Stripping device

Abstract

The present application belongs to the technical field of medical devices, and discloses a stripper, which comprises a pipe body, a flow channel formed between a first end and a pipe outlet, a plurality of mutually isolated cavities separated by the flow channel, each cavity being provided with a medicine inlet hole and a medicine outlet hole, a plurality of medicine inlet joints arranged in sequence at the first end and connected in one-to-one correspondence with the medicine inlet holes, and a sealing head detachably connected to the second end. The first end of the pipe body is closed, the second end is open, the interior of the pipe body is provided with a plurality of mutually isolated cavities, each cavity is provided with an independent medicine outlet hole, and anesthetic can be input into the interior of the pipe body through the medicine inlet hole connected with the medicine inlet joint. After the anesthetic flows out of the pipe outlet, the pipe outlet is blocked by the sealing head. At this time, when the anesthetic continues to be input into the medicine inlet hole, the anesthetic can only flow out of the medicine outlet hole. During the stripping operation, the anesthetic can perform multi-region anesthesia in the intravenous blood vessels, and the stripping and anesthesia can be performed simultaneously.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more particularly to a stripper. Background Technology

[0002] Varicose veins in the lower extremities are a common surgical condition. The main causes are congenitally weak blood vessel walls or prolonged periods of maintaining the same posture with little change, leading to blood pooling in the lower limbs. Over time, this damages the venous valves, resulting in high venous pressure and the symptom of bulging veins on the skin's surface. Varicose veins most commonly occur in the lower extremities. Studies have found that approximately 10%-15% of adult men and 20%-25% of adult women develop symptomatic varicose veins, accounting for over 90% of vascular diseases. This condition is more prevalent among those who stand for long periods or engage in heavy physical labor.

[0003] The main clinical treatments for varicose veins include laser therapy, drug therapy, and inversion stripping using a vein stripper. Among these, inversion stripping is the most commonly used method for treating varicose veins in clinical practice because it is minimally invasive, leaves a hidden wound, has a short healing time, and is thorough and less prone to recurrence.

[0004] However, currently, anesthesia and stripping need to be performed separately during surgery, making the procedure cumbersome and placing an additional burden on patients. Summary of the Invention

[0005] The purpose of this invention is to provide a stripping device to solve the problem that anesthesia and stripping need to be performed separately.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A peeler, comprising:

[0008] The tube has a closed first end and an open second end with a tube outlet. A flow channel is formed between the first end and the tube outlet. The flow channel is divided into multiple isolated cavities, and each cavity extends along the length of the tube. Each cavity has a drug inlet near the first end and a drug outlet between the first end and the second end.

[0009] Multiple drug inlet connectors are arranged sequentially at the first end and connected to the drug inlet holes one by one; the drug inlet connectors are used to input liquid medicine; and

[0010] A cap is detachably connected to the second end, and the cap, when connected to the second end, can seal the pipe outlet.

[0011] The tube is closed at one end and open at the other. The tube has multiple isolated cavities inside, each with an independent drug outlet. Anesthetic can be injected into the tube by connecting the drug inlet connector through the inlet. When the anesthetic flows out of the tube outlet, the outlet is sealed with a cap. If the anesthetic is continued to be injected into the inlet, it will only flow out of the drug outlet. During the stripping surgery, the anesthetic can provide multi-area anesthesia within the vein, allowing stripping and anesthesia to be performed simultaneously.

[0012] As a preferred embodiment of the above-mentioned stripper, the second end of the tube body is defined as a first region between it and the nearest drug inlet connector, and the drug outlet holes are arranged at equal intervals between the first region, dividing the first region equally along its length.

[0013] The first region of the tube is the main part that extends into the blood vessel. Drug outlet holes are evenly spaced in the first region, which can deliver the drug evenly along the length of the first region to achieve a better anesthetic effect.

[0014] As a preferred embodiment of the above-mentioned stripper, the tube body is provided with a baffle, the baffle comprising:

[0015] The center of the partition; and

[0016] Multiple plate bodies extend radially from the center of the partition to the inner wall of the tube, and a cavity is formed between two adjacent plate bodies and the inner wall of the tube.

