CN218010144U - Implantation device for tympanic membrane tube - Google Patents

Abstract

The utility model discloses a tympanic membrane tube implanting device, which comprises an outer sleeve and an inner sleeve, wherein a cutting knife component is arranged inside the inner sleeve; the cutter component can move back and forth along the axial direction; the placing end of the inner sleeve is provided with a fastening head, and the holding end is provided with a pushing component; the incision knife component comprises a knife body, the knife body comprises a cutting rod body and a knife head, the knife head is arranged at one end of the cutting rod body, and the other end of the cutting rod body is connected with the pushing component; the drainage tube is sleeved on the outer side of the cutting rod body; one end of the drainage tube is symmetrically provided with the movable leaves, the fastening head fastens the movable leaves on the side wall of the cutter head before the pushing assembly pushes the cutter body, and the tip end of the cutter head is exposed on the outer side of the fastening head; after the pushing assembly pushes the cutter body to move a certain distance away from the handheld end, the movable leaves turn outwards, and the tail end of the drainage tube is T-shaped. The utility model discloses make and put the pipe process and become simple, can shorten operation time, improve the operation effect.

Description

Implantation device for tympanic membrane tube

Technical Field

The utility model belongs to the technical field of medical treatment auxiliary instrument, concretely relates to tympanic membrane puts a tub implanter.

Background

Secretory otitis media is a common disease and a frequently encountered disease of ears, and after medicine conservation treatment and tympanocentesis treatment are ineffective, a tympanum catheter is generally required to solve the problems of effusion and negative pressure of the middle ear. Most of drainage tubes of the currently clinically applied tympanic membrane placing tubes are made of silica gel, the texture is soft, the operation in the placing process has certain difficulty, the risks of side injuries such as tympanic membrane injury, ossicle dislocation, hemorrhage and the like are increased, and the operation time is prolonged.

The invention patent application No. CN201880071528.4 discloses a tympanostomy tube placement device having a shaft with a needle having a tip configured to pierce the tympanic membrane. The retainer is on the needle and includes, for example, four fingers spaced from the axis and extending axially at 90 circumferential intervals. The retainer is movable from a distal position in which the retainer is pressed radially inward against the tube distal flange protrusion to retain the distal flange in the folded position to a proximal position in which the tube distal flange is free to spring radially out to the deployed position. The retainer fingers extend through the tube proximal flange passage and press the tube distal flange inwardly while leaving the distal facing surface of the proximal flange exposed radially outwardly from the retainer. Thus, the proximal flange always has its final deployed configuration, may act as a physical stop member against the tympanic membrane, and may also provide a visualization effect for the surgeon as the proximal flange extends radially outward from the shaft.

The utility model patent with application number CN201720045376.3 discloses a tympanic membrane opens puts a tub ware, including core bar, outer tube and the drainage tube of ventilating, the core bar is worn to establish in the outer tube, and the drainage tube suit of ventilating is on the preceding tip of core bar, integrated into one piece has the cutter on the preceding terminal surface of core bar, be provided with the handle of gripping on the rear end of core bar, still be provided with one section screw thread section on the rear end of core bar, just propulsion nut has been installed to the spiro union in the screw thread section, be provided with compression spring between propulsion nut and the outer tube rear end, still be provided with positioner between outer tube and the core bar. By adopting the structure, the operation is convenient and the failure rate of the operation can be effectively reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure, easy and simple to handle, the reducible operation time of reducible operation, improve the drum membrane and put tub implantation device of operation effect.

The utility model discloses a technical scheme who realizes that above-mentioned purpose takes does:

the tympanic membrane tube implanting device comprises an outer sleeve and an inner sleeve which are coaxially sleeved, wherein a cutting knife assembly is arranged inside the inner sleeve; the cutter component can move back and forth along the axial direction of the inner sleeve; one end of the inner sleeve is an embedded end, the other end of the inner sleeve is a handheld end, the embedded end is provided with a conical fastening head, and the handheld end is provided with a pushing assembly;

the incision knife assembly comprises a knife body, the knife body is matched with the drainage tube, the knife body comprises a cutting rod body and a knife head, the cutting rod body is of a slender rod-shaped structure, the knife head is arranged at one end of the cutting rod body, the knife head is of a conical structure, and the tip end of the knife head is used for incising the tympanic membrane; one end of the cutting rod body, which is far away from the cutter head, is connected with the pushing assembly, and the pushing assembly can push the cutter body to move back and forth;

the drainage tube is sleeved on the outer side of the cutting rod body; the tail end of the drainage tube close to the placing end is symmetrically provided with the movable leaves, the movable leaves are fastened on the side wall of the cutter head by the fastening head before the cutter body is pushed by the pushing assembly, the tail end of the drainage tube is conical, and the tip end of the cutter head is exposed outside the fastening head; after the pushing assembly pushes the cutter body to move a certain distance away from the handheld end, the movable leaves turn outwards, and the tail end of the drainage tube is T-shaped.

