Nasopharynx suction tube for transnasal approach operation

Abstract

The invention discloses a nasopharynx suction tube for a transnasal approach operation, and relates to the technical field of medical instruments for neurosurgery and otolaryngology operations, and adopts the technical scheme that the nasopharynx suction tube comprises a suction main tube, the front end of the suction main tube is in threaded connection with a suction hose, and two rows of rotating rings are rotationally connected to the front end position in the suction hose; a rotating ring is arranged at the bottom of the fixing ring, crisscrossed crushing pieces are fixedly connected to the interior of the rotating ring, and a negative pressure adjusting mechanism is fixedly connected to the side, away from the suction hose, of the suction main pipe, the fixing mechanism arranged at the bottom of the fixing ring drives the clamping piece to be closed inwards, and the suction main pipe can be fixed to the upper portion of teeth of a patient; when the suction hose is blocked, one side of the suction main pipe is closed temporarily through the negative pressure adjusting mechanism, then the locking mechanism is controlled to be opened, and the suction main pipe and the suction hose are closed through the negative pressure adjusting mechanism, so that blood in the nasopharynx or the sphenoid sinus can be sucked. At the moment, a person can inject normal saline into the flushing and blocking pipe to discharge obstructions in the suction hose.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments for neurosurgery and otolaryngology, and in particular to a nasopharyngeal suction tube for transnasal approach surgery. Background Art

[0002] Transnasal surgery is a minimally invasive technique commonly used in neurosurgery and otolaryngology. It is mainly used to treat various lesions in the sellar area, sphenoid sinus and nasopharynx. The surgery enters through the nasal cavity and achieves precise operation on the area with minimal trauma. Among them, the nasopharyngeal suction tube is an important tool for the surgery, which is designed to remove blood and secretions produced during the operation and ensure a clear field of vision. The suction tube is made of soft material and has good biocompatibility. It can effectively reduce stimulation to surrounding tissues during surgery. Its design is usually slender, which is convenient for introduction through the nasal cavity, and is equipped with an efficient negative pressure device to quickly drain fluids and keep the surgical area dry and clean. With the advancement of surgical technology, the patient's recovery time is significantly shortened, and the incidence of postoperative complications is also greatly reduced, which greatly improves the overall treatment level of otolaryngology.

[0003] After searching, the Chinese patent number CN219127570U discloses a nasopharyngeal suction tube for transnasal approach surgery, including a suction tube body and a suction hose connected thereto, the tail of the suction tube body and the upper end surface of the suction hose are both provided with a guide rope hole block, and the suction tube body and the upper end surface of the suction hose are movably provided with a traction rope that runs through the guide rope hole block, and a shaping plate is embedded in the upper part of the suction hose; a notched ring groove is provided on the outer wall of the middle part of the suction tube body, ribs are symmetrically arranged in the notched ring groove, and a pressure regulating diaphragm is sealed between adjacent ribs, and a pressing assembly for fixing the traction rope is provided on the top rib. The end of the traction rope drives the suction hose to bend after overcoming the reverse elastic force of the shaping plate, and the bending angle of the suction hose is adjusted according to actual needs, so as to reach the sphenoid sinus position quickly and accurately; the pressure regulating diaphragms on both sides are pressed to adjust the gas flow cross-sectional area in the middle of the inner side of the suction tube body, thereby adaptively adjusting the negative pressure suction force on the air inlet side of the suction hose. Compared with the prior art, the Chinese patent number CN219127570U solves the problem that although the material characteristics of the existing suction hose are convenient for reaching the nasopharynx through the oral cavity, the bending angle of the suction hose is arbitrary and cannot be adjusted according to actual needs, resulting in the suction hose being unable to quickly and accurately reach the sphenoid sinus.

