A fixing clip

Abstract

This invention provides a fixing clamp, including a guide post; a clamping mechanism disposed on the guide post and including a first clamping block, a second clamping block, a rotating block, and a pressure elastic element; the second clamping block is located at the distal end of the first clamping block, and the rotating block is disposed at the distal end of the second clamping block and cooperates with the second clamping block to enable the rotating block to rotate unidirectionally relative to the second clamping block and also to move relative to the second clamping block in a proximal-to-distal direction; the pressure elastic element is disposed at the proximal end of the first clamping block or the distal end of the rotating block; an axial limiting member is capable of connecting to the guide post at a predetermined position on the guide post to limit the clamping mechanism within a predetermined range in the axial direction of the guide post, and at least a portion of the structure of the axial limiting member can also be disengaged from the guide post at the predetermined position to allow the clamping mechanism to at least partially disengage from the predetermined range. This fixing clamp can clamp bone pins or connecting rods and has the advantages of reliable clamping and ease of use.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and specifically to a fixing clip. Background Technology

[0002] In fracture treatment surgery, especially open fracture treatment surgery, it is often necessary to use external fixation clamps to hold bone pins or connecting rods to fix the fracture fragments. Currently, most commonly used clamps fix bone pins or connecting rods by tightening screws to apply pressure, and then loosening the screws to remove them, which is cumbersome and inconvenient. Summary of the Invention

[0003] The purpose of this invention is to provide a fixing clip that simplifies the assembly and disassembly of bone pins or connecting rods.

[0004] To achieve the above objectives, the present invention provides a fixing clip, comprising:

[0005] Guide pillar;

[0006] A clamping mechanism, disposed on the guide post, includes at least a first clamping block assembly, a rotating block, and a pressure elastic element; the first clamping block assembly includes a first clamping block and a second clamping block disposed at the distal end of the first clamping block; the rotating block is disposed at the distal end of the second clamping block and cooperates with the second clamping block such that the rotating block can rotate unidirectionally relative to the second clamping block and also move relative to the second clamping block in a proximal-to-distal direction; the pressure elastic element is disposed at the proximal end of the first clamping block or at the distal end of the rotating block; and...

[0007] An axial limiting member is capable of connecting to the guide post at a predetermined position on the guide post to limit the clamping mechanism within a predetermined range in the axial direction of the guide post. At least a portion of the structure of the axial limiting member is also capable of disconnecting from the guide post at the predetermined position to allow the clamping mechanism to at least partially disengage from the predetermined range.

[0008] When the axial limiting member restricts the clamping mechanism within the predetermined range, and the rotating block rotates relative to the second clamping block, the pressure elastic member is compressed; when at least a portion of the structure of the axial limiting member is disengaged from the guide post at the predetermined position, the pressure elastic member is allowed to elongate.

[0009] Optionally, the distal end of the second clamping block is provided with a first inclined surface, and the first inclined surface is provided with a first tooth; the proximal end of the rotating block is provided with a second inclined surface, and the second inclined surface is provided with a second tooth, the second tooth meshing with the first tooth to allow the rotating block to rotate unidirectionally relative to the second clamping block.

[0010] Optionally, the second clamping block is configured to remain circumferentially stationary with respect to the first clamping block, and the distal end face of the first clamping block is provided with a first clamping groove, and the proximal end face of the second clamping block is provided with a second clamping groove. The first clamping groove and the second clamping groove are correspondingly arranged and together form a first clamping space.

[0011] Optionally, the first clamping block is configured to remain axially stationary relative to the guide post, the pressure elastic element is disposed on the distal end side of the rotating block, and the axial limiting element is disposed on the distal end side of the pressure elastic element.

[0012] Optionally, the clamping mechanism further includes a second clamping block group, which is disposed on the distal side of the rotating block and includes a third clamping block and a fourth clamping block arranged sequentially along the axial direction of the guide post.

[0013] Optionally, the second clamping block assembly is disposed on the distal or proximal side of the pressurized elastic member.

