Scraping and sucking device for breast department

Abstract

The scraping and sucking device comprises a holding rod, a sucking assembly is installed at the lower end of the holding rod, a working cavity is formed in the holding rod, a diluting assembly is arranged in the working cavity, the diluting assembly comprises a built-in tube, and the built-in tube comprises a hard section and a soft section fixedly connected with the lower end of the hard section; the flexible section comprises an upper hose, a middle hose and a lower hose which are sequentially connected from top to bottom, a tissue blood mixture is extracted by utilizing the suction assembly, and the mixture firstly enters the lower hose, so that the mixture is accumulated in the lower hose; then the first one-way electromagnetic valve is closed, the second one-way electromagnetic valve is opened, normal saline enters the lower hose to conduct preliminary dilution on the mixture, the viscosity of the mixture is reduced, the liquid pump assembly pumps the normal saline to the upper extrusion bag to enable the normal saline to expand, and the flowing space of the middle hose and the upper hose is blocked; and then the extrusion bag on the upper portion supplements normal saline into the mixture as well, the mixture is diluted for the second time, and the dilution effect on the mixture is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of scrapers, in particular to a scraper for breast surgery. Background Art

[0002] For some breast tissues with necrotic or inflammatory lesions, the scraping action of the scraper can be like "shoveling" to remove these fragile tissues that have lost their normal structure. It can accurately scrape the diseased tissue while minimizing damage to the surrounding healthy tissues, which is of great significance for maintaining the normal morphology and function of breast tissue.

[0003] During the operation, the diseased tissue of the human body may secrete a large amount of pus, which has a high viscosity. When it mixes with the cut tissue debris and blood to form a relatively viscous mixture, the mixture is easy to block the suction pipe or the pores of the scraper. Once blocked, it will not only affect the normal operation of the scraper, but also may require the operation to be interrupted for cleaning, increasing the operation time and the risk to the patient.

[0004] To this end, we tried to dilute the mixture and divide it into several small mixed groups for discharge, and proposed a breast scraper to solve the above problem. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the scraper is blocked by the mixture of pus, tissue debris and blood, and to provide a scraper for breast surgery.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technology: a scraper for breast surgery: it includes a holding rod, a suction component is installed at the lower end of the holding rod, a working chamber is opened inside the holding rod, a dilution component is arranged inside the working chamber, the dilution component includes an internal tube, the internal tube includes a hard section and a soft section fixedly connected at its lower end, the soft section includes an upper hose, a middle hose and a lower hose connected in sequence from top to bottom, an extrusion bag is arranged on the outer wall of the connection between the upper hose, the middle hose and the lower hose, a reserved groove is opened on the side wall of the holding rod, a liquid guide tube is arranged inside the reserved groove, the liquid guide tube is connected to the extrusion bag through a one-way solenoid valve, the upper end of the liquid guide tube is connected to a liquid pump assembly through a liquid inlet pipe, the upper end of the hard section is connected to a suction assembly through a suction tube, the extrusion bag is connected to the soft section through a one-way solenoid valve, and the extrusion bag is filled with physiological saline.

[0007] The tissue-blood mixture is extracted by the suction assembly, and the mixture first enters the lower hose. The liquid pump assembly pumps saline into the squeezing bag below to expand its volume and compress the connection between the lower hose and the middle hose, thereby reducing the space for the mixture to pass through, causing the mixture to accumulate in the lower hose. Subsequently, the one-way solenoid valve 1 is closed and the one-way solenoid valve 2 is opened simultaneously to allow saline to enter the lower hose for preliminary dilution of the mixture, thereby reducing the viscosity of the mixture. The liquid pump assembly pumps saline into the squeezing bag above to expand it, thereby obstructing the flow space between the middle hose and the upper hose. Subsequently, the squeezing bag above also replenishes saline into the mixture for secondary dilution of the mixture, thereby further improving the dilution effect of the mixture.

[0008] As a further description of the above-mentioned breast scraper:

[0009] The lower end of the holding rod is provided with a slide groove connected to the inside of the working cavity, the lower hose is connected to the upper end of the slide groove, the upper end of the holding rod is provided with a fixed groove connected to the inside of the working cavity, and the hard section is installed in the fixed groove.

