Anti-blocking medical negative pressure aspirator

Abstract

The utility model discloses an anti-blocking medical negative pressure aspirator which comprises a negative pressure aspirator body, a suction head is arranged at the top end of the negative pressure aspirator body, a through pipe is arranged in the negative pressure aspirator body and connected with the suction head, a filter screen plate is arranged in the middle of the through pipe, and a connecting pipe is arranged on the side, close to the filter screen plate, of the through pipe. The end, away from the through pipe, of the connecting pipe is provided with a flow dividing cavity, an electric control telescopic rod is arranged in the top end of the flow dividing cavity, the execution end of the electric control telescopic rod is connected with a connecting plate, one end of the connecting plate is provided with a cleaning grabbing rake, connecting shafts are arranged on the two sides of the connecting position of the connecting pipe and the filter screen plate, and a limiting sleeve rod is arranged between the two connecting shafts. An intercepting net plate is arranged in the middle in the flow dividing cavity, and the bottom end of the flow dividing cavity is connected with the through pipe and provided with a branch pipe. According to the utility model, the cleaning grabbing rake is arranged on one side of the inclined filter plate in the negative pressure aspirator and is driven by the electric control telescopic rod to grab and scrape viscous tissues attached to the filter screen plate, so that the filter screen plate ensures the circulation of filter holes and the smoothness of a through pipe.

Description

Technical Field

[0001] The utility model relates to a negative pressure suction device, in particular to an anti-blocking medical negative pressure suction device, belonging to the technical field of medical equipment. Background Art

[0002] During orthopedic surgery, a large amount of blood and water will be produced, so the blood and water need to be sucked out through a suction device, which is usually composed of a suction bottle, a suction bag and an external negative pressure device. The operation of the negative pressure device causes a negative pressure state in the suction bag and the suction bottle, so that the blood and water are sucked into the suction bag through the catheter.

[0003] After searching, Chinese patent number CN217853988U discloses a blockage-proof negative pressure aspirator for orthopedic surgery. The filter is tilted 45 degrees in the horizontal direction, which can effectively prevent the filter from being blocked and ensure the flow of liquid. However, in actual use, blood, exudate, pus, pleural effusion and the contents of abdominal organs during surgery are all sucked out by the negative pressure aspirator, and there will be certain body tissues. The tilted filter in the above-mentioned patented product can play a certain interception role, but the relatively viscous blood tissue will stick to the filter and still cause blockage of the filter, affecting the normal operation of the suction head of the negative pressure device. Utility Model Content

[0004] The purpose of the present utility model is to provide a blockage-proof medical negative pressure aspirator in order to solve the above-mentioned problem.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions: a blocking-proof medical negative pressure aspirator, comprising a negative pressure aspirator body, a suction head is provided at the top of the negative pressure aspirator body, a through pipe is provided inside the negative pressure aspirator body and connected to the suction head, a filter plate is provided in the middle of the through pipe, an anti-blocking device is provided on the side of the through pipe close to the filter plate, the anti-blocking device comprises a connecting pipe, a diversion cavity, an electrically controlled telescopic rod, a connecting shaft, a limiting sleeve rod, a cleaning rake, a connecting plate, an intercepting mesh plate and a branch pipe, the through pipe is close to the filter plate A connecting pipe is provided on one side of the filter plate, and the end of the connecting pipe away from the through pipe is connected to a diversion chamber, and an electric telescopic rod is provided inside the top of the diversion chamber close to the through pipe. The execution end of the electric telescopic rod is connected to a connecting plate, and the end of the connecting plate away from the electric telescopic rod is provided with a cleaning rake. Connecting shafts are provided on both sides of the connection between the connecting pipe and the filter plate, and a limiting sleeve rod is provided between the two connecting shafts. An intercepting mesh plate is provided in the middle of the diversion chamber, and a branch pipe is provided on the bottom end of the diversion chamber and connected to the through pipe.

[0006] Preferably, the non-executing end of the electrically-controlled telescopic rod is arranged in the inner wall of the top end of the diversion chamber, the filter plate is arranged at an angle, the inclination angle of the filter plate is 45°, the cleaning rake is fixedly connected to the connecting plate, and the connecting plate is hinged to the executive end of the electrically-controlled telescopic rod, and the hinge angle between the connecting plate and the electrically-controlled telescopic rod is 0-45°.

[0007] Preferably, the cleaning rake is movably engaged with the limiting sleeve rod.

