Guide wire lock and operation method

Abstract

The invention relates to a guide wire lock and an operation method. The guide wire lock comprises a fixed mounting part; the fixed mounting part is provided with a plurality of first joint positions which are used for being jointed with an external component to limit the sliding of the fixed mounting part; the fixed mounting part is further provided with a plurality of second joint positions which are used for being jointed with an external component to limit rotation of the fixed mounting part, and the second joint positions and the first joint positions have a relatively fixed connection state so as to achieve locking connection of the fixed mounting part and the external component; the guide wire lock has the advantages that rotation of the fixed mounting part can be limited while sliding of the fixed mounting part is limited, and then the mounting stability of the guide wire lock is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a guide wire lock and an operating method thereof. Background Art

[0002] In ERCP surgery, a guide wire is usually used to enter the human body through an endoscope and reach the predetermined position, and then other instruments are sent to the designated position under the guidance of the guide wire. However, multiple instruments are generally used in surgery, so during surgery, the guide wire needs to be fixed to ensure that the distal end of the guide wire remains fixed in the designated position. At the same time, the instruments are exchanged, so we need to fix the guide wire when exchanging instruments.

[0003] There are currently three methods for fixing the guidewire lock to the endoscope: one is to use a plastic strap to tie the guidewire lock to the endoscope; another is to use the structural elasticity of the guidewire lock itself to fix itself to the proximal end of the endoscope through elastic deformation; and another is to fix it through the extrusion force of plastic elastic parts. The above three methods are relatively complex in design, and some guidewire locks are not completely fixed to the endoscope, which is prone to relative rotation, causing the distal end of the guidewire to deviate. In addition, during the operation, the doctor usually needs to use both hands to complete the fixation, which is time-consuming and labor-intensive.

[0004] Therefore, it is an urgent problem for those skilled in the art to provide a guide wire lock that will neither slip nor rotate relative to the endoscope after being fixed, thereby being stably mounted on an external component to reduce the difficulty of operation for operators. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the defects in the prior art, thereby providing a guide wire lock and an operation method.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A guide wire lock comprises: a fixed installation part;

[0008] The fixed installation portion is provided with a plurality of first engagement positions for engaging with an external component to limit the sliding of the fixed installation portion;

[0009] The fixed mounting portion also has a plurality of second engagement positions for engaging with an external component to limit the rotation of the fixed mounting portion, and the second engagement positions and the first engagement positions have a relatively fixed connection state to achieve a locking connection between the fixed mounting portion and the external component.

[0010] It is worth noting that the external component can be a medical device such as an endoscope. For the convenience of explanation, an endoscope is taken as an example. At this time, the external component includes two parts: a biopsy cap and a side portion of the clamp opening, wherein the biopsy cap has a groove, and the biopsy cap is sleeved on the clamp opening. When the first engagement position provided on the fixed mounting portion is engaged with the groove provided on the biopsy cap, the fixed mounting portion can be limited to slide relative to the biopsy cap, that is, the fixed mounting portion is prevented from moving in a direction away from the biopsy cap. At the same time, the second engagement position provided on the fixed portion is connected to the side portion of the clamp opening, and the fixed mounting portion can be limited to rotate relative to the side portion of the clamp opening, that is, the fixed mounting portion is prevented from rotating on the side portion of the clamp opening, and the fixed mounting portion is limited to rotate relative to the central axis of the biopsy cap, so as to achieve stable installation of the fixed mounting portion, and then achieve stable installation of the guide wire lock. In addition, the stably installed fixed mounting portion can limit the biopsy cap from leaving the clamp opening through the first engagement position. In addition, it is also worth noting that the first engagement position and the biopsy cap, and the second engagement position and the side portion of the clamp opening can adopt a point contact, line contact or surface contact or a combination of engagement methods. The specific settings can be made according to actual usage requirements, with surface contact being preferred.

[0011] Preferably, the fixed mounting portion includes at least one first engaging portion and at least one second engaging portion; at least one first engaging portion is connected to at least one adjacent second engaging portion so that the second engaging position is relatively fixed to the first engaging position to limit the sliding and rotation of the fixed mounting portion relative to the external component.

[0012] It is worth mentioning that the connection state here includes various connection methods such as a rotationally fitting connection between the first joining part and the second joining part, a fixed connection between the second joining part as a whole and the first joining part as a whole, and a fixed connection between a part of the second joining part and the first joining part. These methods can make the first joining position and the second joining position relatively fixed, thereby limiting the sliding and rotation of the fixed mounting part relative to the external component.

[0013] Preferably, at least one first engaging portion can be locked and connected with at least one adjacent second engaging portion, and when the two are in a locked state, the second engaging position is relatively fixed to the first engaging position to limit the sliding and rotation of the fixed mounting portion relative to the external component, and when the two are in an unlocked state, the fixed mounting portion is in a disassembly state that can be removed from the external component.

[0014] It is worth mentioning that the locking connection here includes one or more of the various methods such as snap connection, limit groove limitation, multiple limit surface clamping, etc., so that by operating the locking and unlocking of the first joint part and the second joint part, the overall convenient disassembly and assembly of the fixed installation part can be achieved, and further the convenient disassembly and assembly of the guide wire lock and external components can be achieved.

[0015] Preferably, the first engagement position is at least located on the first engagement portion;

[0016] The second joining position is located on the second joining portion and / or the first joining portion.

[0017] It is worth noting that the first engagement position is a position that engages with the biopsy cap, and can be provided only on the first engagement portion, or on the first engagement portion and the second engagement portion, and can engage with the biopsy cap to limit the sliding of the fixed mounting portion relative to the biopsy cap. Similarly, the second engagement position can be located only on the first engagement portion, or can be provided only on the second engagement portion, or can be provided on both the first engagement portion and the second engagement portion, so that the second engagement position can engage with the side portion of the clamp opening, forming a clamping force that squeezes the side portion of the clamp opening in multiple directions.

[0018] Preferably, the first engaging portion includes a first engaging portion mutually engaged with the external component, and the first engaging position is located on the first engaging portion;

[0019] The first engaging portion further comprises a first abutting portion fixedly connected to the first engaging portion, and the second engaging portion comprises a second abutting portion movably connected to the first position of the first engaging portion;

[0020] The second abutting portion is lockedly connected to the second position of the first engaging portion, so that the second engaging position on the first abutting portion and the second engaging position on the second abutting portion form a clamping area for clamping and limiting the external component.

[0021] It is worth noting that the engagement referred to herein means that the first engaging portion can be embedded in the groove provided on the biopsy cap to limit the relative sliding of the biopsy cap and the first engaging portion.

[0022] Preferably, the movable connection includes a rotational connection and / or a sliding connection.

[0023] It is worth mentioning that the movable connection includes but is not limited to a rotating connection and a sliding connection. In addition, the movable connection is not limited to one type of movable connection, but can also be a combination of multiple movable connection methods, which can connect the second abutting portion to the first position of the first engaging portion, so that the second abutting portion and the first engaging portion can move relative to each other, thereby realizing the locking and unlocking of the second position of the second abutting portion and the first engaging portion.

[0024] Preferably, the first engaging portion surrounds a portion of the external component, and has a guide opening for the external component to be engaged.

[0025] It is worth noting that the first clamping part surrounds the biopsy cap, which can increase the clamping area between the first clamping part and the biopsy cap, thereby making the connection between the first clamping part and the biopsy cap more stable, and the setting of the guide opening on the first clamping part can also avoid the first clamping part surrounding the biopsy cap, which makes it difficult to assemble the first clamping part and the biopsy cap.

