CN112933308B

CN112933308B - Catheter

Info

Publication number: CN112933308B
Application number: CN202110144960.5A
Authority: CN
Inventors: 贾颖必
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: 2021-02-02
Filing date: 2021-02-02
Publication date: 2023-03-03
Anticipated expiration: 2041-02-02
Also published as: CN112933308A

Abstract

The invention discloses a catheter, which is provided with a debugging mechanism, wherein the debugging mechanism comprises a shell, a rotary core and a one-way valve, the rotary core is rotatably arranged in a cavity of the shell, the upper side and the lower side of the cavity are outwards communicated to form a flow channel for urine to pass through, the one-way valve is arranged in the rotary core, and the one-way valve is arranged in an initial state to prevent liquid from flowing into a urethral catheterization cavity and prevent the liquid from flowing out of the urethral cavity; the rotating core is provided with a debugging module, the shell is also provided with a jack and a debugging hole for an external mechanism to be inserted and connected, the jack is communicated with the flow passage, and the debugging hole is communicated with the debugging module; when the external mechanism is inserted into the jack, the connection is completed, when the debugging piece of the external mechanism is continuously inserted into the debugging hole to drive the debugging module, the rotating core rotates, the one-way valve is debugged to a second state, and the one-way valve supplies liquid to flow out of the urethral catheterization cavity and prevents the liquid from flowing into the urethral catheterization cavity in the second state. The invention simplifies the original multi-pipeline arrangement mode of the catheter, is convenient to use and is not easy to make mistakes in operation.

Description

Catheter

Technical Field

The invention relates to the field of medical instruments, in particular to a catheter.

Background

A urinary catheter is a tubular medical device that is inserted into the bladder via the urethra and drains urine. The existing catheter is basically of a two-layer structure, wherein one layer of large space is used for catheterization, the other layer of small space is used for inflation, the inflation space is communicated to an inflation bag on the catheter, and the inflation bag is used for inflating and expanding the catheter after the catheter is inserted into the bladder so as to position the catheter in the bladder, and therefore continuous catheterization can be performed on a patient. Current catheter can set up a plurality of pipelines such as feed liquor pipe, drain pipe for the different functions of butt joint, then sets up the function that the check valve realized one-way liquid flow on the pipeline, and the butt joint that is convenient for manage and correspond is used. Because of setting up a plurality of pipelines, increased the complexity of catheter itself, and the business turn over orientation of check valve is different, makes external mechanism for example wash mechanism, collection urine mechanism, collection mechanism can not connect the mistake, connects the mistake and will lead to the function unable realization. If can design a mechanism of butt joint, can debug the orientation of check valve automatically when catheter and external mechanism butt joint, can simplify structure and operation, more convenient to use.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides a catheter, which is characterized in that a one-way valve debugging mechanism is arranged, the debugging of the one-way valve is carried out when an external mechanism is in butt joint, the function requirements of the mechanism are met, the number of external pipelines of the catheter is simplified, the difficulty in butt joint of a user is reduced, and the operation is more convenient.

The invention adopts the following technical scheme: a catheter comprises a main pipe, wherein the main pipe is provided with two channel cavities, the two channel cavities are a catheter cavity and a catheter cavity respectively, one end of the catheter cavity is provided with a catheter port, the main pipe is provided with an inflatable airbag outside the same end of the catheter port, the airbag is communicated with the catheter cavity, the other end of the main pipe is provided with a catheter hole for communicating the catheter cavity with the outside and a catheter hole for communicating the catheter cavity with the outside respectively, a debugging mechanism is arranged at the catheter hole and comprises a shell, a rotary core and a one-way valve, the rotary core is rotatably arranged in the cavity of the shell, the upper side and the lower side of the cavity are communicated outwards to form a flow channel for urine to pass through, the one-way valve is arranged in the rotary core, and the one-way valve is arranged in an initial state to prevent liquid from flowing into the catheter cavity and prevent the liquid from flowing out of the catheter cavity; the rotating core is provided with a debugging module, the shell is also provided with a jack and a debugging hole for an external mechanism to be inserted and connected, the jack is communicated with the flow passage, and the debugging hole is communicated with the debugging module; when the external mechanism is inserted into the jack, the connection is completed, when the debugging piece of the external mechanism is continuously inserted into the debugging hole to drive the debugging module, the rotating core rotates, the one-way valve is debugged to a second state, and the one-way valve supplies liquid to flow out of the urethral catheterization cavity and prevents the liquid from flowing into the urethral catheterization cavity in the second state.

