CN114522290A

CN114522290A - Bladder washing unit of high security

Info

Publication number: CN114522290A
Application number: CN202210190591.8A
Authority: CN
Inventors: 周敏; 张静; 刘芳英; 陶雪梅; 何亚男; 谢小丽; 吴红梅; 王夏韵
Original assignee: Sichuan Peoples Hospital of Sichuan Academy of Medical Sciences
Current assignee: Sichuan Peoples Hospital of Sichuan Academy of Medical Sciences
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-05-24
Anticipated expiration: 2042-02-28
Also published as: CN114522290B

Abstract

The invention belongs to the field of medical instruments, and particularly relates to a high-safety bladder irrigation device which comprises a cylinder body and a plurality of ports connected with one end of the cylinder body, wherein the ports are selectively communicated with the inside of the cylinder body; the other ends of the plurality of ports are in fluid-transmissible communication with a plurality of medical devices and/or the bladder; wherein the pressure switching device is configured to control the volume of irrigation solution delivered to the interior of the bladder, thereby controlling the pressure within the bladder. By adopting the scheme, the bladder irrigation efficiency is greatly improved, and the bladder irrigation safety is also greatly improved.

Description

Bladder washing unit of high security

Technical Field

The invention belongs to the field of medical instruments, and particularly relates to a high-safety bladder irrigation device.

Background

The bladder irrigation is a commonly used nursing technology in urinary surgery, and refers to a method for injecting liquid medicine, normal saline and other solutions into the bladder and then draining the liquid medicine and the normal saline to the outside, and the technology is suitable for patients with long-term indwelling catheters, patients after transurethral prostatectomy and patients with bladder tumor partial cystectomy. The purpose is mainly as follows: for the patient with the indwelling catheter, the urine drainage is kept smooth; removing foreign matters such as blood clots, mucus, bacteria and the like in the bladder, and preventing infection; treating some bladder diseases, such as cystitis and bladder tumor.

In practice, bladder irrigation devices are commonly used for nursing procedures. Flushing the bladder with a bladder flushing device typically includes the following steps:

1. placing the tip of the bladder irrigation device into a container containing irrigation solution, operating the bladder irrigation device to move a piston, and pumping the irrigation solution into the bladder irrigation device;

2. connecting the tip of the bladder irrigation device with the tail end of a catheter or a cystostomy catheter;

3. operating the bladder irrigation device to move, slowly delivering the solution in the bladder irrigation device to the bladder, and irrigating the bladder;

4. subsequently, the flushed mixed solution (including blood clots, debris, purulent material and/or body tissue, etc.) is withdrawn from the bladder using the bladder irrigation device;

5. pouring the mixed solution in the bladder irrigation device into a waste collection container, putting the tip of the bladder irrigation device into the container containing the irrigation solution, and repeating the steps until the extracted mixed solution becomes light pink or clear solution;

the existing bladder irrigation device is complex in operation process, and medical workers need to continuously extract or discharge liquid from different containers and bladders in the process of operating the bladder irrigation device, so that time and labor are wasted. Moreover, medical staff need to judge the state of the mixed solution while operating, however, the existing judgment standard of the mixed solution after flushing is not uniform, and the judgment is usually carried out according to the personal clinical experience of the medical staff, so that the experience is strong, and the misjudgment is easily caused to cause medical accidents. Secondly, current bladder irrigation equipment can not control solution flow or pressure, needs to rely on medical personnel experience to confirm, can't accomplish accurate control, causes the patient to be uncomfortable easily, also has great safety risk. In view of the above, there is a need for a bladder irrigation device that solves the above problems.

It should be noted that the above-mentioned prior art is only provided for convenience of describing the content of the present invention, and is not considered as the prior art constituting the technical solution disclosed in the present invention.

Disclosure of Invention

In order to solve the problems in the prior art, the invention aims to provide a high-safety bladder irrigation device which is simple and convenient to operate, can simplify the operation process of medical personnel, can assist the medical personnel to control the volume of the delivered irrigation solution to control the internal pressure of the bladder and improve the safety in use.

In order to achieve the above purpose, the invention provides the following technical scheme:

a high-safety bladder irrigation device comprises a pressure switching device, wherein the pressure switching device comprises a cylinder body, a controller and a first detection device electrically connected with the controller, one end of the cylinder body is connected with a plurality of ports, and the ports are selectively communicated with the interior of the cylinder body; wherein at least one of the ports is in communication with the bladder of the patient.

Preferably, a first piston is arranged in the cylinder, the first piston is connected with a driving interface through a piston rod, the driving interface is connected with a driving device, and the controller controls the driving device to act so as to drive the first piston to reciprocate in the cylinder.

Preferably, the first detection device is used for detecting the flow and/or pressure of the flushing solution delivered into the bladder and outputting a detected first signal to the controller, and the controller further controls the flow and/or pressure of the flushing solution delivered into the bladder by the barrel according to the first signal and/or controls a first display device to display the currently detected flow and/or pressure.

Preferably, the first detection means comprises flow detection means and/or pressure detection means; the controller firstly controls the driving device to act at a first larger speed to push the first piston to move so as to inject the flushing solution in the cylinder into the bladder; when the first detection means detects that a predetermined amount of irrigation solution has been injected and/or a predetermined reference pressure has been reached, the controller controls the drive means to move the first piston at a second speed lower than the first speed in dependence on the received first signal, thereby further controlling the flow and/or pressure of the irrigation solution injected into the bladder and thereby controlling the pressure inside the bladder.

