CN217525227U - Operating handle and soft tissue expansion device - Google Patents

Abstract

The utility model discloses an operating handle and soft tissue expanding unit, including casing, holding seat, restraint mechanism and expander main part, the holding seat with casing fixed connection, the holding seat is used for detachable to insert the expander main part, restraint mechanism installs on the holding seat, its characterized in that: the dilator is characterized in that the shell is also provided with a grab handle and a handle, one end of the grab handle is fixedly connected with the shell, the other end of the grab handle is a free end, the handle is connected with the shell, one end of the handle is a pressing end, the other end of the handle is in transmission connection with the restraining mechanism, the handle is used for driving the restraining mechanism to adjust the opening degree of an expansion valve of the dilator main body, and the pressing end extends to the free end relative to the length direction of the grab handle; the handle and phimosis expansion device has the advantages of reasonable structure and convenient use.

Description

Operating handle and soft tissue expansion device

Technical Field

The utility model belongs to the technical field of medical equipment, concretely relates to operating handle and soft tissue expansion device.

Background

Phimosis is a common disease of children, and the phimosis of children is caused by that the prepuce cannot be turned backwards to expose the urethral orifice and the glans due to the narrow prepuce opening or the adhesion of the prepuce and the glans. The current phimosis treatment method comprises circumcision treatment and foreskin expansion operation treatment, wherein the circumcision treatment sometimes has difficulty in mastering the optimal excision degree of foreskin due to wound and unformed growth and development of children, meanwhile, the circumcision belongs to traumatic operation and brings great pain to patients, and postoperative recovery period is relatively long and postoperative complications are easy to cause; the foreskin expansion operation is non-invasive, so that foreskin damage is less caused, the daily life and urine of a patient are not affected, the operation pain is small, the patient who receives the foreskin expansion operation does not need to rest in bed, and children and parents can easily accept the operation; or after the foreskin of the child patient is pulled and expanded, the adhesion surface can be fully exposed, and the visual field of treatment of the adhesion surface by a doctor is increased. Prepuce expansion surgery usually adopts phimosis expander to expand phimosis mouth, but phimosis expander among the prior art has the problem of operation or inconvenient use: when the dilator is used for dilation treatment, a doctor needs to pinch the elastic dilation flap fixed on the base to enable the elastic dilation flap to contract, then the dilation flap is placed into the foreskin, and finally the dilation flap is loosened to dilate the foreskin under the elastic acting force of the dilation flap; the expansion valve is usually provided with a plurality of expansion valves, one hand of a doctor needs to tightly hold and fold the expansion valve in the operation process, the other hand is only matched with and guided to be placed in the wrapper, the operation process is not performed at once, and the doctor is often required to hold the expansion valve for a long time, so that the muscle of the hand is easy to fatigue or stiff, and certain inconvenience is brought to the operation of the doctor; particularly, one of the expansion flaps is often ejected without being effectively bound by carelessness, which may damage the foreskin or increase the pain of the patient.

Application number is 202011100791.7, technical scheme among the utility model patent of the name is an operating handle and phimosis foreskin extension fixture has solved above-mentioned problem, but the operating handle who adopts this technical scheme still has certain inconvenient part when operation or use, particularly, when retraining the operation to the expansion lamella of expander main part in this technical scheme, it drives the operation to carry out through the mode that the single thumb indicates to one side, the grasp of operating force degree is mainly undertaken by the thumb promptly, secondly, also skid problem appears relatively easily during the operation of single thumb, and then be not conform to human engineering.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a rational in infrastructure, convenient to use's operating handle and soft tissue extension fixture.

In order to solve the technical problem, the utility model discloses the technical scheme who uses is:

the utility model provides an operating handle, includes casing, holding seat and constraining mechanism, the holding seat with casing fixed connection, the holding seat is used for detachable to insert the expander main part, constraining mechanism installs on the holding seat, still be provided with grab handle and handle on the casing, the one end of grab handle with casing fixed connection, the other end are the free end, the handle with the casing is connected, the one end of handle is for pressing the end, the other end with the constraining mechanism transmission is connected, the handle is used for the drive constraining mechanism adjusts the aperture of the expansion lamella of expander main part, and for the length direction of grab handle, press the end to free end department extends.

