CN115154694A

CN115154694A - Difficult urethra visual auxiliary urethral catheterization device for urology surgery

Info

Publication number: CN115154694A
Application number: CN202210791255.9A
Authority: CN
Inventors: 刘松林
Original assignee: Jining Jianda Medical Device Technology Co ltd
Current assignee: Jining Jianda Medical Device Technology Co ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-10-11

Abstract

The invention relates to the technical field of medical equipment, in particular to a difficult urethra visual auxiliary urethral catheterization device for urinary surgery. The beneficial effects are that: the urethral catheterization device designed by the invention can effectively improve the hardness of the insertion tube by arranging the middle guide rod in the insertion tube, and simultaneously, the main bending direction of the insertion tube is oriented by the bendable bent rod section, and the wall thickness can be thinner because the insertion tube does not need to provide excessive hardness, so that the section of the insertion tube can be enlarged effectively through urine, and the urination of a patient is facilitated.

Description

Difficult urethra visual auxiliary urethral catheterization device for urology surgery

Technical Field

The invention relates to the technical field of medical equipment, in particular to a difficult urethra visual auxiliary urethral catheterization device for urinary surgery.

Background

Urological patients may have difficulty urinating due to post-operative anesthesia, urinary tract infection, decreased bladder contractility, post-prostatic hyperplasia urethral stricture, etc., and thus the patients must rely on urinary catheterizing devices to assist in urination. The prior urethral catheterization device is mainly inserted into the urethra of a patient depending on the hardness and toughness of an insertion tube, and the insertion tube is kept in the bladder of the patient by the aid of an air bag, so that a thicker tube wall is needed to ensure the hardness and toughness of the insertion tube, and an air tube for supplying air into the air bag is needed to be additionally reserved, so that the section for urination is very small, the time needed by urination of the patient is longer, and the air bag is easy to lose efficacy due to air leakage after being used for a long time, and the insertion tube accidentally slides out of the urethra.

The problem can be solved by inventing a novel urethral catheterization device which can avoid slipping out of the urethra without a balloon, can be inserted into the urethra of a patient more conveniently and can provide a larger effective urination cross section, and therefore, a difficult urethral visual auxiliary urethral catheterization device for urinary surgery is provided.

Disclosure of Invention

The present invention has been made in an effort to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a difficult urethra visualization aid catheterization device for urinary surgery.

In order to achieve the purpose, the invention provides the following technical scheme: a difficult urethra visualization aid catheterization device for urology surgery, the catheterization device comprising:

the medical infusion device comprises an insertion tube, a handheld seat and a liquid butt joint tube, wherein a light guide fiber and an illumination fiber are arranged inside the insertion tube, a liquid channel is formed inside the insertion tube, the bottom of the insertion tube is provided with the handheld seat, the handheld seat is provided with the liquid butt joint tube used for connecting the liquid channel to an external negative pressure pump or a medicine supply pump, a camera corresponding to the light guide fiber is fixedly arranged on the handheld seat, and an illumination lamp corresponding to the illumination fiber is arranged on the handheld seat;

the probe comprises a probe shell arranged at the top of an insertion tube, a light guide channel used for inserting a light guide fiber and an illumination channel used for inserting an illumination fiber are arranged in the probe shell, a visible lens group connected with the light guide fiber is arranged at the tail end of the light guide channel, a spotlight body connected with the illumination fiber is arranged at the tail end of the illumination channel, a fluid butt-joint hole connected with a liquid channel is arranged at the rear end of the probe shell, a flow guide hole connected with the fluid butt-joint hole is arranged at the front end of the probe shell, elastic bags are arranged at the left end and the right end of the probe shell, jacking blocks used for propping open the elastic bags are hinged to the left side and the right side of the probe shell, an extrusion seat used for pushing the jacking blocks to rotate is connected in the fluid butt-joint hole through a jacking spring, and a limit stop block used for limiting the stroke of the extrusion seat is fixed in the fluid butt-joint hole;

the middle guide rod is formed by connecting a straight rod section and a bent rod section which are inserted into the liquid channel, an ejector rod used for ejecting the pressing seat is fixedly installed at the tail end of the bent rod section, the bent rod section is formed by at least three bending units which are connected in series in an end-to-end hinged mode, each bending unit comprises a bending body with a hinged seat at the rear end, the front end of each bending body is hinged to the hinged seat on the adjacent bending body, a limiting block used for limiting the rotating angle is arranged at the hinged position, and the rear end of each bending body is provided with a limiting inclined plane which is convenient for the front end of the adjacent bending body to rotate.