[0010] As a further description of the above-mentioned breast scraper:

[0011] The suction component includes an outer catheter threadedly connected to the bottom of the holding rod, an inner catheter is arranged inside the outer catheter, a notch groove is provided on the side wall of the inner catheter, a splicing flap is provided on the inner side of the notch groove, the splicing flap is adapted to the size of the notch groove, the upper end of the inner catheter is slidingly and sealingly connected to the inside of the slide groove, a magnetic ring 1 is provided on the upper end of the inner catheter, a floating cavity corresponding to the position of the magnetic ring 1 is provided on the side wall of the slide groove, an electromagnetic ring 1 is provided on the upper wall of the floating cavity, a sleeve section is provided at the lower end of the outer catheter, the sleeve section is made of rubber material, the sleeve section and the inner catheter are kept in a taut state, the electromagnetic ring 1 can continuously generate a magnetic field that repels the magnetic ring 1, so that the inner catheter is always closely attached to the inner wall of the outer catheter and maintains a stable working state, when the mixture blocks the inner catheter, the medical staff can control the electromagnetic ring 1 to produce an attraction to the magnetic ring 1, so that the inner catheter slides upward, thereby making the inner catheter break away from the close contact with the outer catheter, and under the action of its internal pressure, the splicing flap slightly breaks away from the notch groove, thereby expanding the space inside the inner catheter, so that the mixture inside it can flow normally.

[0012] As a further description of the above-mentioned breast scraper:

[0013] The diameters of the outer and inner tubes decrease from top to bottom, and the outer wall of the inner tube is tightly attached to the inner wall of the outer tube. The decreasing diameters can ensure that the inner tube is more tightly connected to the inner wall of the outer tube when subjected to vertical squeezing force from top to bottom.

[0014] As a further description of the above-mentioned breast scraper:

[0015] An active section is reserved at the upper end of the notch groove and the upper end of the slide groove. The length of the active section is the same as the height of the floating cavity. The active section can provide an active space for the inner catheter to move up and down.

[0016] As a further description of the above-mentioned breast scraper:

[0017] A slide is provided at the bottom end of the outer catheter, and a traction assembly is installed on the side wall of the outer catheter. The traction assembly includes a scraper slidably connected to the inside of the slide. A limiting groove corresponding to the position of the slide is provided on the side wall of the outer catheter. A connecting block is provided on the side wall of the inner catheter away from the scraper, and a traction line is fixedly connected to the connecting block. A traction ring is provided on the end of the traction line away from the connecting block, and the outer wall of the traction ring is wrapped with an anti-slip layer. During the operation, medical staff can use the traction ring to pull the traction line to drive the connecting block to slide in the limiting groove, so that the scraper slides in the slide. When fine operation is required, the scraper can be hooked with fingers to perform fine movements, avoiding damage to nerves or blood vessels caused by excessive wrist operation, thereby improving protection for patients.

[0018] As a further description of the above-mentioned breast scraper:

[0019] A second magnetic block is arranged at the upper end of the slideway, and a third magnetic block is arranged at the upper end of the scraper. The second magnetic block and the third magnetic block are arranged in a magnetic repulsion manner. When the scraper is pulled upward, the repulsion effect of the third magnetic block on the second magnetic block can be utilized, so that the third magnetic block drives the scraper to automatically reset, thereby improving the working efficiency.

[0020] As a further description of the above-mentioned breast scraper:

[0021] Anti-collision blocks are provided at the upper and lower ends of the limit groove. The anti-collision blocks are made of low-buffering performance material. When the inner catheter is blocked, the electromagnetic ring is triggered to flip the magnetic field to move the inner catheter upward. When the spliced ​​flap is out of contact with the notch groove, the traction line is pulled to make the connecting block repeatedly collide with the anti-collision blocks at the upper and lower ends to generate vibration, so that the blockage inside the inner catheter is loosened, thereby improving the efficiency of clearing the blockage.

[0022] As a further description of the above-mentioned breast scraper:

[0023] The outer wall of the gripping rod is provided with a steering bracket corresponding to the position of the traction line, and the traction line is wound around the steering bracket.

