CN110237405B

CN110237405B - Multifunctional catheter

Info

Publication number: CN110237405B
Application number: CN201910614094.4A
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: 2024-02-20
Anticipated expiration: 2039-07-09
Also published as: CN110237405A

Abstract

A multifunctional catheter belongs to the technical field of medical appliances. The urine collecting bag comprises a tube body, wherein a liquid passing cavity and a ventilation cavity are formed in the length direction of the tube body and are isolated, one end of the tube body, which is used for being matched and connected with the urine collecting bag, is a liquid outlet end of the tube body, one end, which is used for being inserted into a patient, 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 part of the liquid inlet end of the tube body, and an air bag is enveloped on the outer wall of the liquid inlet end of the tube body; the urine collecting bag is connected with the sleeve pipe in a matching way, one end of the sleeve pipe and the liquid outlet end of the pipe body form an integrated structure, and the other end of the sleeve pipe forms a urine collecting bag matching port; one end of the vent pipe and the urine collecting bag connecting sleeve form an integrated structure, and the other end of the vent pipe is provided with an air bag inflation and deflation valve connecting head; the air bag inflation and deflation valve is connected with the air bag inflation and deflation valve fitting in a matching way; the characteristics are as follows: the urine collecting bag also comprises a syringe cleaning liquid injection transition joint which is matched with the urine collecting bag matching joint in a plugging and pulling way. The sanitation is ensured, and the waste of cleaning liquid is prevented; reasonable structure, convenient operation and the advantage of having operation flexibility.

Description

Multifunctional catheter

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a multifunctional catheter.

Background

The known catheters are mainly made of natural rubber, silicone rubber or polyvinyl chloride (PVC) material, wherein white transparent silicone rubber is mostly used for making the catheters.

As is known in the art, the aforementioned urinary catheter is a medical device that is widely used by postoperative patients to perform drainage by inserting the urinary bladder through the urethral orifice under nursing intervention and under aseptic conditions, and is commonly used by patients with difficult postoperative, anesthesia and urination. Taking the patient after the prostate operation as an example, the normal urination function of the horse is difficult to recover due to the operation just done, the urinary catheter is inserted and reserved for a period of time, and the length of the reserved time is determined by the illness state of the patient.

Technical information about catheters is not lacking in the published chinese patent literature, and examples are CN202161458U (precisely positioned balloon catheter), CN104800957a (a catheter), CN207605217U (a burst-resistant double-lumen balloon catheter), CN107497034a (a coated threaded catheter), CN205885943U (a J-shaped catheter with reinforcing ribs), CN201290794Y (an open-type silicone catheter), CN205411900U (a portable double-lumen balloon catheter), CN106215309a (a catheter with an observation balloon) and CN109498969a (an administration catheter), and so on.

Not limited to the exemplified above patents, while each having unique technical effects, there are the following general disadvantages: because the injector is needed to be used for injecting the cleaning liquid into the urine collecting bag matching port of the catheter before catheterization is carried out on a catheterized patient so as to carry out necessary cleaning on the bladder, but because the injection head of the injector, namely the needle tube matching port, is not matched with the urine collecting bag matching port of the catheter, on one hand, the leakage situation of the cleaning liquid can be generated in the process of operating the injector by medical staff, so that the loss of the cleaning liquid is caused, on the other hand, the limbs of the medical staff, such as fingers and the like, can be stained with the cleaning liquid, and on the other hand, the cleaning liquid possibly flows to the patient and even the clothing along the catheter. In addition, although the above-mentioned patents mostly refer to the air bag inflation and deflation valve, no specific structure of the air bag inflation and deflation valve is provided, and in the actual use process, if the air bag inflation and deflation valve has a unreasonable structure, for example, the operation is inconvenient, the tightness is poor, the air bag inflation and deflation valve is easy to be blocked by foreign matters, and the use effect is affected. In view of the foregoing, improvements are needed and the technical solutions described below are created in this context.

