CN211245116U

CN211245116U - Multifunctional catheter

Info

Publication number: CN211245116U
Application number: CN201921062572.7U
Authority: CN
Inventors: 朱振荣; 朱佳; 孙朴
Original assignee: Suzhou Weiermeng Medical Instrument Co ltd
Current assignee: Suzhou Weiermeng Medical Instrument Co ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-08-14
Anticipated expiration: 2029-07-09

Abstract

A multifunctional catheter belongs to the technical field of medical instruments. The urine collection bag comprises a tube body, wherein a liquid through cavity and a ventilation cavity are formed in the length direction of the tube body and are isolated from each other, one end, used for being matched and connected with the urine collection bag, of the tube body is a liquid outlet end of the tube body, one end, used for being inserted into a patient body, of the tube body is a liquid inlet end of the tube body, a liquid inlet hole is formed in the end face of the liquid inlet end of the tube body, a medicine injection hole is formed in the side portion of the liquid inlet end of; one end of the urine collecting bag matching sleeve and the liquid outlet end of the tube body form an integral structure, and the other end forms a urine collecting bag matching port; one end of the vent pipe and the urine collecting bag matching sleeve form an integral structure, and the other end forms an air bag inflation and deflation valve matching joint; the air bag inflation and deflation valve is matched and connected with the air bag inflation and deflation valve matching joint; the method is characterized in that: the device also comprises an injector cleaning solution injection transition joint which is matched with the urine collection bag matching port in a plugging and pulling manner. The sanitation is guaranteed, and the waste of cleaning solution is prevented; reasonable structure, convenient operation and the advantage of operational flexibility.

Description

Multifunctional catheter

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to multifunctional catheter.

Background

Catheters are known to be made primarily of natural rubber, silicone rubber or polyvinyl chloride (PVC) materials, most of which use white, transparent silicone rubber for the catheter.

As is known in the art, the aforementioned urinary catheter is a medical device that is widely used by postoperative patients, anesthetics, and dysuria patients to perform drainage by inserting the urinary bladder through the urethral orifice under normal nursing intervention and under sterile conditions. Taking a patient after a prostate operation as an example, the normal urination function is difficult to recover immediately after the operation, and the insertion of a catheter and the retention time are required to be determined by the condition of the patient.

The published chinese patent literature contains no technical information on catheters, such as CN202161458U (precisely positioned balloon catheter), CN104800957A (a catheter), CN207605217U (a rupture-proof dual-lumen balloon catheter), CN107497034A (a coated threaded catheter), CN205885943U (a J-type catheter with reinforcing ribs), CN201290794Y (an open silicone catheter), CN205411900U (portable dual-lumen balloon catheter), CN106215309A (a catheter with viewing balloon) and CN109498969A (a drug delivery catheter), to name a few.

The above patents, which are not limited to the illustrations, each have unique technical effects, but have the following general disadvantages: because a syringe is usually needed to inject a cleaning solution into the urine collection bag fitting port of the urinary catheter before the catheterization of a catheterization patient, so as to clean the bladder as necessary, but because the injection head of the syringe, i.e. the needle tube fitting head, is not matched with the urinary catheter fitting port of the urinary catheter, during the operation of the syringe by medical personnel, on one hand, the situation of leakage of the cleaning solution is generated, so that the loss of the cleaning solution is caused, on the other hand, the limbs of the medical personnel, such as fingers, are stained by the cleaning solution, and on the other hand, the cleaning solution may flow to the patient or even to clothes along with the urinary catheter. In addition, although the above patents mostly mention the air bag inflation and deflation valve, the specific structure of the air bag inflation and deflation valve is not given, and in the actual use process, if the structure of the air bag inflation and deflation valve is not reasonable, for example, the operation is inconvenient, the sealing performance is poor, the air bag inflation and deflation valve is easily blocked by foreign matters, and the like, the use effect is affected. In view of the foregoing, there is a need for improvement, and the technical solutions described below are made in this context.

Disclosure of Invention

The utility model discloses a first task lies in providing one kind and helps joining in marriage the mouth with collection urine bag and connect temporarily to join in marriage and connect and can satisfy medical staff and utilize the syringe to pour into the flush fluid into patient's bladder and can not appear the seepage situation and can ensure the health and avoid the extravagant multi-functional catheter of flush fluid at the in-process of pouring into the flush fluid into.

Another task of the utility model is to provide a be favorable to embodying the multi-functional catheter of the rationality, the convenience of operation and the flexibility of gasbag inflation and deflation valve structure.

