Urethra dilatation device

Abstract

A urethra dilatation device is used for urinary surgery and comprises a dilatation main body and an external supporting device installed in the middle of the dilatation main body, the dilatation main body comprises a hollow soft body and hard bodies connected to the two sides of the soft body, the hard bodies and the soft body form a hollow cylindrical structure, when the external supporting device acts, the hard bodies on the two sides are supported, the supporting amplitude is controllable, and the external supporting device is used for supporting the hard bodies on the two sides. The external supporting devices are in the initial state, the hard bodies on the two sides are in the contraction state under the action of the soft bodies, at the moment, a cylinder formed by the hard bodies and the soft bodies is the smallest, the expansion body can be smoothly inserted into the urethra, and the pain of a patient is reduced; the hard bodies on the two sides are supported to dilate the urethra of a patient, the supported distance of the hard bodies is controllable, the patient can complete urethra dilation at a time, dilators with different diameters do not need to be replaced, the pain of the patient is further reduced, and the dilation effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, especially to a urethral dilator. BACKGROUND

[0002] The urethral dilator is a common medical instrument in urology surgery, and plays an important role in the diagnosis and treatment of urethral stricture and related diseases. The main functions of the urethral dilator include:

[0003] Treating urethral stricture: the urethral dilator can dilate the urethra and increase the diameter of the urethra, thereby treating urethral stricture or obstruction caused by various reasons (such as urethritis, urethral calculus, prostatic hyperplasia, etc.).

[0004] Assisting in urethral examination: during urethral mirror examination and urethral angiography, the urethral dilator can dilate the urethra to facilitate the insertion of examination tools.

[0005] Helping urethral surgery: the urethral dilator can also be used in certain surgeries, such as urethral diverticulectomy and urethral fistula repair, to provide necessary assistance for the surgery.

[0006] The existing urethral dilator body is composed of a group of cylinders with different diameters. This structure of the dilator uses cylinders with different diameters to gradually dilate the urethra. This dilation method requires the use of different dilators to tentatively dilate the urethra, which not only increases the patient's pain but also affects the dilation effect. UTILITY MODEL CONTENT

[0007] In view of the above shortcomings of the prior art, the utility model provides a urethral dilator which uses an external support device to dilate the dilator body, reduces the patient's pain and improves the dilation effect.

[0008] The utility model aims to realize the following technical scheme:

[0009] A urethral dilator, comprising a dilator body and an external support device installed in the middle of the dilator body, the dilator body comprising a hollow soft body and a hard body connected to both sides of the soft body, the hard body and the soft body forming a hollow cylindrical structure, when the external support device operates, the hard body on both sides is lifted up, and the lifting amplitude is controllable.

[0010] The external support device comprises a first external support seat, the first external support seat has a first external support seat groove in the middle, the first external support seat groove has a first external support seat hole in the middle, a screw rod is rotationally connected in the first external support seat hole, the screw rod is threadedly connected with a middle wedge, two external wedges are symmetrically arranged on both sides of the middle wedge, an external wedge sliding block on one side of the external wedge is slidingly connected with the first external support seat groove, and the middle wedge inclined surfaces on both sides of the middle wedge are respectively slidingly connected with the external wedge inclined surfaces on the inner sides of the external wedges.

[0011] The hard body slider on the side of the hard body is slidably connected to the first outer support seat slot in the middle of the first outer support seat.

[0012] The outer support device comprises a second outer support seat, a second outer support seat slot is arranged in the middle of the second outer support seat, a screw rod seat is arranged in the middle of the second outer support seat slot, an outer support body is rotatably connected to the screw rod seat, the outer support body has threads with opposite rotation directions on both sides, two outer support bodies are symmetrically arranged on both sides of the second outer support device, the screw rod is threadedly connected to the outer support bodies on both sides, and the outer support bodies on both sides are slidably connected to the second outer support seat slot.

[0013] The hard body slider on the side of the hard body is slidably connected to the first outer support seat slot in the middle of the second outer support seat.

[0014] Beneficial effects: the outer support device is in an initial state, the hard bodies on both sides are in a contracted state under the action of the soft body, at this time, the cylinder formed by the hard body and the soft body is smallest, the expansion main body can be smoothly inserted into the urethra, and the pain of the patient is reduced; when the expansion main body is inserted into the urethra, the screw rod of the first outer support device or the screw rod of the second outer support device is rotated, the hard bodies on both sides are supported, the urethra of the patient is expanded, the distance that the hard bodies are supported is controllable, the patient can complete the expansion of the urethra at one time, different-diameter expanders need not be replaced, the pain of the patient is further reduced, and the expansion effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a first implementation example structure schematic view of the urethral expansion device.