By adopting the technical scheme, the tympanic membrane tube implanting device extends into the external auditory canal, and the tail end of the outer sleeve is arranged on the surface of the external auditory canal close to the tympanic membrane; the cutter assembly in the middle of the inner sleeve can be driven by the pushing assembly to extend and retract along the axis. The knife body can cut the tympanic membrane under the pushing action of the pushing assembly, and the tip of the drainage tube, which is far away from the handheld end of the inner sleeve, penetrates through the tympanic membrane along with the knife head on the cutting rod body and enters the middle ear cavity. Therefore, the movable leaves on the drainage tube are separated from the fastening head of the inner sleeve placing end, so that the tail end of the drainage tube is changed into a T shape from a cone shape, and the drainage tube entering the tympanic cavity realizes the fixation of the drainage tube because the movable leaves at the head part of the drainage tube are opened. And then, taking out the outer sleeve, the inner sleeve, the cutter body and other components, and realizing the tube placement of the tympanic membrane. The whole operation process is finished at one time and is more accurate, so that the whole tube placing process is simple, the operation time is greatly shortened, the operation effect is improved, and the operation time is shortened.

According to one embodiment of the utility model, the fastening head comprises a plurality of fastening claws, and the fastening claws are arranged in one-to-one correspondence with the movable leaves; the movable leaf comprises an inward side surface close to the cutter head and an outward side surface back to the cutter head; the outward side surface is provided with a sliding groove, the fastening claw is provided with a convex part, and the convex part is connected with the sliding groove in a sliding manner.

A plurality of fastening claws encircle the end that sets up at the fastening head, and the bellying sets up towards one side of cutter body on fastening claw. Therefore, after the cutter assembly is installed and the pushing assembly is not touched, the tight fit between the fastening claw and the movable blade can be ensured through the sliding connection between the bulge part and the sliding groove, and the falling off is prevented; triggering the in-process that promotes the subassembly and drive the incision sword subassembly and remove to the middle ear chamber by the external auditory canal, utilizing the setting of bellying and spout to guide the removal of drainage tube, preventing that the drainage tube is rotatory or squint, can prevent the drainage tube dislocation, stability is good, and the position is accurate when can guaranteeing the drainage tube and put into the middle ear chamber.

According to one embodiment of the utility model, a first spring piece is embedded in the drainage tube near the end of the placement end, and the first spring piece is partially embedded in the movable leaves; a second spring piece is embedded in the fastening claw, and the second spring piece part is embedded at the embedded end; the first spring piece is opposite to the second spring piece in the power accumulation direction.

Therefore, through the matching of the first spring leaf and the second spring leaf, before the pushing component is triggered, the fastening claw can fasten the movable leaflet in the drainage tube by utilizing the elasticity of the second spring leaf, and the conical shape of the tail end of the drainage tube is kept; after the pushing assembly is triggered, the drainage tube moves synchronously along with the cutter body, and the movable leaf is separated from the fastening claw, so that under the action of the elastic force of the first spring piece, the movable leaf is turned outwards, the tail end of the drainage tube is converted into a T shape, and the drainage tube is smoothly fixed. In addition, before touching the pushing component, because the power storage direction of the first spring leaf is opposite to that of the second spring leaf, the tightness of the matching between the drainage tube and the inner sleeve can be ensured, the drainage tube, the cutter body and other components are effectively prevented from falling off, and the smooth operation is ensured.

According to one embodiment of the utility model, the side wall of the middle part of the cutting rod body is provided with a first flange which can be matched with one end of the drainage tube far away from the movable leaflet; the one end of keeping away from the tool bit on the cutting body of rod is equipped with the second flange, and the second flange is connected with the inner wall sliding of inner skleeve. The inner wall of inner skleeve is equipped with the spacing ring, and the cutting body of rod cover is established in the spacing ring to the spacing ring is located between first flange and the second flange.