For embodying the utility model's task of priority, the utility model provides a technical scheme is: a multifunctional catheter comprises a catheter body, a liquid through cavity and a ventilation cavity are formed in the length direction of the catheter body, the ventilation cavity is isolated from the liquid through cavity, one end of the tube body, which is used for being matched and connected with the urine collection bag in the use state, is a tube body liquid outlet end, one end of the tube body, which is used for being inserted into the body of a patient in the use state, is a tube body liquid inlet end, the end surface of the liquid inlet end of the pipe body is provided with a liquid inlet hole, the side part of the liquid inlet end of the pipe body is provided with a medicine injection hole, the liquid inlet hole and the medicine injection hole are communicated with the liquid through cavity, an air bag is enveloped on the outer wall of the liquid inlet end of the pipe body and is positioned above the medicine injection hole in the use state, the air bag and the liquid inlet end of the pipe body form an integrated structure, a space between the inner wall of the air bag and the outer wall of the liquid inlet end of the pipe body forms an air bag cavity, and the ventilation cavity is communicated with the air bag cavity; the end of the urine collecting bag adapting sleeve facing the tube body and the liquid outlet end of the tube body form an integral structure, and the end of the urine collecting bag adapting sleeve far away from the liquid outlet end of the tube body forms a urine collecting bag adapting port; the end of the vent pipe facing the urine collection bag adapting sleeve is integrated with the urine collection bag adapting sleeve into a whole, the vent pipe hole of the vent pipe is communicated with the vent cavity, and the end of the vent pipe far away from the urine collection bag adapting sleeve is provided with a gas bag charging and discharging valve matching joint; the air bag inflation and deflation valve is connected with the air bag inflation and deflation valve fitting; is characterized by also comprising a syringe cleaning solution injection transition joint which is matched with the urine collection bag matching port in a plugging and pulling way.

The utility model discloses a concrete embodiment, syringe washing liquid injection transition joint include a transition joint body and a collection urine bag and join in marriage a mouthful seal cover, when injecting the washing liquid by the syringe, the lower extreme of transition joint body inserts collection urine bag and joins in marriage the interface, the upper end of transition joint body constitutes the syringe needle tube that has a syringe needle tube that supplies the syringe to join in marriage the joint, the syringe needle tube jack that this syringe needle tube joins in marriage the joint communicates with each other with the transition joint body central hole of transition joint body, collection urine bag joins in marriage the middle part that mouthful seal cover an organic whole constitutes in the outer wall of transition joint body, and the space between the inner wall that should collect urine bag and join in marriage the mouth seal cover and constitute to collect urine bag and join in marriage the sleeve pipe and join in marriage the clearance, insert when the lower extreme of transition joint body collect urine bag joins in marriage the interface, collection urine bag joins in marriage the sheathed tube and join in marriage the upper edge of joining in marriage the sleeve pipe and join in the sealed joining The sleeves are in sealing relation.

In another specific embodiment of the present invention, a plug connecting piece is extended from a position on the transition joint body corresponding to the upper side portion of the urine collection bag fitting port sealing sleeve, and a syringe jack plug is formed at a position on the plug connecting piece corresponding to the syringe jack and is matched with the syringe jack.

In another specific embodiment of the present invention, the width of the insertion gap of the urine collection bag adapter sleeve is adapted to the wall thickness of the urine collection bag adapter sleeve.

In another specific embodiment of the present invention, the tube body, the urine collection bag adapter sleeve, the vent tube, the transition joint body of the syringe cleaning solution injection transition joint, and the urine collection bag adapter seal sleeve are made of transparent silicone rubber.

In still another specific embodiment of the present invention, a blue developing line is laid in the tube body wall of the tube body and along the length direction of the tube body, and the blue developing line extends to the medicine injection hole toward one end of the liquid inlet end of the tube body.

