Lead aspirator for knee arthroscopic surgery

Abstract

The utility model belongs to the technical field of medical instruments, and relates to a lead aspirator for knee arthroscopic surgery, which comprises a lead tube, an adjusting tube, an adjusting groove, a U-shaped ring and a connecting rod. The moving block is arranged in the adjusting pipe and close to the adjusting groove, part of the moving block is located in the adjusting groove, the moving block is slidably connected with the inner wall of the adjusting pipe and the inner wall of the adjusting groove, the moving block is connected with the other end of the connecting rod, and the moving block drives the U-shaped ring to stretch out of and retract into the lead pipe. And the lead metal block is clamped by the U-shaped ring and the end part of the lead pipe and then is driven to move. According to the utility model, the U-shaped ring can be driven to extend out of and retract into the lead tube through the movement of the moving block, the lead metal block is clamped through the U-shaped ring and the end part of the lead tube, and the lead metal block is driven to move freely through the U-shaped ring, so that the limitation on the lead metal block is avoided, and the lead metal block can be accurately positioned under the condition that fine operation is needed. The position of the lead wire metal block is more convenient to adjust, and normal proceeding of the knee arthroscopic surgery is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, and relates to a lead suction device for knee arthroscopy. BACKGROUND

[0002] Knee arthroscopy is a minimally invasive surgical technique, which involves making one or more small incisions in the knee joint and inserting special surgical instruments and a camera (arthroscope) into the knee joint for examination, diagnosis and treatment. This surgical method can be used to treat meniscus injury, cruciate ligament injury, cartilage injury, intra-articular loose body, osteoarthritis and other knee joint diseases. In knee arthroscopy, due to the small surgical incision, the use of traditional needle insertion method may not be convenient, and therefore instruments are often used to assist in suturing the surgical incision.

[0003] The traditional auxiliary lead instrument for knee arthroscopy includes a left clamp, a right clamp and a spring sheet. When in use, one end of the lead is connected with a lead metal block, and medical personnel hold the lead metal block by the left clamp and the right clamp for lead operation. However, when the medical personnel hold the left clamp and the right clamp for clamping operation, the hand needs a large amplitude to clamp the lead metal block, so that a large operation space is needed for clamping the lead metal block.

[0004] At present, in order to solve the above problems, some existing patents have been improved, for example, a lead suction device for knee arthroscopy with publication number CN107951552A, which includes a cylinder, a push rod and a magnetic core. The cylinder forms an accommodating cavity near the magnetic core by moving the push rod, and the lead metal block is adsorbed into the accommodating cavity to complete the lead operation. However, since the lead metal block is completely adsorbed on the magnetic core, the free movement of the lead metal block is limited, which makes it inconvenient to adjust the position of the lead metal block in the case of fine operation, and affects the normal progress of knee arthroscopy. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of lead suction device for knee arthroscopy, which can avoid the limitation of lead metal block, so that it is more convenient to adjust the position of lead metal block in the case of fine operation.

[0006] To achieve the above object, the utility model provides a kind of lead suction device for knee arthroscopy, and the specific technical scheme is as follows:

[0007] A kind of lead suction device for knee arthroscopy, including lead pipe and adjusting pipe, one end of lead pipe is connected with one end of adjusting pipe, adjusting pipe side surface is provided with adjusting groove along its length direction, adjusting pipe is used for medical personnel single hand holding, further including:

[0008] A U-shaped ring is arranged in the lead pipe and located at the other end of the lead pipe, and the bent part of the U-shaped ring is located outside the lead pipe;

[0009] A connecting rod is arranged in the lead pipe, and one end of the connecting rod is connected with the U-shaped ring;

[0010] A moving block is arranged in the adjusting pipe and located close to the adjusting groove, and part of the moving block is located in the adjusting groove, the moving block is slidably connected with the inner wall of the adjusting pipe and the inner wall of the adjusting groove respectively, the other end of the connecting rod is connected with the moving block, the U-shaped ring is driven to extend out of and retract into the lead pipe through the moving block, and the lead wire metal block is driven to move after being clamped by the end part of the lead pipe through the U-shaped ring.