As an improvement, the debugging module includes gear spare and pivot, and this pivot is rotatable to be set up in the casing, and the both ends of pivot are connected respectively and are changeed core and gear spare, and the debugging piece of external mechanism is the rack, and the rack inserts the debugging hole to with gear spare cooperation back drive gear spare rotate.

As an improvement, the rotating shaft is sleeved with a torsion spring, the torsion spring is in a relaxed state when the one-way valve is in an initial state, and when the rotating core rotates to debug the one-way valve to a second state, the torsion spring is twisted to accumulate potential energy.

As an improvement, two retaining walls for limiting the rotation range of the gear piece are arranged in the shell, a convex block which is abutted against the retaining walls is arranged on the circumference of the gear piece, the movable limit position of the convex block is limited by the two retaining walls, and when the convex block is positioned at the two retaining walls, the convex block is respectively corresponding to the one-way valve to be in an initial state and a second state.

As an improvement, the external mechanism is a flushing mechanism, the flushing mechanism comprises a flushing pipe, a liquid collecting pipe, a flushing bottle, a liquid collecting bottle and an integrated pipe, the flushing pipe is connected with the flushing bottle, the liquid collecting pipe is connected with the liquid collecting bottle, and the flushing bottle and the liquid collecting bottle are externally connected with a pressure mechanism for driving liquid to enter or exit; the pipe orifices of the flushing pipe and the liquid collecting pipe extend to the position of the integrated pipe, the pipe orifices are arranged on the integrated pipe at intervals in the front-back direction, and the racks are arranged on the far-end side edges of the integrated pipe; the integrated pipe and the rack are respectively inserted into the jack and the debugging hole to be matched, when the integrated pipe is inserted into the jack until the pipe orifice of the flushing pipe is opposite to the flow channel, the pipe orifice of the liquid collecting pipe is closed by the inner wall of the jack, and the rack does not reach the gear piece in the debugging hole; when the integrated pipe is continuously inserted into the insertion hole until the pipe orifice of the liquid collecting pipe is opposite to the flow channel, the pipe orifice of the flushing pipe is closed by the inner wall of the insertion hole, and the rack reaches the gear piece and is matched with the transmission adjusting one-way valve to be in a second state.

As an improvement, a hard holding block is arranged at the far end of the integrated pipe, the integrated pipe forms an insertion section at the front part of the hard holding block, the pipe orifices of the flushing pipe and the liquid collecting pipe are positioned on the side wall of the insertion section, and the rack is arranged on the hard holding block and is parallel to the insertion section; the outer wall of the insertion section is provided with an elastic annular clamping edge, two annular clamping grooves matched with the elastic annular clamping edge are arranged in the insertion hole, and when the insertion section is inserted into two different depths in the insertion hole and is clamped in the two annular clamping grooves corresponding to the elastic annular clamping edges respectively, the pipe orifices corresponding to the flushing pipe or the liquid collecting pipe respectively are opposite to the flow channel.

As an improvement, the periphery of the far end of the hard holding block is provided with an elastic matching sleeve, and when the insertion section and the rack are inserted into the shell, the elastic matching sleeve is matched with the outer wall of the shell in a sleeved mode.

As an improvement, the external mechanism is a urine collecting mechanism or a collecting mechanism, the urine collecting mechanism and the collecting mechanism respectively comprise a liquid collecting pipe and a liquid collecting bottle, the liquid collecting pipe and the liquid collecting bottle are mutually connected, and the liquid collecting bottle is externally connected with a pressure mechanism for driving liquid to enter the liquid collecting bottle; the rack is arranged on the far end side edge of the liquid collecting pipe; the liquid collecting pipe and the rack are respectively inserted into the insertion hole and the debugging hole to be matched, and when the liquid collecting pipe is inserted into the insertion hole and is opposite to the pipe orifice and the flow channel, the rack reaches the gear piece and is matched with the transmission adjusting one-way valve to be in a second state.

As an improvement, a hard holding block is arranged at the far end of the liquid collecting pipe, the liquid collecting pipe forms an insertion section at the front part of the hard holding block, the pipe orifice of the liquid collecting pipe is positioned on the side wall of the insertion section, and the rack is arranged on the hard holding block and is parallel to the insertion section; the outer wall of the insertion section is provided with an elastic annular clamping edge, the insertion hole is internally provided with an annular clamping groove matched with the elastic annular clamping edge, and when the insertion section is inserted into the insertion hole and the elastic annular clamping edge is clamped in the annular clamping groove, the pipe orifice of the liquid collecting pipe is opposite to the flow channel.