For embodying another task of the utility model, the utility model provides a technical scheme is: the air bag inflation and deflation valve comprises a valve body, a valve rod, a return spring, a valve body fastening sleeve and a valve body cavity sealing protection device, wherein the valve body is provided with a valve body inflation and deflation cavity, a valve cavity spacer is formed in the middle of the height direction of the valve body inflation and deflation cavity, the valve cavity spacer divides the valve body inflation and deflation cavity into a valve body inflation and deflation upper cavity above the valve cavity spacer and a valve body inflation and deflation lower cavity below the valve cavity spacer, a valve cavity spacer air hole for penetrating the valve body inflation and deflation upper cavity and the valve body inflation and deflation lower cavity is formed in the central position of the valve cavity spacer, the valve rod is vertically and floatingly arranged in the valve body inflation and deflation cavity, the upper end of the valve rod is positioned in the valve body inflation and deflation upper cavity and forms a valve rod cap, a sealing ring seat is formed in the middle of the valve rod and in a position corresponding to the lower part of the valve cavity spacer, the sealing, the sealing ring is sleeved on the valve rod and corresponds to the lower part of an air hole of a partition of the valve cavity, the return spring is sleeved on the valve rod at a position corresponding to the lower part of the sealing ring seat, the upper end of the return spring is supported on the sealing ring seat, the lower end of the return spring is supported on the bottom wall of a valve body inflation and deflation cavity of the valve body inflation and deflation cavity, the bottom wall of the valve body inflation and deflation cavity is provided with a valve body inflation and deflation cavity inlet and outlet air hole, the valve body inflation and deflation cavity inlet and outlet air hole is communicated with the air bag inflation and deflation valve distribution joint, the valve body fastening sleeve is sleeved on the air bag inflation and deflation valve distribution joint, the lower end of the valve body is fixed with the valve body fastening sleeve, the valve body cavity sealing and protecting device is sleeved on the upper end of the valve body and is matched or separated from the cavity opening of the air bag inflation and deflation valve distribution joint, wherein a valve body inserting flange extends from the central position, the air inlet and outlet holes of the valve body air inflation and deflation cavity are communicated with the central hole of the valve body inserting flange.

In a more specific embodiment of the present invention, the upper portion of the valve body adapter sleeve is formed with a valve body adapter sleeve flange, and the outer wall of the middle portion of the valve body is formed with a valve body flange which is matched with the valve body adapter sleeve flange.

In yet another specific embodiment of the present invention, the valve body cavity sealing protection device includes a ferrule, a ferrule connecting piece and a valve rod cap pressing flange, the ferrule is sleeved on the upper end of the valve body, the ferrule connecting piece directly extends to form on the ferrule, the valve rod cap pressing flange is corresponding to the position of the valve body inflation/deflation upper cavity is formed to be away from the ferrule connecting piece the one end of the ferrule is matched with the cavity opening of the valve body inflation/deflation upper cavity, wherein the ferrule, the ferrule connecting piece and the valve rod cap pressing flange are made of transparent silicone rubber.

In a more specific embodiment of the present invention, a chemical feeding tube extends from the urine collecting bag adapter sleeve, the chemical feeding tube is communicated with the liquid through cavity, and the chemical feeding tube is connected to a chemical feeding transition connector of the same structure as the injection transition connector of the injector cleaning liquid.

The utility model provides a technical scheme is owing to join in marriage on the adapter sleeve pipe at collection urine bag and has joined in marriage the syringe washing liquid injection transition joint that both can join in marriage reliable sealed cooperation of adapter sleeve pipe and can join in marriage with the syringe needle tube and join in marriage the convenient adapter with syringe needle tube, therefore when will pour into the flush fluid into patient's bladder, as long as join in marriage the lower extreme of syringe washing liquid injection transition joint and join in marriage the adapter with collection urine bag and join in marriage the mouth and join in marriage, and join in marriage syringe needle tube and syringe washing liquid injection transition joint's upper end and join in marriage, and can not appear the seepage situation through the in-process that the syringe pours into. Furthermore, the utility model provides an gasbag fills gassing valve has rational in infrastructure, simple operation and has the strong point of operation flexibility.

Drawings

Fig. 1 is a structural diagram of a first embodiment of the present invention.

Fig. 2 is a detailed structural view of the valve body, the valve stem, and the return spring shown in fig. 1.

Fig. 3 is a structural view of a second embodiment of the present invention.

Detailed Description

In order to make the technical essence and advantages of the present invention more clear, the applicant below describes in detail the embodiments, but the description of the embodiments is not a limitation of the present invention, and any equivalent changes made according to the inventive concept, which are only formal and not essential, should be considered as the technical scope of the present invention.

In the following description, unless otherwise specified, all the concepts related to up, down, left, right, front and rear are basically based on the illustrated position states, and thus, should not be construed as particularly limiting the technical solutions provided by the present invention.

