Urinary surgery calculus grabber convenient to use
By introducing a micro camera and a driveable jaw structure into the urological stone grabber, the problem of inconvenience in observation and grasping of stones is solved, and the stable fixation and safe removal of stones are achieved.
Patent Information
- Application Number
- CN202422110856.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-29
AI Technical Summary
The existing urology stone grabber is not convenient for observation and grasping stones, and the jaws lack stability, which can easily lead to the stone drop.
A gripper including a catheter, a threaded rod, a slider, a fixing ring, a jaw and a micro camera was designed. The position of the stone is observed through the micro camera, and the jaw movement is driven by the threaded rod and a rotary disk, combining the rubber sleeve to increase friction and achieve stable grip.
It realizes convenient observation and stable grasp of stones, reduces the risk of stone dropping and improves the safety and stability of operations.
Smart Images

Figure CN223143556U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, and particularly relates to a urological lithotripsy forceps which is convenient to use. Background Art
[0002] Solid masses formed in the lumen of a duct in the human or animal body or in the lumen of a hollow organ. They are mainly found in the gallbladder, bladder, and renal pelvis, and can also be seen in the lumens of the pancreatic duct, salivary gland duct, etc. The stone is composed of inorganic salts or organic matter. Generally, there is a core in the stone, which is composed of exfoliated epithelial cells, bacterial masses, parasite eggs or worms, fecal masses or foreign bodies. Inorganic salts or organic matter are deposited layer by layer on the core. Due to the different affected organs, the formation mechanism, composition, shape, texture, and impact on the body of the stone are all different. Generally speaking, the stone can cause lumen obstruction, affect the discharge of fluid in the affected organ, and cause symptoms such as pain, bleeding, or secondary infection.
[0003] When applying for a patent, it was found through retrieval that the Chinese patent with the patent number CN202122156070.4: A urological lithotripsy forceps which is convenient to use, including an installation cylinder, an electric drive mechanism is arranged above the installation cylinder, first mounting seats are fixedly connected to both side walls below the installation cylinder, a connecting arm is rotatably connected to the first mounting seat, and a linkage mechanism is arranged between the two connecting arms; when the device is in use, it is not convenient to observe and grasp the stone, and only two clamping jaws are used to grasp the stone, lacking stability, and the stone is likely to fall during the rising process of the device. Content of the Utility Model
[0004] Aiming at the deficiencies of the prior art, the utility model provides a urological lithotripsy forceps which is convenient to use, and solves the problem of being inconvenient to observe and grasp the stone.
[0005] The utility model also provides the above-mentioned urological lithotripsy forceps which is convenient to use, including: a catheter, a threaded rod is connected to the catheter in a threaded manner, one end of the threaded rod is fixedly connected to a connecting rod, and the other end is fixedly connected to a sliding rod. A fixed ring is slidably connected to the sliding rod, a limiting ring is fixedly connected to the inner side of the fixed ring, an annular baffle is fixedly connected to the sliding rod on the left side of the fixed ring, a clamping jaw is fixedly connected to the left side of the fixed ring, there are three clamping jaws, and they are evenly distributed. The clamping jaw is integrally bow-shaped and is divided into a sliding part, a pressing part, and a clamping part. A micro camera is fixedly connected to the left end of the sliding rod, and the micro camera is located in the middle of the clamping jaws. The other end of the connecting rod is fixedly connected to a turntable.
[0006] According to the above-mentioned urological lithotripsy forceps which is convenient to use, an anti-slip pad is arranged at one end of the catheter close to the connecting rod on the outer side of the catheter.
[0007] According to the described urological lithotripsy forceps that are easy to use, the sliding part is located inside the catheter, the extrusion part is located at the left end of the catheter, and a rubber sleeve is fixedly sleeved on the clamping part.
[0008] According to the described urological lithotripsy forceps that are easy to use, the material of the clamping jaws is elastic metal.
[0009] According to the described urological lithotripsy forceps that are easy to use, the miniature camera has functions of taking pictures and lighting.
[0010] According to the described urological lithotripsy forceps that are easy to use, the size of the annular baffle is the same as that of the limit ring.
[0011] The utility model has the following beneficial effects:
[0012] In the utility model, by providing clamping jaws and a miniature camera at the left end of the catheter, the miniature camera transmits the picture inside the body to the screen, which is convenient for observing the position of the stone. Then, by rotating the turntable, it drives the threaded rod to rotate, thereby causing the sliding rod to move outwards. At this time, the annular baffle on the sliding rod contacts the limit ring and squeezes it to move outwards, and at the same time drives the clamping jaws to move outwards. At this time, the extrusion part squeezes the catheter and causes the clamping part to contract, fixing and removing the stone. Under the action of the rubber sleeve, the friction between the clamping jaws and the stone is increased, making its stability better, and at the same time avoiding damage to the body caused by the clamping jaws.
[0013] The additional aspects and advantages of the utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the utility model. Description of the Drawings
[0014] The following further illustrates the utility model in conjunction with the drawings and embodiments;
[0015] Figure 1 It is a structural diagram of a urological lithotripsy forceps that are easy to use according to the utility model;
[0016] Figure 2 It is a sectional view of a urological lithotripsy forceps that are easy to use according to the utility model;
[0017] Figure 3 It is an internal structural diagram of a urological lithotripsy forceps that are easy to use according to the utility model;
[0018] Figure 4 It is a structural diagram of the fixing ring of a urological lithotripsy forceps that are easy to use according to the utility model.
