CN113539039A - Training device and method for drug application operation of male dilatation catheter - Google Patents

Abstract

The application relates to a male dilatation catheter drug application operation training device and a using method thereof, wherein the training device comprises a training catheter, a male urethra-bladder model, a urethral stricture simulation part, a detection display module and a shell, the top end of the head part of the training catheter is provided with an dilatation balloon, the dilatation balloon is provided with a drug application part, and the outer surface of the drug application part is coated with a contact coating; the male urethra and bladder model comprises a bladder simulation part and a urethra simulation part, the urethra stenosis simulation part comprises telescopic parts which are oppositely arranged on two sides of the urethra simulation part, each telescopic part comprises a simulation head, a resettable damper, a fixing part and a contact induction module, and the contact induction module sends acquired contact information with the contact coating to the detection display module. The application provides a male dilatation type catheter medicine application operation training device which can train the operation of medicine application to the narrow part of the urethra and can accurately display the training result of the medicine application operation.

Description

Training device and method for drug application operation of male dilatation catheter

Technical Field

The application relates to the technical field of medical teaching aids, in particular to a male dilatation catheter drug application operation training device and a method for using the same.

Background

The catheterization operation is a clinical care routine operation, and specifically comprises the steps of placing a catheter into a bladder from a urethra, and draining urine from the bladder to the outside of the body. The operation of placing the catheter is serious stimulation to the urethra and the bladder, the male urethra has the structural characteristics of slender and bending, and in addition, the physiological and pathological strictures of the urethra can also exist in male patients who need to carry out the catheterization operation clinically, the difficulty of placing the catheter is increased, and the lower urinary tract injury in the placing process is aggravated.

In order to solve the problem that the top end of the head of the catheter usually needs to be pushed by an increased external force when advancing to the narrow part of the urethra, the shearing action between the top end of the head and the urethra at the narrow part of the urethra can cause the inner membrane of the urethra to be rubbed and contused, and possibly cause the microbial infection, the catheter with the narrow expansion function can be used for the operation of placing the catheter.

Patent 201710345800.0 proposes a narrow dilatation catheter, which has an dilatation balloon at the top of the catheter head, and when the catheter encounters a narrow urethral part in the propelling process, the vertical compression force is applied to the intima tissue of the narrow urethral part through the expansion and dilatation of the dilatation balloon to expand and deform the narrow urethral part, so that the catheter smoothly passes through the expanded narrow urethral part. A preferred embodiment of the patent also has an application portion which is an annular depression on the dilation balloon, and by providing the application portion, precise application of lubricant or medication to the inner membrane of the urethral stricture can be achieved.

The structure and the operation steps of the narrow dilatation catheter with the medicine applying part are more complicated than those of the conventional catheters, and the accurate medicine applying operation cannot be performed under the condition of unfamiliarity with the operation, so that sufficient operation training needs to be performed by people such as clinical nursing staff and urology nurses.

However, the existing catheterization operation teaching aid is not designed specifically for the training of drug application to the narrow part of the urethra in the catheterization process, and is not provided with a catheter for training the drug application operation, and cannot acquire the accurate result of the drug application operation, i.e., cannot acquire the information about whether the drug application part is accurately positioned at the narrow part of the urethra, so that the training effect of the drug application operation cannot be evaluated, and the targeted improvement operation cannot be performed according to the training effect.

Therefore, a device for specially training the drug application operation of the narrow expandable urinary catheter and accurately displaying the drug application operation result is needed, so that the operation training of the narrow expandable urinary catheter is closer to the actual use condition, trainees can quickly become familiar with the drug application operation steps and operation key points of the narrow expandable urinary catheter, and the training effect is improved.

Disclosure of Invention

The application aims to provide a male dilatation catheter drug application operation training device and a using method thereof, which are used for training the drug application operation on a urethral stricture part and accurately displaying the training result of the drug application operation.