Example 1:

referring to fig. 1, there is shown a tube 1, wherein a fluid cavity 11 and a vent cavity 12 (also called "vent hole" hereinafter) are formed in the length direction of the tube 1, the vent cavity 12 is isolated from the fluid cavity 11, one end of the tube 1 for being coupled with a urine collection bag in use is a tube outlet 13, one end of the tube 1 for being inserted into a patient in use is a tube inlet 14, a fluid inlet hole 141 is opened on the end surface of the tube inlet 14, a drug injection hole 142 is opened on the side of the tube inlet 14, the drug injection hole 142 has the function of discharging a cleaning fluid, the fluid inlet hole 141 and the drug injection hole 142 are both communicated with the fluid cavity 11, an air bag 143 is enveloped on the outer wall of the tube inlet 14 and above the drug injection hole 142 in use, the air bag 143 and the tube inlet 14 of the tube 1 form an integral structure, and the inner wall of the air bag 143 and the outer wall of the tube inlet 14 are connected with an air bag 143 The space between them is formed as a balloon cavity 1431, and the aforementioned vent cavity 12 is communicated with the balloon cavity 1431; a urine collecting bag adapting sleeve 2 is shown, one end of the urine collecting bag adapting sleeve 2 facing the tube body 1 and the tube body liquid outlet end 13 of the tube body 1 form an integral structure, one end of the urine collecting bag adapting sleeve 2 far away from the tube body liquid outlet end 13 forms a urine collecting bag adapting port 21, and in a urine guiding state, the urine collecting bag adapting port 21 is adapted to a urine collecting bag liquid inlet connecting nozzle on a urine collecting bag; a breather pipe 3 is shown, one end of the breather pipe 3 facing to the urine collection bag adapting sleeve 2 is integrated with the urine collection bag adapting sleeve 2, a breather pipe hole 31 of the breather pipe 3 is communicated with the breather cavity 12, and a gasbag charging and discharging valve adapting joint 32 is formed at one end of the breather pipe 3 far away from the urine collection bag adapting sleeve 2; an air bag inflation and deflation valve 4 is shown, the air bag inflation and deflation valve 4 being coupled to the air bag inflation and deflation valve fitting 32.

As the technical scheme provided by the utility model: the structure system of the multifunctional catheter also comprises a syringe cleaning solution injection transition joint 5, and the syringe cleaning solution injection transition joint 5 is in plug-pull fit with the urine collection bag matching port 21.

The above-mentioned syringe cleaning solution injection transition joint 5 includes a transition joint body 51 and a urine collection bag matching port sealing sleeve 52, when the cleaning solution is injected by the syringe, the lower end of the transition joint body 51 is inserted into the urine collection bag matching port 21, the upper end of the transition joint body 51 is formed with a syringe needle tube matching joint 511 for matching the syringe needle tube of the syringe, the syringe needle tube insertion hole 5111 of the syringe needle tube matching joint 511 is communicated with the transition joint body central hole 512 of the transition joint body 51, the urine collection bag matching port sealing sleeve 52 is integrally formed in the middle of the outer wall of the transition joint body 51, and the space between the inner wall of the urine collection bag matching port sealing sleeve 52 and the outer wall of the transition joint body 51 is formed as a urine collection bag matching sleeve probing gap 521, when the lower end of the transition joint body 51 is inserted into the urine collection bag matching port 21, the upper edge of the urine collection bag matching sleeve 2 probes into the urine collection bag matching gap 521 and matches with the urine collection bag Port seal cartridge 52 forms a sealing relationship.

A plug connecting piece 514 extends from the transition joint body 51 at a position corresponding to the upper side of the urine collection bag fitting port sealing sleeve 52, and a syringe insertion hole plug 5141 is formed on the plug connecting piece 514 at a position corresponding to the syringe insertion hole 5111, and the syringe insertion hole plug 5141 is fitted to the syringe insertion hole 5111.

In the non-use state, the whole injector cleaning solution injection transition joint 5 is attached to the urine collection bag adapter sleeve 2, and specifically comprises the following steps: the fixing collar 5131 is sleeved outside the urine collection bag coupling sleeve 2, the transition joint body 51 is in a state of leaving the urine collection bag coupling port 21 under the protection of the transition strip 513, and the needle tube jack plug 5141 is in a state of being inserted into the syringe needle tube jack 5111. When the bladder of a patient needs to be cleaned, the lower end of the transition joint body 51 is inserted into the urine collection bag matching port 21, the upper part of the urine collection bag matching port 21 extends into the urine collection bag matching sleeve extending gap 521 to form good sealing, the needle tube insertion hole plug 5141 is opened, a medical worker aligns the syringe needle tube of a syringe (commonly called a "needle tube") filled with cleaning fluid with the syringe needle tube insertion hole 5111 of the syringe, namely the syringe needle tube insertion hole 5111 is inserted and matched, the syringe piston is pushed to push out the cleaning fluid in the syringe, the cleaning fluid sequentially passes through the urine collection bag matching sleeve 2 and the liquid through cavity 11 of the tube body 1 until the cleaning fluid is led out from the liquid inlet hole 141 and the drug injection hole 142 into the bladder, and the liquid inlet hole 141 is changed into a cleaning fluid outlet hole. After cleaning, the transition joint body 51 is pulled away, i.e. the transition joint body is withdrawn from the urine collection bag matching port 21, and the urine collection bag matching port 21 is inserted into the urine collection bag liquid inlet connector on the urine collection bag.

