CN112741949A - Phimosis expander - Google Patents

Abstract

The invention discloses a phimosis dilator, which comprises an inner tube, an outer sleeve and a plurality of elastic expansion flaps, wherein the outer sleeve is sleeved outside the inner tube and can reciprocate along the axial direction of the inner tube, the first end of each elastic expansion flap is a free end, the second end of each elastic expansion flap is connected with the outer sleeve, the first end of each elastic expansion flap extends out of the first end of the inner tube and extends towards the direction far away from the inner tube, an inclined part inclined relative to the central axis of the inner tube is formed between the first end and the second end of each elastic expansion flap, one end of the inner tube is provided with a first limiting ring, the first limiting ring is abutted against the inclined part, the phimosis dilator further comprises an adjusting device, and can be reciprocally moved and positioned along the axial direction of the inner tube relative to the outer sleeve, when the adjusting device reciprocally moves relative to the outer sleeve, the first limiting ring correspondingly moves relative to the inclined part to adjust the opening degree of the first ends of the elastic expansion petals; the phimosis expander has the advantages of reasonable structure, adjustable opening degree and good applicability.

Description

Phimosis expander

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a phimosis expander.

Background

Phimosis is a common disease of children, and the prepuce of the phimosis of the children cannot be turned backwards to expose the urethral orifice and the glans due to the narrow prepuce opening or 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 is difficult to master the optimal excision degree of the foreskin due to wound and unfixed growth and development of children, meanwhile, the circumcision belongs to traumatic operation and brings great pain to children patients, and postoperative recovery period is relatively long and postoperative complications are easy to cause; the prepuce dilatation operation is non-invasive, the prepuce injury is less caused, the daily life and the urination of the infant patient are not influenced, the operation pain is small, the infant patient who receives the prepuce dilatation operation does not need to lie in bed for rest, and the infant patient can be easily accepted by children and parents. Prepuce expansion surgery usually adopts phimosis expander to expand phimosis mouth, but phimosis expander among the prior art has the problem that it is inconvenient to use or the suitability is poor: the dilator is known to stretch open the foreskin by the elastic force of the dilating valve, but the opening degree of the dilator in the prior art cannot be adjusted according to needs, namely the opening degree of the dilator cannot be adjusted to reduce the elastic dilating force of the dilating valve so as to gradually adapt to or endure the patient, and particularly when the patient uses the dilator for the first time to dilate, the elastic force of the dilating valve is not restrained to completely act on the foreskin, so that the patient still feels painful when receiving treatment, therefore, the infant is often not matched, and psychological fear of the infant is easily caused.

Disclosure of Invention

In view of the above, the present invention aims to provide a phimosis dilator which has a reasonable structure, can adjust the opening degree, and has good applicability.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a phimosis expander comprises an inner tube, an outer tube and a plurality of elastic expansion flaps, wherein the outer tube is sleeved outside the inner tube, the inner tube can move back and forth along the axis direction of the inner tube relative to the outer tube, the first end of each elastic expansion flap is a free end, the second end of each elastic expansion flap is connected with the outer tube, the first end of each elastic expansion flap extends out from the first end of the inner tube and extends towards the direction away from the inner tube, an inclined part inclined relative to the axis of the inner tube is formed between the first end and the second end of each elastic expansion flap, one end of the inner tube is provided with a first limit ring, the first limit ring is abutted against the inclined part, the phimosis expander further comprises an adjusting device, the adjusting device is sleeved outside the inner tube and the outer tube, one end of the adjusting device is abutted against the first limit ring, and the adjusting device is movably connected with the, and is reciprocally movable and positionable along the axial direction of the inner tube with respect to the outer sleeve, and when the adjusting device reciprocally moves along the axial direction of the inner tube with respect to the outer sleeve, the first stopper ring correspondingly moves with respect to the inclined portion, and the opening degree of the first ends of the plurality of elastic expansion flaps is adjusted.