One aspect of the application provides a male dilatation catheter drug application operation training device, which comprises a training catheter, a male urethra-bladder model, a urethral stricture simulation part, a detection display module and a shell, wherein an dilatation balloon is arranged at the top end of the head part of the training catheter, the male urethra-bladder model comprises a bladder simulation part and a urethral simulation part, one end of the urethral simulation part is communicated with the bladder simulation part, the other end of the urethral simulation part is communicated with an external space, the detection display module is used for detecting and displaying a drug application operation training result, the shell comprises a shell and a cover plate which are detachably connected, and the male urethra-bladder model and the urethral stricture simulation part are fixedly arranged inside the shell; the expansion balloon comprises a fixing part sleeved at the top end of the head part of the training catheter and an expandable expansion part, the expansion part is provided with a medicine applying part, the medicine applying part is an inward annular recess, and the outer surface of the medicine applying part is coated with a contact coating; the urethra simulation part also comprises an expansion channel corresponding to the urethra stenosis simulation part, and the expansion channel forms an opening on the tube wall of the urethra simulation part; urethral stricture emulation portion including the subtend set up in the pars contractilis of urethra analog portion both sides, pars contractilis including simulation head, the attenuator that can reset, fixed part and the contact response module of the protruding inner membrane tissue of shape imitation urethra stricture portion, the contact response module fixed set up in simulation head tip, the contact response module with detect the display module electricity and be connected, will acquire with the contact information transmission of contact coating arrives detect the display module.

Preferably, the expansion balloon is made of an elastic high polymer material without conductivity and with tension, the contact coating is a conductive coating, the contact sensing module comprises an electrode and a current limiting resistor which are not mutually connected, and the contact information is current information.

Preferably, the dilatation balloon is made of an elastic high polymer material which is not magnetic and has tension, the contact coating is a magnetic conduction coating, the contact induction module is a magnetic induction sensor, and the contact information is magnetic field information.

Furthermore, the resettable damper comprises a resettable piston rod and a sleeve wrapping the piston rod, wherein the end part of the piston rod is fixedly connected with the simulation head and can drive the simulation head to perform resettable reciprocating motion along the expansion channel in a damping motion mode; the resettable damper is fixedly mounted inside the fixing portion.

Further, the detection display module comprises a control submodule, a power supply submodule and a display submodule, wherein the power supply submodule is electrically connected with the control submodule and the display submodule and supplies power to the control submodule, the contact induction module and the display submodule, the control submodule receives contact information sent by the contact induction module, judges whether the contact coating is in contact with the contact induction module according to a preset judgment rule and sends an instruction for displaying a pesticide application operation training result to the display submodule, the control submodule and the power supply submodule are packaged on a circuit substrate, and the display submodule is fixedly installed on the outer side of the cover plate.

Preferably, the preset determination rule is that a conduction current exists inside the contact sensing module.

Preferably, the preset determination rule is that the magnetic field induced by the contact induction module is greater than a preset threshold.

Preferably, the bladder simulation part comprises a first half cavity and a second half cavity which are mirror-symmetrical, the contact surfaces of the first half cavity and the second half cavity are the same in shape, the bladder simulation part is formed completely after buckling, and the first half cavity and the first half tubular channel are integrally formed with the shell; the urethra simulation part comprises a first semi-tubular channel and a second semi-tubular channel which are in mirror symmetry, the contact surfaces of the first semi-tubular channel and the second semi-tubular channel are the same in shape, the first semi-tubular channel and the second semi-tubular channel are buckled to form the complete urethra simulation part, and the second semi-cavity, the second semi-tubular channel and the cover plate are integrally formed; the fixing part and the circuit substrate are detachably mounted on the shell.

Preferably, the cover plate is made of a transparent material.

The embodiment of the application provides a male dilatation catheter drug delivery operation training device which has at least the following beneficial effects:

1. the urinary catheter is used in training is including expanding the sacculus and setting up in the portion of giving medicine to the poor free of charge portion that expands the sacculus, the portion of giving medicine to the poor free of charge portion coating has the contact coating that is used for producing contact information, corresponds on the simulation head of narrow emulation portion of urethra and is provided with the response module, through setting up contact coating and response module, can make pointed references to carry out the expansion of the narrow position of urethra and the operation of giving medicine to poor free of charge for the operation training of narrow expansion type urinary catheter is closer to actual use condition more.

2. The detection display unit judges whether the medicine application operation is carried out at the correct position or not through the contact information, can accurately display the medicine application operation result, and can accurately evaluate the training effect according to the operation result.

Another aspect of the present application provides a method for using the male dilatation catheter drug delivery operation training device, comprising the following steps:

the first step is as follows: placing said training catheter into said urethral simulator;

the second step is that: when the resistance of the urethral stricture simulation part is sensed in the process of implantation, the position of the catheter for training is adjusted forwards and backwards to enable the medicine applying part to be aligned with the contact sensing module;

the third step: performing a drug application operation training by expanding the dilation balloon;

the fourth step: the detection display module acquires the contact information and displays an application operation training result on the display submodule;

the fifth step: and evaluating the training effect of the pesticide applying operation according to the training result of the pesticide applying operation.