[0026] Preferably, a guide limiting groove is further provided on the first engaging portion, and a side wall of the guide limiting groove abuts against a partial outer wall surface of the external component.

[0027] Preferably, the second engaging portion further comprises a second engaging portion fixedly connected to the second abutting portion;

[0028] The second clamping portion is in a pressed state with the first clamping portion to cooperate with each other to enclose a clamping area of ​​the external component.

[0029] Preferably, it further comprises a first locking structure, wherein the first locking structure comprises a first buckle located on the second engaging portion and a second buckle located on the first engaging portion;

[0030] A lifting gap is left between the first engaging portion and the second engaging portion, so that the first buckle can move in a direction away from the second buckle and be unlocked.

[0031] It is worth noting that the setting of the lifting gap ensures that the second buckle will not restrict the first buckle from rotating away with the second engaging portion, thereby unlocking the first buckle and the second buckle.

[0032] Preferably, it further comprises a plug-in limiting groove, wherein the plug-in limiting groove is at least located on the first engaging portion;

[0033] One end of the second abutting portion is rotatably mounted on the first engaging portion, and has a locking state by being rotatably inserted into the insertion limiting groove.

[0034] It is worth mentioning that the second abutment portion can be rotatably mounted on the first abutment portion of the first joint portion, or can be mounted on the first clamping portion of the first joint portion, by rotating the second abutment portion into the plug-in limit slot to lock the fixed mounting portion or rotating the second abutment portion out of the plug-in limit slot to unlock the fixed mounting portion.

[0035] Preferably, a clamping groove is provided on the first clamping portion;

[0036] One end of the second abutting portion is rotatably connected to the first engaging portion, and the other end is fixedly provided with an elastic lock buckle;

[0037] The elastic lock buckle is in a buckled state of being locked into the locking groove.

[0038] Preferably, it also includes an unlocking component for driving the elastic lock buckle to disengage from the clamping slot;

[0039] The unlocking assembly includes a button for pushing the elastic lock buckle to move along the clamping groove, and the button has a force-applying surface facing the elastic lock buckle.

[0040] or,

[0041] The unlocking assembly comprises a box body located above the clamping slot, a pressing piece is slidably mounted in the box body, and the pressing piece is connected to a driving column which pushes the elastic lock buckle to move along the clamping slot when under pressure.

[0042] Preferably, the first engaging portion includes a first engaging portion mutually engaged with the external component, and the first engaging position is located on the first engaging portion;

[0043] The first engaging portion further comprises a first abutting portion fixedly connected to the first engaging portion, and the second engaging portion comprises a second abutting portion fixedly connected or slidably connected to the first engaging portion;

[0044] The second abutting portion forms the second engaging position, and the second engaging position and the second engaging position on the first abutting portion form a clamping area for clamping the external component.

[0045] It is worth noting that the second abutting portion may be an abutting plate structure or an abutting rod structure.

[0046] Preferably, the first engaging portion comprises two first engaging portions which are arranged opposite to each other and engage with the external component, and the two first engaging portions are both fixedly connected to the sleeve plate and are formed with a guide opening for the external component to be engaged;

[0047] The sleeve plate is disposed around a partial side wall of the external component and has a first end and a second end that are disposed opposite to each other, wherein the first end and the second end are respectively located at two sides of the guide opening;

[0048] A fixing rod is rotatably mounted on the first end, and the other end of the fixing rod is buckled with the second end to drive the inner side wall of the sleeve plate to press against the local side wall of the external component.

[0049] It is worth mentioning that the two first engaging portions are arranged relatively to each other and can be located on both sides of the external component when the external component is engaged, thereby increasing the clamping effect on the external component. At the same time, the setting of the guide opening can facilitate the assembly of the external component with the two first engaging portions, and the external component with the sleeve. The fixing rod can lock the first end and the second end, thereby increasing the tightening effect between the sleeve and the external component.

[0050] Preferably, it also includes a locking portion and / or a storage portion;

[0051] When the locking portion and the receiving portion are included, the locking portion is connected to the fixed installation portion via a supporting rib;

[0052] The receiving portion is located at an end of the locking portion away from the supporting rib, and is at least partially fixedly connected to the locking portion.

[0053] Preferably, the locking portion includes a central spine and a plurality of protrusions fixed on both sides of the central spine;

[0054] A locking groove is formed between the projections located on the same side of the central spine;

[0055] The support rib is located on one side of the fixed installation portion so that the central spine is located above the fixed installation portion;

[0056] An end of the central spine away from the storage portion is provided with an escape groove for the operation of the surgical device.

[0057] Preferably, the receiving portion comprises a damping block and a fixing block connecting the damping block and the locking portion;

[0058] The damping block is provided with at least one locking hole.

[0059] Preferably, the fixing block is provided with a mounting groove;

[0060] The damping block is installed in the installation groove, and a stopper is formed to limit the damping block from leaving the installation groove;

[0061] The fixing block is also provided with through holes which correspond to the locking holes one by one.

[0062] An operating method based on the above guide wire lock comprises:

[0063] Engage the first engagement position provided on the fixed installation portion of the guide wire lock with the external component to limit the relative sliding of the guide wire lock and the external component;

[0064] The second engaging position arranged on the fixed installation part is at least partially connected to the external component to limit the rotation of the fixed installation part relative to the external component.

[0065] Preferably, the method comprises: engaging a first engagement position provided on the fixed mounting portion of the guide wire lock with a biopsy cap fixed at the opening of the forceps to limit relative sliding movement between the guide wire lock and the biopsy cap;

[0066] The second engaging position provided on the fixed installation part is at least partially connected to the side of the clamp opening to limit the rotation of the fixed installation part relative to the clamp opening;

[0067] The first engaging portion and the second engaging portion are locked so that the first engaging position and the second engaging position have a relatively fixed connection state, so as to limit the sliding of the fixed mounting portion relative to the biopsy cap and the rotation relative to the side of the forceps opening;

[0068] The first engaging portion and the second engaging portion are unlocked, and the fixed mounting portion is removed from the forceps opening and the biopsy cap.

[0069] Preferably, it also includes:

[0070] After the surgical device enters the fixed installation part, the proximal end part thereof is wound around the locking part and then enters the receiving part to be fixed.

[0071] It is worth noting that the "near end" referred to here is the end close to the operator.

[0072] Compared with the prior art, the present invention has the following beneficial effects:

[0073] The above technical solution provides a guide wire lock and an operating method, which can limit the slippage of the fixed mounting part by setting the first engagement position, and can limit the rotation of the fixed mounting part by setting the second engagement position, and the first engagement position and the second engagement position can be relatively fixed and locked, thereby limiting the rotation of the fixed mounting part while limiting the slippage of the fixed mounting part, and further limiting the slippage and rotation of the guide wire lock, so that the fixing effect of the guide wire lock is better, and further avoiding deviation of the surgical device during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0075] Figure 1 It is a schematic structural diagram of the first embodiment of the guide wire lock of the present invention.

[0076] Figure 2 for Figure 1 Schematic diagram of the structure of the first joint.

[0077] Figure 3 for Figure 1 Schematic diagram of the structure of the second joint.

[0078] Figure 4 for Figure 1 A cross-sectional schematic diagram of the first engaging portion and the second engaging portion after being fastened together.

