CN212439677U

CN212439677U - Prostate expands and splits pipe

Info

Publication number: CN212439677U
Application number: CN201922387773.0U
Authority: CN
Inventors: 余百明
Original assignee: Hangzhou Hanshi Medical Equipment Co ltd
Current assignee: Hangzhou Hanshi Medical Equipment Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2021-02-02
Anticipated expiration: 2029-12-26

Abstract

The utility model relates to a prostate dilation catheter, which comprises a main catheter; a balloon water injection cavity and a catheter main cavity are arranged in the main catheter; the rear ends of the balloon water injection cavity and the catheter main cavity are sequentially and respectively provided with a balloon water injection joint and a catheter water inlet joint; the balloon water injection joint and the catheter water inlet joint are sequentially communicated with the balloon water injection cavity and the catheter main cavity respectively; the front ends of the balloon water injection cavity and the catheter main cavity are provided with balloons; the saccule and the main catheter at the front end of the saccule are made of transparent materials; the utility model discloses simple structure, convenient to use, the main duct of sacculus and sacculus front end is made for transparent material, and it has the endoscope to alternate in the main duct, and the convenience that the endoscope used has been guaranteed to main duct and sacculus and endoscope design of mutually supporting, improves the thinking in the endoscope observation field of vision, and this product has alleviateed the discomfort that the product used greatly, and the cooperation endoscope uses, has reduced the operation risk.

Description

Prostate expands and splits pipe

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to prostate expands and splits pipe.

Background

Prostate hyperplasia is one of the more common diseases in the elderly of men, and with the increasing incidence of senile diseases in the global population, the incidence rate of prostate hyperplasia increases clinically with age, but the clinical symptoms are not necessarily shown when proliferative diseases occur. The clinical symptoms of the patients with prostatic hyperplasia are atypical due to compensation in the early stage of the onset of the disease, the clinical manifestations are gradually obvious along with the aggravation of the lower urinary tract obstruction symptoms, the disease course is relatively slow to progress, and the onset time is difficult to determine. The technology is relatively mature when the transurethral balloon dilatation of prostate is clinically applied to patients with prostatic hyperplasia. The transurethral columnar water sac prostate dilation is an effective, safe, simple and minimally invasive innovative operation method for treating benign prostatic hyperplasia, is an operation method for treating benign prostatic hyperplasia by reserving original organs, has the characteristics of convenient operation, tiny wound and high safety factor, and is especially an ideal choice for old and weak patients who cannot tolerate resection or do not want to resect prostate tissues.

The existing dilation catheter is placed by the personal technology of medical staff, and whether the catheter is placed in place is judged by subjective intuition and experience, so that the operation of placing the catheter is complex, the requirement on the skill of a doctor is high, the deviation rate of placing the catheter is extremely high, inaccurate placement can prevent partial hyperplasia prostate from being dilated, the effect of operation is reduced, and urinary tract injury and urethral injury can be caused by too much dilation of non-prostatic urethra, so that inconvenience is brought to use.

In view of the above technical problems, improvements are needed.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome the defect among the above-mentioned prior art, provide a simple structure, convenient and practical can realize that the visual accurate positioning's of prostate expands and splits pipe.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a prostate dilation catheter comprising a main catheter; a balloon water injection cavity and a catheter main cavity are arranged in the main catheter; the rear ends of the balloon water injection cavity and the catheter main cavity are sequentially and respectively provided with a balloon water injection joint and a catheter water inlet joint; the balloon water injection joint and the catheter water inlet joint are sequentially communicated with the balloon water injection cavity and the catheter main cavity respectively; the front ends of the balloon water injection cavity and the catheter main cavity are provided with balloons; the sacculus and the main catheter at the front end of the sacculus are made of transparent materials.

As a preferable mode of the present invention, a channel for passing an endoscope is formed in the main lumen of the catheter.

As an optimal mode of the utility model, the handle has been cup jointed in the main duct rear end outside, is equipped with sealed cap on the handle, and sacculus water injection connects and pipe water supply connector is located the handle.

