CN113425916A

CN113425916A - Cross three-cavity catheter

Info

Publication number: CN113425916A
Application number: CN202110501502.2A
Authority: CN
Inventors: 王怡君
Original assignee: Second Affiliated Hospital and Yuying Childrens Hospital of Wenzhou Medical University
Current assignee: Second Affiliated Hospital and Yuying Childrens Hospital of Wenzhou Medical University
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-09-24
Anticipated expiration: 2041-05-08
Also published as: CN113425916B

Abstract

The invention relates to the technical field of urinary catheters, in particular to a cross-shaped three-lumen urinary catheter, comprising a tubular body, one end of the tubular body is connected with a guide tube head, and the guide tube head is provided with a mounting device For the airbag on the tubular body, the outer wall of the guide tube head is provided with two flushing ports; the other end of the tubular body is connected with an inflation connector, a water injection connector and a urinary catheter connector, and the inflation connector is connected to the trachea through the trachea. The air bag, the water injection joint is connected to the flushing port through a water pipe, the end of the guide tube head has an opening, the opening has a built-in cross shaft, and the cross shaft cooperates with the guide tube head to form four guide tubes. Urinary openings, the four urinary catheterization openings are all communicated with the urinary catheterization joint through the inner cavity of the same tubular body. The present application adopts a special cross-shaped urinary catheter structure design, which has the technical effect of preventing clogging.

Description

Cross three-cavity catheter

Technical Field

The invention relates to the technical field of catheters, in particular to a cross three-cavity catheter.

Background

The catheter is an appliance made of natural rubber, silicon rubber or polyvinyl chloride, and can be inserted into the bladder through the urethra to drain urine. The three-cavity catheter is provided with a tubular body, one end of the tubular body is provided with a guiding tube head for being inserted into the urethra, an air bag is arranged near the guiding tube head, and the catheter is fixed in the urethra and is not easy to fall off when the air bag is inflated; the other end is provided with three pipeline joints which are respectively an inflation joint, a water injection joint and a urethral catheterization joint, the inflation joint is communicated with the air bag through an air bag ventilation pipeline in the tubular body and is used for inflating the air bag, the water injection joint is communicated with a flushing port at the head end of a water injection pipeline guide pipe in the tubular body and is used for flushing the bladder to prevent urinary infection, and the urethral catheterization joint is communicated with the tubular body and is used for connecting a urine bag to discharge urine.

Through the retrieval, chinese patent publication No. CN206103102U discloses a three-cavity catheter, including a tubulose body, the one end of tubulose body is for guiding the tube head, and nearly guide the tube head and be equipped with the gasbag, and the other end of tubulose body is equipped with inflation joint, water injection joint and catheterization joint, inflation joint is through gasbag vent line intercommunication gasbag to the direction that faces human upper portion during the use is the top, is equipped with on the upper portion of guiding the tube head and washes the mouth, the water injection joint is connected to washing the mouth through the internal water injection pipeline of tubulose body, is equipped with the catheterization mouth in the lower part of guiding the tube head, and the catheterization mouth communicates with tubulose body inner chamber. The invention has better flushing effect, can avoid stimulating the trigone of the bladder, is not easy to cause bladder spasm, relieves the pain of patients, has better drainage effect, can reduce the residual urine volume, reduces the incidence of secondary urinary tract infection and is convenient for medical workers to operate.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: if a patient has bloody urine, one end of the catheter is inserted into the bladder of the human body and cannot be discharged, because blood clots can block the catheter, and once a large amount of blood clots are accumulated in the bladder, distending pain can be caused, so that improvement is needed.

Disclosure of Invention

The invention provides a cross three-cavity catheter which adopts a special cross urethral catheterization opening structure design and has the technical effect of blockage prevention.

The application provides a pair of cross three chamber catheters adopts following technical scheme: a cross three-cavity catheter comprises a tubular body, wherein one end of the tubular body is connected with a guide tube head, an air bag arranged on the tubular body is arranged at the guide tube head, and two flushing ports are formed in the outer wall of the guide tube head; the other end of tubulose body is connected with inflation joint, water injection joint and catheterization joint, inflation joint passes through the trachea and connects in the gasbag, the water injection connects through the water piping connection in washing the mouth, the tip of guide tube head has an opening, the opening embeds there is the cross axle, the cross axle cooperatees with the guide tube head in order to form four catheterization mouths, four the catheterization mouth all is linked together with the catheterization joint through same tubulose body inner chamber

Optionally, the water injection joint is internally thread-fitted with a connecting pipe, an embedding hole is formed in one end, far away from the water injection joint, of the connecting pipe, the aperture of the embedding hole is larger than the inner diameter of the connecting pipe, and a cushion is inserted into the embedding hole.