As a further improvement of the operating handle, the constraining mechanism includes a sleeve and a plurality of sliding bars, the sliding bars are arranged at intervals along the circumference of the accommodating seat, the sliding bars are connected with the accommodating seat in a sliding manner, the sleeve is sleeved on the accommodating seat, the sleeve is connected with the accommodating seat in a sliding manner, one end of the sleeve is abutted against one end of the sliding bar, and the other end of the sliding bar is pushed out from the accommodating seat when the sleeve moves along the axial direction of the accommodating seat.

As a further improvement of the operating handle, a first return spring is further arranged between the slide bar and the accommodating seat, one end of the first return spring is abutted against the slide bar, the other end of the first return spring is abutted against the accommodating seat, and the first return spring is used for retracting the slide bar into the accommodating seat.

As a further improvement of the operating handle, the handle is further provided with a rotating part and a shifting lever, the shifting lever is fixedly connected with the handle, the rotating part is fixedly connected with the handle or the shifting lever, the rotating part is close to the joint of the shifting lever and the handle, the rotating part is rotatably connected with the shell, the length of the handle is greater than that of the shifting lever, and the shifting lever is abutted against the end part of the sleeve.

As a further improvement of the operating handle, the grip takes the rotating part as a fulcrum and forms an included angle with the grip, a third return spring is further arranged between the grip and the grip, one end of the third return spring is connected with the rotating part, and the other end of the third return spring is connected with the shell.

As a further improvement of the operating handle, the accommodating seat is further provided with a locking mechanism, the locking mechanism is used for locking or unlocking the expander main body on the accommodating seat, the locking mechanism comprises a lock hook, a guide pressing block, a pressing rod and a first toggle key, the first toggle key is in sliding connection with the shell, the lock hook, the guide pressing block and the pressing rod are sequentially arranged in the accommodating seat, the lock hook is rotationally connected with the accommodating seat, the guide pressing block and the pressing rod are both in sliding connection with the accommodating seat, the end part of the guide pressing block is connected with the lock hook, one end of the pressing rod is connected with the guide pressing block, and the other end of the pressing rod is connected with the first toggle key.

As a further improvement of the operating handle, the restriction mechanism is further provided with a restriction adjusting device, the restriction adjusting device is used for adjusting the number of restricted expansion petals on the dilator, the restriction adjusting device comprises a second toggle key and a plurality of columns, one end of each column is fixedly connected with the sleeve, and the other end of each column is a free end; the second shifting key is fixed with the sleeve, the second shifting key extends out of the shell, and the sleeve can rotate relative to the containing seat; when the second toggle key pulls the sleeve to rotate, the free ends of part or all of the cylinders are abutted to the slide bars.

The soft tissue dilation device comprises an operating handle and a dilator main body, wherein the operating handle is the operating handle, and the dilator main body is detachably connected to a containing seat of the operating handle.

As a further improvement of the soft tissue dilation device, the dilator main body comprises a base and a plurality of elastic dilation petals connected with the base, the plurality of elastic dilation petals extend along the axial direction of the containing seat, and the plurality of elastic dilation petals are all positioned on the same side of the base;

elasticity expansion lamella includes expansion claw and elasticity landing leg, elasticity landing leg one end with the base is connected, the other end with the first end that expands the first claw is connected and toward the axis of base is drawn close, the second end of expansion claw arrives the distance of base axis is compared the first end of expansion claw arrives the distance of base axis is long, and is a plurality of the second end of expansion claw centers on the base axis forms the expansion mouth.

As a further improvement of the soft tissue dilating device, the base is provided with a rectangular locking hole, the locking hole is matched with the locking mechanism for locking the dilator body, and after the base is locked with the locking mechanism, each elastic dilating petal corresponds to each sliding strip on the constraining mechanism.

The utility model discloses produced technological effect mainly embodies: the handle of the operating handle is provided with the grip, and one end of the grip is connected with the shell, so that the grip takes the shell as a fulcrum and forms a lever relative to the restraint mechanism, the operating handle is operated and controlled more laborsavingly, and the convenience in use of the operating handle is further improved; furthermore, the inclined pushing type of the operating handle pushed by a single thumb is changed into the handle type of the operating handle pushed by a plurality of fingers, the design of the handle is more in line with the ergonomics, and meanwhile, the handle operated by the plurality of fingers is easier to flexibly control the opening of the expansion valve of the expander main body.