As an improvement, the periphery of the far end of the hard holding block is provided with an elastic matching sleeve, and when the insertion section and the rack are inserted into the shell, the elastic matching sleeve is matched with the outer wall of the shell in a sleeving manner.

The invention has the beneficial effects that: through the arrangement of the debugging mechanism, the catheter does not need to be externally provided with a plurality of pipelines for butt joint of different mechanisms, so that the condition that a user needs to check the description complicatedly under the condition that the functions of the plurality of pipelines are not clear, or the possibility that the wrong pipeline needs to be repeatedly plugged and pulled out or even urine is leaked under the condition of negligence, or the discomfort of a patient is caused by the fact that the catheter needs to be replaced for some functions is avoided; through the setting of check valve and adjust it, the inside unidirectional flow of check valve for control liquid during initial state, keep the closure of catheter not lou urine when not outconnecting other mechanisms, the initial state that can keep the check valve according to the mechanism difference of butt joint or debug the second state, the outside unidirectional flow of check valve for control liquid during the second state, thereby can satisfy the different functions that realize liquid inflow or flow when docking different mechanisms, convenient to use, difficult mistake.

Drawings

Fig. 1 is a schematic sectional view in elevation of the overall construction of a catheter of the invention.

Fig. 2 is a schematic cross-sectional view of the fitting mechanism and the flushing mechanism of the catheter according to the invention.

Fig. 3 is a schematic structural view of the flushing mechanism of the present invention.

Fig. 4 is a schematic cross-sectional view of the fitting mechanism and urine collecting mechanism or collecting mechanism of the urinary catheter of the present invention.

Fig. 5 is a schematic view of the urine collecting mechanism or the collecting mechanism of the present invention.

Fig. 6 is a schematic structural sectional view of a debugging module of the present invention.

Detailed Description

The following detailed description of specific embodiments of the invention refers to the accompanying drawings.

As shown in fig. 1, 2, 3, 4, 5 and 6, a specific embodiment of the catheter of the present invention is shown. The embodiment comprises a main pipe 0, the main pipe 0 is provided with two channel cavities, the two channel cavities are a urine guide cavity 01 and an air guide cavity 02 respectively, one end of the urine guide cavity 01 is provided with a urine guide port 03, the main pipe 0 is provided with an inflatable air bag 04 outside the same end of the urine guide port 03, the air bag 04 is communicated with the air guide cavity 02, the other end of the main pipe 0 is provided with a urine guide hole 1 for communicating the urine guide cavity 01 outwards and an air guide hole 2 for communicating the air guide cavity 02 outwards respectively, a debugging mechanism 3 is arranged at the urine guide hole 1, the debugging mechanism 3 comprises a shell 31, a rotary core 32 and a one-way valve 33, the rotary core 32 is rotatably arranged in a cavity 311 of the shell 31, the upper side and the lower side of the cavity 311 are outwards communicated to form a flow passage 312 for passing urine, the one-way valve 33 is arranged in the rotary core 32, and the one-way valve 33 is arranged in an initial state to prevent liquid from flowing into the urine guide cavity 01 and flowing out of the urine guide cavity 01; the rotary core 32 is provided with a debugging module 34, the shell 31 is also provided with an insertion hole 313 and a debugging hole 314 for an external mechanism to be inserted and connected, the insertion hole 313 is communicated with the flow passage 312, and the debugging hole 314 is communicated with the debugging module 34; when the external mechanism is inserted into the insertion hole 313, the rotary core 32 is rotated to adjust the check valve 33 to a second state when the adjustment member of the external mechanism is continuously inserted into the adjustment hole 314 to drive the adjustment module 34, and the check valve 33 is in a second state in which the liquid flows out of the urinary catheterization cavity 01 and is prevented from flowing into the urinary catheterization cavity 01.