[0024] In summary, due to the use of the above-mentioned breast scraper, the beneficial effects of the present invention are:

[0025] 1. The mixture first enters the lower hose, and the liquid pump assembly pumps saline into the squeezing bag below to expand its volume and compress the connection between the lower hose and the middle hose, reducing the space for the mixture to pass through, causing the mixture to accumulate in the lower hose. Then, the one-way solenoid valve 1 is closed and the one-way solenoid valve 2 is opened to allow saline to enter the lower hose for initial dilution of the mixture, thereby reducing the viscosity of the mixture. The liquid pump assembly pumps saline into the squeezing bag above to expand it, thereby blocking the flow space between the middle hose and the upper hose. Then, the squeezing bag above also replenishes saline into the mixture for secondary dilution of the mixture, thereby further improving the dilution effect of the mixture.

[0026] 2. Electromagnetic ring 1 can continuously generate a magnetic field that repels magnetic ring 1, so that the inner catheter is always closely attached to the inner wall of the outer catheter and maintains a stable working state. When the mixture blocks the inner catheter, medical personnel can control electromagnetic ring 1 to attract magnetic ring 1, so that the inner catheter slides upward, thereby breaking away from the close contact with the outer catheter. Under the action of its internal pressure, the spliced ​​valve slightly breaks away from the notch groove, expanding the space inside the inner catheter, so that the mixture inside it can flow normally.

[0027] 3. During the operation, medical staff can use the traction ring to pull the traction line to drive the connecting block to slide inside the limit groove, so that the scraper slides inside the slide. When fine operation is required, the scraper can be hooked with fingers to perform fine movements, avoiding damage to nerves or blood vessels caused by excessive wrist operation, thereby improving protection for patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A stereoscopic diagram of a main structure provided according to an embodiment of the present invention is shown;

[0029] Figure 2 A partial cutaway stereoscopic view of a main structure provided according to an embodiment of the present invention is shown;

[0030] Figure 3 An exploded view of a grip rod provided according to an embodiment of the present invention is shown;

[0031] Figure 4 A cross-sectional perspective view of a grip rod provided according to an embodiment of the present invention is shown;

[0032] Figure 5 An exploded view of a suction component and a pulling component provided according to an embodiment of the present invention is shown;

[0033] Figure 6 A cross-sectional perspective view of a grip rod provided in an embodiment of the present invention in a preliminary diluted state is shown;

[0034] Figure 7A cross-sectional perspective view of a grip rod provided in an embodiment of the present invention in a secondary dilution state is shown;

[0035] Figure 8 A cross-sectional perspective view of a suction assembly in a normal state according to an embodiment of the present invention is shown;

[0036] Fig. 9 A cross-sectional perspective view of a suction assembly in a dredging state provided in an embodiment of the present invention is shown;

[0037] Fig.10 A cross-sectional perspective view of a pulling assembly provided in a normal state according to an embodiment of the present invention is shown;

[0038] Fig.11 A cross-sectional stereoscopic view of a pulling assembly provided according to an embodiment of the present invention in a pulling state is shown.

[0039] Legend:

[0040] 10. Holding rod; 11. Suction tube; 12. Liquid inlet tube; 13. Fixed groove; 14. Working chamber; 15. Reserved groove; 16. Slide groove; 17. Floating chamber;

[0041] 20. Suction assembly; 21. External catheter; 211. Slideway; 212. Limiting groove; 22. Internal catheter; 23. Notch groove; 24. Splicing flap; 25. Magnetic ring 1;

[0042] 30. Pulling assembly; 31. Scraper; 32. Connecting block; 33. Pulling line; 34. Pulling ring;

[0043] 40. Dilution component; 41. Hard section; 42. Soft section; 43. Extrusion bag; 44. Liquid guide tube; 45. One-way solenoid valve 1. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly describe the breast scraper in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Example 1

[0046] The present invention provides a scraper for breast surgery, please refer to Figure 1-Figure 3, including a gripping rod 10, a suction component 20 is installed at the lower end of the gripping rod 10, a working chamber 14 is opened inside the gripping rod 10, a dilution component 40 is arranged inside the working chamber 14, the dilution component 40 includes a built-in tube, the built-in tube includes a hard section 41 and a soft section 42 fixedly connected to its lower end, the soft section 42 includes an upper hose, a middle hose and a lower hose connected in sequence from top to bottom, and an extrusion bag 43 is arranged on the outer wall of the connection between the upper hose, the middle hose and the lower hose, a reserved groove 15 is opened on the side wall of the gripping rod 10, a liquid guide tube 44 is arranged inside the reserved groove 15, the liquid guide tube 44 is connected to the extrusion bag 43 through a one-way solenoid valve 1 45, the upper end of the liquid guide tube 44 is connected to the liquid pump assembly through the liquid inlet pipe 12, the upper end of the hard section 41 is connected to the suction assembly through the suction tube 11, the extrusion bag 43 is connected to the soft section 42 through a one-way solenoid valve 2, and the extrusion bag 43 is filled with physiological saline.

