CN107440672A - A kind of electronics Flexible ureteroscope and its operating method with real-time pressure monitoring function - Google Patents

Abstract

The invention discloses an electronic flexible ureteroscope with real-time pressure monitoring function, which belongs to the field of endoscopic medical equipment, and comprises a mirror tube and an operation part connected with the mirror tube, and the mirror tube includes a The tip part, the tip part is provided with a camera module, the mirror tube is provided with a first channel and a second channel passing through the tip part, the first channel is inserted with an illumination beam, and the second channel An optical fiber pressure sensor for monitoring the pressure in the working area where the tip is located is installed inside. In addition, the invention also discloses an operation method of the electronic flexible ureteroscope with a real-time pressure monitoring function, and the pressure in the working area is adjusted in real time through automatic control and/or manual control. The invention has the advantages of being able to monitor the pressure change in the working area of the flexible ureteroscope accurately and in real time, and adjust the pressure in the working area in time to improve the safety and success rate of the operation.

Description

An electronic flexible ureteroscope with real-time pressure monitoring function and its operating method

【Technical field】

The invention relates to an electronic flexible ureteroscope with a real-time pressure monitoring function and an operating method thereof, belonging to the field of medical instruments, especially the field of endoscopic instruments.

【Background technique】

Electronic and fiber ureteroscopy for the treatment of ureteral calculi, especially electronic flexible ureteroscopy for the treatment of kidney stones has become an emerging technology and the future mainstream development direction of minimally invasive endoscopy in urology for the treatment of urolithiasis, and is currently the least surgical trauma for patients The minimally invasive stone removal surgery has been more and more recognized and accepted by doctors and patients, and has been widely used in developed countries in Europe and America, as well as in more developed areas of China.

During the operation, the flexible mirror guide sheath needs to be inserted first, and then the electronic flexible ureteroscope is sent into the guide sheath to carry out the flexible mirror surgery. In order to maintain a clear view during the operation, it is necessary to use a syringe, a pressurized saline bag, or an infusion pump to infuse the perfusion fluid into the surgical area through the instrument channel of the electronic flexible ureteroscope. After the flexible scope is inserted, the gap between the electronic flexible ureteroscope and the introducer sheath becomes a drainage channel for perfusate. Since the flexible mirror guide sheath is relatively long (usually 35cm/45cm) and relatively soft, it is easy to form multiple curved sections after retrograde sheath placement, and the electronic flexible ureteroscope passes through the curved section of the guide sheath, and it is very easy to form multi-segment blockages. As a result, the drainage is not smooth, and the internal pressure of the renal pelvis increases greatly in an instant or in a short period of time, and it is easy to exceed or even far exceed the upper limit of the safe pressure of the renal pelvis of 30mmHg. Clinical studies have shown that if the intrarenal pelvis pressure exceeds 30mmHg, and the operation time is longer, the occurrence of postoperative fever, sepsis, renal hemorrhage and other serious complications will increase.

Therefore, it is very necessary to monitor the internal pressure of the renal pelvis in the working area of the electronic flexible ureteroscope in real time. However, the electronic flexible ureteroscopes currently used in clinical practice do not have the function of real-time and accurate monitoring of the internal pressure of the renal pelvis in the operating area during the operation.

At present, there are several ways to monitor the internal pressure of the renal pelvis during electronic/fiber ureteroscopic surgery:

1) Retrogradely insert a ureteral catheter, connect to a central venous pressure monitoring system or a urodynamic monitor, and obtain the perfusate pressure in the ureteral catheter;

2) Connect a central venous pressure monitoring system or a urodynamic monitor at the inlet valve of the instrument channel of the electronic/fiber ureteroscope to obtain the perfusion pressure in the instrument channel and water inlet valve of the electronic/fiber ureteroscope;

3) Install a sensor at the port of the pressure measurement channel outside the body of the flexible scope guide sheath (hereinafter referred to as the port part outside the body, this channel meets the endoscope channel), and connect the central venous pressure monitoring system or urodynamic monitor to obtain soft The perfusion fluid pressure of the extracorporeal port of the scope guide sheath and the perfusion/drainage pressure of the gap between the electronic/fiber ureteroscope and the flexible scope guide sheath;

