CN217338530U

CN217338530U - Ureter soft lens

Info

Publication number: CN217338530U
Application number: CN202220678177.7U
Authority: CN
Inventors: 薛建新; 钟皎; 郭芸; 邱菲; 冯宁翰; 唐豪君
Original assignee: Xingeyu Technology Wuxi Co ltd
Current assignee: Jiangsu Yunzhong Medical Technology Co ltd; Xingeyu Technology Wuxi Co ltd
Priority date: 2022-03-10
Filing date: 2022-03-25
Publication date: 2022-09-02
Anticipated expiration: 2032-03-25

Abstract

The utility model provides a ureter soft mirror, including portion of inserting and handle, the handle with the portion of inserting near-end is connected, still include temperature measurement module and with the control module that temperature measurement module connects, control module is used for acquireing the data of temperature measurement module transmission, temperature measurement module sets up in the head end seat of portion of inserting, be located the head end terminal surface rear of portion of inserting, control module is located outside the portion of inserting. The utility model discloses with the temperature measurement module along with the head end seat together removes, temperature measurement module has the certain distance with the head end terminal surface, can avoid the interference of the local temperature of intraoperative energy platform etc. can accurately obtain the temperature of circulating water, avoids the circulating water high temperature and scalds the organism.

Description

Ureter soft lens

Technical Field

The utility model relates to the field of medical equipment, concretely relates to ureter soft mirror.

Background

Urinary calculus is a common disease in urology surgery, energy platforms such as holmium laser and thulium laser are often used in clinical minimally invasive lithotripsy, large energy of the energy platforms can be used for fully smashing and taking out calculus, and the recent curative effect is obvious; however, in the process of energy transfer of the energy platform, the photothermal reaction can generate not only shock waves but also a thermal effect, and the thermal effect can heat the local tissue temperature to cause thermal damage to the body, especially damage to surface mucosa, and even 'ureter boiled in water' or 'kidney boiled in water' in severe cases; becomes a clinical problem which needs to be solved urgently.

The patent No. 201720645721.7 proposes an endoscope with a thermometric function, but proposes only one concept and does not give specific structural features; the utility model with the application number of 201920975641.7 discloses an inner cavity temperature monitoring device, which is used for placing the device into a position needing temperature measurement in the operation process, in fact, the device is difficult to be placed into the position needing temperature monitoring actually and is difficult to be fixed in position in the operation process, thereby greatly increasing the operation difficulty and the operation steps, and the device is difficult to be changed along with energy platforms such as laser fibers and the like in real time, thereby losing the significance of temperature measurement, so the device can not be applied to the actual operation; the utility model with the application number of 201921684098.1 discloses a temperature and pressure measuring guide wire, which is difficult to be put on the position needing temperature measurement all the time in the actual operation process, and is difficult to be practical; the utility model discloses a take ureteroscope of temperature probe and a pressure measurement temperature measurement endoscope pipe and endoscope are disclosed respectively to utility model No. 202020215365.7 and 201921109406.8, the mirror body structure of this two patent publications arranges temperature probe in the camera lens front end, although can satisfy the requirement of real-time temperature measurement in the art, but in its art to the main damage of organism be the temperature of circulating water, temperature probe is located the camera lens front end and receives the influence of the energy platform that closes on like laser fiber head temperature or water inlet cold water temperature very easily and leads to the temperature measurement inaccurate, make the monitoring meaning turn down.

Disclosure of Invention

An object of the utility model is to provide a flexible ureteroscope sets up temperature measurement module on the head end seat of insertion portion, and temperature measurement module together removes with the insertion portion, can the temperature of real-time supervision circulating water, avoids the circulating water high temperature and scalds the organism.

The utility model provides a flexible ureteroscope, including insertion portion and handle, the handle with the insertion portion near-end is connected, still include the temperature measurement module and with the control module that the temperature measurement module is connected, control module is used for acquireing the data of temperature measurement module transmission, the temperature measurement module sets up in the head end seat of insertion portion, be located the head end terminal surface rear of insertion portion, control module is located outside the insertion portion.

