Suction stripping electric cutting coagulation knife for endoscopic surgery

Abstract

The utility model relates to the technical field of medical instruments. The utility model relates to an aspirating stripping electric cutting coagulation knife for endoscopic surgery, which comprises an electric knife and is characterized by further comprising an aspirating pipeline, an upper inclined incision and a lower inclined incision which are arranged up and down are arranged at the head end of the aspirating pipeline, the upper inclined incision is inclined upwards from front to back, and the lower inclined incision is inclined downwards from front to back; the electrotome is of a sheet-shaped structure, the electrotome is arranged at the head of the suction pipeline, and the electrotome is located in the area between the upper oblique incision and the lower oblique incision; the front end of the electrotome is located outside the suction pipeline, and the front end of the electrotome is a cutting edge part. The electrotome is optimized to be provided with the cutting edge part, sharp cutting can be conveniently achieved, the upper oblique incision and the lower oblique incision which are arranged up and down are formed in the head end of the suction pipe, the opening size of a suction opening can be conveniently increased while the outer diameter of the suction pipe is not changed, and the suction effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely is treatment towel. BACKGROUND

[0002] Endoscopic surgery develops rapidly and has become the main clinical surgical method, including laparoscopic surgery, endoscopic surgery, ear endoscopic surgery and the like. The biggest challenge in endoscopic surgery in otolaryngology is in the narrow anatomical channel, one hand holds the endoscope, and all surgical operations need to be completed independently by the other hand.

[0003] Due to the anatomical characteristics of the ear, nose, throat and pharynx, more instruments cannot be simultaneously introduced into the surgical area. Therefore, the endoscopic surgical instrument in otolaryngology needs to have multiple functions in the same instrument, which is simple, light and suitable for single-handed independent operation.

[0004] Tissue dissection, electrosurgery, electrocoagulation and suction are the most common and basic surgical actions in surgical operation, which run through the entire process of surgical operation.

[0005] However, the current endoscopic surgical instrument has the following problems:

[0006] 1. The suctionable electrocoagulation cutter for endoscope does not have a blade-like structure and cannot complete sharp cutting.

[0007] 2. The device such as an electric hook for endoscope can complete sharp cutting, but cannot complete suction action at the same time. In use, suction device must be used at the same time to complete the operation. In some narrow space, it is more inconvenient to operate.

[0008] 3. When completing electrosection and electrocoagulation, it is necessary to suck and remove blood and exudate to obtain a clean and clear surgical field, and it is also necessary to suck and remove smoke generated by electrosection and electrocoagulation in time, but the current electrosection and electrocoagulation with suction surgical instrument, the hole in the wall is easy to be blocked by blood scab, and the scab needs to be cleaned repeatedly during the operation, which affects the efficient and safe implementation of the operation. INVENTION CONTENTS

[0009] In view of the problems existing in the prior art, the utility model provides a suction dissection electrocoagulation cutter for endoscopic surgery to solve at least one of the above technical problems.

[0010] In order to achieve the above purpose, the utility model provides a suction dissection electrocoagulation cutter for endoscopic surgery, which comprises an electric knife, characterized in that it further comprises a suction pipeline, the head end of the suction pipeline is provided with two upper and lower upper and lower bevel incisions, the upper bevel incision is inclined upward from front to back, and the lower bevel incision is inclined downward from front to back.

[0011] The electric knife is provided on the head of the suction pipeline, and the front end of the electric knife is located between the upper bevel cut and the lower bevel cut.

[0012] The front end of the electric knife is located outside the suction pipeline, and the front end of the electric knife is a blade part.

[0013] The electric knife is provided on the head of the suction pipeline, and the front end of the electric knife is located between the upper bevel cut and the lower bevel cut.

[0014] Further preferably, the inner walls on the left and right sides of the head end of the suction pipeline are provided with sliding grooves for sliding the electric knife, and the sliding grooves are fixedly connected with the electric knife.

[0015] The electric knife is provided on the head of the suction pipeline, and the front end of the electric knife is located between the upper bevel cut and the lower bevel cut.