[0017] Multiple plate bodies extend outward from the center of the partition in a radiating pattern, and an independent cavity can be formed between two adjacent plate bodies and the inner wall of the tube.

[0018] As a preferred embodiment of the above-mentioned stripper, the central part of the partition is arranged coaxially with the central axis of the tube body, and the included angle between any two adjacent plate bodies is the same.

[0019] The center of the partition is coaxial with the central axis of the tube, and the included angle between any two adjacent partitions is the same, so that the volume of each cavity is the same and the drug is dispensed more evenly.

[0020] As a preferred embodiment of the above-mentioned stripper, the drug inlet connector includes:

[0021] The sleeve portion covers the surface of the tube body and avoids the drug inlet hole;

[0022] The inlet section is connected to the sleeve section at a preset inclined angle and communicates with the inlet hole; and

[0023] A support portion is disposed between the sleeve portion and the drug inlet portion.

[0024] The cannula section increases the thickness and strength of the tube body. The drug inlet section allows anesthetic to be introduced into the drug inlet hole. The drug inlet section and the cannula section are at a preset angle, which facilitates the connection of the anesthetic access device. The support section improves the stability of the drug inlet section and prevents shaking when the anesthetic is introduced.

[0025] As a preferred embodiment of the above-mentioned stripper, it also includes:

[0026] A handle is detachably attached to the surface of the tube body, and the handle is provided with a groove extending inward from its surface;

[0027] The tube body is provided with a clip, which can be snapped into the slot from the outside.

[0028] The handle is placed on the surface of the tube to facilitate the peeling procedure.

[0029] As a preferred embodiment of the above-mentioned peeler, the handle includes a handle body symmetrically arranged on both sides of the slot portion.

[0030] The slot is located between two symmetrically arranged handle bodies, so that the handle can be evenly stressed.

[0031] As a preferred embodiment of the above-mentioned stripper, the clamping head includes a front clamping ring portion and a rear clamping ring portion arranged sequentially along the axial direction and having a difference in outer diameter;

[0032] The slot portion includes a front slot and a rear slot arranged sequentially along its own length direction and having an inner diameter difference. The front slot is used to engage the front retaining ring portion, and the rear slot is used to engage the rear retaining ring portion.

[0033] The front and rear retaining rings have a difference in outer diameter, which creates a stepped surface at their connection. Similarly, the front and rear retaining grooves of the retaining groove have a difference in inner diameter, which creates a stepped surface between them. The front retaining groove engages with the front retaining ring, and the rear retaining groove engages with the rear retaining ring, thus achieving axial positioning.

[0034] As a preferred embodiment of the above-mentioned stripper, the length of the front groove is greater than the axial length of the front retaining ring, and the length of the rear groove is greater than the axial length of the rear retaining ring.

[0035] With the above configuration, the front retaining groove can completely cover the front retaining ring part along the axial direction, and the rear retaining groove can completely cover the rear retaining ring part along the axial direction, thereby improving the stability of the fit.

[0036] As a preferred embodiment of the above-mentioned stripper, the second end is provided with the clamping head, and the sealing head cooperates with the clamping head.

[0037] Compared to a smooth tube body, the clamp head is easier to fit with the end cap, improving the sealing effect.

[0038] The beneficial effects of this invention are as follows: the first end of the tube is closed and the second end is open. The tube has multiple isolated cavities inside, each with an independent drug outlet. After connecting the drug inlet connector through the drug inlet, anesthetic can be introduced into the tube. When the anesthetic flows out of the tube outlet, the tube outlet is sealed with a cap. When the anesthetic is continued to be introduced into the drug inlet, the anesthetic will only flow out from the drug outlet. During the stripping surgery, the anesthetic can provide multi-area anesthesia in the vein, achieving simultaneous stripping and anesthesia. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the stripper provided in Embodiment 1 of this application;

[0040] Figure 2 These are radial sectional views of the tube body in the stripper provided in Embodiments 1 and 2 of this application;