[0047] For details, please refer to Figure 6-Figure 7 , the tissue-blood mixture is extracted by the suction assembly, and the mixture first enters the lower hose, and the liquid pump assembly pumps saline into the squeezing bag 43 below to expand its volume and compress the connection between the lower hose and the middle hose, reducing the space for the mixture to pass through, so that the mixture accumulates in the lower hose, and then closes the one-way solenoid valve 1 45 and opens the one-way solenoid valve 2 to allow the saline to enter the lower hose to initially dilute the mixture, thereby reducing the viscosity of the mixture and improving its fluidity. The volume of the squeezing bag 43 that has discharged the saline is reduced, and the flow space of the lower hose is restored. At the same time, the liquid pump assembly pumps saline into the squeezing bag 43 above to expand it, thereby blocking the flow space between the middle hose and the upper hose, and initially diluting the When the mixture passes through the suddenly expanded area, due to the Bernoulli principle, it will flip during the upward flow and fully mix with the saline solution, thereby improving the dilution efficiency. Subsequently, the squeezing bag 43 above also adds saline solution to the mixture to dilute the mixture for the second time, further improving the dilution effect of the mixture and preventing the viscous mixture from clogging the scraper. Secondly, the movement process can maintain continuous circulation and improve work efficiency. In addition, the upper and lower squeezing bags 43 are expanded and contracted in sequence and orderly, so that the large mass of the mixture that is sucked in is divided into multiple small mass of the mixture, effectively reducing the situation where the large mass of the mixture causes blockage of the pipeline and affects the progress of the operation.

[0048] It should be added here that the liquid pump assembly and the suction assembly adopt universal accessories that are relatively common in the market.

[0049] See also Figure 3-Figure 4 A slide groove 16 connected to the inside of the working chamber 14 is opened at the lower end of the holding rod 10, and the lower hose is connected to the upper end of the slide groove 16. A fixed groove 13 connected to the inside of the working chamber 14 is opened at the upper end of the holding rod 10. A hard section 41 is installed in the fixed groove 13. The hard section 41 can improve the overall stability of the built-in tube.

[0050] Example 2

[0051] The present invention provides a scraper for breast surgery, please refer to Figure 4-Figure 5 The attraction component 20 includes an outer catheter 21 threadedly connected to the bottom of the holding rod 10, an inner catheter 22 is arranged inside the outer catheter 21, a notch groove 23 is provided on the side wall of the inner catheter 22, a splicing flap 24 is provided on the inner side of the notch groove 23, and the splicing flap 24 is adapted to the size of the notch groove 23. The upper end of the inner catheter 22 is slidingly sealed and connected to the inside of the slide groove 16, a magnetic ring 25 is provided on the upper end of the inner catheter 22, a floating cavity 17 corresponding to the position of the magnetic ring 25 is provided on the side wall of the slide groove 16, an electromagnetic ring 1 is provided on the upper wall of the floating cavity 17, and a sleeve section is provided at the lower end of the outer catheter 21. The sleeve section is made of rubber material, and the sleeve section and the inner catheter 22 are kept in a taut state.

[0052] For details, please refer to Figure 8-Figure 9 , the electromagnetic ring 1 can continuously generate a magnetic field that repels the magnetic ring 1 25, so that the inner catheter 22 is always closely attached to the inner wall of the outer catheter 21 and maintains a stable working state. When the mixture blocks the inner catheter 22, the medical staff can control the electromagnetic ring 1 to attract the magnetic ring 1 25, so that the inner catheter 22 slides upward, thereby breaking away from the close contact with the outer catheter 21. Under the action of the internal pressure, the splicing valve 24 slightly breaks away from the notch groove 23, expanding the space inside the inner catheter 22, so that the mixture inside it can flow normally. When the inner catheter 22 moves upward, the sleeve section made of rubber material can maintain a continuous sealing state with the inner catheter 22 to avoid leakage. There is no need to interrupt the surgical process. During the dredging process, the device can still be used continuously, which improves practicality. After the dredging is completed, the electromagnetic ring 1 is controlled to generate a magnetic field that repels the magnetic ring 1, so that the inner catheter 22 is re-attached to the inner wall of the outer catheter 21 to maintain the integrity of the scraper. In addition, after the operation is completed, the splicing flap 24 can be manually disassembled to expose the inner wall of the inner catheter 22, making the cleaning process simpler and the cleaning effect better.

