Lower drum suction cutting pliers

Abstract

The invention discloses a lower roller type suction cutting forceps, which belongs to the technical field of surgical equipment. The top of the suction catheter is connected with a rectangular suction chamber box, the side wall of the suction chamber box is connected with a branch pipe, the end of the branch pipe is connected with the suction device airway through a stepped joint, the top of the suction chamber box is screwed into the tail seat joint, a rotating shaft is arranged in the tail seat joint, and the rotating shaft is connected with the motor of the craniotomy power system, wherein a roller knife is arranged in the end of the suction catheter, the bottom of the roller knife is provided with inner ring saw teeth, the top of the roller knife is connected with the end of the thin rotating shaft through a support plate, the thin rotating shaft is located in the suction catheter, the tail end of the thin rotating shaft is fixedly connected with a wing plate, and the thin rotating shaft is connected with the rotating shaft of the tail seat joint through the wing plate, the suction device airway draws away the gas inside the suction chamber box, so that negative pressure is formed inside, so that the end of the suction catheter is suctioned, the craniotomy power system motor is started, the roller knife is operated, and the excess mucosal tissue sucked in is cut off, so as to avoid the clogging of the suction catheter and facilitate the subsequent operation of the operation.

Description

Technical Field

[0001] The invention relates to a lower drum type suction and cutting forceps, belonging to the technical field of surgical equipment. Background Art

[0002] In endoscopic minimally invasive surgery, it is necessary to operate through cavities such as the nose or sinus. Therefore, mucosa or soft tissue is often difficult to remove and is oozing with blood. Although the suction device can suck out the blood, it is difficult to remove soft tissues such as mucosa and some thin bones during the suction process, which greatly affects the efficiency of the surgical operation. In addition, the suction process affects blood suction and easily blocks the suction tube. Summary of the invention

[0003] In order to solve the deficiencies of the above-mentioned prior art, the present invention provides a lower drum type suction and cutting forceps, which can suck blood and cut the mucosa and bone in the suction tube at the same time, thereby ensuring the patency of the suction device, effectively removing excess tissue in the surgical pathway, improving surgical efficiency, improving the punching effect, and facilitating subsequent operations.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a lower roller type suction cutting forceps, including a suction catheter, a suction cavity box, a branch pipe, a step-shaped joint, a tailstock joint, a thin shaft rod, a roller knife, a wing plate and a support plate, the suction catheter is a cylindrical tube body, the top of which is connected with a rectangular suction cavity box, the side wall of the suction cavity box is provided with a speed regulating air-permeable groove, the side wall of the suction cavity box is connected with a branch pipe, the end of the branch pipe is fixedly connected with a step-shaped joint, which is connected with the suction device airway through the step-shaped joint, the top of the suction cavity box is threaded with a tailstock joint, a rotating shaft is arranged in the tailstock joint, and the rotating shaft is connected with the motor of the craniotomy power system, wherein a roller knife is arranged in the end of the suction catheter, the roller knife is a cylindrical body without a cover at the top, the diameter of the roller knife is the same as the inner diameter of the suction catheter, the bottom end of the roller knife is provided with an inner ring sawtooth, the top of the roller knife is connected with the end of the thin shaft rod through the support plate, the thin shaft rod is located in the suction catheter, the tail end of the thin shaft rod is fixedly connected with a wing plate, and the thin shaft rod is connected with the rotating shaft of the tailstock joint through the wing plate;

[0005] There are five types of suction catheters, namely a straight tube type and four bottom-bent types. The bottom-bent type has four bent tube bodies with the bottom ends facing the four directions of front, back, left and right. The roller knife in the bottom-bent tube body is located in the tube body above the bend.