[0041] Figure 3 yes Figure 1 A magnified view of circle A in the middle;

[0042] Figure 4 This is a schematic diagram of the drug inlet connector in the peeler provided in Embodiments 1 and 2 of this application;

[0043] Figure 5 This is a schematic diagram of the stripper provided in Embodiment 2 of this application;

[0044] Figure 6 yes Figure 5 A magnified view of circle B in the middle;

[0045] Figure 7 This is a schematic diagram of the handle in the peeler provided in Embodiment 2 of this application;

[0046] Figure 8 This is a schematic diagram of the clip head in the peeler provided in Embodiment 2 of this application. Detailed Implementation

[0047] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0048] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0049] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0050] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0051] Example 1:

[0052] This embodiment provides a peeler, such as Figure 1 As shown, the stripper includes a tube body 1, a drug inlet connector 2, and a cap 3.

[0053] See Figure 2 and Figure 3 The tube body 1 is configured as a cylindrical tube with a closed first end and an open second end with a tube outlet. A flow channel is formed between the first end and the tube outlet. The flow channel is divided into four mutually isolated cavities 10, and each cavity 10 extends along the length of the tube body 1. Each cavity 10 has a drug inlet near the first end (not shown in this embodiment) and a drug outlet 11 between the first end and the second end.

[0054] In this embodiment, four drug inlet connectors 2 are provided. The four drug inlet connectors 2 are arranged in sequence and connected to the four drug inlet holes one by one. That is, after the anesthetic is injected into one drug inlet connector 2, it enters an independent cavity 10 through the drug inlet hole and can flow out from the tube outlet or the drug outlet hole 11. This part of the anesthetic will not flow into other cavities 10 and the corresponding drug outlet holes 11. In this embodiment, the drug inlet connector 2 is a Luer connector.

[0055] It should be noted that the size of the drug outlet 11 is much smaller than that of the tube outlet. According to the relevant principles of air pressure, when the tube outlet is open, the anesthetic can only flow out from the tube outlet and will not or very little will flow out from the drug outlet 11.

[0056] The end cap 3 is detachably connected to the second end of the pipe body 1, and the pipe outlet can be blocked when the end cap 3 is connected to the second end.

[0057] The tube body 1 is closed at one end and open at the other. The tube body 1 has four isolated cavities 10 inside, each of which has an independent drug outlet 11. After connecting the drug inlet connector 2 through the drug inlet, anesthetic can be introduced into the tube body 1. When the anesthetic flows out of the tube outlet, the tube outlet is blocked by the end cap 3. When the anesthetic is continued to be introduced into the drug inlet, the anesthetic will only flow out from the drug outlet 11. During the stripping surgery, the anesthetic can provide multi-area anesthesia in the vein, so that stripping and anesthesia can be performed simultaneously.

[0058] The area between the second end of the tube body 1 and its nearest drug inlet connector 2 is defined as a first region. Four drug outlet holes 11 are equally spaced between the first region of the tube body 1, dividing the portion of the tube body 1 that can extend into the blood vessel into equal length. With the above arrangement, the tube body 1 can deliver drugs evenly along its length, achieving a better anesthetic effect.

[0059] Furthermore, the tube body 1 is provided with a partition 13 inside. The partition 13 includes a partition center portion 130 and four plate bodies 131. The plate bodies 131 extend radially from the partition center portion 130 to the inner wall of the tube body 1. A cavity 10 is formed between two adjacent plate bodies 131 and the inner wall of the tube body 1.

[0060] Four plate bodies 131 extend outward from the center 130 of the partition in a radiating manner, and an independent cavity 10 can be formed between two adjacent plate bodies 131.

[0061] The central portion 130 of the partition is coaxially arranged with the central axis of the tube body 1, and the included angle between any two adjacent plate bodies 131 is the same. In this embodiment, the included angle between two adjacent plate bodies 131 is 90°. The coaxiality of the central portion 130 of the partition with the central axis of the tube body 1 and the same included angle between any two adjacent plate bodies 131 ensure that the volume of each cavity 10 is the same, resulting in more uniform drug dispensing.

