Great saphenous vein stripping device

Abstract

The utility model discloses a great saphenous vein stripping device which comprises a hollow grab handle, a push button is arranged in a cavity of the grab handle in a sliding mode, a fixing ring is arranged in the cavity of the grab handle, a liquid injection pipe is arranged on the fixing ring, the liquid injection pipe penetrates through the grab handle and is arranged at one end of the grab handle, and a stripping assembly is arranged at the other end, opposite to the liquid injection pipe, of the grab handle. The stripping assembly comprises a stripping pipe fixed to the end of the grab handle, one end of the liquid injection pipe is arranged in the stripping pipe, a stripping knife is arranged at the end of the stripping pipe, a guide-out groove is formed in the portion, located at the stripping knife, of the side wall of the stripping pipe, a cutting knife matched with the guide-out groove is arranged on the stripping pipe in a sliding mode, and guide grooves are formed in the two sides of the guide-out groove. Two groups of steel wires are arranged in the cavity of the stripping tube, one end of each steel wire penetrates through the guide groove and is fixedly connected with the cutter, and the other end is fixedly connected to the push button; according to the great saphenous vein stripping device, accurate stripping and final cutting work can be achieved while analgesic is injected, operation is easy, convenient and efficient, and operation time can be effectively shortened.

Description

TECHNICAL FIELD

[0001] The utility model discloses medical instrument technical field especially relates to a great hidden vein stripper. BACKGROUND

[0002] In the medical field, the great hidden vein stripper is an important instrument for treating varicose veins and related vascular diseases. With the change of lifestyle and the acceleration of aging process, the incidence of varicose veins and vascular diseases in China is increasing year by year. These diseases not only bring patients discomfort symptoms such as pain and swelling, but also seriously affect their quality of life, such as causing leg movement limitation, skin ulcer and other complications. In view of this, patients pay more attention to the long-term efficacy and cosmetic effect of varicose vein treatment, and hope to reduce the adverse effects of surgical trauma while effectively curing the disease.

[0003] With files The disclosed vein stripping device is mainly used to solve the problem that the size of the hole on the cannula for stripping the vein is difficult to expand due to the limitation of the cutting hole on the cutter during cutting operation, causing the vein to be unable to fully stretch when entering the cutting area, which makes the vein easily deformed during cutting by the cutter, the actual thickness of the blood vessel increases significantly, and the difficulty of cutting the blood vessel is significantly increased. More importantly, if the cutter slips during cutting, the residual end of the cut blood vessel will be too long, which will seriously affect the effect of vein resection and cannot meet the strict requirements of precise and efficient treatment in clinical practice.

[0004] During long-term use, it is found that in addition to the above-mentioned problems, the existing technology also faces another difficult problem, that is, it is difficult to achieve fine stripping operation according to the vascular characteristics of different patients. In detail, the vascular conditions of different patients are different, the thickness of the blood vessels varies from thin and fragile to relatively thick, and the elasticity of the blood vessels varies. Some patients have good blood vessel elasticity, while some patients have serious blood vessel elasticity due to age, disease and other factors, and the degree of disease varies. Some patients only have local mild lesions, while some patients have extensive and severe lesions. However, due to the limitations of the structure design, the existing device lacks flexible and precise adjustment mechanism, and it is difficult to adaptively adjust the stripping and cutting force and the stripping angle according to these complex vascular characteristics. For example, for patients with thin and poor elastic blood vessels, the existing stripper is easy to damage the surrounding normal tissues due to improper force control during operation, causing unnecessary bleeding or other complications. For patients with severe vascular lesions and complex morphology, the existing device is difficult to completely remove the lesion site while avoiding excessive damage to the surrounding normal blood vessel tissue, affecting the normal functional recovery of the blood vessel after operation. This lack of adaptability to different vascular characteristics greatly limits the application effect and scope of the existing great hidden vein stripping device in clinical treatment.

[0005] In contrast, the great saphenous vein stripper provided by the present application is expected to effectively overcome the above-mentioned problems in the prior art through a series of innovative structural designs, and bring a new solution to the great saphenous vein stripping surgery. Content of the utility model

[0006] The utility model discloses to solve the problem that the existing great saphenous vein stripping device lacks flexible and accurate adaptive adjustment mechanism due to structural design limitations, and is difficult to adapt to the complex characteristics of different patients' blood vessels in terms of thickness, elasticity and lesion degree, which can easily lead to damage to the surrounding normal tissues and affect the postoperative blood vessel function recovery.

