Calculus taking device for urology department

Abstract

The utility model relates to the technical field of medical instruments, in particular to a calculus taking device for the urology department, which comprises a sleeve, a connecting sleeve is fixedly connected to the bottom end of the sleeve, handles are fixedly mounted on two sides of the bottom end of the connecting sleeve, a connecting plate is fixedly mounted inside the sleeve, and the inside of the sleeve is divided into a collecting cavity and a working cavity through the connecting plate. And the collecting cavity is arranged at the upper part and is communicated with the opening at the upper end of the sleeve. According to the calculus taking device for the urology department, when the top end of the sleeve moves to the lithotripsy position, firstly, gas in a cleaning head is exhausted through a gas pipe, a cleaning ball is shrunk, a micro electric push rod is started to drive the cleaning ball to move forwards to the position behind lithotripsy, then the cleaning ball is expanded through inflation, and the micro electric push rod drives the cleaning ball to move backwards; therefore, the broken stones can be pushed into the collecting cavity, and the collection of the broken stones is completed.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a urological stone removal device. Background Technology

[0002] Kidney stones are solid masses that form in the ducts or cavities of hollow organs (such as the kidneys, ureters, gallbladder, or bladder) of the human or animal body. They are mainly composed of inorganic salts or organic matter and generally have a core composed of sloughed epithelial cells, bacterial clumps, parasite eggs or bodies, fecal matter, or foreign bodies. Inorganic salts or organic matter are then deposited layer by layer on top of the core. Kidney stones can cause ductal obstruction, affecting the drainage of fluids from the affected organ and causing symptoms such as pain, bleeding, or secondary infections. Some existing non-invasive stone removal devices break up stones inside the body and then wash them out. However, the human body not only contains fragmented stones, but the extraction process can easily cause harm to the body.

[0003] Patent application number 202320323898.0 discloses a urological stone removal device, including a cannula with a circular opening at the front end. A matching hemispherical body is fitted to the front end of the cannula, and the interior of the hemispherical body has a hemispherical cavity. This invention uses the hemispherical body and the circular opening at the front end of the cannula to fit together. Then, under the action of the pressing tube and the circular plate pressing the return spring, the hemispherical body and the front end of the cannula are in an open state, which facilitates the grabbing of stones in the urethra and collecting them inside the cannula. After grabbing, the pressing rod is released, and under the return spring, the hemispherical body and the front end of the cannula are closed. The collection cavity formed between the hemispherical body and the cannula is larger than the traditional collection cavity closed by two hemispherical bodies, which makes it easier to grab and collect a large number of fragments of stones in the urethra.

[0004] The device has some shortcomings in use. For example, when the circular plate compresses the reset spring, it drives the hemispherical body to move back and forth. When collecting gravel, the top of the hemispherical body can easily come into direct contact with the gravel as it moves forward, pushing the gravel into the depths of the urethra. This results in incomplete stone removal and fails to meet people's needs. Utility Model Content

[0005] The purpose of this invention is to provide a urological stone removal device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A urological stone removal device includes a cannula, a connecting sleeve fixedly connected to the bottom end of the cannula, handles fixedly installed on both sides of the bottom end of the connecting sleeve, a connecting plate fixedly installed inside the cannula, and the interior of the cannula divided into a collection chamber and a working chamber by the connecting plate. The collection chamber is located at the top and communicates with the upper opening of the cannula. An installation tube is fixedly installed at the center of the connecting plate to connect the collection chamber and the working chamber. A connecting rod is slidably installed inside the installation tube, and a cleaning head is fixedly installed at the top of the connecting rod. The cleaning head seals the opening of the cannula. A drive assembly is installed inside the working chamber to drive the extension and retraction of the connecting rod. A lubrication chamber is opened inside the inner wall of the cannula. Multiple outlet holes are opened on the top wall of the lubrication chamber to communicate with the outside, and multiple outlet holes are opened on the side of the lubrication chamber to communicate with the outside.

[0008] Preferably, the drive assembly includes two miniature electric actuators, both of which are fixedly installed inside the working chamber. A support plate is fixedly installed at the top of each miniature electric actuator, and the support plate is fixedly connected to the bottom of the connecting rod.

[0009] Preferably, the cleaning head is an elastic airbag, and an air tube is installed inside the working chamber. One end of the air tube is connected to the cleaning head, and the other end of the air tube extends to the outside of the connecting sleeve. An air injection port is fixedly installed at the other end of the air tube.

[0010] Preferably, a valve is installed on the outer surface of the air pipe below the connecting sleeve.