Preferably, the adjusting device comprises a telescopic sleeve, the telescopic sleeve is sleeved outside the outer sleeve, an internal thread is arranged in the telescopic sleeve, an external thread is arranged on the outer wall of the outer sleeve, and the external thread and the internal thread are matched with each other and can adjust the telescopic sleeve to extend or shorten relative to the outer sleeve.

Preferably, the adjusting device comprises a telescopic sleeve and can slide relative to the outer sleeve, one or more grooves are annularly arranged on the inner wall of the telescopic sleeve, the grooves are arranged at intervals along the axial direction of the telescopic sleeve, positioning marbles are arranged on the outer wall of the outer sleeve, and the grooves and the positioning marbles are matched with each other to adjust the distance of the telescopic sleeve relative to the outer sleeve in an extending or shortening manner;

or the adjusting device comprises a telescopic sleeve and can slide relative to the outer sleeve, the outer sleeve is provided with a loose-tight bolt, the loose-tight bolt is screwed with the outer sleeve, and the end part of the loose-tight bolt is opposite to the outer wall of the outer sleeve.

Preferably, a holding portion is further arranged at one end, far away from the first limiting ring, of the outer sleeve, and the holding portion is arranged circumferentially around the outer sleeve and is integrally formed with the outer sleeve.

Preferably, the side wall of the outer sleeve and/or the outer wall of the telescopic sleeve are/is also provided with adjusting marks.

Preferably, the other end of the inner pipe, which is opposite to the first limiting ring, is also provided with a second limiting ring, and the second limiting ring is connected with the inner pipe; and/or a plurality of fixing holes are arranged on the second limiting ring along the circumferential direction of the second limiting ring.

Preferably, the inner tube is further sleeved with a return spring, and the return spring is located between the outer tube and the second limiting ring.

Preferably, a plurality of through holes are annularly formed in the side wall, close to the end part of the first limiting ring, of the inner pipe, and the through holes are located at the end part close to the first limiting ring; or the through hole opening also extends to the radial direction of the first limiting ring, the through holes are matched with the expansion petals, and each expansion petal extends out of each through hole.

Preferably, the elastic expansion valve comprises expansion claws, support legs and a support arm, one end of each support leg is connected with the outer sleeve, the other end of each support leg is connected with one end of the corresponding support arm, the other end, far away from the support legs, of the support arm inclines towards the radial direction far away from the first limiting ring, one end of each expansion claw is connected with the other end of the corresponding support arm, and the other ends of the expansion claws form expansion openings around the central axis of the inner tube.

Preferably, the outer sleeve is provided with a plurality of pin holes for fixing the elastic expansion flaps and pin blocks, the pin holes are arranged along the axial direction of the outer sleeve, and the pin blocks are inserted into the pin holes and form and fix the expansion flaps;

the side wall of one side in the pin hole is also provided with a flange, the flange and the outer sleeve are integrally formed, and the pin block is also provided with positioning holes corresponding to the flanges;

the one side that lies in its thickness direction on the round pin piece still is provided with the stopper, the stopper is the length direction setting of strip setting and edge round pin piece, and the both sides of stopper still are provided with the bellying respectively, bellying and stopper integrated into one piece still are provided with the kink of mutually supporting with the bellying at the tip of landing leg.

The invention has the following beneficial effects: because set up adjusting device on the outer tube, adjusting device adjusts the distance of outer tube for first spacing ring and control the just like aperture of elasticity expansion lamella from this, realizes retraining or controlling expansion lamella elastic force through the regulation to expansion lamella aperture promptly to make the expander can give patient a process of adaptation gradually or tolerance when using, reduced the painful of patient when using the expander to treat, also improved the suitability of expander simultaneously.

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. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.