[0014] Optionally, the third clamping block and the fourth clamping block are configured to remain circumferentially stationary, the fourth clamping block is located at the distal end of the third clamping block, and the distal end face of the third clamping block is provided with a third clamping groove, and the proximal end face of the fourth clamping block is provided with a fourth clamping groove, the fourth clamping groove and the third clamping groove are correspondingly arranged and together form a second clamping space; and / or, the second clamping block group is configured to be able to generate circumferential movement relative to the guide post.

[0015] Optionally, the axial limiting member is fitted onto the guide post; the fixing clamp further includes a connector, which is used to connect or disconnect the axial limiting member at the predetermined position on the guide post.

[0016] Optionally, the distal end of the guide post is provided with an annular groove as the predetermined position, and the axial limiting member is also provided with a through hole extending radially along the guide post; the connecting member has a Z-shaped structure and includes a first pin, a second pin, and a third pin connected in sequence; the second pin and the third pin are both located in the through hole of the limiting ring, and the free end of the first pin passes through the through hole and extends to the outside of the limiting ring; the fixing clamp also includes a reset elastic member, one end of which is connected to the second pin and the other end is connected to the guide post;

[0017] When the free end of the third pin is inserted into the slot, the axial limiting member is connected to the guide post; when the free end of the third pin is disengaged from the slot, the axial limiting member is disconnected from the guide post.

[0018] Optionally, the first clamping block is movable along the axial direction of the guide post; the predetermined position includes a first predetermined position located on the proximal side of the clamping mechanism and a second predetermined position located on the distal side of the clamping mechanism; the axial limiting member includes a proximal limiting member and a distal limiting member, the proximal limiting member being disposed at the first predetermined position, the distal limiting member being disposed at the second predetermined position, and at least one of the proximal limiting member and the distal limiting member selectively connects or disconnects from the guide post at the corresponding predetermined position.

[0019] Optionally, the pressure elastic element is disposed on the proximal side of the first clamping block, or the pressure elastic element is disposed on the distal side of the rotating block.

[0020] Optionally, the clamping mechanism further includes a second clamping block group, which is disposed on the proximal side of the first clamping block group.

[0021] Compared with the prior art, the fixing clip of the present invention has the following advantages:

[0022] The aforementioned fixing clamp includes a guide post, a clamping mechanism, and an axial limiting member; the clamping mechanism includes at least a first clamping block assembly, a rotating block, and a pressure elastic member; the first clamping block assembly includes a first clamping block and a second clamping block disposed at the distal end of the first clamping block; the distal end of the second clamping block is provided with a first inclined surface, and the first inclined surface is provided with a first tooth; the proximal end of the rotating block is provided with a second inclined surface, and the second inclined surface is provided with a second tooth, the second tooth engaging with the first tooth to allow the rotating block to rotate unidirectionally relative to the second clamping block; the axial limiting member can be connected to the guide post at a predetermined position on the guide post to clamp the clamping block. The clamping mechanism is restricted to a predetermined range in the axial direction of the guide post. At least a portion of the structure of the axial limiting member is also capable of disengaging from the guide post at the predetermined position to allow the clamping mechanism to at least partially disengage from the predetermined range. When the axial limiting member restricts the clamping mechanism within the predetermined range, and the rotating block rotates relative to the second clamping block, the rotating block also moves relative to the second clamping block in a proximal-to-distal direction to compress the pressure elastic member. When at least a portion of the structure of the axial limiting member is disengaged from the guide post at the predetermined position, the pressure elastic member is allowed to elongate. Therefore, while the axial limiting member restricts the clamping mechanism within the predetermined range, the user can control the rotating block to rotate relative to the second clamping block. This causes the pressure elastic element to compress and deform, storing elastic potential energy. This elastic potential energy is then used to create sufficient clamping between the first and second clamping blocks, clamping the target object located between them. Furthermore, since the rotating block can only rotate unidirectionally relative to the second clamping block, clamping failure due to reverse rotation of the rotating block is avoided. When it is necessary to release the target object, the user can control at least a portion of the axial limiting member to disengage from the guide post at the predetermined position, causing the pressure elastic element to extend and release its elastic potential energy. Thus, this clamping device offers the advantages of simple and convenient clamping operation, as well as stable and reliable clamping. Attached Figure Description

[0023] The accompanying drawings are provided to better understand the invention and are not intended to unduly limit the scope of the invention. Wherein:

[0024] Figure 1 This is a schematic diagram of the fixing clip provided in Embodiment 1 of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the first clamping block and the guide post of the fixing clamp provided in Embodiment 1 of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the second clamping block of the fixing clamp provided in Embodiment 1 of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the second clamping block of the fixing clamp provided in Embodiment 1 of the present invention. Figure 4 and Figure 3 The observation directions are different;

[0028] Figure 5 This is a schematic diagram of the first inclined surface and the first tooth of the second clamping block of the fixing clamp provided in Embodiment 1 of the present invention;

[0029] Figure 6 This is a schematic diagram showing the cooperation relationship between the first clamping block and the second clamping block of the fixing clamp provided in Embodiment 1 of the present invention;

[0030] Figure 7 This is a schematic diagram illustrating the cooperation relationship between the first clamping block and the second clamping block of the fixing clamp provided in Embodiment 1 of the present invention. The position of the first circumferential limiting member in the diagram is... Figure 6 The results are different;

[0031] Figure 8 This is a schematic diagram of the rotating block of the fixing clamp provided in Embodiment 1 of the present invention;

[0032] Figure 9 This is a schematic diagram of the rotating block of the fixing clamp provided in Embodiment 1 of the present invention. Figure 9 and Figure 8 The observation directions are different;

[0033] Figure 10 This is a schematic diagram of the connection relationship between the axial limiting member and the guide post of the fixing clamp provided in Embodiment 1 of the present invention;

[0034] Figure 11 This is a schematic diagram of the fixing clip provided in Embodiment 2 of the present invention;

[0035] Figure 12 This is a schematic diagram of the fixing clip provided according to Embodiment 2 of the present invention, and Figure 12 and Figure 11 The observation directions are different;

[0036] Figure 13 This is a schematic diagram of the fixing clip provided in Embodiment 3 of the present invention;

[0037] Figure 14 This is a schematic diagram of the fixing clip provided in Embodiment 4 of the present invention;

[0038] Figure 15 This is a schematic diagram of the fixing clip provided in Embodiment 5 of the present invention;

[0039] Figure 16This is a schematic diagram of the fixing clip provided in Embodiment Six of the present invention;

[0040] Figure 17 This is a schematic diagram of the fixing clip provided in Embodiment 7 of the present invention.

[0041] [The annotations in the attached figures are explained below]:

[0042] 10-Fixing clamp; 100-Guide post; 101-Slot; 102-Limiting groove; 200-Clamping mechanism; 201-First protrusion; 202-First recess; 210-First clamping block; 211-First clamping groove; 220-Second clamping block; 221-First inclined surface; 222-First tooth; 223-Second central through hole; 224-Clamping block body; 225-First convex wall; 226-Second clamping groove; 230-Rotating block; 231-Second inclined surface; 232- Second tooth, 233-Third central through hole, 234-Rotating block body, 235-Second convex wall, 240-Pressure elastic element, 250-Third clamping block, 251-Third clamping groove, 260-Fourth clamping block, 261-Fourth clamping groove, 300-Axial limiting element, 301-Inner hole, 310-Proximal limiting element, 320-Distal limiting element, 400-Connecting element, 410-First pin, 420-Second pin, 430-Third pin, 500-Reset elastic element. Detailed Implementation

[0043] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show components related to the present invention and are not drawn according to the actual number, shape, and size of components in the actual implementation. In the actual implementation, the type, quantity, and proportion of each component can be arbitrarily changed, and the component layout may also be more complex.

[0044] Furthermore, while each embodiment described below possesses one or more technical features, this does not imply that users of the present invention must simultaneously implement all technical features in any embodiment, or can only separately implement some or all technical features in different embodiments. In other words, provided it is feasible, those skilled in the art can, based on the disclosure of the present invention and depending on design specifications or implementation requirements, selectively implement some or all technical features in any embodiment, or selectively implement a combination of some or all technical features in multiple embodiments, thereby increasing the flexibility in implementing the present invention.

