A temperature and pressure measuring guide wire for stone surgery

Abstract

This utility model relates to the field of temperature and pressure measuring guidewire technology, specifically a temperature and pressure measuring guidewire for stone surgery. It includes a handle, one end of which is connected to a data transmission line, and the other end of which is connected to the guidewire. The guidewire also includes a soft tip, a heat-shrinkable outer sheath, a core wire, a hypotube, a temperature and pressure sensor, and sensor wires. The end of the heat-shrinkable outer sheath is connected to the handle, and the top of the heat-shrinkable outer sheath is filled with the core wire. This utility model allows for real-time monitoring of intrarenal pelvic pressure and temperature during ureteral stone surgery. During laser lithotripsy, it allows for real-time temperature monitoring to prevent thermal damage. Medical staff can adjust the perfusion flow rate and negative pressure suction pressure according to the pressure situation to prevent excessive intrarenal pressure and damage. Simultaneously, by increasing the perfusion flow rate and negative pressure suction pressure within the intrarenal pressure range, water circulation can be accelerated, thereby improving stone clearance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of temperature and pressure measuring guide wire technology, specifically a temperature and pressure measuring guide wire for stone surgery. Background Technology

[0002] During endoscopic surgery, doctors need to monitor the pressure and temperature of the affected area in real time to ensure the surgery can proceed smoothly under appropriate pressure and temperature conditions. For example, in kidney lithotripsy, doctors need to flush water into the patient's kidneys and use a holmium laser to break up the stones. The holmium laser generates high heat during operation, and excessive pressure and temperature can harm the patient. Currently, there is no good method for monitoring pressure and temperature, and doctors can only rely on experience to perform the lithotripsy procedure.

[0003] Traditional ureteroscopic surgery cannot measure changes in renal pelvis pressure. If the renal pelvis pressure is too high, exceeding the safe threshold of 30 mmHg, it can cause serious medical accidents such as renal pelvis tissue swelling and necrosis. If the negative pressure suction is too strong, it can cause the renal pelvis space to collapse, resulting in a narrow space, blurred vision, and inability to find the stone. It can even cause renal pelvis tissue necrosis, leading to surgical failure.

[0004] Based on this, the present invention provides a guide wire for measuring temperature and pressure during stone surgery to solve the aforementioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a guide wire for measuring temperature and pressure during stone surgery, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a guidewire for measuring temperature and pressure in stone surgery, including a handle. One end of the handle is connected to a data transmission line, and the other end of the handle is connected to the guidewire. The guidewire also includes a soft tip, a heat-shrinkable outer sheath, a core wire, a thiopancreatography (THB) tube, a temperature and pressure sensor, and sensor wires. The end of the heat-shrinkable outer sheath is connected to the handle, and the top of the heat-shrinkable outer sheath is filled with a core wire. A THB tube is installed inside the heat-shrinkable outer sheath near the handle, and a temperature and pressure sensor is installed inside the THB tube. The temperature and pressure sensor is connected to the sensor wires, and a soft tip is sleeved on the outer side of the top of the heat-shrinkable outer sheath.

[0007] Preferably, the soft tip material is polyurethane.

[0008] Preferably, the heat-shrinkable outer material is polytetrafluoroethylene, and the outer side of the heat-shrinkable outer material is further coated with a hydrophilic coating.

[0009] Preferably, the core wire and the hyaluronic acid tube are both made of stainless steel or nickel-iron alloy.

[0010] Preferably, the temperature and pressure sensor, the sensor wire, and the data transmission line are electrically connected.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention allows for real-time monitoring of intrarenal pelvic pressure and temperature during ureteral stone surgery. During laser lithotripsy, temperature can be monitored in real-time to prevent thermal damage. Medical staff can adjust the perfusion flow rate and negative pressure suction pressure according to the pressure conditions to prevent excessive intrarenal pressure from causing harm. Simultaneously, by increasing the perfusion flow rate and negative pressure suction pressure within the intrarenal pressure range, water circulation can be accelerated, thereby improving stone clearance efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the temperature and pressure measuring guidewire for stone surgery of this utility model; Figure 2 This is a schematic diagram of the internal structure of the guidewire of this utility model.