Preferably, the tail end of the liquid channel is provided with a limiting plate for limiting the tail end of the bent rod section, the limiting plate is provided with a first guide hole corresponding to the ejector rod, the limiting stop block is provided with a second guide hole corresponding to the ejector rod, and the jacking block is a V-shaped block.

Preferably, the cross section of the liquid channel is I-shaped, and side plates which are convenient to grasp and distinguish the handheld direction are integrally formed on the left side and the right side of the handheld seat.

Preferably, the visible lens group consists of a protective lens, a diaphragm, an objective lens, a transparent resin interlayer and an eyepiece from the front end of the probe to the tail end of the light guide fiber in sequence, and the light-gathering illuminator consists of a convex resin lens and a parabolic light-gathering cover from the front end of the probe to the illumination fiber in sequence.

Preferably, the cross section of the flow guide hole is elliptical or fan-shaped, and a side through hole communicated with the flow guide hole is formed in the side surface of the probe shell.

Preferably, the rear end of the handheld seat is fixedly provided with a connecting seat through a screw button, the connecting seat is provided with a pair of symmetrically-arranged stepping motors, the output ends of the stepping motors are driven by a driving wheel, a rack meshed with the driving wheel is integrally formed on the straight rod section, and the handheld seat is fixedly provided with a sealing valve used for sealing the tail end of the liquid channel through a screw rod.

Preferably, the bottom chucking of intubate is installed and is connect the urine cover, and connects the top of urine cover to set up and be convenient for will connect the urine cover to fix the ligature hole in patient crotch portion through the ligature area, the bottom intercommunication that connects the urine cover has the delivery pipe, and fixed mounting has the blow-off valve on the delivery pipe.

Compared with the prior art, the invention has the beneficial effects that: the urethral catheterization device designed by the invention can effectively improve the hardness of the insertion tube by arranging the middle guide rod in the insertion tube, and simultaneously, the main bending direction of the insertion tube is oriented by the bendable bent rod section, and the wall thickness can be thinner because the insertion tube does not need to provide excessive hardness, so that the section of the insertion tube can effectively pass through urine is enlarged, thereby facilitating the urination of a patient.

Drawings

FIG. 1 is a schematic structural view of example 1 of the present invention;

FIG. 2 is a sectional view of the structure of embodiment 1 of the present invention;

FIG. 3 is a schematic view showing the structure of an insertion tube according to example 1 of the present invention;

FIG. 4 is a schematic diagram of the structure in region A of FIG. 3;

FIG. 5 is a schematic view showing the structure of an intermediate guide bar in embodiment 1 of the present invention;

FIG. 6 is a schematic view showing the installation of the bending units in embodiment 1 of the present invention;

FIG. 7 is a schematic structural view of a probe in embodiment 1 of the present invention;

FIG. 8 is a schematic vertical sectional view of a probe in embodiment 1 of the present invention;

FIG. 9 is a schematic horizontal sectional view of a probe in embodiment 1 of the present invention;

FIG. 10 is a schematic view showing the structure of the distal end of the probe in example 1 of the present invention;

FIG. 11 is a schematic structural view of example 2 of the present invention;

fig. 12 is a schematic structural view of a urine receiving cover in embodiment 2 of the present invention.

In the figure: 1. a middle guide rod; 101. a straight pole section; 102. a rack; 103. a knee lever section; 104. a top rod; 2. a connecting seat; 3. a liquid butt joint pipe; 4. a hand-held seat; 5. a camera; 6. an insertion tube; 7. a bending unit; 701. a bending body; 702. a limiting block; 703. a hinged seat; 704. a limiting inclined plane; 8. a probe; 801. pressing the block; 802. a fluid docking aperture; 803. a limit stop block; 804. an illumination channel; 805. a second guide hole; 806. a light guide channel; 807. a pressing base; 808. an elastic bag; 809. a probe housing; 810. pressing the spring; 811. a spotlight body; 812. a visible lens group; 813. a flow guide hole; 814. a side through hole; 9. an illuminating lamp; 10. a closing valve; 11. a stepping motor; 12. a driving wheel; 13. a light guide fiber; 14. an illumination fiber; 15. a first guide hole; 16. a limiting plate; 17. a liquid channel; 18. a discharge valve; 19. a urine receiving cover; 20. binding holes; 21. and a discharge pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the technical solutions in the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 10, a difficult urethra visualization auxiliary urethral catheterization device for urology surgery includes:

an insertion tube 6, please refer to fig. 1 to 4, a light guide fiber 13 and an illumination fiber 14 are arranged inside the insertion tube 6, both the light guide fiber 13 and the illumination fiber 14 are made of bendable optical fibers, a liquid channel 17 is arranged inside the insertion tube 6, a handheld seat 4 is arranged at the bottom of the insertion tube 6, the handheld seat 4 is convenient for being operated by a person in a handheld manner, a liquid butt-joint tube 3 for connecting the liquid channel 17 to an external negative pressure pump or a medicine supply pump is arranged on the handheld seat 4, when the patient's bladder needs to be cleaned by liquid medicine, the liquid channel 17 is connected into the medicine supply pump, when the liquid medicine or urine in the patient's bladder needs to be extracted, the liquid channel 17 is connected into the negative pressure pump, a camera 5 corresponding to the light guide fiber 13 is fixedly arranged on the handheld seat 4, the camera 5 receives image signals transmitted by the light guide fiber 3, the image signals are converted into data by the camera and then transmitted to an external computer and a display through a corresponding data line for an operator to observe, the lighting lamp 9 corresponding to the lighting fiber 14 is installed on the handheld seat 4, the lighting lamp 9 adopts an LED lamp, light rays emitted by the lighting lamp are transmitted out through the lighting fiber 14, the cross section of the liquid channel 17 is I-shaped, the shape can avoid further deformation by utilizing the mutual extrusion of the middle protruding area after being pressed, so that the liquid channel 17 is effectively prevented from being extruded by a urethra to be closed in normal work, and side plates convenient for grasping and distinguishing the handheld direction are integrally formed on the left side and the right side of the handheld seat 4;

the probe 8, please refer to fig. 1, 7 to 10, the probe 8 includes a probe housing 809 installed on the top of the insertion tube 6, a light guide channel 806 for inserting the light guide fiber 13 and an illumination channel 804 for inserting the illumination fiber 14 are opened inside the probe housing 809, a visible lens group 812 connected with the light guide fiber 13 is installed at the end of the light guide channel 806, a light gathering and illuminating body 811 connected with the illumination fiber 14 is installed at the end of the illumination channel 804, the visible lens group 812 is composed of a protective lens, a diaphragm, an objective lens, a transparent resin interlayer and an eyepiece in sequence from the front end of the probe 8 to the end of the light guide fiber 13, the visible lens group 812 can converge light into the light guide fiber 13 through a plurality of lenses and then is received by the camera 5, and the light gathering and illuminating body 811 is composed of a convex resin lens and a parabolic light gathering cover in sequence from the front end of the probe 8 to the illumination fiber 14, the spotlight illuminating body 811 can receive light sent by the illuminating fiber 14 and then scatter and irradiate the light to the front area of the probe 8, the rear end of the probe shell 809 is provided with a fluid butt joint hole 802 connected with the liquid channel 17, the front end of the probe shell 809 is provided with a flow guide hole 813 connected with the fluid butt joint hole 802, the cross section of the flow guide hole 813 is in an oval or fan shape, the side surface of the probe shell 809 is provided with a side through hole 814 communicated with the flow guide hole 813, the flow guide hole 813 and the side through hole 814 are used for receiving or sending out urine and liquid medicine, the left end and the right end of the probe shell 809 are both provided with elastic bladders 808, the left side and the right side of the probe shell 809 are both hinged with a jacking block 801 for propping open the elastic bladders 808, the fluid butt joint hole 802 is connected with a squeezing seat 807 for pushing the jacking block 801 to rotate through a jacking spring 810, and a limit stopper 803 for limiting the stroke of the jacking seat 807 is fixed in the fluid butt joint hole 802, the elastic bag 808 can be supported by a film with elasticity such as rubber or silica gel, when the extrusion seat 807 is not extruded from the outside, the extrusion seat can push the jacking block 801 outwards under the pushing of the jacking spring 810, so that the jacking block 801 can prop the elastic bag 808 open to clamp the opening of the urethra in the bladder to prevent the insertion tube 6 from sliding out, and when the extrusion seat 807 is correctly extruded from the ejector rod 104, the elastic bag 808 can retreat backwards, returns to the original position under the action of the self-contraction force, and meanwhile, the jacking block 801 is pushed back to the non-working position;