As an optimized mode of the utility model, the inflation tube is inserted in the balloon water injection joint, one end of the inflation tube is communicated with the balloon water injection cavity, and the other end is connected with the high-pressure three-way valve.

As an optimal mode of the utility model, a stainless steel guide needle is arranged in the lumen of the balloon water injection cavity and is connected with an inflation tube.

As an optimized mode of the utility model, the outer cover of the water inlet connector of the conduit is connected with a luer protective cap.

As an optimized mode of the utility model, a sealing element is sleeved between the main catheter and the handle.

As an optimized mode of the utility model, the periphery of the main catheter is also provided with a front urethra protection sleeve which is movably sleeved at the periphery of the main catheter and can move axially relative to the main catheter.

As an optimal mode of the utility model, the outer surface superscript of main duct is equipped with the scale that extends along main duct length direction.

As an optimized mode of the utility model, the front end of the main duct adopts an arc-shaped structure.

The utility model has the advantages that:

1. the utility model has simple structure and convenient use, the balloon and the main catheter at the front end of the balloon are made of transparent materials, the endoscope is inserted in the main catheter, the main catheter and the balloon are mutually matched with the endoscope, the use convenience of the endoscope is ensured, the idea of observing the visual field of the endoscope is improved, the discomfort of the product is greatly reduced, and the product is matched with the endoscope to reduce the operation risk;

2. the utility model discloses the scale that extends along main duct length direction is marked on the surface of main duct, uses with inserting the endoscope in the main duct mutually supporting, in the position of controlling the endoscope back vision in order to observe main duct mark scale for the position of accurate definite prostate dilation pipe realizes visual accurate positioning, very big reduction the degree of difficulty of operation, also improved the operation effect simultaneously;

3. the utility model discloses a prostate expands and splits pipe compares with the main duct on the existing market, and the location of main duct is more accurate convenient, can keep fixed after expanding the prostate, guarantees to expand and splits the effect, plays the effect of hemostasis by compression, removes the oppression to outer sphincter, can not excessively damage outer sphincter, prevents urinary incontinence and hemorrhage greatly.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a front view of an embodiment of the present invention;

fig. 3 is a cross-sectional view of an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a main conduit according to an embodiment of the present invention;

reference numbers in the figures: the device comprises a main catheter 1, a balloon water injection cavity 2, a catheter main cavity 3, a balloon 4, an endoscope 5, a handle 6, a sealing cap 7, an inflation tube 8, a high-pressure three-way valve 9, a catheter water inlet joint 10, a sealing piece 11, a front urethra protective sleeve 12, scales 13, a Ruhr protective cap 14, a stainless steel guide needle 15 and a balloon water injection joint 20.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the accompanying drawings.

Example 1:

as shown in fig. 1 to 4, a prostate dilation catheter comprises a main catheter 1; the diameter of the main duct 1 is generally 5-8 mm, the length is 300-500 mm, and the diameter of the front end opening of the main duct 1 is 2-4 mm; a balloon water injection cavity 2 and a catheter main cavity 3 are arranged in the main catheter 1; the rear ends of the balloon water injection cavity 2 and the catheter main cavity 3 are respectively provided with a balloon water injection joint 20 and a catheter water inlet joint 10 in sequence; the balloon water injection joint 20 and the catheter water inlet joint 10 are sequentially communicated with the balloon water injection cavity 2 and the catheter main cavity 3 respectively.

The utility model discloses 4 external diameters phi 6.36 +/-0.05 mm of sacculus. After the sacculus 4 is expanded, the cross section of the sacculus is of a columnar structure, and the length of the sacculus is 44 mm. The length of the saccule 4 is 6.8-11.8 cm, and the width is 12 mm.

In the present embodiment, the diameter of the entire balloon 4 is not more than 9mm in the unused state, and the balloon 4 is cylindrical after expansion in the used state. The balloon 4 has an intraballoon pressure of 0.25 to 0.45MPa, preferably 0.25 to 0.3MPa after inflation. The main catheter 1 can be positioned during the expansion use, so that the balloon 4 can be accurately positioned close to the external sphincter.