Optionally, the embedding hole is internally provided with a pressing ring in threaded fit, and the pressing ring compresses the cushion on the hole wall at the bottom of the embedding hole.

Optionally, the compression ring is fixedly sleeved with a rotating ring, and the outer diameter of the rotating ring is larger than that of the connecting pipe.

Optionally, two grooves are arranged on the wall of the bottom hole of the embedding hole, and an ejection spring is placed in each groove; when the press ring presses the soft cushion on the wall of the bottom hole of the embedding hole, the ejection spring is in a compressed state.

Optionally, still locate the outside flexible protection stopper of tubulose body including the cover, the one end of protection stopper orientation guide tube head is provided with the holding tank, the holding tank embeds there is the mushroom head that is used for conflicting the urethral orifice position of male sex organ, the mushroom head can with holding tank sliding fit, the middle part of mushroom head is provided with the hole of stepping down that can supply the tubulose body to pass.

To sum up, the application comprises the following beneficial technical effects: in this application, the tip of innovative adoption at the guide tube head sets up the opening, and utilizes the cross axle to divide into four catheterization mouths with this opening to increase the flow of catheterization mouth, and then avoid the clot to block up the catheter completely, in order to realize preventing the technological effect of jam.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present application;

FIG. 2 is a schematic sectional view showing the head end of a guide tube in example 1 of the present application;

FIG. 3 is a schematic sectional view showing a water injection joint in example 1 of the present application;

FIG. 4 is a schematic view of the overall structure of embodiment 2 of the present application;

fig. 5 is a schematic view of the internal structure of the protective plug of embodiment 2 of the present application;

fig. 6 is a structural sectional view in another state of fig. 5.

Reference numerals:

1. a tubular body; 2. a guide tube head; 3. a protective plug; 4. accommodating grooves; 5. mushroom heads; 6. a hole of abdication; 7. a micro-atomizer; 8. a drive assembly; 9. a sliding block; 10. a positive electrode conductive block; 11. a sliding cavity; 12. a communicating cavity; 13. an atomizing chamber; 14. a spring; 15. a mist outlet channel; 16. a spray channel; 17. a spray orifice; 18. a negative conducting ring; 19. a plug body; 20. mounting a plate;

21. an air bag; 22. flushing the opening; 23. an inflation joint; 24. a water injection joint; 25. a urinary catheterization joint; 26. a cross shaft; 27. a urethral catheterization opening; 28. a connecting pipe; 29. embedding holes; 30. a soft cushion; 31. linear incision; 32. pressing a ring; 33. a rotating ring; 34. a groove; 35. and ejecting the spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

Example 1: the embodiment of the application discloses a cross three-cavity catheter.

As shown in fig. 1-3, a cross three-cavity catheter comprises a tubular body 1, one end of the tubular body 1 is connected with a guiding tube head 2, an air bag 21 mounted on the tubular body 1 is arranged at the guiding tube head 2, and two flushing ports 22 are arranged on the outer wall of the guiding tube head 2; the other end of the tubular body 1 is connected with an inflation connector 23, a water injection connector 24 and a catheterization connector 25, the inflation connector 23 is connected with the air bag 21 through an air pipe, and the water injection connector 24 is connected with the flushing port 22 through a water pipe.

The end of the guide tube head 2 has an opening in which a cross 26 is arranged, the cross 26 cooperates with the guide tube head 2 to form four catheter ports 27, and the four catheter ports 27 are all communicated with the catheter adapter 25 through the same inner cavity of the tubular body 1.

In this application, the innovative adoption sets up the opening at the tip of guide tube head 2, and utilizes cross axle 26 to divide into four catheterization mouth 27 with this opening to increase catheterization mouth 27's flow, and then avoid the blood clot to block up the catheter completely, in order to realize preventing the technological effect of jam.

Furthermore, the water injection connector 24 is internally threaded with a connecting pipe 28, one end of the connecting pipe 28, which is far away from the water injection connector 24, is provided with an embedding hole 29, the aperture of the embedding hole 29 is larger than the inner diameter of the connecting pipe 28, a soft cushion 30 is inserted in the embedding hole 29, and the soft cushion 30 is provided with a linear notch 31.