referring to fig. 2 and 5, the intermediate guide rod 1 is formed by connecting a straight rod section 101 and a bent rod section 103 inserted into a liquid channel 17, and the tail end of the bent rod section 103 is fixedly provided with a top rod 104 for pushing against a pressing seat 807, the tail end of the liquid channel 17 is provided with a limiting plate 16 for limiting the tail end of the bent rod section 103, the limiting plate 16 is used for limiting the stroke of the intermediate guide rod 1, so as to prevent the probe 8 from being pushed off from the insertion tube 6 when the intermediate guide rod 1 is inserted too deeply, the limiting plate 16 is provided with a first guide hole 15 corresponding to the top rod 104, the limiting stopper 803 is provided with a second guide hole 805 corresponding to the top rod 104, the pressing block 801 is a V-shaped block, the bent rod section 103 is formed by at least three bending units 7 hinged in series end to end, the bending unit 7 comprises a bending body with a hinge seat 703 at the rear end, the front end of the bending body 701 is hinged to a hinge seat 703 on an adjacent bending body 701, and a limiting block 702 for limiting the rotation angle is arranged at the hinge position, the rear end of the bending body 701 is provided with a limit inclined plane 704 which facilitates the rotation of the front end of the adjacent bending body 701, the bent rod section 103 formed by connecting the bending units 7 in series can be bent by at least ninety degrees, when ten bending units 7 are connected end to end, only at least ten degrees of inclination need to be provided between the adjacent bending units 7, in order to make the radius required for bending smaller and reduce the oppression on the urethra caused by the length of the bending units 7, the length of the bending units 7 should be reduced as much as possible and the number of the bending units 7 should be increased, so that the bending process of the insertion tube 6 in the urethra is smoother, the rear end of the handheld seat 4 is fixedly provided with the connecting seat 2 through a screw button, the connecting seat 2 is provided with a pair of symmetrically arranged stepping motors 11, and the output end of the stepping motor 11 is driven by a driving wheel 12, and the straight rod section 101 is integrally formed with a rack 102 engaged with the driving wheel 12, the handheld seat 4 is fixedly provided with a closing valve 10 for closing the end of the liquid channel 17 through a screw, when the connecting seat 2 is not installed, the middle guide rod 1 is fixed in the insertion tube 6 through other detachable modes such as clamping by a buckle or a bolt pressing and fixing mode, and is manually pulled out when needing to be pulled out, and when the connecting seat 2 is installed, the process that the middle guide rod 1 is inserted into the liquid channel 17 or pulled out from the liquid channel 17 is controlled by two stepping motors 11, so that the control process is more accurate, and the problem that equipment is damaged or pain is brought to a patient due to the fact that the inserting or pulling speed is too fast is avoided.