Preferably, an actuating device is arranged in the cylinder body, the actuating device is provided with a selection part and a driving part, the selection part is of a substantially circular plate-shaped structure, a through selection hole is formed in the selection part along the axial direction, and the selection hole is matched with the ports for use, so that the ports are selectively communicated with the inside of the cylinder body; wherein the driving part drives the selection part to rotate.

Preferably, the driving part includes a second piston, an iron core, a coil, a base, and a housing; the base is fixedly arranged in the shell, the coil is arranged between the base and the shell, the iron core is arranged on the inner periphery of the base, one end of the second piston is in transmission connection with the iron core, and the other end of the second piston is in transmission connection with the selection part; when the coil is electrified, the iron core in the driving part drives the second piston to do reciprocating motion along the axial direction, and further drives the selection part to rotate; a toothed groove is formed in the outer peripheral surface of the second piston; a driving pin is arranged on the inner surface of the base and is inserted into the tooth-shaped groove; the bevel edges of two adjacent teeth in the tooth-shaped grooves are arranged in a mutually non-parallel angle, and the top of one tooth in the tooth-shaped grooves is staggered with the bottom edge of the opposite tooth-shaped groove.

Preferably, an actuating device is arranged in the cylinder, and the actuating device comprises a second piston and an iron core; the second piston is rotatably connected with the cylinder, a through selection hole is formed in the second piston in the axial direction, and the selection hole is matched with the ports for use, so that the ports are selectively communicated with the inside of the cylinder; the iron core is arranged on the periphery of the second piston, a coil is arranged between the iron core and the cylinder, and a cover plate is arranged between the actuating device and the cylinder and used for sealing the coil and/or the iron core; the outer peripheral surface of the second piston is provided with a tooth-shaped groove which is matched with the tooth-shaped groove, and the inner surface of the iron core is provided with a driving pin which is inserted into the tooth-shaped groove; the bevel edges of two adjacent teeth in the tooth-shaped grooves are arranged in a mutually non-parallel angle, and the top of one tooth in the tooth-shaped grooves is staggered with the bottom edge of the opposite tooth-shaped groove.

Preferably, the controller continuously controls the current which generates the direction change on the coil or continuously controls the on-off of the current in the coil so as to enable the second piston to rotate by a preset angle to enable the plurality of ports to be selectively communicated with the interior of the cylinder.

Preferably, the bladder irrigation device further comprises a number of medical devices, the other ends of the number of ports being in fluid transmissible communication with a number of medical devices and/or the bladder.

Preferably, three of the ports are provided on the barrel, wherein a first port is connected to a first medical device through a first catheter; the second port is connected with the bladder through a second catheter; the third port is connected with a second medical device through a third catheter; wherein the first medical device is used for containing a flushing solution to be pumped; the second medical device is used for collecting the mixed solution after being washed.

Preferably, an even number of said ports are provided on said barrel, said ports having catheters connected thereto, said catheters communicating with said medical device and with the bladder in an alternating manner.

Preferably, a second detection device is arranged on the third catheter, the second detection device is electrically connected with the controller, the second detection device is used for detecting the state of the mixed solution and outputting a detected second signal to the controller, and the controller controls whether the bladder irrigation device continues to work or not according to the second signal and/or controls a second display device to display the currently detected second signal.

Compared with the prior art, the invention has the following beneficial technical effects:

(1) the bladder irrigation device is provided with the pressure switching device, the pressure switching device can detect the flow and/or pressure of irrigation solution conveyed into the bladder, and the bladder irrigation device is controlled to work according to the detection result, so that the pressure inside the bladder can be controlled in time. When the operation of medical personnel has been simplified, the injection volume of the flush fluid of accurate control can improve bladder irrigation efficiency, prevents that the patient is uncomfortable, has improved the security of operation by a wide margin.

(2) The second detection device is arranged for detecting the blood concentration or the concentration of the pus cells in the flushed mixed solution, the detected blood concentration or the concentration of the pus cells is compared with the preset reference blood concentration or the preset reference concentration of the pus cells, the composition of the flushed mixed solution is inspected from the dimensions of the blood concentration, the concentration of the pus cells and the like, comprehensive judgment is formed, whether bladder flushing is in place or not is accurately judged, and medical staff are assisted to judge whether follow-up treatment is needed or not. Meanwhile, the cost of the second detection device can be reduced by determining the blood concentration in the form of the amount of light remaining after a predetermined amount of light is transmitted through the mixed solution in the catheter, and the cost of the bladder irrigation device can be further reduced.

(3) The bladder irrigation device is simple in structure and reliable, the ports are selectively communicated with a plurality of medical devices and/or bladders and/or catheters through the actuating device, specifically, the rotating angle of the actuating device is precisely controlled through the controller, and on the basis, the ports are matched with a plurality of the arranged ports to automatically extract or inject liquid from different containers and bladders, so that the operation of medical personnel is simplified, the irrigation time is saved, the irrigation efficiency is improved, and the stable control of the whole irrigation process is realized.

