Two-channel ureter nephroscope with temperature and pressure measuring function

Abstract

The utility model discloses a two-channel ureteral nephroscope with temperature and pressure measuring functions, which comprises a nephroscope tube, a tip part and a handheld part, the tip part is arranged at the far end of the nephroscope tube, and the handheld part is connected to the near end of the nephroscope tube; an instrument operation channel and a water injection operation channel which are mutually independent are arranged in the endoscope tube; the handheld part comprises a connecting assembly and a leakage-proof assembly, the instrument operation channel divides a channel connected with the instrument operation channel into two branch channels through the connecting assembly, the first branch channel is connected with the leakage-proof assembly to form an instrument inlet channel, the second branch channel is connected with the drainage valve, and the water injection operation channel is communicated with the water injection valve through the connecting assembly; an integrated pressure and temperature sensor and a camera are arranged on the far end face of the tip part, and are connected with an image processor and a filling pump which are matched with the outside for use through a camera and light source connecting wire, so that pressure and temperature monitoring is realized, and the pressure and temperature in the ureter are safely and effectively controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a double-channel ureterorenoscope with temperature and pressure measurement functions. Background Art

[0002] Ureterorenoscopes are one of the most important and commonly used medical devices in urological surgery, widely used for the examination and treatment of diseases such as upper urinary tract stones. To alleviate patient pain and minimize surgical trauma, ureterorenoscopes must have a minimal diameter. However, to facilitate operation, the working channel within the scope must be as large as possible. However, due to manufacturing limitations, most existing ureterorenoscopes have only a single working channel.

[0003] However, to maintain a clear field of view during ureterorenoscopy, it is often necessary to continuously inject flushing fluid into the surgical site through the working channel of the scope. As the procedure progresses, the flushing fluid will gradually become turbid due to bleeding or lithotripsy, affecting the clarity of the field of view. At this time, the flushing fluid must be stopped and the turbid water drained. Once the dirty water is completely drained, clean water must be re-injected before the procedure can continue.

[0004] Therefore, the existing ureterorenoscope, which can only perform water injection and drainage through the same lumen, inevitably has the following disadvantages:

[0005] (1) Since water injection and drainage can only be performed separately, water circulation cannot be formed, resulting in unclear vision during surgery. Separate operations of water injection and drainage will also affect the efficiency of the surgery and prolong the operation time;

[0006] (2) Currently, perfusion is mostly achieved through manual injection of a syringe or a medical perfusion pump. Continuous water injection causes excessive pressure at the end of the endoscope and in the kidney. When the intrarenal pressure is too high, urine will reflux, and various components and bacteria in the urine will be easily absorbed into the blood, leading to postoperative fever and even systemic infection.

[0007] (3) Early identification and timely treatment of high pressure in the renal pelvis are the key to preventing this type of high-fatality complication. Ordinary ureterorenoscopes do not have their own pressure measurement function. The commonly used renal pelvic pressure measurement in clinical practice is usually achieved through renal puncture catheterization or ureteral retrograde cannulation. In this way, the pressure measuring tube is often not in the same position as the specific surgical site, the pressure measurement is not accurate enough, and it cannot reflect the pressure in the renal collecting system in real time;

[0008] (4) Currently, holmium laser or thulium laser lithotripsy is mostly used for lithotripsy. Long-term laser lithotripsy can cause the temperature of the fluid in the ureter to be too high. Local high temperature may cause thermal damage to human tissues, and in severe cases, even complications such as necrosis.

[0009] (5) Early identification and timely cessation of laser lithotripsy, allowing continuous water flow to reduce the temperature, are key. Ordinary ureterorenoscopes do not have a built-in temperature measurement function.