Drawings

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. The same reference numerals are used throughout the drawings to denote the same parts, and the drawings are not intended to be drawn to scale in actual size, with emphasis instead being placed upon illustrating the principles of the invention.

Fig. 1 is a schematic view of an overall structure of an operating handle of the present invention;

fig. 2 is a schematic view of a state of the operation handle of the present invention after being connected to the dilator body;

fig. 3 is a schematic structural view of an operating handle of the present invention with a part of the housing removed;

FIG. 4 is an exploded view of the middle soft component expanding device according to the present invention;

fig. 5 is a schematic sectional view of the middle soft component expanding device according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the illustrated embodiments are not intended to limit the present invention, and in the present embodiments, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and the present invention is described only, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as limited to the present invention.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like as used herein are for illustrative purposes only.

As shown in fig. 1-5, an operating handle comprises a housing 1, a containing seat 2 and a restraining mechanism 4, wherein the containing seat 2 and the housing 1 are fixed by a clamp or a bolt, an opening 21 for placing an expander main body 6 is arranged at the end of the containing seat 2, the expander main body 6 is placed in the containing seat 2 through the opening 21 of the containing seat 2, the containing seat 2 is used for detachably connecting the expander main body 6, and the restraining mechanism 4 is installed in the opening 21 of the containing seat 2. The shell 1 is also provided with a grab handle 11 and a grip 12, one end of the grab handle 11 and the shell 1 are integrally formed through injection molding, and the other end of the grab handle is a free end; the handle 12 is rotatably connected with the housing 1, one end of the handle 12 is a pressing end, the other end of the handle is in transmission connection with the constraint mechanism 4, the handle 12 is used for driving the constraint mechanism 4 to adjust the opening degree of the expansion valve of the expander main body, and the pressing end extends to the free end relative to the length direction of the handle 11. Furthermore, the handle 12 is further provided with a rotating portion 13 and a shifting lever 14, the shifting lever 14 is integrally formed with the handle 12, the rotating portion 13 is fixedly connected with the handle 12 or the shifting lever 14, the rotating portion 13 is close to the joint of the shifting lever 14 and the handle 12, the rotating portion 13 is rotatably connected with the housing 1, the length of the handle 12 is greater than that of the shifting lever 14, and the shifting lever 14 abuts against the end of the sleeve 42. The handle 12 is arranged at the grab handle 11 of the operating handle, and one end of the handle 12 is connected with the shell 1, so that the handle 12 takes the shell 1 as a fulcrum and forms a lever relative to the restraint mechanism 4, and the operating handle is operated and controlled more laborsavingly; furthermore, the oblique pushing type of the operating handle pushed by a single thumb is changed into the handle 12 type of the operating handle pushed by a plurality of fingers, the design of the handle 12 is more in line with the ergonomics, and meanwhile, the handle 12 operated by a plurality of fingers is easier to flexibly control the opening of the expansion valve of the expander main body.

As shown in fig. 1-3, in a preferred embodiment, the grip 12 uses the rotation portion 13 as a fulcrum and forms an angle of about 30 degrees with the grip 11, that is, when the grip 12 forms an angle of 30 degrees with the grip 11, it is easier for the palm and fingers to cooperate with each other to control the operation of the operation handle, for example, the opening of the expansion flap in the expander body is flexibly adjusted by the operation handle; furthermore, a third return spring 15 is disposed between the handle 12 and the grip 11, one end of the third return spring 15 is connected to the rotating portion 13, and the other end is connected to the housing 1, so that the handle 12 can be pulled by the third return spring 15 to be returned after the force applied to the handle 12 is removed.