(4) On the basis of the embodiment, the axial length can be reduced by the other embodiment provided by the invention, so that the structure of the bladder irrigation device is more compact, the occupied space of the device is effectively saved, and the whole device is miniaturized.

(5) In the preferred embodiment provided by the invention, a second medical device for containing the mixed solution after flushing is omitted, so that the mixed solution after flushing cannot appear in the barrel, the cleanness of the interior of the barrel is ensured, and the flushing effect is improved.

(6) In a preferred embodiment provided by the invention, an even number of ports are provided, said ports communicating with the medical device and the bladder and/or the catheter in an alternating manner. On the one hand, the time between port switching is shortened; on the other hand, the bladder irrigation device can be connected with a plurality of medical devices, so that the irrigation solution in another medical device can be supplemented when one medical device works, the bladder irrigation device can be continuously used, and the irrigation efficiency is improved.

Description of the drawings:

FIG. 1 is a schematic view of a first embodiment of the bladder irrigation device of the present invention;

FIG. 2 is a schematic view of a barrel in the bladder irrigation device;

FIG. 3 is a schematic structural diagram of a pressure switching device;

FIG. 4 is a schematic view of an actuating device in the bladder irrigation device;

FIG. 5 is a schematic view of the actuator after deployment of the toothed slot;

FIG. 6 is a schematic view of one of the drive connections of the select portion of the actuator;

FIG. 7 is a schematic illustration of one of the drive connections of the piston in the actuator;

FIG. 8 is a schematic view of a second embodiment of the bladder irrigation device of the present invention;

FIG. 9 is a schematic view of a third embodiment of the bladder irrigation device of the present invention;

FIG. 10 is a schematic view of a fourth embodiment of the bladder irrigation device of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments.

Thus, the following detailed description of the embodiments of the invention is not intended to limit the scope of the invention as claimed, but is merely representative of some embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the embodiments of the present invention and the features and technical solutions thereof may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like refer to orientations or positional relationships based on those shown in the drawings, or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and such terms are used for convenience of description and simplification of the description, and do not refer to or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

1-2, a high safety bladder irrigation device of the present invention is provided with a pressure switching device for controlling the volume of irrigation solution delivered to the interior of the bladder and thus the pressure within the bladder.

The pressure switching device comprises a cylinder body 13, wherein one end of the cylinder body 13 is connected with a plurality of ports 131, and the ports 131 are selectively communicated with the inside of the cylinder body 13; the other end of the number of ports 131 is in fluid-transmissible communication with a number of medical devices and/or the bladder.

In the embodiment of the present invention, three ports 131 are specifically provided, wherein a first port is connected to the first medical device 21 through the first catheter 2; the second port is connected with the bladder through a second catheter 3; the third port is connected to a second medical device 41 via a third catheter 4. Wherein the first medical device 21 is used for containing a flushing solution such as a medical liquid, a physiological saline solution to be extracted; the second medical device 41 is used for collecting the mixed solution after the rinsing.

Preferably, as shown in fig. 2-3, an actuating device is provided inside said cylinder 13, said actuating device 11 being adapted to selectively communicate said plurality of ports 131 with the interior of said cylinder 13; the first piston 12 is arranged inside the cylinder 13, the first piston 12 is connected with a driving interface 122 through a piston rod 121, the driving interface 122 is connected with a driving device 16 (not shown in the figure), and the driving device 16 is controlled to act so as to drive the first piston 12 to reciprocate in the cylinder 13, thereby realizing the delivery of the flushing solution into the bladder.

Referring to fig. 3, the pressure switching device further comprises a controller 5, and a first detecting device electrically connected to the controller 5, the first detecting device is disposed on the second catheter 3, the first detecting device is used for detecting the flow and/or pressure of the flushing solution delivered into the bladder and outputting a detected first signal to the controller 5, and the controller 5 further controls the flow and/or pressure of the flushing solution delivered into the bladder by the bladder flushing device according to the first signal and/or controls a first display device 33 to display the currently detected flow and/or pressure. Wherein the first detection means comprises a flow detection means 31 and/or a pressure detection means 32. The flow rate detecting device 31 and/or the pressure detecting device 32 may be detected by using existing sensors, and the type thereof is not limited in the present invention, and for example, the type may be selected from electronic, ultrasonic, mechanical, and the like, and will not be described herein again.

Preferably, the controller 5 controls the action of the driving device 16 according to the received first signal, and further controls the moving speed of the first piston 12, so as to control the flow rate and/or pressure of the flushing solution delivered to the inside of the bladder, and thus the pressure inside the bladder, as will be described later.

As previously mentioned, the bladder irrigation device of the present invention is capable of selectively placing the plurality of ports 131 in communication with the interior of the barrel 13, thereby accomplishing different steps in the irrigation process. Preferably, the present invention accomplishes the above operation using an actuating device as described below. As shown in fig. 2 to 4, the actuator 11 provided by the present invention includes a selection portion 111 and driving portions 112 to 115, wherein the selection portion 111 has a substantially circular plate-like structure, and a selection hole 111-1 is formed therethrough along an axial direction, and the selection hole 111-1 is used in cooperation with the ports 131, so that the ports 131 selectively communicate with the inside of the cylinder 13. The driving parts 112-115 are used for driving the selection part 111 to rotate so that the selection hole 111-1 is communicated with one of the ports 131. Preferably, the driving part includes a second piston 112, an iron core 114, a coil 115, a base 113, and a housing 116. Wherein the base 113 is fixedly disposed inside the housing 116, and the coil 115 is disposed between the base 113 and the housing 116. The iron core 114 is disposed on the inner periphery of the base 113, and one end of the second piston 112 is in transmission connection with the iron core 114, and the other end is in transmission connection with the selection portion 111. When the coil 115 is energized, the iron core 114 in the driving portion drives the second piston 112 to reciprocate along the axial direction, and further drives the selection portion 111 to rotate.