The utility model discloses with the temperature measurement module setting in the head end seat of inserting portion, can be along with the head end seat together removes, temperature measurement module has the certain distance with the head end terminal surface, can avoid the interference of the local temperature of intraoperative energy platform etc. can accurately obtain the temperature of circulating water, avoid the circulating water high temperature and scald the organism.

Preferably, the temperature measuring module is 2-3mm away from the head end face of the inserting part and is retracted into the head end face, local temperature interference of an energy platform in the operation and the like can be reduced by the position, and the temperature of circulating water can be accurately monitored.

Preferably, the temperature measuring module is tightly attached to the side wall of the head end seat of the insertion part, and the outer surface of the temperature measuring module is subjected to waterproof packaging.

Consider temperature monitoring function's stability and temperature measurement scope, temperature measurement module adopts thermistor temperature sensor.

The thermistor of the thermistor temperature sensor is preferably a negative temperature coefficient thermistor (NTC) in view of the requirements of measurement accuracy and time. Of course, a positive temperature system thermistor (PTC) may be used.

Preferably, the control module includes a data processing unit and a function control unit, the data processing unit includes a voltage measuring circuit, the voltage measuring circuit is used for measuring the voltage of the thermistor temperature sensor, the function control unit is used for converting the voltage data into a temperature value and judging whether the temperature value exceeds a threshold value, and if the temperature value exceeds the threshold value, warning information is output. The current applied to the thermistor is constant, and when the temperature changes, the resistance value of the thermistor changes, and the measured voltage of the thermistor also changes.

Preferably, the temperature control device further comprises a display, and the control module displays the temperature value on the display. When the voltage exceeds the threshold value, the temperature value displayed on the display is continuously adjusted and flickered to serve as warning information.

Preferably, the temperature measuring module is connected with the control module through a connecting wire, the connecting wire penetrates through the inserting portion, the head end of the connecting wire is wrapped with a heat insulation pipe, and the near end of the connecting wire is connected with the control module after passing through the handle.

Compared with the prior art, the beneficial effects of the utility model are that: (1) the existing endoscope has no temperature monitoring function, and operators strictly execute the endoscope temperature monitoring function, so that the excessive temperature caused by an energy platform can be timely taken to effectively prevent the tissue thermal injury of patients and reduce postoperative complications; (2) the thermistor is arranged on the soft lens end seat with good heat-conducting property, so that the temperature can be quickly sensed in real time and fed back in the operation; (3) because the temperature sensitive resistor is away from the head end by a certain distance, the temperature of water in the renal pelvis is monitored in a key way far away from the operation channel, and the local temperature interference of an energy platform and the like in the operation can be reduced; (4) the gradient temperature threshold is preset, and early warning display is carried out in different forms, so that an operator can sense temperature information in time and can close the display, and the operation process is not interfered.

Drawings

FIG. 1 is a general schematic view of the present invention;

FIG. 2 is a schematic view of a thermistor temperature sensor;

FIG. 3 is a schematic end view of the insertion portion;

FIG. 4 is a schematic view of the present invention;

fig. 5 is a schematic diagram of the display temperature display of the present invention.

In the figure: 1-a handle; 2-an insertion portion; 3-connecting a wire; 4-a controller; 5-operating the channel; 6-imaging system eyepiece; 7-a circulating water channel; 8-bladder; 9-renal pelvis; 10-display.

Detailed Description

For clarity of description, directional terminology we use in the drawings and the following description with respect to the operator holding the ureteral soft lens horizontally with the right hand. Specifically, the terms "leading end", "leading end" refer to a location remote from the operator, while the terms "trailing end", "trailing end" refer to a location close to the operator; the term "left" refers to the left side of the operator, while the term "right" refers to the right side of the operator. Other directional terminology may be understood from the accompanying drawings and the description below.