Disclosure of Invention

The invention aims at providing the multifunctional catheter which is beneficial to temporary matching with the urine collection bag matching interface so as to ensure that medical staff can inject flushing fluid into the bladder of a patient by using the syringe, and the leakage condition can not occur in the process of injecting the flushing fluid, thereby ensuring the sanitation and avoiding the waste of the flushing fluid.

Another task of the present invention is to provide a multifunctional urinary catheter which is advantageous for embodying the rationality, convenience of operation and flexibility of the balloon inflation and deflation valve structure.

In order to embody the primary task of completing the invention, the technical scheme provided by the invention is as follows: a multifunctional catheter comprises a catheter body, wherein a liquid through cavity and a gas through cavity are formed in the length direction of the catheter body, the gas through cavity is isolated from the liquid through cavity, one end of the catheter body, which is used for being matched with a urine collecting bag in a use state, is formed into a catheter body liquid outlet end, one end of the catheter body, which is used for being inserted into a patient in the use state, is formed into a catheter body liquid inlet end, a liquid inlet hole is formed in the end face of the catheter body liquid inlet end, a medicine injection hole is formed in the side part of the catheter body liquid inlet end, 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 catheter body liquid inlet end and above the medicine injection hole in the use state, the air bag and the catheter body liquid inlet end form an integral structure, a space between the inner wall of the air bag and the outer wall of the catheter body liquid inlet end forms an air bag cavity, and the gas bag cavity is communicated with the air bag cavity; the urine collecting bag matching sleeve forms an integrated structure with the liquid outlet end of the pipe body at one end of the urine collecting bag matching sleeve facing the pipe body, and forms a urine collecting bag matching interface at one end of the urine collecting bag matching sleeve far away from the liquid outlet end of the pipe body; the end of the vent pipe, which faces the urine collection bag matching sleeve, and the urine collection bag matching sleeve form an integrated structure, a vent pipe hole of the vent pipe is communicated with the vent cavity, and an air bag inflation and deflation valve matching joint is formed at the end of the vent pipe, which is far away from the urine collection bag matching sleeve; the air bag inflation and deflation valve is connected with the air bag inflation and deflation valve fitting in a matching way; is characterized by further comprising a syringe cleaning fluid injection transition joint which is in plug fit with the urine collection bag matching interface.

In a specific embodiment of the present invention, the syringe cleaning solution injection transitional joint comprises a transitional joint body and a urine collection bag matching port sealing sleeve, when the syringe is used for injecting cleaning solution, the lower end of the transitional joint body is inserted into the urine collection bag matching port, the upper end of the transitional joint body is provided with a syringe needle tube matching joint for matching a syringe needle tube of the syringe, a syringe needle tube jack of the syringe needle tube matching joint is communicated with a central hole of the transitional joint body, the urine collection bag matching port sealing sleeve is integrally formed in the middle part of the outer wall of the transitional joint body, and a space between the inner wall of the urine collection bag matching port sealing sleeve and the outer wall of the transitional joint body is formed into a urine collection bag matching sleeve penetrating gap, and when the lower end of the transitional joint body is inserted into the urine collection bag matching port, the upper edge of the urine collection bag matching sleeve penetrates into the urine collection bag matching sleeve penetrating gap and forms a sealing relationship with the urine collection bag matching port sealing sleeve.

In another specific embodiment of the invention, a plug cover connecting piece extends on the transitional joint body and at a position corresponding to the upper side part of the urine collection bag matching interface sealing sleeve, and a needle tube plug cover is formed on the plug cover connecting piece and at a position corresponding to the needle tube plug hole of the injector, and is matched with the needle tube plug hole of the injector.

In a further specific embodiment of the invention, the width of the urine collection bag adapter sleeve penetration gap is adapted to the wall thickness of the urine collection bag adapter sleeve.

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

In a further specific embodiment of the present invention, a blue development line is disposed in the wall of the tube body and along the length direction of the tube body, and extends to the injection hole toward one end of the liquid inlet end of the tube body.

