Urethral catheterization dilator
阅读说明:本技术 导尿扩张器 (Urethral catheterization dilator ) 是由 章洁 许亮 皮红英 于 2019-11-27 设计创作,主要内容包括:一种导尿扩张器,其包括:外通道单元和内扩张单元;外通道单元包括能够收缩的网状管道,网状管道的前端包括圆球,网状管道的后端形成喇叭状的开口;网状管道通过顺时针方向旋转形成的多条第一螺线和逆时针方向旋转形成的多条第二螺线交叉形成;其中多条第一螺线和多条第二螺线中至少一根是弹性金属制成的;收缩的网状管道的直径小于圆球的直径;内扩张单元包括弹性金属制成的易于弹性弯曲的杆体,杆体的前端形成圆柱状的扩张头,扩张头的两端形成为圆弧表面;扩张头的直径远大于杆体以及圆球的直径;内扩张单元能够自网状管道的后端的喇叭状的开口插入网状管道内。(A urinary cathether dilator, comprising: an outer channel unit and an inner expansion unit; the outer channel unit comprises a contractible reticular pipeline, the front end of the reticular pipeline comprises a ball, and the rear end of the reticular pipeline forms a horn-shaped opening; the reticular pipeline is formed by crossing a plurality of first spirals formed by rotating in a clockwise direction and a plurality of second spirals formed by rotating in a counterclockwise direction; wherein at least one of the plurality of first spirals and the plurality of second spirals are made of a resilient metal; the diameter of the contracted reticular pipeline is smaller than that of the round ball; the inner expansion unit comprises a rod body which is made of elastic metal and easy to elastically bend, a cylindrical expansion head is formed at the front end of the rod body, and two ends of the expansion head form arc surfaces; the diameter of the expansion head is far larger than that of the rod body and the round ball; the inner expanding unit can be inserted into the mesh duct from a trumpet-shaped opening at the rear end of the mesh duct.)
1. A urinary catheterizing dilator, comprising: an outer channel unit and an inner expansion unit;
the outer channel unit comprises a contractible reticular pipeline, the front end of the reticular pipeline comprises a ball, and the rear end of the reticular pipeline forms a horn-shaped opening; the reticular pipeline is formed by crossing a plurality of first spirals formed by rotating in a clockwise direction and a plurality of second spirals formed by rotating in a counterclockwise direction; wherein at least one of the plurality of first spirals and the plurality of second spirals are made of a resilient metal; the diameter of the contracted reticular pipeline is smaller than that of the round ball;
the inner expansion unit comprises a rod body which is made of elastic metal and easy to elastically bend, a cylindrical expansion head is formed at the front end of the rod body, and two ends of the expansion head form arc surfaces; the diameter of the expansion head is far larger than that of the rod body and the round ball;
the inner expanding unit can be inserted into the mesh duct from a trumpet-shaped opening at the rear end of the mesh duct.
2. The catheterization dilator of claim 1, wherein:
a part of the anterior segment surrounding the mesh-like tube is covered with a silicone membrane corresponding to the position of the prostate of the patient.
3. The catheterization dilator of claim 1, wherein:
the rod body is provided with scales to indicate the depth of insertion into the urethra of the patient.
4. The catheterization dilator of claim 1, wherein:
a handle is formed at the rear end of the rod body.
5. The catheterization dilator of claim 1, wherein:
the outer side of the outer channel unit is coated with lidocaine gel.
6. The catheterization dilator of claim 1, wherein:
at least one of said plurality of first spirals is made of a resilient metal; at least one of the plurality of second spirals is made of a resilient metal.
Technical Field
The application relates to a medical instrument, in particular to a catheterization dilator.
Background
The
Disclosure of Invention
In view of the above problems, the present application aims to provide a urethral dilator for urethral dilation, which can flexibly adapt to the physiological curve of the urethra on the one hand, and is not easy to cause injury to the mucosa inside the urethra on the other hand.