[0016] Figure 2 It is a second embodiment structure schematic view of the urethral expansion device.

[0017] Figure 3 It is an expansion main body structure schematic view.

[0018] Figure 4 It is a hard body structure schematic view.

[0019] Figure 5 It is a soft body structure schematic view.

[0020] Figure 6 It is a first outer support device structure schematic view.

[0021] Figure 7 It is a first outer support seat structure schematic view.

[0022] Figure 8 It is a middle wedge structure schematic view.

[0023] Figure 9 It is an outer wedge structure schematic view.

[0024] Figure 10 The second outer supporting device structure schematic view is used for the utility model.

[0025] Figure 11 The second outer supporting seat structure schematic view is used for the utility model.

[0026] Figure 12 The lead screw structure schematic view is used for the utility model.

[0027] Figure 13 The outer supporting body structure schematic view is used for the utility model. Specific implementation

[0028] The utility model will be further explained in detail according to the drawings and embodiments:

[0029] Reference Figures 1 to 5 , the device includes expansion main body 100 and installs the outer supporting device in expansion main body 100 middle, expansion main body 100 includes hard body 110 and soft body 120, the axial section of hard body 110 is the arc structure of less than half circle, the axial section of soft body 120 is the part in the arc, and soft body 120 has soft body inner chamber 121 in the middle, and soft body 120 is made of elastic material, and soft body 120 and the hard body 110 of two sides are bonded together, and two hard bodies 110 and soft body 120 form hollow circular structure, and the elastic deformation of soft body 120 can adapt the change of hard body 110 position when the hard body 110 of two sides is supported.

[0030] Figure 1 , Figures 6 to 9The first embodiment of the device is a first external support device 200, which includes a first external support base 210. The first external support base 210 has a first external support base slot 211 in the middle, and a first external support base hole 212 in the middle of the first external support base slot 211. A screw rod 240 is connected to the first external support base hole 212. An intermediate wedge 220 is provided on the outside of the screw rod 240. The intermediate wedge 220 has an intermediate wedge screw hole 222 in the middle, and two symmetrical intermediate wedge inclined surfaces 221 on both sides of the intermediate wedge 220. The screw rod 240 is threadedly connected to the intermediate wedge screw hole 222. Two symmetrical external wedges 230 are provided on both sides of the intermediate wedge 220. An external wedge sliding block 232 is provided on one side of the external wedge 230. The external wedge sliding block 232 is slidingly connected to the first external support base slot 211. An external wedge inclined surface 231 is provided on the inside of the external wedge 230. The external wedge inclined surface 231 has the same inclination as the intermediate wedge inclined surface 221. The external wedge inclined surface 231 is slidingly connected to the intermediate wedge inclined surface 221. One side of each hard body 110 is provided with a hard body sliding block 111. The hard body sliding block 111 is slidingly connected to the first external support base slot 211 in the middle of the first external support base 210. When the screw rod 240 is rotated, the screw rod 240 drives the intermediate wedge 220 to move forward and backward. When the intermediate wedge 220 moves forward and backward, the intermediate wedge inclined surfaces 221 on both sides of the intermediate wedge 220 prop up the external wedges 230 on both sides outward. The two external wedges 230 prop up the two hard bodies 110 outward. The two hard bodies 110 prop up the urethra outward. The hard body 110 is proped outward, and the soft body 120 is elastically deformed. When the screw rod 240 is rotated in the opposite direction, the hard body 110 loses support, and the hard body 110 is retracted under the action of the soft body 120.