As shown in fig. 4-5, in a preferred embodiment, the constraining mechanism 4 includes a plurality of sliding bars 41 and sleeves 42, in this embodiment, four sliding bars 41 are provided, the sliding bars 41 are arranged at intervals along the circumferential direction of the inner wall of the opening 21 of the accommodating seat 2, the opening 21 of the accommodating seat 2 is provided with a plurality of sliding grooves cooperating with the sliding bars 41, and the sliding bars 41 are disposed in the sliding grooves, so that the sliding bars 41 are slidably connected with the accommodating seat 2; the sleeve 42 is sleeved on one end of the containing seat 2 opposite to the opening 21, the sleeve 42 is connected with the containing seat 2 in a sliding manner, and the sleeve 42 is abutted against one end of the sliding strip 41; when the constraining mechanism 3 is in use, the sleeve 42 is abutted against the linkage mechanism 5, and the linkage mechanism 5 drives the sleeve 42 to move, when the sleeve 42 moves along the axial direction of the accommodating seat 2 under the pushing of the linkage mechanism 5, because one end of the slide bar 41 is abutted against the sleeve 42, the other end of the slide bar 41 is pushed out from the opening 21 of the accommodating seat 2, the pushed slide bar 41 can squeeze and constrain the expanding valve in an expanding state on the expander main body 6, so that the expanding valve is in a contracting state, and the expander main body 6 can be smoothly placed in a part needing to be expanded; on the contrary, the restraint of the dilator body 6 can be released, and the portion to be dilated can be dilated by the elastic force of the elastic dilation flaps 62 on the dilator body 6.

As shown in fig. 4-5, in a preferred embodiment, a first return spring 43 is further disposed between the slide bar 41 and the accommodating seat 2, one end of the first return spring 43 is fixedly connected to the slide bar 41, the other end of the first return spring 43 is fixedly connected to the accommodating seat 2, and the first return spring 43 is used for retracting the slide bar 41 into the opening 21. Specifically, when the pressing ring 42 pushes the slide bar 41 out of the accommodating base 2, the first return spring 43 is also stretched, and when the expander body 6 is released from the accommodating base 2, the slide bar 41 can be pulled back into the accommodating base 2 by the elastic force of the first return spring 43, thereby further improving the convenience of use of the operating handle. Of course, when the first restoring spring is not used, the end 43 of the slide 41 protruding out of the receptacle 2 can still be pushed back or pushed back into the receptacle 2 manually.

As shown in fig. 4-5, in a preferred embodiment, the housing base 2 is further provided with a locking mechanism 3, the locking mechanism 3 is used for locking the dilator body on the housing base 2 or unlocking the dilator body; the locking mechanism 3 comprises a locking hook 31, a guide pressing block 32, a pressing rod 33 and a first toggle key 38; the locking hook 31, the guide pressing block 32 and the pressing rod 33 are sequentially arranged in the containing seat 2, the locking hook 31 and the containing seat 2 are in rotating connection through a pin shaft, the guide pressing block 32 and/or the pressing rod 33 are/is in sliding connection with the containing seat 2, and the guide pressing block 32 and the pressing rod 33 are located on the same movement axis. The end of the guiding press block 32 is abutted against the locking hook 31, one end of the pressure lever 33 is abutted against or fixedly connected with the guiding press block 32, the other end is fixedly connected with the first toggle key 38, and the first toggle key 38 is positioned outside the shell 1. At least two lock hooks 31 are arranged, the lock hooks 31 are arranged opposite to each other at intervals, each lock hook 31 comprises a hook body 35 and a shifting block 36, the hook bodies 35 are opposite in phase, one end of each hook body 35 protrudes out of the bottom of the accommodating seat 2, the other end of each hook body 35 is rotatably connected with the accommodating seat 2 through a rotating shaft, the other end of each hook body 35 and the shifting block 36 are integrally formed, the shifting block 36 and the hook bodies 35 form an included angle, so that the lock hooks 31 are roughly L-shaped, and the shifting blocks 36 are abutted to the guide pressing blocks 32. A second reset spring 34 is further disposed on the other side of the toggle block 36 opposite to the guide press block 32, one end of the second reset spring 34 abuts against the toggle block 36, and the other end abuts against the accommodating seat 2. When the locking mechanism 3 is driven by the first toggle button 38, the pressure lever 33 thereof pushes the guide pressing block 32 to move towards the locking hook 31, and at this time, the guide pressing block 32 presses the toggle block 36 connected with the hook body 35, so that the hook deflects with the rotating shaft 35 connected with the containing seat 2 as a rotating fulcrum, and the two hook bodies 35 approach each other until completely separating from the base 61 of the expander body 6, that is, the expander body 6 is unlocked and released from the containing seat 2. On the contrary, the hooking mechanism 3 can complete the locking and fixing of the expander body 6.