FIG. 1 is a schematic view of the entire structure of a phimosis dilator according to the present invention;

FIG. 2 is an exploded view of a phimosis dilator of the present invention;

FIG. 3 is a top view of an inner tube of a phimosis dilator according to the present invention;

FIG. 4 is a schematic top view of the outer sheath of the phimosis dilator according to the present invention;

FIG. 5 is a schematic view of the pin block of a phimosis dilator according to the present invention;

fig. 6 is a schematic view of the structure of the expansion valve in a phimosis dilator according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the 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 orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of describing the present invention, but do 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 should not be construed as limiting the present invention; in addition, in the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a welding fixing manner, a pin fixing manner, or the like, which is commonly used in the prior art, and therefore, detailed description thereof is omitted in this embodiment.

As shown in fig. 1-4 and 6, the present embodiment provides a phimosis dilator, which comprises a hollow inner tube 1, an outer sleeve 2 and a plurality of elastic dilating petals 3; wherein, the first end of a plurality of elasticity expansion lamella 3 is the free end, and the second end of a plurality of elasticity expansion lamella 3 encircles along the circumference of outer tube 2 and is fixed mutually with outer tube 2, and the first end of elasticity expansion lamella 3 stretches out and extends to the direction department of keeping away from inner tube 1 from the first end of inner tube 1, is formed with the slope portion 35 that inclines for the axis of inner tube 1 between the first end of elasticity expansion lamella 3 and the second end to form the expanded state of expansion lamella 3. One end of inner tube 1 is provided with first spacing ring 11, first spacing ring 11 is with the mode integrated into one piece of moulding plastics or through bolt fastening with inner tube 1, and first spacing ring 11 butt rake 35, phimosis expander still includes adjusting device, adjusting device cover is established outside inner tube 1 and outer tube 2, and adjusting device's one end and first spacing ring 11 butt, adjusting device and outer tube 2 swing joint, and can be for outer tube 2 along the axis direction reciprocating motion of inner tube 1 and location, when adjusting device is for outer tube 2 along the axis direction reciprocating motion of inner tube 1, first spacing ring 11 moves for rake 35 correspondingly, adjust the aperture of the first end of a plurality of elasticity expansion valves. When the outer sleeve 2 moves downwards along the inner tube 1 and relative to the first limiting ring 11, the free ends of the expansion flaps 3 can be driven to move towards the inner tube 1, and at the moment, the expansion flaps 3 in the expansion state are restricted by the inner diameter of the inner tube 1, so that the free ends of the elastic expansion flaps 3 can be close to each other, namely, the expander is in the folding state, and the expansion flaps 3 can be conveniently placed in the prepuce openings of patients; after the expansion flap 3 is placed, the outer sleeve 2 is moved reversely, the free ends of the elastic expansion flaps 3 are separated from each other to release the constraint force on the elastic expansion flaps, so that the expansion flaps 3 can be in the expansion state again, the expansion flaps 3 in the expansion state can stretch and expand the foreskin under the elastic action force, and the prepuce opening is expanded to not wrap the glans penis any more, so that the treatment purpose is achieved. The outer sleeve 2 is also provided with an adjusting device which adjusts the distance between the outer sleeve 2 and the first limiting ring 11 and controls the opening of the elastic expansion valve 3; after the adjusting device adjusts and makes the distance of the outer sleeve 2 far away from the first limit ring 11, the free ends of the elastic expansion petals 3 are rather made to approach each other, namely, the elastic force of the supporting arm is restrained or limited; thereby avoiding the pain caused by the elastic force of the expansion flap 3 acting on the foreskin of the patient; for example, when the dilator is used for treatment, the outer sleeve 2 is adjusted to the most far end relative to the first limit ring 11, the expansion force of the expansion flap 3 is the smallest, and then the outer sleeve 2 can be gradually adjusted to the first limit ring 11 through the adjusting device according to the expansion condition of the preputial orifice to enhance the expansion force, and simultaneously, the tolerance or adaptation process is provided for the patient. Before the treatment of the dilator is finished, the child patient does not need to take off the phimosis dilator; for example, when the infant needs to urinate in the treatment process by using the dilator, the infant can urinate directly, and the urine can flow out through the inner tube 1, so that the dilator is prevented from being removed, and the convenience in using the dilator is improved.