[0079] Figure 5 for Figure 1 Schematic diagram of the connection between the provided wire lock and external components.

[0080] Figure 6 for Figure 5 Explosion diagram.

[0081] Figure 7 for Figure 5 Schematic diagram of the cross-section of the biopsy cap.

[0082] Figure 8 for Figure 5 A schematic cross-sectional view at the position of the second engaging portion.

[0083] Fig. 9 for Figure 5 A schematic cross-sectional view at the first abutting portion and the second abutting portion.

[0084] Fig.10 for Figure 1 Schematic diagram of the structure of the middle storage part.

[0085] Fig.11 for Figure 5 Schematic diagram from another perspective.

[0086] Fig.12 It is a schematic structural diagram of a second embodiment of the guide wire lock of the present invention.

[0087] Fig.13 for Fig.12 A schematic diagram of the structure when the first engaging portion and the second engaging portion are locked and connected.

[0088] Fig.14 for Fig.12 Schematic diagram of the structure when the first engaging part and the second engaging part are unlocked.

[0089] Fig.15 for Fig.12 Schematic diagram of the connection between the provided wire lock and external components.

[0090] Fig.16 It is a structural schematic diagram of a third embodiment of the guide wire lock of the present invention.

[0091] Fig.17 for Fig.16 Schematic diagram of the connection between the provided wire lock and external components.

[0092] Fig.18 It is a structural schematic diagram of a fourth embodiment of the guide wire lock of the present invention.

[0093] Fig.19 for Fig.18 A schematic diagram of a state in which the first engaging portion and the second engaging portion are in a locking process.

[0094] Fig. 20 for Fig.18 Schematic diagram of the connection between the provided wire lock and external components.

[0095] Fig.21for Fig. 20 Enlarged view of position A in the middle.

[0096] Fig. 22 It is a schematic structural diagram of a fifth embodiment of the guide wire lock of the present invention.

[0097] Fig.23 for Fig. 22 Schematic diagram of the structure of the first joint.

[0098] Fig.24 for Fig. 22 Schematic diagram of the first engaging portion and the second engaging portion being in a locked state.

[0099] Fig.25 for Fig. 22 A schematic diagram of a state in which the first engaging portion and the second engaging portion are in an unlocking process or a locking process.

[0100] Fig.26 for Fig. 22 Schematic diagram of the connection between the provided wire lock and external components.

[0101] Fig. 27 It is a schematic structural diagram of a sixth embodiment of the guide wire lock of the present invention.

[0102] Fig.28 for Fig. 27 Schematic diagram of the main view.

[0103] Fig.29 for Fig. 27 Schematic diagram of the connection between the provided wire lock and external components.

[0104] Fig.30 It is a structural schematic diagram of the seventh embodiment of the guide wire lock of the present invention.

[0105] Fig.31 for Fig.30 Schematic diagram of the connection between the provided wire lock and external components.

[0106] Fig.32 for Fig.30 Schematic diagram of the positions of the annular sleeve and the tightening rod when the middle guide wire lock is in the locked state.

[0107] Fig.33 for Fig.30 Schematic diagram of the positions of the annular sleeve and the clamping rod when the middle guide wire lock is in the unlocked state.

[0108] Fig.34 It is a structural schematic diagram of an eighth embodiment of the guide wire lock of the present invention.

[0109] Fig.35 for Fig.34Schematic diagram of the connection between the provided wire lock and external components.

[0110] Fig.36 for Fig.35 A partial cutaway diagram of .

[0111] Description of reference numerals:

[0112] 1000, biopsy cap; 10000, docking hole; 10001, groove; 10002, base; 2000, side of the forceps opening; 3000, forceps opening; 4000, guide wire; 1, fixed installation part; 101, first engagement position; 102, second engagement position; 11, first engagement part; 110, first clamping part; 1100, guide opening; 1101, guide limit groove; 111, first abutment part; 1111, installation shaft; 11111, first slope; 112, sleeve; 1121, first end; 1122, second end; 1123, second lock; 12, second joint; 120, second engaging portion; 121, second abutting portion; 1210, transverse rib; 1211, mounting hole; 12111, second slope; 1212, extension piece; 1213, hand piece; 122, annular sleeve; 123, abutting rod; 124, first step; 125, second step; 126, lock cover; 1261, through slot; 127, spring; 128, fixing rod; 1281, first locking buckle; 1282, handle; 2, locking portion; 21, central spine; 22, protrusion; 23, locking groove; 24, avoidance groove; 3, storage portion; 31, damping block; 310, locking hole; 32, fixing block; 320, through hole; 321, installation groove; 4, supporting rib; 5, first locking structure; 50, locking cover; 51, first buckle; 52, second buckle; 6. Insertion limit groove; 61. Protruding plate; 7. Second locking structure; 71. Card-connecting groove; 72. Elastic lock buckle; 73. Force rod; 74. Unlocking limit groove; 70. Unlocking assembly; 701. Button; 702. Box body; 7021. Sliding cavity; 703. Pressing piece; 7031. Shrapnel; 704. Driving column; 7041. Inclined guide surface; 8. Fixed plate; 81. Baffle bar; 811. Guide groove; 82. Locking block; 821. Guide wire fixing groove. DETAILED DESCRIPTION

[0113] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, 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.

[0114] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0115] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0116] See also Figures 1 to 36 The embodiment of the present invention provides a guidewire lock for fixing a surgical device in a medical device, comprising a fixed installation portion 1, a locking portion 2 and a storage portion 3. The fixed installation portion 1 is used to fix the guidewire lock as a whole on an external component; one end of the locking portion 2 is fixedly connected to the fixed installation portion 1 through a support rib 4, and the other end is fixedly connected to at least part of the storage portion 3, so that the guidewire 4000 can be wound and fixed by the locking portion 2, and fixed by the storage portion 3. Of course, in other embodiments, the locking portion 2 and the storage portion 3 may not be provided, or only one of the locking portion 2 and the storage portion 3 may be provided, so as to achieve the fixation of the guidewire 4000, and the specific setting can be made according to actual use requirements.

[0117] Specifically, in order to prevent the guidewire lock from slipping and rotating after installation, the fixed installation part 1 has a plurality of first engagement positions 101 for engaging with external components to limit the slippage of the fixed installation part 1; the fixed installation part 1 also has a plurality of second engagement positions 102 for engaging with external components to limit the rotation of the fixed installation part 1, and the second engagement positions 102 and the first engagement positions 101 have a relatively fixed connection state to achieve a locking connection between the fixed installation part 1 and the external component. Among them, the external component can be set to a variety of structures, such as the body of the medical device, related components of the medical device, etc. For the convenience of description, in this embodiment, the guidewire lock is used for an endoscope as an example for further explanation. At this time, the external component includes a biopsy cap 1000 and a side portion 2000 of the clamp opening, wherein the first engagement position 101 engages with the biopsy cap 1000 to limit the slippage of the fixed installation part 1; the second engagement position 102 engages with the side portion 2000 of the clamp opening to limit the rotation of the fixed installation part 1, and further limits the slippage and rotation of the guidewire lock. In addition, the first joint position 101 and the biopsy cap 1000, and the second joint position 102 and the side portion 2000 of the forceps opening can be joined in a point contact, line contact or surface contact manner, which can be specifically configured according to actual use requirements.