As shown in fig. 4-5, in a preferred embodiment, the restriction mechanism 4 is further provided with a restriction adjusting device, the restriction adjusting device is used for adjusting the number of the restricted expansion petals on the dilator, the restriction mechanism 4 adjusting device comprises a toggle button 44 and a plurality of columns 45, one end of each column 45 is fixedly connected with the press ring 42, and the other end is a free end; the shifting key 44 is fixed with the pressing ring 42, the shifting key 44 extends out of the shell 1, and the pressing ring 42 can rotate relative to the accommodating seat 2; when the push ring 42 is pulled by the pull key 44 to rotate, the free end of part or all of the cylinders 45 is in contact with the slide bar 41. Specifically, in the embodiment, the restriction mechanism adjusting device has three gears, i.e., one, two, and three, respectively, if the third gear is adjusted, i.e., the pressing ring 42 is rotated, so that the end of each (four) sliding bar 41 abuts against a cylinder, and at this time, when the pressing ring 42 is pushed in the axial direction of the accommodating base 2, all the sliding bars 41 can extend out of the accommodating base 2, and restriction on all the expansion petals (four) is realized; for another example, when the second gear is adjusted, the pressing ring 42 is rotated again, so that the end portions of three of the four sliding bars 41 abut against one column 45, and at this time, when the pressing ring 42 is pushed in the axial direction of the accommodating seat 2, the three sliding bars 41 can extend out of the accommodating seat 2, and the restriction on the three expansion lobes is realized; similarly, when the first gear is adjusted, the pressing ring 42 is rotated to make the column 45 abut against two of the four sliding bars 41, so that the restriction only for two expansion lobes is realized. The restraint mechanism adjusting device is arranged, so that the flexibility of the phimosis prepuce expansion device in use can be effectively improved, for example, only three or two elastic expansion valves 62 in the expander main body 6 are used in a restraining manner, and the expansion force of the expander main body 6 can be reduced when the four expansion valves are used (participate in expansion), so that pain caused by overlarge expansion force can be avoided or reduced, and the expansion process can be gradually adapted or endured.

As shown in fig. 1 to 5, the present embodiment further provides a soft tissue dilating device, which comprises an operating handle and a dilator main body 6, wherein the dilator main body 6 is connected in the accommodating seat 2 of the operating handle, the dilator main body 6 comprises a base 61 and a plurality of elastic dilating petals 62 connected with the base 61, the plurality of elastic dilating petals 62 extend along the thickness direction of the base 61, and the plurality of elastic dilating petals 62 are all located on the same side of the base 61. Elasticity expansion lamella 62 is connected with base 61 including expansion claw and elastic leg, elastic leg one end, and the other end is connected with the first end of expansion claw and is drawn close toward base 61's axis, and the distance that the second end of expansion claw reaches base 61 axis is longer than the distance that the first end of expansion claw reaches base 61 axis, and the second end of a plurality of expansion claws forms expansion mouth around base 61 axis. Among these, reference may be made to the structure of dilator body 6, having application number 201822273145.5, entitled "Utility model patent of phimosis dilator", and therefore, it will not be described in detail here.

As shown in fig. 1 to 5, in a preferred embodiment, the base 61 is provided with a locking hole 63, the locking hole 63 is rectangular, the locking hole 63 and the locking mechanism cooperate with each other to lock the dilator body 6, and after the base 61 and the locking mechanism 3 are locked, each of the resilient expansion flaps 62 corresponds to each of the slide bars 41 on the constraining mechanism 4. The rectangular lock hole 63 can prevent the elastic expansion flap 62 from being in one-to-one correspondence with the upper slide bar 41 of the constraint mechanism 4 due to rotation after the expander main body is locked with the accommodating seat 2 of the operating handle, so that the constraint mechanism 4 cannot effectively constrain the elastic expansion flap 62 of the expander main body 6.

The utility model discloses produced technological effect mainly embodies: the grip is arranged at the grab handle of the operating handle, and one end of the grip is connected with the shell, so that the grip takes the shell as a fulcrum and forms a lever relative to the restraint mechanism, the operating handle is operated and controlled more laborsavingly, and the use convenience of the operating handle is further improved; furthermore, the inclined pushing type of the operating handle pushed by a single thumb is changed into the handle type of the operating handle pushed by a plurality of fingers, the design of the handle is more in line with the ergonomics, and meanwhile, the handle operated by the plurality of fingers is easier to flexibly control the opening of the expansion valve of the expander main body.