[0010] In summary, the defects of the existing technology are: it is impossible to simultaneously inject and drain water during the existing ureteroretrorenoscopy or surgery, and it is difficult to accurately and in real time monitor the pressure and temperature in the ureter, which can easily affect the safety of the surgery. Utility Model Content

[0011] The purpose of the utility model is to provide a dual-channel ureterorenoscope with temperature and pressure measurement functions, which overcomes the technical problems of the existing ureterorenoscope that cannot simultaneously inject and drain water during examination or surgery, and is difficult to accurately and in real time monitor the pressure and temperature in the ureter, thereby safely and effectively controlling the pressure and temperature in the ureter.

[0012] The utility model provides a dual-channel ureterorenoscope with temperature and pressure measurement functions, comprising a scope tube, a tip end portion and a handheld portion, wherein the tip end portion is arranged at the distal end of the scope tube, and the handheld portion is connected to the proximal end of the scope tube;

[0013] The scope tube includes an instrument operation channel and a water injection operation channel that are independent of each other. The instrument operation channel and the water injection operation channel are arranged in parallel. The distal end of the instrument operation channel is connected to the front end portion, and the proximal end of the instrument operation channel is connected to the handheld portion. The distal end of the water injection operation channel is connected to the front end portion, and the proximal end of the water injection operation channel is connected to the handheld portion.

[0014] The handheld portion includes a connecting assembly and a leak-proof assembly. The instrument operation channel is divided into two branch channels by the connecting assembly. The first branch channel is connected to the leak-proof assembly to form an instrument inlet channel, and the second branch channel is connected to the drain valve. The water injection operation channel is connected to the water injection valve through the connecting assembly.

[0015] The distal end of the tip portion is provided with an integrated pressure and temperature sensor and a camera. The extension line of the integrated pressure and temperature sensor is integrated with the camera line in the handheld portion, and is connected to the external image processor and perfusion pump through the camera and light source connecting line to realize pressure and temperature monitoring.

[0016] Preferably, one side of the first branch channel is connected to the proximal end of the instrument operation channel, the other side of the first branch channel is fixedly connected to the anti-leakage component, and the first branch channel is extended along the length direction of the instrument operation channel.

[0017] Preferably, the drain valve and the water injection valve are respectively arranged on the connections on both sides of the proximal end surface of the handheld part.

[0018] Preferably, a drain valve and a water filling valve are provided on the water outlet pipe and the water inlet pipe respectively.

[0019] Preferably, one side of the second branch channel is communicated with the proximal end of the instrument operation channel, and the other side of the second branch channel is communicated with the water outlet pipe.

[0020] Preferably, the first branch channel and the second branch channel are combined through the connecting component to form the instrument operation channel.

[0021] Preferably, the tip portion has a first end face and a second end face, the first end face and the second end face are connected to form a bending portion, the bending portion is provided with a drainage port, and the drainage port is connected to the instrument operation channel.

[0022] Preferably, the integrated pressure and temperature sensor is arranged on the first end surface, and the first end surface is also provided with an LED light source, a camera and a filling port, and the filling port is connected to the water injection operation channel.

[0023] Preferably, one or more sensing through holes are provided on the outer surface of the tip portion.

[0024] Preferably, the perfusion pump is a pressure feedback perfusion pump, which is connected to an external image processor to automatically adjust perfusion parameters.

[0025] Preferably, the perfusion pump is a perfusion pump with a negative pressure function, and the perfusion pump with a negative pressure function is connected to the water injection operation channel through a negative pressure catheter.

[0026] Preferably, the perfusion pump adopts a temperature feedback perfusion pump, which is connected to an external image processor and issues an alarm when the temperature exceeds a set threshold.

[0027] Compared with the prior art, the utility model has the following advantages:

[0028] The ureteronephroscope provided by the utility model increases the circulation speed of the perfusion fluid by setting up a double channel, which can reduce the pressure in the renal pelvis. At the same time, it can be connected to a negative pressure aspirator when necessary to accelerate the outflow of stone fragments, blood clots, and perfusion fluid during surgery, further reducing the pressure in the renal pelvis.