When the invention is used, the main pipe 0 can be made of the existing rubber material, so that the main pipe has good flexibility, the end of the main pipe 0 where the urethral orifice 03 is located is inserted into the bladder through the urethra, the air sac 04 is in a deflation and deflation state during insertion, the insertion is not influenced, the air is introduced into the air sac 02 through the air guide hole 2 after the end enters the bladder, the air sac 04 is expanded, the air sac 04 can be kept clamped in the bladder to position the urethral catheter after the air guide hole 2 is closed, and urine flows through the urethral orifice 03 and flows out to the urethral orifice 1 through the urethral orifice 01. The debugging mechanism 3 accessible grafting structure that sets up in catheterization hole 1 department is connected with being responsible for 0 detachable, connects afterwards, and check valve 33 under the initial condition makes the urine unable outflow, has played the function that similar switch closed, can avoid the urine to spill. The one-way valve 33 can be arranged by adopting the existing structure of a plugging piece and an elastic piece, liquid can push the plugging piece to open a liquid flowing channel from one side and compress the elastic piece, and the elastic piece drives the plugging piece to reset so as to seal the channel; the other side is blocked by the structure so that the liquid can not push the plugging piece. When an external mechanism such as the flushing mechanism 4 is connected from the insertion hole 313, the flushing process of the flushing mechanism 4 can make the liquid pass through the one-way valve 33 in the initial state, pass through the flow passage 312 and the urethral catheterization cavity 01, enter the bladder from the urethral catheterization opening 03 and flush the bladder; when the flushing mechanism 4 performs the liquid discharging and collecting process after flushing, the debugging member can be inserted into the debugging hole 314 to drive the debugging module 34 to rotate the rotating core 32 by 180 degrees, so that the one-way valve 33 is turned by 180 degrees to be in the second state, and the liquid in the bladder can be discharged to the flushing mechanism 4 to complete the collection. When will carry out the discharge of urine or sample collection, can insert ordinary joint, collection urine mechanism 5 or collection mechanism in jack 313 department, it debugs to drive debugging module 34 through debugging plug-in debugging hole 314, makes check valve 33 be in the second state, can carry out the discharge of urine, and ordinary joint supplies this the urination of carrying out of patient, and collection urine mechanism 5 or collection mechanism can collect the urine of discharging. Compared with the urinary catheter in the prior art, a plurality of pipelines do not need to be arranged externally for butt joint of different mechanisms, so that the situation that a user needs to check the description complicatedly under the condition that the functions of the plurality of pipelines are not clear, or the situation that the pipelines are mistakenly plugged and pulled repeatedly even urine leakage is caused under the negligence condition, or the discomfort of a patient caused by the fact that the urinary catheter (part inserted into a human body) needs to be replaced for some functions is avoided; the structure of the invention can meet different functions of liquid inflow or outflow when different mechanisms are butted, is convenient to use, is not easy to make mistakes, is safer and reduces the manufacturing cost of parts.

As a modified specific embodiment, the debugging module 34 includes a gear member 341 and a rotating shaft 342, the rotating shaft 342 is rotatably disposed in the housing 31, two ends of the rotating shaft 342 are respectively connected to the rotating core 32 and the gear member 341, the debugging member of the external mechanism is a rack 40, and the rack 40 is inserted into the debugging hole 314 to be matched with the gear member 341 and then drives the gear member 341 to rotate.

As shown in fig. 2, 4 and 6, the rotation direction of the rotating core 32 is well defined by the arrangement of the rotating shaft 342, and the rotating shaft is well connected to the gear member 341 to the outside, and the debugging hole 314 is well arranged to the outside in the space where the gear member 341 is located, so that the debugging hole 314, the rotating core 32 and the flow channel 312 are not interfered with each other, and the structure is reasonable; depending on the length of the fitting hole 314, the initial state of the check valve 33 may be maintained when the rack 40 is inserted and does not reach the gear member 341, and the check valve 33 may be driven to complete fitting to the second state after the rack 40 is continuously inserted and engaged with the gear member 341.

As a modified embodiment, a torsion spring 343 is sleeved on the rotating shaft 342, the torsion spring 343 is in a relaxed state when the check valve 33 is in the initial state, and the torsion spring 343 is twisted to accumulate potential energy when the rotary core 32 rotates the check valve 33 to the second state.

As shown in fig. 2, 4 and 6, it is preferable that a torsion spring 343 is provided to accumulate potential energy when the gear member 341 is rotated by the rack 40, to release the potential energy when the rack 40 is withdrawn, and to return the auxiliary gear member 341, the rotation shaft 342 and the rotation core 32 to the initial positions after the rack 40 is withdrawn, so that the check valve 33 is in the initial state, and to keep both ends of the check valve 33 aligned with the flow passage 312.

As a modified embodiment, two stop walls 315 are provided in the housing 31 for limiting the rotation range of the gear member 341, the gear member 341 is provided with a projection 3411 on the circumference for abutting against the stop walls 315, the movable limit position of the projection 3411 is defined by the two stop walls 315, and when the projection 3411 is located at the two stop walls 315, the initial state and the second state of the check valve 33 are respectively corresponding.