Drawings

FIG. 1 is a schematic view of a stenotic dilation catheter performing a catheterizing procedure;

FIG. 2 is a schematic view of a narrow dilatation catheter with an applicator advanced to a urethral stricture;

FIG. 3 is a schematic view of a stricture dilation catheter with a drug delivery portion for dilation and drug delivery in a urethral stricture;

FIG. 4 is a cross-sectional view of an end of an exercise catheter according to an embodiment of the present application placed within a body;

FIG. 5 is a top view of the internal structure of the male dilation catheter application exercise device according to an embodiment of the present application;

FIG. 6 is an exploded view of the assembly of the male dilatation catheter administration training device according to the embodiment of the present application;

FIG. 7 is a top view of a urethral stricture simulation member according to an embodiment of the present application;

FIG. 8 is an exploded view of the telescoping section of an embodiment of the present application;

FIG. 9 is a block diagram of a connection of a detection display module according to an embodiment of the present application;

FIG. 10 is a schematic view of a training catheter contacting a urethral stricture simulation member according to an embodiment of the present application;

FIG. 11 is a schematic view of a contact coating and a contact sensing module of an embodiment of the present application being misaligned;

FIG. 12 is a schematic view of the contact coating and the contact sensing module in alignment according to an embodiment of the present application.

Reference numerals in the figures

11 bladder simulation part, 11 'bladder, 111 first half cavity, 112 second half cavity, 12 urethra simulation part, 12' urethra, 121 first half tubular channel, 122 second half tubular channel, 13 expanding channel, 13 'urethra stenosis part, 2 urethra stenosis simulation part, 20 expansion part, 21 simulation head, 22 resettable damper, 221 piston rod, 222 sleeve, 23 fixing part, 24 contact induction module, 31 shell, 32 cover plate, 40 circuit substrate, 41 control submodule, 42 power supply submodule, 43 display submodule, 5 training catheter, 5' stenosis expansion type catheter, 51 urinary catheter, 52 urine inlet, 53 remaining balloon, 54 expanding balloon, 541 fixedring 542 expanding part, 543 airway, drug application part and 545 contact coating.

Detailed Description

Hereinafter, the present application will be further described based on preferred embodiments with reference to the accompanying drawings.

In addition, for convenience of understanding, various components on the drawings are enlarged (thick) or reduced (thin), but this is not intended to limit the scope of the present application.

Singular references also include plural references and vice versa.

In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually arranged when the embodiments of the present application are used, the description is only for convenience and simplicity, but the indication or suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, cannot be understood as the limitation of the present application. Moreover, the terms first, second, etc. may be used in the description to distinguish between different elements, but these should not be limited by the order of manufacture or by importance to be understood as indicating or implying any particular importance, and their names may differ from their names in the detailed description of the application and the claims.

The terminology used in the description is for the purpose of describing the embodiments of the application and is not intended to be limiting of the application. It is also to be understood that, unless otherwise expressly stated or limited, the terms "disposed," "connected," and "connected" are intended to be open-ended, i.e., may be fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The above-mentioned meanings specifically ascribed to the present application will be understood to those skilled in the art.

To illustrate the embodiment of the present application more clearly, we first describe the procedure of using the narrow expandable urinary catheter of the prior art to perform catheterization, fig. 1 to 3 are schematic diagrams of using the narrow expandable urinary catheter 5 ' of the prior art to perform catheterization, the narrow expandable urinary catheter 5 ' is fixedly provided with anexpansion balloon 54 at the top end of the head, theexpansion balloon 54 is made of flexible material with tension, and includes afixing ring 541 and anexpansion part 542, thefixing ring 541 covers the top end of the head of the urinary catheter and covers anair passage 543 arranged in the wall of the urinary catheter, the outer diameter of theexpansion part 542 is smaller when theexpansion part 542 is not inflated, as a preferable scheme, anapplication part 544 can be further arranged at the interface of theexpansion part 542 and thefixing ring 541, theapplication part 544 is an inward annular recess for containing lubricant or medicine, and other structures of the narrow expandable urinary catheter 5 ' are common structures known by those skilled in the art, and will not be described in detail herein.