[0006] Among them, the tailstock joint is composed of an externally threaded sleeve, a rotating shaft, a hexagonal knob sleeve, a clamping plate, an internal hexagonal locking screw, a motor docking sleeve, a sealing bearing and a locking ring. The externally threaded sleeve is a cylindrical tube body with an external thread on the front end. The externally threaded sleeve is screwed into the top of the suction chamber box and is connected with its internal cavity. The externally threaded sleeve above the suction chamber box is fixedly connected with a hexagonal knob sleeve on the outside. A notch is provided at the top of the externally threaded sleeve. Clamping plates are fixedly connected to the side walls on both sides of the notch of the externally threaded sleeve. The two clamping plates are parallel to each other and are locked by an internal hexagonal locking screw. A partition is provided at the hexagonal knob sleeve in the externally threaded tube. An axial hole is provided in the center of the partition. A rotating shaft is inserted into the axial hole. The side walls of the rotating shaft It is provided with an external thread, and sealed bearings are provided on the rotating shafts above and below the partition. A motor docking sleeve fixedly connected to the top of the rotating shaft is provided on the top of the upper sealed bearing, and a docking groove is provided inside the motor docking sleeve. The docking groove of the motor docking sleeve is the same shape as the power shaft end of the connected craniotomy power system motor, and can be plugged into the power shaft end of the craniotomy power system motor through the docking groove. A locking ring threaded into the rotating shaft is provided at the lower end of the lower sealed bearing, and a duckbill notch is provided at the end of the rotating shaft extending below the locking ring, and an axial hole is provided at the end of the duckbill notch, and the diameter of the axial hole is the same as the diameter of the thin shaft rod. The tail end of the thin shaft rod is inserted into the axial hole of the duckbill notch at the front end of the rotating shaft, and the duckbill notch clamps the wing plate at the tail end of the thin shaft rod.

[0007] The beneficial effects of the present invention are: it solves the problem that there is a lot of excess tissue in the existing minimally invasive channel and it is not easy to remove it, and provides a multi-angle lower drum suction and cutting forceps that can draw blood while cutting the mucosa and bone in the suction tube, ensuring the patency of the suction device, effectively removing excess tissue in the channel, improving surgical efficiency, improving the effect, and facilitating subsequent operations. The entire device has a compact structure, is easy to use, and is easy to disassemble and clean and disinfect. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0009] Figure 1 It is a structural schematic diagram of the present invention.

[0010] Figure 2 It is the front view of the present invention.

[0011] Figure 3 It is the main cross-sectional view of the present invention.

[0012] Figure 4 It is a partial structural cross-sectional view of the present invention.

[0013] Figure 5 It is a cross-sectional view of the tailstock joint structure of the present invention.

[0014] Figure 6 It is a schematic diagram of the tailstock joint structure of the present invention.

[0015] Figure 7 It is a schematic diagram of the tailstock joint structure of the present invention.

[0016] Figure 8 It is a schematic diagram of the structure of the tail end of the thin shaft rod of the present invention.

[0017] Fig. 9 It is a structural schematic diagram of the roller knife of the present invention.

[0018] Fig.10 It is a structural schematic diagram of the roller knife of the present invention.

[0019] Fig.11 It is a schematic diagram of the pipe end structure of the present invention.

[0020] Fig.12 It is a schematic diagram of the structure of the present invention installed on the motor of the craniotomy power system.

[0021] Fig.13 This is a cross-sectional view of the structure of the present invention installed on the motor of the craniotomy power system.

[0022] Fig.14 The present invention is a schematic structural diagram of an elbow suction catheter.

[0023] Fig.15 It is a structural cross-sectional view of the elbow suction tube of the present invention.

[0024] Numbers in the figure:

[0025] 1. Suction catheter, 2. Suction chamber box, 3. Speed ​​regulating venting groove, 4. Branch pipe, 5. Stepped joint, 6. Tail stock joint, 7. Thin shaft, 8. Roller knife, 9. External threaded sleeve, 10. Rotating shaft, 11. Duckbill notch, 12. Hexagonal knob sleeve, 13. Notch, 14. Clamping plate, 15. Hexagon socket locking screw, 16. Motor docking sleeve, 17. Sealed bearing, 18. Locking ring, 19. Docking groove, 20. Wing plate, 21. Inner ring serration, 22. Support plate, 23. Craniotomy power system motor. DETAILED DESCRIPTION

[0026] like Figure 1-15 As shown, a lower roller type suction cutting forceps includes a suction catheter 1, a suction chamber box 2, a branch pipe 4, a stepped joint 5, a tail seat joint 6, a thin shaft rod 7, a roller knife 8, a wing plate 20 and a support plate 22.

[0027] The suction catheter 1 is a cylindrical tube body, and its top end is connected to a rectangular suction chamber box 2. A speed-regulating air vent 3 is provided on the side wall of the suction chamber box 2. A branch pipe 4 is connected to the side wall of the suction chamber box 2. A stepped joint 5 is fixedly connected to the end of the branch pipe 4. The step joint 5 is connected to the suction device air duct. The suction device air duct draws away the internal gas of the suction chamber box 2 to form a negative pressure inside the suction chamber box 2, thereby allowing the end of the suction catheter 1 to perform suction. The speed-regulating air vent 3 allows air to contact the inside of the suction chamber box 2. By blocking the exposed area of ​​the speed-regulating air vent 3 with the thumb, the negative pressure value in the suction chamber box 2, that is, the suction force at the end of the suction catheter 1, can be controlled.

