CN217014208U - Fiber ureteroscope guide sheath and guide system - Google Patents

Abstract

The application provides a fiber ureteroscope guide sheath (1), includes: an elongated main body (11) that can be placed over the fiberureteroscope (2); a first pressure sensor (12) disposed on an outer surface of the body (11), the first pressure sensor (12) being adapted to measure a pressure generated between the body (11) and an inner wall of the ureter. In addition, the application also provides a fiber ureteroscope guide system (3). The application provides a fibre ureteroscope guide sheath and bootstrap system can avoid causing the condition that the guide sheath tears the ureter to take place because of the ureter diameter is too narrow, reduce operation complication, can also help the art person to monitor the perfusate temperature through the renal pelvis backward flow (thereby indirectly acquire the renal pelvis temperature), the art person can be according to finding the temperature adjustment rubble frequency and the perfusate velocity of flow, keep the low temperature environment in the renal pelvis, avoid the urinary system damage that the high fever brought, increase the operation security.

Description

Fiberoptic ureteroscope guide sheath and guide system

technical field

The utility model relates to the field of medical instruments, in particular to a fiber ureteroscope guide sheath and a guide system used for ureteroscope laser lithotripsy in urology.

Background technique

Ureteroscopic laser lithotripsy is a popular urological surgery in the world at present. It is based on the rapid development of "visualization" technology and endoscopic technology. It has been widely used in clinical due to its advantages.

The working principle of ureteroscopic laser lithotripsy is that the operator inserts the fiberoptic ureteroscope guide sheath into the pre-dilated uretero-renal pelvis system under the guidance of the guide wire, and operates the electronic ureteroscope in the ureter guide sheath to explore the ureter and the renal pelvis. stone. However, due to individual differences in the anatomical structure of patients, it is possible that the diameter of the ureteral guide sheath is too large relative to the ureter. In this case, the ureteral guide sheath is forcibly placed, and the large lumen pressure will cause different degrees of damage to the ureter, and even lead to serious damage to the ureter. Perforation and avulsion, resulting in postoperative ureteral stricture and other conditions. In addition, the heat generated by the laser during the operation increases the temperature of the perfusate in the renal pelvis. If the surgeon cannot accurately judge the temperature in the renal pelvis and adjust the flow rate of the perfusate, damage to the urinary system may occur. In addition, if the intraoperative perfusion fluid is not well controlled, it may cause an increase in the intra-renal pelvic pressure, resulting in the formation of renal pelvis hypertension, leading to an increased incidence of postoperative complications such as infection.

Utility model content

In view of the problems existing in the background technology, the present utility model provides a fiberoptic ureteroscope guide sheath, including:

an elongated body that can be sleeved on a fiberoptic ureteroscope;

The first pressure sensor is arranged on the outer surface of the main body, and the first pressure sensor is used to measure the pressure generated between the main body and the inner wall of the ureter.

In some embodiments of the present invention, the fiberoptic ureteroscope guide sheath includes: a temperature sensor disposed on the inner surface of the main body, and the temperature sensor is used to measure the temperature of the perfusate returning through the renal pelvis.

In some embodiments of the present invention, the fiberoptic ureteroscope guide sheath includes: a U-shaped clip disposed at the front end of the main body; the first pressure sensor and the temperature sensor are opposed by the U-shaped clip fixed on the inner and outer surfaces of the main body.

In some embodiments of the present invention, the fiberoptic ureteroscope guide sheath includes: a first wire arranged in the U-shaped clip, the first wire is connected to the first pressure sensor and the temperature sensor .

In some embodiments of the present invention, the first wire has a connection end extending along the length direction of the main body, and the connection end is attached with a waterproof material, so as to fit the outer surface of the main body, so the connection end is attached with a waterproof material. The first wire is used to connect the first pressure sensor and the temperature sensor with external equipment.

In addition, the utility model also provides a fiberoptic ureteroscope guiding system, which is characterized in that it includes:

In the fiberoptic ureteroscope guide sheath and fiberoptic ureteroscope as described above, a channel for perfusion fluid backflow is formed between the elongated body and the fiberoptic ureteroscope.

In some embodiments of the present invention, one end of the fiberoptic ureteroscope is formed with a protruding end that can reach the renal pelvis via the ureter; the surface of the protruding end is provided with a second pressure sensor for measuring the pressure of the perfusate in the renal pelvis.

In some embodiments of the present invention, a waterproof material is attached to the surface of the second pressure sensor.