As shown in fig. 6, after the retaining wall 315 and the protrusion 3411 are preferably disposed, the rotation angle of the gear member 341 is limited, and the gear member 341 can rotate back and forth until the protrusion 3411 is retained by the retaining wall 315, and the one-way valve 33 can be accurately and correspondingly in the initial state and the second state, so that two ends of the one-way valve 33 are aligned with the flow channel 312, the structural function is well realized, the liquid flows smoothly, and the function of position limitation is better realized by matching with the torsion spring 343.

As an improved specific embodiment, the external mechanism is a flushing mechanism 4, the flushing mechanism 4 comprises a flushing pipe 41, a liquid collecting pipe 42, a flushing bottle 43, a liquid collecting bottle 44 and an integrated pipe 45, the flushing pipe 41 and the flushing bottle 43 are connected with each other, the liquid collecting pipe 42 and the liquid collecting bottle 44 are connected with each other, and the flushing bottle 43 and the liquid collecting bottle 44 are externally connected with a pressure mechanism 46 for driving liquid to enter or exit; the orifices of the flushing pipe 41 and the liquid collecting pipe 42 extend to the position of the integrated pipe 45, the orifices are arranged on the integrated pipe 45 at intervals in the front-back direction, and the rack 40 is arranged on the far-end side edge of the integrated pipe 45; the integrated pipe 45 and the rack 40 are respectively inserted into the insertion hole 313 and the debugging hole 314 to be matched, when the integrated pipe 45 is inserted into the insertion hole 313 until the nozzle of the flushing pipe 41 is opposite to the flow channel 312, the nozzle of the liquid collecting pipe 42 is closed by the inner wall of the insertion hole 313, and the rack 40 does not reach the gear piece 341 in the debugging hole 314; when the pipe 45 is inserted into the insertion hole 313 until the nozzle of the header pipe 42 is opposite to the flow passage 312, the nozzle of the flushing pipe 41 is closed by the inner wall of the insertion hole 313, and the rack 40 reaches the gear member 341 and cooperates with the transmission adjusting check valve 33 to the second state.

As shown in fig. 2 and 3, when in use, the integrated tube 45 and the rack 40 of the flushing mechanism 4 are respectively and correspondingly inserted into the insertion hole 313 and the debugging hole 314, the integrated tube 45 is inserted into the shallow position of the insertion hole 313 during the flushing process, the nozzle of the flushing tube 41 is opposite to the flow channel 312, the nozzle of the liquid collecting tube 42 is closed by the inner wall of the insertion hole 313, the rack 40 does not reach the gear 341 in the debugging hole 314, and the check valve 33 can flush the bladder in the initial state; the pressure mechanism 46 can be implemented by an air pump or a balloon, for example, to inflate and pressurize the washing bottle 43, so as to deliver the washing liquid pre-stored in the washing bottle 43 into the bladder for washing through the washing tube 41, the flow passage 312 and the urinary catheterization cavity 01. When the liquid discharging and collecting process is to be carried out after the washing is finished, the integrated tube 45 is continuously inserted into the deeper position of the insertion hole 313, the nozzle of the liquid collecting tube 42 is opposite to the flow channel 312, the nozzle of the washing tube 41 is sealed by the inner wall of the insertion hole 313, the rack 40 reaches the gear part 341 and is matched with the transmission adjusting one-way valve 33 to be in the second state, at the moment, the liquid can be discharged to the liquid collecting bottle 44 from the bladder outwards along the urethral catheterization cavity 01, the flow channel 312 and the liquid collecting tube 42 for collection, meanwhile, the negative pressure can be formed by air suction of the liquid collecting bottle 44 through the pressure mechanism 46, and the liquid is extracted in an auxiliary mode to accelerate the collection progress. The insertion holes 313 and the flow channels 312 are arranged adjacently as shown in the figure, so that the pipe orifices of the flushing pipes 41 or the liquid collecting pipes 42 are debugged, switched, aligned and closed; and the matching with the jack 313 is realized by virtue of the integrated pipe 45, so that the operation and the use are convenient, and no error is caused.

As a modified embodiment, the distal end of the integrated pipe 45 is provided with a hard holding block 451, the integrated pipe 45 forms an insertion section 452 at the front of the hard holding block 451, the mouths of the flushing pipe 41 and the liquid collecting pipe 42 are located on the side wall of the insertion section 452, and the rack 40 is arranged on the hard holding block 451 and is kept parallel to the insertion section 452; an elastic annular clamping ridge 453 is arranged on the outer wall of the insertion section 452, two annular clamping grooves 3131 matched with the elastic annular clamping ridge 453 are arranged in the insertion hole 313, and when the insertion section 452 is inserted into two positions of the insertion hole 313 at different depths and clamped in the two annular clamping grooves 3131 corresponding to the elastic annular clamping ridge 453, the openings of the nozzles corresponding to the flushing pipe 41 or the liquid collecting pipe 42 are opposite to the flow passage 312.