[0045] As used herein, the singular forms “a,” “an,” and “the” include plural objects, and the plural form “a plurality” includes two or more objects, unless otherwise expressly indicated. As used herein, the term “or” is generally used to include the meaning of “and / or,” unless otherwise expressly indicated, and the terms “install,” “connect,” and “link” should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Connections can be mechanical or electrical. Connections can be direct or indirect through an intermediate medium, and can represent internal communication between two elements or an interaction between two elements. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] To make the objectives, advantages, and features of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clearly illustrate the objectives of the embodiments of the present invention. The same or similar reference numerals in the drawings represent the same or similar parts.

[0047] like Figure 1 , Figures 11 to 17 As shown, this embodiment of the invention provides a fixing clamp 10, which includes a guide post 100, a clamping mechanism 200, and an axial limiting member 300. Both the clamping mechanism 200 and the axial limiting member 300 are disposed on the guide post 100. The clamping mechanism 200 includes at least a first clamping block 210, a second clamping block 220, a rotating block 230, and a pressure elastic member 240. The second clamping block 220 is disposed on the distal end of the first clamping block 210 and together with the first clamping block 210 constitutes a first clamping block group. A first inclined surface 221 is provided on the distal end of the second clamping block 220, and a first tooth 222 (e.g., ...) is provided on the first inclined surface 221. Figure 4 and Figure 5 (As shown). The rotating block 230 has a second inclined surface 231 on its proximal end, and a second tooth 232 is provided on the second inclined surface 231 (as shown). Figure 9As shown), the second tooth 232 engages with the first tooth 222 to allow the rotating block 230 to rotate unidirectionally relative to the second clamping block 220. The axial limiting member 300 can be connected to the guide post 100 at a predetermined position on the guide post 100 to limit the clamping mechanism 200 within a predetermined range in the axial direction of the guide post 100. At least a portion of the structure of the axial limiting member 300 can also be disengaged from the guide post 100 at the predetermined position to allow the clamping mechanism 200 to at least partially disengage from the predetermined range. When the axial limiting member 300 restricts the clamping mechanism 200 within the predetermined range, and the rotating block 230 rotates relative to the second clamping block 220, guided by the first inclined surface 221 and the second inclined surface 231, the rotating block 230 also moves relative to the second clamping block 220 in a proximal-to-distal direction. Since the clamping mechanism 200 is restricted within the predetermined range, this causes the pressure elastic member 240 to be compressed with the relative movement of the rotating block 230 and the second clamping block 220. When at least a portion of the structure of the axial limiting member 300 is disengaged from the guide post 100 at the predetermined position, the pressure elastic member 240 is allowed to elongate because at least a portion of the structure of the clamping mechanism 200 can disengage from the predetermined range.

[0048] Here, "unidirectional rotation" means that the rotating block 230 is allowed to rotate relative to the second clamping block 220 in a first direction, but is not allowed to rotate relative to the second clamping block 220 in a second direction, which is opposite to the first direction. Depending on the actual situation, the first direction can be either clockwise or counterclockwise. Figure 1 For example, the first direction is counterclockwise, and the second direction is clockwise. "The rotating block 230 moves relative to the second clamping block 220 in a proximal-to-farward direction" includes the following scenarios: the second clamping block 220 remains stationary while the rotating block 230 moves in a proximal-to-farward direction; the rotating block 230 remains stationary while the second clamping block 220 moves in a farward-to-proximal direction; and both the rotating block 230 and the second clamping block 220 move, and they move in directions away from each other (i.e., the rotating block 230 moves in a proximal-to-farward direction while the second clamping block 220 moves in a farward-to-proximal direction).

[0049] Furthermore, "compression" and "elongation" are relative concepts. In this invention, the fixing clamp 10 actually has a first state, a second state, and a third state. The first state refers to the state where the axial limiting member 300 restricts the clamping mechanism 200 within the predetermined range, and the rotating block 230 is not rotated relative to the second clamping block 220. The second state refers to the state where the axial limiting member 300 restricts the clamping mechanism 200 within the predetermined range, and the rotating block 230 has rotated relative to the second clamping block 220. The third state refers to the state where at least a portion of the structure of the axial limiting member 300 is disconnected from the guide post 100 at the predetermined position, thereby no longer restricting the clamping mechanism 200 within the predetermined range. Therefore, compression means that the length of the pressure elastic member 240 in the second state is less than its length in the first state, and elongation means that the length of the pressure elastic member 240 in the third state is greater than its length in the second state. Additionally, it is understood that when the fixing clip 10 is in the first state, the length of the pressure elastic member 240 can be the natural length (i.e., the original length) of the pressure elastic member 240, or it can be less than the natural length.