When the stricture dilation type urinary catheter 5 'meets the urethral stricture 13' in the advancing process, the head of the urinary catheter with larger outer diameter can not pass through, but thedilation part 542 with smaller outer diameter can enter the stricture urethra 12 ', at the moment, thedilation part 542 is inflated through theair passage 543, thedilation part 542 expands along with the inflation, the generated compression force vertically acts on the endourethral membrane at the stricture to dilate the urethra 12' at the stricture, themedicine applying part 544 gradually expands along with the expansion of thedilation part 542, the contained lubricant or medicine is applied to the endourethral at the stricture, then the air is discharged through theair passage 543 to swell and relieve thedilation part 542, the endomembrane tissue at the stricture part can basically keep the dilated state for a period of time after the compression deformation, meanwhile, the lubricant applied to the endomembrane at the stricture part enables the head tip of the stricture type urinary catheter 5 'to easily pass through the dilated urethra 12', after the catheter head enters the bladder 11 ', theindwelling balloon 53 is expanded to fix the catheter head in the bladder 11 ', and the urine in the bladder 11 ' is discharged out of the body through theurine inlet 52 via thecatheter tube 51.

The structure and the operation steps of the stricture dilatation catheter with thedrug application part 544 are more complicated than those of the conventional catheters, and the precise drug application operation cannot be performed under the condition of unfamiliarity with the operation, so that sufficient operation training needs to be performed by people such as clinical nursing staff and urology nurses.

However, the existing catheterization teaching aid is not designed specifically for the training of drug application to the urethral stricture part in the catheterization process, and has no catheter for training the drug application operation and no accurate result of the drug application operation, i.e., information on whether thedrug application part 544 is accurately positioned at the urethral stricture part can not be obtained, so that the training effect of the drug application operation can not be evaluated, and the operation can not be improved in a targeted manner according to the training effect.

In order to solve the above problems, an aspect of the embodiments of the present application provides a male dilatation catheter medication operation training device for training medication operation on a urethral stricture part and accurately displaying a training result of the medication operation, as shown in fig. 4 to 6, comprising atraining catheter 5, a male urethra-bladder model, a urethra-stricture simulation part 2, a detection display module and a housing, wherein andilatation balloon 54 is disposed at a top end of a head of thetraining catheter 5, the male urethra-bladder model comprises abladder simulation part 11 and aurethra simulation part 12, wherein thebladder simulation part 11 is a hollow cavity simulating a bladder shape, theurethra simulation part 12 is a hollow tubular channel simulating a urethra shape, one end of theurethra simulation part 12 is communicated with thebladder simulation part 11, the other end is communicated with an external space, the detection display module is used for detecting and displaying the training result of the medication operation, the shell comprises ashell body 31 and acover plate 32 which are detachably connected, and the male urethra-bladder model and the urethra-stenosis simulation part 2 are fixedly arranged in the shell;

thedilatation balloon 54 comprises afixing ring 541 sleeved on the head top end of thetraining catheter 5 and anexpandable dilatation part 542, wherein thedilatation part 542 is provided with anapplication part 544, theapplication part 544 is an inward annular recess, and the outer surface of theapplication part 544 is coated with acontact coating 545;

theurethra simulation part 12 further comprises anexpansion channel 13 corresponding to the urethrastricture simulation part 2, and theexpansion channel 13 forms an opening on the tube wall of theurethra simulation part 12;

the urethralstricture simulation part 2 comprisestelescopic parts 20 oppositely arranged at two sides of the urethralstricture simulation part 12, thetelescopic parts 20 comprise asimulation head 21 with a shape simulating the protruding intima tissue of the urethral stricture, aresettable damper 22, a fixingpart 23 and acontact sensing module 24, thecontact sensing module 24 is fixedly arranged at the end part of thesimulation head 21, thecontact sensing module 24 is electrically connected with the detection display module, and the acquired contact information with thecontact coating 545 is sent to the detection display module.

Specifically, fig. 4 is a cross-sectional view of the end of thetraining catheter 5 according to the embodiment of the present application placed inside the body, as shown in fig. 4, and the outer surface of theapplication portion 544 of thedilatation balloon 54 is coated with acontact coating 545. The appliedcontact coating 545 has specific properties that are different from the exterior surface of thedilation balloon 54 and can be sensed by the correspondingcontact sensing module 24 to enable location detection of specific areas on thedilation balloon 54. The other components and structural relationship of theurinary training catheter 5 are the same as those of the existing narrow dilating catheters, and are not described in detail herein.