The utility model discloses when specifically processing, can scribble emollient outside the pipe main part that splits expands, hydrophilic is smooth promptly. The utility model discloses can realize touch location or thin fiberscope direct vision location. In addition, the utility model discloses can realize disposable water injection, expand and split the procedure smooth.

The front ends of the balloon water injection cavity 2 and the catheter main cavity 3 are provided with a balloon 4; the sacculus 4 and the main catheter 1 at the front end of the sacculus 4 are made of transparent materials; the channel for the endoscope 5 to pass through is formed in the catheter main cavity 3, and in the existing prostate dilation operation, medical staff judge the advancing position of the prostate dilation catheter in the body by only depending on intuition and experience through rectum finger diagnosis and touching the positioning protrusion at the prostate tip or by finger pressing the perineum touch positioning protrusion, but the judging method can cause certain errors due to different obesity degrees of patients. The sacculus 4 and the main catheter 1 at the front end of the sacculus 4 are made of transparent materials; through controlling endoscope 5 to look back to the position of the scale 13 on observation main duct 1 surface, through the affirmation to the scale 13 position, realize expanding the accurate positioning of splitting the pipe to the prostate, avoid among the prior art through touch location protruding or press the position deviation such as that the perineum portion touch location is protruding to judge the prostate and expand the pipe and appear, can improve the location precision, ensure the operation effect.

The utility model discloses simple structure, convenient to use, the main duct of sacculus and sacculus front end is transparent material, and it has the endoscope to alternate in the main duct, and main duct and sacculus and endoscope design of mutually supporting have guaranteed the convenience that the endoscope used, improve the thinking in the endoscope observation field of vision, and this product has alleviateed the discomfort degree that the product used greatly, and the cooperation endoscope uses, has reduced the operation risk.

Specifically, referring to fig. 3, a visual lens 50 is connected to an end portion of the endoscope 5, and the endoscope 5 is inserted into the main catheter cavity 3 of the main catheter 1; and extends out from the opening of the front end of the main duct 1; after insertion of endoscope 5, a medical professional may view through visual lens 50. Medical personnel can observe the position of the endoscope 5 in the main catheter 1 through the visual lens 50, combine the definite to the scale 13 position, when the scale 13 reaches predetermined position department, stop the operation to the prostate dilation catheter, so can realize the visual accurate positioning of prostate dilation catheter.

The periphery of the main catheter 1 is also provided with a front urethra protective sleeve 12 which is movably sleeved on the periphery of the main catheter 1 and can axially move relative to the main catheter 1; in addition, in this embodiment, a handle 6 is sleeved outside the rear end of the main catheter 1, a sealing cap 7 is arranged on the handle 6, and the balloon water injection joint 20 and the catheter water inlet joint 10 are located on the handle 6. The inner wall of the conduit water inlet joint 10 is provided with threads and can be connected with other medical equipment such as a pressure water injector and the like in a screwing mode, and a luer protective cap 14 is sleeved outside the conduit water inlet joint 10. Can play the role of isolating the main catheter 1 from the outside, thereby avoiding the pollution of the prostate dilation catheter with the front opening.

The front end of the main catheter 1 adopts an arc structure, and the front end adopts the arc structure to facilitate catheter placement, so that the side injury of the lower urethra can be avoided, the organ tissues of a patient are prevented from being damaged in the process of catheter implantation, and the pain of the patient caused by the abrasion of the tissues is avoided.

The utility model discloses the scale that extends along main duct length direction is equipped with at the surface superscript of main duct, uses with the endoscope that inserts in the main duct mutually supports, in the position of the main duct mark scale of observation of control endoscope back vision for the position of accurate definite prostate dilation pipe realizes visual accurate positioning, very big reduction the degree of difficulty of operation, also improved the operation effect simultaneously.

An inflation tube 8 is inserted into the balloon water injection joint 20, one end of the inflation tube 8 is communicated with the balloon water injection cavity 2, and the other end is connected with a high-pressure three-way valve 9; a stainless steel guide needle 15 is arranged in a lumen of the balloon water injection cavity 2, and the stainless steel guide needle 15 is connected with the inflation tube 8; the sacculus 4 is injected with water once to form an initial elliptical shape, and when the injected water reaches the shape and the pressure required by the design, the pressure is kept to be greater than or equal to 0.3Mpa so as to reach the elliptical sacculus 4 and the pressure designed in advance. The expanded elliptical crack expanding capsule has a length of 8-13 cm and an outer diameter of 2.5-4.5 cm.