4) Insert a flexible mirror guide sheath with an independent lateral channel. The lateral channel is not connected to the entire segment of the mirror entrance channel. flush. Through the port of the independent lateral channel, if a central venous pressure monitoring system or a urodynamic monitor is connected, the perfusate pressure in the lateral channel is obtained;

5) Establish a percutaneous renal puncture channel, introduce the catheter and fix it, connect the central venous pressure monitoring system or urodynamic monitor, and obtain the perfusate pressure in the catheter;

However, none of the pressure data monitored and acquired by the above-mentioned pressure measurement methods is real-time and accurate intrarenal pelvis pressure in the working area, or cannot obtain real-time and accurate intrarenal pelvis pressure in the working area of the electronic/fiber ureteroscope. Because in electronic/fiber ureteroscopic surgery, the port at the tip of the flexible mirror, that is, the pressure of perfusion fluid injected into the terminal port, is the perfusion water pressure in the working area, which is the real-time and most accurate information for electronic/fiber ureteroscopic surgery. , The most clinically valuable intrarenal pelvis pressure data.

【Content of invention】

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide an electronic flexible ureteroscope with real-time pressure monitoring function and its operation method, which can monitor the pressure in the working area of the electronic flexible ureteroscope in real time and accurately, Improve surgical safety and success rate.

To solve the above technical problems, the present invention adopts the following technical solutions:

An electronic flexible ureteroscope with real-time pressure monitoring function, comprising a mirror tube and an operation part connected with the mirror tube, the mirror tube includes a tip part arranged at its end, and the tip part is provided with a camera module , the mirror tube is provided with a first channel and a second channel through the tip, the first channel is inserted with an illumination beam, and the second channel is equipped with a device for monitoring the working position of the tip. Fiber optic pressure sensor for pressure in the area.

Adopt beneficial effect of the present invention:

In the present invention, a first channel and a second channel are arranged in the mirror tube, an illumination beam is inserted in the first channel, and an optical fiber pressure sensor is installed in the second channel, the optical fiber pressure sensor is a kind of optical fiber sensor, and the main The working principle is to transmit the optical signal of the light source through the optical fiber. The main advantage of the optical fiber sensor is its high sensitivity. Since it uses optical fiber for transmission, the optical fiber pressure sensor is usually slender, and the diameter can be made very small, so it is very It is suitable for use in electronic flexible ureteroscopes. Because electronic flexible ureteroscopes have relatively high requirements on volume and diameter, some sensors with large volume or large diameters cannot be installed at the tip. Optical fiber sensors just meet this requirement, and After the optical fiber pressure sensor is installed, the pressure signal monitored by it is the pressure signal of the working area where the tip is located, and there will be no position accuracy error, and because it is transmitted by optical fiber, the transmission speed is fast and the interference is low. real-time monitoring.

Therefore, after using the present invention, real-time and accurate monitoring of the pressure in the working area of the electronic flexible ureteroscope can be truly completed. The pressure in the working area is generally the internal pressure of the renal pelvis clinically. The most clinically valuable intrarenal pelvic pressure data in electronic flexible ureteroscopic surgery. Therefore, the operating doctor can adjust the perfusion water pressure and perfusion/drainage fluid volume according to the situation, control the operation time, and effectively prevent serious complications such as renal function damage, sepsis, and renal hemorrhage have become a reality.

Preferably, a transmission fiber is provided in the second channel, one end of the transmission fiber is connected to the transmission fiber pressure sensor, and the other end of the transmission fiber is connected to a fiber optic signal processor.

Preferably, the fiber optic signal processor is connected with a perfusion pump; and/or, the fiber optic signal processor is connected with an image display.

Preferably, a third channel is provided in the mirror tube, and a water inlet valve port is provided on the operation part. One end of the third channel communicates with the water inlet valve port, and the other end of the third channel passes through the tip end. The optical fiber When the signal processor is connected with an infusion pump, the infusion pump is connected to the water inlet valve port.