Preferably, the width of the urine collection bag adapter insertion gap 521 is adapted to the wall thickness of the urine collection bag adapter sleeve 2 to achieve the desired sealing effect.

In this embodiment, the tube body 1, the urine collection bag adapter sleeve 2, the vent tube 3, the transition joint body 51 of the syringe cleaning solution injection transition joint 5 and the urine collection bag adapter sleeve 52 are made of transparent silicone rubber, and a blue development line 15 is laid in the tube wall of the tube body 1 along the length direction of the tube body 1, wherein the blue development line 15 extends to the medicine injection hole 142 toward one end of the tube body inlet end 14. Since the function of the blue development line 15 belongs to the prior art, for example, refer to CN201290794Y mentioned in the above background field by the applicant, and thus, the description thereof is omitted.

Referring to fig. 1 and 2, the airbag inflation/deflation valve 4 includes a valve body 41, a valve stem 42, a return spring 43, a valve body fastening sleeve 44 and a valve body cavity seal protection device 45, the valve body 41 has a valve body inflation/deflation chamber 411, a valve cavity spacer 4113 is formed in the middle of the valve body inflation/deflation chamber 411 in the height direction, the valve cavity spacer 4113 divides the valve body inflation/deflation chamber 411 into a valve body inflation/deflation upper chamber 4111 above the valve cavity spacer 4113 and a valve body inflation/deflation lower chamber 4112 below the valve cavity spacer 4113, a valve cavity spacer 41131 for penetrating the valve body inflation/deflation upper chamber 4111 and the valve body inflation/deflation lower chamber 4112 is formed in the center of the valve cavity spacer 4113, the valve stem 42 is disposed in the valve body inflation/deflation chamber 411 in a vertically floating manner, the upper end of the valve stem 42 is disposed in the valve body inflation/deflation upper chamber 4111 and forms a valve stem cap 422, a seal ring seat 421 is formed in the middle of the valve stem 42 and at a, the seal ring seat 421 corresponds to the valve cavity spacer air hole 41131 and a seal ring 4211 is disposed on the upward side of the seal ring seat 421, the seal ring 4211 is sleeved on the valve rod 42 and corresponds to the lower part of the valve cavity spacer air hole 41131, a return spring 43 is sleeved on the valve rod 42 at a position corresponding to the lower part of the seal ring seat 421, the upper end of the return spring 43 is supported on the seal ring seat 421, the lower end of the return spring 43 is supported on the bottom wall of the valve body inflation/deflation cavity lower cavity 4112, a valve body inflation/deflation cavity inlet/outlet air hole 41121 is opened on the bottom wall of the valve body inflation/deflation cavity, the valve body inflation/deflation cavity inlet/outlet air hole 41121 is communicated with the air bag inflation/deflation valve distribution joint 32, a valve body fastening sleeve 44 is sleeved on the air bag inflation/deflation valve distribution joint 32, the lower end of the valve body 41 is fixed to the valve body fastening sleeve 44, a valve body cavity seal protection device 45 is sleeved on the upper end of the, a valve body insertion flange 412 extends from the center of the bottom of the valve body 41, the valve body insertion flange 412 is inserted into the air bag inflation/deflation valve fitting 32, and the valve body inflation/deflation chamber inlet/outlet vent 41121 communicates with the center hole of the valve body insertion flange 412.

As shown in fig. 1, a valve body fastening sleeve flange 441 is formed on an upper portion of the valve body fastening sleeve 44, and a valve body flange 413 is formed on an outer wall of a middle portion of the valve body 41, and the valve body flange 413 is engaged with the valve body fastening sleeve flange 441.