[0008] Preferably, a fixing seat is provided at the bottom end of the negative pressure aspirator body, and a fixing device is provided on the fixing seat, and the fixing device includes a rotating knob, a bidirectional screw rod, a fixing rod and a rubber pad. Baffles are provided on both sides of the fixed seat, and a rotating knob is provided on one side of the fixing seat, and a bidirectional screw rod is provided at one end of the rotating knob close to the fixing seat, and fixing rods are provided on both sides of the bidirectional screw rod. Rubber pads are provided on the top ends of the two fixing rods on opposite sides, and a placement groove is provided on the baffle near the position of the fixing rod.

[0009] Preferably, the size of the placement groove is consistent with the size of the fixing rod, and the fixing rod is connected to the bidirectional screw rod and nut.

[0010] Preferably, a handle is provided at the top of the negative pressure suction device body, a placement rack is provided at the side of the top of the negative pressure suction device body close to the suction head, the placement rack is arranged in a Y shape, an operation panel is provided at one side of the negative pressure suction device body, and a switch is provided at the side of the negative pressure suction device body away from the operation panel.

[0011] The beneficial effect of the present invention is that in actual use, blood, exudate, pus, pleural effusion and the contents of abdominal organs in surgery are all sucked out by a negative pressure suction device, and there will be certain body tissues. The inclined filter in the above-mentioned patented product can play a certain interception role, but the relatively viscous blood tissue will stick to the filter and still cause blockage to the filter, affecting the normal operation of the negative pressure device suction head. The present invention is provided with a cleaning rake on one side of the inclined filter plate inside the negative pressure suction device, which is driven by an electrically controlled telescopic rod to scrape and clean the filter plate, grab and scrape the viscous tissue attached to the filter plate, so that the filter plate can ensure the circulation of the filter holes, ensure the patency of the through pipe, and reduce the adsorption effect on the suction head. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a three-dimensional diagram of the overall structure of an anti-blocking medical negative pressure aspirator proposed by the utility model;

[0013] Figure 2 This is a schematic structural diagram of an anti-blocking device for a medical negative pressure aspirator proposed in the present invention;

[0014] Figure 3 This is a schematic structural diagram of an anti-blocking medical negative pressure aspirator fixing device proposed by the present invention;

[0015] Figure 4 The utility model is a schematic structural diagram of an anti-blocking device for a medical negative pressure aspirator.

[0016] In the figure: 1. Negative pressure aspirator body; 101. Handle; 102. Operation panel; 103. Switch; 104. Suction head; 105. Placement rack; 2. Fixing seat; 201. Baffle; 202. Placement slot; 3. Fixing device; 301. Rotating knob; 302. Bidirectional screw rod; 303. Fixing rod; 304. Rubber pad; 4. Through pipe; 401. Filter plate; 5. Anti-blocking device; 501. Connecting pipe; 502. Diversion chamber; 503. Electric telescopic rod; 504. Connecting shaft; 505. Limiting sleeve; 506. Cleaning rake; 507. Connecting plate; 508. Intercepting mesh plate; 509. Branch pipe. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-4 As shown, a blocking-proof medical negative pressure aspirator comprises a negative pressure aspirator body 1, a suction head 104 is provided at the top of the negative pressure aspirator body 1, a through pipe 4 is provided inside the negative pressure aspirator body 1 and connected to the suction head 104, a filter plate 401 is provided in the middle of the through pipe 4, and a blocking-proof device 5 is provided on the side of the through pipe 4 close to the filter plate 401, the blocking-proof device 5 comprises a connecting pipe 501, a diversion cavity 502, an electrically controlled telescopic rod 503, a connecting shaft 504, a limiting sleeve rod 505, a cleaning rake 506, a connecting plate 507, an intercepting mesh plate 508 and a branch pipe 509, and a connecting pipe 4 is provided on the side close to the filter plate 401 Tube 501, the end of the connecting tube 501 away from the through tube 4 is connected to a diversion chamber 502, the top of the diversion chamber 502 is provided with an electric telescopic rod 503 near the through tube 4, the execution end of the electric telescopic rod 503 is connected with a connecting plate 507, the end of the connecting plate 507 away from the electric telescopic rod 503 is provided with a cleaning rake 506, connecting shafts 504 are provided on both sides of the connection between the connecting tube 501 and the filter plate 401, a limiting sleeve rod 505 is provided between the two connecting shafts 504, an intercepting mesh plate 508 is provided in the middle of the diversion chamber 502, and the bottom end of the diversion chamber 502 is connected to the through tube 4 with a branch pipe 509.

[0019] The non-executing end of the electric-controlled telescopic rod 503 is arranged in the inner wall of the top end of the diversion chamber 502, the filter plate 401 is arranged at an angle, the inclination angle of the filter plate 401 is 45°, the cleaning rake 506 is fixedly connected to the connecting plate 507, the connecting plate 507 is hinged to the executive end of the electric-controlled telescopic rod 503, the hinge angle of the connecting plate 507 and the electric-controlled telescopic rod 503 is 0-45°, and the cleaning rake 506 is movably engaged with the limit sleeve 505.