Preferably, the operation part is connected with a light guide tube, the light guide tube is connected with a light guide plug part, and the light guide plug part is externally connected with a signal transmission sleeve, and the transmission optical fiber passes through the mirror tube, light guide tube, The light guide plug part and the signal transmission sleeve are connected with the optical fiber signal processor.

Preferably, a fourth channel is provided in the mirror tube, the camera module is installed in the fourth channel, the light guide plug part includes a photoelectric plug, and the photoelectric plug and the camera module pass through cable connection; and/or, the illumination light beam passes through the light guide pipe and the first channel, and extends to the port of the tip portion.

Preferably, the end of the optical fiber pressure sensor is coated with a hydrogel layer.

Preferably, the diameter of the optical fiber pressure sensor is 0.1mm-0.8mm.

Preferably, a protective sleeve is provided outside the optical fiber pressure sensor and/or the jacket of the transmission optical fiber.

In addition, the present invention also discloses an operation method of an electronic flexible ureteroscope with a real-time monitoring function. The electronic flexible ureteroscope includes a mirror tube and an operating part connected with the mirror tube. The mirror tube includes a The tip part, the tip part is provided with a camera module, and it is characterized in that the mirror tube is provided with a first channel and a second channel passing through the tip part, and an illumination beam is inserted in the first channel, so A fiber optic pressure sensor for monitoring the pressure in the working area where the tip is located is installed in the second channel, the fiber optic pressure sensor is connected to a transmission fiber, and the other end of the transmission fiber is connected to a fiber optic signal processor, the operation method is as follows:

Automatic control:

The fiber optic signal processor is connected to a perfusion pump, and the optical fiber pressure sensor at the tip monitors the pressure signal of the working area where the tip is located, and transmits it to the perfusion pump through the fiber optic signal processor;

A preset output pressure value is set on the perfusion pump, and when the pressure value monitored by the pressure signal is less than the preset output pressure value, the perfusion pump continues to perfuse the perfusate into the working area;

When the pressure value monitored by the pressure signal is greater than the preset output pressure value, the perfusion pump stops perfusing into the working area;

When the pressure signal monitoring pressure value falls back below the preset output pressure value, restart the perfusion pump to perfuse the perfusate into the working area;

and / or

Manual control:

The optical fiber signal processor is connected with an image display, and the optical fiber pressure sensor at the tip monitors the pressure signal of the working area where the tip is located, and transmits the signal to the image display through the optical fiber signal processor. The pressure value on the image display changes, and the pressure in the working area is manually adjusted by quick drainage or valve adjustment.

In this operation method, automatic control or manual control, or a combination of automatic control and manual control is adopted to control the pressure in the working area, because the electronic flexible ureteroscope in the present invention has the function of real-time monitoring of the working area, and relies on optical fiber For transmission, the transmission speed is fast, so its feedback is quite timely, allowing medical staff to make timely judgments to take countermeasures, or adjust the pressure in the working area through automatic control of the perfusion pump, improving the safety and success rate of the operation .

Other features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

【Description of drawings】

Below in conjunction with accompanying drawing, the present invention will be further described:

Fig. 1 is a schematic structural view of Embodiment 1 of the electronic flexible ureteroscope of the present invention;

Fig. 2 is a schematic cross-sectional view of the apex in Embodiment 1 of the electronic flexible ureteroscope of the present invention;

Fig. 3 is a schematic cross-sectional view of A-A in Fig. 2;

FIG. 4 is a schematic cross-sectional view of B-B in FIG. 2 .

【detailed description】

The technical solutions of the embodiments of the present invention will be explained and described below in conjunction with the accompanying drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all of them. Based on the examples in the implementation manners, other examples obtained by those skilled in the art without making creative efforts all belong to the protection scope of the present invention.

In the following description, terms such as "inner", "outer", "upper", "lower", "left", "right", etc. that indicate orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, It is only for the convenience of describing the embodiment and simplifying the description, but does not indicate or imply that the device or element 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.