[0053] The side walls where the notch groove 23 and the split flap 24 contact each other are both provided with magnetic strips, and the split flap 24 can be magnetically adsorbed inside the notch groove 23, thereby improving its installation efficiency.

[0054] See also Figure 5 The diameters of the outer catheter 21 and the inner catheter 22 decrease from top to bottom, and the outer wall of the inner catheter 22 is tightly attached to the inner wall of the outer catheter 21. The decreasing diameters can ensure that the inner catheter 22 is more tightly connected to the inner wall of the outer catheter 21 when subjected to squeezing force.

[0055] See also Figure 8 A movable section is provided at the upper end of the notch groove 23 and the upper end of the slide groove 16 , and the length of the movable section is the same as the height of the floating cavity 17 .

[0056] Specifically, the movable section can provide space for the inner catheter 22 to move up and down. At the same time, when the medical staff squeezes the patient with too much force with the end of the inner catheter 22, the inner catheter 22 can overcome the magnetic repulsion and move upward for a distance, effectively avoiding secondary injury to the patient caused by operational errors of the medical staff.

[0057] Example 3

[0058] The present invention provides a scraper for breast surgery, please refer to Figure 5 and Fig.10 A slideway 211 is provided at the bottom end of the outer catheter 21, and a pulling assembly 30 is installed on the side wall of the outer catheter 21. The pulling assembly 30 includes a scraper 31 slidably connected to the inside of the slideway 211. A limiting groove 212 corresponding to the position of the slideway 211 is provided on the side wall of the outer catheter 21. A connecting block 32 is provided on the side wall of the scraper 31 away from the inner catheter 22. A traction line 33 is fixedly connected to the connecting block 32. A traction ring 34 is provided at one end of the traction line 33 away from the connecting block 32, and the outer wall of the traction ring 34 is wrapped with an anti-slip layer.

[0059] For details, please refer to Fig.11 During the operation, medical staff can use the traction ring 34 to pull the traction line 33 to drive the connecting block 32 to slide inside the limiting groove 212, so that the scraper 31 slides inside the slide 211. When fine operation is required, such as scraping near nerves and blood vessels, the scraper 31 can be hooked with fingers to perform fine movements, thereby avoiding damage to nerves or blood vessels caused by excessive wrist operation and improving protection for patients. Secondly, the scraper 31 can be used to move the scraped tissue to a position closer to the lower end of the inner catheter 22, so that it can be easily sucked into the inner catheter 22, thereby improving work efficiency.

[0060] See also Figure 5 A second magnetic block is arranged at the upper end of the slide 211, and a third magnetic block is arranged at the upper end of the scraper 31. The second magnetic block and the third magnetic block are arranged in a magnetic repulsion manner. When the scraper 31 is pulled upward, the repulsion effect of the third magnetic block on the second magnetic block can be utilized, so that the third magnetic block drives the scraper 31 to automatically reset. There is no need to use a scratching action to reset the scraper 31, which improves the stability of the scraper 31 and improves the work efficiency at the same time.

[0061] Anti-collision blocks are provided at the upper and lower ends of the limiting groove 212. The anti-collision blocks are made of low-buffering performance material. When the inner catheter 22 is blocked, the electromagnetic ring is triggered to flip the magnetic field to move the inner catheter 22 upward, and the spliced ​​flap 24 is out of contact with the notch groove 23, the traction line 33 is pulled to make the connecting block 32 repeatedly collide with the anti-collision blocks at the upper and lower ends to generate vibration, so that the blockage inside the inner catheter 22 is loosened, thereby improving the efficiency of clearing the blockage.

[0062] The outer wall of the gripping rod 10 is provided with a steering bracket corresponding to the position of the traction line 33, and the traction line 33 is wound around the steering bracket.