[0013] Legend: 1. Handle; 2. Data transmission line; 3. Guide wire; 301. Soft tip; 302. Heat shrinkable outer sheath; 303. Core wire; 304. Hypotube; 305. Temperature and pressure sensor; 306. Sensor wire. Detailed Implementation

[0014] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0015] Please see Figures 1 to 2 This utility model proposes a temperature and pressure measuring guidewire for stone surgery, including a handle 1. One end of the handle 1 is connected to a data transmission line 2, and the other end of the handle 1 is connected to a guidewire 3. The guidewire 3 also includes a soft tip 301, a heat-shrinkable outer sheath 302, a core wire 303, a hysteresis tube 304, a temperature and pressure sensor 305, and a sensor wire 306. The end of the heat-shrinkable outer sheath 302 is connected to the handle 1. The top of the heat-shrinkable outer sheath 302 is filled with the core wire 303. The hysteresis tube 304 is installed inside the heat-shrinkable outer sheath 302 on the side near the handle 1. The temperature and pressure sensor 305 is installed inside the hysteresis tube 304 and connected to the sensor wire 306. The soft tip 301 is sleeved on the outer side of the top of the heat-shrinkable outer sheath 302.

[0016] It should also be noted that the soft tip 301 is made of polyurethane, the heat-shrinkable outer skin 302 is made of polytetrafluoroethylene, the heat-shrinkable outer skin 302 is also coated with a hydrophilic coating, the core wire 303 and the hyaluronic acid tube 304 are both made of stainless steel or nickel-iron alloy, and the temperature and pressure sensor 305, the sensor wire 306 and the data transmission line 2 are electrically connected. In practical applications, the soft tip 301 is made of polyurethane, the heat-shrinkable outer sheath 302 is made of polytetrafluoroethylene, and the outermost layer is coated with a nano-hydrophilic coating XZ-GT01 to ensure the lubrication of the guidewire. The core wire 303 and the hypotube 304 are made of stainless steel or nickel-iron alloy. The hypotube 304 is rotary-cut to ensure the flexibility of the guidewire. There is a groove in the hypotube 304 within 10 cm of the tip, where a thermo-barometry sensor 305 is built in to monitor the intrarenal temperature and pressure in real time. The sensor wire 306 of the thermo-barometry sensor 305 is integrated into the handle 1 along the inner wall of the hypotube 304 to transmit monitoring data.

[0017] In specific implementation, in practical applications, the data transmission line 2 is connected to the device host and calibrated before use. During ureteroscopic lithotripsy, the temperature and pressure measuring guidewire 3 is placed in the renal pelvis to monitor the intrarenal pressure and temperature in real time. Intraoperative data can be monitored in real time, and the intrarenal pelvis pressure can be displayed on the host device to facilitate medical staff to obtain information on the surrounding temperature during laser stone fragmentation to prevent thermal damage. During negative pressure stone aspiration, the intrarenal pressure is obtained in a timely manner, thereby adjusting the perfusion flow rate and negative pressure parameters to ensure that the intrarenal pressure is within the safe threshold while increasing the stone clearance efficiency of the stone removal surgery with appropriate perfusion flow rate and negative pressure parameters.

[0018] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0019] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A guidewire for measuring temperature and pressure in stone surgery, comprising a handle (1), characterized in that, One end of the handle (1) is connected to a data transmission line (2), and the other end of the handle (1) is connected to a guide wire (3). The guide wire (3) also includes a soft tip (301), a heat-shrinkable outer sheath (302), a core wire (303), a sodium hypochlorite tube (304), a temperature and pressure sensor (305), and a sensor wire (306). The end of the heat-shrinkable outer sheath (302) is connected to the handle (1). The top of the heat-shrinkable outer sheath (302) is filled with a core wire (303). The inside of the heat-shrinkable outer sheath (302) near the handle (1) is equipped with a sodium hypochlorite tube (304). The temperature and pressure sensor (305) is installed inside the sodium hypochlorite tube (304). The temperature and pressure sensor (305) is connected to the sensor wire (306). The soft tip (301) is sleeved on the outside of the top of the heat-shrinkable outer sheath (302).

2. The guide wire for measuring temperature and pressure during stone surgery according to claim 1, characterized in that, The soft tip (301) is made of polyurethane.

3. The guide wire for measuring temperature and pressure during stone surgery according to claim 1, characterized in that, The heat-shrinkable outer skin (302) is made of polytetrafluoroethylene, and the outer side of the heat-shrinkable outer skin (302) is also coated with a hydrophilic coating.

4. The guide wire for measuring temperature and pressure during stone surgery according to claim 1, characterized in that, The core wire (303) and the hysteresis tube (304) are both made of stainless steel or nickel-iron alloy.

5. The guide wire for measuring temperature and pressure during stone surgery according to claim 1, characterized in that, The temperature and pressure sensor (305), sensor wire (306), and data transmission line (2) are electrically connected.

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