From this, through the cooperation of second flange and spacing ring, can realize spacingly promoting the cutter body and remove the in-process, prevent that tool bit and drainage tube are excessive to stretch into the middle ear intracavity, improve the security that the pipe was put to the tympanic membrane.

According to the utility model discloses an embodiment, promote the subassembly include with the push rod of the coaxial setting of the cutting body of rod, the one end of push rod is equipped with first fixed plate, the other end of push rod is equipped with the second fixed plate, first fixed plate sets up with the second flange relatively to be equipped with compression spring between first fixed plate and the second flange, the one side of keeping away from first fixed plate on the second fixed plate is equipped with and links up the recess.

From this, the simple structure of pushing the subassembly, with the simple easy operation of the cooperation of cutter subassembly to the cooperation is accurate. Through the cooperation of compression spring, can provide the cushioning effect at the in-process that the push rod promoted the cutter body and remove to utilize the elasticity after the spring compression to realize promoting the reseing of subassembly. The second fixing plate is provided with a connecting groove which can be used for being matched with an external handheld assembly, so that the use comfort of the implanter is improved.

According to the utility model discloses an embodiment, the one side that is close to first fixed plate on the second fixed plate is equipped with the light.

From this, put the in-process of pipe at the tympanic membrane and pass through the illumination of light, enlarge the inside visual scope of duct, improve the precision of cutter body cutting, guarantee the security that the pipe was put to the tympanic membrane.

According to one embodiment of the utility model, a buffer gasket is arranged on one side of the movable leaf back to the cutter head; the tail end of the outer sleeve close to the placing end is provided with a buffer gasket.

Therefore, when the movable leaf or the outer sleeve is in contact with the tympanic membrane, the buffer can be realized through the buffer gasket, the impact on the tympanic membrane is reduced, and the comfort of a patient is improved.

The utility model discloses owing to set up the activity leaflet at the end of drainage tube, can be after the drainage tube gets into the well ear chamber, change the terminal shape of drainage tube through the activity leaflet to practice the fixed of drainage tube, make the operation process go into at one stroke, more accurate, reduce the degree of difficulty that the pipe was put to the tympanic membrane, can shorten the operation time, improve the operation effect, the security improves.

Drawings

FIG. 1 is a schematic diagram of an exploded view of a tympanic membrane insertion instrument according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of the engaged inner structure of the tympanic tube implanter shown in FIG. 1;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is a cross-sectional view of the inner sleeve and drainage tube in the tympanic tube implanter of FIG. 1 in a mated configuration;

FIG. 5 is a schematic view of the knife assembly and pusher assembly of the tympanic tube implanter of FIG. 1;

fig. 6 is a partially enlarged view of the portion B in fig. 5.

Reference numerals: an outer sleeve 10; a positioning flange 11; a cushion pad 12; an inner sleeve 20; an input terminal 21; a handheld end 22; a retainer ring 23; a fastening head 24; a fastening claw 25; a slitting knife assembly 30; cutting the rod body 31; a first flange 32; a second flange 33; a cutter head 34; a boss 35; a second spring plate 36; a drain tube 40; a movable leaf 41; a chute 42; a first spring piece 43; a pushing assembly 50; a push rod 51; a first fixing plate 52; a second fixing plate 53; an engaging groove 54; a compression spring 55; and an illumination lamp 56.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to the following detailed description and accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Fig. 1-6 schematically illustrate a tympanostomy tube implanter in accordance with an embodiment of the present invention. As shown, the device comprises an outer sleeve 10 and an inner sleeve 20 which are coaxially sleeved, and a cutting knife assembly 30 is arranged inside the inner sleeve 20. One end of the inner sleeve 20 is an insertion end 21 for bringing the incision knife assembly 30 into the external auditory canal, the other end of the inner sleeve 20 is a holding end 22, the holding end 22 is provided with a pushing assembly 50, and the pushing assembly 50 is matched with the incision knife assembly 30 for driving the incision knife assembly 30 to move along the axis of the inner sleeve 20. The tail end of one side, close to the placing end 21, of the outer sleeve 10 is provided with a positioning flange 11, after the outer sleeve 10 enters the external auditory canal, the positioning flange 11 can be attached to the tympanic membrane, and a buffer gasket 12 made of flexible materials such as silica gel is arranged on one surface, outwards arranged, of the positioning flange 11, so that the comfort level of the positioning flange 11 when contacting with the tympanic membrane is improved.