As shown in fig. 2 and 3, in use, the hard holding block 451 provides the user with structural strength for holding and applying force, so that the insertion section 452 of the front integrated tube 45 and the rack 40 can be easily and smoothly inserted into the insertion hole 313 and the adjustment hole 314 respectively; the elastic ring clamping rib 453 arranged on the insertion section 452 is matched with two ring clamping grooves 3131 with different depths in the insertion hole 313 for limiting and indicating whether the insertion section 452 is in place or not when being inserted, and the elastic ring clamping rib 453 can be clamped into the ring clamping grooves 3131 at different positions, so that the nozzles of the flushing pipe 41 and the liquid collecting pipe 42 are aligned with the flow passage 312 more accurately and stably, and the matching between the insertion section 452 and the insertion hole 313 is more stable.

As a modified embodiment, the rigid holding block 451 is provided with an elastic matching sleeve 454 at the periphery of the distal end, and when the insertion section 452 and the rack 40 are inserted into the housing 31, the elastic matching sleeve 454 is in a sleeved fit with the outer wall of the housing 31.

As shown in fig. 2 and 3, the elastic matching sleeve 454 allows the hard holding block 451 and the housing 31 to be inserted and connected to each other beyond the limit of the integrated pipe 45 and the insertion hole 313, and an external sleeve is added to provide a matching limit, so that the insertion and connection between the hard holding block 451 and the housing are more stable and firm, and the loosening is better avoided.

As an improved specific implementation manner, the external mechanism is a urine collecting mechanism 5 or a collecting mechanism, the urine collecting mechanism 5 and the collecting mechanism both comprise a liquid collecting pipe 42 and a liquid collecting bottle 44, the liquid collecting pipe 42 and the liquid collecting bottle 44 are connected with each other, and the liquid collecting bottle 44 is externally connected with a pressure mechanism 46 for driving liquid to enter the liquid collecting bottle 44; the rack 40 is arranged on the far end side of the liquid collecting pipe 42; the header 42 and the rack 40 are inserted into the insertion hole 313 and the adjustment hole 314 respectively to be matched, and when the header 42 is inserted into the insertion hole 313 until the nozzle is opposite to the flow passage 312, the rack 40 reaches the gear member 341 and is matched with the transmission adjustment check valve 33 to be in the second state.

As shown in fig. 4 and 5, when the urine collecting mechanism 5 or the collecting mechanism is used, the liquid collecting tube 42 and the rack 40 are respectively and correspondingly inserted into the insertion hole 313 and the adjusting hole 314, the nozzle of the liquid collecting tube 42 is opposite to the flow channel 312, the rack 40 reaches the gear 341 and is matched with the transmission adjusting one-way valve 33 to be in the second state, at this time, urine can be discharged from the bladder to the outside along the urine guiding cavity 01, the flow channel 312 and the liquid collecting tube 42 to the liquid collecting bottle 44 for collection, and meanwhile, the pressure mechanism 46 can be used for sucking air from the liquid collecting bottle 44 to form negative pressure so as to assist in sucking the urine and quickening the collection progress. The structure is convenient to operate and use, and errors can be avoided.

As a modified embodiment, the far end of the liquid collecting pipe 42 is provided with a hard holding block 451, the liquid collecting pipe 42 is provided with an inserting section 452 at the front part of the hard holding block 451, the nozzle of the liquid collecting pipe 42 is positioned on the side wall of the inserting section 452, and the rack 40 is arranged on the hard holding block 451 and is kept parallel to the inserting section 452; an elastic annular clamping ridge 453 is arranged on the outer wall of the insertion section 452, an annular clamping groove 3131 matched with the elastic annular clamping ridge 453 is arranged in the insertion hole 313, and when the insertion section 452 is inserted into the insertion hole 313 and the elastic annular clamping ridge 453 is clamped in the annular clamping groove 3131, the nozzle of the liquid collecting pipe 42 is opposite to the flow channel 312.