In order to embody another task of accomplishing the present invention, the technical scheme provided by the present invention is as follows: the air bag inflating and deflating 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 inflating and deflating cavity, a valve cavity spacer is formed in the middle of the valve body inflating and deflating cavity in the height direction, the valve cavity spacer divides the valve body inflating and deflating cavity into a valve body inflating and deflating upper cavity above the valve cavity spacer and a valve body inflating and deflating lower cavity below the valve cavity spacer, a valve cavity spacer air hole for penetrating the valve body inflating and deflating upper cavity and the valve body inflating and deflating lower cavity is formed in the central position of the valve cavity spacer, the valve rod is arranged in the valve body inflating and deflating cavity in a floating manner, the upper end of the valve rod is positioned in the valve body inflating and deflating upper cavity and is provided with a valve rod cap, a sealing ring seat is formed in the middle of the valve rod and at the position corresponding to the lower position of the valve cavity spacer, the sealing ring seat corresponds to the valve cavity spacer air hole, a sealing ring is arranged on one side of the sealing ring seat facing upwards, the sealing ring is sleeved on the valve rod and corresponds to the lower part of the valve cavity spacer air hole, 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 the valve body inflation and deflation cavity of the valve body inflation and deflation lower cavity, the bottom wall of the valve body inflation and deflation cavity is provided with a valve body inflation and deflation cavity air inlet and outlet hole which is communicated with the air bag inflation and deflation valve fitting, the valve body fastening sleeve is sleeved on the air bag inflation and deflation valve fitting, the lower end of the valve body is fixed with the valve body fastening sleeve, the valve body cavity sealing protection device is sleeved on the upper end of the valve body and is matched or released from the cavity opening of the valve body inflation and deflation upper cavity, the central position of the bottom of the valve body is extended with a valve body inserting flange which is inserted into the air bag inflation and deflation valve fitting, and the air inlet and outlet holes of the valve body inflation and deflation cavity are communicated with the central hole of the valve body inserting flange.

In a further specific embodiment of the invention, a valve body fastening sleeve flange is formed on the upper part of the valve body fastening sleeve, and a valve body flange edge is formed on the outer wall of the middle part of the valve body, and is matched with the valve body fastening sleeve flange.

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

In a still more specific embodiment of the invention, a dosing tube extends on the urine collection bag adapter sleeve, the dosing tube is communicated with the liquid through cavity, and a syringe dosing transition connector with the same structure as the syringe cleaning liquid injection transition connector is connected to the dosing tube.

According to the technical scheme provided by the invention, the injector cleaning liquid injection transition joint which can be matched with the urine collection bag matching sleeve in a reliable sealing way and can be conveniently matched with the injector needle tube is arranged on the urine collection bag matching sleeve, so that when the cleaning liquid is injected into the bladder of a patient, the lower end of the injector cleaning liquid injection transition joint is matched with the urine collection bag matching joint, the injector needle tube is matched with the upper end of the injector cleaning liquid injection transition joint, and in addition, the leakage condition can not occur in the process of injecting the cleaning liquid into the bladder of the patient through the injector, the sanitation can be ensured, and the waste of the cleaning liquid can be prevented. In addition, the air bag inflation and deflation valve provided by the invention has the advantages of reasonable structure, convenience in operation and flexibility in operation.

Drawings

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

Detailed Description

In order to make the technical spirit and advantages of the present invention more clearly understood, the applicant will now make a detailed description by way of example, but the description of the examples is not intended to limit the scope of the invention, and any equivalent transformation made merely in form, not essentially, according to the inventive concept should be regarded as the scope of the technical solution of the present invention.