When the device is used, the middle guide rod 1 is correctly inserted into the liquid channel 17, so that the ejector rod 104 can push against the extrusion seat 807, the elastic sac 808 is prevented from being expanded, then an operator opens the camera 5 and accesses the camera into a computer, and then opens the illuminating lamp 9, and connects the liquid butt joint pipe 3 into a negative pressure pump or a medicine supply pump, at the moment, after the bendable direction of the middle guide rod 1 is distinguished through the handheld seat 4, the insertion pipe 6 can be inserted from the urethral orifice, the middle guide rod 1 can provide enough hardness for the insertion pipe 6, so that the extrusion force at the rear can be correctly transmitted to the probe 8 part, the probe 8 can be conveniently and gradually deeply inserted into the urethral orifice, the bending capacity provided by the bent rod section 103 can be effectively changed into natural bending along with the bending of the urethral orifice, and the urethral orifice can only be bent along the up-down direction and can not be bent in the left-right direction, and therefore, the bending function provided by the middle guide rod 1 can effectively send the probe 8 into the urinary bladder along with the bending of the urethral orifice. In the process of inserting the insertion tube 6, an operator can slightly adjust the insertion angle at any time by observing the image transmitted by the camera 5 so as to conveniently and correctly insert the probe into the urethra, after the probe 8 is sent into the bladder, the middle guide rod 1 is pulled out of the insertion tube 6 by the stepping motor 11, the insertion tube 6 is made of a rubber tube or a plastic tube which is soft in texture but has enough toughness and axial pressure resistance, therefore, in the process of pulling out the middle guide rod 1, the outer part of the insertion tube 6 cannot be greatly deformed, meanwhile, the urethra and the middle guide rod 1 are separated by the insertion tube 6 so that the urethra cannot be damaged in the process of inserting and pulling out, after the middle guide rod 1 is pulled out, the liquid channel 17 can be used for discharging urine or sending liquid medicine, meanwhile, the elastic bag 808 can be propped open under the extrusion of the jacking block 801 so as to prevent the insertion tube 6 from sliding out of the urethra, the probe 8 can be conveniently left in the bladder of the patient for a long time, and then the urine or the liquid medicine in the bladder can be pumped by an external negative pressure pump or a medicine pump. When the insertion tube 6 needs to be pulled out, the middle guide rod 1 needs to be inserted back into the liquid channel 17 again to be used for propping against the extrusion seat 807, the urethra and the middle guide rod 1 are used for placing the insertion tube 6, so that the urethra is not damaged in the insertion process, pain is not brought to a patient, a guide path can be formed due to the special matching shape between the middle guide rod 1 and the liquid channel 17, fine adjustment of the insertion direction is not needed, and in order to prevent the tail end of the insertion tube 6 from rotating in the urethra of the patient after the middle guide rod 1 is pulled out, the cross section of the insertion tube 6 can be made into an oval shape. The urinary catheterization device designed by the invention can effectively improve the hardness of the insertion tube 6 by arranging the middle guide rod 1 in the insertion tube 6, and simultaneously, the main bending direction of the insertion tube 6 is oriented by the bendable bent rod section 103, and the wall thickness can be thinner because the insertion tube 6 does not need to provide excessive hardness, so that the section of the insertion tube 6, through which urine can effectively pass, is enlarged, thereby facilitating the urination of patients.

Example 2

Referring to fig. 11 and 12, in this embodiment, compared with embodiment 1, the bottom of the insertion tube 6 is tightly fitted with a urine receiving cover 19, and the top of the urine receiving cover 19 is opened with a banding hole 20 for fixing the urine receiving cover 19 on the crotch of the patient by a banding band, the bottom of the urine receiving cover 19 is communicated with a discharge tube 21, and the discharge tube 21 is fixedly fitted with a discharge valve 18. Connect urine cover 19 can effectually connect to get by the urine that oozes between insert tube 6 and the urethra, also can be simultaneously when extracting insert tube 6 direct connect get by urethra exhaust urine, thereby the patient also can will connect urine cover 19 to fix through the ligature area and not only can conveniently connect and get the urine at crotch portion, also conveniently connect urine cover 19 and human body after fixed stay internal device with insert tube 6 in, provide the pulling force of avoiding insert tube 6 roll-off urethra by connecting urine cover 19 and insert tube 6 fixed department. The discharge valve 18 and the discharge pipe 21 are used for discharging the excess urine in the urine receiving cover 19.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A difficult urethra visualization aid catheterization device for urology surgery, comprising:

the medical liquid injection device comprises an insertion tube (6), wherein a light guide fiber (13) and an illumination fiber (14) are arranged inside the insertion tube (6), a liquid channel (17) is formed inside the insertion tube (6), a handheld seat (4) is installed at the bottom of the insertion tube (6), a liquid butt joint tube (3) used for connecting the liquid channel (17) to an external negative pressure pump or a medicine supply pump is installed on the handheld seat (4), a camera (5) corresponding to the light guide fiber (13) is fixedly installed on the handheld seat (4), and an illumination lamp (9) corresponding to the illumination fiber (14) is installed on the handheld seat (4);

