Visual guiding device for peritoneal dialysis catheterization

By designing a visual guidance device, which uses a CMOS imaging sensor and LED lights to image and clean the field of view inside the peritoneal cavity, the problem of difficulty in confirming the placement position of the peritoneal dialysis catheter is solved, thus improving the accuracy and safety of catheter placement.

CN223640694UActive Publication Date: 2025-12-09THE 960TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
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Patent Information

Application Number
CN202422857693.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-12-09
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

Existing peritoneal dialysis catheter placement methods cannot effectively confirm the placement location of the peritoneal dialysis catheter, resulting in a high risk of complications. In particular, the blind puncture method cannot observe the condition of the abdominal organs and makes it difficult to ensure that the end of the peritoneal dialysis catheter accurately reaches the Douglas pouch.

Method used

A visualization guidance device was designed, comprising a CMOS imaging sensor, an LED light group, and a ring-shaped flushing nozzle. It transmits images via a WIFI or Bluetooth module, is malleable, and can image and clean the field of view within the peritoneal cavity to ensure accurate placement of the peritoneal dialysis catheter tip into the Douglas pouch.

Benefits of technology

This method enables precise positioning of the peritoneal dialysis catheter, reduces the risk of complications such as catheter drift and omental entanglement, and improves the accuracy and safety of catheter placement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a visual guiding device for peritoneal dialysis catheterization, and particularly relates to the technical field of surgical instruments. A visual guiding device for peritoneal dialysis catheterization comprises a control device, a transmission device and a guiding device, the control device is connected with the transmission device, and the transmission device is connected with the guiding device. The beneficial effects of the utility model lie in that: the utility model discloses an LED lamp group and CMOS imaging sensor can be used for the visceral organ imaging in the abdominal cavity, through WIFI module or bluetooth signal transceiver module transmission to remote terminal equipment, the outer lens group is designed with independent spray subassembly to be responsible for cleaning the outer lens group, guarantee the clear view, and the waterproofness is strong, and it is convenient to use. Mist, blood, tissue fluid, adipose tissue and the like of an outer lens group can be washed away by controlling a water pump, the diameter of the device is about 2.5 mm, the device is compatible with a commercially available common peritoneal dialysis catheter, and the guiding device can be bent by a certain radian and kept at the radian so as to ensure that the tail end of the peritoneal dialysis catheter can be placed into a Douglas recess.
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Description

Technical Field

[0001] This utility model mainly relates to the field of surgical instrument technology, specifically a visual guidance device for peritoneal dialysis catheter placement. Background Technology

[0002] Currently, the main renal replacement therapy methods for uremia patients include hemodialysis, peritoneal dialysis, and kidney transplantation. Compared to the other two methods, peritoneal dialysis has advantages such as home treatment, low cost, and ease of operation, providing great convenience for uremia patients. Peritoneal dialysis treatment requires the initial placement of a peritoneal dialysis catheter. Currently, commonly used catheter placement methods are divided into three categories: laparoscopic surgery, conventional open surgery, and percutaneous puncture. Laparoscopic surgery is expensive and inconvenient to carry out at the grassroots level, while conventional open surgery and percutaneous puncture are all blind placements, making it impossible to observe the condition of the abdominal organs and effectively confirm whether the peritoneal dialysis catheter is placed in the most appropriate position (the end to the Douglas's pouch). Therefore, the probability of complications such as catheter drift, omental entanglement, and poor drainage is relatively high in the later stages. Therefore, this utility model provides a visual guidance device for peritoneal dialysis catheter placement. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a visual guidance device for peritoneal dialysis catheter placement, and a peritoneal dialysis catheter placement guide needle that has visualization and wireless transmission functions and a certain degree of elasticity and shapeability.

[0004] To achieve the above objectives, this utility model employs the following technical solution:

[0005] A visual guidance device for peritoneal dialysis catheter placement includes a control device, a transmission device, and a guidance device, wherein the control device is connected to the transmission device, and the transmission device is connected to the guidance device.