[0007] The utility model discloses a great saphenous vein stripper through the following technical scheme to realize above-mentioned purpose: a great saphenous vein stripper, including the inside hollow handle, the handle cavity is slidably provided with the push button, the push button operating part is through the handle lateral wall and places its outside, the handle cavity is provided with the fixed ring on one side of the push button, the fixed ring is provided with the liquid injection tube, the liquid injection tube is through the handle and places its one end, relative the liquid injection tube the handle other end is provided with stripping assembly;

[0008] The stripping assembly includes a stripping tube fixed to the end of the handle, one end of the liquid injection tube is placed in the stripping tube, the end of the stripping tube is provided with a stripping knife, a guide groove is formed in the lateral wall of the stripping tube at the stripping knife, a cutting knife is slidably arranged on the stripping tube and matched with the guide groove, guide grooves are formed on both sides of the guide groove, two groups of steel wires are arranged in the cavity of the stripping tube, one end of the steel wire penetrates through the guide groove and is fixedly connected with the cutting knife, and the other end is fixedly connected with the push button.

[0009] Further, the handle adopts a cylindrical structure, the lateral wall of the handle is provided with a holding groove, and the holding groove is a wave-shaped structure with concave-convex intervals.

[0010] Further, the size of the push button is greater than the diameter of the opening through which the push button penetrates the lateral wall of the handle, and the surface of the operating part is provided with a protrusion facilitating pushing, and the protrusion is provided with anti-slip textures.

[0011] Further, a spiral groove is arranged on the lateral wall of the end of the stripping tube, the depth of the spiral groove is 0.1-0.2mm, and the pitch is 3-5mm.

[0012] Further, the cutting edge of the stripping knife is in an inwardly recessed arc shape, and the stripping knife is fixed to the end of the stripping tube through threaded connection.

[0013] Further, the length of the guide groove is 8-12mm, the width is 1.5-2.5mm, and a guide slope is arranged at the end of the groove.

[0014] Further, the cutting knife adopts a double-blade structure.

[0015] Further, the steel wire surface is plated with a silver ion coating.

[0016] Beneficial effects: The utility model discloses reasonable design, simple and stable structure, and strong practicality have the following beneficial effects:

[0017] 1, operation convenience promotion: the cylindrical design of the handle is matched with the wavy holding groove, and the holding habit of the doctor is perfectly matched, and long-time operation is not easy to be tired, the stable operation of the whole operation is guaranteed, the big specification and the anti -skidding convex design of the push button are designed, the doctor can accurately exert force in the operation, is not afraid of hand wet and slippery, effectively avoids the mistake caused by inconvenient operation, and the operation operation smoothness is greatly improved.

[0018] 2, operation precision enhancement: the spiral groove at the end of the stripping tube can further soften the end, like accurate navigation, helps the doctor to stably advance in different thick and thin blood vessels, accurately controls the stripping position and angle, ensures that the diseased blood vessel is stripped without any loss, the arc-shaped blade of the stripping knife is seamlessly combined with the blood vessel wall, can accurately separate the diseased blood vessel, and the damage to normal tissues is minimized, the cutting knife with double-blade structure can efficiently cut and stabilize the blood vessel at the same time, prevent the blood vessel from deforming during cutting, realize more accurate and thorough cutting.

[0019] 3, operation safety improvement: the liquid injection pipe can inject analgesic agent as required, and the operation safety is comprehensively guaranteed, the silver ion coating on the surface of the steel wire can ensure accurate transmission while exerting strong antibacterial effect, effectively reducing the risk of postoperative infection, and building a strong defense line for postoperative rehabilitation of patients. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a schematic view of the utility model;

[0021] Fig. 2 It is an enlarged structure schematic view of part A of the utility model;

[0022] Fig. 3 It is a schematic view of the internal structure of the handle of the utility model.

[0023] In the drawing: 1-handle, 2-push button, 3-fixing ring, 4-liquid injection pipe, 5-stripping assembly;

[0024] 501-stripping tube, 502-stripping knife, 503-outlet groove, 504-cutting knife, 505-guide groove, 506-steel wire. DETAILED DESCRIPTION

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1:

[0027] Combination Figs. 1-3 The illustrated great saphenous vein stripper is designed to provide an efficient and precise operating tool for the treatment of varicose veins and related vascular diseases. Its core structure begins with a hollow handle 1. Within the cavity of the handle 1, a flexibly sliding push button 2 is installed. The operating part of the push button 2 is cleverly designed to penetrate the side wall of the handle 1 and be positioned on its outer side. This design allows the surgeon to conveniently and quickly operate the push button 2 during surgery. Through a simple pushing motion, precise control of other key components of the stripper can be achieved. The push button 2 is located within the cavity of the handle 1. On one side, a fixing ring 3 is installed, on which an injection tube 4 is provided. The injection tube 4 extends through one end of the handle 1 to the outside of the other end of the handle 1. The injection tube 4 is made of high-quality medical-grade material, which has good flexibility and chemical stability. It can smoothly deliver the required liquid without affecting the surgical operation. During the operation, the doctor can inject local anesthetic drugs into the blood vessels through the injection tube 4 to reduce the patient's pain during the operation and ensure the safety of the operation in all aspects. On the other end of the handle 1 relative to the injection tube 4, a crucial stripping component 5 is provided.

[0028] The stripping assembly 5 includes a stripping tube 501 tightly fixed to the end of the handle 1. The stripping tube 501 is made of a lightweight material with good toughness, enabling stable advancement and operation in complex vascular environments. One end of the injection tube 4 is cleverly placed inside the stripping tube 501, allowing the injected liquid to directly act on the surgical site, improving the efficiency of liquid use. A stripping blade 502 is provided at the end of the stripping tube 501. A guide groove 503 is formed on the side wall of the stripping tube 501 located at the stripping blade 502. During the operation, the guide groove 503 can effectively guide the stripped blood vessels during the operation, avoiding accumulation at the surgical site and affecting the accuracy of subsequent stripping operations. The stripping tube 501 is also equipped with a cutting blade 504 that cooperates with the outlet groove 503. Guide grooves 505 are provided on both sides of the outlet groove 503. Inside the cavity of the stripping tube 501, there are two sets of steel wires 506. One end of the steel wire 506 passes precisely through the guide groove 505 and is fixedly connected to the cutting blade 504. The other end is firmly fixedly connected to the push button 2. When the doctor pushes the push button 2, the movement of the push button 2 is transmitted to the cutting blade 504 through the steel wire 506. Due to the guiding effect of the guide groove 505, the cutting blade 504 can slide stably on the stripping tube 501 along the preset trajectory, closely cooperate with the outlet groove 503, and accurately cut the blood vessel.

[0029] The handle 1 of the embodiment adopts a cylindrical structure in line with ergonomic design, which can allow the doctor to maintain a comfortable holding state during a long operation process. The outer wall of the handle 1 is provided with a holding groove in a unique wavy structure with concave-convex alternation. Such a design can greatly increase the friction between the palm and the handle 1, so as to ensure stable holding even if the doctor's hands are sweaty due to long operation, effectively prevent the handle 1 from sliding in the hands, and provide stable and reliable support for the operation, helping the doctor to accurately control the action of the stripper and improve the stability and accuracy of the operation.

[0030] The specification of the push button 2 is obviously larger than the diameter of the opening on the side wall of the handle 1 for the push button 2 to pass through. Such a design can provide a larger force application area for the doctor when operating the push button 2, facilitate the doctor to push accurately and powerfully, and ensure accurate control of the stripper during the operation, effectively improving the smoothness and reliability of the operation.

[0031] The spiral groove is accurately provided at the end of the side wall of the stripper tube 501, and the depth of the spiral groove is strictly controlled within the range of 0.1 to 0.2 mm. Such a depth can effectively soften the end of the stripper tube 501, facilitate the advancement of the stripper tube 501, and not damage the intima of the blood vessel due to excessive depth. At the same time, the pitch of the spiral groove is carefully designed to be 3 to 5 mm. Such a pitch allows the stripper tube 501 to move smoothly along the established trajectory during the advancement, and can stably advance regardless of the bending and narrowness of the blood vessel or the difference in the thickness of the blood vessels of different patients, accurately separate the diseased vein from the surrounding tissue, significantly improve the accuracy and success rate of the stripping operation, and provide strong support for the operation of the doctor in a complex blood vessel environment.

[0032] The blade of the stripper knife 502 presents an inwardly recessed ingenious arc shape. After a large number of simulation experiments and clinical data demonstration, the arc shape can perfectly adapt to the inner wall profile of blood vessels of different diameters, minimize the damage to normal tissues, and greatly improve the accuracy and safety of the operation. The stripper knife 502 is stably fixed to the end of the stripper tube 501 by means of threaded connection, which facilitates the doctor to operate when installing and dismounting the stripper knife 502, and ensures the firmness of the connection.