[0004] However, in actual use of the above device, blood clots may block the hose when sucking blood and smoke through the suction tube, and replacing the hose is time-consuming. Repeated in and out operation may also cause damage to the nasal mucosa. In addition, the existing hose is generally fixed to the skin surface with tape during the suction process, and the fixing effect is not good and requires personnel to pay attention and observe. Therefore, a nasopharyngeal suction tube for transnasal approach surgery is proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that blood clots may block the hose when sucking blood and smoke through a suction tube, and replacing the hose will consume time, and repeated in and out operation will also cause damage to the nasal mucosa. In addition, the existing hose is generally fixed to the skin surface by tape during the suction process, and the fixing effect is poor and requires personnel to pay attention and observe. A nasopharyngeal suction tube for transnasal approach surgery is proposed.

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

[0007] A nasopharyngeal suction tube for transnasal approach surgery comprises a suction main tube, a suction hose is threadedly connected to the front end of the suction main tube, two rows of rotating rings are rotatably connected to the front end of the suction hose, cross-staggered broken pieces are fixedly connected to the inside of the rotating ring, a negative pressure regulating mechanism is fixedly connected to the side of the suction main tube away from the suction hose, and the negative pressure regulating mechanism can adjust the negative pressure of the negative pressure regulating shell during suction;

[0008] The suction main pipe is slidably connected to a fixing ring on one side close to the negative pressure regulating shell, and a fixing mechanism is fixedly connected to the bottom of the fixing ring, through which two clamping members arranged at the bottom can be driven to move relative to each other, so as to fix the suction main pipe on the patient's teeth; a locking mechanism is fixedly connected to one side of the fixed shell close to the negative pressure regulating shell, and a blocking tube is fixedly connected to the suction main pipe in the direction close to the fixed shell, and the locking mechanism can drive the first locking member and the second locking member to close inward, so as to press the blocking tube.

[0009] The above technical solution further includes:

[0010] The fixing mechanism comprises a fixing shell fixedly connected to the fixing ring, a first motor is arranged on the upper part of the side wall of the fixing shell, and a fixing component is arranged at the output end of the first motor.

[0011] The fixing assembly includes a rotating rod arranged at the output end of the first motor, connecting rods are symmetrically connected to the two sides of the rotating rod, a slider is rotatably connected to the side of the connecting rod away from the rotating rod, the slider is slidably connected to the fixed shell, a clamping piece is fixedly connected to the bottom of the slider, and a rubber pad is fixedly connected to the front end of the clamping piece.

[0012] The locking mechanism comprises a locking shell fixedly connected to a fixed shell close to one side of the negative pressure regulating shell, a second motor is arranged inside the locking shell, and a locking assembly is arranged at an output end of the second motor.

[0013] The locking assembly includes a first gear disposed at the output end of the second motor, the first gear is meshedly connected with a first locking member, the first locking member is rotationally connected to a locking housing, and a locking head is fixedly connected to the upper side of the first locking member.

[0014] A second gear is fixedly connected to the side of the first gear away from the second motor. The second gear is rotationally connected to the locking housing. The second gear is meshingly connected to the second locking member. A locking head is fixedly connected to the upper side of the second locking member.

[0015] The negative pressure regulating mechanism comprises a negative pressure regulating shell fixedly connected to the suction main pipe, a regulating shell fixedly connected inside the negative pressure regulating shell, a third motor is arranged inside the regulating shell, and a regulating component is arranged at the output end of the third motor.

[0016] The adjustment component includes a third gear arranged at the output end of the third motor, and transmission racks are meshed and connected on both sides of the third gear. A connecting piece is fixedly connected to the side of the transmission rack away from the third gear, and the connecting piece is fixedly connected to the movable baffle, and the movable baffle is slidably connected to the negative pressure adjustment shell.

[0017] The present invention has the following beneficial effects:

[0018] 1. In the present invention, after the personnel inserts the suction hose into the nasopharynx through the patient's mouth and then reaches the sphenoid sinus, the clamping member can be driven to close inward by the fixing mechanism arranged at the bottom of the fixing ring, so as to fix the suction main pipe above the patient's teeth, thereby effectively improving the stability of the suction main pipe and the suction hose when extracting blood from the nasopharynx or sphenoid sinus. The personnel no longer need to be distracted. When a blockage occurs in the suction hose during the extraction process, the negative pressure regulating mechanism can be used to temporarily close one side of the suction main pipe, and then the locking mechanism can be controlled to open. At this time, the personnel can discharge the obstruction in the suction hose by injecting physiological saline into the flushing tube, so that the suction hose can be quickly restored to normal state, which greatly reduces the time for dealing with the blockage in the suction hose during the operation.