[0011] The utility model has the characteristics that:

[0012] The elastic member is sleeved on the connecting rod, the limiting sleeve is sleeved on the connecting rod and located between the elastic member and the U-shaped ring, the outer side surface of the limiting sleeve is fixedly connected with the inner wall of the lead pipe, the inner side surface of the limiting sleeve is slidably connected with the connecting rod, the end part corresponding to the elastic member of the limiting sleeve is connected, the limiting disc is arranged in the lead pipe and located between the elastic member and the moving block, the connecting rod passes through the limiting disc and is fixedly connected with the limiting disc, the edge of the limiting disc is slidably connected with the inner wall of the lead pipe, and the end part corresponding to the elastic member of the limiting disc is connected.

[0013] The two slide grooves are symmetrically arranged on the inner wall of the adjusting pipe and close to the moving block, each slide groove is arranged along the length direction of the adjusting pipe, and the slide block is arranged in each slide groove and connected with the moving block.

[0014] The connecting block is arranged between the U-shaped ring and the connecting rod, one side of the connecting block is connected with the two ends of the U-shaped ring, the other side of the connecting block is connected with the end part of the connecting rod, and the magnetic core is arranged in the connecting block.

[0015] The end part of the lead pipe close to the U-shaped ring is of a closed structure, two limiting through holes are arranged on the closed end of the lead pipe and close to the U-shaped ring, and the U-shaped ring passes through the two limiting through holes.

[0016] The end part of the lead pipe close to the U-shaped ring is of a closed structure, two limiting through holes are arranged on the closed end of the lead pipe and close to the U-shaped ring, and the U-shaped ring passes through the two limiting through holes.

[0017] The button is arranged in the adjusting groove and close to the moving block, one end of the button is connected with the moving block, the other end of the button is located outside the adjusting groove, and the end part of the button located outside the adjusting groove is provided with the anti-skid pattern.

[0018] The utility model discloses a kind of lead suction devices for knee arthroscopy surgery, which has the following advantages:

[0019] First, through the cooperation of the lead tube, the adjusting tube, the U-shaped ring, the connecting rod and the moving block, the U-shaped ring can be extended and withdrawn from the lead tube through the movement of the moving block, the lead metal block is clamped through the end of the U-shaped ring and the lead tube, and the lead metal block is moved freely through the U-shaped ring, so that the restriction on the lead metal block is avoided, the position of the lead metal block is more convenient to adjust in the case of fine operation, and the normal performance of the knee arthroscopy surgery is ensured.

[0020] Second, through the cooperation of the connecting rod, the elastic member, the limiting sleeve, the limiting disc, the moving block and the U-shaped ring, the lead metal block can be clamped firmly through the elastic force of the elastic member, so that the moving block does not need to be pressed when the lead metal is moved, and the movement of the lead metal block is more convenient.

[0021] Second, the device has the advantages of simple structure, convenient operation and strong practicability. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front view structural schematic diagram of the utility model;

[0023] Figure 2 It is a front view structural schematic diagram of the utility model;

[0024] Figure 3 It is a front view structural schematic diagram of the utility model Figure 2 It is a partial structure enlarged view of A part of the utility model;

[0025] Figure 4 It is a partial structure enlarged view of B part of the utility model Figure 3 It is a partial structure enlarged view of B part of the utility model

[0026] Reference signs:

[0027] 1, lead tube; 2, adjusting tube; 3, U-shaped ring; 4, connecting block; 5, magnetic core; 6, connecting rod; 7, moving block; 8, sliding block; 9, sliding slot; 10, limiting sleeve; 11, limiting disc; 12, elastic member; 13, button; 14, hinged piece; 15, circular ring; 16, adjusting groove; 17, limiting through hole. DETAILED DESCRIPTION

[0028] The technical solutions in the present application will be described clearly and thoroughly below with reference to the drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " represents the meaning of or, for example, A / B can represent A or B: "and / or" in the text is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent: A exists alone, A and B exist together, and B exists alone, in addition, in the description of the embodiments of the present application, "multiple" means two or more than two. The following terms "first" "second" are only for description purposes, and cannot be understood as implying or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" "second" can be explicitly or implicitly included one or more features.