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

Example 1:

referring to fig. 1, a tube 1 is shown, a liquid through cavity 11 and a gas through cavity 12 (also referred to as "vent hole") are formed in the length direction of the tube 1, the gas through cavity 12 is isolated from the liquid through cavity 11, one end of the tube 1, which is used for being matched with a urine collecting bag in a use state, is formed into a tube liquid outlet end 13, one end of the tube 1, which is used for being inserted into a patient in a use state, is formed into a tube liquid inlet end 14, a liquid inlet hole 141 is formed in the end face of the tube liquid inlet end 14, a drug injection hole 142 is formed in the side part of the tube liquid inlet end 14, the drug injection hole 142 has the effect of liquid out of a cleaning liquid, the liquid inlet hole 141 and the drug injection hole 142 are both communicated with the liquid through cavity 11, a balloon 143 is enveloped at a position on the outer wall of the tube liquid inlet end 14 and above the drug injection hole 142 in the use state, the balloon 143 and the tube liquid inlet end 14 of the tube 1 forms an integral structure, and the space 1431 between the inner wall of the tube liquid inlet end 14 and the balloon cavity 14 is formed into a front space 1431; a urine collecting bag matching sleeve pipe 2 is shown, one end of the urine collecting bag matching sleeve pipe 2 facing the pipe body 1 and the pipe body liquid outlet end 13 of the pipe body 1 form an integral structure, one end of the urine collecting bag matching sleeve pipe 2 away from the pipe body liquid outlet end 13 forms a urine collecting bag matching interface 21, and in a urine guiding state, the urine collecting bag matching interface 21 is matched and connected with a urine collecting bag liquid inlet connector on the urine collecting bag; a vent pipe 3 is shown, one end of the vent pipe 3 facing the urine collecting bag matching sleeve 2 forms an integral structure with the urine collecting bag matching sleeve 2, a vent pipe hole 31 of the vent pipe 3 is communicated with the vent cavity 12, and a gas bag charging and discharging valve matching joint 32 is formed at one end of the vent pipe 3 away from the urine collecting bag matching sleeve 2; a bladder inflation and deflation valve 4 is shown, the bladder inflation and deflation valve 4 being coupled to the bladder inflation and deflation valve fitting 32 described above.

The technical key points of the technical scheme provided by the invention are as follows: the structure system of the multifunctional catheter also comprises a syringe cleaning liquid injection transition joint 5, and the syringe cleaning liquid injection transition joint 5 is in plug fit with the urine collecting bag matching interface 21.

The aforementioned syringe cleaning solution injection transition joint 5 comprises a transition joint body 51 and a urine collection bag mating port sealing sleeve 52, when the syringe cleaning solution is injected from the syringe, the lower end of the transition joint body 51 is inserted into the urine collection bag mating port 21, the upper end of the transition joint body 51 is formed with a syringe needle tube mating port 511 for mating with the syringe needle tube of the syringe, the syringe needle tube insertion hole 5111 of the syringe needle tube mating port 511 is communicated with the central hole 512 of the transition joint body 51, the urine collection bag mating port sealing sleeve 52 is integrally formed in the middle part of the outer wall of the transition joint body 51, and the space between the inner wall of the urine collection bag mating port sealing sleeve 52 and the outer wall of the transition joint body 51 is formed into a urine collection bag mating sleeve insertion gap 521, and when the lower end of the transition joint body 51 is inserted into the urine collection bag mating port 21, the upper edge of the urine collection bag mating sleeve 2 is inserted into the urine collection bag mating sleeve insertion gap 521 and forms a sealing relationship with the urine collection bag mating sealing sleeve 52.

A cap connection piece 514 is extended on the transitional coupling body 51 at a position corresponding to the upper side of the urine collection bag coupling gland 52, and a syringe insertion hole cap 5141 is formed on the cap connection piece 514 at a position corresponding to the syringe insertion hole 5111, and the syringe insertion hole cap 5141 is matched with the syringe insertion hole 5111.