[0006] The control device includes a battery, a control module, and a water tank. The water tank is connected to a water pump, and the water pump is connected to one end of a water pipe. The water tank has a water inlet for receiving water. The control module is equipped with a WIFI module or a Bluetooth signal transceiver module, and the control module is electrically connected to the WIFI module or the Bluetooth signal transceiver module.

[0007] The guiding device includes an annular water pipe, a CMOS imaging sensor, an endoscope assembly, an LED light assembly, an exoscope assembly, and an annular flushing nozzle. The CMOS imaging sensor is located in the middle of the transmission device. The endoscope assembly, LED light assembly, and exoscope assembly are arranged sequentially to the left of the CMOS imaging sensor. An annular flushing nozzle is located on the left side of the exoscope assembly. The annular water pipe is connected to the other end of a water pipe, and a water passage is formed inside the cavity of the annular water pipe.

[0008] The battery is externally connected to a Type-C charging port.

[0009] The LED light group is a ring-shaped LED light ring, which is equipped with a light ring and multiple LEDs.

[0010] The transmission device includes a hollow frame and an outer skin, the outer skin wrapping the frame, and the hollow frame being made of bendable aluminum metal material.

[0011] Compared with the existing technology, the beneficial effects of this utility model are:

[0012] This invention features an LED light assembly and a CMOS imaging sensor capable of imaging intra-abdominal organs. The imaging data is transmitted to a remote terminal device via a WIFI module or Bluetooth transceiver module. The endoscope assembly is designed with an independent spray component to clean it, ensuring a clear field of view. It is also highly waterproof. By controlling the water pump, it can wash away fog, blood, tissue fluid, and adipose tissue from the endoscope assembly. It also has a certain degree of plasticity, allowing the guide device to be bent at a certain arc and maintained at that arc to ensure that the end of the peritoneal dialysis catheter can be placed into the Douglas pouch. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the internal cross-sectional structure of the present invention;

[0014] Figure 2 This is a partial structural schematic diagram of the present invention.

[0015] The following are the reference numerals in the attached diagram: 1. Control device; 2. Transmission device; 3. Guiding device; 4. Battery; 5. Control module; 6. Water tank; 7. Water pump; 8. Water pipe; 9. Water inlet; 10. Annular water pipe; 11. CMOS imaging sensor; 12. Endoscope assembly; 13. LED light assembly; 14. Exoscope assembly; 15. Annular rinsing nozzle; 16. Type-C charging port; 17. Light ring; 18. LED light; 19. Hollow frame; 20. Outer skin. Detailed Implementation

[0016] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0017] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the prior art. At the same time, in order to clearly express the connection relationship and working principle between the components, the drawings in the specification are organized and drawn in the form of simplified diagrams of mechanism movement, which will not be described in detail here.

[0018] like Figure 1 As shown, a visual guidance device for peritoneal dialysis catheter placement includes a control device 1, a transmission device 2, and a guidance device 3. The control device 1 is connected to the transmission device 2, and the transmission device 2 is connected to the guidance device 3.

[0019] The control device includes a battery 4, a control module 5, and a water tank 6. The water tank 6 is connected to a water pump 7, and the water pump 7 is connected to one end of a water pipe 8. The water tank 6 has a water inlet 9 for receiving water and replenishing sterile water for injection. The control module 5 is equipped with a WIFI module or a Bluetooth signal transceiver module, and the control module 5 is electrically connected to the WIFI module or the Bluetooth signal transceiver module.

[0020] The guiding device 3 includes an annular water pipe 10, a CMOS imaging sensor 11, an endoscope assembly 12, an LED light assembly 13, an exoscope assembly 14, and an annular flushing nozzle 15. The CMOS imaging sensor 11 is located in the middle of the guiding device 3. The endoscope assembly 12, the LED light assembly 13, and the exoscope assembly 14 are arranged sequentially on the left side of the CMOS imaging sensor 11. The annular flushing nozzle 15 is located on the left side of the exoscope assembly 14. The annular water pipe 10 is connected to the other end of the water pipe 8, and a water passage is formed inside the cavity of the annular water pipe 10.