In order to drive the selection part 111 to rotate, as shown in fig. 4 to 5, a tooth-shaped groove 112-1 is provided on an outer circumferential surface of the second piston 112, and in cooperation therewith, a driving pin 113-1 is provided on an inner surface of the base 113, and the driving pin 113-1 is inserted into the tooth-shaped groove 112-1. In order to facilitate the above-mentioned operation, fig. 5 shows a schematic view of the tooth-shaped groove 112-1 of fig. 4 after being expanded in the circumferential direction. Referring to fig. 5, the driving pin 113-1 is fixed, and the iron core drives the second piston 112 to reciprocate along the axial direction, that is, the second piston 112 reciprocates along the direction of arrow 1 in fig. 5. In the process, for example, the iron core drives the second piston 112 to move in the forward direction first, and at this time, the driving pin 113-1 contacts with the oblique edge of one tooth in the tooth-shaped slot 112-1 first, and according to the force, the second piston 112 will receive a component force along the circumferential direction thereof, and the component force drives the second piston 112 to rotate by an angle, that is, in the direction of arrow 2 in the figure. At this time, the driving pin 113-1 is in contact with the bottom edge of the tooth-shaped groove 112-1. Subsequently, the iron core drives the second piston 112 to move in the opposite direction, and at this time, the driving pin 113-1 is contacted with the oblique edge of the opposite tooth after undergoing a section of idle stroke, and because the oblique edges of two adjacent teeth are at the angle shown in fig. 4, the second piston 112 will receive a circumferential component force in the same direction as the previous component force, and further rotate an angle in the direction of an arrow 2 in the figure. The above process is repeated, so as to drive the selection portion 111 to rotate along the circumferential direction. In order to smoothly perform the above-mentioned rotation process, as shown in fig. 5, the top of one tooth of the tooth-shaped grooves 112-1 should be offset from the bottom edge of the opposite tooth-shaped groove 112-1 by a distance D, so that the driving pin 113-1 just contacts the crest or the oblique side of the tooth-shaped groove 112-1 each time during the reciprocation of the second piston 112.

Further, to effect the reciprocating motion of the second piston 112. Controlling the coil 115 to generate a current in one direction (e.g., clockwise) by the controller 5, wherein a magnetic force is applied to the iron core 114, so that the iron core 114 moves in a forward direction and further drives the second piston 112 to move; subsequently, the controller 5 controls the coil 115 to generate a current in a direction opposite to the above direction (e.g., counterclockwise), so that the iron core 114 moves in the opposite direction, and further drives the second piston 112 to move. Therefore, when the direction of the current in the coil 115 is continuously controlled to be changed, the second piston 112 can be reciprocated in the axial direction. Of course, the present invention is not limited to the above embodiment, and a return spring may be disposed in the axial inner space of the second piston 112, and the controller 5 may continuously control the on/off of the current in the coil 115, and the second piston 112 may also reciprocate along the axial direction in cooperation with the return force of the return spring. It is clear to those skilled in the art that any driving method capable of realizing the reciprocating motion of the second piston 112 can be used as the driving method of the present invention.

Preferably, fig. 6 shows an embodiment of the present invention in which the second piston 112 is drivingly connected to the selection portion 111. A pin shaft 112-2 is arranged on the second piston 112, and a driving plane is arranged on the pin shaft 112-2; in contrast, a driving hole 111-2 is provided on the selection part 111, and the driving hole 111-2 is provided with a driven plane, thereby achieving efficient power transmission between the second piston 112 and the selection part 111. Fig. 7 shows an embodiment of the present invention in which the second piston 112 is drivingly connected to the plunger 114. A groove 112-3 is formed in the second piston 112, and a protrusion matching with the groove 112-3 is formed on the iron core 114, that is, a revolute pair is formed between the second piston 112 and the iron core 114, so that the second piston 112 and the iron core 114 are rotatably connected in a transmission manner.

Preferably, a fixing seat 15 is disposed in the cylinder, the actuating device 11 is sleeved in the fixing seat, a plurality of openings 151 corresponding to the plurality of ports 131 are formed in the fixing seat 15, and the plurality of ports 131 and the plurality of openings 151 are communicated or disconnected by the selecting portion 111 in the rotating process. An end cover 14 is arranged at the other end of the cylinder 13, and the piston rod 121 is movably connected with the end cover 14.