[0062] In this embodiment, the partition 13 is configured as a cross-shaped structure.

[0063] See Figure 4 The drug inlet connector 2 includes a sleeve part 21, a drug inlet part 22, and a support part 23.

[0064] The cannula 21 covers the surface of the tube body 1 and avoids the drug inlet port. The drug inlet 22 is connected to the cannula 21 at a preset angle and communicates with the drug inlet port. The support 23 is disposed between the cannula 21 and the drug inlet 22. The cannula 21 increases the thickness and strength of the tube body 1. The drug inlet 22 allows anesthetic to be injected into the drug inlet port, and the preset angle between the drug inlet 22 and the cannula 21 facilitates connection to an anesthetic access device (e.g., a syringe). The support 23 improves the stability of the drug inlet 22 and prevents it from shaking when injecting anesthetic.

[0065] In this embodiment, the angle between the drug inlet 22 and the sleeve 21 is 40°. It should be noted that 40° is not the only choice; the angle can be set to any value between 30° and 90°.

[0066] When in use, first input the anesthetic through each drug inlet 2. When the anesthetic flows out from the ends of the four cavities 10 at the tube outlet of the tube body 1, it means that the air in the tube body 1 has been purged. Then, seal the tube outlet with the end cap 3. After that, when inputting anesthetic, the anesthetic can only flow out from the drug outlet 11.

[0067] During the procedure, the stripper is inserted distal to the severed and ligated diseased vein. After passing through the diseased vessel, a small incision is made in the corresponding skin layer to expose the vein. The vessel is ligated near the end cap 3 of the stripper, and the vein is severed between the two ligatures. A measured amount of anesthetic is injected using four syringes. The stripper provided in this embodiment allows for multi-regional anesthesia of the vein during the stripping procedure, enabling simultaneous stripping and anesthesia.

[0068] Example 2:

[0069] This embodiment provides a peeler, such as Figure 5 As shown, the stripper includes a tube body 1, a drug inlet connector 2, a cap 3, and a handle 4.

[0070] See also Figure 2 and Figure 3 The tube body 1 is configured as a cylindrical tube with a closed first end and an open second end with a tube outlet. A flow channel is formed between the first end and the tube outlet. The flow channel is divided into four mutually isolated cavities 10, and each cavity 10 extends along the length of the tube body 1. Each cavity 10 has a drug inlet near the first end (not shown in this embodiment) and a drug outlet 11 between the first end and the second end.

[0071] In this embodiment, four drug inlet connectors 2 are provided. The four drug inlet connectors 2 are arranged in sequence and connected to the four drug inlet holes one by one. That is, after the anesthetic is injected into one drug inlet connector 2, it enters an independent cavity 10 through the drug inlet hole and can flow out from the tube outlet or the drug outlet hole 11. This part of the anesthetic will not flow into other cavities 10 and the corresponding drug outlet holes 11. In this embodiment, the drug inlet connector 2 is a Luer connector.

[0072] It should be noted that the size of the drug outlet 11 is much smaller than that of the tube outlet. According to the relevant principles of air pressure, when the tube outlet is open, the anesthetic can only flow out from the tube outlet and will not or very little will flow out from the drug outlet 11.

[0073] The end cap 3 is detachably connected to the second end of the pipe body 1, and the pipe outlet can be blocked when the end cap 3 is connected to the second end.

[0074] like Figure 6 The handle 4 is detachably connected to the surface of the tube body 1. The handle 4 has a slot 40 extending inward from its surface. The handle body 41 is provided on both sides of the slot 40. The handle body 41 is used for gripping.

[0075] The tube body 1 is provided with a clip head 14, which can be snapped into the slot 40 from the outside.