[0029] The utility model can monitor the pressure in the renal pelvis or the surgical site in real time by locating the pressure sensor at the front of the scope; the signal of the pressure sensor can be transmitted to the monitor. When the measured pressure value exceeds the set threshold, the monitor can automatically alarm, making it easier for doctors to grasp the diagnosis or treatment situation, reduce the chance of urinary tract infection or even sepsis, and improve surgical safety.

[0030] The utility model can detect the temperature of the endoscope tube and the insertion cavity in real time by locating the temperature sensor at the front of the endoscope body, and immediately transmit the temperature information of the endoscope tip to the monitoring device for display. When the measured temperature value exceeds the set threshold, the monitor can automatically alarm, making it easier for doctors to grasp the diagnosis or treatment situation, avoid complications caused by excessive temperature, and improve surgical safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is an example diagram of the structure of a dual-channel ureterorenoscope with temperature and pressure measurement functions in an embodiment of the present invention;

[0032] Figure 2 This is an example diagram of the dual-channel structure in an embodiment of the present utility model;

[0033] Figure 3 This is a structural example diagram of the camera tip portion in an embodiment of the present utility model;

[0034] in,

[0035] 1- tip end, 2- mirror tube, 3- leak-proof component, 4- water injection valve, 5- drain valve, 6- camera and light source connection line, 7- handheld part, 8- connection component, 9- instrument operation channel, 10- water injection operation channel 10, 11- irrigation port, 12- drain port, 13- integrated pressure and temperature sensor, 14- sensing through hole, 15- LED light source, 16- camera, 17- first end face, 18- second end face. DETAILED DESCRIPTION

[0036] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand the other advantages and functions of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments, and the details in this specification can be modified or changed in various ways based on different perspectives and applications without departing from the spirit of the present invention. It should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, “a plurality of” means two or more.

[0037] It should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0038] In addition, in the description of this application, the "proximal end" and "distal end" are commonly used terms in the medical field. Specifically, the "proximal end" refers to the end closest to the operator, the "proximal surface" refers to the end surface closest to the operator, the "distal end" refers to the end farther from the operator, and the "distal surface" refers to the end surface farther from the operator.

[0039] Example 1

[0040] The utility model provides a dual-channel ureterorenoscope with temperature and pressure measurement functions, which can be used for a renal pelvic pressure control system. It can be used for percutaneous nephrolithotomy and can also be widely used in ureteroscopic surgery and other upper urinary tract stone disease inspection and treatment operations.

[0041] See also Figure 1As shown, this embodiment provides a schematic diagram of an embodiment of a dual-channel ureterorenoscope with temperature and pressure measurement functions, comprising: a mirror tube 2, a tip portion 11 and a handheld portion 7, wherein the tip portion 1 is provided at the distal end of the mirror tube 2, and the handheld portion 7 is connected to the proximal end of the mirror tube 2; the mirror tube 2 includes an independent instrument operation channel 9 and a water injection operation channel 10, the instrument operation channel 9 and the water injection operation channel 10 are arranged in parallel, the distal end of the instrument operation channel 9 is connected to the tip portion 1, the proximal end of the instrument operation channel 9 is connected to the handheld portion 7, and the distal end of the water injection operation channel 10 is connected to the tip portion 1, and the proximal end of the instrument operation channel 9 is connected to the handheld portion 7; the handheld portion The portion 7 includes a connecting assembly 8 and a leak-proof assembly 33. The instrument operation channel 9 is divided into two branch channels by the connecting assembly 8, wherein the first branch channel is connected to the leak-proof assembly 3 to form an instrument inlet channel, and the second branch channel is connected to the drain valve 5. The water injection operation channel 10 is connected to the water injection valve 4 through the connecting assembly 8. The distal end of the distal end 1 is provided with an integrated pressure and temperature sensor 13 and a camera 16. The extension line of the integrated pressure and temperature sensor 13 is integrated with the camera line in the handheld portion 7. The camera and light source connecting line 6 is connected to the external image processor and the perfusion pump for pressure and temperature monitoring. Among them, the instrument operation channel 9 used in this embodiment is a channel that integrates water discharge and instrument operation. The independent instrument operation channel 9 and water injection operation channel 10 are not affected by each other.