FIG. 5 is a top view of the internal structure of the male dilatation catheter application training device provided by the embodiment of the present application (thetraining catheter 5 is not shown in the figure), wherein thecover plate 32 is placed in the opposite direction to the actual installation direction for the sake of clarity; fig. 6 is an exploded view of an assembly of an exercise device for use in applying medication to a male dilatation catheter according to an embodiment of the present application (theexercise catheter 5 is not shown in the figure).

Specifically, in the embodiment of the present application, theshell 31 and thecover plate 32 are detachably and fixedly connected by means of a screw and a nut which are matched with each other or a buckle and a slot which are matched with each other, so as to fixedly mount the male urethra-bladder model and the urethralstricture simulation part 2 therein.

Specifically, theurethral simulator 12 has anexpansion channel 13 corresponding to theurethral stricture simulator 2, and theexpansion channel 13 intersects theurethral simulator 12 in the direction thereof, and has openings facing each other in the wall of theurethral simulator 12.

Specifically, as shown in the assembled top view of the urethralstricture simulation section 2 of fig. 7, the urethralstricture simulation section 2 includes theextensible sections 20 oppositely disposed on both sides of the urethralstricture simulation section 12, theextensible sections 20 include thesimulation head 21 whose shape simulates the intima tissue protruding from the urethral stricture section, theresettable damper 22, the fixingsection 23 and thecontact sensing module 24, and thecontact sensing module 24 is fixedly disposed at the end of thesimulation head 21 by means of gluing, drilling, or the like.

Further, thecontact sensing module 24 is a sensing probe capable of sensing thecontact coating 545 applied to the outer surface of thedrug application portion 544, for example, a sensing probe capable of sensing a conductor or a sensing probe capable of sensing a magnetic field, and thecontact sensing module 24 is electrically connected to the detection display module and transmits the acquired contact information with thecontact coating 545 to the detection display module.

In the specific implementation manner of the embodiment of the present application, the number of thecontact sensing modules 24 may be 1, and the contact sensing modules are disposed at the end of any one of the simulation heads 21; or two, placed at the end of two dummy heads 21.

In a preferred embodiment of the present embodiment, theinflatable balloon 54 is made of a non-conductive elastic polymer material with tension, thecontact coating 545 is a conductive coating, thecontact sensing module 24 includes electrodes and a current limiting resistor that are not connected to each other, and the contact information is current information. Specifically, the conductive coating layer may be formed by mixing conductive metal powder in a paint having ductility and then coating the mixture on the outer surface of themedicine applying portion 544, or may be formed by cutting a filter having conductivity into a strip having a width matching the width of themedicine applying portion 544 and attaching the cut strip to the outer surface of themedicine applying portion 544, and thecontact sensing module 24 includes an electrode and a current limiting resistor which are not connected to each other, and when a voltage is applied to the electrode which is not connected to each other, the contact information indicates the presence or absence of current according to whether thecontact coating layer 545 is in contact with the electrode.

In another preferred embodiment of the present embodiment, thedilatation balloon 54 is made of a non-magnetically permeable elastic polymer material with tension, thecontact coating 545 is a magnetically permeable coating, thecontact sensing module 24 is a magnetic induction sensor, and the contact information is magnetic field information. Specifically, the magnetic conductive layer can be formed by mixing magnetic powder in a paint with ductility and then coating the magnetic powder on the outer surface of themedicine applying portion 544, thecontact sensing module 24 is a magnetic induction sensor, the change of the positions of thecontact coating 545 and thecontact sensing module 24 causes the strength of a magnetic field where the magnetic induction sensor is located to change, the resistance value of the magnetic induction resistor correspondingly applies voltage to the two ends of the magnetic induction resistor, the resistance value of the magnetic induction resistor inside the magnetic induction sensor also changes accordingly, when voltage is applied to the two ends of the magnetic induction resistor, the current passing through the magnetic induction resistor also changes correspondingly, namely, the size of the magnetic field sensed by the magnetic induction sensor changes, and at the moment, the contact information is the magnetic field information acquired by the magnetic induction sensor.

Further, as shown in the assembled exploded view of thetelescopic portion 20 in fig. 8, theresettable damper 22 includes aresettable piston rod 221 and asleeve 222 covering thepiston rod 221, wherein an end of thepiston rod 221 is fixedly connected to thesimulator head 21, and can drive thesimulator head 21 to perform resettable reciprocating motion along theexpansion channel 13 in a damping motion manner; theresettable damper 22 is fixedly mounted within the fixedportion 23.