[0029] As Figure 1 , Figure 2 , Figure 3 The utility model provides a kind of lead suction device for knee arthroscopy, including lead pipe 1, adjusting pipe 2, U-shaped ring 3, connecting rod 6 and moving block 7, lead pipe 1 with adjusting pipe 2, adjusting pipe 2 is arranged in one end of lead pipe 1, one end of lead pipe 1 is connected with one end of adjusting pipe 2, adjusting pipe 2 side is provided with adjusting groove 16 along its length direction, adjusting pipe 2 is used for medical personnel single hand to hold, U-shaped ring 3 is arranged in lead pipe 1, U-shaped ring 3 is located in the other end of lead pipe 1, the bending part of U-shaped ring 3 is located outside lead pipe 1, connecting rod 6 is arranged in lead pipe 1, one end of connecting rod 6 is connected with U-shaped ring 3, moving block 7 is arranged in adjusting pipe 2, the position of moving block 7 is close to adjusting groove 16, part of moving block 7 is located in adjusting groove 16, moving block 7 is slidably connected with adjusting pipe 2 inner wall and adjusting groove 16 inner wall respectively, it is convenient for moving block 7 to slide along adjusting pipe 2 inner wall and adjusting groove inner wall, moving block 7 is connected with the other end of connecting rod 6, U-shaped ring 3 is driven to extend and retract lead pipe 1 by moving block 7, and lead metal block is driven to move by the end portion of lead pipe 1 clamped by U-shaped ring 3 and lead metal block, when using, medical personnel single hand holds adjusting pipe 2, finger is pressed on moving block 7, moving block 7 is driven to move in the direction of lead pipe 1, lead metal block is made into U-shaped ring 3 by connecting rod 6 driving U-shaped ring 3 to extend lead pipe 1, then U-shaped ring 3 is driven to retract lead pipe 1 by connecting rod 6, lead metal block is clamped by the end portion of lead pipe 1 by U-shaped ring 3 and lead metal block, and lead metal block is driven to move freely by U-shaped ring 3, avoid the restriction to lead metal block, so that in the case where fine operation is needed, the position of lead metal block is adjusted more conveniently, ensure the normal progress of knee arthroscopy.

[0030] As Figure 3As shown, the elastic member 12 is sleeved on the connecting rod 6, the limiting sleeve 10 is sleeved on the connecting rod 6 between the elastic member 12 and the U-shaped ring 3, the outer side of the limiting sleeve 10 is fixedly connected with the inner wall of the lead tube 1, the inner side of the limiting sleeve 10 is slidably connected with the connecting rod 6, the end of the limiting sleeve 10 corresponding to the elastic member 12 is connected, the limiting disc 11 is arranged between the elastic member 12 and the moving block 7 in the lead tube 1, the connecting rod 6 passes through and is fixedly connected with the limiting disc 11, the edge of the limiting disc 11 is slidably connected with the inner wall of the lead tube 1, the end of the limiting disc 11 corresponding to the elastic member 12 is connected, when the connecting rod 6 moves in the direction of the U-shaped ring 3 under the force, the limiting disc 11 is driven to move in the direction of the U-shaped ring 3, the elastic member 12 is compressed under the force, then when the connecting rod 6 loses the force of moving in the direction of the U-shaped ring 3, the connecting rod 6 is reset by the limiting disc 11 under the elasticity of the elastic member 12, so as to facilitate clamping the lead metal block by the U-shaped ring 3, on the one hand, the operation space required for clamping the lead metal block is reduced, on the other hand, the lead metal block is clamped firmly by the elasticity of the elastic member 12, and the moving block 7 does not need to be pressed when the lead metal is moved, so that the movement of the lead metal block is more convenient.