[0028] The tailstock joint 6 is screwed into the top of the suction chamber box 2, and a rotating shaft is arranged in the tailstock joint 6, and its rotating shaft is connected to the motor 23 of the craniotomy power system, wherein a roller knife 8 is arranged in the end of the suction catheter 1, and the roller knife 8 is a cylindrical body without a cover at the top, and the diameter of the roller knife 8 is the same as the inner diameter of the suction catheter 7, and an inner ring serration 21 is arranged at the bottom of the roller knife 8, and the top of the roller knife 8 is connected to the end of the thin shaft rod 7 through a support plate 22, and the thin shaft rod 7 is located in the suction catheter 1, and a wing plate 20 is fixedly connected to the tail end of the thin shaft rod 7, and the thin shaft rod 7 is connected to the rotating shaft of the tailstock joint 6 through the wing plate 20. Start the craniotomy power system motor 23, and its shaft end drives the thin shaft rod 7 to rotate through the rotating shaft of the tailstock joint 6, so that the roller knife 8 is in operation, and when the end of the suction catheter 1 sucks in excess mucosal tissue, the inner ring serration 21 at the bottom of the roller knife 8 can cut it off, so as to avoid clogging of the suction catheter 1, remove excess tissue at the punching place, and facilitate subsequent operation of the operation.

[0029] There are five types of suction catheters 1, namely a straight tube type and four bottom-bent types. The bottom-bent type has four bent tube bodies with the bottom ends facing the four directions of front, back, left and right. The roller knife 8 in the bottom-bent tube body is located in the tube body above the bend.

[0030] Among them, the tailstock joint 6 is composed of an externally threaded sleeve 9, a rotating shaft 10, a hexagonal knob sleeve 12, a clamping plate 14, an internal hexagonal locking screw 15, a motor docking sleeve 16, a sealing bearing 17 and a locking ring 18. The externally threaded sleeve 9 is a cylindrical tube body with an external thread on the front end. The externally threaded sleeve 9 is screwed into the top of the suction chamber box 2 and is connected with its internal cavity. The outer side of the externally threaded sleeve 9 above the suction chamber box 2 is fixedly connected with a hexagonal knob sleeve 12, and a notch 13 is opened at the top of the externally threaded sleeve 9. Clamping plates 14 are fixedly connected to the side walls on both sides of the notch 13 of the externally threaded sleeve 9. The two clamping plates 14 are parallel to each other, and the two clamping plates 14 are locked by an internal hexagonal locking screw 15. The craniotomy power system motor 23 inserted into the tail end of the externally threaded sleeve 9 can be locked and fixed by the internal hexagonal locking screw 15.

[0031] A partition is provided at the hexagonal knob sleeve 12 in the external threaded tube 9, an axial hole is opened in the center of the partition, a rotating shaft 10 is inserted into the axial hole, a side wall of the rotating shaft 10 is provided with an external thread, and sealed bearings 17 are sleeved on the rotating shaft 10 above and below the partition.

[0032] A motor docking sleeve 16 is provided on the top of the upper sealed bearing 17 and is fixedly connected to the top of the rotating shaft 10. A docking groove 19 is provided inside the motor docking sleeve 16. The docking groove 19 of the motor docking sleeve 16 has the same shape as the power shaft end of the connected craniotomy power system motor 23. The synchronous operation of the rotating shaft 10 is achieved by plugging the docking groove 19 into the power shaft end of the craniotomy power system motor 23.

[0033] A locking ring 18 which is threaded into the rotating shaft 10 is provided at the lower end of the lower sealed bearing 17. The rotating shaft 10, whose tail end is fixedly connected to the motor docking sleeve 16, is fixed between the two sealed bearings 17 through the locking ring 18. The locking ring 18 and the motor docking sleeve 16 are both pressed against the inner ring of the sealed bearing 17, and the outer ring of the sealed bearing 17 is pressed against the partition to ensure the operation of the rotating shaft 10.

[0034] A duckbill notch 11 is provided at the end of the rotating shaft 10 extending below the locking ring 18, and an axial hole is provided at the end of the duckbill notch 11. The diameter of the axial hole is the same as the diameter of the thin shaft rod 7. The tail end of the thin shaft rod 7 is inserted into the axial hole of the duckbill notch 11 at the front end of the rotating shaft 10. The duckbill notch 11 clamps the wing plate 20 at the tail end of the thin shaft rod 7. When the craniotomy power system motor 23 drives the rotating shaft 10 to rotate through the motor docking sleeve 16, the rotating shaft 10 drives the clamped wing plate 20 to rotate through the duckbill notch 11, thereby driving the thin shaft rod 7 to operate, thereby realizing the cutting of the roller knife 8 at the end of the thin shaft rod 7.