It should be noted that: in this application, cushion 30 is for the rubber buffer in the injection bottle, can realize the injection to in the injection bottle in inserting the syringe needle of syringe into the rubber buffer, and cushion 30 will take place deformation and wrap up the syringe needle of syringe, and the condition that reduces the weeping takes place. When the syringe needle is pulled out, the rubber plug can restore to the initial state to block the linear cut 31, thereby realizing sealing. The cushion 30 is prior art and will only be briefly described herein.

Furthermore, the embedded hole 29 is internally threaded with a pressing ring 32, and the pressing ring 32 presses the cushion 30 on the bottom hole wall of the embedded hole 29, so that the stability of the cushion 30 is improved.

Furthermore, a rotating ring 33 is fixedly sleeved on the pressing ring 32, the outer diameter of the rotating ring 33 is larger than that of the connecting pipe 28, and the pressing ring 32 can be screwed out from the embedding hole 29 by rotating the rotating ring 33, so that the cushion 30 can be replaced.

Further, the linear cut 31 is located at the axial center of the cushion 30, and preferably: the linear cut 31 is disposed coaxially with the cushion 30.

Furthermore, two grooves 34 are arranged on the bottom hole wall of the embedding hole 29, and an ejection spring 35 is placed in each groove 34. When the press ring 32 presses the soft cushion 30 against the bottom hole wall of the embedding hole 29, the ejection spring 35 is in a compressed state; when the press ring 32 is rotated to be separated from the embedding hole 29, the ejection spring 35 returns to the natural state and ejects the cushion 30 out of the embedding hole 29, thereby facilitating the replacement of the cushion 30.

Example 2:

the difference from example 1 is that, since the catheter and the urethral orifice have an inevitable gap, when the catheter is left for a long time, germs easily enter from the urethral orifice, and urinary tract infection, cystitis, and the like are caused. Based on this problem, an improvement is made in the present embodiment.

As shown in fig. 4-6, a cross three-cavity catheter comprises a flexible protective plug 3 sleeved outside a tubular body 1, wherein an accommodating groove 4 is formed in one end, facing a guide tube head 2, of the protective plug 3, a mushroom head 5 used for abutting against the urethral orifice of a male genital organ is arranged in the accommodating groove 4, the mushroom head 5 can be in sliding fit with the accommodating groove 4, and a abdicating hole 6 for the tubular body 1 to pass through is formed in the middle of the mushroom head 5.

In this embodiment, the mushroom head is selected to match the position of the male genital urethral orifice to prevent germs from entering from the urethral orifice. Specifically, the following are mentioned: the mushroom head and the protective plug are used after being sterilized.

Further, a micro atomizer 7 capable of atomizing local anesthetic and a driving assembly 8 for opening and closing the micro atomizer 7 are arranged in the protective plug 3; when the male genitals are erect to drive the mushroom heads 5 towards the receiving grooves 4, the drive assembly 8 activates the micro-atomisers 7 to disperse the local anaesthetic in the form of an aerosol over the male genitals to reduce their sensitivity.

The penis is normally physiological and still erectly functional during the indwelling of the catheter. The reason for erection involves not only external stimuli but also psychological causes of the patient. When a patient is inserted with a catheter and then is erect, the cavernous body of the patient is congested, so that the catheter remained in the urethra is easily pressed, and pain is easily caused. Moreover, the patient can feel embarrassed when in the genital erection state, which is not beneficial to rehabilitation treatment.

Therefore, in the present embodiment, the movable mushroom head 5 structure is creatively adopted, and since the mushroom head 5 is continuously abutted against the urethral orifice position of the male genitals. After the male genitals are erected abnormally, force is applied to the mushroom heads 5, so that the mushroom heads 5 are driven to move towards the accommodating grooves 4; at this time, the driving assembly 8 judges the displacement condition of the mushroom head 5 to realize the opening and closing of the micro atomizer 7, and atomizes and sprays the local anesthetic to scatter on the male genitals to reduce the sensitivity of the male genitals. Specifically, the method comprises the following steps: the local anesthetic may be 2% lidocaine. In addition, the micro atomizer 7 is an atomizer with a liquid to be atomized therein, which is the prior art and will not be described in detail herein.

Further, drive assembly 8 includes sliding block 9, sliding block 9's one end in holding tank 4 with mushroom head 5 fixed connection, sliding block 9's the other end can be dismantled and be connected with anodal conducting block 10, and protection stopper 3 embeds has sliding chamber 11, intercommunication chamber 12 and atomizing chamber 13, and miniature atomizer 7 arranges atomizing chamber 13 in. One end of the sliding cavity 11 is communicated with the communicating cavity 12, and the sliding block 9 can be connected with the sliding cavity 11 in a sliding way. The positive conductive block 10 is located in the communicating cavity 12, the cross-sectional area of the positive conductive block 10 is larger than that of the sliding block 9, so that the positive conductive block 10 can only move in the communicating cavity 12 in a reciprocating mode, a spring 14 is arranged on one side, away from the sliding block 9, of the positive conductive block 10, and the other end of the spring 14 is connected with the inner wall of the communicating cavity 12.