The following description will be made of the operation of the bladder irrigation device according to the first embodiment of the present invention:

first, the controller 5 controls the actuation device 11 to operate, so that the cylinder 13 is communicated with the first medical device 21, and the controller 5 controls the driving device 16 to operate to push the first piston 12 to move, so as to draw the flushing solution into the cylinder 13. After sufficient irrigation solution is pumped, the controller 5 controls the actuating device 11 to act to drive the selection part 111 to rotate in one direction by a predetermined angle, so that the cylinder 13 is communicated with the bladder. The controller 5 then controls the driving device 16 to move at a first speed to drive the first piston 12 to move, so as to inject the flushing solution in the cylinder 13 into the bladder, wherein the first detecting device detects the flow rate and/or pressure of the flushing solution delivered into the bladder in real time and outputs a detected first signal to the controller 5, and the controller 5 further controls the flow rate and/or pressure of the flushing solution delivered into the bladder by the bladder flushing device according to the first signal received in real time and also controls the first display device 33 to display the currently detected flow rate and/or pressure. In the above process, when the first detection device detects that the predetermined amount of the flushing solution has been injected and/or the predetermined reference pressure has been reached, which indicates that the bladder is filled with more flushing solution at this time, and the patient is likely to suffer discomfort by continuing to inject the flushing solution at a faster speed, the controller 5 controls the driving device 16 to push the first piston 12 to move at a second speed lower than the first speed according to the received first signal, so as to control the flow rate and/or pressure injected into the bladder, thereby assisting the medical staff in controlling the volume of the flushing solution injected into the bladder. After the washing is completed, the controller 5 controls the driving device 16 to move so as to push the first piston 12 to move, and the mixed solution after the washing is completed is pumped into the cylinder 13. After the extraction is completed, the controller 5 controls the actuating device 11 to act to drive the selection part 111 to rotate continuously for a predetermined angle, so that the cylinder 13 is communicated with the second medical device 41, and then the controller 5 controls the driving device 16 to act to push the first piston 12 to move, so as to inject the mixed liquid in the cylinder 13 to the second medical device 41. Repeating the steps until the mixed solution meets the preset conditions to complete the whole bladder irrigation process.

In the above embodiment, the first detection device is arranged to detect the flow and/or pressure of the irrigation solution delivered into the bladder, and the bladder irrigation device is controlled to operate according to the detection result, so that the pressure inside the bladder can be controlled in time. The operation of medical personnel is simplified, and simultaneously, the injection amount of flushing fluid can be accurately controlled, the bladder flushing efficiency is improved, and discomfort of patients is prevented.

In the actual operation process of bladder irrigation, medical staff usually judge whether the bladder is flushed in place according to the color of the mixed liquid after the bladder is flushed, and the method has the defects of strong subjectivity and large environmental influence (such as strong and weak light). In addition, the blood content in the mixed liquid flowing out of the bladder can only be roughly judged by adopting a visual observation mode, and meanwhile, the content of the pus cells in the mixed liquid can not be judged, so that the medical staff can not accurately judge the time for stopping flushing and can not perform the subsequent treatment procedures. In order to overcome the defects, the invention adopts the following technical scheme.

Referring to fig. 3, the present invention further provides a second detection device electrically connected to the controller 5, wherein the second detection device is used for detecting the state of the mixed solution so as to assist the medical staff to judge the bladder irrigation effect. Specifically, a second detection device is disposed on the third catheter 4, and is configured to detect a state of the mixed solution and output a detected second signal to the controller 5, and the controller 5 controls whether the bladder irrigation device continues to operate according to the second signal and/or controls a second display device 44 to display the currently detected second signal.

Preferably, the second detecting means comprises a color detecting means 42, and the color detecting means 42 is used for detecting the blood concentration in the mixed solution. In this embodiment, the color detection device 42 is disposed on the third conduit 4 and is used for detecting the residual light quantity after the light with the predetermined light quantity is transmitted through the mixed solution in the third conduit 4. It is understood that the smaller the amount of remaining light after passing through the mixed solution, the more light the blood in the mixed solution absorbs, and further the higher the blood concentration in the mixed solution, and vice versa. Therefore, in the present embodiment, first, a functional relationship between the amount of change in the predetermined reference light amount after the predetermined reference light amount is transmitted through the washed mixed solution and the blood concentration is constructed in advance, and the blood concentration in the mixed solution is determined based on the amount of change in the predetermined reference light amount detected by the color detection means 42. The controller 5 determines whether or not the blood concentration is lower than a preset reference blood concentration after receiving the second signal reflecting the blood concentration. After finishing the bladder irrigation process, the controller 5 judges that the blood concentration is lower than the preset reference blood concentration, and the controller 5 controls the bladder irrigation device to stop working, thereby completing the whole bladder irrigation process. On the contrary, when the controller 5 judges that the blood concentration is greater than the preset reference blood concentration, the controller 5 controls the bladder irrigation device to continue working and enter the next bladder irrigation process. Of course, those skilled in the art will appreciate that the blood concentration in the mixed solution can be detected in other ways, which are not described herein. It should be noted that, after the controller 5 receives the second signal, the second display device 44 is further controlled to display the currently detected second signal, that is, to display the blood concentration in the mixed solution after the current flushing, so that the medical staff can check the current flushing state at any time, and the subsequent operation of the medical staff is facilitated.