The insertion end 21 of the inner sleeve 20 is provided with a tapered fastening head 24 for cooperation with the incision knife assembly 30. The incision knife assembly 30 includes a knife body, the knife body includes a cutting rod 31 and a knife head 34, the cutting rod 31 is a slender rod-shaped structure, the knife head 34 is disposed at one end of the cutting rod 31, the knife head 34 is a cone-shaped structure, and the tip of the knife head 34 is used for incising the tympanic membrane. The end of the cutting rod 31 away from the cutting head 34 is connected to a pushing assembly 50, and the pushing assembly 50 can push the cutter body to move back and forth.

The cutting rod 31 has a first flange 32 at its middle, and a second flange 33 at the end of the cutting rod 31 away from the cutting head 34, wherein the second flange 33 abuts against the inner wall of the inner sleeve 20. The inner sleeve 20 is provided with a limiting ring 23 on the inner wall, and the first flange 32 and the second flange 33 are respectively arranged at two ends of the limiting ring 23. The cutting rod 31 can drive the second flange 33 to slide along the inner wall of the inner sleeve 20 under the driving of the pushing assembly 50. When the edge of the first flange 32 abuts against the stop collar 23, the cutting head 34 at the end of the cutting rod 31 is located at the port of the insertion end 21 of the inner sleeve 20, and when the edge of the second flange 33 abuts against the stop collar 23, the cutting head 34 at the end of the cutting rod 31 can extend out of the port of the insertion end 21 of the inner sleeve 20 and is exposed out of the inner sleeve 20 and the outer sleeve 10.

Through the cooperation of second flange 33 and spacing ring 23, can realize spacingly in the promotion cutter body removal in-process, prevent that tool bit 34 and drainage tube 40 excessively stretch into the middle ear intracavity, improve the security that the tympanic membrane put the pipe.

The pushing assembly 50 includes a pushing rod 51 coaxially disposed with the cutting rod 31, a first fixing plate 52 is disposed at one end of the pushing rod 51, a second fixing plate 53 is disposed at the other end of the pushing rod 51, the first fixing plate 52 is disposed opposite to the second flange 33, a compression spring 55 is disposed between the first fixing plate 52 and the second flange 33, and a connecting groove 54 is disposed on one side of the second fixing plate 53 away from the first fixing plate 52.

Through the cooperation of the compression spring 55, a buffer effect can be provided in the process that the push rod 51 pushes the cutter body to move, and the reset of the push assembly 50 is realized by the elastic force after the spring is compressed. The second fixing plate 53 is provided with a connecting groove 54 for matching with an external handheld component, so that the use comfort of the implanter is improved.

The outer side of the cutter body is also matched with a drainage tube 40, and the drainage tube 40 is sleeved on the outer side of the cutting rod body 31. The cutting rod 31 is driven by the pushing assembly 50 to move, the first flange 32 on the cutting rod 31 can abut against one end of the drainage tube 40 far away from the movable leaflet 41, and the drainage tube 40 is pushed to move towards the direction far away from the limiting ring 23 along with the cutting rod 31.

The drainage tube 40 is symmetrically provided with movable blades 41 at the end close to the placing end 21, before the pushing assembly 50 pushes the cutter body, the fastening head 24 fastens the movable blades 41 on the side wall of the cutter head 34, the end of the drainage tube 40 is conical, and the tip of the cutter head 34 is exposed outside the fastening head 24; after the pushing assembly 50 pushes the cutter body to move a certain distance away from the handheld end 22, the movable leaves 41 turn outwards, and the tail end of the drainage tube 40 is T-shaped.

Specifically, the fastening head 24 includes a plurality of fastening claws 25, and the fastening claws 25 are provided in one-to-one correspondence with the movable blades 41. The movable leaf 41 includes an inward side proximate the cutting head 34 and an outward side facing away from the cutting head 34; the outward side surface is provided with a sliding groove 42, the fastening claw 25 is provided with a convex part 35, and the convex part 35 is connected with the sliding groove 42 in a sliding manner.