In the non-use state, the whole injector cleaning liquid injection transition joint 5 is attached to the urine collection bag matching sleeve 2, specifically: the fixing collar 5131 is sleeved outside the urine collection bag coupling sleeve 2, the transition joint body 51 is in a state of being separated from the urine collection bag coupling port 21 under the maintenance of the transition bar 513, and the needle tube jack plug cover 5141 is in a state of being inserted into the syringe needle tube jack 5111. When the bladder of the patient is to be cleaned, the lower end of the transition joint body 51 is inserted into the urine collection bag matching interface 21, at this time, the upper part of the urine collection bag matching interface 21 is inserted into the insertion gap 521 of the urine collection bag matching sleeve to form a good seal, the needle tube insertion hole plug 5141 is opened, the syringe needle tube of the syringe (commonly called as a needle tube) containing cleaning fluid is aligned with the syringe needle tube insertion hole 5111 by medical staff, namely, the syringe needle tube insertion hole 5111 is inserted and matched with the syringe needle tube, the syringe piston is pushed, the cleaning fluid in the syringe is pushed out, and the cleaning fluid is sequentially led out into the bladder from the liquid inlet hole 141 and the drug injection hole 142 through the liquid through cavity 11 of the urine collection bag matching sleeve 2 and the tube body 1, and at this time, the liquid inlet hole 141 is evolved into a cleaning fluid outlet hole. After cleaning, the transition joint body 51 is pulled out, namely, is withdrawn from the urine collection bag matching interface 21, and the urine collection bag matching interface 21 is matched with a urine collection bag liquid inlet connector on the urine collection bag in an inserting way.

Preferably, the width of the aforementioned urine collection bag coupling sleeve penetration gap 521 is adapted to the wall thickness of the aforementioned urine collection bag coupling sleeve 2 to embody a desired sealing effect.

In this embodiment, the tube body 1, the urine collection bag coupling sleeve 2, the vent pipe 3, the transitional joint body 51 of the syringe cleaning fluid injection transitional joint 5 and the urine collection bag coupling sealing sleeve 52 are made of transparent silicone rubber, and a blue developing line 15 is laid in the tube wall of the tube body 1 along the length direction of the tube body 1, and the blue developing line 15 extends to the drug injection hole 142 toward one end of the tube body fluid inlet end 14. Since the function of the blue development line 15 belongs to the prior art, see for example CN201290794Y mentioned in the background section above by the applicant, no further description is given.

Referring to fig. 1 and 2, the air bag charging/discharging valve 4 includes 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 has a valve body charging/discharging cavity 411, a valve cavity spacer 4113 is formed in the middle of the valve body charging/discharging cavity 411 in the height direction, the valve cavity spacer 4113 divides the valve body charging/discharging cavity 411 into a valve body charging/discharging upper cavity 4111 above the valve cavity spacer 4113 and a valve body charging/discharging lower cavity 4112 below the valve cavity spacer 4113, a valve cavity spacer air hole 41131 for penetrating the valve body charging/discharging upper cavity 4111 and the valve body charging/discharging lower cavity 4112 is formed in the center of the valve cavity spacer 4113, the valve rod 42 is arranged in the valve body charging/discharging cavity 411 in a floating manner up and down, the upper end of the valve rod 42 is located in the valve body charging/discharging upper cavity 4111 and is formed with a valve rod cap 422, a sealing ring seat 421 is formed in the middle of the valve rod 42 and at a position corresponding to the lower position of the valve cavity spacer 4113, the seal ring seat 421 corresponds to the valve cavity spacer air hole 41131, a seal ring 4211 is arranged on one side of the seal ring seat 421 facing upwards, 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, the 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 air charging and discharging cavity of the valve body air charging and discharging lower cavity 4112, a valve body air charging and discharging cavity air inlet and outlet hole 41121 is formed on the bottom wall of the valve body air charging and discharging cavity, the valve body air charging and discharging cavity air outlet hole 41121 is communicated with the air bag air charging and discharging valve matching joint 32, the valve body fastening sleeve 44 is sleeved on the air bag air charging and discharging valve matching joint 32, the lower end of the valve body 41 is fixed with the valve body fastening sleeve 44, the valve body cavity seal protector 45 is sleeved on the upper end of the valve body 41 and is matched with or released from the cavity mouth of the valve body inflation and deflation upper cavity 4111, wherein a valve body insertion flange 412 is extended at 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 fitting 32, and the valve body inflation and deflation cavity air inlet and outlet hole 41121 is communicated with the central hole of the valve body insertion flange 412.

As shown in fig. 1, a valve body fastening sleeve flange 441 is formed at an upper portion of the valve body fastening sleeve 44, and a valve body flange 413 is formed at 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.