[0016] Further preferably, the angle between the upper bevel cut and the central axis of the head is not greater than 25° and not less than 15°.

[0017] The angle between the lower bevel cut and the central axis of the head is not greater than 25° and not less than 15°.

[0018] Further preferably, the suction pipeline is detachably connected with a manual adjusting valve.

[0019] The size of the suction opening can be adjusted.

[0020] Further preferably, the manual adjusting valve comprises a valve body, a passage is formed in the center of the valve body, and a valve plate for controlling the opening and closing of the passage is rotatably connected in the valve body.

[0021] A gear is rotatably connected to the outside of the valve body, the gear is connected with the valve plate, and the central axis of the gear coincides with the rotation central axis of the valve plate.

[0022] A pushing piece is slidably connected to the outside of the valve body, a straight tooth part engaged with the gear is arranged on the pushing piece, and a limit limiting block for limiting the sliding direction of the pushing piece is arranged on the outside of the valve body.

[0023] Further preferably, the limit limiting block and the two ends of the pushing piece are magnetically attached.

[0024] Further preferably, the suction pipeline comprises the head and a main pipe part arranged in front and back, the connection between the head and the main pipe part is an obtuse angle structure, and the axial angle between the head and the main pipe part is 15°.

[0025] The axial length of the head is 5mm;

[0026] The length of the electric knife extending out of the head is 5mm.

[0027] Compared with the prior art, the utility model has the beneficial effects that:

[0028] The utility model realizes the integration of multiple functions of electric coagulation, cutting, suction and stripping, and is suitable for narrow space during endoscopic surgery. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a partial sectional view of the electric knife of the embodiment 1 of the utility model;

[0030] Figure 2 It is a partial structural schematic view of the electric knife of the embodiment 1 of the utility model;

[0031] Figure 3 It is a sectional view of the manual regulating valve of the embodiment 2 of the utility model;

[0032] Figure 4 It is a top view of the manual regulating valve of the embodiment 2 of the utility model.

[0033] Wherein: 1 is electric knife, 2 is suction pipeline, 21 is head, 22 is main pipe part, 23 is upper bevel, 24 is lower bevel, 31 is valve body, 32 is valve sheet, 33 is poking piece, 34 is guide rod, 35 is gear, 36 is limit limit block. DETAILED DESCRIPTION

[0034] The utility model will be further described below in combination with the drawings.

[0035] Referring to Figures 1 to 2 , embodiment 1: a suction stripping electric cutting coagulation knife for endoscopic surgery, including electric knife 1, still including a suction pipeline 2, the head end of suction pipeline 2 is provided with two upper and lower settings upper bevel 23 and lower bevel 24, and the upper bevel 23 is inclined upwards from front to back, and the lower bevel 24 is inclined downwards from front to back;Electric knife 1 is in sheet structure, and electric knife 1 is arranged in the head 21 of suction pipeline 2, and electric knife 1 is located between the region of upper bevel 23 and lower bevel 24;The front end of electric knife 1 is located outside suction pipeline 2, and the front end of electric knife 1 is blade part.The utility model is provided with blade part on electric knife 1, which is convenient for realizing sharp cutting, and the head end of suction pipeline 2 is provided with two upper and lower settings upper bevel 23 and lower bevel 24, which is convenient for increasing the opening size of suction port while not changing the outer diameter of suction pipe, and guaranteeing the suction effect.

[0036] The angle between the upper bevel cut 23 and the central axis of the head 21 is not greater than 25° and not less than 15°; the angle between the lower bevel cut 24 and the central axis of the head 21 is not greater than 25° and not less than 15°.

[0037] The inner walls on the left and right sides of the head end of the suction pipe 2 are provided with sliding grooves for sliding the electrotome 1, and the sliding grooves are fixedly connected with the electrotome 1, facilitating the assembly of the electrotome 1.