[0118] Further, in the present embodiment, the fixed mounting portion 1 includes a first engaging portion 11 and a second engaging portion 12, and the first engaging portion 11 is in a connected state with the adjacent second engaging portion 12. Specifically, the connection states of the first engaging portion 11 and the second engaging portion 12 may include multiple, such as one or more of a fixed connection, a slot limiting connection, a locking connection, etc., so that the second engaging position 102 is relatively fixed with the first engaging position 101 to limit the sliding and rotation of the fixed mounting portion 1 relative to the external component. When the first engaging portion 11 and the second engaging portion 12 are in a locked state, the first engaging position 101 and the second engaging position 102 are relatively fixed to limit the sliding and rotation of the fixed mounting portion 1, and when the first engaging portion 11 and the second engaging portion 12 are in an unlocked state, the fixed mounting portion 1 is in a disassembled state that can be removed from the external component. In addition, both the first joining portion 11 and the second joining portion 12 can be set to one; the first joining portion 11 can also be set to multiple, while the second joining portion 12 is set to one, so that multiple first joining portions 11 are locked and connected with one second joining portion 12; the first joining portion 11 and the second joining portion 12 can also be set to multiple, or the first joining portion 11 can be set to one, while the second joining portion 12 can be set to multiple, and the specific settings can be made according to actual usage requirements.

[0119] The first engaging portion 11 and the second engaging portion 12 can be set to a variety of structures, and the locking connection between the first engaging portion 11 and the second engaging portion 12 can also be achieved through different structures. Correspondingly, the first engaging position 101 and the second engaging position 102 also have a variety of settings, and each structure can cooperate with each other to limit the sliding and rotation of the fixed mounting portion 1, and further limit the sliding and rotation of the guide wire lock.

[0120] Embodiment 1

[0121] See 1 to Fig.11 In order to simultaneously limit the sliding and rotation of the fixed installation portion 1 , in this embodiment, the first engaging portion 11 includes a first engaging portion 110 and a first abutting portion 111 , and the second engaging portion 12 includes a second abutting portion 121 .

[0122] Among them, the first clamping portion 110 is fixedly connected to the first abutting portion 111, and the first clamping portion 110 surrounds a part of the external component, and the first clamping portion 110 has a guide opening 1100 for the external component to be clamped into, so that the biopsy cap 1000 enters the arc area on the first clamping portion 110 through the guide opening 1100, so that the first clamping portion 110 is clamped with the groove 10001 set on the biopsy cap 1000; one end of the second abutting portion 121 is rotatably connected to the first abutting portion 111, and the other end is locked and connected to the first clamping portion 110, so that the second engagement position 102 located on the first abutting portion 111 and the second engagement position 102 located on the second abutting portion 121 form a clamping area for the side portion 2000 of the forceps opening.

[0123] See also Figures 1 to 4 The first abutting portion 111 is configured as an arc plate, so that the first abutting portion 111 fits against the wall surface of the external component, and the second abutting portion 121 is configured as a large plate-like structure opposite to the first abutting portion 111, thereby increasing the contact area between the first abutting portion 111 and the second abutting portion 121 and the external component, thereby increasing the limiting effect. Of course, in other embodiments, one or more of the first engaging portion 110, the first abutting portion 111, and the second abutting portion 121 are also configured as a block structure, a rod-like structure, etc.

[0124] In order to enable the second abutting portion 121 to rotate smoothly relative to the first abutting portion 111, in the present embodiment, two relatively arranged mounting shafts 1111 are provided on the first abutting portion 111, and correspondingly, two relatively arranged mounting holes 1211 are provided on the second abutting portion 121, and the mounting shafts 1111 are rotatably installed in the mounting holes 1211, so that the second abutting portion 121 can rotate around the mounting shafts 1111.

[0125] Specifically, in order to facilitate the installation of the first abutting portion 111 and the second abutting portion 121 and prevent the two from falling off after being rotated and connected, in the present embodiment, a first slope 11111 is provided on one side of each mounting shaft 1111, and a second slope 12111 is provided on one side of each mounting hole 1211, wherein the shortest distance L1 between the two mounting shafts 1111, the longest distance L2 between the two first slopes 11111, the longest distance L3 between the two mounting shafts 1111, the shortest distance l1 between the two mounting holes 1211, The shortest distance l2 between the two second slopes 12111 and the longest distance l3 between the two mounting holes 1211 are in a size relationship of: L3>l3>L2>l2>L1>l1, so that during installation, the first slope 11111 on one side of the mounting shaft 1111 fits with the second slope 12111 on one side of the mounting hole 1211, and when the installer applies force to the first abutment portion 111 or the second abutment portion 121, the mounting shaft 1111 slides into the mounting hole 1211 through the second slope 12111, completing the assembly of the fixed mounting portion 1.

[0126] Furthermore, the locking connection between the second abutting portion 121 and the first snap-fit ​​portion 110 is configured as a snap-fit ​​connection. Specifically, the first locking structure 5 can be used to connect the second abutting portion 121 and the first snap-fit ​​portion 110 to achieve locking and unlocking of the second abutting portion 121 and the first snap-fit ​​portion 110. Specifically, the first snap 51 is fixedly connected to the second abutting portion 121 through the locking cover 50, and the second snap 52 is fixedly installed on the first snap-fit ​​portion 110. Of course, in other embodiments, the second snap 52 can also be installed on the first abutting portion 111.

[0127] Furthermore, in order to facilitate the unlocking and locking of the first locking structure 5, the height H1 of the first buckle 51 is ≥ the height H2 of the second buckle 52, and L3>l3+H2, so that a lifting gap is left between the first engaging portion 11 and the second engaging portion 12. The existence of the lifting gap enables the first buckle 51 to move away from the second buckle 52 and unlock. When the second abutting portion 121 is lifted upward along the lifting gap, the first buckle 51 is lifted away from the second buckle 52. At this time, the second abutting portion 121 is rotated to drive the first buckle 51 to rotate away from the second buckle 52, and the second abutting portion 121 and the first engaging portion 110 can be unlocked smoothly. In addition, the height H1 of the first buckle 51 can be set to 1±0.2mm, and the height H2 of the second buckle 52 can be set to 1±0.2mm.

[0128] Furthermore, since the second abutment portion 121 is driven to move upwardly along the first buckle 51 and the second buckle 52 during the process of driving the first buckle 51 and the second buckle 52 to lock and unlock, in order to facilitate the application of force by the hand, in this embodiment, a plurality of transverse ribs 1210 may be provided on the outer wall surface of the second abutment portion 121.

[0129] See also Figures 5 to 10 The first engaging portion 110 is configured as a plate-like structure. When installed, the first engaging portion 110 engages with the groove 10001 provided on the biopsy cap 1000 to limit the sliding of the fixed mounting portion 1. The second abutting portion 121 and the first engaging portion 110 are locked and connected through the first locking structure 5, and enclose a clamping area for clamping and limiting the side portion 2000 of the forceps opening, thereby limiting the sliding of the fixed mounting portion 1 and limiting its rotation. Specifically, a guide opening 1100 is formed on the first engaging portion 110, and the biopsy cap 1000 can be clamped on the first engaging portion 110 through the guide opening 1100. It can be known that at this time, the first engaging position 101 is located on the first clamping portion 110, and is the fitting surface between the first clamping portion 110 and the wall of the groove 10001, and the second engaging position 102 is located on the first abutting portion 111 and the second abutting portion 121, and is the fitting surface between the first abutting portion 111 and the side portion 2000 of the clamp opening, and the second abutting portion 121 and the outer wall of the side portion 2000 of the clamp opening.

