Urethral stone extractor

Abstract

The utility model relates to the technical field of urethral calculus removing, in particular to a urethral calculus removing device which comprises a catheter, a guide wire, a mounting block and two clamping arc plates. The guide wire positioning device has the advantages that opening and closing of the sliding grooves can be controlled by pushing and pulling the sliding plate through the top plate, then the positioning teeth can flexibly slide in the fixing plate through the sliding grooves, when the sliding plate slides along the sliding grooves and is tightly attached to the guide wire, the sliding plate can be clamped between the two positioning teeth to fix the guide wire, and then positioning of the guide wire is achieved; according to the calculus removing device, the position of the clamping arc plate can be fixed to clamp the calculus, the situation that the guide wire slides back and forth after the calculus is clamped by the clamping arc plate is avoided, then the calculus is more stably clamped by the clamping arc plate, calculus removing is more accurate and rapid, and pain of a patient in the calculus removing operation process can be greatly relieved.

Description

Technical Field

[0001] The utility model relates to a urethra stone removal device, in particular to a urethra stone removal device, belonging to the technical field of urethra stone removal applications. Background Art

[0002] The urethra, as a natural cavity connecting the human urinary system to the outside world, is an important channel for excreting metabolic waste. Urinary stones are excreted from the body through urine, and the urethra is a necessary passage. Due to the size of the patient's stone fragments and the natural physiological curvature of the urethra (common in men, with a large natural curvature), stones are easily trapped or retained. At the same time, due to its natural connection with the outside world, the urethra is easily infected by external bacteria, leading to urethritis, making it easy for stones to attach and precipitate (common in women with shorter urethras). If not intervened in time, it will cause urethral obstruction and cause pain. Therefore, a urethral stone remover is needed to perform stone removal surgery to remove large and small stones in the urethra in a timely manner to alleviate the pain caused by stones to patients.

[0003] Publication (Announcement) No. CN201870688U discloses a urethral stone remover, which belongs to the field of medical device technology. The technical solution of this utility model is: it includes a handle and a steel wire, and is characterized in that a cylindrical groove is provided at the front end of the steel wire, and a soft rubber pad is provided on the inner surface of the front section of the cylindrical groove. The utility model has a simple structure and is easy to operate when treating urethral stones for patients, saving time and effort, and reducing the difficulty of work for medical staff. The cylindrical groove cannot clamp the stone during stone removal, resulting in the stone easily falling off from the lithotripter during the stone removal process, slow stone removal speed, low accuracy, and increased pain for patients during the stone removal process.

[0004] Existing urethral stone lithotripters have major defects. During the process of removing stones, the current urethral stone lithotripters cannot clamp the stones when pulling them out. The stones are very easy to fall out of the lithotripter, and the stone removal speed is slow. During the stone removal process, the current urethral stone lithotripters cannot adapt to stones of different sizes, and the flexibility of stone removal is poor. Summary of the Invention

[0005] In view of the problems in the prior art, the utility model provides a urethral stone remover.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a urethral stone remover, comprising a catheter, a guide wire, a mounting block and two clamping arc plates, the interior of the catheter is a hollow structure, the guide wire is located inside the catheter, one end of the catheter is welded to the top of the mounting block, the two clamping arc plates are respectively arranged on both sides of the mounting block, and the top ends of the two clamping arc plates are movably connected to the two sides of the mounting block.

[0007] Preferably, the guide wire passes through the mounting block, and a bottom block is provided at the bottom end of the guide wire, and the bottom end of the guide wire is fixedly connected to the bottom block.

[0008] Preferably, adjusting rods are provided at both ends of the bottom block, cavities are opened at the upper ends of the two clamping arc plates, and connecting rods are provided at both ends of the two adjusting rods and on both sides of the mounting block, one end of the two adjusting rods is respectively located inside the two cavities, and the ends of the two adjusting rods located inside the cavities are hinged to the two clamping arc plates through connecting rods, the ends of the two adjusting rods away from the clamping arc plates are hinged to the two ends of the bottom block through connecting rods, and the top ends of the two clamping arc plates are hinged to the two ends of the mounting block through connecting rods.