As shown in fig. 1, 2, 3, 5, the utility model provides a ureter soft lens, including handle 1, insertion part 2, handle 2 is connected with the near-end of insertion part 1, inserts the ureter through handle operation insertion part. The temperature measuring module is arranged in the head end seat of the inserting part 2, is retracted in the head end face, is positioned behind the head end face and is 2-3mm away from the head end face. The temperature measurement module is arranged close to the side wall of the head end seat, and the outer surface of the temperature measurement module is waterproof and sealed. The head end seat can be made of metal or plastic materials with good heat conducting performance, the temperature measuring module is tightly attached to the inner side edge of the metal or plastic materials, or heat conducting glue is added to the periphery of the head, so that good heat conducting performance is obtained. The temperature measurement module is connected with a control module for acquiring data transmitted by the temperature measurement module through a connecting wire 3, and fig. 1 shows a controller 4 integrating the control module with a display. The temperature measurement module adopts optic fibre temperature sensor, considers the stability of temperature monitoring function and the needs of temperature measurement scope, the utility model discloses select thermistor temperature sensor as temperature measurement module. The thermistor of the thermistor temperature sensor can adopt a negative temperature coefficient thermistor (NTC) or a proper positive temperature coefficient thermistor (PTC). The utility model discloses the demand of considering measurement temperature precision and time, the preference is selected negative temperature coefficient thermistor (NTC). The connecting lead 3 passes through the inner part of the ureter soft lens insertion part, the front end of the connecting lead is wrapped by the heat insulation pipe, and the rear end of the connecting lead runs in parallel in the insertion part fiber hose and is connected with the control module through the handle part. The control module comprises a data processing unit and a function control unit, wherein the data processing unit comprises a voltage measuring circuit, and the voltage measuring circuit is used for measuring the voltage of a thermistor of the thermistor temperature sensor. The voltage measuring circuit also comprises an amplifier and an analog-to-digital converter, and the measured voltage signal is amplified by the amplifier and then converted into a digital signal by the analog-to-digital converter. The function control unit is used for converting the voltage data into a temperature value and judging whether the temperature value exceeds a threshold value, and if the temperature value exceeds the threshold value, warning information is output. For example, when the voltage exceeds a threshold value, the temperature value displayed on the display continuously moves to flash, continuously changes color, or intermittently whistles as warning information. As shown in fig. 5, the temperature value is displayed at the corner of the display, which does not affect the operation image display, and may be displayed as "temperature + ° c" or "temperature + ° c". If the temperature value seriously exceeds the threshold value, the temperature value can continuously jump and flash, change the color and continuously jump, flash the screen for 1-2 times or continuously whistle to serve as an early warning form to remind an operator of immediate treatment; if the operator feels that the temperature value shows that the operation is influenced, the function can be turned off or suspended from the main machine 'temp'.

The following is a detailed description of the use of the present invention. The ureter soft lens is sterilized and connected with the lens body and the controller before use. The ureter sheath is inserted, and the temperature control ureteroscope insertion part is inserted into the urethra along the ureter sheath in a retrograde manner under the irradiation of the endoscope cold light source and the direct vision of the ocular lens 6 of the imaging system, reaches the bladder 8 ureter and reaches the renal pelvis 9. During insertion, continuous water injection through the operation channel of the endoscope body is needed to keep the visual field clear and the renal pelvis of the ureter full.

In the following, taking lithotripsy and stone extraction through a ureter soft lens as an example, but the invention is not limited to the operation, and any endoscope is suitable for a scene needing temperature monitoring at body temperature. After the ureter soft lens reaches the calculus pre-judging position, an operator adjusts the position of the lens body head end by rotating the soft lens handle 1 and pulling the steering rod, and at the moment, the thermistor temperature sensor and the soft lens end base move in a coordinated mode. After finding the calculus, the instrument is inserted into an energy platform transmission passage (such as a laser optical fiber) along the operation channel 5, aligned with the calculus and powered to crush the calculus. In order to make the operator clearly know the real-time temperature, the temperature monitoring process is perfected as follows in the embodiment.