Preferably, the second detecting device further comprises a pus cell detecting device 43, the pus cell detecting device 43 is configured to detect a concentration of pus cells in the mixed solution and output a detected third signal to the controller 5, and the controller 5 controls the second display device 44 to display the currently detected third signal and/or a prompt signal and/or an alarm signal according to the third signal. In this embodiment, the concentration of the pus cells in the mixed solution is detected by the pus cell detection device 43, and the concentration of the pus cells is displayed on the second display device 44 to inform medical staff of the concentration of the pus cells in the mixed liquid discharged from the bladder of the patient, and a prompt signal and/or an alarm signal can be displayed at the same time. For example, when the detected concentration of the pus cells is greater than a preset reference concentration of the pus cells, the controller 5 controls the second display device 44 to display a prompt signal: "the concentration of the pus cells exceeds the standard, please verify whether the medicine needs to be added" to prompt the medical staff whether the medicine needs to be added to the first medical device 21; when the detected concentration of the pus cells is less than or equal to a preset reference concentration of the pus cells, the controller 5 controls the second display device 44 to display a prompt signal: the concentration of the pus cells is qualified in detection. Of course, the above prompt signal is only an example, and other prompt signals may be used to remind the medical staff of the current detection result and/or prompt the medical staff to perform related operations, for example, the medical staff may be reminded or prompted by displaying other words or by using a sound signal. Of course, the alarm signal may also be displayed in an audible and visual manner, for example, in a form of displaying a red light and a green light, to prompt the medical staff to perform corresponding operations according to the current detection result of the patient, which is not described herein again.

In the embodiment, the second detection device is arranged to detect the blood concentration and/or the concentration of the pus cells in the flushed mixed solution, the detected blood concentration or the concentration of the pus cells is compared with the preset reference blood concentration or reference concentration of the pus cells, the composition of the flushed mixed solution is inspected from dimensions such as the blood concentration and the concentration of the pus cells, comprehensive judgment is formed, whether bladder flushing is in place or not is accurately judged, and medical staff is assisted to judge whether follow-up treatment is needed or not. Meanwhile, the blood concentration is determined in the form of detecting the remaining amount of light after a predetermined amount of light is transmitted through the mixed solution in the catheter, whereby it is possible to reduce the cost of the second detection device and further reduce the cost of the bladder irrigation device.

Referring preferably to figure 8 of the drawings, a second embodiment of the actuating means of the present invention is shown. Wherein the actuating means comprises a second piston 112 'and a core 113'. The second piston 112 'is rotatably connected to the cylinder 13', and a selection hole 112'-2 is formed through the second piston 112' in an axial direction thereof, and the selection hole 112'-2 is used in cooperation with the plurality of ports 131', so that the plurality of ports 131 'selectively communicate with the inside of the cylinder 13'. The iron core 113' is disposed at the outer periphery of the second piston 112', a coil 115' is disposed between the iron core 113' and the cylinder 13', and a cover plate 116' is disposed between the actuating device and the cylinder 13' for enclosing the coil 115' and/or the iron core 113 '. The outer circumferential surface of the second piston 112' is provided with a toothed groove 112' -1, in cooperation therewith, a driving pin 113' -1 is provided on the inner surface of the iron core 113', the driving pin 113' -1 is inserted into the toothed groove 112' -1, and the coil 115' drives the iron core 113' to reciprocate in the axial direction of the second piston 112 '. And, the ports 131' are further provided with interfaces 131' -1 for cooperating with the catheter, thereby ensuring that the catheter can be stably and hermetically connected with the ports 131 '.

Here, the operation of the above-described actuator device will be described. Referring to fig. 5, in order to drive the second piston 112' to rotate, the coil 115' drives the iron core 113' to reciprocate along the axial direction of the second piston 112', i.e., the iron core 113' reciprocates along the direction of arrow 1 in fig. 5. In the process, for example, the iron core 113' first moves in the forward direction, and the driving pin 113' -1 first contacts the oblique edge of one tooth in the tooth-shaped slot 112' -1, and the second piston 112' receives a force component along the circumferential direction thereof according to the force, and the second piston 112' is rotated by an angle, i.e., in the direction of arrow 2 in the figure, under the driving of the force component. At this time, the driving pin 113'-1 is in contact with the bottom edge of the tooth-shaped groove 112' -1. Subsequently, the plunger 113' moves in the opposite direction, and the driving pin 113' -1 is in contact with the oblique side of the opposite tooth after undergoing a certain idle stroke, and because the oblique sides of two adjacent teeth are at the angle as shown in fig. 5, the second piston 112' will receive a component of force in the same direction as before, and further rotate by an angle in the direction of arrow 2 in the figure. The above process is repeated, thereby driving the second piston 112' to rotate along the circumferential direction. As described above, in order to smoothly perform the above-mentioned rotation process, as shown in fig. 5, the top of one tooth of the tooth-shaped groove 112' -1 should be staggered from the bottom edge of the facing tooth-shaped groove 112' -1 by a certain distance D, so that the driving pin 113' -1 just contacts the addendum or the oblique edge of the tooth-shaped groove 112' -1 each time during the reciprocation of the iron core 113 '.

Similarly, in order to achieve the reciprocating motion of the iron core 113'. Controlling the coil 115 'to generate a current in one direction (e.g., clockwise) by the controller 5, wherein a magnetic force is applied to the iron core 113' to move the iron core 113 'in a forward direction, so as to drive the driving pin 113' -1 to move in an axial direction; subsequently, the controller 5 controls the coil 115' to generate a current in a direction opposite to the above direction (e.g., counterclockwise), so that the iron core 113' moves in a reverse direction, thereby driving the driving pin 113' -1 to move in a reverse direction. Therefore, when the direction of the current in the coil 115 'is continuously controlled to be changed, the iron core 113' can be reciprocated in the axial direction. Certainly, the present invention is not limited to the above embodiment, and a return spring may be disposed in an axial inner space of the iron core 113', the controller 5 is used to continuously control the on/off of the current in the coil 115', and the iron core 113' may also reciprocate along the axial direction in cooperation with the return force of the return spring.