[0130] Furthermore, in order to make the first engaging portion 110 cooperate with the biopsy cap 1000 to limit the sliding of the fixed installation portion 1, while using the first engaging portion 110 to increase the stability of the installation of the biopsy cap 1000, in the present embodiment, a guide limiting groove 1101 is further provided on the first engaging portion 110, and the side wall of the guide limiting groove 1101 is against the outer wall surface of the base 10002 of the biopsy cap 1000, and the diameter or width of the guide limiting groove 1101 is slightly larger than the outer wall diameter of the base 10002. On the one hand, the contact area is increased to increase the stability of the installation of the biopsy cap 1000, and on the other hand, it can play a guiding role when the first engaging portion 110 and the biopsy cap 1000 are assembled, so as to facilitate the installation of both.

[0131] See also Figures 6 to 8 Since during surgery, the distal end of the endoscope is placed in the natural cavity of the human body, as the body is inflated or the tissue moves, liquid will gush out from the clamp opening 3000 at the proximal end of the endoscope, so the clamp opening 3000 needs to be blocked to prevent the liquid from directly gushing out. Therefore, in order to make the first clamping portion 110 cooperate with the biopsy cap 1000 to limit the slippage of the fixed mounting portion 1 while achieving a stable connection between the biopsy cap 1000 and the clamp opening 3000 and increasing the sealing effect between the two, in this embodiment, the second joint portion 12 also includes a second clamping portion 120 fixedly connected to the second abutting portion 121, and the second clamping portion 120 is configured as a plate-like structure with an arc area, and the arc area on the second clamping portion 120 is a concentric circle structure with the arc area of ​​the first clamping portion 110, and the diameter is equal, so that the second clamping portion 120 has a state of cooperating with the first clamping portion 110 to enclose a clamping area of ​​the biopsy cap 1000.

[0132] Specifically, a docking hole 10000 is provided at the bottom of the biopsy cap 1000. During assembly, the forceps opening 3000 is inserted into the docking hole 10000, wherein the diameter of the docking hole 10000 is slightly smaller than the diameter of the forceps opening 3000, so that the docking hole 10000 and the forceps opening 3000 have an interference fit, thereby increasing the sealing effect of the connection between the two and preventing liquid leakage; a flared opening can be provided at the lower end of the docking hole 10000 to facilitate the coordinated installation of the docking hole 10000 and the forceps opening 3000.

[0133] See also Figure 8 The second clamping part 120 is arranged corresponding to the first clamping part 110. After the biopsy cap 1000 is connected to the forceps opening 3000, the first clamping part 110 and the second clamping part 120 are respectively arranged on both sides of the biopsy cap 1000 to fix the biopsy cap 1000, wherein the first clamping part 110 is aligned with one side of the groove 10001 of the biopsy cap 1000, and the second clamping part 120 is aligned with the other side of the groove 10001. For easy installation, the diameter of the first clamping part 110 is slightly larger than the inner wall diameter of the groove 10001.

[0134] See also Fig.10 and Fig.11 In this embodiment, the locking portion 2 includes a central spine 21 and a plurality of protrusions 22 fixed on both sides of the central spine 21; a locking groove 23 is formed between the protrusions 22 located on the same side of the central spine 21, thereby enabling the guide wire 4000 to be wound around to fix the guide wire 4000.

[0135] In order to prevent the setting of the locking portion 2, the storage portion 3 and the support rib 4 from affecting the use of the surgical device, in the present embodiment, the support rib 4 is located on one side of the fixed mounting portion 1 so that the central spine 21 is located above the side of the fixed mounting portion 1, and an avoidance groove 24 for the operation of the surgical device is provided at one end of the central spine 21 away from the storage portion 3.

[0136] Furthermore, in order to further increase the fixing effect of the guide wire 4000, in the present embodiment, the storage portion 3 includes a damping block 31 and a fixing block 32 connecting the damping block 31 and the locking portion 2; the damping block 31 is provided with at least one locking hole 310, and the locking hole 310 can be set to a cross groove structure, a straight groove structure, a circular structure, etc., and a partial inner wall or all the inner walls of the locking hole 310 can be pressed against the outer wall of the guide wire 4000 to fix the guide wire 4000.

[0137] In order to stably install the damping block 31 on the fixing block 32, the fixing block 32 is provided with a mounting groove 321; the damping block 31 is installed in the mounting groove 321, and a stopper is formed to limit the damping block 31 from leaving the mounting groove 321, and the stopper can be set as a plane, a curved surface or a special-shaped surface; the fixing block 32 is also provided with a through hole 320 arranged in a one-to-one correspondence with the locking hole 310. Of course, in other embodiments, the damping block 31 can also be fixed in the mounting groove 321 by glue.

[0138] Embodiment 2

[0139] See also Figures 12 to 15 Based on the above-mentioned embodiment 1, the difference of this embodiment is that the locking connection between the second abutting portion 121 and the first engaging portion 110 is set as a slot limiting connection. Fig.12 , further comprising an insertion limit groove 6, one end of the second abutting portion 121 is rotatably mounted on the first engaging portion 11 (specifically, it can be rotatably mounted on the first clamping portion 110 or the first abutting portion 111), and has a locking state by being rotated and inserted into the insertion limit groove 6. When the second abutting portion 121 extends into the insertion limit groove 6, the first abutting portion 111 and the second abutting portion 121 can form a limit area for clamping the side portion 2000 of the clamp opening.

[0140] The plug-in limit groove 6 can be provided with one, two or more, and the plug-in limit groove 6 can also be formed in a variety of ways, which can be set according to actual needs. In this embodiment, a plug-in limit groove 6 is provided on the first engaging portion 110 and the lower part of the first abutting portion 111, and the plug-in limit groove 6 is formed between two relatively arranged protruding plates 61. The entrance of the plug-in limit groove 6 can be set to a flared shape to facilitate the insertion of the second abutting portion 121. Fig.13 When the second abutting portion 121 is inserted into the insertion limiting groove 6 provided on the first engaging portion 110, the fixed installation portion 1 is in a locked state. Fig.14 When the second abutting portion 121 is inserted into the insertion limiting groove 6 provided at the lower part of the first abutting portion 111, the fixed installation portion 1 is in an unlocked state, and the second abutting portion 121 can be prevented from shaking. Of course, in other embodiments, the insertion limiting groove 6 can also be provided only on the first engaging portion 110, and the locking and unlocking of the insertion limiting groove 6 and the second abutting portion 121 can be achieved.

[0141] See also Fig.12 and Fig.15 In order to facilitate the adjustment of the second abutting portion 121 so that the second abutting portion 121 can be better inserted into the insertion limit groove 6 and at the same time increase the limiting effect of the second abutting portion 121 and the side portion 2000 of the clamp opening, in the present embodiment, the second abutting portion 121 is configured as a strip, and an extension piece 1212 is provided on one side of the second abutting portion 121.

[0142] In addition, the present embodiment is different in that: the second abutting portion 121 is arranged in a strip shape, and in order to facilitate the installation of the second abutting portion 121 and prevent it from falling off after installation, a hinge hole is arranged on the second abutting portion 121, and a bell mouth is arranged on one side of the hinge hole, and a hinge shaft is arranged on the first engaging portion 110, and the hinge shaft is inserted into the hinge hole through the bell mouth, so that the second abutting portion 121 can rotate relative to the first abutting portion 111. In other words, the minimum diameter of the bell mouth can be smaller than the diameter of the hinge shaft, and a stopper can be arranged on the hinge shaft, and the outer diameter of the stopper is larger than the diameter of the hinge hole, thereby preventing the second abutting portion 121 from falling off or falling off after installation.