[0020] According to the above embodiments, it should be noted that: during the operation, when blood, exudate, pus, pleural effusion and the contents of abdominal organs are sucked away using the negative pressure suction device body 1, the blood, exudate, pus, pleural effusion and the contents of abdominal organs will enter the through tube 4 through the suction head 104, and the tissues in the blood, exudate, pus, pleural effusion and the contents of abdominal organs will be intercepted by the filter plate 401 provided on the through tube 4. Part of the tissue will slide down through the connecting tube 501 through the inclination angle of the filter plate 401 and fall into the shunt cavity 502, while the more viscous tissue will adhere to the filter plate 401.

[0021] The electric-controlled telescopic rod 503 is started to drive the connecting plate 507 connected to its executive end to move back and forth, driving the cleaning rake 506 stuck on the limit sleeve 505 to move back and forth. Since the angle of the hinge between the executive end of the electric-controlled telescopic rod 503 and the connecting plate 507 is 0-45 degrees, when the connecting plate 507 is close to the limit sleeve 505, the front end of the cleaning rake 506 will move to the front end of the filter plate 401. As the electric-controlled telescopic rod 503 retracts, the cleaning rake 506 scrapes and cleans the surface of the filter plate 401, so that the tissue attached to it is scraped and slides down and falls into the diversion cavity 502, and then is further intercepted and filtered by the interception mesh plate 508. The blood water passes through the interception mesh plate 508 and the branch pipe 509 and flows into the through pipe 4.

[0022] See also Figure 1-4As shown, a blocking-proof medical negative pressure aspirator comprises a negative pressure aspirator body 1, a fixing seat 2 is provided at the bottom end, a fixing device 3 is provided on the fixing seat 2, the fixing device 3 comprises a rotating knob 301, a bidirectional screw rod 302, a fixing rod 303 and a rubber pad 304, baffles 201 are provided on both sides of the fixing seat 2, a rotating knob 301 is provided on one side of the fixing seat 2, a bidirectional screw rod 302 is provided on one end of the rotating knob 301 close to the fixing seat 2, fixing rods 303 are provided on both sides of the bidirectional screw rod 302, and the tops of the two fixing rods 303 on opposite sides are provided with Rubber pad 304, a placement groove 202 is provided at the position of the baffle 201 near the fixed rod 303, the size of the placement groove 202 is consistent with the size of the fixed rod 303, the fixed rod 303 is connected to the bidirectional screw rod 302 with a nut, a handle 101 is provided at the top of the negative pressure suction device body 1, a placement rack 105 is provided on the side of the top of the negative pressure suction device body 1 close to the suction head 104, the placement rack 105 is arranged in a Y shape, an operation panel 102 is provided on one side of the negative pressure suction device body 1, and a switch 103 is provided on the side of the negative pressure suction device body 1 away from the operation panel 102.

[0023] According to the above embodiments, it should be noted that the negative pressure aspirator body 1 can be lifted by the handle 101 for easy transportation.

[0024] When fixing the negative pressure suction device body 1, align the negative pressure suction device body 1 with the fixing seat 2 and place it in, manually twist the rotating knob 301 to drive the double-headed screw rod 302 to rotate, and the two fixing rods 303 connected to the nut of the double-headed screw rod 302 approach each other to clamp and fix the two sides of the negative pressure suction device body 1. The rubber pad 304 increases the friction of the fixing rod 303 on the negative pressure suction device body 1, thereby improving the stability of the fixation.

[0025] To sum up, the usage process of this device is as follows: during surgery, when blood, exudate, pus, pleural effusion and the contents of abdominal organs are sucked out using the negative pressure suction device body 1, the blood, exudate, pus, pleural effusion and the contents of abdominal organs will enter the through tube 4 through the suction head 104, and the tissues in the blood, exudate, pus, pleural effusion and the contents of abdominal organs will be intercepted by the filter plate 401 set on the through tube 4. Part of the tissue will slide down through the connecting tube 501 through the inclination angle of the filter plate 401 and fall into the diversion cavity 502, while the more viscous tissue will adhere to the filter plate 401.

[0026] The electric-controlled telescopic rod 503 is started to drive the connecting plate 507 connected to its executive end to move back and forth, driving the cleaning rake 506 stuck on the limit sleeve 505 to move back and forth. Since the angle of the hinge between the executive end of the electric-controlled telescopic rod 503 and the connecting plate 507 is 0-45 degrees, when the connecting plate 507 is close to the limit sleeve 505, the front end of the cleaning rake 506 will move to the front end of the filter plate 401. As the electric-controlled telescopic rod 503 retracts, the cleaning rake 506 scrapes and cleans the surface of the filter plate 401, so that the tissue attached to it is scraped and slides down and falls into the diversion cavity 502, and then is further intercepted and filtered by the interception mesh plate 508. The blood water passes through the interception mesh plate 508 and the branch pipe 509 and flows into the through pipe 4.