With the start of the working of the energy platform (such as holmium laser, thulium laser, etc.), large heat is generated near the head end of the lens body, the temperature of the surrounding circulating water is rapidly increased, and if the lens body cannot be cooled in time, the thermal damage of the mucosa layer in the cavity can be caused in a short time. The thermistor is arranged on the side wall of the head seat, and the temperature of the thermistor can be rapidly increased by the good heat conduction effect of the head seat and/or the surrounding heat conduction glue.

The connecting wires transmit voltageAnd for the voltage measuring circuit, an amplifier in the measuring circuit amplifies the voltage signal and transmits the amplified voltage signal to the A/D analog-to-digital converter, and the A/D analog-to-digital converter further converts the voltage signal into a digital signal and outputs the digital signal to the function control unit. After acquiring the digital signal, the function control unit calculates the digital signal into temperature information. Considering the accuracy requirement of the measured temperature in the operation, "resistance-temperature" can be converted by using the Steinhart-Hart function relation: 1/T ═ A + Bln (R) _T )+C(ln(R _T )) ³ Wherein T is the temperature in Kelvin; r _T Is the resistance value of the thermistor at the temperature T; and A, B and C are Steinhart-Hart parameters provided by the thermistor manufacturer. And the temperature between the Kelvin and the centigrade can be converted by the following formula: t (k) ═ t (° c) + 273.15.

Then the temperature information is transmitted to a judging module of the function control unit, and the judging module judges whether the measured value is larger than a set threshold value according to the data result; if not, normally presenting a temperature value on the display; if yes, corresponding warning is carried out on the display, and the warning form is related to the temperature rising gradient.

When seeing the early warning information of the screen corner, the operator can choose to pause energy transmission, wait for the temperature display to fall to the safe value range, alarm to be relieved and then perform the operation, or can strengthen the transmission of circulating water, quickly reduce the water temperature in the operation area, if the alarm is seriously increased, the operator must pause the operation immediately and take corresponding cooling measures. If the power is continuously supplied during the operation, the temperature display is always in a safe area, and the operator feels that the temperature display is unnecessary, the assistant can also press a 'temp' key on the host machine to suspend the use of the temperature control function.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention; any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A ureteroscope, includes inserted part and handle, the handle with inserted part proximal end is connected its characterized in that: the temperature measurement module is arranged in the head end seat of the insertion part and behind the head end face of the insertion part, and the control module is positioned outside the insertion part.

2. The flexible ureteroscope according to claim 1, wherein: the distance between the temperature measuring module and the end face of the head end of the inserting part is 2-3 mm.

3. The flexible ureteroscope according to claim 1, wherein: the temperature measuring module is tightly attached to the side wall of the head end seat of the inserting part.

4. The flexible ureteroscope according to claim 1, 2 or 3, wherein: the temperature measuring module is a thermistor temperature sensor.

5. The flexible ureteroscope according to claim 4, wherein: the thermistor of the thermistor temperature sensor is a negative temperature coefficient thermistor or a positive temperature system thermistor.

6. The flexible ureteroscope according to claim 4, wherein: the control module comprises a data processing unit and a function control unit, the data processing unit comprises a voltage measuring circuit, the voltage measuring circuit is used for measuring the voltage of a thermistor of the thermistor temperature sensor, the function control unit is used for converting voltage data into a temperature value and judging whether the temperature value exceeds a threshold value, and if the temperature value exceeds the threshold value, warning information is output.

7. The flexible ureteroscope according to claim 6, wherein: the temperature control device further comprises a display, and the control module displays the temperature value on the display.

8. The flexible ureteroscope according to claim 7, wherein: when the voltage exceeds the threshold value, the temperature value displayed on the display is continuously adjusted and flickered to serve as warning information.

9. The flexible ureteroscope according to claim 1, 2 or 3, wherein: the temperature measuring module is connected with the control module through a connecting wire, the connecting wire penetrates through the inserting portion, the head end of the connecting wire is wrapped with a heat insulation pipe, and the near end of the connecting wire is connected with the control module after passing through the handle.