As shown in fig. 2, in a preferred embodiment, the adjusting device comprises a telescopic sleeve 6, and the telescopic sleeve 6 is sleeved outside the outer sleeve 2; an internal thread is arranged in the telescopic sleeve 6, an external thread is arranged on the outer wall of the outer sleeve 2, and the external thread and the internal thread are matched with each other and can adjust the telescopic sleeve 6 to extend or shorten relative to the outer sleeve 2. When the telescopic sleeve 6 is rotated clockwise, the telescopic sleeve extends out from the end part of the outer sleeve 2 and abuts against the first limiting ring 11, so that the outer sleeve 2 is pushed away from the position far away from the first limiting ring 11 and drives the expansion valve 3 to move together, and the elastic force of the expansion valve 3 is restrained. Otherwise, the restraint of the elastic force of the expansion flap 3 is released.

In another embodiment, the adjusting device comprises a telescopic sleeve 6 and can slide up and down relative to the outer sleeve 2, one or more grooves (not shown) are annularly arranged on the inner wall of the telescopic sleeve 6, the grooves are arranged at intervals along the axial direction of the telescopic sleeve 6, and the outer wall of the outer sleeve 2 is provided with positioning balls (not shown), and the grooves and the positioning balls are matched with each other to adjust the distance of the telescopic sleeve 6 extending or shortening relative to the outer sleeve 2. When the aperture of expander is adjusted to needs, slip telescope tube 6, when recess on the 6 inner walls of telescope tube corresponds with the location marble, the location marble is embedded into the recess under the effect of elastic force in, can accomplish the locking of telescope tube 6 and outer tube 2, only need overcome when needs readjustment the resistance of location marble can.

In another embodiment, the adjusting device comprises a telescopic sleeve 6 and can slide up and down relative to the outer sleeve 2, and a fastening bolt (not shown) is arranged on the outer telescopic sleeve 6 and is screwed with the telescopic sleeve 6; when the opening of the expander needs to be adjusted, the telescopic sleeve 6 is slid to a proper position, and then the tightening bolt is screwed down, namely, the end part of the tightening bolt is abutted against the outer wall of the outer sleeve 2, so that the telescopic sleeve 6 is locked on the outer sleeve 2; when the adjustment is needed again, the loosening and tightening bolts are loosened and then the corresponding adjustment is carried out.

In a preferred embodiment, as shown in fig. 2, a grip portion 23 is further disposed on an end of the outer sleeve 2 away from the first stop collar 11, the grip portion 23 is circumferentially disposed around the outer sleeve 2 and integrally formed with the outer sleeve 2, and the grip portion 23 is used for facilitating the grip of the hand and adjusting the telescopic sleeve 6. The side wall of the outer sleeve and/or the outer wall of the telescopic sleeve 6 are/is also provided with adjusting marks. If arrows rotating leftwards and rightwards, plus signs and minus signs are respectively arranged on the outer wall of the telescopic sleeve 6; namely, the expansion force of the elastic expansion valve 3 of the dilator is reduced by rotating the telescopic sleeve 6 to the left, and the expansion force of the elastic expansion valve 3 of the dilator is enhanced by rotating the telescopic sleeve 6 to the right; wherein, the outer surface of the outer sleeve is also provided with marks in the shapes of 1, 2 and 3, which indicate that the expansion force of the expander is increased from low to high in sequence, thereby being beneficial to improving the operation or use convenience of the expander.