[0050] Furthermore, the terms "proximal end" and "distal end" used in this embodiment of the invention only indicate the orientation and position of each element or component relative to each other. Although "proximal end" and "distal end" are not limiting, this embodiment uses the arrangement of the first clamping block 210, the second clamping block 220, and the rotating block 230 on the guide post 100 in a proximal-to-distal direction as an example. That is, viewed from the axial direction of the guide post 100, the direction from the first clamping block 210 to the rotating block 230 is the proximal-to-distal direction, and the distal end of the first clamping block 210 is the end of the first clamping block 210 closer to the second clamping block 220, the distal end of the second clamping block 220 is the end of the second clamping block 220 away from the first clamping block 210, and the proximal end of the rotating block 230 is the end of the rotating block 230 closer to the second clamping block 220.

[0051] The fixing clamp 10 can be used in orthopedic surgery to clamp target objects such as bone pins or connecting rods. Specifically, when the clamping mechanism 200 is confined within the predetermined range, the target object is placed between the first clamping block 210 and the second clamping block 220. Then, an external force is applied to control the rotating block 230 to rotate relative to the second clamping block 220 in the first direction, thereby compressing the pressure elastic member 240 and storing elastic potential energy. This elastic potential energy can act on the first clamping block assembly, causing the first clamping block assembly to clamp the target object. Furthermore, since the rotating block 230 cannot rotate relative to the second clamping block 220 in the second direction, after the external force is removed, the rotating block 230 cannot rotate in the opposite direction, so that the elastic potential energy is maintained and the first clamping block assembly continuously clamps the target object. When it is necessary to release the target object, it is only necessary to disconnect at least a portion of the axial limiting member 300 from the guide post 100 at the predetermined position, which allows the pressurized elastic member 240 to extend and release the elastic potential energy, thereby releasing the target object. This fixing clamp 10 has the advantages of simple structure, convenient use, and stable clamping.

[0052] The structure of the fixing clip 10 will be described next through specific embodiments. Those skilled in the art will understand that the following description is merely an example of optional structures of the fixing clip 10, and is not a necessary structure, and should not be construed as unduly limiting the present invention.

[0053] <Example 1>

[0054] Figure 1 A schematic diagram of the fixing clip 10 provided in this embodiment is shown. Figure 1 As shown, the clamping mechanism 200 of this embodiment includes a first clamping block 210, a second clamping block 220, a rotating block 230, and a pressure elastic member 240. The first clamping block 210, the second clamping block 220, the rotating block 230, and the pressure elastic member 240 are arranged sequentially on the guide post 100 from the proximal end to the distal end. That is, the proximal end of the first clamping block 210 is the proximal end of the clamping mechanism 200, and the distal end of the pressure elastic member 240 is the distal end of the clamping mechanism 200. Preferably, the clamping mechanism 200 is coaxially arranged with the guide post 100.

[0055] In this embodiment, the first clamping block 210 and the guide post 100 remain axially stationary. Therefore, the axial limiting member 300 can be integrally disposed at the distal end of the pressure elastic member 240. The predetermined position is located on the distal side of the pressure elastic member 240, and the axial limiting member 300 is selectively connected or disconnected from the guide post 100 at the predetermined position. Thus, the predetermined range is the area from the proximal end of the first clamping block 210 to the predetermined position.

[0056] In detail, such as Figure 2 As shown, the first clamping block 210 can be integrally formed with the guide post 100, that is, the guide post 100 is fixedly disposed on the distal end of the first clamping block 210. Alternatively, the first clamping block 210 and the guide post 100 can be separately formed and then connected as one unit in any suitable manner. For example, the guide post 100 may have an external thread (not shown in the figure) on its proximal outer circumferential surface, and the first clamping block 210 may have a first central hole (not shown in the figure) with an internal thread on its wall. The proximal end of the guide post 100 may be inserted into the first central hole and threadedly connected to it. Thus, the first clamping block 210 and the guide post 100 remain axially relatively stationary.