Compared with the mechanism in the first embodiment, the mechanism in the second embodiment can reduce the axial length, so that the structure of the bladder irrigation device is more compact, the occupied space of the device is effectively saved, and the whole device is miniaturized.

Figure 9 shows a third embodiment of the bladder irrigation device of the present invention. As shown in fig. 9, two ports 131 are disposed at one end of the cylinder 13 at an angle of approximately 180 °, and of course, the angle between the two ports can be set as required, which is not described herein. Wherein the first port is connected to a first medical device 21 via a first catheter 2; the second port is connected with the bladder through a second catheter 3, and the first detection device is arranged on the second catheter 3; the first medical device 21 is intended to contain a flushing solution, e.g. a medical liquid, physiological saline, to be withdrawn. Likewise, the selective communication of the two ports 131 with the interior of the cylinder 13 is achieved with the actuating means 11 as previously described. In the case of the bladder irrigation device shown in fig. 9, the second medical device 41 for collecting the mixed solution after irrigation is eliminated, and instead a urinary catheter (not shown) is provided to communicate with the patient's bladder, which can be switched on and off in a conventional manner (e.g., using a clamp). In use, the urinary catheter is first closed by means of a clamp or the like, the controller 5 controls the actuation of the actuating device 11 such that the cylinder 13 is in communication with the first medical device 21, and the controller controls the actuation of the driving device 16 to push the first piston 12 to move, so as to draw the flushing solution into the cylinder 13. After sufficient irrigation solution is pumped, the controller 5 controls the actuating device 11 to act to drive the selection part 111 to rotate in one direction by a predetermined angle, so that the cylinder 13 is communicated with the bladder. The controller 5 then controls the driving device 16 to move at a first speed to drive the first piston 12 to move, so as to inject the flushing solution in the cylinder 13 into the bladder, wherein the first detecting device detects the flow rate and/or pressure of the flushing solution delivered into the bladder in real time and outputs a detected first signal to the controller 5, and the controller 5 further controls the flow rate and/or pressure of the flushing solution delivered into the bladder by the bladder flushing device according to the first signal received in real time and also controls the first display device 33 to display the currently detected flow rate and/or pressure. In the above process, when the first detection device detects that the predetermined amount of the flushing solution has been injected and/or the predetermined reference pressure has been reached, which indicates that the bladder is filled with more flushing solution at this time, and the patient is likely to suffer discomfort by continuing to inject the flushing solution at a faster speed, the controller 5 controls the driving device 16 to push the first piston 12 to move at a second speed lower than the first speed according to the received first signal, so as to control the flow rate and/or pressure injected into the bladder, thereby assisting the medical staff in controlling the volume of the flushing solution injected into the bladder. After the washing is finished, opening the urine discharge pipe, so that the washed mixed solution naturally flows out of the urine discharge pipe; after the mixed solution in the bladder is flushed, the controller 5 controls the actuating device 11 to operate to communicate the cylinder 13 with the first medical device 21, and then the controller 5 controls the driving device 16 to operate to push the first piston 12 to move, so as to draw the flushing solution into the cylinder 13. Repeating the steps until the mixed solution is light pink or clear solution, so as to finish the whole bladder irrigation process. Due to the fact that the second medical device 41 is omitted, the bladder flushing device can ensure that mixed solution after flushing does not appear in the barrel 13, the interior of the barrel is clean, and the flushing effect is improved. Of course, the second detection device may be further disposed on the urinary catheter to detect the mixed solution, and the working process is similar to the above, and is not described herein again.

FIG. 10 shows a fourth embodiment of the bladder irrigation device of the present invention. Unlike the embodiment shown in fig. 9, four ports 131 are uniformly provided at one end of the cylinder 13, and the ports 131 alternately connect the first medical device 21 and the bladder through the first catheter 2 or the second catheter 3. Wherein, the other ends of the second catheters 3-1 and 3-2 connected with the ports are converged to form the catheter 3-3 and then communicated with the bladder, and the second detection device is arranged on the catheter 3-3. As in fig. 9, the second medical device 41 for collecting the mixed solution after flushing is eliminated, instead of providing a urinary catheter (not shown) in the patient's bladder, which can be switched on and off in the usual way (for example by a clamp). The operation process is similar to that of the bladder irrigation device shown in fig. 9, and the controller 5 alternately realizes the communication between the port 131 and the first medical device 21 and the bladder and controls the bladder irrigation device to draw the irrigation solution from the first medical device 21 and inject the irrigation solution into the bladder, which is not described in detail herein. Similarly, the second detection device may also be disposed on the urinary catheter to detect the mixed solution, and the working process is similar to the foregoing one, and is not described herein again.