[0143] Embodiment 3

[0144] See also Fig.16 and Fig.17 Based on the above-mentioned second embodiment, the difference of this embodiment is that the second abutting portion 121 is rotatably mounted on the lower part of the first abutting portion 111, thereby increasing the span of the second abutting portion 121 to enhance the limiting effect between the second abutting portion 121 and the side portion 2000 of the clamp opening. Specifically, the hinge shaft can be fixed on the second abutting portion 121, and the hinge hole and the bell mouth are arranged on the first abutting portion 111. The insertion limiting groove 6 is directly provided on the first clamping portion 110.

[0145] Furthermore, since the second abutting portion 121 is relatively long, in order to facilitate driving the second abutting portion 121 , in this embodiment, a hand piece 1213 is fixedly disposed on the second abutting portion 121 .

[0146] Embodiment 4

[0147] See also Figures 18 to 21 Based on the above-mentioned embodiment 1, the difference of this embodiment lies in that: the second abutting portion 121 is configured as a strip, and one end is rotatably mounted on the first abutting portion 111 through a hinge hole and a hinge shaft; and the second locking structure 7 is used to connect the second abutting portion 121 and the first clamping portion 110 to achieve locking and unlocking of the second abutting portion 121 and the first clamping portion 110.

[0148] Specifically, the second locking structure 7 includes a snap-fitting groove 71 and an elastic lock catch 72. The snap-fitting groove 71 is provided on the first snap-fitting portion 110. The elastic lock catch 72 is provided at one end of the second abutting portion 121 which is away from the first abutting portion 111 and is hinged with the second abutting portion 121. The elastic lock catch 72 is in a snap-fitting state of snapping into the snap-fitting groove 71. In specific operation, when it is necessary to lock the first snap-fitting portion 110 and the second abutting portion 121, the second abutting portion 121 is rotated to drive the elastic lock catch 72 to snap into the snap-fitting groove 71. Due to the elastic deformation of the elastic lock catch 72, the elastic lock catch 72 can be pressed against one side of the snap-fitting groove 71 after entering the snap-fitting groove 71 to achieve a locked connection. When it is necessary to unlock, the elastic lock catch 72 is pushed out of the snap-fitting groove 71, and then the second abutting portion 121 is rotated.

[0149] To facilitate unlocking, in this embodiment, the second locking structure 7 further includes an unlocking assembly 70. Specifically, in this embodiment, the unlocking assembly 70 includes a button 701 that pushes the elastic lock buckle 72 to move along the clamping groove 71, and the button 701 has a force-applying surface facing the elastic lock buckle 72. Specifically, a plate is provided on one side of the clamping groove 71, and the button 701 is installed on the plate.

[0150] When locking is required, Fig.19 The second abutting portion 121 is rotated in the Z1 direction to rotate the elastic lock buckle 72 to the lower side of the clamping groove 71, and force is applied to make the upper side of the elastic lock buckle 72 pass through the clamping groove 71, and then the elastic lock buckle 72 is restored to the initial state and abuts against the upper side of the first clamping portion 110 to achieve locking. When unlocking is required, only the force application surface needs to be pushed, that is, along the Fig.19 The button 701 is pushed in the T1 direction to move the upper end of the elastic lock catch 72 to above the engaging groove 71, and then the second abutting portion 121 is rotated in the opposite direction of the Z1 direction to disengage the elastic lock catch 72 from the engaging groove 71, thereby completing unlocking.

[0151] In order to facilitate the elastic lock buckle 72 to be locked in and to facilitate the operator to apply force with his hand, in this embodiment, a force applying rod 73 is also included. The force applying rod 73 is located at the connecting position between the second abutting portion 121 and the elastic lock buckle 72.

[0152] Furthermore, in order to prevent the elastic lock buckle 72 from breaking due to collision with an external structure in the unlocked state, in the present embodiment, an unlocking limit groove 74 is provided on a side below the first abutting portion 111 and facing the side portion 2000 of the clamp opening.

[0153] Embodiment 5

[0154] See also Figure 22 to Figure 26Based on the above-mentioned fourth embodiment, the difference of this embodiment is that the unlocking component 70 includes a box body 702 located above the clamping groove 71, and a pressing piece 703 is slidably installed in the box body 702. The pressing piece 703 is connected to a driving column 704 that pushes the elastic lock buckle 72 to move along the clamping groove 71 when under pressure.

[0155] Specifically, the box body 702 is fixedly installed on the upper side of the first clamping portion 110, and a sliding cavity 7021 is provided in the box body 702. The sliding cavity 7021 is communicated with the clamping groove 71, and the pressing piece 703 is slidably installed in the sliding cavity 7021. The pressing piece 703 includes two symmetrically arranged spring pieces 7031 to limit the pressing piece 703 from being separated from the sliding cavity 7021 as a whole; the driving column 704 is located between the two spring pieces 7031.

[0156] When locking is required, Fig.24 The second abutting portion 121 is rotated in the Z2 direction to rotate the elastic lock buckle 72 to the lower side of the clamping groove 71, and force is applied to make the upper side of the elastic lock buckle 72 pass through the clamping groove 71, and then the elastic lock buckle 72 is restored to the initial state and abuts against the upper side of the first clamping portion 110 to achieve locking. When unlocking is required, only the force application surface needs to be pushed, that is, along the Fig.24 The pressing member 703 is pushed in the T2 direction to drive the driving column 704 to push the upper end of the elastic lock buckle 72 until the upper end of the elastic lock buckle 72 moves above the engaging groove 71, and then the second abutting portion 121 is rotated in the opposite direction of the Z2 direction to disengage the elastic lock buckle 72 from the engaging groove 71, thereby completing unlocking.

[0157] See also Fig.24 and Fig.25 In order to facilitate the driving column 704 to drive the elastic lock 72 to move and facilitate the upper side of the elastic lock 72 to disengage from the locking groove 71, in this embodiment, the driving column 704 has an inclined guide surface 7041 on the lower side of one end of the elastic lock 72.

[0158] Embodiment 6

[0159] See also Figure 27 to Figure 29 Based on the above-mentioned first embodiment, the difference of this embodiment is that the second abutting portion 121 is set as a plate structure, and the second abutting portion 121 is directly fixedly connected to the first clamping portion 110, and the side wall surfaces of the first clamping portion 110, the first abutting portion 111 and the second abutting portion 121 form a blocking surface, and form a clamping area for the side portion 2000 of the clamp opening. When locking the connection, the fixed installation portion 1 is directly clamped on the side portion 2000 of the clamp opening, so that the second abutting portion 121 is pressed against the side portion 2000 of the clamp opening.

[0160] See also Fig.28In order to ensure that the second abutting portion 121 does not affect the assembly of the first engaging portion 110 and the groove 10001 provided on the biopsy cap 1000, in the present embodiment, the height H3 of the second abutting portion 121 is not greater than 5 mm.