Specifically, theresettable damper 22 is a component for damping movement by utilizing viscosity of gas or liquid, the cylinder in thesleeve 222 is sealed with gas or damping liquid and is provided with a component for resetting, such as a spring (not shown in the figure), one end of thepiston rod 221 is arranged in thesleeve 222 and connected with the resetting component, the other end of the piston rod is exposed out of thesleeve 222, and performs damping movement towards thesleeve 222 when receiving a pressing force, and the piston rod is reset slowly under the action of the resetting component when the pressing force disappears.

In a specific implementation manner of the embodiment of the present application, the axis of theexpansion channel 13 is perpendicular to the axis of theurethral simulator 12, the connecting line of the twoexpansion parts 20 oppositely disposed at both sides of theurethral simulator 12 is perpendicular to the axis of theurethral simulator 12, and the movement direction of theresettable damper 22 is perpendicular to the axis direction of theurethral simulator 12.

In a specific implementation manner of the embodiment of the present application, the distance between the two expansion/contraction parts 20 oppositely disposed at both sides of the urethral simulator is set as follows: when theresettable damper 22 is not under compression, themock head 21 is positioned within theexpansion channel 13.

Preferably, in the embodiment of the present application, thebladder simulation part 11 includes afirst half cavity 111 and asecond half cavity 112 which are mirror symmetric, the contact surfaces of thefirst half cavity 111 and thesecond half cavity 112 are the same, and the completebladder simulation part 11 is formed after buckling; theurethra simulation part 12 comprises a firstsemi-tubular channel 121 and a secondsemi-tubular channel 122 which are mirror-symmetrical, the contact surface shapes of the firstsemi-tubular channel 121 and the secondsemi-tubular channel 122 are the same, theurethra simulation part 12 is formed completely after buckling, and theexpansion channel 13 is formed automatically after the firstsemi-tubular channel 121 and the secondsemi-tubular channel 122 are buckled. Thebladder simulation part 11 and theurethra simulation part 12 are designed to be split, so that the complexity and the cost of a die can be greatly reduced, the production difficulty is reduced, and the production efficiency is improved.

Preferably, in the embodiment of the present application, the first half-cavity 111 and the first half-tubular passage 121 are made integrally with thehousing 31; the second half-cavity 112 and the second half-tubular passage 122 are made integral with thecover plate 32; the fixingportion 23 is detachably fixed to thehousing 31. By integrally forming thebladder simulation part 11 and theurethra simulation part 12 with theshell 31 and thecover plate 32, the production process and the assembly process are further simplified, and the later installation and fixation are facilitated.

Preferably, thecover plate 32 is made of a transparent material. In the embodiment of the application, thecover plate 32 can be made of transparent materials such as acrylic, plastic or toughened glass, and thecover plate 32 is arranged to be transparent so that the catheterization operation can be clearly observed, and the operation training effect can be conveniently evaluated.

Further, as shown in the connection block diagram of the detection display module of fig. 9, the detection display module includes acontrol submodule 41, apower submodule 42 and adisplay submodule 43, thepower submodule 42 is electrically connected with the control submodule 41 and thedisplay submodule 43 to supply power to thecontrol submodule 41, thecontact sensing module 24 and thedisplay submodule 43, thecontrol submodule 41 receives contact information sent by thecontact sensing module 24, judges whether thecontact coating 545 contacts thecontact sensing module 24 according to a preset judgment rule, and sends an instruction for displaying a training result of an application operation to thedisplay submodule 43, the control submodule 41 and thepower submodule 42 are packaged on thecircuit substrate 40, and thedisplay submodule 43 is fixedly mounted on the outer side of thecover plate 32.

Specifically, thepower supply sub-module 42 may be a dry battery, a rechargeable battery module with a charging interface, or a wireless charging module, and thedisplay sub-module 43 may be a seven-segment digital tube module, a liquid crystal display module, or the like.

The following describes in detail the flow of detecting and displaying the training result of the drug administration operation by the detection display module according to the embodiment of the present application with reference to fig. 10 to 12.