The catheterization dilator of the present application, which includes: an outer channel unit and an inner expansion unit;
the outer channel unit comprises a contractible reticular pipeline, the front end of the reticular pipeline comprises a ball, and the rear end of the reticular pipeline forms a horn-shaped opening; the reticular pipeline is formed by crossing a plurality of first spirals formed by rotating in a clockwise direction and a plurality of second spirals formed by rotating in a counterclockwise direction; wherein at least one of the plurality of first spirals and the plurality of second spirals are made of a resilient metal; the diameter of the contracted reticular pipeline is smaller than that of the round ball;
the inner expansion unit comprises a rod body which is made of elastic metal and easy to elastically bend, a cylindrical expansion head is formed at the front end of the rod body, and two ends of the expansion head form arc surfaces; the diameter of the expansion head is far larger than that of the rod body and the round ball;
the inner expanding unit can be inserted into the mesh duct from a trumpet-shaped opening at the rear end of the mesh duct.
Preferably, a portion of the anterior segment, which surrounds the mesh tube, is covered with a silicone membrane, corresponding to the location of the patient's prostate.
Preferably, the shaft body is formed with a scale to indicate a depth of insertion into the urethra of the patient.
Preferably, the rear end of the lever body is formed with a handle.
Preferably, the outer side of the outer channel unit is coated with lidocaine gel.
Preferably, at least one of said plurality of first spirals is made of a resilient metal; at least one of the plurality of second spirals is made of a resilient metal.
The urethral catheterization dilator is designed into an outer channel unit and an inner dilating unit, and a traditional urethral probe is decomposed into two parts to be respectively executed according to the functions of entering the urethra and dilating the prostate. Thus, when inserted into the urethra, the outer path unit can be easily inserted into the urethra because it has a small diameter and does not act to prop open the prostate; after the outer channel unit is inserted into the urethra, the inner expansion unit is inserted into the outer channel unit, at the moment, due to the existence of the reticular pipeline of the outer channel unit, the expansion head of the inner expansion unit advances in the reticular pipeline, and the urethral mucosa is protected by the reticular pipeline; the net-shaped pipeline of the outer channel unit and the rod body made of elastic metal of the inner expanding unit enable the whole urethral catheterization expander to be easily adapted to the physiological curve of the urethra.
Drawings
FIG. 1 is a schematic structural view of a first embodiment of an outer channel unit of a urinary catheter of the present application;
FIG. 2 is a schematic structural view of a second embodiment of an outer channel unit of the subject urinary catheterizing dilator;
FIG. 3 is a schematic structural view of an inner expansion unit of the urinary catheter dilator of the present application;
FIG. 4 is a schematic view of the insertion of the inner stent unit of FIG. 3 into the outer channel unit of FIG. 1;
FIG. 5 is a schematic view of the insertion of the inner stent unit of FIG. 3 into the outer channel unit of FIG. 2;
FIG. 6 is a schematic cross-sectional view of the outer channel unit after the inner stent unit is inserted therein;
figure 7 is a schematic representation of a prior art urethral sound after insertion into the urethra of a male patient.
Detailed Description
Hereinafter, the catheterization dilator of the present application will be described in detail with reference to the accompanying drawings.
The catheterization dilator of the present application, which includes: an
the
In order to facilitate insertion of the
The
The internal expanding
Surrounding a portion of the anterior segment of the mesh-
The rod body 22 is provided with scales to indicate the depth of insertion into the urethra of the patient, so that an operator can clearly understand the insertion depth of the
A
The outer side of the
When in use, the outer channel unit is inserted into the urethra from the urethral orifice of a patient until the ball enters the bladder; and then the internal expansion unit is inserted from the bell mouth of the external channel unit, so that the expansion head stays at the position of the prostate of the urethra to support and expand the position, after a preset time, the internal expansion unit is firstly withdrawn, then the external channel unit is withdrawn, and the ureter is inserted into the urethra of the patient after the external channel unit is withdrawn.
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