[0161] Embodiment 7

[0162] See also Figure 30 to Figure 33 In this embodiment, the first engaging portion 11 includes a first engaging portion 110 mutually engaged with the biopsy cap 1000, and the first engaging position 101 is located on the first engaging portion 110; the first engaging portion 11 includes the first engaging portion 110 and the first abutting portion 111, the first engaging portion 110 is fixedly connected to the first abutting portion 111, and the first engaging portion 110 is engaged with the groove 10001 provided on the biopsy cap 1000. The second engaging portion 12 includes an annular sleeve 122 fixedly connected to the first abutting portion 111 at one end, and an abutting rod 123 inserted into the annular sleeve 122; the abutting rod 123 has a shape extending out of the annular sleeve 122, so that the second engaging position 102 provided thereon and the second engaging position 102 located on the first abutting portion 111 form a clamping area for clamping the external component.

[0163] Specifically, the annular sleeve 122 and the first clamping portion 110 are injection molded as one piece, and the abutment rod 123 is installed in the inner cavity of the annular sleeve 122. When the abutment rod 123 extends out of the inner cavity, it can abut against the side of the clamp opening side portion 2000, and then cooperate with the first abutment portion 111 to clamp the clamp opening side portion 2000.

[0164] In order to facilitate the telescopic control of the abutment rod 123, in this embodiment, the abutment rod 123 is rotatably installed in the inner cavity of the annular sleeve 122, and the abutment rod 123 is provided with a first step 124 and a second step 125 from top to bottom and along the axial direction of the annular sleeve 122. A locking cover 126 is installed at the upper end of the annular sleeve 122, and a through notch 1261 is provided on the locking cover 126, which allows the first step 124 to pass through at a certain angle but restricts the second step 125 from passing through. A spring 127 is also provided between the lower end surface of the second step 125 and the lower end surface of the inner cavity of the annular sleeve 122.

[0165] Specifically, the first step 124 can be set as a rectangle, and the second step 125 can be set as a circle. When it is necessary to realize the locking connection between the first joint part 11 and the second joint part 12, the first step 124 is placed directly opposite to the through notch 1261, and then the first step 124 is placed along the notch 1261. Fig.30The abutment rod 123 is pushed in the direction T3 shown in the figure, so that the first step 124 passes through the through slot 1261 and enters the inner cavity of the annular sleeve 122. At the same time, the lower end of the abutment rod 123 passes through the lower end of the annular sleeve 122 and abuts against the side of the side portion 2000 of the clamp opening. The abutment rod 123 is then rotated to make the first step 124 and the through slot 1261 staggered. The locking cover 126 is used to limit the rebound of the abutment rod 123. Fig.31 and Fig.32 When unlocking is required, the abutment rod 123 is rotated to make the first step 124 face the through slot 1261, and the thrust is removed, so that the abutment rod 123 rebounds under the restoring force of the spring 127, and the first step 124 passes through the through slot 1261 and moves out of the inner cavity of the annular sleeve 122 until the second step 125 abuts against the lock cover 126, and the lower end of the abutment rod 123 is retracted into the inner cavity of the annular sleeve 122 again, completing the unlocking, see Fig.33 .

[0166] Embodiment 8

[0167] See also Figure 34 to Figure 36 Based on the above-mentioned embodiment 1, the difference of this embodiment lies in that: the first engaging portion 11 includes two first engaging portions 110 that are oppositely arranged and mutually engaged with the external component, and the first engaging position 101 is located on the first engaging portion 110; the first engaging portion 11 also includes a sleeve plate 112 fixedly connected to the two first engaging portions 110, and the second engaging position 102 is located on the inner side of the sleeve plate 112 and surrounds a clamping area for clamping the external component; the sleeve plate 112 has a first end 1121 and a second end 1122 that are oppositely arranged, and the second engaging portion 12 includes a fixing rod 128 that is rotatably connected to the first end 1121, and the fixing rod 128 has a locking state that is mutually engaged with the second end 1122, so that the second engaging position 102 is pressed against the local side wall surface of the external component.

[0168] Specifically, the first engaging parts 110 are arranged opposite to each other and are formed with a guide opening 1100, so that the relative connection between the first engaging part 110 and the biopsy cap 1000 is more stable, and the first engaging part 110 is not affected in being inserted into the biopsy cap 1000. The sleeve plate 112 extends from the first engaging part 110 toward the lower end and forms an inner wall surface that abuts against the side portion 2000 of the forceps opening. When the fixing rod 128 is buckled, the abutment effect between the sleeve plate 112 and the side portion 2000 of the forceps opening can be increased.

[0169] Further, in the present embodiment, a fixed plate 8 is fixedly provided on one side of the first engaging portion 110, a baffle 81 is fixedly mounted on the fixed plate 8, a guide groove 811 is formed between the baffle 81 and the fixed plate 8, two locking blocks 82 are fixedly provided on one end of the fixed plate 8 away from the first engaging portion 110, a guide wire fixing groove 821 for fixing the guide wire 4000 is provided on the locking block 82, the locking block 82 can be set according to the number of guide wires 4000 to be fixed, and can also be set to one, three or more in other embodiments.

[0170] Specifically, the fixing rod 128 is provided with a first lock buckle 1281 and a handle 1282, and the sleeve 112 is provided with a second lock buckle 1123. When the first lock buckle 1281 and the second lock buckle 1123 are engaged, a locking connection can be achieved. When unlocking is required, the handle 1282 can be lifted.

[0171] Embodiment 9

[0172] Based on the guidewire lock of the above embodiment, this embodiment further discloses an operation method of the guidewire lock, and the specific operation steps include:

[0173] S1: engage the first engagement position 101 provided on the fixed installation part 1 of the guide wire lock with the biopsy cap 1000, and engage the second engagement position 102 provided on the fixed installation part 1 with the side part 2000 of the forceps opening;

[0174] S2: Lock the first engaging portion 11 and the second engaging portion 12 so that the first engaging position 101 and the second engaging position 102 have a relatively fixed connection state, so as to limit the relative sliding and rotation of the guide wire lock and the external components (biopsy cap 1000 and side portion 2000 of the forceps opening);

[0175] S3: After the surgical device (guide wire 4000) enters the fixed installation part 1, its proximal end is wound around the locking part 2, and then enters the storage part 3 to be fixed;

[0176] S4: When unlocking is required, the fixed installation part 1 is removed from the biopsy cap 1000 and the side part 2000 of the forceps opening.

[0177] Furthermore, it also includes:

[0178] The first bonding position 101 is at least disposed on the first bonding portion 11, and the second bonding position 102 is disposed on the second bonding portion 12 and the first bonding portion 11;

[0179] The first engaging portion 11 and the second engaging portion 12 are locked and connected to limit relative sliding and rotation between the fixed installation portion 1 and the external component;

[0180] The first engaging portion 11 and the second engaging portion 12 are unlocked, and the fixing and mounting portion 1 is removed from the external component.

[0181] It is worth noting that the rotation connection method, plug-in limit groove, buckle connection method, etc. provided in each embodiment of the present application only provide a feasible solution, and do not limit the specific structure. In other embodiments, other feasible structures can also be set to achieve the corresponding relative rotation, plug-in limit, buckle locking and other functions. Further, the locking connection between the first joint part 11 and the second joint part 12 referred to in the present application is not limited to a snap connection and a limit groove connection, but also includes a relatively fixed connection, a sliding limit connection, etc., which can enable the first joint part 11 and the second joint part 12 to form a limit area for clamping the biopsy cap 1000 and the side part 2000 of the forceps opening.