As shown in fig. 4 and 5, in use, the hard holding block 451 provides the user with structural strength for holding and applying force, so that the insertion section 452 of the front header pipe 42 and the rack 40 can be easily and smoothly inserted into the insertion hole 313 and the adjustment hole 314 respectively; the elastic ring clamping rib 453 of the insertion section 452 is matched with the two ring clamping grooves 3131 with different depths in the insertion hole 313 for limiting and indicating whether the insertion section 452 is in place during insertion, so that the nozzle of the liquid collecting pipe 42 is aligned with the flow passage 312 more accurately and stably, and the insertion section 452 is matched with the insertion hole 313 more stably.

As a modified embodiment, the hard holding block 451 is provided at the distal end periphery thereof with an elastic fitting sleeve 454, and when the insertion section 452 and the rack 40 are inserted into the housing 31, the elastic fitting sleeve 454 is fitted with the outer wall of the housing 31.

As shown in fig. 4 and 5, the elastic matching sleeve 454 allows the hard holding block 451 and the housing 31 to be inserted and connected to each other beyond the limit of the integrated pipe 45 and the insertion hole 313, and an external sleeve is added to provide a matching limit, so that the insertion and connection between the hard holding block 451 and the housing are more stable and firm, and the loosening is better avoided.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to those skilled in the art without departing from the principles of the present invention should also be considered as within the scope of the present invention.

Claims

1. The utility model provides a catheter, including being responsible for (0), this be responsible for (0) and have two passageway chambeies, two passageway chambeies are catheterization chamber (01) and air guide chamber (02) respectively, the one end of this catheterization chamber (01) has catheterization mouth (03), be responsible for (0) and be provided with inflatable expanded gasbag (04) in the same one end outside of catheterization mouth (03), this gasbag (04) and air guide chamber (02) intercommunication, be responsible for (0) and set up respectively at the other end and supply catheterization hole (1) of catheterization chamber (01) external intercommunication, supply air guide chamber (02) external air guide hole (2) of intercommunication, its characterized in that: the urethral catheterization hole (1) is provided with a debugging mechanism (3), the debugging mechanism (3) comprises a shell (31), a rotating core (32) and a one-way valve (33), the rotating core (32) is rotatably arranged in a cavity (311) of the shell (31), the upper side and the lower side of the cavity (311) are outwards communicated to form a flow passage (312) for urine to pass through, the one-way valve (33) is arranged in the rotating core (32), and the one-way valve (33) is arranged in an initial state to enable liquid to flow into the urethral catheterization cavity (01) and prevent the liquid from flowing out of the urethral cavity (01); the rotating core (32) is provided with a debugging module (34), the shell (31) is also provided with an insertion hole (313) and a debugging hole (314) for an external mechanism to be inserted and connected, the insertion hole (313) is communicated with the flow channel (312), and the debugging hole (314) is communicated with the debugging module (34); when the external mechanism is inserted into the insertion hole (313), the connection is completed, when the debugging piece of the external mechanism is continuously inserted into the debugging hole (314) to drive the debugging module (34), the rotating core (32) rotates, the debugging one-way valve (33) is in a second state, and the one-way valve (33) in the second state allows liquid to flow out of the urethral catheterization cavity (01) and prevents the liquid from flowing into the urethral cavity (01);

the debugging module (34) comprises a gear piece (341) and a rotating shaft (342), the rotating shaft (342) is rotatably arranged in the shell (31), the two ends of the rotating shaft (342) are respectively connected with a rotating core (32) and the gear piece (341), a debugging piece of an external mechanism is a rack (40), and the rack (40) is inserted into a debugging hole (314) to be matched with the gear piece (341) and then drives the gear piece (341) to rotate.

2. A catheter according to claim 1 wherein: the rotating shaft (342) is sleeved with a torsion spring (343), the torsion spring (343) is in a relaxed state in the initial state of the one-way valve (33), and when the rotating core (32) rotates to adjust the one-way valve (33) to the second state, the torsion spring (343) is twisted to accumulate potential energy.

3. A catheter according to claim 2, wherein: two retaining walls (315) for limiting the rotation range of the gear piece (341) are arranged in the shell (31), a lug (3411) which is abutted against the retaining walls (315) is arranged on the circumference of the gear piece (341), the movable limit position of the lug (3411) is limited by the two retaining walls (315), and when the lug (3411) is positioned at the two retaining walls (315), the corresponding one-way valve (33) is in an initial state and a second state respectively.