[0011] Preferably, a liquid pipe is also installed inside the working chamber. One end of the liquid pipe is connected to the inside of the lubrication chamber, and the other end of the liquid pipe extends to the bottom of the connecting sleeve and is equipped with a liquid injection port. A valve is installed on the other end of the liquid pipe.

[0012] Preferably, the connecting sleeve is made of silicone.

[0013] Compared with the prior art, this utility model provides a urological stone removal device, which has the following features:

[0014] Beneficial effects:

[0015] 1. In this urological stone removal device, when the tip of the cannula moves to the stone fragmentation site, the gas inside the cleaning head is first discharged through the trachea, the cleaning ball shrinks, and by activating the micro electric push rod, the cleaning ball is moved forward to the rear of the stone fragmentation. Then, by inflating the cleaning ball, the micro electric push rod moves the cleaning ball backward, which can push the stone fragmentation into the collection chamber, thus completing the collection of the stone fragmentation.

[0016] 2. This urological stone removal device reduces the size of the cleaning ball to prevent it from contacting the stones as it moves forward, thus pushing the stones deeper into the urethra and affecting subsequent stone removal. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the sleeve of this utility model;

[0019] Figure 3 This is a schematic diagram of the extended cleaning head structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the sleeve of this utility model.

[0021] In the diagram: 1. Sleeve; 2. Connecting plate; 3. Mounting tube; 4. Connecting rod; 5. Cleaning head; 6. Support plate; 7. Miniature electric push rod; 8. Air pipe; 9. Lubrication chamber; 10. Liquid outlet hole one; 11. Liquid outlet hole two; 12. Liquid pipe; 13. Valve one; 14. Valve two; 15. Handle; 16. Connecting sleeve. Detailed Implementation

[0022] Please see Figures 1-4 A urological stone removal device includes a cannula 1, with a connecting sleeve 16 fixedly connected to the bottom end of the cannula 1. Handles 15 are fixedly installed on both sides of the bottom end of the connecting sleeve 16 for easy handheld use by medical personnel. A connecting plate 2 is fixedly installed inside the cannula 1, dividing the interior of the cannula 1 into a collection chamber and a working chamber. The collection chamber is located at the top and communicates with the upper opening of the cannula 1. An installation tube 3 is fixedly installed at the center of the connecting plate 2, connecting the collection chamber and the working chamber. A connecting rod 4 is slidably installed inside the installation tube 3, and a [missing information - likely a device or component] is fixedly installed at the top of the connecting rod 4. Cleaning head 5 seals the opening of cannula 1. When cannula 1 is inserted into the patient's urethra, cleaning head 5 seals the opening of cannula 1, which can form a spherical structure at the front end of cannula 1. This facilitates the insertion of cannula 1 and reduces friction between cannula 1 and the inner wall of the urethra, improving patient comfort. The working chamber is equipped with a drive component to drive the telescopic movement of connecting rod 4. A lubrication chamber 9 is opened inside the inner wall of cannula 1. The top wall of lubrication chamber 9 has multiple liquid outlet holes 10 communicating with the outside. The side of lubrication chamber 9 has multiple liquid outlet holes 11 communicating with the outside.

[0023] When in use, lubricant is first added to the lubrication chamber 9. The lubricant can flow out through the outlet hole 10 and outlet hole 11 at the front end of the sleeve 1, which facilitates lubrication of the device when the sleeve 1 is inserted into the urethra and prevents the sleeve 1 from scratching the urethra. When the top of the sleeve 1 moves to the stone fragments, the cleaning ball 5 moves back and forth to facilitate the collection of the stones.

[0024] The drive assembly includes two miniature electric push rods 7, which are fixedly installed inside the working chamber. A support plate 6 is fixedly installed at the top of the miniature electric push rod 7, and the support plate 6 is fixedly connected to the bottom of the connecting rod 4. By activating the miniature electric push rod 7, the cleaning ball 5 can be easily driven to reciprocate and collect the gravel.

[0025] The cleaning head 5 is an elastic airbag. An air tube 8 is installed inside the working chamber. One end of the air tube 8 is connected to the cleaning head 5, and the other end of the air tube 8 extends to the outside of the connecting sleeve 16. An air inlet is fixedly installed at the other end of the air tube 8. When the top of the sleeve 1 moves to the stone fragments, the air inside the cleaning head 5 is first discharged through the air tube 8, and the cleaning ball 5 shrinks to prevent it from contacting the stone fragments when moving forward, thus pushing the stone fragments deep into the urethra and affecting subsequent stone fragment removal. By activating the micro electric push rod 7, the cleaning ball 5 is moved forward to move behind the stone fragments. Then, by inflating the cleaning ball 5, it is moved backward by the micro electric push rod 7, which pushes the stone fragments into the collection chamber, thus completing the collection of the stone fragments.