[0009] Preferably, a fixing plate is fixed at the end of the catheter away from the mounting block, a guide hole is opened in the middle of the fixing plate, the guide wire passes through the guide hole, the guide wire slides inside the guide hole, a slide groove is opened on one side of the guide hole, a slide plate is installed in the slide groove, the cross-section of the slide plate is an "I"-shaped structure, the slide plate slides along the slide groove, and a number of positioning teeth are arranged at equal distances on the top of the end of the guide wire away from the bottom block.

[0010] Preferably, a pull plate is provided on the top of the guide wire, a pull ring is provided on the top of the pull plate, and a top plate is provided on the end of the slide away from the guide wire, and the cross section of the top plate is a transverse "L"-shaped structure.

[0011] Preferably, positioning grooves are provided on both sides of the slide groove, and sliding blocks are provided on both sides of one end of the slide plate close to the positioning teeth.

[0012] Beneficial effects of the utility model:

[0013] (1) The utility model can control the opening and closing of the slide by pushing and pulling the slide plate with the top plate, thereby facilitating the flexible sliding of the positioning teeth inside the fixed plate through the slide groove, and when the slide plate slides along the slide groove and sticks to the guide wire, the slide plate can be stuck between the two positioning teeth to fix the guide wire, thereby achieving the positioning of the guide wire, so as to fix the position of the clamping arc plate to clamp the stone, avoiding the guide wire sliding back and forth after the clamping arc plate clamps the stone, thereby making the clamping arc plate more stable when clamping the stone, and more accurate and fast when removing the stone, which can greatly reduce the pain of the patient during the stone removal operation.

[0014] (2) The utility model drives the bottom block up and down by pulling the pull ring to drive the guide wire at the bottom of the pull plate. The moving bottom block drives the two clamping arc plates by driving the two adjusting rods, and then the top ends of the two clamping arc plates are hinged to the two sides of the mounting block respectively. On the one hand, the two clamping arc plates can flexibly adjust the angles on both sides of the mounting block respectively, so that the two clamping arc plates cooperate with each other to realize the clamping function and clamp the stones faster. On the other hand, in the process of pulling the bottom block by the guide wire, the angles of the two clamping arc plates can be flexibly adjusted, so as to facilitate the clamping of stones of different sizes, making the stone removal work more flexible and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 For this utility model Figure 1 Enlarged schematic diagram of area A in the middle.

[0018] Figure 3 This is a schematic diagram of the positional relationship among the fixing plate, guide hole and slide groove of the present invention.

[0019] Figure 4 This is a schematic diagram of the cooperation between the slide plate and the top plate of the utility model.

[0020] Figure 5 For this utility model Figure 1 Enlarged schematic diagram of area B in the middle.

[0021] In the figure: 1. catheter; 2. guide wire; 201. positioning tooth; 3. fixing plate; 301. slide plate; 302. top plate; 303. slide groove; 304. guide hole; 305. positioning groove; 306. slider; 4. mounting block; 5. bottom block; 6. clamping arc plate; 7. cavity; 8. adjusting rod; 9. connecting rod; 10. pull plate; 11. pull ring. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-Figure 5 As shown, a urethral stone remover includes a catheter 1, a guide wire 2, a mounting block 4 and two clamping arc plates 6. The interior of the catheter 1 is a hollow structure, and the guide wire 2 is located inside the catheter 1. The guide wire 2 passes through the catheter 1 and slides back and forth inside the catheter 1, so that the guide wire 2 can flexibly move up and down inside the catheter 1, making the guide wire 2 more flexible during use. One end of the catheter 1 is welded to the top of the mounting block 4, and the two clamping arc plates 6 are respectively arranged on both sides of the mounting block 4. The top ends of the two clamping arc plates 6 are respectively movably connected to the two sides of the mounting block 4, so that the angles of the two clamping arc plates 6 are conveniently adjusted. The two clamping arc plates 6 cooperate with each other to clamp stones of different sizes, making it more flexible and efficient for doctors to use the lithotripsy when performing stone removal surgery.

[0024] The guide wire 2 passes through the mounting block 4, and a bottom block 5 is provided at the bottom end of the guide wire 2. The bottom end of the guide wire 2 is fixedly connected to the bottom block 5. The bottom block 5 is provided for shielding, thereby preventing the guide wire 2 from falling off from the inside of the catheter 1 during the sliding process inside the catheter 1, thereby extending the service life of the stone remover.