[0033] The length of the guide-out groove 503 in the embodiment is accurately set in the interval of 8 to 12 mm, if the length is too short, the blood vessel may not be effectively guided out, leading to unsmooth discharge, and if the length is too long, the structural strength of the corresponding position of the stripping tube 501 may be weakened, affecting the stability of the overall operation, and the width is carefully designed to be 1.5 to 2.5 mm, which can ensure that the blood vessel passes through smoothly, and will not have a negative impact on the structural integrity of the stripping tube 501, and the groove end of the guide-out groove 503 is provided with a guide slope, so that the blood vessel is more smooth during the guide-out process.

[0034] The cutting knife 504 in the embodiment adopts a double-blade structure, aiming to greatly improve the efficiency and accuracy of the cutting link of the operation, the main blade and the auxiliary blade cooperate with each other, the main blade is responsible for the main cutting task, and the auxiliary blade is skillfully arranged beside the main blade, which plays a dual role of auxiliary cutting and stabilizing the blood vessel during the cutting process, when the main blade cuts into the blood vessel, the auxiliary blade can timely clamp and fix the cut part of the blood vessel, prevent the blood vessel from displacement or deformation due to uneven force during the cutting process, and ensure the stability and accuracy of the cutting process, at the same time, the double-blade structure increases the cutting area, compared with the traditional single-blade structure, the cutting efficiency is greatly improved, which can complete the cutting operation in a shorter time, effectively shorten the operation time, and reduce the surgical trauma and pain of the patient.

[0035] The steel wire 506 in the embodiment is carefully plated with a layer of silver ion coating on the surface, the silver ion has excellent antibacterial performance, which can effectively inhibit the growth and reproduction of various common bacteria, fungi and viruses, during the great saphenous vein stripping operation, the surgical instruments are in a complex environment in the human body, which is easily contaminated by microorganisms, and the silver ion coating on the surface of the steel wire 506 forms an antibacterial protection area around it, greatly reducing the risk of infection caused by instrument contact, and providing a solid guarantee for the smooth recovery of the patient after the operation.

[0036] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0037] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A great saphenous vein stripper, comprising a hollow handle (1), wherein a push button (2) is slidably disposed within the cavity of the handle (1), the operating part of the push button (2) penetrates the side wall of the handle (1) and is located on its outer side, and a fixing ring (3) is disposed within the cavity of the handle (1) on one side of the push button (2), wherein an injection tube (4) is disposed on the fixing ring (3), and the injection tube (4) penetrates the handle (1) and is located at one end thereof, characterized in that: The other end of the handle (1) of the liquid injection pipe (4) is provided with a stripping assembly (5); The stripping assembly (5) comprises a stripping pipe (501) fixed to the end of the handle (1), one end of the liquid injection pipe (4) is arranged in the stripping pipe (501), the stripping pipe (501) is provided with a stripping knife (502) at the end, a guide groove (503) is arranged on the side wall of the stripping pipe (501) at the stripping knife (502), a cutting knife (504) is arranged on the stripping pipe (501) in sliding mode and matched with the guide groove (503), guide grooves (505) are arranged on both sides of the guide groove (503), two groups of steel wires (506) are arranged in the cavity of the stripping pipe (501), one end of the steel wire (506) is fixedly connected with the cutting knife (504) through the guide groove (505), and the other end is fixedly connected with the push button (2).

2. A great saphenous vein stripper according to claim 1, characterized in that: The handle (1) adopts a cylindrical structure, and a holding groove is arranged on the outer side wall of the handle (1), the holding groove is a wave-shaped structure with concave-convex intervals.

3. A great saphenous vein stripper according to claim 2, characterized in that: The push button (2) is larger than the opening diameter of the side wall of the handle (1) for the push button (2) to pass through, and the surface of the operation part is provided with a convex part convenient for pushing, and the convex part is provided with anti-skid texture.

4. A great saphenous vein stripper according to claim 3, characterized in that: A spiral groove is arranged on the end side wall of the stripping pipe (501), the depth of the spiral groove is 0.1-0.2mm, and the pitch is 3-5mm.

5. A great saphenous vein stripper according to claim 4, characterized in that: The blade of the stripping knife (502) is an inwardly recessed arc, and the stripping knife (502) is fixed to the end of the stripping pipe (501) through threaded connection.

6. A great saphenous vein stripper according to claim 5, characterized in that: The length of the guide groove (503) is 8-12mm, the width is 1.5-2.5mm, and the groove end is provided with a guide slope.

7. A great saphenous vein stripper according to claim 6, characterized in that: The cutting knife (504) adopts a double-blade structure.

8. A great saphenous vein stripper according to claim 7, characterized in that: The surface of the steel wire (506) is plated with a silver ion coating.

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