[0021] Specifically, the control device, transmission device, and guiding device have the same overall diameter, approximately 2.5mm, and are compatible with currently available peritoneal dialysis catheters. The guiding device is externally equipped with an endoscope assembly and a ring-shaped flushing nozzle. The ring-shaped flushing nozzle is responsible for cleaning the endoscope assembly to ensure a clear field of view. The endoscope assembly has a 500W CMOS sensor with a fixed focal length, positioned 2cm in front of the guidewire, and can meet 720p video transmission requirements. The ring-shaped flushing nozzle is connected to a ring-shaped water passage. The water passage connecting the ring-shaped water passage is connected to the water pump at the end of the guidewire through a water pipe in the intermediate transmission device. The control module controls the water pump to flush away the fog, blood, and tissue fluid from the endoscope assembly. The LED light assembly is responsible for illumination, ensuring that the field of view within 3cm in front of the guidewire is illuminated.

[0022] Furthermore, the battery 4 is externally connected to the type-c charging port 16.

[0023] Furthermore, the LED light group 13 is a ring-shaped LED light ring, and the LED light group 13 is provided with a light ring 17 and multiple LED lights 18.

[0024] Furthermore, the transmission device 2 includes a hollow frame 19 and an outer skin 20, the outer skin 20 wrapping the frame 19, and the hollow frame 19 being made of bendable aluminum metal material.

[0025] Working principle:

[0026] The battery powers the device and is equipped with a Type-C interface for charging. The water bladder and water pump supply water and power to the ring-shaped water spray system. The WIFI module or Bluetooth signal transceiver module is responsible for signal transmission and reception. The guide device is equipped with a CMOS imaging sensor, as well as an endoscope group, LED light group and exoscope group, which can transmit imaging data to the control module and transmit it to the remote terminal device through the WIFI module or Bluetooth signal transceiver module.

Claims

1. A visual guidance device for peritoneal dialysis catheter placement, comprising a control device (1), a transmission device (2), and a guiding device (3), characterized in that, The control device (1) is connected to the transmission device (2), and the transmission device (2) is connected to the guide device (3); The control device includes a battery (4), a control module (5), and a water tank (6). The water tank (6) is connected to a water pump (7), and the water pump (7) is connected to one end of a water pipe (8). The water tank (6) has a water inlet (9) for receiving water. The control module (5) is equipped with a WIFI module or a Bluetooth signal transceiver module, and the control module (5) is electrically connected to the WIFI module or the Bluetooth signal transceiver module. The guiding device (3) includes an annular water pipe (10), a CMOS imaging sensor (11), an endoscope assembly (12), an LED light assembly (13), an exoscope assembly (14), and an annular flushing nozzle (15). The CMOS imaging sensor (11) is located in the middle of the guiding device (3). The endoscope assembly (12), the LED light assembly (13), and the exoscope assembly (14) are arranged sequentially on the left side of the CMOS imaging sensor (11). An annular flushing nozzle (15) is arranged on the left side of the exoscope assembly (14). The annular water pipe (10) is connected to the other end of the water pipe (8). A water passage is formed inside the cavity of the annular water pipe (10).

2. The visual guidance device for peritoneal dialysis catheter placement according to claim 1, characterized in that, The battery (4) is externally connected to a type-c charging port (16).

3. The visual guidance device for peritoneal dialysis catheter placement according to claim 1, characterized in that, The LED light group (13) is a ring-shaped LED light ring, and the LED light group (13) is provided with a light ring (17) and multiple LED lights (18).

4. The visual guidance device for peritoneal dialysis catheter placement according to claim 1, characterized in that, The transmission device (2) includes a hollow frame (19) and an outer skin (20), the outer skin (20) wrapping the frame (19), and the hollow frame (19) being made of bendable aluminum metal material.