A plurality of fastening claws 25 are circumferentially provided at the distal end of the fastening head 24, and a projection 35 is provided on the fastening claw 25 toward the side of the cutter body. Thus, after the incision knife assembly 30 is installed, when the pushing assembly 50 is not touched, the tight fit between the fastening claw 25 and the movable blade 41 can be ensured through the sliding connection between the protruding part 35 and the sliding groove 42, and the falling off is prevented; in the process that the trigger pushing component 50 drives the incision knife component 30 to move from the external auditory meatus to the middle ear cavity, the bulge 35 and the chute 42 are arranged to guide the movement of the drainage tube 40, so that the drainage tube 40 is prevented from rotating or deviating, the drainage tube 40 can be prevented from dislocation, and the accurate position of the drainage tube 40 when being placed into the middle ear cavity is ensured.

A first spring plate 43 is embedded in the drainage tube 40 close to the tail end of the placing end 21, and the first spring plate 43 is partially embedded in the movable leaflet 41; the fastening claw 25 is internally embedded with a second spring piece 36, and the part of the second spring piece 36 is embedded at the embedded end 21; the first spring piece 43 is opposed to the second spring piece 36 in the accumulating direction.

By the cooperation of the first spring plate 43 and the second spring plate 36, the movable leaflet 41 can be fastened therein by the fastening claw 25 using the elastic force of the second spring plate 36 before the pushing member 50 is actuated, and the tapered shape of the distal end of the drainage tube 40 is maintained. In addition, the first spring plate 43 is opposite to the second spring plate 36 in the force accumulation direction, so that the bulge 35 on the fastening claw 25 is tightly attached to the sliding groove 42 on the movable vane 41, the drainage tube 40 can be effectively prevented from falling off, and the stability of the device is improved.

After the pushing assembly 50 is triggered, the drainage tube 40 moves synchronously with the knife body, and the movable leaf 41 is separated from the fastening claw 25, so that under the action of the elastic force of the first spring plate 43, the movable leaf 41 is turned outwards, the tail end of the drainage tube 40 is changed into a T shape, and the fixation of the drainage tube 40 is smoothly realized. The side of the movable leaf 41 facing away from the cutter head 34 is provided with a buffer gasket 12 for improving the comfort of the patient.

In addition, in the pushing assembly 50, the illuminating lamp 56 is arranged on one side, close to the first fixing plate 52, of the second fixing plate 53, so that the external auditory canal can be illuminated in the process of placing the tympanic membrane tube, the visible range inside the auditory canal is enlarged, the cutting accuracy of the cutter body is improved, and the safety of the tympanic membrane tube is ensured.

The tympanostomy tube implanter in the embodiment is used for extending into the external auditory canal, and the tail end of the outer sleeve 10 is arranged on the surface of the external auditory canal close to the tympanic membrane; the incision knife assembly 30 in the middle of the inner sleeve 20 is axially retractable under the drive of the pushing assembly 50. Wherein, the knife body can cut the tympanic membrane under the pushing action of the pushing component 50, and the end of the drainage tube 40 far away from the holding end 22 of the inner sleeve 20 passes through the tympanic membrane along with the knife head 34 on the cutting rod body 31 and enters the middle ear cavity. In this way, the movable leaves 41 of the drainage tube 40 are separated from the fastening head 24 of the insertion end 21 of the inner sleeve 20, so that the end of the drainage tube 40 is transformed from a taper shape to a T shape, and the drainage tube 40 entering the tympanic cavity is fixed by the opening of the movable leaves 41 of the head of the drainage tube 40. And then, taking out the outer sleeve 10, the inner sleeve 20, the cutter body and other components to realize the tympanic membrane catheterization. In the process that the cutter body is withdrawn from the external auditory canal outwards, the drainage tube 40 is driven by the cutter head 34 and the cutting rod body 31 to move towards the external auditory canal due to inertia, and is finally fixed on the tympanic membrane under the matching action of the turned movable leaflet 41 and the tympanic membrane. The whole operation process is finished at one step and is more accurate, so that the whole catheterization process is simple, the operation time is greatly shortened, the operation effect is improved, and the operation time is reduced.

The conventional operations in the operation steps of the present invention are well known to those skilled in the art and will not be described herein.