[0057] Please continue to refer to this. Figure 1 and combined Figures 3 to 5 The second clamping block 220 has a second central through hole 223, through which it is sleeved onto the guide post 100. The second clamping block 220 may include a clamping block body 224 and a first convex wall 225, the first convex wall 225 being disposed on the distal end face of the clamping block body 224. The second central through hole 223 penetrates both the clamping block body 224 and the first convex wall 225. A plurality of first inclined surfaces 221 are formed at the distal end of the first convex wall 225. These first inclined surfaces 221 are arranged circumferentially around the second central through hole 223, and all first inclined surfaces 221 have the same inclination direction. Looking from the proximal end to the distal end, the height of the first inclined surface 221 gradually increases counterclockwise. The height of the first inclined surface 221 refers to the distance from any point on the first inclined surface 221 to the distal end face of the second clamping block 220.

[0058] Please refer to Figure 5 and Figure 6Preferably, the first clamping block 210 and the second clamping block 220 remain circumferentially stationary. Optionally, one of the distal end of the first clamping block 210 and the proximal end of the second clamping block 220 is provided with a first protrusion 201, and the other is provided with a first recess 202. The first protrusion 201 is inserted into the first recess 202, so that the second clamping block 220 and the first clamping block 210 remain circumferentially stationary. In some embodiments, such as Figure 5 As shown, the first protrusion 201 is provided at the middle portion of the distal end face of the first clamping block 210, and the first recess 202 is provided at the middle portion of the proximal end face of the second clamping block 220. Alternatively, in some other embodiments, such as Figure 6 As shown, the first recess 202 is provided at the edge of the distal end face of the first clamping block 210, and the first protrusion 201 is provided at the edge of the proximal end face of the second clamping block 220.

[0059] In some alternative implementations, since the first clamping block is already relatively stationary with respect to the guide post, a first protrusion and a first recess can be provided between the guide post and the second clamping block to keep the second clamping block circumferentially relatively stationary with respect to the guide post, thereby keeping the second clamping block and the first clamping block circumferentially relatively stationary. For example, the first protrusion is provided on the outer circumferential surface of the guide post, and the first recess is provided on the wall of the second central through hole (not shown in the figure). Alternatively, the first protrusion is provided on the wall of the second central through hole, and the first protrusion is provided on the outer surface of the guide post (not shown in the figure).

[0060] In a further improvement, a first clamping groove 211 may be provided on the distal end face of the first clamping block 210, and a second clamping groove 226 may be provided on the proximal end face of the second clamping block 220. The second clamping groove 226 is correspondingly provided with the first clamping groove 211 and together forms a first clamping space. The first clamping space is used to accommodate the target object. In this way, each time the target object is clamped, the position of the target object on the first clamping block assembly can be kept unchanged, and the clamping is more stable. Those skilled in the art will understand that, in order to ensure that the first clamping block assembly can effectively clamp the target object, the cross-section of the first clamping groove 211 and the cross-section of the second clamping groove 226 should be less than 1 / 4 of a circle.

[0061] Please continue to refer to this. Figure 1 and combined Figure 8 and Figure 9The rotating block 230 has a third central through hole 233, through which it is sleeved onto the guide post 100. The rotating block 230 may include a rotating block body 234 and a second convex wall 235, the second convex wall 235 being disposed on the proximal end face of the rotating block body 234. The third central through hole 233 penetrates both the rotating block body 234 and the second convex wall 235. A plurality of second inclined surfaces 231 are formed at the proximal end of the second convex wall 235, the plurality of second inclined surfaces 231 being arranged circumferentially at intervals along the third central through hole 233, and all second inclined surfaces 231 having the same inclination direction corresponding to the inclination direction of the first inclined surface 222. In this embodiment, viewed from the proximal end to the distal end, the height of the second inclined surface 231 gradually decreases in a counterclockwise direction; the height of the second inclined surface 231 refers to the distance from any point on the second inclined surface 231 to the proximal end face of the rotating block body 234. Furthermore, it is preferable that the cross-section of the rotating block body 234 is a regular hexagon, which facilitates the application of external force to the rotating block 230 using a hexagonal wrench to rotate the rotating block 230 along the first direction. In an alternative implementation, the cross-section of the rotating block body 234 may also be rectangular or other shapes.