The protective plug 3 is also internally provided with a mist outlet channel 15 communicated with the atomizing cavity 13 and the sliding cavity 11, the sliding block 9 is internally provided with a mist spraying channel 16 communicated with the mushroom head 5 and the sliding cavity 11, and the mushroom head 5 is provided with a mist spraying hole 17 communicated with the mist spraying channel 16. The sliding block 9 slides relative to the protective plug 3 and has a first position in which the spray passage 16 and the mist outlet passage 15 are communicated and a second position in which the spray passage 16 and the mist outlet passage 15 are isolated from each other.

The communicating cavity 12 is further provided with a negative conducting ring 18, the negative conducting ring 18 is electrically connected with the negative switch of the micro atomizer 7 through a conducting wire, and the positive conducting block 10 is electrically connected with the positive switch of the micro atomizer 7 through a conducting wire. The negative conductive ring 18, the switch of the micro atomizer 7 and the positive conductive block 10 form a complete circuit loop.

Further, when the mushroom head 5 is not pressed by the genitals, the spring 14 is in an extension state, the side of the positive conductive block 10 facing the sliding block 9 is abutted against the inner wall of the communication cavity 12, and the sliding block 9 is in a second position state.

Further, when the mushroom head 5 is pressed by the genitals until the negative conductive ring 18 contacts with the positive guide block, the micro atomizer 7 starts to work, so as to atomize the built-in liquid local anesthetic and accumulate the concentration in the atomizing cavity 13. At this time, the spring 14 is in a compressed state, and the slider 9 is in the first position state.

Further, when one side of the positive conductive block 10 facing the sliding block 9 abuts against the inner wall of the communication cavity 12, the maximum distance between the positive conductive block 10 and the negative conductive ring 18 is 2-3 cm. In the present application, 2.5cm is preferred.

Further, the number of the spray holes 17 formed in the mushroom head 5 may be several, and one end of the several spray holes 17 is communicated with the same spray passage 16. Through setting up a plurality of spraying hole 17 to realize better spraying aerial fog on the genital surface.

Further, in the present application, the number of the driving assemblies 8 may be one or two. When there are two driving assemblies 8, the two driving assemblies 8 may be symmetrically disposed on two sides of the axial line of the abdicating hole 6. Specifically, the method comprises the following steps: the two driving assemblies 8 can be respectively provided with a micro atomizer 7; it is also possible that two driving assemblies 8 share one micro atomizer 7, and the atomizing chambers in the two driving assemblies 8 are communicated with each other (as shown in fig. 5 and 6). The above should be all covered by the scope of protection of the present application.

Further, the protective plug 3 comprises a plug body 19 and a mounting plate 20 detachably connected with the plug body 19, and the plug body 19 and the mounting plate 20 enclose to form a communication cavity 12 and an atomization cavity 13. In a specific application, the installation of the components can be realized by opening the installation plate 20 to expose the communication cavity 12 and the atomization cavity 13.

Further, one end of the spring 14 abuts against the positive electrode conductive block 10, and the other end of the spring 14 abuts against the mounting plate 20. The spring 14 is made of a non-metallic material, such as plastic. So that the spring 14 is not electrically conductive.

Further, when the mushroom head 5 is not pressed by the genitals, the side of the positive conductive block 10 facing the sliding block 9 abuts against the inner wall of the communication cavity 12. At this time, F spring 14 ═ G mushroom head 5+ G slider 9.

At this time, the sum of the elastic force of the spring 14 and the gravity of the mushroom head 5 and the slider 9 is in a balanced state. The balance is broken as soon as the genitals are lifted up to exert pressure on the mushroom head 5, so as to effect displacement of the sliding mass 9.

Further, the mushroom head 5 is made of silicone.

Further, the inner diameter of the accommodating groove 4 ranges from 4.0 cm to 4.5 cm.

Furthermore, the protective plug 3 is detachably and fixedly connected with the tubular body 1.

Further, one side of the negative conductive ring 18 is slidably connected to the inner wall of the communication cavity 12, and a return spring (not shown in the drawings) is disposed between the negative conductive ring 18 and the mounting plate 20.