Figure 10 shows a schematic view of the head of thetraining catheter 5 approaching and contacting the urethralstricture simulation section 2 when a significant resistance is felt in the forward advancement, i.e. encountering the stricture in the urethra. The position of thetraining catheter 5 is moved back and forth and adjusted so that theapplication portion 544 is aligned with thecontact sensing module 24 on themock head 21, and then theexpansion portion 542 is expanded through theair passage 543, and as theexpansion portion 542 expands, theapplication portion 544 will expand and thecontact coating 545 applied to the outside thereof will contact themock head 21. Depending on the forward and backward movement position of the head of the trainingurinary catheter 5, there are two possibilities of alignment and misalignment between thecontact coating 545 and thecontact sensing module 24 on themock head 21, fig. 11 is a schematic view of misalignment between thecontact coating 545 and thecontact sensing module 24, and fig. 12 is a schematic view of alignment between thecontact coating 545 and the sensing module.

In a preferred embodiment of this embodiment, thecontact coating 545 is a conductive coating, thecontact sensing module 24 includes an electrode and a current limiting resistor that are not connected to each other, and the predetermined determination rule is that there is a conduction current inside thecontact sensing module 24.

Specifically, when thecontact coating 545 is not in contact with and is connected to the electrodes of thecontact sensing module 24, no conduction current exists in thecontact sensing module 24, and thecontrol submodule 41 determines, according to a preset determination rule, that thecontact coating 545 is not in contact with thecontact sensing module 24; when thecontact coating 545 is aligned with thecontact sensing module 24 to conduct the electrodes of the basic sensing module, a conduction current exists in thecontact sensing module 24, and thecontrol sub-module 41 determines that thecontact coating 545 is in contact with thecontact sensing module 24 according to a preset determination rule.

In another preferred embodiment of this embodiment, thecontact coating 545 is a magnetic conductive coating, thecontact sensing module 24 is a magnetic induction sensor, and the predetermined determination rule is that the magnetic field induced by thecontact sensing module 24 is greater than a predetermined threshold.

Specifically, when thecontact coating 545 is not aligned with thecontact sensing module 24, the magnetic field induced by thecontact sensing module 24 is smaller than a preset threshold, and thecontrol submodule 41 determines that thecontact coating 545 is not in contact with thecontact sensing module 24 according to a preset determination rule; when thecontact coating 545 is aligned with thecontact sensing module 24, the magnetic field induced by thecontact sensing module 24 is greater than a predetermined value, and thecontrol sub-module 41 determines that thecontact coating 545 is in contact with thecontact sensing module 24 according to a predetermined determination rule.

In the embodiment of the application, theurinary catheter 5 for training comprises anexpansion balloon 54 and adrug applying part 544 arranged on theexpansion balloon 54, thedrug applying part 544 is coated with acontact coating 545 for generating contact information, asimulation head 21 of the urethralstricture simulation part 2 is correspondingly provided with a sensing module, and thecontact coating 545 and the sensing module are arranged to perform the operations of expansion and drug application of the urethral stricture part in a targeted manner, so that the operation training of the stricture expansion urinary catheter is closer to the actual use condition; the detection display unit judges whether the medicine application operation is carried out at the correct position or not through the contact information, can accurately display the medicine application operation result, and can accurately evaluate the training effect according to the operation result.

Another aspect of embodiments of the present application provides a method for using the male dilatation catheter application training device, comprising the steps of:

the first step is as follows: placing saidtraining catheter 5 into saidurethral simulator 12;

the second step is that: when the resistance of the urethralstricture simulation part 2 is sensed in the process of implantation, the position of thetraining catheter 5 is adjusted back and forth to make themedicine applying part 544 aligned with thecontact sensing module 24;

the third step: training the administration operation by expanding thedilation balloon 54;

the fourth step: the detection display module acquires the contact information and displays the medicine application operation training result on thedisplay submodule 43;

the fifth step: and evaluating the training effect of the pesticide applying operation according to the training result of the pesticide applying operation.

While the present invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope thereof as defined in the appended claims.