In some embodiments of the present invention, the fiberoptic ureteroscope guiding system is characterized in that it comprises: a second wire arranged in the fiber ureter; the second pressure sensor is connected to the second wire through the second wire. External device connection

The fiberoptic ureteroscope guiding sheath and guiding system provided by the utility model can effectively help the operator to monitor the pressure generated by the main body of the guiding sheath and the inner wall of the ureter during the process of inserting the main body of the guiding sheath into the renal pelvis, and can avoid the avulsion of the guiding sheath due to the narrow diameter of the ureter. If the situation occurs, reduce surgical complications and increase surgical safety. The fiberoptic ureteroscope guide sheath can also help the operator to monitor the temperature of the perfusate returning through the renal pelvis (thus obtaining the temperature of the renal pelvis indirectly). , to avoid urinary tract injury caused by high fever and increase the safety of surgery.

Description of drawings

1 is a side cross-sectional view of a guide sheath provided by an embodiment of the present invention;

Fig. 2 is a partial enlarged view of the U-shaped clip in Fig. 1;

3 is a transverse cross-sectional view of a guide sheath provided by an embodiment of the present invention;

4 is a cross-sectional view of a fiberoptic ureteroscope according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view of a fiberoptic ureteroscope guiding system (a combination of a fiberoptic ureteroscope and a guide sheath) provided by an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings and specific embodiments. While exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to facilitate a thorough understanding of the present invention and to fully convey the concept of the present invention to those skilled in the art.

As shown in FIGS. 1 to 3 , this embodiment provides a fiberoptic ureteroscope guide sheath 1 , which includes an elongated body 11 and a first pressure sensor 12 . The elongated body 11 can be sleeved on the fiberoptic ureteroscope 2 (described in detail later). The first pressure sensor 12 is disposed on the outer surface of the main body 11, and can measure the pressure between the main body 11 of the introducer sheath 1 and the inner wall of the ureter when the main body 11 of the introducer sheath 1 enters the renal pelvis through the ureter.

Further, the fiberoptic ureteroscope guide sheath 1 further includes a temperature sensor 13 disposed on the inner surface of the main body 11 , and the temperature sensor 13 is used to measure the temperature of the perfusate returning through the renal pelvis.

Based on the above structure, the fiberoptic ureteroscope guide sheath 1 can effectively help the operator to monitor the pressure generated by the main body 11 of the guide sheath 1 and the inner wall of the ureter during the process of placing the guide sheath 1 into the renal pelvis, and can avoid the avulsion of the ureter due to the narrow diameter of the ureter It can reduce surgical complications and increase surgical safety. The fiberoptic ureteroscope guide sheath 1 can also help the operator to monitor the temperature of the perfusate flowing back through the renal pelvis (thus obtaining the temperature of the renal pelvis indirectly), and the operator can adjust the frequency of lithotripsy and the flow rate of the perfusate according to the measured temperature to maintain the low temperature in the renal pelvis environment, avoid urinary tract damage caused by high fever, and increase the safety of surgery.

Further, the fiberoptic ureteroscope guide sheath 1 includes a U-shaped clip 14 disposed at the front end of the main body 11 , and the first pressure sensor 12 and the temperature sensor 13 are oppositely fixed on the guide sheath 1 by the U-shaped clip 14 . The inner and outer surfaces of the main body 11 (as shown in Figures 2 and 3).

Further, this embodiment further includes a first wire 15 disposed in the U-shaped clip 14 , and the first wire 15 is connected to the first pressure sensor 12 and the temperature sensor 13 .

Further, in this embodiment, the first wire 15 has a connecting end 15a extending along the length direction of the main body 11 of the guide sheath 1, and the connecting end 15a is attached with a waterproof material to make it fit on the outer surface of the main body 11. A lead 15 is used to connect the first pressure sensor 12 and the temperature sensor 13 with external equipment.

The fiberoptic ureteroscope guide sheath 1 provided in this embodiment is a disposable product, and the first pressure sensor 12 and the temperature sensor 13 are packaged at the front end of the main body 11 of the guide sheath 1 .

FIG. 4 shows the structure of the fiberoptic ureteroscope 2 described above. The fiberoptic ureteroscope 2 is elongated and can be sheathed in the main body 11 of the introducer sheath 1 . One end of the fiberoptic ureteroscope 2 is formed with a protruding end 21a (the lower end of FIG. 4 ) that can reach the renal pelvis through the ureter. The second pressure sensor 22 is disposed on the surface of the protruding end 21a, and is used to measure the pressure of the perfusion fluid in the renal pelvis.