[0019] 2. In the present invention, when the blood and tissue fluid in the nasopharynx or sphenoid sinus are extracted through the suction main tube, the two movable baffles inside can be controlled to move by the provided negative pressure regulating mechanism, so that the cross-sectional area through which the gas flows in the middle of the inner side of the suction main tube can be adjusted, thereby adaptively adjusting the negative pressure suction force on the air inlet side of the suction hose, thereby improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a nasopharyngeal suction tube for transnasal approach surgery proposed by the present invention;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the first structure of the present invention;

[0023] Figure 4 It is a second structural schematic diagram of the present invention;

[0024] Figure 5 It is a schematic diagram of the third structure of the present invention;

[0025] Figure 6 It is a schematic diagram of the fourth structure of the present invention;

[0026] Figure 7 It is a fifth structural schematic diagram of the present invention;

[0027] Figure 8 It is a sixth structural schematic diagram of the present invention;

[0028] Fig. 9 This is the seventh structural diagram of the present invention.

[0029] In the figure: 1. suction main pipe; 2. suction hose; 3. fixing ring; 4. negative pressure regulating shell; 5. blocking pipe; 6. fixing shell; 7. rotating ring; 8. crushing piece; 9. locking shell; 10. clamping part; 11. first motor; 12. rubber pad; 13. rotating rod; 14. connecting rod; 15. sliding block; 16. first locking part; 17. second locking part; 18. locking head; 19. first gear; 20. second gear; 21. second motor; 22. adjusting shell; 23. movable baffle; 24. third motor; 25. third gear; 26. transmission rack; 27. connecting part. DETAILED DESCRIPTION

[0030] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0031] Embodiment 1

[0032] like Figure 1-Figure 9As shown, the present invention proposes a nasopharyngeal suction tube for transnasal approach surgery, comprising a suction main tube 1, a suction hose 2 is threadedly connected to the front end of the suction main tube 1, two rows of rotating rings 7 are rotatably connected to the front end of the suction hose 2, a cross-staggered crushing piece 8 is fixedly connected to the rotating ring 7, and a negative pressure regulating mechanism is fixedly connected to the side of the suction main tube 1 away from the suction hose 2, and the negative pressure regulating mechanism can adjust the negative pressure of the negative pressure regulating housing 4 during suction;

[0033] A fixing ring 3 is slidably connected to the suction main pipe 1 near the negative pressure regulating housing 4, and a fixing mechanism is fixedly connected to the bottom of the fixing ring 3. The fixing mechanism can drive two clamping members 10 arranged at the bottom to move relatively, so as to fix the suction main pipe 1 on the patient's teeth. A locking mechanism is fixedly connected to the side of the fixed housing 6 near the negative pressure regulating housing 4, and a blocking pipe 5 is fixedly connected to the suction main pipe 1 near the side of the fixed housing 6. The locking mechanism can drive the first locking member 16 and the second locking member 17 to close inward, so as to press the blocking pipe 5 tightly.

[0034] The fixing mechanism comprises a fixing housing 6 fixedly connected to the fixing ring 3, a first motor 11 is arranged on the upper part of the side wall of the fixing housing 6, and a fixing component is arranged at the output end of the first motor 11;

[0035] The fixed assembly includes a rotating rod 13 provided at the output end of the first motor 11, and connecting rods 14 are symmetrically rotatably connected on both sides of the rotating rod 13, and a slider 15 is rotatably connected to the side of the connecting rod 14 away from the rotating rod 13, and the slider 15 is slidably connected to the fixed housing 6, and a clamping member 10 is fixedly connected to the bottom of the slider 15, and a rubber pad 12 is fixedly connected to the front end of the clamping member 10;

[0036] The locking mechanism includes a locking shell 9 fixedly connected to the fixed shell 6 near the side of the negative pressure regulating shell 4, a second motor 21 is arranged inside the locking shell 9, and a locking assembly is arranged at the output end of the second motor 21, and the locking assembly includes a first gear 19 arranged at the output end of the second motor 21, the first gear 19 is meshedly connected with the first locking piece 16, the first locking piece 16 is rotatably connected to the locking shell 9, a locking head 18 is fixedly connected to the upper side of the first locking piece 16, a second gear 20 is fixedly connected to the side of the first gear 19 away from the second motor 21, the second gear 20 is rotatably connected to the locking shell 9, the second gear 20 is meshedly connected with the second locking piece 17, and the locking head 18 is fixedly connected to the upper side of the second locking piece 17.