[0038] The suction pipe 2 comprises a head 21 and a main pipe 22 arranged in front of and behind each other, and the connection between the head and the main pipe is an obtuse angle structure, the axial angle between the head 21 and the main pipe 22 is 15°, the axial length of the head 21 is 5mm, and the length of the electrotome 1 extending out of the head 21 is 5mm. The electrotome 1 is connected with a wire. An opening for the wire extending out is arranged on the main pipe 22, and the opening and the wire are connected through sealing glue. A perforation for the wire to pass through is arranged on the side wall of the suction pipe.

[0039] Referring to Figure 3 and Figure 4 , in specific embodiment 2, on the basis of specific embodiment 1, a manual regulating valve is detachably connected with the suction pipe 2, facilitating the adjustment of the size of the suction opening. The manual regulating valve comprises a valve body 31, a passage is arranged in the center of the valve body 31, a valve sheet 32 for controlling the opening and closing of the passage is rotatably connected in the valve body 31, a gear 35 is rotatably connected to the outer side of the valve body, the central axis of the gear 35 coincides with the rotation central axis of the valve sheet 32, a poking sheet 33 is slidably connected to the outer side of the valve body, a straight tooth part for engaging with the gear 35 is arranged on the poking sheet 33, and limit limit blocks 36 for limiting the sliding direction of the poking sheet 33 are arranged on the outer side of the valve body. The limit limit blocks 36 are magnetically adsorbed to the two ends of the poking sheet 33. The valve body 31 comprises a front valve body and a rear valve body arranged in front of and behind each other in the axial direction, and the valve sheet 32 is rotatably arranged between the front valve body and the rear valve body. Guide rods 34 are installed on the front valve body and the rear valve body. Guide holes for slidably connecting the guide rods 34 are arranged on the poking sheet 33. The limit limit blocks are provided with two, and the two limit limit blocks are respectively installed on the front valve body and the rear valve body. And guide rods are installed on the two limit limit blocks. The upper and lower ends of the valve sheet are provided with shaft parts, the shaft parts are clamped between the front valve body and the rear valve body, and sealing rings are sleeved on the shaft parts. The shaft part on the upper end of the valve sheet is fixed with the gear. A strip-shaped protrusion is arranged on the poking sheet, facilitating the poking.

[0040] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection scope of the present application.

Claims

1. An attractable dissection electrotome for endoscopic surgery comprising an electrotome, characterized in that, The suction pipeline is provided with two upper bevels and a lower bevel at the head end of the suction pipeline, the upper bevels are inclined upward from front to back, and the lower bevel is inclined downward from front to back; The electric knife is in a sheet structure, is arranged at the head of the suction pipeline, and is located between the upper bevel and the lower bevel; The front end of the electric knife is located outside the suction pipeline, and the front end of the electric knife is a blade part.

2. The suction dissection electrotome for endoscopic surgery according to claim 1, characterized in that: The inner walls of the left and right sides of the head end of the suction pipeline are provided with sliding grooves for sliding the electric knife, and the sliding grooves are fixedly connected with the electric knife.

3. The suction dissection electrotome for endoscopic surgery according to claim 1, characterized in that: The suction pipeline is detachably connected with a manual regulating valve.

4. The suction dissection electrotome for endoscopic surgery according to claim 3, characterized in that: The manual regulating valve comprises a valve body, a channel is formed in the center of the valve body, and a valve plate for controlling the opening and closing of the channel is rotatably connected in the valve body; A gear is rotatably connected to the outer side of the valve body, the gear is connected with the valve plate, and the central axis of the gear coincides with the rotation central axis of the valve plate; A pushing plate is slidably connected to the outer side of the valve body, the pushing plate is provided with a straight tooth part engaged with the gear, and the outer side of the valve body is provided with limit limit blocks for limiting the sliding direction of the pushing plate.

5. The suction dissection electrotome for endoscopic surgery according to claim 4, characterized in that: The limit limit blocks are magnetically adsorbed to the two ends of the pushing plate.

6. The suction dissection electrotome for endoscopic surgery according to claim 1, characterized in that: The suction pipeline comprises the head and a main pipe part arranged in front and back, the connection part of the head and the main pipe part is an obtuse angle structure, and the included angle between the head and the main pipe part is 15°; The axial length of the head is 5 mm; The length of the electric knife extending out of the head is 5 mm.

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