As shown in fig. 1 and 2, in a preferred embodiment, a second stop collar 12 is further disposed on the other end of the inner tube 1 opposite to the first stop collar 11, and the second stop collar 12 is connected to the inner tube 1. In this embodiment, the second limit ring 12 is detachably connected to the inner tube 1; that is, an internal thread is provided on the end portion of the inner pipe 1 opposite to the first stopper ring 11, an external thread that fits into the internal thread is provided on the second stopper ring 12, and the second stopper ring 12 and the inner pipe 1 are fixed by the internal and external threads by screwing, but of course, the second stopper ring 12 and the inner pipe may be fixed by gluing or by bolts. The limiting rings are arranged at the two ends of the inner tube 1, so that the upper limit and the lower limit moving positions of the outer sleeve 2 can be restrained, and the outer sleeve 2 is prevented from slipping off the inner tube 1. In this embodiment, the second stop collar 12 is further provided with a plurality of fixing holes 14 along the circumferential direction thereof, and the fixing holes 14 may be used for threading a rope or a medical adhesive tape so as to fix the dilator on the body of the infant; when the dilator is used for treatment, a certain time is usually needed for the treatment, the child is always alive and active, and the dilator can be prevented from slipping from the foreskin due to the action of the child and influencing the treatment effect of the dilator after being fixed on the body of the child through the mutual matching of the fixing hole 14 and the rope or the medical adhesive tape.

As shown in fig. 1 and 2, in a preferred embodiment, a return spring 4 is further sleeved outside the inner tube 1, and the return spring 4 is located between the outer tube 2 and the second limit ring 12. After the reset spring 4 is arranged, when the force applied to the expander and enabling the expansion valve 3 to be in the furled state is released, the reset spring 4 can push the outer sleeve 2 to move towards the first limiting ring 11 under the action of elastic force, so that the expander is automatically in the expanded state without manual operation and can be switched to the expanded state, and the convenience of the operation of the expander is further improved.

As shown in fig. 1 and 2, in a preferred embodiment, a plurality of through holes 13 are further annularly formed on the side wall of the inner tube 1 near the end of the first position-limiting ring 11, and the through holes 13 are located near the end of the first position-limiting ring 11; or the through hole 13 extends towards the radial direction of the first limit ring 11; or the through hole 13 is directly arranged on the first limit ring 11 in a surrounding mode. Wherein the number of through holes 13 corresponds to the number of resilient expansion flaps 3, and each expansion flap 3 protrudes from each through hole 13, respectively. In the above embodiment, the ring of the elastic expansion flap 3 is arranged on the periphery of the inner tube 1, one end of the expansion flap 3 is fixed with the outer sleeve 2, and the other end, namely the free end, extends out of the through hole 13 and is far away from one end of the inner tube 1, at this time, the through hole 13 can play a role of binding the elastic expansion flap 3, namely, the expansion flap 3 is folded or expanded by taking the through hole 13 as a base point; meanwhile, the through hole 13 can also reduce the stability of the expansion flap 3, that is, two points at the connecting and fixing position of the expansion flap 3 and the through hole 13 can define a line, so that the position offset of the expansion flap 3 relative to the folding or expanding direction is reduced when the force is applied.

As shown in fig. 6, in a preferred embodiment, the resilient expansion flap 3 includes an expansion claw 31, a leg 32 and a support arm 33, in this embodiment, the inclined portion 35 of the expansion flap 3 forms the support arm 33, one end of the leg 32 is fixedly connected to the outer sleeve 2, the other end is connected to one end of the support arm 33, the other end of the support arm 33, which is far from the leg 32, is inclined in a radial direction, which is far from the first stop collar 11, one end of the expansion claw 31 is connected to the other end of the support arm 33, and the other ends of the plurality of expansion claws 31 form an expansion opening 34 around the central axis of the inner tube. The elastic expansion flap 3 is formed by bending an elastic metal wire, such as a steel wire or a titanium wire; it is of course also possible to use plate-shaped resilient expansion flaps 3, i.e. expansion flaps 3 formed by bending steel or titanium sheets. When in use, the expansion claw 31 extends into the foreskin from the opening of the foreskin and forms a support for the foreskin, and the support arm 33 provides an elastic force for the expansion and stretching of the foreskin.