[0076] The tube body 1 is closed at one end and open at the other. The tube body 1 has four isolated cavities 10 inside, each of which has an independent drug outlet 11. After connecting the drug inlet connector 2 through the drug inlet, anesthetic can be introduced into the tube body 1. When the anesthetic flows out of the tube outlet, the tube outlet is blocked by the end cap 3. When the anesthetic is continued to be introduced into the drug inlet, the anesthetic will only flow out from the drug outlet 11. When performing the stripping surgery, a handle 4 is installed. The anesthetic can provide multi-area anesthesia in the vein. The handle 4 facilitates the stripping operation, so that stripping and anesthesia can be performed simultaneously.

[0077] The area between the second end of the tube body 1 and its nearest drug inlet connector 2 is defined as a first region. Four drug outlet holes 11 are equally spaced between the first region of the tube body 1, dividing the portion of the tube body 1 that can extend into the blood vessel into equal length. With the above arrangement, the tube body 1 can deliver drugs evenly along its length, achieving a better anesthetic effect.

[0078] Furthermore, the tube body 1 is provided with a partition 13 inside. The partition 13 includes a partition center portion 130 and four plate bodies 131. The plate bodies 131 extend radially from the partition center portion 130 to the inner wall of the tube body 1. A cavity 10 is formed between two adjacent plate bodies 131 and the inner wall of the tube body 1.

[0079] Four plate bodies 131 extend outward from the center 130 of the partition in a radiating manner, and an independent cavity 10 can be formed between two adjacent plate bodies 131.

[0080] The central portion 130 of the partition is coaxially arranged with the central axis of the tube body 1, and the included angle between any two adjacent plate bodies 131 is the same. In this embodiment, the included angle between two adjacent plate bodies 131 is 90°. The coaxiality of the central portion 130 of the partition with the central axis of the tube body 1 and the same included angle between any two adjacent plate bodies 131 ensure that the volume of each cavity 10 is the same, resulting in more uniform drug dispensing.

[0081] In this embodiment, the partition 13 is configured as a cross-shaped structure.

[0082] See Figure 4 The drug inlet connector 2 includes a sleeve part 21, a drug inlet part 22, and a support part 23.

[0083] The cannula 21 covers the surface of the tube body 1 and avoids the drug inlet port. The drug inlet 22 is connected to the cannula 21 at a preset angle and communicates with the drug inlet port. The support 23 is disposed between the cannula 21 and the drug inlet 22. The cannula 21 increases the thickness and strength of the tube body 1. The drug inlet 22 allows anesthetic to be injected into the drug inlet port, and the preset angle between the drug inlet 22 and the cannula 21 facilitates connection to an anesthetic access device (e.g., a syringe). The support 23 improves the stability of the drug inlet 22 and prevents it from shaking when injecting anesthetic.

[0084] In this embodiment, the angle between the drug inlet 22 and the sleeve 21 is 40°. It should be noted that 40° is not the only choice; the angle can be set to any value between 30° and 90°.

[0085] like Figure 7 and Figure 8 The clamping head 14 includes a front retaining ring portion 141 and a rear retaining ring portion 142 arranged sequentially along the axial direction and having a difference in outer diameter. The clamping groove portion 40 includes a front clamping groove 401 and a rear clamping groove 402 arranged sequentially along its own length direction and having a difference in inner diameter. The front clamping groove 401 is used to engage the front retaining ring portion 141, and the rear clamping groove 402 is used to engage the rear retaining ring portion 142.

[0086] In this embodiment, the length of the front retaining groove 401 is greater than the axial length of the front retaining ring portion 141, and the length of the rear retaining groove 402 is greater than the axial length of the rear retaining ring portion 142. The front retaining groove 401 can completely cover the front retaining ring portion 141 along the axial direction, and the rear retaining groove 402 can completely cover the rear retaining ring portion 142 along the axial direction, thereby improving the stability of the fit.

[0087] It should be noted that the second end of the tube body 1 is provided with a clamp 14, and the end cap 3 cooperates with the clamp 14 at this position.

[0088] When in use, first input the anesthetic through each drug inlet 2. When the anesthetic flows out from the ends of the four cavities 10 at the tube outlet of the tube body 1, it means that the air in the tube body 1 has been purged. Then, seal the tube outlet with the end cap 3. After that, when inputting anesthetic, the anesthetic can only flow out from the drug outlet 11.