Claims

1. A lower drum type suction cutting pliers, characterized in that: The invention comprises a suction catheter (1), a suction chamber box (2), a branch pipe (4), a stepped joint (5), a tailstock joint (6), a thin shaft rod (7), a roller knife (8), a wing plate (20) and a support plate (22). The suction catheter (1) is a cylindrical tube body, the top end of which is connected to a rectangular suction chamber box (2). The side wall of the suction chamber box (2) is provided with a speed regulating venting groove (3). The side wall of the suction chamber box (2) is connected to a branch pipe (4). The end of the branch pipe (4) is fixedly connected to a stepped joint (5). The branch pipe (4) is connected to the air guide tube of the suction device through the stepped joint (5). The top end of the suction chamber box (2) is screwed into the tailstock joint (3). A base joint (6), a rotating shaft is arranged inside the tail base joint (6), and the rotating shaft is connected to a motor (23) of a craniotomy power system, wherein a roller knife (8) is arranged inside the end of the suction catheter (1), the roller knife (8) is a cylindrical body without a cover at the top, an inner ring sawtooth (21) is arranged at the bottom end of the roller knife (8), the top end of the roller knife (8) is connected to the end of a thin shaft rod (7) through a support plate (22), the thin shaft rod (7) is located inside the suction catheter (1), the tail end of the thin shaft rod (7) is fixedly connected to a wing plate (20), and the thin shaft rod (7) is connected to the rotating shaft of the tail base joint (6) through the wing plate (20); There are five types of the suction catheter (1), namely a straight tube type and four bottom-bent types. The bottom-bent type has four bent tube bodies with the bottom ends facing in four directions, front, back, left, and right. The roller knife (8) in the bottom-bent tube body is located in the tube body above the bend. The tailstock joint (6) is composed of an externally threaded sleeve (9), a rotating shaft (10), a hexagonal knob sleeve (12), a clamping plate (14), an internal hexagonal locking screw (15), a motor docking sleeve (16), a sealing bearing (17) and a locking ring (18). The externally threaded sleeve (9) is a cylindrical tube body with an external thread on the front end. The externally threaded sleeve (9) is screwed into the top end of the suction chamber box (2) and communicates with the internal cavity thereof. The suction chamber box (2) is A hexagonal knob sleeve (12) is fixedly connected to the outside of a square externally threaded sleeve (9), a notch (13) is provided at the top of the externally threaded sleeve (9), and a clamping plate (14) is fixedly connected to the side walls on both sides of the notch (13) of the externally threaded sleeve (9), the two clamping plates (14) are parallel to each other, and the two clamping plates (14) are locked by a hexagonal locking screw (15), a partition is provided at the hexagonal knob sleeve (12) in the externally threaded sleeve (9), an axial hole is provided at the center of the partition, a rotating shaft (10) is inserted into the axial hole, and the side walls of the rotating shaft (10) are provided with external threads, and sealed bearings (17) are sleeved on the rotating shaft (10) above and below the partition, and a motor docking sleeve (16) fixedly connected to the top of the rotating shaft (10) is provided at the top of the upper sealed bearing (17), and a docking groove (19) is provided inside the motor docking sleeve (16), which is plugged into the power shaft end of the craniotomy power system motor (23) through the docking groove (19), and the lower sealed bearing ( The lower end of the rotating shaft (10) is provided with a locking ring (18) which is screwed into the rotating shaft (10). The end of the rotating shaft (10) extending below the locking ring (18) is provided with a duckbill notch (11). The end of the duckbill notch (11) is provided with an axial hole. The diameter of the axial hole is the same as the diameter of the thin shaft (7). The tail end of the thin shaft (7) is inserted into the axial hole of the duckbill notch (11) at the front end of the rotating shaft (10). The duckbill notch (11) clamps and fixes the wing plate (20) at the tail end of the thin shaft (7).

2. The lower drum type suction cutting pliers according to claim 1, characterized in that: The diameter of the roller knife (8) inside the suction duct (1) is the same as its inner diameter.

3. The lower drum type suction cutting pliers according to claim 1, characterized in that: The docking groove (19) of the motor docking sleeve (16) has the same shape as the power shaft end of the connected craniotomy power system motor (23).

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