As shown in fig. 2, 4 and 5, in a preferred embodiment, the outer sleeve 2 is provided with a plurality of pin holes 21 for fixing the elastic expansion petals 3 and pin blocks 5 fitted to the pin holes 21, the pin holes 21 are arranged at intervals in the axial direction of the outer sleeve 2, the number of the pin holes 21 corresponds to the number of the expansion petals 3, and the pin blocks 5 are inserted into the pin holes 21 and fixed to the outer sleeve 2 with respect to the legs 32 of the expansion petals 3. The side wall of one side in the pin hole 21 is also provided with a flange 22, the flange 22 and the outer sleeve 2 are integrally formed through injection molding, and the pin block 5 is also provided with a positioning hole 51 corresponding to the flange 22. The one side that lies in its thickness direction on round pin piece 5 still is provided with stopper 52, and stopper 52 is the strip setting and sets up along the length direction of round pin piece 5, and the both sides of stopper 52 still are provided with respectively along the bellied bellying 53 of stopper 52 width direction, and bellying 53 and stopper 52 and round pin piece 5 integrated into one piece, wherein, still be provided with the kink 34 of mutually supporting with bellying 53 at the tip of landing leg 32. The use of the pin block 5 in cooperation with the pin hole 21 to secure the resilient expansion flap 3 facilitates replacement of the expansion flap 3 or sterilization and maintenance of the disassembled expander. When in use, the bent parts 34 on the supporting legs 32 of the expansion valve 3 are clamped on the limiting blocks of the pin blocks 5 and are meshed with the convex parts 53, then the pin blocks 5 are inserted into the pin holes 21 of the outer sleeve 2, and the flanges 22 in the pin holes 21 are clamped into the positioning holes 51 on the pin blocks 5, so that the fixation of the elastic expansion valve 3 can be completed; when disassembly is required, only a force is required to be applied to the expansion flap 3 to enable the pin block 5 to be disengaged from the pin hole 21. Of course, the fixation of the expansion flap 3 to the outer sleeve 2 can also be effected in the same way, for example by fastening the expansion flap to the outer sleeve 2 by means of screws, but only when the expansion flap 3 is mounted or when the expansion flap 3 is dismounted, tools such as screwdrivers must be used.

The invention has the following beneficial effects: because set up adjusting device on the outer tube, adjusting device adjusts the distance of outer tube for first spacing ring and control the just like aperture of elasticity expansion lamella from this, realizes retraining or controlling expansion lamella elastic force through the regulation to expansion lamella aperture promptly to make the expander can give patient a process of adaptation gradually or tolerance when using, reduced the painful of patient when using the expander to treat, also improved the suitability of expander simultaneously.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A phimosis dilator, characterized in that: the phimosis dilator comprises an inner tube, an outer tube and a plurality of elastic expansion flaps, wherein the outer tube is sleeved outside the inner tube, the inner tube can move in a reciprocating manner relative to the axis direction of the inner tube along the outer tube, the first end of each elastic expansion flap is a free end, the second end of each elastic expansion flap is connected with the outer tube, the first end of each elastic expansion flap extends out from the first end of the inner tube and extends towards the direction away from the inner tube, an inclined part inclined relative to the axis of the inner tube is formed between the first end and the second end of each elastic expansion flap, one end of the inner tube is provided with a first limiting ring, the first limiting ring is abutted against the inclined part, the phimosis dilator further comprises an adjusting device, the adjusting device is sleeved outside the inner tube and the outer tube, one end of the adjusting device is abutted against the first limiting ring, and the, and is reciprocally movable and positionable along the axial direction of the inner tube with respect to the outer sleeve, and when the adjusting device reciprocally moves along the axial direction of the inner tube with respect to the outer sleeve, the first stopper ring correspondingly moves with respect to the inclined portion, and the opening degree of the first ends of the plurality of elastic expansion flaps is adjusted.