Claims (10)

1. The utility model provides a male dilatation type catheter operation trainer of giving medicine to, be used for training to carry out the operation of giving medicine to the urethra stenosis portion, and the training result of operation of giving medicine to is shown to the accuracy, including training with catheter, male urethra bladder model, urethra stenosis emulation portion, detection display module and shell, training is with catheter head top end and is equipped with the expansion sacculus, male urethra bladder model is including simulation bladder portion and urethra simulation portion, urethra simulation portion one end with bladder simulation portion intercommunication, the other end communicates with the exterior space, detection display module is used for detecting and show the operation training result of giving medicine to the poor free of charge, the shell includes detachably connected casing and apron, male urethra bladder model and urethra stenosis emulation portion fixed mounting are in inside the shell, its characterized in that:

the expansion balloon comprises a fixing part sleeved at the top end of the head part of the training catheter and an expandable expansion part, the expansion part is provided with a medicine applying part, the medicine applying part is an inward annular recess, and the outer surface of the medicine applying part is coated with a contact coating;

the urethra simulation part also comprises an expansion channel corresponding to the urethra stenosis simulation part, and the expansion channel forms an opening on the tube wall of the urethra simulation part;

urethral stricture emulation portion including the subtend set up in the pars contractilis of urethra analog portion both sides, pars contractilis including simulation head, the attenuator that can reset, fixed part and the contact response module of the protruding inner membrane tissue of shape imitation urethra stricture portion, the contact response module fixed set up in simulation head tip, the contact response module with detect the display module electricity and be connected, will acquire with the contact information transmission of contact coating arrives detect the display module.

2. The male dilatation catheter application training device of claim 1 wherein:

the expansion sacculus is made of elastic high polymer materials which do not have conductivity and have tension, the contact coating is a conductive coating, the contact sensing module comprises electrodes and a current-limiting resistor which are not mutually communicated, and the contact information is current information.

3. The male dilatation catheter application training device of claim 1 wherein:

the expansion sacculus is made by the elasticity macromolecular material that does not possess magnetism and have tension, the contact coating is the magnetic conduction coating, the contact response module is magnetic induction sensor, the contact information is magnetic field information.

4. The male dilatation catheter application training device of claim 1 wherein:

the resettable damper comprises a resettable piston rod and a sleeve wrapping the piston rod, wherein the end part of the piston rod is fixedly connected with the simulation head and can drive the simulation head to perform resettable reciprocating motion along the expansion channel in a damping motion mode;

the resettable damper is fixedly mounted inside the fixing portion.

5. The male dilatation catheter application training device of claim 1 wherein:

the detection display module comprises a control submodule, a power supply submodule and a display submodule, wherein the power supply submodule is electrically connected with the control submodule and the display submodule and supplies power to the control submodule, the contact induction module and the display submodule, the control submodule receives contact information sent by the contact induction module, judges whether the contact coating is in contact with the contact induction module according to a preset judgment rule and sends an instruction for displaying an application medicine operation training result to the display submodule, the control submodule and the power supply submodule are packaged on a circuit substrate, and the display submodule is fixedly installed on the outer side of the cover plate.

6. The male dilatation catheter application training device of claim 5 wherein:

the preset judgment rule is that conduction current exists in the contact induction module.

7. The male dilatation catheter application training device of claim 5 wherein:

the preset judgment rule is that the magnetic field induced by the contact induction module is larger than a preset threshold value.

8. The training device for applying a drug to a male dilatation catheter of any one of claims 1 to 7, wherein:

the bladder simulation part comprises a first half cavity and a second half cavity which are in mirror symmetry, the contact surfaces of the first half cavity and the second half cavity are the same in shape, the first half cavity and the second half cavity are buckled to form the complete bladder simulation part, and the first half cavity and the first half tubular channel are integrally formed with the shell;

the urethra simulation part comprises a first semi-tubular channel and a second semi-tubular channel which are in mirror symmetry, the contact surfaces of the first semi-tubular channel and the second semi-tubular channel are the same in shape, the first semi-tubular channel and the second semi-tubular channel are buckled to form the complete urethra simulation part, and the second semi-cavity, the second semi-tubular channel and the cover plate are integrally formed;

the fixing part and the circuit substrate are detachably mounted on the shell.

9. The male dilatation catheter application training device of claim 8 wherein:

the cover plate is made of a transparent material.

10. A method of administering an operation training device using a male dilatation catheter according to any of the claims 5-9, characterized in that the training method comprises the steps of:

placing said training catheter into said urethral simulator;

when the resistance of the urethral stricture simulation part is sensed in the process of implantation, the position of the catheter for training is adjusted forwards and backwards to enable the medicine applying part to be aligned with the contact sensing module;

performing a drug application operation training by expanding the dilation balloon;

the detection display module acquires the contact information and displays an application operation training result on the display submodule;

and evaluating the training effect of the pesticide applying operation according to the training result of the pesticide applying operation.

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