Because the length of each male genital organ varies before and after erection, if the negative conductive ring 18 is fixed on the inner wall of the communicating cavity 12 in a fixed manner, the mushroom head 5 will have a reverse acting force on part of the male genital organs, which may cause discomfort to the patient. The problem can be solved by installing the negative conducting ring 18 in a sliding fit manner and supporting the negative conducting ring 18 by the return spring. In the above process, the negative conductive ring 18 and the positive conductive block 10 are always in contact.

When the return spring is in an extended state (i.e. under the condition that the negative conductive ring 18 has no external force), the maximum distance between the positive conductive block 10 and the negative conductive ring 18 is 2-3 cm. In the present application, 2.5cm is preferred.

Furthermore, an air pressure sensor (not shown in the attached drawings) is arranged in the aerosol cavity, a display connected with the air pressure sensor in a signal mode is arranged outside the protective plug 3, and the display can display the air pressure state in the aerosol cavity. The above is the prior art, and detailed description is not given here.

The application process comprises the following steps:

s1, medical staff wear medical gloves, the spray channel 16 is firstly sealed by hands, then the mushroom head 5 is manually pressed, the negative conducting ring 18 is in contact with the positive conducting block 10, the micro atomizer 7 starts to work, local anesthetic starts to be atomized and carries out aerosol accumulation in the atomizing cavity 13 until the air pressure in the atomizing cavity 13 is higher than the external atmospheric pressure;

s2, releasing the press of the hand on the mushroom head 5 to enable the mushroom head 5 to recover the initial state under the action of the spring 14, and enabling the sliding block 9 to change from the first position state to the second position state to enable the local anesthetic in the atomizing cavity 13 to remain in an aerosol state;

s3, the catheterization operation is performed so that one side of the mushroom head 5 is in contact with the position of the urethral orifice of the male genitalia.

In the above, the catheterization procedure is consistent with the conventional catheterization method.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A cross-shaped three-lumen urinary catheter, comprising a tubular body (1), one end of the tubular body (1) is connected with a guide tube head (2), and the guide tube head (2) is provided with An airbag (21) mounted on a tubular body (1), two flushing ports (22) are opened on the outer wall of the guide tube head (2); the other end of the tubular body (1) is connected with an inflation joint (23), a water injection joint (24) and a catheterization joint (25), the inflation joint (23) is connected to the air bag (21) through a trachea, and the water injection joint (24) is connected to the flushing port (22) through a water pipe, It is characterized in that: the end of the guide tube head (2) has an opening, the opening has a built-in cross shaft (26), and the cross shaft (26) cooperates with the guide tube head (2) to form The four urinary catheter ports (27) are all communicated with the urinary catheter joint (25) through the inner cavity of the same tubular body (1).

2. A cross-type three-lumen urinary catheter according to claim 1, characterized in that: the water injection joint (24) is fitted with a connecting pipe (28) in the inner thread, and the connecting pipe (28) is away from the water injection One end of the joint (24) is provided with an embedded hole (29), the diameter of the embedded hole (29) is larger than the inner diameter of the connecting pipe (28), and a cushion (30) is inserted into the embedded hole (29). ).

3. A cross-shaped three-lumen urinary catheter according to claim 2, characterized in that a pressure ring (32) is fitted with the inner thread of the embedded hole (29), and the pressure ring (32) will hold the The soft pad (30) is pressed against the bottom hole wall of the embedded hole (29).

4. A cross-shaped three-lumen urinary catheter according to claim 3, characterized in that: a rotating ring (33) is fixedly sleeved on the pressure ring (32), and the outer surface of the rotating ring (33) is The diameter is larger than the outer diameter of the connecting pipe (28).

5. A cross-shaped three-lumen urinary catheter according to claim 4, wherein the bottom hole wall of the embedded hole (29) is provided with two grooves (34), the grooves (34) An ejection spring (35) is placed inside; when the pressing ring (32) presses the cushion (30) against the bottom hole wall of the embedded hole (29), the ejection spring (35) ) will be in a compressed state.

6. A cross-shaped three-lumen urinary catheter according to claim 1, characterized in that: further comprising a flexible protective plug (3) sleeved on the outside of the tubular body (1), the protective plug (3) facing the One end of the guide tube head (2) is provided with an accommodating groove (4), and the accommodating groove (4) has a built-in mushroom head (5) used to interfere with the position of the urethral opening of the male genitalia, and the mushroom head (5) can be combined with The accommodating groove (4) is slidably fitted, and the middle part of the mushroom head (5) is provided with an escape hole (6) through which the tubular body (1) can pass.