Continuing to refer to fig. 1, the valve body cavity seal protection device 45 comprises a ferrule 451, a ferrule connecting piece 452 and a valve rod cap pressing flange 453, the ferrule 451 is sleeved on the upper end of the valve body 41, the ferrule connecting piece 452 extends directly from the ferrule 451, the valve rod cap pressing flange 453 is formed on one end of the ferrule connecting piece 452 far from the ferrule 451 at a position corresponding to the valve body inflation/deflation upper cavity 4111 and is matched with a cavity opening of the valve body inflation/deflation upper cavity 4111, wherein the ferrule 451, the ferrule connecting piece 452 and the valve rod cap pressing flange 453 are made of transparent silicon rubber.

After the medical staff completes the intubation of the patient, in order to avoid the catheter from sliding out of the bladder, the medical staff operates the air bag inflation and deflation valve 4 by using tools such as an empty syringe, specifically: the valve rod cap pressing flange 453 is opened, the needle tube of the injector is pressed against the valve rod cap 422, the valve rod 42 moves downwards, the return spring 43 is compressed to store energy along with the downward movement of the valve rod 42, meanwhile, the sealing ring seat 421 and the sealing ring 4211 move downwards to remove the sealing of the sealing ring 4211 on the valve cavity spacer gas hole 41131, the air injected by the injector sequentially enters the air bag cavity 1431 of the air bag 143 through the valve body inflation/deflation upper cavity 4111, the valve body inflation/deflation lower cavity 4112, the valve body inflation/deflation cavity inlet/outlet gas hole 41121, the vent pipe hole 31 of the vent pipe 3, the vent cavity 12 of the tube body 1 and the vent cavity inlet/outlet 121 of the vent cavity 12, the air bag 143 expands and is expanded with the bladder wall, and the situation that the tube body 1 of the catheter slips off from. After the inflation is completed, the valve rod 42 is moved upwards by the restoring force of the return spring 43, and the valve cavity spacer gas hole 41131 is sealed by the seal ring 4211.

When the catheter tube 1 is inserted into the bladder and the end thereof is pulled out of the bladder after the catheterization procedure (usually 3-5 days, which can be determined according to the pathological condition of the patient) is completed, the air bag 143 is deflated, specifically: depending on the circumstances, the valve stem cap 422 may be pushed by the patient himself or by an attendant or a medical staff member to move the valve stem 42 downward, the seal ring 4211 releases the closure of the valve chamber spacer vent 41131, the air in the air chamber 1431 is led to the outside from the upper end of the valve body 41 by the reverse route, and the air chamber 143 is deflated to collapse, and at this time, the tube body 1 can be extracted from the bladder with lightness and without causing pain to the patient, so that the flexibility of use mentioned in the above technical effect column by the applicant can be embodied without depending on the medical staff member.

In this embodiment, if the drug is administered after the irrigation solution is completely irrigated or before the irrigation, the drug is administered according to the same principle of irrigation, and the drug solution is introduced into the bladder through the drug injection hole 142.

Example 2:

referring to fig. 3, a chemical feeding tube 22 extends from the urine collection bag adapter sleeve 2, the chemical feeding tube 22 is communicated with the liquid through cavity 11, and a syringe chemical feeding transition connector 6 having the same structure as the syringe cleaning liquid injection transition connector 5 is connected to the chemical feeding tube 22.

In this embodiment, a transition strip 513 extends on the outer wall of the upper end of the transition joint body 51 at a position corresponding to the upper part of the urine collection bag matching port sealing sleeve 52, and a fixing collar 5131 is formed at the end of the transition strip 513, and the fixing collar 5131 is sleeved on the urine collection bag matching sleeve 2. When the procedure described in example 1 is used to inject the transition joint 5 with the aid of a syringe cleaning fluid and to inject a flushing fluid into the bladder through the syringe, the aforementioned syringe dosing transition joint 6 should be in a state of fitting closed to the upper opening of the dosing tube 22, otherwise the flushing fluid entering the urine collection bag adapter sleeve 2 may short-cut into the dosing tube 22 and overflow from the upper opening of the dosing tube 22. After the injection of the flushing liquid by the syringe cleaning liquid injection transition joint 5 is completed and the connection between the urine collection bag fitting port 21 and the urine collection bag inlet nozzle is completed, the plugging of the syringe chemical adding transition joint 6 to the upper opening part, i.e. the nozzle, of the chemical adding pipe 22 is released, and the upper part of the chemical adding pipe 22 is connected with a chemical adding bag not shown in the figure. Of course, the medicine can be added by medical staff through the syringe and the syringe medicine adding transition connector 6 according to the requirement. Since the structure of the syringe medicine adding transition joint 6 is the same as that of the syringe cleaning liquid injection transition joint 5 and the working principle is the same, further description is omitted by the applicant.