[0026] Furthermore, a valve 13 is installed on the outer surface of the air pipe 8 below the connecting sleeve 16 to control the expansion and contraction of the cleaning ball 5.

[0027] The working chamber is equipped with a liquid pipe 12. One end of the liquid pipe 12 is connected to the inside of the lubrication chamber 9, and the other end of the liquid pipe 12 extends to the bottom of the connecting sleeve 16 and is equipped with a liquid injection port. A valve 14 is installed on the other end of the liquid pipe 12. When in use, lubricating fluid is first added to the inside of the lubrication chamber 9 through the liquid pipe 12 to facilitate lubrication of the device.

[0028] Furthermore, the connecting sleeve 16 is made of silicone, which has a certain degree of flexibility, making it easy to bend and preventing the connecting sleeve 16 from being too stiff and causing discomfort to the patient.

[0029] Working principle: When using this urological stone removal device, lubricating fluid is first added to the lubrication chamber 9 through the fluid tube 12. The lubricating fluid can flow out through the first fluid outlet 10 and the second fluid outlet 11 at the front end of the sleeve 1, which facilitates lubrication of the device when the sleeve 1 is inserted into the urethra and prevents the sleeve 1 from scratching the urethra. When the top of the sleeve 1 moves to the stone fragments, the air inside the cleaning head 5 is first discharged through the air tube 8, and the cleaning ball 5 shrinks. By activating the micro electric push rod 7, the cleaning ball 5 is moved forward to move behind the stone fragments. Then, by inflating the cleaning ball 5, the cleaning ball 5 is expanded. The micro electric push rod 7 moves the cleaning ball 5 backward, which can push the stone fragments into the collection chamber, thus completing the collection of the stone fragments.

Claims

1. A urological stone removal device, comprising a cannula (1), wherein a connecting sleeve (16) is fixedly connected to the bottom end of the cannula (1), and handles (15) are fixedly installed on both sides of the bottom end of the connecting sleeve (16), characterized in that: A connecting plate (2) is fixedly installed inside the sleeve (1). The inside of the sleeve (1) is divided into a collection chamber and a working chamber by the connecting plate (2). The collection chamber is located at the top and is connected to the upper opening of the sleeve (1). An installation tube (3) is fixedly installed at the center of the connecting plate (2) to connect the collection chamber and the working chamber. A connecting rod (4) is slidably installed inside the installation tube (3). A cleaning head (5) is fixedly installed at the top of the connecting rod (4). The cleaning head (5) seals the opening of the sleeve (1). A driving assembly is installed inside the working chamber to drive the extension and retraction of the connecting rod (4). A lubrication chamber (9) is opened inside the inner wall of the sleeve (1). Multiple liquid outlet holes (10) are opened on the top wall of the lubrication chamber (9) to communicate with the outside. Multiple liquid outlet holes (11) are opened on the side of the lubrication chamber (9) to communicate with the outside.

2. The urological stone removal device according to claim 1, characterized in that: The drive assembly includes two miniature electric push rods (7), both of which are fixedly installed inside the working chamber. A support plate (6) is fixedly installed at the top of each miniature electric push rod (7), and the support plate (6) is fixedly connected to the bottom end of the connecting rod (4).

3. The urological stone removal device according to claim 1, characterized in that: The cleaning head (5) is an elastic airbag. An air tube (8) is installed inside the working chamber. One end of the air tube (8) is connected to the cleaning head (5), and the other end of the air tube (8) extends to the outside of the connecting sleeve (16). An air injection port is fixedly installed at the other end of the air tube (8).

4. A urological stone removal device according to claim 3, characterized in that: The air pipe (8) is provided with a valve (13) installed on its outer surface below the connecting sleeve (16).

5. A urological stone removal device according to claim 1, characterized in that: The working chamber is also equipped with a liquid pipe (12). One end of the liquid pipe (12) is connected to the inside of the lubrication chamber (9). The other end of the liquid pipe (12) extends to the bottom of the connecting sleeve (16) and is equipped with a liquid injection port. A valve (14) is installed on the other end of the liquid pipe (12).

6. A urological stone removal device according to claim 1, characterized in that: The connecting sleeve (16) is made of silicone.

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