As shown in Figures 1 to 4, what is disclosed in this embodiment is an electronic flexible ureteroscope with a real-time pressure monitoring function, which is mainly used for observing the kidneys and ureters and crushing stones in the kidneys and ureters. It includes a mirror tube, an operation part 4, a light guide tube 5, and a light guide plug part 6. A photoelectric plug 61 is arranged on the light guide plug part 6. The mirror tube in this embodiment includes an insertion part 3, a bending part 2 and a tip part 1 , this part of the structure is similar to the structure of the traditional flexible ureteroscope, and will not be elaborated too much. In this embodiment, the diameter of the insertion part 3 is between 2.5 mm and 3.5 mm, and its working length is between 650 mm and 750 mm. The mirror tube is provided with a first passage 101, a second passage 102, a second passage 102 and a The third channel 103 and the fourth channel 104 can be referred to in FIG. 2 .

In this embodiment, as a preference, the first channel 101, the second channel 102, the third channel 103, and the fourth channel 104 extend to the operation part 4, and the first channel 101, the second channel 102, the third channel 103, the fourth channel The channels 104 are independent of each other in the tip part 1, and in the area of the bending part 2 and the insertion part 3, the first channel 101, the second channel 102, the third channel 103, and the fourth channel 104 can be the same channel, Separate channels are also possible.

An illuminating light beam 11 is installed in the first passage 101, and the illuminating light beam 11 is usually made of glass fiber. The illuminating light beam 11 is inserted by the photoelectric plug 61, passes through the light guide tube 5, the operation part 4, the insertion part 3, and the bending part 2. Until the apex part 1 is reached, the medical cold light source is used as the lighting system of the electronic flexible ureteroscope. This part is similar to the traditional electronic flexible ureteroscope in terms of structure and principle, and will not be elaborated;

In the second channel 102, an optical fiber pressure sensor 12 for monitoring the pressure of the working area where the tip part 1 is located is installed. The main working principle of the optical fiber sensor is to transmit the optical signal of the light source through the optical fiber. The optical fiber sensor has The advantages of slender diameter, high sensitivity, fast transmission speed, and strong anti-interference ability, in view of its special transmission mode, the optical fiber pressure sensor 12 usually uses optical fiber transmission, which is relatively slender as a whole, and the diameter of the optical fiber pressure sensor 12 itself can be made The size is very small, so it is very suitable for use in electronic flexible ureteroscopes. Because electronic flexible ureteroscopes have relatively high requirements for volume and diameter, some sensors with large volume or large diameters cannot be installed at the tip part 1 at all, while optical fibers The sensor just meets this requirement, and after the optical fiber pressure sensor 12 is installed, the pressure signal it monitors is exactly the pressure signal of the working area where the tip part 1 is located, there will be no position accuracy error, and because it is optical fiber transmission, the transmission The speed is very fast, and real-time monitoring is really achieved. The perfusion pressure of the port 1 of the tip part 1 of the flexible ureteroscope monitored and collected by the electronic flexible ureteroscope during the operation, that is, the perfusion water pressure of the perfusate injected into the terminal port, is clinically, that is, Real-time, most accurate and most clinically valuable intrarenal pelvic pressure data in flexible mirror surgery, so it can effectively reduce the incidence of complications of flexible mirror surgery and improve the safety of flexible mirror surgery;

The optical fiber pressure sensor 12 in this embodiment has a range of pressure measurement between 0 and 30mmHg. The optical fiber pressure sensor 12 is installed at the tip part 1. The optical fiber pressure sensor 12 is connected with a transmission optical fiber 13. The transmission optical fiber 13 can just be arranged at the second In the channel 102, it can be extended along the second channel 102, the operation part 4, the light guide pipe 5, and out of the light guide plug part 6. In this embodiment, the diameter of the optical fiber pressure sensor 12 is 0.1 mm to 0.8 mm, and the transmission The overall length of the optical fiber 13 is 2 m to 3 m.