[0031] As shown in the figure, Figure 3 The two symmetrical sliding grooves 9 are arranged on the inner wall of the adjusting tube 2 close to the moving block 7, each sliding groove 9 is arranged along the length direction of the adjusting tube 2, and the sliding block 8 is arranged in each sliding groove 9. The sliding block 8 can freely slide along the corresponding sliding groove 9, the sliding block 8 is connected with the moving block 7, and the moving block 7 is limited by the two sliding blocks 8 and the two sliding grooves 9, so as to avoid rotating when the moving block 7 moves along the length direction of the adjusting tube 2.

[0032] As shown in the figure, Figure 4 The connecting block 4 is arranged between the U-shaped ring 3 and the connecting rod 6, one side of the connecting block 4 is connected with the two ends of the U-shaped ring 3, the other side of the connecting block 4 is connected with the end of the connecting rod 6, and the magnetic core 5 is arranged in the connecting block 4. The magnetic core 5 is convenient for attracting the lead metal block when the U-shaped ring 3 clamps the lead metal block.

[0033] As shown in the figure, Figure 4 The end of the lead tube 1 close to the U-shaped ring 3 is a closed structure, two limiting through holes 17 are arranged on the closed end of the lead tube 1 close to the U-shaped ring 3, the U-shaped ring 3 passes through the two limiting through holes 17, the U-shaped ring 3 is limited by the two limiting through holes 17, so that the U-shaped ring 3 can freely shuttle in the two limiting through holes 17 without swinging.

[0034] As shown in the figure, Figure 1 , Figure 2As shown, the end of the adjusting tube 2 away from the lead tube 1 is provided with a circular ring 15, the circular ring 15 is connected with the end of the lead tube 1 through a hinge 14, the hinge 14 is detachably connected with the end of the lead tube 1, the circular ring 15 can swing around the hinge 14, which is convenient for hanging.

[0035] As shown, the outer side of the adjusting tube 2 is provided with an anti-skid sleeve, the anti-skid sleeve is made of rubber material, the friction force of the hand is effectively enhanced through the anti-skid sleeve, so that the adjusting tube 2 is not easy to fall off from the hand of the medical staff. Figure 1

[0036] As shown, the adjusting groove 16 is provided with a button 13 near the moving block 7, one end of the button 13 is connected with the moving block 7, the other end of the button 13 is located outside the adjusting groove 16, the end of the button 13 located outside the adjusting groove 16 is provided with an anti-skid pattern, which is convenient for the medical staff to push the moving block 7 through the button 13 to drive the U-shaped ring 3 to clamp the lead metal block, so that the clamping is more convenient, and the convenience of moving the lead metal block is also increased. Figure 1 Figure 3 As shown, the adjusting groove 16 is provided with a button 13 near the moving block 7, one end of the button 13 is connected with the moving block 7, the other end of the button 13 is located outside the adjusting groove 16, the end of the button 13 located outside the adjusting groove 16 is provided with an anti-skid pattern, which is convenient for the medical staff to push the moving block 7 through the button 13 to drive the U-shaped ring 3 to clamp the lead metal block, so that the clamping is more convenient, and the convenience of moving the lead metal block is also increased.

[0037] Working principle: when in use, the medical staff holds the adjusting tube 2 with one hand, and presses the button 13 with the fingers, drives the button 13 to move towards the lead tube 1, the button 13 drives the connecting rod 6 to move towards the outside of the lead tube 1 through the moving block 7, when the connecting rod 6 is forced to move towards the U-shaped ring 3, the limiting disc 11 is driven to move towards the U-shaped ring 3, the elastic element 12 is compressed to be forced, the U-shaped ring 3 moves towards the outside of the lead tube 1, the lead metal block enters the U-shaped ring 3, then the button 13 is released, the connecting rod 6 loses the force of moving towards the U-shaped ring 3, and is reset through the limiting disc 11 under the elastic force of the elastic element 12, so that the U-shaped ring 3 is reset, the lead metal block is clamped through the U-shaped ring 3 and the end of the lead tube 1, and the position of the lead metal block is adjusted, then the medical staff performs lead operation.