With continued reference to fig. 1, the valve body cavity seal protection device 45 includes a ferrule 451, a ferrule connecting piece 452 and a valve stem cap pressing flange 453, the ferrule 451 is sleeved on the upper end of the valve body 41, the ferrule connecting piece 452 is directly extended to form on the ferrule 451, the valve stem cap pressing flange 453 is formed at an end of the ferrule connecting piece 452 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, wherein the ferrule 451, the ferrule connecting piece 452 and the valve stem cap pressing flange 453 are made of transparent silicone rubber.

When the medical staff has completed the catheterization of the patient, in order to avoid the catheter slipping out of the bladder, the balloon inflation and deflation valve 4 is operated by the medical staff with a tool, such as with an empty syringe, in particular: opening valve rod cap pressing flange 453, pressing the syringe needle against valve rod cap 422, making valve rod 42 move down, along with the descending of valve rod 42, return spring 43 compresses and stores energy, and simultaneously sealing ring seat 421 moves down together with sealing ring 4211, releasing sealing of sealing ring 4211 to valve cavity spacer air hole 41131, air injected by the syringe sequentially passes through valve body inflation and deflation upper cavity 4111, valve cavity spacer air hole 41131, valve body inflation and deflation lower cavity 4112, valve body inflation and deflation cavity inlet and outlet air hole 41121, ventilation pipe hole 31 of ventilation pipe 3, ventilation cavity 12 of pipe body 1 and ventilation cavity inlet and outlet 121 of ventilation cavity 12 enter air bag cavity 1431 of air bag 143, air bag 143 bulges and is expanded with the bladder wall, and the situation that pipe body 1 of catheter breaks loose from the bladder and slides out can not occur. After the inflation, the valve rod 42 is moved upward by the restoring force of the return spring 43, and the valve cavity spacer air hole 41131 is sealed by the seal ring 4211.

When the catheterization treatment course (usually 3-5 days, and specifically can be determined according to the pathological condition of the patient) is completed and one end of the tube body 1, which is inserted into the bladder, is required to be pulled out from the bladder, the air bag 143 is firstly deflated, specifically: according to the specific circumstances, the valve stem cap pressing flange 453 can be pressed against the valve stem cap 422 by the patient himself or herself, or by a attendant or a medical staff, so that the valve stem 42 is moved downward, the seal ring 4211 releases the seal of the valve cavity spacer air hole 41131, the air in the air bag chamber 1431 is led to the outside from the upper end of the valve body 41 in the opposite path, and the air bag 143 is deflated and deflated, at this time, the tube body 1 can be pulled out from the bladder gently and without causing pain to the patient, so that the flexibility of use mentioned in the technical effect column mentioned above by the applicant can be represented, and the tube pulling by the medical staff is not necessarily relied on.

In this embodiment, if the rinse solution is administered after or before the rinse solution is completely rinsed, the drug solution is introduced into the bladder from the drug injection hole 142 by the same principle as the rinse solution.

Example 2:

referring to fig. 3, a dosing tube 22 extends over the urine collection bag adaptor sleeve 2, the dosing tube 22 is in communication with the liquid through cavity 11, and a syringe dosing transition connector 6 having the same structure as the syringe cleaning liquid injection transition connector 5 is connected to the dosing tube 22.

In this embodiment, a transition bar 513 is extended 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 collecting bag matching interface sealing sleeve 52, and a fixing collar 5131 is formed at the end of the transition bar 513, and the fixing collar 5131 is sleeved on the urine collecting bag matching sleeve 2. When the transitional coupling 5 is injected by means of the syringe washing liquid and the washing liquid is injected into the bladder through the syringe in the process described in embodiment 1, the syringe dosing transitional coupling 6 should be in a state of being inserted and closed to the upper end opening of the dosing tube 22, otherwise the washing liquid entering the urine collection bag coupling sleeve 2 would be cut off to enter the dosing tube 22 and overflow from the upper opening of the dosing tube 22. After the injection of the flushing liquid by means of the syringe cleaning liquid injection transition joint 5 is completed and the fitting of the urine collection bag fitting port 21 with the aforementioned urine collection bag liquid inlet port is completed, the blocking of the upper opening portion, i.e., the orifice, of the dosing tube 22 by the syringe dosing transition joint 6 is released, and the upper portion of the dosing tube 22 is fitted with a dosing bag not shown in the drawing. Of course, the medical staff can also apply the medicine by means of the syringe and the syringe medicine-applying transitional joint 6 according to the need. The structure of the syringe dosing transition connector 6 is the same as that of the syringe cleaning liquid injection transition connector 5 and the working principle is the same, so the applicant does not need to further describe.