[0182] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A guide wire lock, characterized in that, it includes: a fixed mounting portion; The fixed mounting portion has a number of first engagement positions for engaging with an external component to restrict the sliding of the fixed mounting portion; The fixed mounting portion also has a number of second engagement positions for engaging with an external component to restrict the rotation of the fixed mounting portion, and the second engagement positions and the first engagement positions have a relatively fixed connection state to achieve a locking connection between the fixed mounting portion and the external component.

2. The guide wire lock according to claim 1, characterized in that, The fixed mounting portion includes at least one first engagement portion and at least one second engagement portion; at least one first engagement portion and at least one adjacent second engagement portion have a connection state, so that the second engagement position and the first engagement position are relatively fixed to restrict the sliding and rotation of the fixed mounting portion relative to the external component.

3. The guide wire lock according to claim 2, characterized in that, At least one first engagement portion and at least one adjacent second engagement portion can be locked and connected. When the two are in a locked state, the second engagement position and the first engagement position are relatively fixed to restrict the sliding and rotation of the fixed mounting portion relative to the external component. When the two are in an unlocked state, the fixed mounting portion is in a disassembled state where it can be removed from the external component.

4. The guide wire lock according to claim 2, characterized in that, The first engagement position is at least located on the first engagement portion; The second engagement position is located on the second engagement portion and / or the first engagement portion.

5. The guide wire lock according to any one of claims 2 to 4, characterized in that, The first engagement portion includes a first engaging portion that engages with an external component, and the first engagement position is located on the first engaging portion; The first engagement portion further includes a first abutting portion fixedly connected to the first engaging portion, and the second engagement portion includes a second abutting portion movably connected to a first position of the first engagement portion; The second abutting portion is locked and connected to a second position of the first engagement portion, so that the second engagement position located on the first abutting portion and the second engagement position located on the second abutting portion enclose a clamping area for clamping and limiting the external component.

6. The guide wire lock according to claim 5, characterized in that, The manner of the movable connection includes rotational connection and / or sliding connection.

7. The guide wire lock according to claim 5, characterized in that, The first engaging portion surrounds a part of the external component, and the first engaging portion has a guiding opening for the external component to be inserted.

8. The guide wire lock according to claim 5, characterized in that, The first engaging portion is also provided with a guiding limiting groove, and the side wall of the guiding limiting groove abuts against a part of the outer wall surface of the external component.

9. The guide wire lock according to claim 5, characterized in that, The second engagement portion further includes a second engaging portion fixedly connected to the second abutting portion; The second engaging portion has a pressing state that cooperates with the first engaging portion to enclose a clamping area of the external component.

10. The guide wire lock according to claim 5, characterized in that, It further includes a first locking structure, and the first locking structure includes a first buckle located on the second engaging portion and a second buckle located on the first engaging portion; A lifting gap is left between the first engaging portion and the second engaging portion, so that the first buckle can move away from the second buckle to unlock.

11. A guide wire lock according to claim 5, characterized in that, It further includes a plug-in limit groove, and the plug-in limit groove is at least located on the first engaging portion; One end of the second abutting portion is rotatably installed on the first engaging portion and has a locking state of being inserted into the plug-in limit groove by rotation.

12. A guide wire lock according to claim 5, characterized in that, A clamping groove is provided on the first engaging portion; One end of the second abutting portion is rotatably connected with the first engaging portion, and an elastic lock catch is fixedly provided at the other end; The elastic lock catch has a buckling state of being snapped into the clamping groove.

13. A guide wire lock according to claim 12, characterized in that, It further includes an unlocking component for driving the elastic lock catch to disengage from the clamping groove; The unlocking component includes a button for pushing the elastic lock catch to move along the clamping groove, and the button has a force-applying surface facing the elastic lock catch, or, The unlocking component includes a box body located above the clamping groove, a pressing member is slidably installed in the box body, and the pressing member is connected with a driving column that pushes the elastic lock catch to move along the clamping groove when pressed.

14. A guide wire lock according to any one of claims 2 to 4, characterized in that, The first engaging portion includes a first engaging portion that engages with an external component, and the first engaging position is located on the first engaging portion; The first engaging portion further includes a first abutting portion fixedly connected with the first engaging portion, and the second engaging portion includes a second abutting portion fixedly connected with or slidably penetrating through the first engaging portion; The second abutting portion forms the second engaging position, and the second engaging position and the second engaging position located on the first abutting portion enclose a clamping area for clamping the external component.

15. A guide wire lock according to any one of claims 2 to 4, characterized in that, The first engaging portion includes two first engaging portions arranged oppositely and engaging with an external component, a sleeve plate fixedly connected to both of the first engaging portions, and a guiding opening for the external component to be inserted into; The sleeve plate surrounds a partial side wall of the external component and has a first end and a second end arranged oppositely, and the first end and the second end are respectively located on both sides of the guiding opening; A fixing rod is rotatably installed at the first end, and the other end of the fixing rod is buckled with the second end to drive the inner side wall of the sleeve plate to abut tightly against the partial side wall of the external component.

16. A guide wire lock according to claim 1, characterized in that, It further includes a locking portion and / or a storage portion; When including a locking portion and a storage portion, the locking portion is connected to the fixed installation portion through a support rib; The storage portion is located at one end of the locking portion away from the support rib and is at least partially fixedly connected with the locking portion.

17. A guide wire lock according to claim 16, characterized in that, The locking portion includes a central spine and a number of protrusions fixedly provided on both sides of the central spine; Locking grooves are formed between the protrusions on the same side of the central spine; The support rib is located on one side of the fixed mounting portion, so that the central spine is located above the side of the fixed mounting portion; An avoidance groove for the operation of the surgical device is provided at one end of the central spine away from the receiving portion.

18. A wire lock according to claim 16, characterized in that the receiving portion includes a damping block and a fixing block connecting the damping block and the locking portion; At least one locking hole is provided on the damping block.

19. A wire lock according to claim 18, characterized in that an installation groove is provided on the fixing block; The damping block is installed in the installation groove and forms a stop portion for restricting the damping block from disengaging from the installation groove; The fixing block is further provided with through holes corresponding to the locking holes one by one.

20. An operation method of a wire lock according to any one of claims 1 to 19 above, characterized in that it includes: Engaging the first engagement position provided on the fixed mounting portion of the wire lock with an external component to restrict relative sliding between the wire lock and the external component; At least partially contacting the second engagement position provided on the fixed mounting portion with an external component to restrict rotation of the fixed mounting portion relative to the external component.

21. The operation method according to claim 20, characterized in that it includes: Engaging the first engagement position provided on the fixed mounting portion of the wire lock with a biopsy cap fixed at the forceps opening to restrict relative sliding between the wire lock and the biopsy cap; At least partially contacting the second engagement position provided on the fixed mounting portion with the side of the forceps opening to restrict rotation of the fixed mounting portion relative to the forceps opening; Locking the first engagement portion and the second engagement portion so that the first engagement position and the second engagement position have a relatively fixed connection state to restrict relative sliding of the fixed mounting portion relative to the biopsy cap and relative rotation relative to the side of the forceps opening; Unlocking the first engagement portion and the second engagement portion and removing the fixed mounting portion from the forceps opening and the biopsy cap.

22. The operation method according to claim 20, characterized in that it further includes: After the surgical device enters the fixed mounting portion, its proximal part is wound around the locking portion and then enters the receiving portion for fixation.

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