The third channel 103, also known as the instrument channel or the clamp channel, can have multiple functions, one of which is used as perfusion in this embodiment, and the operating part 4 in this embodiment is provided with a water inlet valve port 43 , the third channel 103 is connected to the water inlet valve port 43 and the tip part 1, and the perfusate can be directly discharged from the port of the tip part 1 through the water inlet valve port 43 and the third channel 103;

During the operation, the perfusion fluid such as normal saline is perfused through the water inlet valve port 43, and injected into the working area through the third channel 103 to the port of the tip part 1, so that a clear surgical field of view can be obtained, and some debris can be guided with the perfusion fluid through the soft mirror. The sheath flows out of the body;

The fourth channel 104 is used to install the camera module 14. This embodiment is an electronic flexible ureteroscope. The camera module 14 is composed of a lens and a CCD/CMOS image sensor. The diameter of the CCD/CMOS image sensor is between 1 mm and 2 mm. , the camera module 14 converts the optical image into an electronic signal, transmits it through the cable 16, passes through the photoelectric plug 61, enters the image controller for signal processing, and connects the processed image signal to the image display through the video cable, and the image The display shows images in real time. Since this part is also a common technology of electronic endoscopes, it will not be elaborated too much. In this embodiment, the tip part 1 is provided with a protective lens 15 for protecting the camera module 14 .

Since the electronic flexible ureteroscope often needs to be disinfected, in order to prevent the impact of disinfection and other operations on the optical fiber pressure sensor 12, certain protective measures are also taken for the optical fiber pressure sensor 12 in this embodiment. The end is coated with a hydrogel layer (not shown in FIGS. 1 to 4 ), and the hydrogel layer preferably completely covers the outer end surface of the optical fiber pressure sensor 12 . The advantage of choosing the hydrogel layer is that the hydrogel layer has good light transmission, which will not affect the pressure signal monitored by the optical fiber pressure sensor 12, and secondly, the hydrogel layer also has very good elastic protection ability, which can ensure the pressure of the optical fiber. The sensor 12 is not damaged, and the hydrogel layer coated on the optical fiber pressure sensor 12 also has the function of sealing the second channel 102 to achieve the effect of sealing waterproof and dustproof.

In order to better protect the optical fiber pressure sensor 12, a protective sleeve is provided outside the optical fiber pressure sensor 12 and/or the outer casing of the transmission optical fiber 13. In this embodiment, preferably, the optical fiber pressure sensor 12 and the transmission optical fiber 13 are both built-in In the protective sleeve, the protective sleeve passes through the second channel 102, the operation part 4, the light guide pipe 5, and extends out of the light guide plug part 6, and the length is also 2m-3m. The protective sleeve is shown in Figures 1 to 4 not shown.

In this embodiment, the light guide plug part 6 is connected with a signal transmission sleeve 7, and the signal transmission sleeve 7 is used to protect the transmission optical fiber 13, and the transmission optical fiber 13 passes through the signal transmission sleeve 7 and is connected with a signal plug 8, The signal plug 8 is connected to an optical fiber signal processor (not shown in FIGS. 1 to 4 ), and the optical fiber pressure sensor 12 installed in the second channel 102 detects the pressure in the working area where the tip portion 1 is located in real time, and sends the pressure The data is converted into an optical signal, and transmitted to the optical fiber signal processor through the insertion part 3 , the operation part 4 , the light pipe 5 , the light guide plug part 6 , and the signal plug 8 . In addition, in order to protect the signal plug 8 well, a disinfection cover 81 is sleeved on the signal plug 8 when not in use.

The fiber optic signal processor in this article refers to the terminal that receives and processes the signal, usually a FISO signal conditioner. The FISO signal conditioner displays the information of the fiber optic sensor on the LCD screen. The model of the FISO signal conditioner can be selected in many ways, such as Single-channel OEM version signal conditioner, dual-channel OEM version signal conditioner, single-channel signal conditioner, multi-channel signal seasoning, medical grade signal conditioner, generally single-channel signal conditioner is preferred.