In summary, the technical scheme provided by the invention overcomes the defects in the prior art, successfully completes the task of the invention, and faithfully honors the technical effects carried by the applicant in the technical effect column above.

Claims

1. A multifunctional catheter comprises a catheter body (1), wherein a liquid through cavity (11) and a gas through cavity (12) are formed in the length direction of the catheter body (1), the gas through cavity (12) is isolated from the liquid through cavity (11), one end of the catheter body (1) which is used for being matched with a urine collecting bag in a use state is formed into a catheter body liquid outlet end (13), one end of the catheter body (1) which is used for being inserted into a patient in the use state is formed into 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 side part 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), a position, which is arranged on the outer wall of the catheter body liquid inlet end (14) and is positioned above the medicine injection hole (142), of the catheter body (143), the air bag (1) and the catheter body (14) are enveloped by a position, which is positioned above the medicine injection hole (142), of the catheter body (1), and the air bag (14) are formed into a space (1431) which is communicated with the air bag (12); the urine collecting bag matching sleeve pipe (2) forms an integrated structure with the liquid outlet end (13) of the pipe body (1) at one end of the urine collecting bag matching sleeve pipe (2) facing the pipe body (1), and a urine collecting bag matching interface (21) is formed at one end of the urine collecting bag matching sleeve pipe (2) far away from the liquid outlet end (13) of the pipe body; one end of the ventilation pipe (3) facing the urine collection bag matching sleeve (2) and the urine collection bag matching sleeve (2) form an integrated structure, a ventilation pipe hole (31) of the ventilation pipe (3) is communicated with the ventilation cavity (12), and an air bag inflation and deflation valve matching joint (32) is formed at one end of the ventilation pipe (3) away from the urine collection bag matching sleeve (2); an air bag inflation and deflation valve (4), wherein the air bag inflation and deflation valve (4) is connected with the air bag inflation and deflation valve connector (32) in a matching way; the urine collection bag is characterized by further comprising a syringe cleaning fluid injection transition joint (5), wherein the syringe cleaning fluid injection transition joint (5) is in plug fit with the urine collection bag matching interface (21); the syringe cleaning liquid injection transition joint (5) comprises a transition joint body (51) and a urine collection bag matching interface sealing sleeve (52), when the syringe is used for injecting cleaning liquid, the lower end of the transition joint body (51) is inserted into the urine collection bag matching interface (21), the upper end of the transition joint body (51) is provided with a syringe needle tube matching joint (511) for matching a syringe needle tube of the syringe, a syringe needle tube jack (5111) of the syringe needle tube matching joint (511) is communicated with a central hole (512) of the transition joint body (51), the urine collection bag matching interface sealing sleeve (52) is integrally formed in the middle of the outer wall of the transition joint body (51), and a space between the inner wall of the urine collection bag matching interface (52) and the outer wall of the transition joint body (51) is formed into a urine collection bag matching sleeve penetrating gap (521), and when the lower end of the transition joint body (51) is inserted into the urine collection bag matching interface (21), the upper edge of the urine collection bag matching sleeve (2) is connected with the urine collection bag matching sleeve (521) in a penetrating gap sealing relation; the air bag inflating and deflating 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 inflating and deflating cavity (411), a valve cavity spacer (4113) is formed in the middle of the valve body inflating and deflating cavity (411) in the height direction, the valve cavity spacer (4113) separates the valve body inflating and deflating cavity (411) into a valve body inflating and deflating upper cavity (4111) above the valve cavity spacer (4113) and a valve body inflating and deflating lower cavity (4112) below the valve cavity spacer (4113), a valve cavity air hole (41131) for penetrating the valve body inflating and deflating upper cavity (4111) and the valve body inflating and deflating lower cavity (4112) is formed in the middle of the valve body inflating and deflating cavity (411), the upper end of the valve rod (42) is positioned in the valve body inflating and deflating upper cavity (4111) and is formed with a valve rod cap (422), a sealing ring (4231) is formed in the middle of the valve cavity (42) and in the position corresponding to the lower spacer (4113) and corresponds to the valve cavity (421) and is arranged on one side of the sealing ring (421) and corresponds to the sealing ring (11), 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), the return spring (43) is sleeved on the valve rod (42) at a 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), the lower end of the return spring (43) is supported on the valve body air charging and discharging cavity bottom wall of the valve body air charging and discharging lower cavity (4112), a valve body air charging and discharging cavity air inlet and outlet hole (41121) is formed in the valve body air charging and discharging cavity bottom wall, the valve body air charging and discharging cavity air inlet and outlet hole (41121) is communicated with the air bag air charging and discharging valve distribution joint (32), the valve body fastening sleeve (44) is sleeved on the air bag air charging and discharging valve distribution joint (32), the lower end of the valve body (41) is fixed with the valve body fastening sleeve (44), the valve body cavity sealing protection device (45) is sleeved on the upper end of the valve body (41) and is matched or released with the cavity opening of the valve body air charging and discharging upper cavity (4111), wherein the valve body air charging and discharging cavity (412) is distributed with the air charging and discharging flange (412) of the valve body (412) at the bottom part of the central plug (412) extending to the central plug (412) of the valve body (412) and is distributed with the air charging and discharging flange (412) and is distributed with the central flange (412) of the valve body.