Further, a waterproof material is attached to the surface of the second pressure sensor 22, so that the first pressure sensor 12 and the fiberoptic ureteroscope body 11 are packaged into one body.

Furthermore, a second wire 23 is disposed inside the fiberoptic ureteroscope 2 , and the second pressure sensor 22 is connected to external devices (eg, a processing device and a display device) through the second wire 23 .

Based on the above structure, the second pressure sensor 22 of the fiberoptic ureteroscope 2 can indirectly obtain the pressure on the renal pelvis by measuring the pressure of the perfusate in the renal pelvis, and the operator can know the value of the second pressure sensor 22 to avoid the perfusion caused by excessive pressure. The fluid carries bacteria back into the bloodstream and avoids organ damage (reduces the chance of complications) due to excessive pressure in the renal pelvis.

As shown in FIG. 5 , another embodiment provides a fiberoptic ureteroscope guiding system 3, comprising the fiberoptic ureteroscope guide sheath 1 and the fiberoptic ureteroscope 2 as described above, a main body 11 of the elongated guide sheath 1 and a fiberoptic ureter A channel for the backflow of the perfusate is formed between the mirrors 2 .

The fiberoptic ureteroscope guidance system 3 provided in this embodiment can display the values acquired by the pressure sensor and the temperature sensor on an external device, so that the operator can detect abnormalities in time according to the displayed values, and can only rely on the operator to overcome the blind operation. The difficulties brought about by experience are beneficial to the popularization of flexible ureteroscopic holmium laser lithotripsy in primary hospitals.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to be limiting. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those of ordinary skill in the art that any modification or equivalent replacement of the technical solutions of the present invention will not depart from the spirit and scope of the technical solutions of the present invention. Included in the scope of the claims of the present invention.

Claims (9)

1. a fiberoptic ureteroscope guide sheath (1), characterized in that it comprises: an elongated body (11) that can be sleeved on the fiberoptic ureteroscope (2); A first pressure sensor (12) arranged on the outer surface of the main body (11), the first pressure sensor (12) is used to measure the pressure generated between the main body (11) and the inner wall of the ureter. 2. The fiberoptic ureteroscope guide sheath (1) according to claim 1, characterized in that, comprising: A temperature sensor (13) is arranged on the inner surface of the main body (11), and the temperature sensor (13) is used to measure the temperature of the perfusate returning through the renal pelvis. 3. The fiberoptic ureteroscope guide sheath (1) according to claim 2, characterized in that, comprising: a U-shaped clip (14) arranged at the front end of the main body (11); The first pressure sensor (12) and the temperature sensor (13) are fixed oppositely on the inner and outer surfaces of the main body (11) by the U-shaped clip (14). 4. The fiberoptic ureteroscope guide sheath (1) according to claim 3, characterized in that, comprising: A first wire (15) arranged in the U-shaped clip (14), the first wire (15) is connected to the first pressure sensor (12) and the temperature sensor (13). 5. fiberoptic ureteroscope guide sheath (1) according to claim 4 is characterized in that: The first wire (15) has a connection end (15a) extending along the length direction of the main body (11), and a waterproof material is attached to the connection end (15a) so as to fit the main body (11) The first wire (15) is used to connect the first pressure sensor (12) and the temperature sensor (13) with external equipment. 6. Fiberoptic ureteroscope guidance system (3), is characterized in that, comprises: The fiberoptic ureteroscope guide sheath (1) and the fiberoptic ureteroscope (2) according to any one of claims 1 to 5, wherein the elongated main body (11) and the fiberoptic ureteroscope (2) are formed between There are channels for perfusate return. 7. The fiberoptic ureteroscope guiding system (3) according to claim 6, characterized in that: One end of the fiberoptic ureteroscope (2) is formed with a protruding end (21a) capable of reaching the renal pelvis through the ureter; The surface of the protruding end (21a) is provided with a second pressure sensor (22) for measuring the pressure of the perfusion fluid in the renal pelvis. 8. The fiberoptic ureteroscope guiding system (3) according to claim 7, characterized in that: A waterproof material is attached to the surface of the second pressure sensor (22). 9. The fiberoptic ureteroscope guiding system (3) according to claim 8, characterized in that it comprises: a second wire (23) arranged in the fiberoptic ureteroscope (2); The second pressure sensor (22) is connected to an external device through the second wire (23).

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