[0062] In this embodiment, the pressure-applying elastic element 240 can be a spring. Please return to the reference. Figure 1 The number of springs can be one, and one spring is sleeved on the guide post 100.

[0063] Please continue to refer to this. Figure 1 and combined Figure 10The axial limiting member 300 has an inner hole 301, through which it is sleeved onto the guide post 100. The axial limiting member 300 also has a through hole (not shown in the figure), which extends radially along the guide post 100 and penetrates the axial limiting member 300 radially. The fixing clamp 10 further includes a connector 400, which is used to selectively connect or disconnect the axial limiting member 300 from the guide post 100 at a predetermined position. Optionally, the guide post 100 has a slot 101 as the predetermined position, that is, the predetermined range is the area from the proximal end of the first clamping block 210 to the slot 101. The connector 400 is a pin that passes through the through hole and inserts into the slot 101, so that the axial limiting member 300 is connected to the guide post 100 and prevents the axial limiting member 300 from moving axially along the guide post 100. Here, the connection between the axial limiting member 300 and the guide post 100 means that the two are fixedly connected, so that the axial limiting member 300 and the guide post 100 remain relatively stationary.

[0064] For further information, please continue to refer to [link / reference]. Figure 10 The fixing clamp 10 further includes a reset elastic element 500. The slot 101 can extend continuously around the circumference of the guide post 100 (that is, the slot 101 is an annular groove extending 360°). The pin includes a first pin 410, a second pin 420, and a third pin 430, which are connected sequentially to form a Z-shaped structure. The second pin 420 and the third pin 430 are located in the inner hole of the axial limiting member 300. The free end of the first pin 410 passes through the through hole and extends to the outside of the axial limiting member 300. One end of the reset elastic element 500 is connected to the second pin 420, and the other end is connected to the guide post 100. When the free end of the third pin 430 is inserted into the slot 101, the axial limiting member 300 is connected to the guide post 100. When the free end of the third pin 430 disengages from the slot 101, since the reset elastic member 500 is a flexible connector, it cannot keep the axial limiting member 300 fixedly connected to the guide post 100 and relatively stationary, thus it cannot prevent the axial limiting member 300 from moving along the axial direction of the guide post 100, thereby disengaging the axial limiting member 300 from the guide post 100. Here, the free end of the first pin 410 refers to the end of the first pin 410 away from the second pin 420, and the free end of the third pin 430 refers to the end of the third pin 430 away from the second pin 420.

[0065] In addition, an annular limiting groove 102 can be provided on the guide post 100. When the free end of the third pin 430 disengages from the slot 101, the axial limiting member 300 can move to the limiting groove 102 to prevent the axial limiting member 102 from disengaging from the guide post 100.

[0066] In an alternative implementation, the guide post 100 may be provided with a threaded hole, and the connector 400 may be a threaded connector such as a screw or bolt.

[0067] When assembling the fixing clamp 10, the second clamping block 220, the rotating block 230, the pressure elastic member 240, and the axial limiting member 300 are sequentially fitted onto the guide post 100, and the second tooth 232 engages with the first tooth 222. The second pin 420 of the pin is connected to the guide post 100 through the reset elastic member 500, and the free end of the first pin 410 passes through the through hole. The free end of the third pin 430 is inserted into the slot 101, so that the axial limiting member 300 is connected to the guide post 100, and the proximal end of the axial limiting member 300 abuts against the distal end of the pressure elastic member 240.

[0068] When clamping the target object, the target object is first placed within the first clamping space. It is understood that the user can increase the distance between the second clamping block 220 and the first clamping block 210 by applying an external force from proximal to distal to the second clamping block 220, causing the second clamping block 220 to move away from the first clamping block 210, thus facilitating the placement of the target object into the first clamping space. The external force can then be released. Next, the rotating block 230 is rotated relative to the second clamping block 220 in the first direction. At this time, the second clamping block 220 remains stationary, while the rotating block 230 moves from proximal to distal, compressing the pressure elastic element 240, until the first clamping block 210 and the second clamping block 220 clamp the target object.