In the fourth embodiment, since four ports 131 are provided, port switching can be completed only by rotating 90 °, shortening the time between port switching; due to the arrangement of the plurality of first medical devices 21, when one first medical device 21 works, the flushing solution in the other first medical device 21 can be supplemented, so that the continuous use of the bladder flushing device is ensured, and the flushing efficiency is improved.

Of course, it should be noted that the number of the ports 131 may be adjusted as required, but the number of the ports should be even, and the ports are connected to the first medical device 21 and the bladder alternately through the catheter.

The above embodiments are only used for illustrating the invention and not for limiting the technical solutions described in the invention, and although the present invention has been described in detail in the present specification with reference to the above embodiments, the present invention is not limited to the above embodiments, and therefore, any modification or equivalent replacement of the present invention is made; all such modifications and variations are intended to be included herein within the scope of this disclosure and the appended claims.

Claims

1. A bladder irrigation equipment of high security which characterized in that: the pressure switching device comprises a cylinder, a controller and a first detection device electrically connected with the controller, wherein one end of the cylinder is connected with a plurality of ports which are selectively communicated with the inside of the cylinder; wherein at least one of the ports is in communication with the bladder of the patient.

2. The high safety bladder irrigation device as recited in claim 1 wherein: the cylinder is internally provided with a first piston, the first piston is connected with a driving interface through a piston rod, the driving interface is connected with a driving device, and the controller controls the driving device to act so as to drive the first piston to do reciprocating motion in the cylinder.

3. The high safety bladder irrigation device as defined in claim 2, wherein: the first detection device is used for detecting the flow and/or pressure of the flushing solution delivered into the bladder and outputting a detected first signal to the controller, and the controller further controls the flow and/or pressure of the flushing solution delivered into the bladder by the barrel according to the first signal and/or controls a first display device to display the currently detected flow and/or pressure.

4. The high safety bladder irrigation device as defined in claim 3, wherein: the first detection device comprises a flow detection device and/or a pressure detection device; the controller firstly controls the driving device to act at a first larger speed to push the first piston to move so as to inject the flushing solution in the cylinder into the bladder; when the first detection means detects that a predetermined amount of irrigation solution has been injected and/or a predetermined reference pressure has been reached, the controller controls the drive means to move the first piston at a second speed lower than the first speed in dependence on the received first signal, thereby further controlling the flow and/or pressure of the irrigation solution injected into the bladder and thereby controlling the pressure inside the bladder.

5. The high safety bladder irrigation device as defined in any one of claims 1-4, wherein: the actuating device is arranged in the cylinder body and is provided with a selection part and a driving part, the selection part is of a roughly circular plate-shaped structure, a through selection hole is formed in the selection part along the axial direction, and the selection hole is matched with the ports for use, so that the ports are selectively communicated with the inside of the cylinder body; wherein the driving part drives the selection part to rotate.

6. The high safety bladder irrigation device as recited in claim 5, wherein: the driving part comprises a second piston, an iron core, a coil, a base and a shell; the base is fixedly arranged in the shell, the coil is arranged between the base and the shell, the iron core is arranged on the inner periphery of the base, one end of the second piston is in transmission connection with the iron core, and the other end of the second piston is in transmission connection with the selection part; when the coil is electrified, the iron core in the driving part drives the second piston to do reciprocating motion along the axial direction, and further drives the selection part to rotate; a toothed groove is formed in the outer peripheral surface of the second piston; a driving pin is arranged on the inner surface of the base and is inserted into the tooth-shaped groove; the bevel edges of two adjacent teeth in the tooth-shaped grooves are arranged in a mutually non-parallel angle, and the top of one tooth in the tooth-shaped grooves is staggered with the bottom edge of the opposite tooth-shaped groove.

7. The high safety bladder irrigation device as defined in any one of claims 1-4, wherein: an actuating device is arranged in the cylinder and comprises a second piston and an iron core; the second piston is rotatably connected with the cylinder, a through selection hole is formed in the second piston in the axial direction, and the selection hole is matched with the ports for use, so that the ports are selectively communicated with the inside of the cylinder; the iron core is arranged on the periphery of the second piston, a coil is arranged between the iron core and the cylinder, and a cover plate is arranged between the actuating device and the cylinder and used for sealing the coil and/or the iron core; the outer peripheral surface of the second piston is provided with a tooth-shaped groove which is matched with the tooth-shaped groove, and the inner surface of the iron core is provided with a driving pin which is inserted into the tooth-shaped groove; the bevel edges of two adjacent teeth in the tooth-shaped grooves are arranged in a mutually non-parallel angle, and the top of one tooth in the tooth-shaped grooves is staggered with the bottom edge of the opposite tooth-shaped groove.

8. The high safety bladder irrigation device as defined in claim 7, wherein: also included are a number of medical devices, the other ends of the number of ports in fluid transmissible communication with a number of medical devices and/or the bladder.

9. The high safety bladder irrigation device as recited in claim 8 wherein: the barrel is provided with three ports, wherein a first port is connected with a first medical device through a first catheter; the second port is connected with the bladder through a second catheter; the third port is connected with a second medical device through a third catheter; wherein the first medical device is used for containing a flushing solution to be pumped; the second medical device is used for collecting the mixed solution after being washed.

10. The high safety bladder irrigation device as recited in claim 8, wherein: an even number of the ports are provided on the barrel, with catheters connected thereto, the catheters being in communication with the medical device and the bladder in an alternating manner.