The optical fiber signal processor preferably divides the signal for processing, wherein one signal is transmitted to the perfusion pump (not shown in Figures 1 to 4), and the pressure and flow are automatically output in real time according to the surgical needs; the other signal is transmitted to the image display, The perfusion water pressure in the working area is displayed in real time, which is convenient for the operating doctor to observe and judge the change of the perfusion water pressure in the kidney in time, and make corresponding countermeasures in time.

Of course, it should be noted that in other implementations, the fiber optic signal processor is not limited to the implementation of splitting and processing the signal, and can only be transmitted to the perfusion pump, or only to the image display, and these implementations fall into the within the protection scope of the present invention.

In addition, this embodiment also includes a steering mechanism for adjusting the bending of the bending part 2. The steering mechanism includes a bending handle 41 and a bending assembly 42. The bending handle 41 is arranged on the operating part 4. Pull the bending handle 41, The up and down bending direction and bending angle of the bending part 2 can be adjusted and controlled accordingly, and the viewing direction and viewing angle of the tip part 1 can also be adjusted and controlled synchronously. The maximum up and down bending angle of the bending part 2 is ≥275°.

The bending handle 41 has a built-in rotating hub. By rotating the traction steel wire on the hub, the diameter of the traction steel wire is 0.2 mm to 0.5 mm, and the adjustment and bending action of the bending part 2 can be adjusted. When the best observation direction is reached, the bending handle can be used The locking button on the 41 locks the bending assembly 42 to keep the bending angle and bending direction required for the operation. Since the structural features of the bending handle 41 , the bending assembly 42 , and the bending portion 2 are relatively commonly used structures in flexible ureteroscopes, they will not be elaborated too much.

As a preference, function buttons such as “photographing”, “zoom in”, and “white balance” can be set on the operation part 4 in this embodiment to control or adjust the shooting of the camera module 14 . In addition, in this embodiment, a leak detection interface 62 is provided on the light guide plug part 6, and the leak detection interface 62 is connected with the light guide tube 5, and the user checks the leak detection interface 62 before and after each use, and before cleaning and disinfection. The interface 62 is injected with a certain pressure of gas, and the electronic soft mirror can be used or cleaned and disinfected after confirming that it is intact.

The specific operating method of this embodiment is mainly the combination of automatic control and manual control;

Automatic control:

The optical fiber signal processor is connected with a perfusion pump, and the optical fiber pressure sensor 12 located at the tip part 1 monitors the pressure signal of the working area where the tip part 1 is located, and transmits it to the perfusion pump through the optical fiber signal processor;

A preset output pressure value is set on the perfusion pump. When the pressure value monitored by the pressure signal is lower than the preset output pressure value, the perfusion pump continues to pour perfusate into the working area, and the preset output pressure value is usually set at 30mmHg;

When the pressure value monitored by the pressure signal is greater than the preset output pressure value, the perfusion pump stops injecting perfusate into the working area;

When the pressure signal monitoring pressure value falls back below the preset output pressure value, restart the perfusion pump to perfuse the perfusate into the working area;

Manual control:

The optical fiber signal processor is connected with an image display, and the optical fiber pressure sensor 12 located at the tip part 1 monitors the pressure signal of the working area where the tip part 1 is located, and transmits the signal to the image display through the optical fiber signal processor. The pressure value on the image display changes, and the pressure in the working area is manually adjusted by quick drainage or valve adjustment.

It should be noted that in this embodiment, a combination of automatic control and manual control is adopted. In other modes, automatic control or manual control can also be used alone. These operating methods also fall into the scope of the present invention. within the scope of protection.

In addition, the present invention also discloses an operation method for kidney stones under the electronic flexible ureteroscope, the specific process is as follows:

(1) Take a rigid ureteroscope, insert a guide wire retrogradely under the rigid ureteroscope, go up the mirror along the guide wire to the UPJ, and make a mark on the wall of the ureteroscope at the urethral opening;

(2) Indwell the guide wire and exit the rigid ureteroscope in the first step;

(3) Select the appropriate flexible mirror guide sheath (including obturator) according to the patient's gender, age, and physical fitness. For adult patients, women generally use a working length of 35 cm, and men use a flexible mirror guide sheath with a working length of 45 cm ( with obturator);