2. The phimosis dilator of claim 1, wherein: the adjusting device comprises a telescopic sleeve, the telescopic sleeve is sleeved outside the outer sleeve, an internal thread is arranged in the telescopic sleeve, an external thread is arranged on the outer wall of the outer sleeve, and the external thread and the internal thread are matched with each other and can adjust the telescopic sleeve to extend or shorten relative to the outer sleeve.

3. The phimosis dilator of claim 1, wherein: the adjusting device comprises a telescopic sleeve and can slide relative to the outer sleeve, one or more grooves are annularly arranged on the inner wall of the telescopic sleeve, the grooves are arranged at intervals along the axial direction of the telescopic sleeve, positioning marbles are arranged on the outer wall of the outer sleeve, and the grooves and the positioning marbles are matched with each other to adjust the distance of the telescopic sleeve relative to the extension or shortening of the outer sleeve;

or the adjusting device comprises a telescopic sleeve and can slide relative to the outer sleeve, the outer sleeve is provided with a loose-tight bolt, the loose-tight bolt is screwed with the outer sleeve, and the end part of the loose-tight bolt is opposite to the outer wall of the outer sleeve.

4. A phimosis dilator according to claim 2 or 3, wherein: and a holding part is further arranged at one end of the outer sleeve far away from the first limiting ring, and the holding part is annularly arranged along the circumferential direction of the outer sleeve and is integrally formed with the outer sleeve.

5. A phimosis dilator according to claim 2 or 3, wherein: and the side wall of the outer sleeve and/or the outer wall of the telescopic sleeve are/is also provided with adjusting marks.

6. The phimosis dilator of claim 1, wherein: the other end of the inner pipe, which is opposite to the first limiting ring, is also provided with a second limiting ring, and the second limiting ring is connected with the inner pipe;

and/or a plurality of fixing holes are arranged on the second limiting ring along the circumferential direction of the second limiting ring.

7. The phimosis dilator of claim 6, wherein: and a return spring is further sleeved outside the inner tube and is positioned between the outer tube and the second limiting ring.

8. The phimosis dilator of claim 1, wherein: a plurality of through holes are annularly formed in the side wall, close to the end part of the first limiting ring, of the inner pipe, and the through holes are located at the end part close to the first limiting ring; or the through hole opening also extends to the radial direction of the first limiting ring, the through holes are matched with the expansion petals, and each expansion petal extends out of each through hole.

9. The phimosis dilator of claim 1, wherein: the elasticity expansion valve includes expansion claw, landing leg and support arm, the one end of landing leg is connected with the outer tube, and the other end is connected with the one end of support arm, the other end of keeping away from the landing leg on the support arm is to the radial direction slope of keeping away from first spacing ring, the one end of expansion claw is connected with the other end of support arm, and the other end of a plurality of expansion claws forms the expansion mouth around the axis of inner tube.

10. The phimosis dilator of claim 1, wherein: a plurality of pin holes and pin blocks are annularly arranged on the outer sleeve and used for fixing the elastic expansion valve, the pin holes are arranged along the axial direction of the outer sleeve, and the pin blocks are inserted into the pin holes and form fixation on the expansion valve;

the side wall of one side in the pin hole is also provided with a flange, the flange and the outer sleeve are integrally formed, and the pin block is also provided with positioning holes corresponding to the flanges;

the one side that lies in its thickness direction on the round pin piece still is provided with the stopper, the stopper is the length direction setting of strip setting and edge round pin piece, and the both sides of stopper still are provided with the bellying respectively, bellying and stopper integrated into one piece still are provided with the kink of mutually supporting with the bellying at the tip of landing leg.

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