[0025] Adjusting rods 8 are provided at both ends of the bottom block 5, cavities 7 are provided at the upper ends of the two clamping arc plates 6, and connecting rods 9 are provided at both ends of the two adjusting rods 8 and on both sides of the mounting block 4. One end of the two adjusting rods 8 is located inside the two cavities 7, and the ends of the two adjusting rods 8 located inside the cavities 7 are hinged to the two clamping arc plates 6 through the connecting rods 9, and the ends of the two adjusting rods 8 away from the clamping arc plates 6 are hinged to the two ends of the bottom block 5 through the connecting rods 9. The top ends of the two clamping arc plates 6 are hinged to the two ends of the mounting block 4 through the connecting rods 9, and the guide wire 2 moves up and down inside the catheter 1 When the guide wire 2 slides up and down inside the mounting block 4, it can pull the bottom block 5. The moving bottom block 5 drives the two adjusting rods 8 to pull the two clamping arc plates 6, and then the top ends of the two clamping arc plates 6 are hinged to the two sides of the mounting block 4 respectively. The two clamping arc plates 6 can flexibly adjust the angles on both sides of the mounting block 4, so that the two clamping arc plates 6 cooperate with each other to realize the clamping function, and then clamp the stones to perform the stone removal work. In the process of pulling the bottom block 5 by the guide wire 2, the angles of the two clamping arc plates 6 can be flexibly adjusted, so as to facilitate the clamping of stones of different sizes, making the stone removal work more flexible and efficient.

[0026] A fixing plate 3 is fixed to the end of the catheter 1 away from the mounting block 4, a guide hole 304 is opened in the middle of the fixing plate 3, the guide wire 2 passes through the guide hole 304, the guide wire 2 slides inside the guide hole 304, a slide groove 303 is opened on one side of the guide hole 304, a slide plate 301 is installed in the slide groove 303, the cross section of the slide plate 301 is an "I"-shaped structure, the slide plate 301 slides along the slide groove 303, and a plurality of positioning teeth 201 are equidistantly arranged on the top of the end of the guide wire 2 away from the bottom block 5, and the sliding slide plate 301 can control the slide groove 303. The opening and closing of the positioning teeth 201 facilitates the flexible sliding of the positioning teeth 201 inside the fixed plate 3 through the sliding groove 303, and after the guide wire 2 is pulled to a suitable position and the clamping arc plate 6 clamps the stone, the slide plate 301 slides along the sliding groove 303 and adheres to the guide wire 2, and is stuck between the two positioning teeth 201 to fix the guide wire 2, thereby realizing the positioning of the guide wire 2, avoiding the guide wire 2 from sliding back and forth after the clamping arc plate 6 clamps the stone, and making the clamping arc plate 6 more stable when clamping the stone, and more accurate and quick when removing the stone, thereby reducing the pain of the patient during the stone removal operation.

[0027] A pull plate 10 is provided on the top of the guide wire 2, and a pull ring 11 is provided on the top of the pull plate 10. The pull ring 11 can facilitate the doctor to pull the pull plate 10 with his fingers, and a top plate 302 is provided on the end of the slide plate 301 away from the guide wire 2. The cross-section of the top plate 302 is a horizontal "L"-shaped structure. The top of the top plate 302 contacts the pull plate 10, thereby widening the distance between the fixed plate 3 and the pull plate 10, avoiding the fixed plate 3 from being close to the pull plate 10, resulting in the doctor being unable to separate from the fixed plate 3 when pulling the pull plate 10 and unable to clamp the stone, thereby clamping the stone more quickly and accurately, and the doctor can pull the slide plate 301 back and forth through the top plate 302, thereby blocking the positioning tooth 201 more conveniently.

[0028] Positioning grooves 305 are provided on both sides of the slide groove 303, and sliders 306 are provided on both sides of the end of the slide plate 301 close to the positioning tooth 201. When the slide plate 301 slides along the slide groove 303, the slider 306 slides inside the positioning groove 305, thereby preventing the slide plate 301 from falling off from the inside of the slide groove 303, making it more convenient for the doctor to operate and making it more convenient to remove the stone.