[0027] The negative pressure aspirator body 1 can be lifted by the handle 101 for easy transportation.

[0028] When fixing the negative pressure suction device body 1, align the negative pressure suction device body 1 with the fixing seat 2 and place it in, manually twist the rotating knob 301 to drive the double-headed screw rod 302 to rotate, and the two fixing rods 303 connected to the nut of the double-headed screw rod 302 approach each other to clamp and fix the two sides of the negative pressure suction device body 1. The rubber pad 304 increases the friction of the fixing rod 303 on the negative pressure suction device body 1, thereby improving the stability of the fixation.

Claims

1. A blockage-proof medical negative pressure aspirator, comprising a negative pressure aspirator body (1), characterized in that: The top of the negative pressure suction device body (1) is provided with a suction head (104), the interior of the negative pressure suction device body (1) is connected to the suction head (104) and is provided with a through pipe (4), a filter plate (401) is provided in the middle of the through pipe (4), and an anti-blocking device (5) is provided on the side of the through pipe (4) close to the filter plate (401), and the anti-blocking device (5) comprises a connecting pipe (501), a diversion cavity (502), an electrically controlled telescopic rod (503), a connecting shaft (504), a limiting sleeve rod (505), a cleaning rake (506), a connecting plate (507), an intercepting mesh plate (508) and a branch pipe (509), and a connecting pipe (501) is provided on the side of the through pipe (4) close to the filter plate (401). A diversion chamber (502) is connected to one end away from the through pipe (4), an electric-controlled telescopic rod (503) is provided inside the top end of the diversion chamber (502) close to the through pipe (4), a connecting plate (507) is connected to the execution end of the electric-controlled telescopic rod (503), a cleaning rake (506) is provided at one end of the connecting plate (507) away from the electric-controlled telescopic rod (503), connecting shafts (504) are provided on both sides of the connection between the connecting pipe (501) and the filter plate (401), a limiting sleeve rod (505) is provided between the two connecting shafts (504), an intercepting mesh plate (508) is provided in the middle of the diversion chamber (502), and a branch pipe (509) is provided at the bottom end of the diversion chamber (502) connected to the through pipe (4).

2. The anti-blocking medical negative pressure aspirator according to claim 1, characterized in that: The non-executing end of the electrically controlled telescopic rod (503) is arranged in the inner wall of the top end of the diversion chamber (502); the filter plate (401) is arranged at an angle; the inclination angle of the filter plate (401) is 45°; the cleaning rake (506) is fixedly connected to the connecting plate (507); the connecting plate (507) is hinged to the executing end of the electrically controlled telescopic rod (503); and the hinge angle of the connecting plate (507) and the electrically controlled telescopic rod (503) is 0-45°.

3. The anti-blocking medical negative pressure aspirator according to claim 2, characterized in that: The cleaning rake (506) is movably engaged with the limiting sleeve rod (505).

4. The anti-blocking medical negative pressure aspirator according to claim 1, characterized in that: The bottom end of the negative pressure suction device body (1) is provided with a fixing seat (2), and the fixing seat (2) is provided with a fixing device (3), and the fixing device (3) includes a rotating knob (301), a bidirectional screw rod (302), a fixing rod (303) and a rubber pad (304). Baffles (201) are provided on both sides of the fixing seat (2), and a rotating knob (301) is provided on one side of the fixing seat (2). A bidirectional screw rod (302) is provided on one end of the rotating knob (301) close to the fixing seat (2). Fixing rods (303) are provided on both sides of the bidirectional screw rod (302), and rubber pads (304) are provided on the top ends of the two fixing rods (303) on opposite sides. A placement groove (202) is provided on the baffle (201) close to the fixing rod (303).

5. The anti-blocking medical negative pressure aspirator according to claim 4, characterized in that: The size of the placement slot (202) is consistent with the size of the fixing rod (303), and the fixing rod (303) is connected to the nut of the bidirectional screw rod (302).

6. The anti-blocking medical negative pressure aspirator according to claim 5, characterized in that: The top of the negative pressure suction device body (1) is provided with a handle (101), the top of the negative pressure suction device body (1) is provided with a placement rack (105) on the side close to the suction head (104), and the placement rack (105) is arranged in a Y shape. An operation panel (102) is provided on one side of the negative pressure suction device body (1), and a switch (103) is provided on the side of the negative pressure suction device body (1) away from the operation panel (102).

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