[0031] Figure 2 , Figures 10 to 13The second embodiment of the device is a second external supporting device 200, which comprises a second external supporting seat 310 with a second external supporting groove 311 in the middle, a screw rod seat 312 in the middle of the second external supporting groove 311, a half bearing seat 340 fixedly connected to the outside of the screw rod seat 312, the screw rod seat 312 and the half bearing seat 340 forming a complete bearing seat, a screw rod 320 rotatingly connected to the bearing seat, the screw rod 320 having threads rotating in opposite directions on both sides, two external supporting bodies 330 symmetrically arranged on both sides of the screw rod 320, an external supporting body sliding block 331 arranged on one side of each external supporting body 330, the external supporting body sliding block 331 slidingly connected to the second external supporting groove 311, and an external supporting body screw hole 332 arranged on one side of each external supporting body 330 and connected to the threads on both sides of the screw rod 320, each hard body 110 having a hard body sliding block 111 slidingly connected to the first external supporting groove 211 in the middle of the second external supporting seat 310, and the screw rod 320 being rotated to drive the two external supporting bodies 330 on both sides to synchronously approach or separate, the two external supporting bodies 330 separating to the sides to support the two hard bodies 110 to the outside, the two hard bodies 110 supporting the urethra, the hard body 110 being supported to the outside, and the soft body 120 being elastically deformed, and the hard body 110 being retracted under the action of the soft body 120 when the two external supporting bodies 330 approach each other.

[0032] When the device is used, the external supporting device is in an initial state, the two hard bodies 110 on both sides are not supported, and the two hard bodies 110 are in a retracted state under the action of the soft body 120, at this time, the cylinder formed by the hard body 110 and the soft body 120 is smallest, the expansion main body 100 can be smoothly inserted into the urethra, and the pain of the patient is reduced, after the expansion main body 100 is inserted into the urethra, the external wedge 230 of the first external supporting device 200 or the screw rod 320 of the second external supporting device 200 is rotated, the two hard bodies 110 on both sides are supported, the urethra of the patient is expanded, the distance by which the hard body 110 is supported is controllable, the patient can complete the expansion of the urethra at one time, different diameter expanders are not needed to be replaced, the pain of the patient is further reduced, and the expansion effect is improved.

[0033] When the device is used, the external supporting device is in an initial state, the two hard bodies 110 on both sides are not supported, and the two hard bodies 110 are in a retracted state under the action of the soft body 120, at this time, the cylinder formed by the hard body 110 and the soft body 120 is smallest, the expansion main body 100 can be smoothly inserted into the urethra, and the pain of the patient is reduced, after the expansion main body 100 is inserted into the urethra, the external wedge 230 of the first external supporting device 200 or the screw rod 320 of the second external supporting device 200 is rotated, the two hard bodies 110 on both sides are supported, the urethra of the patient is expanded, the distance by which the hard body 110 is supported is controllable, the patient can complete the expansion of the urethra at one time, different diameter expanders are not needed to be replaced, the pain of the patient is further reduced, and the expansion effect is improved.

Claims

1. A urethral dilation device, characterized by The utility model provides an external support device (200) and a hard body (110) are connected in the expansion main part (100) middle, the expansion main part (100) includes the hollow soft body (120) and the hard body (110) connected in the both sides of soft body (120), and the hard body (110) and soft body (120) form hollow cylindrical structure, when the external support device (200) act, the hard body (110) of both sides is supported, and the amplitude of supporting is controllable.

2. A urethral dilation device according to claim 1, wherein The external support device (200) includes first external support seat (210), and first external support seat (210) has first external support seat groove (211) in the middle, and first external support seat groove (211) has first external support seat hole (212) in the middle, and screw rod (240) is rotatably connected in first external support seat hole (212), and screw rod (240) is screw connected with middle wedge (220), and two symmetrical external wedges (230) are arranged on the both sides of middle wedge (220), and external wedge sliding block (232) on the side of external wedge (230) is slidably connected with first external support seat groove (211), and middle wedge inclined surface (221) on the both sides of middle wedge (220) is slidably connected with the internal side of external wedge inclined surface (231) of external wedge (230).

3. A urethral dilation device according to claim 1, wherein The hard body sliding block (111) on the side of hard body (110) is slidably connected with first external support seat groove (211) in the middle of first external support seat (210).

4. The urethral dilation device of claim 1, wherein The external support device (200) includes second external support seat (310), and second external support seat (310) is provided with second external support seat groove (311) in the middle, and screw rod seat (312) is arranged in the middle of second external support seat groove (311), and external support body (330) is rotatably connected in screw rod seat (312), and the both sides of external support body (330) have opposite screw threads, and two symmetrical external support bodies (330) are arranged on the both sides of second external support device (200), and screw rod (320) is screw connected with the both sides of external support body (330), and the both sides of external support body (330) are slidably connected with second external support seat groove (311).

5. The urethral dilation device of claim 1, wherein The hard body sliding block (111) on the side of hard body (110) is slidably connected with first external support seat groove (211) in the middle of second external support seat (310).

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