[0042] Those skilled in the art will understand that in this embodiment, the electronic mirror, LED light source 15 and dual channels are all integrated on the distal end 1, which improves the convenience of surgical operation. The two channels connecting the leak-proof component 3 and the drain valve 5 are merged into the instrument operation channel 9 through the connecting component 8, that is, the first branch channel and the second branch channel are merged through the connecting component 8 to form the instrument operation channel 9; in addition, the water injection operation channel 10 is directly connected to the water injection valve 4 through the connecting component 8. The dual-channel structure increases the circulation speed of the perfusion fluid and can reduce the pressure in the renal pelvis. At the same time, it can be connected to a negative pressure suction device when necessary to speed up the outflow of stone fragments, blood clots, and perfusion fluid during surgery, further reducing the pressure in the renal pelvis.

[0043] See also Figure 2As shown, the anti-leakage component 3 used in this embodiment can be a mutually cooperating threaded knob component for tightening the first branch channel to prevent water leakage. The connecting component 8 can be a mutually clamping connector or other integrally formed connecting component with corresponding channel holes, so that the instrument operation channel 9 passes through the connecting component 8 and is divided into two channels, one connected to the drain valve 5 and the other connected to the anti-leakage component 3, and the water injection operation channel 10 passes through the connecting component 8 and is directly connected to the water injection valve 4. The anti-leakage component 3 in this embodiment uses a silicone cap.

[0044] One side of the first branch channel is connected to the proximal end of the instrument operation channel 9, and the other side of the first branch channel is fixedly connected to the leakage prevention component 3. The first branch channel is extended along the length of the instrument operation channel 9. It can be understood that the first branch channel extends along the length direction and connects with the leakage prevention component 3 to form a single channel without any bends in the channel. The formed straight channel facilitates the entry of instruments.

[0045] The drain valve 5 and the water injection valve 4 are respectively arranged on the connections on both sides of the proximal end surface of the handheld part 7, which is beneficial to controlling the speed of drainage and perfusion and reducing the pressure in the renal pelvis.

[0046] See also Figure 3 As shown, the tip portion 1 has a first end face 17 and a second end face 18, the first end face 17 and the second end face 18 are connected to form a bent portion, the bent portion is provided with a drain port 12, and the drain port 12 is connected to the instrument operation channel 9. It can be understood that the first end face 17 and the second end face 18 on the tip portion 1 in this embodiment are not on the same plane.

[0047] In one embodiment, the integrated pressure and temperature sensor 13 is disposed on the first end face, and the first end face is also provided with an LED light source 15, a camera 16, and an infusion port 11, the infusion port 11 being in continuous communication with the water injection operation channel 10. Thus, by locating the integrated pressure and temperature sensor 13 at the front of the endoscope body, the temperature of the endoscope tube 2, i.e., the insertion portion and the insertion cavity, can be detected in real time, and the temperature information of the endoscope tip 1 can be immediately transmitted to the monitoring device for display. When the measured temperature value exceeds a set threshold, the monitor can automatically alarm, making it easier for the doctor to understand the diagnosis or treatment situation, avoiding complications caused by excessive temperature, and improving surgical safety. In this embodiment, a single LED light is used at the tip, leaving space on the opposite side for the second channel, which is beneficial for saving space.

[0048] One or more sensing holes 14, i.e., sensor holes, are provided on the outer surface of the tip 1. It can be understood that an integrated temperature and pressure sensor is placed inside the camera tip, and the sensor holes are opened on the side of the tip to increase the accuracy of the sensor during operation.

[0049] In one embodiment, the perfusion pump is a pressure feedback perfusion pump, which is connected to an external image processor to automatically adjust perfusion parameters.