(4) Align the front port of the flexible scope guide sheath containing the obturator with the port of the ureteroscope. The scale marked on the sheath wall of the guide sheath corresponds to the mark on the tube wall of the ureteroscope. The corresponding scale is the flexible scope. The end of the length of the introducer sheath entering the human body;

(5) Insert the guide wire into the pointed channel at the front end of the obturator of the flexible scope guide sheath, insert the ureteroscope into the urethra to the bladder, then the flexible scope guide sheath enters the bladder under the guidance of the guide wire, and Under the supervision of the ureteroscope, enter the opening of the ureter, and then withdraw the ureteroscope;

(6) Under the guidance of the guide wire, send the guide sheath of the flexible mirror to the corresponding scale marked in step 4, and exit the obturator. At this time, the flexible mirror can be monitored with the help of a C-arm X-ray machine if necessary The length of the guide pin and the determination of the location of the stone;

(7) Connect the electronic flexible ureteroscope with real-time pressure monitoring function, that is, this embodiment, to the perfusion pump. According to the needs of clinical operations, set a safe upper limit of the pressure in the working area (not higher than 30mmHg) on the perfusion pump, and complete it in vitro The up and down bending performance test of the electronic flexible ureteroscope, the real-time perfusion pressure monitoring function test, after the test, the embodiment is inserted into the kidney along the flexible scope guide sheath;

(8) Exit the guide wire, and adjust the steering and bending of the bending part 2 by adjusting the steering mechanism on the operating part 4 in this embodiment, that is, the bending handle 41, until stones are found;

(9) Taking the treatment of calculus in the lower renal calyx as an example, try to cover the calculus with a stone basket first and move it to the middle and upper calices (enter any instrument through the third channel 103, such as a stone basket, laser optical fiber, guide wire, etc.) etc., the bending part 2 must be reset and straightened, the same below), this operation can reduce the bending of the electronic flexible ureteroscope with real-time pressure monitoring function in this case, and reduce the loss of the laser optical fiber; The insertion of the laser fiber into the channel 103 causes the bending angle of the bending part 2 to decrease, which affects the observation and operation of the soft mirror; it can also reduce the possibility that the laser fiber may emit laser light through the broken part after the bending part 2 is fatigued and broken, and break down the bending part 2 and the bending part. Snake bones, and even the probability of damage to the soft mirror;

(10) After moving the stones to the middle or upper cup, exit the stone basket, insert the laser fiber, adjust the laser output energy according to the operation needs, or powder the stones, most of the powdered debris can be discharged by the patient . During the operation, the flexible mirror guide sheath can also flow out of the body with the perfusion fluid. Or break the stones into fragments, and occasionally use a stone basket to cover the fragments outside the body;

(11) Check under the fluoroscopy of the camera module 14 or the C-arm X-ray machine in this embodiment, and confirm that there are no residual stones. Exit this embodiment, insert the guide wire through the flexible scope guide sheath, exit the flexible scope guide sheath, insert the double J tube of the corresponding specification through the guide wire, and check the placement of the double J tube in the bladder segment with a hard ureteroscope If the position is ideal, the guide wire is withdrawn, the ureteroscope is withdrawn, and the three-lumen catheter and drainage bag are left in place to complete the operation.

During the whole process of the operation in this case, the perfusate pumped by the infusion pump was injected into the kidney through the flexible electronic ureteroscope with real-time pressure monitoring function in this case to provide a clear surgical field of vision.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the accompanying drawings and the description in the above specific embodiments content. Any modifications that do not depart from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims (10)

1. a kind of electronics Flexible ureteroscope with real-time pressure monitoring function, including telescope and the operation that is connected with the telescope Portion, the telescope include being located at the leading end portion of its end, and the leading end portion is provided with camera module, it is characterised in that the telescope It is interior to be provided with the first passage and second channel for penetrating the leading end portion, it is fitted with illuminating bundle in the first passage, described the Fibre optic compression sensor for monitoring pressure in working region residing for the leading end portion is installed in two passages.