To sum up, the technical solution provided by the present invention remedies the defects in the prior art, successfully completes the invention task, and faithfully embodies the technical effects mentioned in the above technical effect column by the applicant.

Claims

1. A multifunctional catheter comprises a catheter body (1), wherein a liquid through cavity (11) and a ventilation cavity (12) are formed in the length direction of the catheter body (1), the ventilation cavity (12) is isolated from the liquid through cavity (11), one end, used for being matched and connected with a urine collecting bag, of the catheter body (1) in a use state forms a catheter body liquid outlet end (13), one end, used for being inserted into a patient body, of the catheter body (1) in the use state forms a catheter body liquid inlet end (14), a liquid inlet hole (141) is formed in the end face of the catheter body liquid inlet end (14), a medicine injection hole (142) is formed in the lateral portion of the catheter body liquid inlet end (14), the liquid inlet hole (141) and the medicine injection hole (142) are communicated with the liquid through cavity (11), an air bag (143) is enveloped on the outer wall of the catheter body liquid inlet end (14) and positioned above the medicine injection hole (142) in the use state, the air bag (143) and the pipe body liquid inlet end (14) of the pipe body (1) form an integral structure, a space between the inner wall of the air bag (143) and the outer wall of the pipe body liquid inlet end (14) forms an air bag cavity (1431), and the ventilation cavity (12) is communicated with the air bag cavity (1431); a urine collection bag adapting sleeve (2), one end of the urine collection bag adapting sleeve (2) facing the tube body (1) and the tube body liquid outlet end (13) of the tube body (1) form an integral structure, and one end of the urine collection bag adapting sleeve (2) far away from the tube body liquid outlet end (13) forms a urine collection bag adapting port (21); one end of the vent pipe (3) facing the urine collection bag adapting sleeve (2) and the urine collection bag adapting sleeve (2) form an integral structure, a vent pipe hole (31) of the vent pipe (3) is communicated with the vent cavity (12), and one end of the vent pipe (3) far away from the urine collection bag adapting sleeve (2) forms an air sac inflation and deflation valve distribution joint (32); the air bag inflation and deflation valve (4), the air bag inflation and deflation valve (4) is connected with the air bag inflation and deflation valve joint (32) in a matching way; the device is characterized by also comprising a syringe cleaning solution injection transition joint (5), wherein the syringe cleaning solution injection transition joint (5) is in plug fit with the urine collection bag matching port (21).

2. The multifunctional urinary catheter according to claim 1, wherein the syringe cleaning solution injection transition joint (5) comprises a transition joint body (51) and a urine collection bag adapter gland (52), when the cleaning solution is injected by the syringe, the lower end of the transition joint body (51) is inserted into the urine collection bag adapter (21), the upper end of the transition joint body (51) is formed with a syringe needle tube adapter (511) for the syringe needle tube of the syringe to be adapted, the syringe needle tube jack (5111) of the syringe needle tube adapter (511) is communicated with the transition joint body central hole (512) of the transition joint body (51), the urine collection bag adapter gland (52) is integrally formed in the middle of the outer wall of the transition joint body (51), and the space between the inner wall of the urine collection bag adapter gland (52) and the outer wall of the transition joint body (51) is formed as a urine collection bag adapter sleeve probing gap (521), when the lower end of the transition joint body (51) is inserted into the urine collection bag matching port (21), the upper edge of the urine collection bag matching sleeve (2) extends into the urine collection bag matching sleeve extending gap (521) and forms a sealing relation with the urine collection bag matching port sealing sleeve (52).

3. A multifunctional urinary catheter according to claim 2, characterized in that a cap connecting piece (514) extends on the transition joint body (51) and at a position corresponding to the upper side of the urine collection bag coupling port sealing boot (52), a syringe barrel insertion hole cap (5141) is formed on the cap connecting piece (514) and at a position corresponding to the syringe barrel insertion hole (5111), and the syringe barrel insertion hole cap (5141) is fitted with the syringe barrel insertion hole (5111).

4. A multifunctional urinary catheter according to claim 2, characterized in that the width of the urine collection bag adapter sleeve probing gap (521) is adapted to the wall thickness of the urine collection bag adapter sleeve (2).

5. The multifunctional urinary catheter according to claim 1, characterized in that the catheter body (1), the urine collection bag adapter sleeve (2), the vent tube (3), the transition joint body (51) of the syringe cleaning solution injection transition joint (5) and the urine collection bag adapter seal sleeve (52) are made of transparent silicone rubber.