The above-mentioned embodiment is to the technical solution of the present invention has been described in detail, it should be understood that the above is only the specific embodiment of the present invention, not used for limiting the present invention, any modification, supplement or similar mode replacement etc. that the principle scope of the present invention is in should be included in the protection scope of the present invention.

Claims (6)

1. The tympanic membrane tube implanting device comprises an outer sleeve (10) and an inner sleeve (20) which are coaxially sleeved, wherein a cutting knife assembly (30) is arranged inside the inner sleeve (20); the cutter assembly (30) is capable of moving back and forth along the axial direction of the inner sleeve (20); one end of the inner sleeve (20) is an insertion end (21), the other end of the inner sleeve (20) is a handheld end (22), the insertion end (21) is provided with a conical fastening head (24), and the handheld end (22) is provided with a pushing assembly (50);

it is characterized in that the preparation method is characterized in that,

the incision knife assembly (30) comprises a knife body, the knife body is matched with the drainage tube (40), the knife body comprises a cutting rod body (31) and a knife head (34), the knife head (34) is arranged at one end of the cutting rod body (31), the knife head (34) is of a conical structure, and the tip end of the knife head (34) is used for incising the tympanic membrane; one end of the cutting rod body (31) far away from the cutter head (34) is connected with the pushing assembly (50), and the pushing assembly (50) can push the cutter body to move back and forth;

the drainage tube (40) is sleeved on the outer side of the cutting rod body (31); the tail end of the drainage tube (40) close to the placing end (21) is symmetrically provided with movable sub-blades (41), before the pushing component (50) pushes the cutter body, the fastening head (24) fastens the movable sub-blades (41) on the side wall of the cutter head (34), the tail end of the drainage tube (40) is conical, and the tip of the cutter head (34) is exposed outside the fastening head (24); after the pushing assembly (50) pushes the cutter body to move a certain distance away from the handheld end (22), the movable leaves (41) turn outwards, and the tail end of the drainage tube (40) is T-shaped.

2. The tympanostomy tube implanter according to claim 1, wherein the fastening head (24) comprises a plurality of fastening claws (25), the fastening claws (25) being arranged in one-to-one correspondence with the movable leaves (41); the movable leaf (41) comprises an inward side surface close to the cutter head (34) and an outward side surface back to the cutter head (34); a sliding groove (42) is formed in the outward side face, a protruding portion (35) is arranged on the fastening claw (25), and the protruding portion (35) is connected with the sliding groove (42) in a sliding mode;

a first spring piece (43) is embedded in the drainage tube (40) close to the tail end of the placing end (21), and the first spring piece (43) is partially embedded in the movable leaf (41); a second spring piece (36) is embedded in the fastening claw (25), and the part of the second spring piece (36) is embedded in the embedded end (21); the first spring plate (43) is opposite to the second spring plate (36) in the direction of the force accumulation.

3. The tympanostomy tube implanter according to claim 1, wherein the side wall of the middle part of the cutting rod body (31) is provided with a first flange (32), the first flange (32) being able to cooperate with the end of the drainage tube (40) remote from the movable leaflet (41); a second flange (33) is arranged at one end of the cutting rod body (31) far away from the cutter head (34), and the second flange (33) is connected with the inner wall of the inner sleeve (20) in a sliding manner;

the inner wall of inner sleeve (20) is equipped with spacing ring (23), cutting body of rod (31) cover is established in spacing ring (23), and spacing ring (23) are located first flange (32) with second flange (33) between.

4. The tympanostomy tube implanter according to claim 3, wherein the pushing assembly (50) comprises a push rod (51) coaxially arranged with the cutting rod body (31), a first fixing plate (52) is arranged at one end of the push rod (51), a second fixing plate (53) is arranged at the other end of the push rod (51), the first fixing plate (52) is arranged opposite to the second flange (33), a compression spring (55) is arranged between the first fixing plate (52) and the second flange (33), and an engaging groove (54) is arranged at one side of the second fixing plate (53) far away from the first fixing plate (52).

5. The tympanostomy implanter according to claim 4, wherein an illumination lamp (56) is provided on the second fixation plate (53) on the side close to the first fixation plate (52).

6. The tympanostomy tube implanter of claim 1, wherein a bumper pad (12) is provided on the side of the movable leaflet (41) facing away from the cutting head (34); and a buffer gasket (12) is arranged at the tail end of the outer sleeve (10) close to the placing end (21).

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