[0037] In this embodiment, when in use, the personnel first insert the suction hose 2 through the patient's mouth into the nasopharynx, and then reach the sphenoid sinus. After the insertion is completed, the first motor 11 set on the fixed shell 6 can be started, and the first motor 11 can drive the rotating rod 13 to rotate. The rotation of the rotating rod 13 can drive the connecting rods 14 rotatably connected on both sides to rotate. The rotation of the connecting rod 14 can drive the rotatably connected slider 15 to move along the fixed shell 6. The movement of the slider 15 can drive the clamping member 10 set at the bottom to move inward, so as to clamp the patient's teeth, so that the suction main tube 1 is fixed above the patient's teeth, which effectively improves the stability of the suction main tube 1 and the suction hose 2 when extracting blood in the nasopharynx or sphenoid sinus. In addition, a rubber pad 12 is also provided at the front end of the clamping member 10 to ensure that the patient's teeth will not be damaged during the fixing process.

[0038] During the extraction process, the blocking tube 5 can be compressed by the locking mechanism to prevent the sucked blood or tissue fluid from flowing into the blocking tube 5 and affecting the use. In addition, a rotating ring 7 is rotatably connected to the front end of the suction hose 2. During the extraction process, when the blood or tissue fluid flows through the rotating ring 7, the rotating ring 7 is driven to rotate, and then the crushing piece 8 provided on the rotating ring 7 is also driven to rotate, which can crush some large coagulated blood clots, thereby reducing the probability of blockage of the suction hose 2.

[0039] When the suction hose 2 is blocked, one side of the suction main pipe 1 can be temporarily closed by the negative pressure regulating mechanism, and then the second motor 21 can be started. The second motor 21 can drive the first gear 19 and the second gear 20 to rotate. The rotation of the first gear 19 and the second gear 20 can drive the meshing first locking member 16 and the second locking member 17 to rotate to both sides, thereby releasing the lock of the locking shell 9. At this time, the personnel can discharge the obstruction in the suction hose 2 by injecting saline into the flushing tube 5, so that the suction hose 2 can be quickly restored to normal, which greatly reduces the time for dealing with the blockage in the suction hose 2 during the operation.

[0040] Embodiment 2

[0041] like Figure 1-Figure 9 As shown, the negative pressure regulating mechanism includes a negative pressure regulating housing 4 fixedly connected to the suction main pipe 1, a regulating housing 22 is fixedly connected inside the negative pressure regulating housing 4, a third motor 24 is arranged inside the regulating housing 22, and an regulating component is arranged at the output end of the third motor 24;

[0042] The adjustment component includes a third gear 25 arranged at the output end of the third motor 24, and the third gear 25 is meshed with transmission racks 26 on both sides. The transmission rack 26 is fixedly connected to the side away from the third gear 25 with a connecting member 27, the connecting member 27 is fixedly connected to the movable baffle 23, and the movable baffle 23 is slidably connected to the negative pressure adjustment shell 4.