[0029] When in use, first, one end of the clamping arc plate 6 of the lithotripter is inserted into the patient's urethra from the urethral opening, so that the clamping arc plate 6 is close to the stone. The doctor pulls the pull ring 11 with his index finger and pulls the top plate 302 with his other hand to pull the slide plate 301 to control the slide groove 303 to open. The doctor drives the guide wire 2 at the bottom of the pull plate 10 by pulling the pull ring 11, and then slides up and down inside the catheter 1. The sliding guide wire 2 drives the bottom block 5 to move up and down. The moving bottom block 5 drives the two adjusting rods 8 to pull the two clamping arc plates 6, and then the top ends of the two clamping arc plates 6 are respectively hinged to the two sides of the mounting block 4. The two clamping arc plates 6 can be flexibly adjusted at the two sides of the mounting block 4, so that the two clamping arc plates 6 cooperate with each other to realize the clamping function, thereby clamping the stone. While removing the stone, the angles of the two clamping arc plates 6 can be flexibly adjusted in the process of pulling the bottom block 5 by the guide wire 2, so as to facilitate the clamping of stones of different sizes, making the stone removal work more flexible and efficient.

[0030] Then, after the two clamping arc plates 6 clamp the stone, the doctor pushes the slide plate 301 through the top plate 302, and the slide plate 301 slides along the slide groove 303 and adheres to the guide wire 2, and is stuck between the two positioning teeth 201 to fix the guide wire 2, thereby achieving the positioning of the guide wire 2, fixing the position of the clamping arc plates 6 to clamp the stone, and preventing the guide wire 2 from sliding back and forth after the clamping arc plates 6 clamp the stone, thereby making the clamping arc plates 6 more stable when clamping the stone, and making the stone removal more accurate and fast, thereby reducing the pain of the patient during the stone removal operation;

[0031] Finally, after clamping the stone, the doctor pulls the stone out of the urethra by pulling the pull ring 11, completing the stone removal work. The stone removal device can quickly and accurately remove the stone from the urethra, greatly reducing the patient's pain during the operation.

[0032] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A urethral stone removal device, comprising a catheter (1), a guide wire (2), a mounting block (4) and two clamping arc plates (6), characterized in that: The interior of the catheter (1) is a hollow structure, the guide wire (2) is located inside the catheter (1), one end of the catheter (1) is welded to the top end of the mounting block (4), the two clamping arc plates (6) are respectively arranged on both sides of the mounting block (4), and the top ends of the two clamping arc plates (6) are respectively movably connected to the two sides of the mounting block (4); A fixing plate (3) is fixed to one end of the catheter (1) away from the mounting block (4), a guide hole (304) is provided in the middle of the fixing plate (3), the guide wire (2) passes through the guide hole (304), a slide groove (303) is provided on one side of the guide hole (304), a slide plate (301) is installed in the slide groove (303), the cross section of the slide plate (301) is an "I"-shaped structure, the slide plate (301) slides along the slide groove (303), and a plurality of positioning teeth (201) are provided at equal distances on the top of the end of the guide wire (2) away from the bottom block (5); A pull plate (10) is provided on the top of the guide wire (2), a pull ring (11) is provided on the top of the pull plate (10), a top plate (302) is provided on the end of the slide plate (301) away from the guide wire (2), and the cross section of the top plate (302) is a transverse "L"-shaped structure; Positioning grooves (305) are provided on both sides of the slide groove (303), and sliding blocks (306) are provided on both sides of one end of the slide plate (301) close to the positioning tooth (201).

2. The urethral stone remover according to claim 1, characterized in that: The guide wire (2) passes through the mounting block (4), and a bottom block (5) is provided at the bottom end of the guide wire (2), and the bottom end of the guide wire (2) is fixedly connected to the bottom block (5).

3. The urethral stone remover according to claim 2, characterized in that: Adjustment rods (8) are provided at both ends of the bottom block (5), cavities (7) are provided at the upper ends of the two clamping arc plates (6), and connecting rods (9) are provided at both ends of the two adjustment rods (8) and both sides of the mounting block (4). One end of the two adjustment rods (8) is respectively located inside the two cavities (7), and the ends of the two adjustment rods (8) located inside the cavities (7) are respectively hinged to the two clamping arc plates (6) through the connecting rods (9). The ends of the two adjustment rods (8) away from the clamping arc plates (6) are respectively hinged to the two ends of the bottom block (5) through the connecting rods (9), and the top ends of the two clamping arc plates (6) are respectively hinged to the two ends of the mounting block (4) through the connecting rods (9).

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