2. A multi-functional urinary catheter according to claim 1, in which a stopper tab (514) extends over the transition joint body (51) and in a position corresponding to the upper side of the bag-fitting sealing sleeve (52), and a syringe receptacle stopper (5141) is formed on the stopper tab (514) and in a position corresponding to the syringe receptacle (5111), the syringe receptacle stopper (5141) being adapted to cooperate with the syringe receptacle (5111).

3. A multi-functional urinary catheter according to claim 1, characterized in that the width of the insertion gap (521) of the bag-fitting sleeve is adapted to the wall thickness of the bag-fitting sleeve (2).

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

5. A multi-functional 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), which blue development line (15) extends towards the end of the liquid inlet end (14) of the tube body to the drug injection hole (142).

6. The multifunctional urinary catheter according to claim 1, characterized in that a valve body fastening sleeve flange (441) is formed at the upper part of the valve body fastening sleeve (44), and a valve body flange (413) is formed on the outer wall of the middle part of the valve body (41), which valve body flange (413) cooperates with the valve body fastening sleeve flange (441).

7. The multifunctional urinary catheter according to claim 1, characterized in that the valve body cavity sealing protection device (45) comprises a ferrule (451), a ferrule connecting piece (452) and a valve stem cap pressing flange (453), the ferrule (451) is sleeved at the upper end of the valve body (41), the ferrule connecting piece (452) is directly extended and formed on the ferrule (451), the valve stem cap pressing flange (453) is formed at a position corresponding to the valve body inflation and deflation upper cavity (4111) at the end of the ferrule connecting piece (452) away from the ferrule (451) and is matched with the cavity opening of the valve body inflation and deflation upper cavity (4111), and the ferrule (451), the ferrule connecting piece (452) and the valve stem cap pressing flange (453) are made of transparent silicone rubber.

8. The multifunctional urinary catheter according to claim 1, characterized in that a dosing tube (22) extends over the urine collection bag coupling sleeve (2), the dosing tube (22) communicates with the liquid through cavity (11), and a syringe dosing transition connector (6) having the same structure as the syringe cleaning liquid injection transition connector (5) is connected to the dosing tube (22).