[0050] In one embodiment, the perfusion pump is a perfusion pump with a negative pressure function, and the perfusion pump with a negative pressure function is connected to the water injection operation channel 10 through a negative pressure catheter.

[0051] In one embodiment, the perfusion pump is a temperature feedback perfusion pump, which is connected to an external image processor and issues an alarm when the temperature exceeds a set threshold.

[0052] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they will still fall within the scope of protection of the present invention.

Claims

1. A dual-channel ureterorenoscope with temperature and pressure measurement functions, characterized in that: The device comprises a mirror tube, a tip portion and a hand-held portion, wherein the tip portion is provided at the distal end of the mirror tube and the hand-held portion is connected to the proximal end of the mirror tube; The scope tube includes an instrument operation channel and a water injection operation channel that are independent of each other. The instrument operation channel and the water injection operation channel are arranged in parallel. The distal end of the instrument operation channel is connected to the front end portion, and the proximal end of the instrument operation channel is connected to the handheld portion. The distal end of the water injection operation channel is connected to the front end portion, and the proximal end of the water injection operation channel is connected to the handheld portion. The handheld portion includes a connecting assembly and a leak-proof assembly. The instrument operation channel is divided into two branch channels by the connecting assembly. The first branch channel is connected to the leak-proof assembly to form an instrument inlet channel, and the second branch channel is connected to the drain valve. The water injection operation channel is connected to the water injection valve through the connecting assembly. The distal end of the tip portion is provided with an integrated pressure and temperature sensor and a camera. The extension line of the integrated pressure and temperature sensor is integrated with the camera line in the handheld portion, and is connected to the external image processor and perfusion pump through the camera and light source connecting line to realize pressure and temperature monitoring.

2. The dual-channel ureterorenoscope with temperature and pressure measurement functions according to claim 1, characterized in that: One side of the first branch channel is communicated with the proximal end of the instrument operation channel, the other side of the first branch channel is fixedly connected to the anti-leakage component, and the first branch channel is extended along the length direction of the instrument operation channel.

3. The dual-channel ureterorenoscope with temperature and pressure measurement functions according to claim 1, characterized in that: The drain valve and the water injection valve are respectively arranged on the connections on both sides of the proximal end surface of the handheld part.

4. The dual-channel ureterorenoscope with temperature and pressure measurement functions according to claim 1, characterized in that: The first branch channel and the second branch channel are combined through the connecting component to form the instrument operation channel.

5. The dual-channel ureterorenoscope with temperature and pressure measurement functions according to claim 1, characterized in that: The distal end portion has a first end face and a second end face, the first end face and the second end face are connected to form a bent portion, the bent portion is provided with a drain port, and the drain port is connected to the instrument operation channel.

6. The dual-channel ureterorenoscope with temperature and pressure measurement functions according to claim 5, characterized in that: The integrated pressure and temperature sensor is arranged on the first end surface, and the first end surface is also provided with an LED light source, a camera and a filling port, and the filling port is connected with the water injection operation channel.

7. The dual-channel ureterorenoscope with temperature and pressure measurement functions according to claim 1, characterized in that: One or more sensing through holes are provided on the outer surface of the tip portion.

8. The dual-channel ureterorenoscope with temperature and pressure measurement functions according to claim 1, characterized in that: The perfusion pump adopts a pressure feedback perfusion pump, which is connected to an external image processor to automatically adjust perfusion parameters.

9. The dual-channel ureterorenoscope with temperature and pressure measurement functions according to claim 1, characterized in that: The perfusion pump is a perfusion pump with a negative pressure function, and the perfusion pump with a negative pressure function is connected to the water injection operation channel through a negative pressure catheter.

10. The dual-channel ureterorenoscope with temperature and pressure measurement functions according to claim 1, characterized in that: The perfusion pump adopts a temperature feedback perfusion pump, which is connected to an external image processor and issues an alarm when the temperature exceeds a set threshold.

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