[0063] The above description is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes to the breast scraper and its inventive concept according to the technical scope disclosed by the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A scraper for breast surgery, comprising a gripping rod (10), a suction assembly (20) being mounted at the lower end of the gripping rod (10), characterized in that: A working chamber (14) is provided inside the gripping rod (10), a dilution assembly (40) is arranged inside the working chamber (14), the dilution assembly (40) comprises an internal tube, the internal tube comprises a hard section (41) and a flexible section (42) fixedly connected at its lower end, the flexible section (42) comprises an upper hose, a middle hose and a lower hose connected in sequence from top to bottom, an extrusion bag (43) is arranged on the outer wall of the connection between the upper hose, the middle hose and the lower hose, a reserved groove (15) is provided on the side wall of the gripping rod (10), a liquid guide tube (44) is arranged inside the reserved groove (15); The liquid guide tube (44) is connected to the squeezing bag (43) through a one-way electromagnetic valve (45); the upper end of the liquid guide tube (44) is connected to a liquid pump assembly through a liquid inlet tube (12); the upper end of the hard section (41) is connected to a suction assembly through a suction tube (11); the squeezing bag (43) is connected to the soft section (42) through a one-way electromagnetic valve (45); and the squeezing bag (43) is filled with physiological saline.

2. The breast scraper according to claim 1, characterized in that: The lower end of the holding rod (10) is provided with a slide groove (16) connected to the inside of the working chamber (14); the lower hose is connected to the upper end of the slide groove (16); the upper end of the holding rod (10) is provided with a fixed groove (13) connected to the inside of the working chamber (14); and the hard section (41) is installed inside the fixed groove (13).

3. The breast scraper according to claim 2, characterized in that: The attraction assembly (20) comprises an outer conduit (21) threadedly connected to the bottom of the holding rod (10), an inner conduit (22) is arranged inside the outer conduit (21), a notch groove (23) is provided on the side wall of the inner conduit (22), a splicing flap (24) is provided on the inner side of the notch groove (23), and the splicing flap (24) is adapted to the size of the notch groove (23), the upper end of the inner conduit (22) is slidingly sealed and connected to the inside of the slide groove (16), a magnetic ring (25) is provided on the upper end of the inner conduit (22), a floating cavity (17) corresponding to the position of the magnetic ring (25) is provided on the side wall of the slide groove (16), and an electromagnetic ring (17) is provided on the upper wall of the floating cavity (17), and a sleeve section is provided at the lower end of the outer conduit (21), and the sleeve section is made of rubber material, and the sleeve section and the inner conduit (22) are kept in a taut state.

4. The breast scraper according to claim 3, characterized in that: The diameters of the outer conduit (21) and the inner conduit (22) decrease sequentially from top to bottom, and the outer wall of the inner conduit (22) is tightly attached to the inner wall of the outer conduit (21).

5. The breast scraper according to claim 3, characterized in that: A movable section is provided at the upper end of the notch groove (23) and the upper end of the slide groove (16), and the length of the movable section is the same as the height of the floating cavity (17).

6. The breast scraper according to claim 3, characterized in that: A slideway (211) is provided at the bottom end of the outer tube (21), a pulling assembly (30) is installed on the side wall of the outer tube (21), the pulling assembly (30) comprises a scraper (31) slidably connected to the inside of the slideway (211), a limiting groove (212) corresponding to the position of the slideway (211) is provided on the side wall of the outer tube (21), a connecting block (32) is provided on the side wall of the scraper (31) away from the inner tube (22), a traction line (33) is fixedly connected to the connecting block (32), a traction ring (34) is provided on one end of the traction line (33) away from the connecting block (32), and the outer wall of the traction ring (34) is wrapped with an anti-slip layer.

7. The breast scraper according to claim 6, characterized in that: A second magnetic block is arranged at the upper end of the slideway (211), and a third magnetic block is arranged at the upper end of the scraper (31). The second magnetic block and the third magnetic block are arranged in a magnetic repulsion manner.

8. The breast scraper according to claim 6, characterized in that: Anti-collision blocks are arranged at the upper and lower ends of the limiting groove (212), and the anti-collision blocks are made of a material with low buffering performance.

9. The breast scraper according to claim 6, characterized in that: The outer wall of the gripping rod (10) is provided with a steering bracket corresponding to the position of the traction line (33), and the traction line (33) is wound around the steering bracket.

Images