2. the electronics Flexible ureteroscope with real-time pressure monitoring function as claimed in claim 1, it is characterised in that described second Transmission Fibers are provided with passage, described Transmission Fibers one end is connected with the fibre optic compression sensor, the Transmission Fibers it is another One end is connected with fiber-optic signal processor.

3. the electronics Flexible ureteroscope with real-time pressure monitoring function as claimed in claim 2, it is characterised in that the optical fiber Signal processor is connected with charge pump；And/or the fiber-optic signal processor is connected with image display.

4. the electronics Flexible ureteroscope with real-time pressure monitoring function as claimed in claim 3, it is characterised in that the telescope Interior to be provided with third channel, the operating portion is provided with water inlet valve port, and described third channel one end connects with water inlet valve port, the other end Insertion is to the leading end portion, and when the fiber-optic signal processor is connected with charge pump, the charge pump is connected to the water intaking valve Mouthful.

5. the electronics Flexible ureteroscope with real-time pressure monitoring function as claimed in claim 3, it is characterised in that the operation Portion is connected with light pipe, and the light pipe is connected with guide-lighting intercalation part, and guide-lighting intercalation part is circumscribed with signal transmission sleeve pipe, the biography Fibre is lost to transmit sleeve pipe by the telescope, light pipe, guide-lighting intercalation part, signal and be connected with the fiber-optic signal processor.

6. the electronics Flexible ureteroscope with real-time pressure monitoring function as claimed in claim 5, it is characterised in that the telescope Interior to be provided with fourth lane, the camera module is arranged in the fourth lane, and the guide-lighting intercalation part includes photoelectricity plug, institute State and pass through cable connection between photoelectricity plug and the camera module；And/or the illuminating bundle is through the light pipe, the One passage, extend the port of the leading end portion.

7. the electronics Flexible ureteroscope with real-time pressure monitoring function as described in one of claim 1 to 6, it is characterised in that The end of the fibre optic compression sensor is coated with hydrogel layer.

8. the electronics Flexible ureteroscope with real-time pressure monitoring function as described in one of claim 1 to 6, it is characterised in that A diameter of 0.1mm~0.8mm of the fibre optic compression sensor.

9. the electronics Flexible ureteroscope with real-time pressure monitoring function as described in one of claim 2 to 6, it is characterised in that Protection sleeve pipe is arranged with outside the fibre optic compression sensor and/or outside the Transmission Fibers.

10. a kind of operating method of the electronics Flexible ureteroscope with real time monitoring function, electronics Flexible ureteroscope include telescope and The operating portion being connected with the telescope, the telescope include being located at the leading end portion of its end, and the leading end portion is provided with camera module, Characterized in that, the first passage and second channel for penetrating the leading end portion, the first passage interpolation are provided with the telescope Equipped with illuminating bundle, the optical fiber pressure for monitoring pressure in working region residing for the leading end portion is installed in the second channel Force snesor, fibre optic compression sensor are connected with Transmission Fibers, and the other end of Transmission Fibers is connected with fiber-optic signal processor, behaviour It is as follows to make method：

Automatically control：

The fiber-optic signal processor is connected with charge pump, and the fibre optic compression sensor positioned at leading end portion is monitored residing for leading end portion Working region pressure signal, and charge pump is transferred to by the fiber-optic signal processor；

Default output pressure value is set on charge pump, when the pressure value that pressure signal monitors is less than default output pressure value, The charge pump continues to irrigate perfusion liquid toward in working region；

When the pressure value that pressure signal monitors is more than default output pressure value, the charge pump stops filling toward in working region Note perfusion liquid；

When pressure signal monitoring pressure value is fallen back to below default output pressure value again, charge pump is restarted toward working region Interior perfusion perfusion liquid；

And/or

Manual control：

The fiber-optic signal processor is connected with image display, and the fibre optic compression sensor positioned at leading end portion monitors leading end portion The pressure signal of residing working region, and image display is transferred to by the fiber-optic signal processor, user passes through sight Pressure value changes on altimetric image display, the manual adjustment work region internal pressure by way of quick drainage or control valve Power.