6. A multifunctional urinary catheter according to claim 1, characterized in that a blue development line (15) is laid in the wall of the tube body (1) and along the length of the tube body (1), the blue development line (15) extending to the drug injection hole (142) towards the end of the tube body at the inlet end (14).

7. The multifunctional urinary catheter according to claim 1, characterized in that the balloon inflation/deflation valve (4) comprises a valve body (41), a valve rod (42), a return spring (43), a valve body fastening sleeve (44) and a valve body cavity sealing protection device (45), the valve body (41) is provided with a valve body inflation/deflation cavity (411), a valve cavity spacer (4113) is formed in the middle of the valve body inflation/deflation cavity (411) in the height direction, the valve cavity spacer (4113) divides the valve body inflation/deflation cavity (411) into a valve body inflation/deflation upper cavity (4111) above the valve cavity spacer (4113) and a valve body inflation/deflation lower cavity (4112) below the valve cavity spacer (4113), a valve cavity spacer (41131) for communicating the valve body inflation/deflation upper cavity (4111) with the valve body inflation/deflation lower cavity (4112) is arranged in the valve body inflation/deflation cavity (411) in the central position of the valve cavity spacer (4113), the valve rod (42) is arranged in, the upper end of the valve rod (42) is positioned in the upper inflation and deflation cavity (4111) of the valve body and is formed with a valve rod cap (422), the middle part of the valve rod (42) and the position corresponding to the lower part of the valve cavity spacer (4113) are formed with a sealing ring seat (421), the sealing ring seat (421) corresponds to the valve cavity spacer air hole (41131) and one upward side of the sealing ring seat (421) is provided with a sealing ring (4211), the sealing ring (4211) is sleeved on the valve rod (42) and corresponds to the lower part of the valve cavity spacer air hole (41131), a return spring (43) is sleeved on the valve rod (42) at the position corresponding to the lower part of the sealing ring seat (421), the upper end of the return spring (43) is supported on the sealing ring seat (421), and the lower end of the return spring (43) is supported on the bottom wall of the inflation and deflation cavity (4112) of the valve body, a valve body inflation and deflation cavity air inlet and outlet hole (41121) is formed in the bottom wall of the valve body inflation and deflation cavity, the valve body inflation and deflation cavity air inlet and outlet hole (41121) is communicated with the air bag inflation and deflation valve distribution joint (32), a valve body fastening sleeve (44) is sleeved on the air bag inflation and deflation valve distribution joint (32), the lower end of the valve body (41) is fixed with the valve body fastening sleeve (44), a valve body cavity sealing protection device (45) is sleeved at the upper end of the valve body (41) and matched with or disengaged from a cavity opening of the valve body inflation and deflation upper cavity (4111), a valve body insertion flange (412) extends in the central position of the bottom of the valve body (41), the valve body insertion flange (412) is inserted into the air bag inflation and deflation valve distribution joint (32), and the valve body inflation and deflation cavity air inlet and outlet hole (41121) is communicated with a central hole of the valve body insertion flange (412).

8. The multifunctional urinary catheter according to claim 7, wherein a valve body adapter flange (441) is formed on the upper portion of the valve body adapter sleeve (44), and a valve body flange (413) is formed on the outer wall of the middle portion of the valve body (41), the valve body flange (413) being engaged with the valve body adapter flange (441).

9. The multifunctional urinary catheter according to claim 7, characterized in that the valve body cavity seal protection device (45) comprises a ferrule (451), a ferrule connecting piece (452), and a valve rod cap pressing flange (453), wherein the ferrule (451) is sleeved on the upper end of the valve body (41), the ferrule connecting piece (452) is formed on the ferrule (451) in an extending manner, the valve rod cap pressing flange (453) is formed on one end of the ferrule connecting piece (452) far away from the ferrule (451) at a position corresponding to the valve body inflation/deflation upper cavity (4111) and is matched with a cavity opening of the valve body inflation/deflation upper cavity (4111), and wherein the ferrule (451), the ferrule connecting piece (452), and the valve rod cap pressing flange (453) are made of transparent silicone rubber.

10. The multifunctional urinary catheter according to claim 1, characterized in that a drug adding pipe (22) extends from the urine collection bag adapter sleeve (2), the drug adding pipe (22) is communicated with the liquid through cavity (11), and a syringe drug adding transition connector (6) with the same structure as the syringe cleaning liquid injection transition connector (5) is connected to the drug adding pipe (22).