[0043] In this embodiment, when blood and tissue fluid in the nasopharynx or sphenoid sinus are extracted through the suction main pipe 1, the third motor 24 arranged inside the adjusting shell 22 can be used to drive the third gear 25 to rotate. The rotation of the third gear 25 can drive the transmission rack 26 symmetrically meshed at both ends to move, and the movement of the transmission rack 26 can drive the movable baffle 23 fixedly connected by the connecting piece 27 to move, so that the device can adjust the gas flow cross-sectional area in the middle of the inner side of the suction main pipe 1, thereby adaptively adjusting the negative pressure suction force on the air inlet side of the suction hose 2, thereby improving the use effect of the device.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nasopharyngeal suction tube for transnasal approach surgery, comprising a suction main tube (1), characterized in that: The front end of the suction main pipe (1) is threadedly connected to a suction hose (2), the front end of the suction hose (2) is rotatably connected to two rows of rotating rings (7), the rotating rings (7) are fixedly connected to cross-staggered crushing pieces (8), and the side of the suction main pipe (1) away from the suction hose (2) is fixedly connected to a negative pressure regulating mechanism, and the negative pressure regulating mechanism can adjust the negative pressure of the negative pressure regulating housing (4) during suction; The suction main pipe (1) is slidably connected to a fixing ring (3) on the side close to the negative pressure regulating shell (4); the fixing ring (3) is fixedly connected to a fixing mechanism on the bottom, which can drive two clamping members (10) arranged at the bottom to move relative to each other, thereby fixing the suction main pipe (1) on the patient's teeth; the fixing shell (6) is fixedly connected to a locking mechanism on the side close to the negative pressure regulating shell (4); the suction main pipe (1) is fixedly connected to a blocking tube (5) on the side close to the fixing shell (6); the locking mechanism can drive a first locking member (16) and a second locking member (17) to close inwards, thereby pressing the blocking tube (5).

2. The nasopharyngeal suction tube for transnasal surgery according to claim 1, characterized in that: The fixing mechanism comprises a fixing housing (6) fixedly connected to the fixing ring (3), a first motor (11) is arranged on the upper part of the side wall of the fixing housing (6), and a fixing component is arranged at the output end of the first motor (11).

3. The nasopharyngeal suction tube for transnasal surgery according to claim 2, characterized in that: The fixing assembly comprises a rotating rod (13) arranged at the output end of the first motor (11), the rotating rod (13) is symmetrically rotatably connected to connecting rods (14) on both sides, the connecting rod (14) is rotatably connected to a sliding block (15) on the side away from the rotating rod (13), the sliding block (15) is slidably connected to the fixed housing (6), the bottom of the sliding block (15) is fixedly connected to a clamping member (10), and the front end of the clamping member (10) is fixedly connected to a rubber pad (12).

4. The nasopharyngeal suction tube for transnasal surgery according to claim 1, characterized in that: The locking mechanism comprises a locking shell (9) fixedly connected to a fixed shell (6) close to a side of a negative pressure regulating shell (4), a second motor (21) is arranged inside the locking shell (9), and a locking component is arranged at an output end of the second motor (21).

5. The nasopharyngeal suction tube for transnasal surgery according to claim 4, characterized in that: The locking assembly comprises a first gear (19) arranged at the output end of a second motor (21); the first gear (19) is meshingly connected with a first locking member (16); the first locking member (16) is rotationally connected to a locking housing (9); and a locking head (18) is fixedly connected to the upper side of the first locking member (16).

6. The nasopharyngeal suction tube for transnasal surgery according to claim 5, characterized in that: A second gear (20) is fixedly connected to the side of the first gear (19) away from the second motor (21); the second gear (20) is rotationally connected to the locking housing (9); the second gear (20) is meshingly connected to the second locking member (17); a locking head (18) is fixedly connected to the upper side of the second locking member (17).

7. The nasopharyngeal suction tube for transnasal surgery according to claim 1, characterized in that: The negative pressure regulating mechanism comprises a negative pressure regulating shell (4) fixedly connected to the suction main pipe (1); a regulating shell (22) is fixedly connected inside the negative pressure regulating shell (4); a third motor (24) is arranged inside the regulating shell (22); and a regulating component is arranged at the output end of the third motor (24).

8. The nasopharyngeal suction tube for transnasal surgery according to claim 7, characterized in that: The regulating assembly comprises a third gear (25) arranged at the output end of a third motor (24), transmission racks (26) are meshingly connected on both sides of the third gear (25), a connecting piece (27) is fixedly connected to the side of the transmission rack (26) away from the third gear (25), the connecting piece (27) is fixedly connected to the movable baffle (23), and the movable baffle (23) is slidably connected to the negative pressure regulating housing (4).

Images