the probe (8) comprises a probe shell (809) installed at the top of the insertion tube (6), a light guide channel (806) used for inserting a light guide fiber (13) and an illumination channel (804) used for inserting an illumination fiber (14) are formed in the probe shell (809), a visible lens group (812) connected with the light guide fiber (13) is installed at the tail end of the light guide channel (806), a spotlight body (811) connected with the illumination fiber (14) is installed at the tail end of the illumination channel (804), a fluid butt joint hole (802) connected with the liquid channel (17) is formed in the rear end of the probe shell (809), a flow guide hole (813) connected with the fluid butt joint hole (802) is formed in the front end of the probe shell (809), elastic capsules (808) are arranged at the left end and the right end of the probe shell (809), a position limiting block (807) used for propping open the elastic capsules (808) is hinged to the left side and the right side of the probe shell (809), a position limiting block (807) used for pushing the press seat (803) for pushing the press block (801) is connected with a pressing spring (810) in the position limiting seat (807);

middle guide arm (1), middle guide arm (1) is connected by straight pole section (101) and curved pole section (103) that insert in liquid passage (17) and is constituteed, and the terminal fixed mounting of curved pole section (103) has ejector pin (104) that are used for the ejection to press seat (807), curved pole section (103) comprise the articulated unit of buckling (7) of establishing ties of at least three head and the tail, and buckle unit (7) including rear end have articulated body (701) of hinging seat (703), and the front end of the body of buckling (701) is articulated with articulated seat (703) on the adjacent body of buckling (701) and is provided with stopper (702) that are used for restricting turned angle in articulated position department, the rear end of the body of buckling (701) is provided with the spacing inclined plane (704) that makes things convenient for the front end of adjacent body of buckling (701) to rotate.

2. A difficult urethra visualization aid urethral catheterization device for urology surgery according to claim 1, characterized in that: the tail end of the liquid channel (17) is provided with a limiting plate (16) used for limiting the tail end of the bent rod section (103), a first guide hole (15) corresponding to the ejector rod (104) is formed in the limiting plate (16), a second guide hole (805) corresponding to the ejector rod (104) is formed in the limiting stop block (803), and the jacking block (801) is a V-shaped block.

3. A difficult urethra visualization aid catheterization device for urinary surgery as claimed in claim 1, characterized in that: the cross section of the liquid channel (17) is I-shaped, and side plates which are convenient to grasp and distinguish the handheld direction are integrally formed on the left side and the right side of the handheld seat (4).

4. A difficult urethra visualization aid catheterization device for urinary surgery as claimed in claim 1, characterized in that: the visual lens group (812) consists of a protective lens, a diaphragm, an objective lens, a transparent resin interlayer and an eyepiece from the front end of the probe (8) to the tail end of the light guide fiber (13) in sequence, and the light-gathering illuminator (811) consists of a convex resin lens and a parabolic light-gathering cover from the front end of the probe (8) to the illumination fiber (14) in sequence.

5. A difficult urethra visualization aid urethral catheterization device for urology surgery according to claim 1, characterized in that: the cross section of the flow guide hole (813) is in an oval shape or a fan shape, and a side through hole (814) communicated with the flow guide hole (813) is formed in the side surface of the probe shell (809).

6. A difficult urethra visualization aid catheterization device for urinary surgery as claimed in claim 1, characterized in that: the rear end of handheld seat (4) has connecting seat (2) through knob fixed mounting, and installs a pair of symmetrical arrangement's step motor (11) on connecting seat (2), the output drive of step motor (11) has action wheel (12), and integrated into one piece has rack (102) of being connected with action wheel (12) meshing on straight rod section (101), fixed mounting is used for sealing terminal closed valve (10) of liquid passage (17) through the screw rod on handheld seat (4).

7. A difficult urethra visualization aid catheterization device for urinary surgery as claimed in claim 1, characterized in that: the bottom chucking of intubate (6) is installed and is connect urine cover (19), and connects the top of urine cover (19) to set up and be convenient for will connect urine cover (19) to fix in ligature hole (20) of patient crotch portion through the ligature area, the bottom intercommunication that connects urine cover (19) has delivery pipe (21), and fixed mounting has blow-off valve (18) on delivery pipe (21).