[0019] Legend Explanation:
[0020] 1. catheter; 11. anti-slip pad; 2. threaded rod; 3. sliding rod; 31. annular baffle; 4. connecting rod; 41. turntable; 5. fixing ring; 51. limiting ring; 6. clamping claw; 61. sliding part; 62. extruding part; 63. clamping part; 7. micro camera. DETAILED DESCRIPTION
[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0022] Reference Figures 1-4 The utility model is a convenient-to-use urological stone grabber, which includes a catheter 1, a threaded rod 2 is connected to the inner thread of the catheter 1, one end of the threaded rod 2 is fixedly connected to a connecting rod 4, and the other end is fixedly connected to a sliding rod 3, and the other end of the connecting rod 4 is fixedly connected to a rotating disk 41, and an anti-skid pad 11 is provided at one end of the outer side of the catheter 1 near the connecting rod 4, and the anti-skid pad 11 is a hand-held part;
[0023] A fixing ring 5 is slidably connected to the slide bar 3, a limiting ring 51 is fixedly connected to the inner side of the fixing ring 5, an annular baffle 31 is fixedly connected to the slide bar 3 on the left side of the fixing ring 5, the annular baffle 31 is the same size as the limiting ring 51, the fixing ring 5 can be driven to move by the annular baffle 31 and the limiting ring 51, a clamping claw 6 is fixedly connected to the left side of the fixing ring 5, the clamping claw 6 is made of elastic metal, there are three clamping claws 6, and they are evenly distributed, the clamping claw 6 is arched as a whole, and is divided into a sliding part 61, an extruding part 62 and a clamping part 63, the sliding part 6 1 is located in the catheter 1, the squeezing part 62 is located at the left end of the catheter 1, and a rubber sleeve is fixedly sleeved on the clamping part 63. Under the action of the rubber sleeve, the friction between the clamping jaw 6 and the stone is increased to make it more stable and avoid the clamping jaw 6 from causing harm to the body. The left end of the slide bar 3 is fixedly connected with a micro camera 7, which can transmit the captured image to the external screen. The micro camera 7 is located in the middle of the clamping jaw 6. The micro camera 7 has the functions of video recording and lighting. The micro camera 7 is used to observe the position of the stone.
[0024] Working principle: When in use, start the micro camera 7, then insert the catheter 1 into the body through the incision. The micro camera 7 transmits the picture inside the body to the screen. By manipulating the catheter 1, align the clamping part 63 on the jaw 6 with the stone, and then rotate the turntable 41. The turntable 41 drives the threaded rod 2 to rotate, so that the sliding rod 3 moves outwards. At this time, the annular baffle 31 on the sliding rod 3 contacts the limit ring 51 and squeezes it to move outwards, and at the same time drives the jaw 6 to move outwards. At this time, the extrusion part 62 squeezes the catheter 1 and makes the clamping part 63 contract to fix and remove the stone. Under the action of the rubber sleeve, the friction between the jaw 6 and the stone is increased, making its stability better, and at the same time avoiding damage to the body caused by the jaw 6.
[0025] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art to which it pertains, various changes can be made without departing from the gist of the present invention.
Claims
1. A urological lithotripter that is convenient to use, characterized in that, Comprising: A catheter (1), internally threaded connection with a threaded rod (2) within the catheter (1), one end of the threaded rod (2) fixedly connected to a connecting rod (4), and the other end fixedly connected to a sliding rod (3). A fixed ring (5) is slidably connected to the sliding rod (3). The inner side of the fixed ring (5) is fixedly connected with a limiting ring (51). A circular baffle (31) is fixedly connected to the sliding rod (3) on the left side of the fixed ring (5). The left side of the fixed ring (5) is fixedly connected with a jaw (6). There are three jaws (6), which are evenly distributed. The jaw (6) is integrally bow-shaped and is divided into a sliding part (61), a squeezing part (62), and a clamping part (63). The left end of the sliding rod (3) is fixedly connected with a micro camera (7). The micro camera (7) is located at the middle position of the jaw (6). The other end of the connecting rod (4) is fixedly connected with a turntable (41).
2. The urological lithotripter grabber convenient to use according to claim 1, characterized in that, One end of the outer side of the catheter (1) close to the connecting rod (4) is provided with an anti-slip pad (11).
3. The urological lithotriptor for easy use according to claim 2, characterized in that, The sliding part (61) is located within the catheter (1), the squeezing part (62) is located at the left end of the catheter (1), and a rubber sleeve is fixedly sleeved on the clamping part (63).
4. The urological lithotripter grabber convenient for use according to claim 3, wherein, The material of the jaw (6) is elastic metal.
5. The urological calculus grabber convenient to use according to claim 4, characterized in that, The micro camera (7) has functions of photographing and lighting.
6. The urological lithotripter gripper convenient for use according to claim 5, characterized in that The size of the circular baffle (31) is the same as that of the limiting ring (51).
Citation Information
Patent Citations
Urinary surgery calculus grabber convenient to use
CN215914792U