that those skilled in the art can make various variations and modifications to the present invention based on the spirit and principles of the present invention, and these variations and modifications are also within the scope of the present invention.
Claims
1. A high-sealing flushing and suction device, comprising a main flushing and suction pipe (1) and a connector (6), characterized in that: One end of the connector (6) is connected to the suction tube, and the other end of the connector (6) is threadedly connected to the port of the main flushing and suction pipe (1), and a first sealing ring (601) is provided between the end of the connector (6) and the port of the main flushing and suction pipe (1); Both ends of the connector (6) have internal threaded pipe openings, and the port of the main flushing and suction pipe (1) is an external threaded pipe opening. One internal threaded pipe opening of the connector (6) is connected to the suction pipe (2) through an external threaded adapter sleeve (19), and the other internal threaded pipe opening is connected to the external threaded pipe opening of the main flushing and suction pipe (1) and a retaining ring (20) is fixedly connected to the internal threaded pipe opening. The first sealing ring (601) is fixedly installed on the retaining ring (20), and the external threaded pipe opening of the main flushing and suction pipe (1) is screwed into the internal threaded pipe opening of the main flushing and suction pipe (1) and the first sealing ring (601) is pressed against the retaining ring (20).
2. A high-sealing irrigation and suction device according to claim 1, characterized in that: The main flushing and suction pipe (1) is also connected to a flushing valve (3) and a suction valve (4); an anti-blocking opening is provided at one end of the main flushing and suction pipe (1) away from the port; a rotary cover (5) is connected to the anti-blocking opening; a piston is provided in the anti-blocking opening; the piston is in sliding sealing engagement with the inner wall of the main flushing and suction pipe (1); one end of the piston is fixedly connected to the inner side of the rotary cover (5).
3. A high-sealing irrigation and suction device according to claim 2, characterized in that: A slot (501) is provided on the inner side of the rotary cover (5), and the piston comprises a head (901) and a rod (902). The head (901) is slidably and sealingly connected to the main flushing and suction pipe (1) via a second sealing ring (10). One end of the rod (902) is connected to the head (901), and the other end is connected to an insert (903) for inserting into the slot (501).
4. A high-sealing irrigation and suction device according to claim 2, characterized in that: The flushing valve (3) and the suction valve (4) both comprise a tube body (11) that is slidably sealed with the inner wall of the main flushing and suction pipe (1), a first flow hole (17) is provided on the side of the tube body (11), a pressing rod (12) is provided in the tube body (11), and one end of the pressing rod (12) is connected to a pressing cap (15), the end of the pressing cap (15) is provided with a return spring (14) for returning the pressing rod (12), and the interior of the pressing rod is provided with a flow channel (16) connected to the main flushing and suction pipe (1). ), a second flow hole (13) is provided on the pressing rod; when the pressing rod (12) is pressed down, the first flow hole (17) is connected to the flow channel (16) through the second flow hole (13); when the pressing rod (12) is reset, the first flow hole (17) and the second flow hole (13) are disconnected when they are offset; the first flow hole (17) on the tube body (11) corresponding to the flushing valve (3) is connected to a water inlet joint (8), and the first flow hole (17) on the tube body (11) corresponding to the suction valve (4) is connected to a negative pressure joint (7).
5. A high-sealing irrigation and suction device according to claim 4, characterized in that: Three groups of third sealing rings (18) are installed on the pressing rod (12), and the second circulation hole (13) on the pressing rod (12) is arranged between two adjacent third sealing rings (18) close to the pressing cap (15), and the distance between the other two adjacent third sealing rings (18) is greater than the aperture of the first circulation hole (17).
6. A high-sealing irrigation and suction device according to claim 3, characterized in that: The plug (903) is a plug.