4. A catheter according to claim 1, 2 or 3 wherein: the external mechanism is a flushing mechanism (4), the flushing mechanism (4) comprises a flushing pipe (41), a liquid collecting pipe (42), a flushing bottle (43), a liquid collecting bottle (44) and an integrated pipe (45), the flushing pipe (41) and the flushing bottle (43) are connected with each other, the liquid collecting pipe (42) and the liquid collecting bottle (44) are connected with each other, and the flushing bottle (43) and the liquid collecting bottle (44) are externally connected with a pressure mechanism (46) for driving liquid to enter or exit; the orifices of the flushing pipe (41) and the liquid collecting pipe (42) extend to the position of the integrated pipe (45), the orifices are arranged on the integrated pipe (45) at intervals in the front-back direction, and the rack (40) is arranged on the side edge of the far end of the integrated pipe (45); the integrated pipe (45) and the rack (40) are respectively inserted into the insertion hole (313) and the debugging hole (314) to be matched, when the integrated pipe (45) is inserted into the insertion hole (313) until the nozzle of the flushing pipe (41) is opposite to the flow channel (312), the nozzle of the liquid collecting pipe (42) is closed by the inner wall of the insertion hole (313), and the rack (40) does not reach the gear piece (341) in the debugging hole (314); when the integrated pipe (45) is continuously inserted into the insertion hole (313) until the nozzle of the liquid collecting pipe (42) is opposite to the flow channel (312), the nozzle of the flushing pipe (41) is closed by the inner wall of the insertion hole (313), and the rack (40) reaches the gear piece (341) and is matched with the transmission adjusting one-way valve (33) to be in the second state.

5. A catheter according to claim 4, wherein: a hard holding block (451) is arranged at the far end of the integrated pipe (45), an insertion section (452) is formed at the front part of the hard holding block (451) by the integrated pipe (45), the mouths of the flushing pipe (41) and the liquid collecting pipe (42) are positioned on the side wall of the insertion section (452), and the rack (40) is arranged on the hard holding block (451) and keeps parallel with the insertion section (452); the outer wall of the insertion section (452) is provided with an elastic annular clamping rib (453), two annular clamping grooves (3131) matched with the elastic annular clamping rib (453) are arranged in the insertion hole (313), and when the insertion section (452) is inserted into two positions of the insertion hole (313) at different depths and is clamped in the two annular clamping grooves (3131) corresponding to the elastic annular clamping rib (453), the pipe orifices corresponding to the flushing pipe (41) or the liquid collecting pipe (42) are opposite to the flow channel (312).

6. A catheter according to claim 5, wherein: the periphery of the far end of the hard holding block (451) is provided with an elastic matching sleeve (454), and when the insertion section (452) and the rack (40) are inserted into the shell (31), the elastic matching sleeve (454) is matched with the outer wall of the shell (31) in a sleeved mode.

7. A catheter according to claim 1, 2 or 3 wherein: the external mechanism is a urine collecting mechanism (5) or a collecting mechanism, the urine collecting mechanism (5) and the collecting mechanism respectively comprise a liquid collecting pipe (42) and a liquid collecting bottle (44), the liquid collecting pipe (42) and the liquid collecting bottle (44) are mutually connected, and the liquid collecting bottle (44) is externally connected with a pressure mechanism (46) for driving liquid to enter the liquid collecting bottle (44); the rack (40) is arranged on the far end side edge of the liquid collecting pipe (42); the liquid collecting pipe (42) and the rack (40) are respectively inserted into the insertion hole (313) and the adjusting hole (314) to be matched, when the liquid collecting pipe (42) is inserted into the insertion hole (313) until the pipe orifice is opposite to the flow channel (312), the rack (40) reaches the gear piece (341) and is matched with the transmission adjusting one-way valve (33) to be in a second state.

8. A catheter according to claim 7, wherein: a hard holding block (451) is arranged at the far end of the liquid collecting pipe (42), an insertion section (452) is formed in the front of the hard holding block (451) by the liquid collecting pipe (42), the nozzle of the liquid collecting pipe (42) is positioned on the side wall of the insertion section (452), and the rack (40) is arranged on the hard holding block (451) and keeps parallel to the insertion section (452); an elastic annular clamping ridge (453) is arranged on the outer wall of the insertion section (452), an annular clamping groove (3131) matched with the elastic annular clamping ridge (453) is arranged in the insertion hole (313), and when the insertion section (452) is inserted into the insertion hole (313) and the elastic annular clamping ridge (453) is clamped in the annular clamping groove (3131), the nozzle of the liquid collecting pipe (42) is opposite to the flow channel (312).

9. A catheter according to claim 8 wherein: the periphery of the far end of the hard holding block (451) is provided with an elastic matching sleeve (454), and when the insertion section (452) and the rack (40) are inserted into the shell (31), the elastic matching sleeve (454) is matched with the outer wall of the shell (31) in a sleeved mode.