A sealing element 11 is sleeved between the main catheter 1 and the handle 6; the connection sealing performance of the handle, the balloon water injection joint 20 and the catheter water inlet joint 10 is improved, and the use safety of the prostate dilation catheter is further ensured.

Example 2:

the balloon 4 and the main catheter 1 are made of full transparent materials, and an endoscope 5 is inserted into the main catheter 1; in the present embodiment 2, the endoscope 5 is inserted into the main duct 1; sacculus 4 and main catheter 1 are all made of transparent material, look back through control endoscope 5 to observe the position of the scale 13 on main catheter 1 surface, through the affirmation to the scale 13 position, realize the accurate positioning to prostate expansion fracture pipe, avoid among the prior art through the touch location protruding or through pressing the position deviation such as the protruding position deviation that judges prostate expansion fracture pipe appearance of perineum portion touch location, can improve the location precision, ensure the operation effect.

The rest of the present example refers to example 1.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the reference numerals in the figures are used more here: the main catheter 1, the balloon water injection cavity 2, the catheter main cavity 3, the balloon 4, the endoscope 5, the handle 6, the sealing cap 7, the inflation tube 8, the high-pressure three-way valve 9, the catheter water inlet joint 10, the sealing piece 11, the anterior urethra protection sleeve 12, the scales 13, the luer protection cap 14, the stainless steel guide needle 15, the balloon water injection joint 20 and other terms are used, but the possibility of using other terms is not excluded; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. A prostate dilation catheter, characterized in that; comprising a main duct (1); a balloon water injection cavity (2) and a catheter main cavity (3) are arranged in the main catheter (1); the rear ends of the balloon water injection cavity (2) and the catheter main cavity (3) are respectively provided with a balloon water injection joint (20) and a catheter water inlet joint (10) in sequence; the balloon water injection joint (20) and the catheter water inlet joint (10) are sequentially communicated with the balloon water injection cavity (2) and the catheter main cavity (3) respectively; the front ends of the balloon water injection cavity (2) and the catheter main cavity (3) are provided with a balloon (4); the saccule (4) and the main catheter (1) at the front end of the saccule (4) are made of transparent materials; the outer side of the rear end of the main catheter (1) is sleeved with a handle (6), a sealing cap (7) is arranged on the handle (6), and the balloon water injection joint (20) and the catheter water inlet joint (10) are located on the handle (6).

2. The prostate dilation catheter according to claim 1, wherein: a channel for an endoscope (5) to pass through is formed in the main catheter cavity (3).

3. The prostate dilation catheter according to claim 1, wherein: an inflation tube (8) is inserted in the balloon water injection joint (20), one end of the inflation tube (8) is communicated with the balloon water injection cavity (2), and the other end of the inflation tube is connected with a high-pressure three-way valve (9).

4. A prostate dilation catheter according to claim 3, wherein: a stainless steel guide needle (15) is arranged in the lumen of the balloon water injection cavity (2), and the stainless steel guide needle (15) is connected with the inflation tube (8).

5. The prostate dilation catheter according to claim 4, wherein: the water inlet joint (10) of the catheter is externally sleeved with a luer protective cap (14).

6. The prostate dilation catheter according to claim 5, wherein: and a sealing element (11) is sleeved between the main catheter (1) and the handle (6).

7. The prostate dilation catheter according to claim 6, wherein: the periphery of the main catheter (1) is also provided with a front urethra protective sleeve (12) which is movably sleeved on the periphery of the main catheter (1) and can axially move relative to the main catheter (1).

8. The prostate dilation catheter according to claim 7, wherein: the scale (13) extending along the length direction of the main catheter (1) is marked on the outer surface of the main catheter (1).

9. The prostate dilation catheter according to claim 8, wherein: the front end of the main duct (1) adopts an arc-shaped structure.