[0038] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.​​

Claims

1. A lead suction device for knee arthroscopy surgery, comprising a lead tube (1) and an adjusting tube (2), one end of the lead tube (1) is connected with one end of the adjusting tube (2), an adjusting groove (16) is formed on the side of the adjusting tube (2) along the length direction, the adjusting tube (2) is used for being held by medical staff with one hand, characterized in that, Also include: U-shaped ring (3) is arranged in the lead tube (1), and is located at the other end of the lead tube (1), the bending part of the U-shaped ring (3) is located outside the lead tube (1); The connecting rod (6) is arranged in the lead tube (1), one end of the connecting rod (6) is connected with the U-shaped ring (3); The moving block (7) is arranged in the adjusting tube (2), and is located close to the adjusting groove (16), part of the moving block (7) is located in the adjusting groove (16), the moving block (7) is respectively connected with the inner wall of the adjusting tube (2) and the inner wall of the adjusting groove (16), the other end of the connecting rod (6) is connected with the moving block (7), the U-shaped ring (3) is driven to extend and retract the lead tube (1) through the moving block (7), and the lead metal block is moved by the U-shaped ring (3) and the end of the lead tube (1) clamping the lead metal block.

2. The arthroscopic knee surgery lead aspirator of claim 1, wherein, The elastic element (12) is sleeved on the connecting rod (6), the limiting sleeve (10) is sleeved on the connecting rod (6) between the elastic element (12) and the U-shaped ring (3), the outer side of the limiting sleeve (10) is fixedly connected with the inner wall of the lead tube (1), the inner side of the limiting sleeve (10) is slidably connected with the connecting rod (6), the end of the limiting sleeve (10) corresponding to the elastic element (12) is connected, the limiting disc (11) is arranged between the elastic element (12) and the moving block (7) in the lead tube (1), the connecting rod (6) passes through the limiting disc (11) and is fixedly connected with the limiting disc (11), the edge of the limiting disc (11) is slidably connected with the inner wall of the lead tube (1), and the end of the limiting disc (11) corresponding to the elastic element (12) is connected.

3. The arthroscopic knee surgery lead aspirator of claim 1, wherein, Two sliding grooves (9) are symmetrically arranged on the inner wall of the adjusting tube (2) close to the moving block (7), each sliding groove (9) is arranged along the length direction of the adjusting tube (2), and a sliding block (8) is arranged in each sliding groove (9), the sliding block (8) is connected with the moving block (7).

4. The arthroscopic knee surgery lead aspirator of claim 1, wherein, The connecting block (4) is arranged between the U-shaped ring (3) and the connecting rod (6), one side of the connecting block (4) is connected with the two ends of the U-shaped ring (3), the other side of the connecting block (4) is connected with the end of the connecting rod (6), and the magnetic core (5) is arranged in the connecting block (4).

5. The arthroscopic knee surgery lead aspirator of claim 1, wherein, The end of the lead tube (1) close to the U-shaped ring (3) is of closed structure, two limiting through holes (17) are arranged on the closed end of the lead tube (1) close to the U-shaped ring (3), and the U-shaped ring (3) passes through the two limiting through holes (17).

6. The arthroscopic knee surgery lead aspirator of claim 1, wherein, The end of the adjusting tube (2) away from the lead tube (1) is provided with a circular ring (15), the circular ring (15) is connected with the end of the lead tube (1) through the hinge (14), and the hinge (14) is detachably connected with the end of the lead tube (1).

7. The arthroscopic knee surgery lead aspirator of claim 1, wherein, The button (13) is arranged in the adjusting groove (16) close to the moving block (7), one end of the button (13) is connected with the moving block (7), the other end of the button (13) is located outside the adjusting groove (16), and the end of the button (13) located outside the adjusting groove (16) is provided with anti-skid lines.

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