In this specification, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, reference to the description of the terms "preferred embodiment," "yet another embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. An operating handle, includes casing, holding seat and constraining mechanism, the holding seat with casing fixed connection, the holding seat is used for detachable access expander main part, constraining mechanism installs on the holding seat, its characterized in that: the expander is characterized in that the shell is further provided with a grab handle and a handle, one end of the grab handle is fixedly connected with the shell, the other end of the grab handle is a free end, the handle is rotatably connected with the shell, one end of the handle is a pressing end, the other end of the handle is connected with the restraining mechanism, and the handle is used for driving the restraining mechanism to adjust the opening degree of an expansion valve of the expander main body.

2. The operating handle according to claim 1, wherein: the restraint mechanism comprises a sleeve and a plurality of sliding strips, the sliding strips are arranged at intervals along the circumference of the containing seat, the sliding strips are connected with the containing seat in a sliding mode, the sleeve is sleeved on the containing seat, the sleeve is connected with the containing seat in a sliding mode, one end of the sliding strip is abutted to one end of the sleeve, and the other end of the sliding strip is pushed out of the containing seat when the sleeve moves axially along the containing seat.

3. The operating handle according to claim 2, wherein: a first reset spring is further arranged between the sliding strip and the accommodating seat, one end of the first reset spring is abutted against the sliding strip, the other end of the first reset spring is abutted against the accommodating seat, and the first reset spring is used for retracting the sliding strip into the accommodating seat.

4. The operating handle according to claim 2, wherein: the handle is further provided with a rotating portion and a shifting rod, the shifting rod is fixedly connected with the handle, the rotating portion is fixedly connected with the handle or the shifting rod, the rotating portion is close to the joint of the shifting rod and the handle, the rotating portion is rotatably connected with the shell, the length of the handle is larger than that of the shifting rod, and the shifting rod is abutted to the end portion of the sleeve.

5. The operating handle according to claim 4, wherein: the handle takes the rotating part as a fulcrum and forms an included angle with the handle, a third return spring is further arranged between the handle and the handle, one end of the third return spring is connected with the rotating part, and the other end of the third return spring is connected with the shell.

6. The operating handle according to any one of claims 1 to 5, wherein: the holding seat is further provided with a locking mechanism, the locking mechanism is used for locking the expander main body on the holding seat or unlocking the expander main body, the locking mechanism comprises a lock hook, a guide pressing block, a pressing rod and a first shifting key, the first shifting key is in sliding connection with the shell, the lock hook, the guide pressing block and the pressing rod are sequentially arranged in the holding seat, the lock hook is rotatably connected with the holding seat, the guide pressing block and the pressing rod are both in sliding connection with the holding seat, the end part of the guide pressing block is connected with the lock hook, one end of the pressing rod is connected with the guide pressing block, and the other end of the pressing rod is connected with the first shifting key.

7. The operating handle according to claim 6, wherein: the restraint mechanism is also provided with a restraint adjusting device, the restraint adjusting device is used for adjusting the number of restrained expansion petals on the expander and comprises a second toggle key and a plurality of columns, one end of each column is fixedly connected with the sleeve, and the other end of each column is a free end; the second shifting key is fixed with the sleeve, the second shifting key extends out of the shell, and the sleeve can rotate relative to the containing seat; when the second toggle key pulls the sleeve to rotate, the free ends of part or all of the cylinders are abutted against the sliding strip.

8. A soft tissue dilation device, comprising: comprising an operating handle according to any one of claims 1 to 7 and a dilator body detachably connected to the receiving seat of the operating handle.

9. The soft tissue dilation device according to claim 8, wherein: the dilator main body comprises a base and a plurality of elastic dilation petals connected with the base, the elastic dilation petals extend along the axial direction of the containing seat, and the elastic dilation petals are positioned on the same side of the base;

elasticity expansion lamella includes expansion claw and elasticity landing leg, elasticity landing leg one end with the base is connected, the other end with the first end of expansion claw is connected and is past the axis of base is drawn close, the second end of expansion claw arrives the distance of base axis is compared the first end of expansion claw arrives the distance of base axis is long, and is a plurality of the second end of expansion claw centers on the base axis forms the expansion mouth.

10. The soft tissue dilation device according to claim 9, wherein: the base is provided with a lock hole, the lock hole is matched with the locking mechanism to lock the expander main body, and after the base is locked by the locking mechanism, each elastic expansion flap corresponds to each sliding strip on the constraint mechanism.

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