[0089] During the procedure, the stripper is inserted distal to the severed and ligated diseased vein. After passing through the diseased vessel, a small incision is made in the corresponding area of ​​the skin to expose the vein. The vessel is ligated near the end cap 3 of the stripper, and the vein is severed between the two ligatures. A measured dose of anesthetic is injected using four syringes. The handle 4 is then attached, and the entire stripper is pulled out with even force, allowing the entire diseased vein to emerge.

[0090] The stripper provided in this embodiment allows the anesthetic to provide multi-regional anesthesia within the vein during the stripping surgery, enabling stripping and anesthesia to be performed simultaneously.

[0091] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A peeler, characterized in that, include: The tube (1) has a closed first end and an open second end with a tube outlet. A flow channel is formed between the first end and the tube outlet. The flow channel is divided into multiple isolated cavities (10). Each cavity (10) extends along the length of the tube (1). Each cavity (10) has a drug inlet near the first end and a drug outlet (11) between the first end and the second end. The size of the drug outlet (11) is much smaller than that of the tube outlet. Each cavity (10) has an independent drug outlet (11). Multiple drug inlet connectors (2) are arranged sequentially at the first end and connected to the drug inlet holes one by one. The drug inlet connectors (2) are used to input liquid medicine; and The end cap (3) is detachably connected to the second end. When the end cap (3) is connected to the second end, it can block the pipe outlet. When the liquid medicine flows out from the pipe outlet, the air in the pipe body (1) is vented. When the end cap (3) blocks the pipe outlet, the liquid medicine can only flow out from the medicine outlet (11).

2. The peeler according to claim 1, characterized in that, The second end of the tube (1) is defined as a first region between itself and the nearest drug inlet connector (2), and the drug outlet (11) is arranged at equal intervals between the first region, dividing the first region into equal parts along its length.

3. The peeler according to claim 2, characterized in that, The tube body (1) is provided with a partition (13) inside, and the partition (13) includes: The central part of the partition (130); and Multiple plate bodies (131) extend radially from the center portion (130) of the partition to the inner wall of the tube (1), and a cavity (10) is formed between two adjacent plate bodies (131) and the inner wall of the tube (1).

4. The peeler according to claim 3, characterized in that, The central part (130) of the partition plate is arranged coaxially with the central axis of the tube body (1), and the included angle between any two adjacent plate bodies (131) is the same.

5. The peeler according to claim 1, characterized in that, The drug inlet connector (2) includes: The sleeve (21) covers the surface of the tube body (1) and avoids the drug inlet hole; The inlet section (22) is connected to the sleeve section (21) at a preset angle and communicates with the inlet hole; and A support portion (23) is disposed between the sleeve portion (21) and the drug inlet portion (22).

6. The peeler according to any one of claims 1-5, characterized in that, Also includes: The handle (4) is detachably connected to the surface of the tube body (1), and the handle (4) is provided with a groove (40) extending inward from its surface. The tube body (1) is provided with a clip (14), which can be snapped into the slot (40) from the outside.

7. The peeler according to claim 6, characterized in that, The handle (4) includes handle bodies (41) symmetrically arranged on both sides of the slot (40).

8. The peeler according to claim 6, characterized in that, The clamp (14) includes a front clamping ring (141) and a rear clamping ring (142) arranged sequentially along the axial direction and having a difference in outer diameter. The slot portion (40) includes a front slot (401) and a rear slot (402) arranged sequentially along its own length direction and having an inner diameter difference. The front slot (401) is used to engage the front retaining ring portion (141), and the rear slot (402) is used to engage the rear retaining ring portion (142).

9. The peeler according to claim 8, characterized in that, The length of the front slot (401) is greater than the axial length of the front retaining ring (141), and the length of the rear slot (402) is greater than the axial length of the rear retaining ring (142).

10. The peeler according to claim 7, characterized in that, The second end is provided with the card head (14), and the end cap (3) cooperates with the card head (14).

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