[0069] When disassembling the target object, a third external force is applied to the free end of the first pin 410 to cause the first pin 410 to tilt radially relative to the guide post 100. Figure 10 Taking the indicated orientation as an example, the first pin 410 rotates counterclockwise and tilts radially relative to the guide post 100. This causes the free end of the third pin 430 to lift and disengage from the slot 101, thereby disengaging the axial limiting member 300 from the guide post 100. Consequently, the pressure elastic member 240 releases its elastic potential energy and releases the target object.

[0070] <Example 2>

[0071] like Figure 11 and Figure 12 As shown, the difference between this embodiment and Embodiment 1 is that the clamping mechanism 200 further includes a third clamping block 250 and a fourth clamping block 260 arranged sequentially along the axial direction of the guide post 100. The third clamping block 250 and the fourth clamping block 260 cooperate with each other to form a second clamping block group, which is used to clamp another target object. For ease of distinction, in this embodiment, the target object clamped by the first clamping block group is referred to as the first target object, and the target object clamped by the second clamping block group is referred to as the second target object.

[0072] For more details, please refer to the following: Figure 11 and Figure 12 In this embodiment, the third clamping block 250 is disposed on the distal end side of the pressure elastic member 240, and the fourth clamping block 260 is disposed on the distal end side of the third clamping block 260. That is, the distal end of the clamping mechanism 200 is the distal end of the fourth clamping block 260. Thus, when the axial limiting member 300 is connected to the guide post 100, the axial limiting member 300 limits the distal end of the fourth clamping block 260, thereby indirectly limiting the distal end of the pressure elastic member 240.

[0073] Preferably, the third clamping block 250 and the fourth clamping block 260 are configured to remain circumferentially stationary. Specifically, one of the distal end of the third clamping block 250 and the proximal end of the fourth clamping block 260 may have a second protrusion (not shown in the figure), and the other may have a second recess (not shown in the figure), with the second protrusion inserted into the second recess. It can be understood that when the fixing clamp 10 is assembled (at which point the axial limiting member 300 is connected to the guide post 100), and no second target object is placed between the third clamping block 250 and the fourth clamping block 260, the distal end of the second protrusion contacts the bottom of the second recess.

[0074] For further information, please continue to refer to [link / reference]. Figure 11 and Figure 12 The third clamping block 250 may also be provided with a third clamping groove 251, and the fourth clamping block 260 may be provided with a fourth clamping groove 261. The fourth clamping groove 261 is correspondingly provided with the third clamping groove 251, so that a second clamping space is formed between the fourth clamping groove 261 and the third clamping groove 251. The second clamping space is used to accommodate the second target object, so as to ensure that the position of the second target object on the third clamping block 250 and the fourth clamping block 260 is fixed each time the second target object is clamped, and to improve the clamping stability. Similarly, the cross-section of the third clamping groove 251 and the cross-section of the fourth clamping groove 261 should be less than 1 / 4 of a circle.

[0075] In addition, the second clamping block assembly can also move circumferentially relative to the guide post 100 to adjust the angle between the first clamping space and the second clamping space, thereby adjusting the relative position between the first target object and the second target object.

[0076] <Example 3>

[0077] like Figure 13 As shown, the difference between this embodiment and Embodiment 2 is that the second clamping block group is located on the proximal side of the pressure elastic member 240, that is, the distal end of the pressure elastic member 240 is the distal end of the clamping mechanism 200.

[0078] <Example 4>

[0079] like Figure 14 As shown, the difference between this embodiment and Embodiment 1 is that the first clamping block 210 can move axially along the guide post 100. Thus, the predetermined positions include a first predetermined position located on the proximal side of the clamping mechanism 200 and a second predetermined position located on the distal side of the clamping mechanism 200. The axial limiting member 300 includes a proximal limiting member 310 and a distal limiting member 320. The proximal limiting member 310 is disposed at the first predetermined position, and the distal limiting member 320 is disposed at the second predetermined position. Furthermore, at least one of the proximal limiting member 310 and the distal limiting member 320 is selectively connected to or disconnected from the guide post 100 at the corresponding predetermined position. For example, the proximal limiting member 310 is fixedly connected to the guide post 100 at the first predetermined position, and the distal limiting member 320 is selectively connected to or disconnected from the guide post 100 at the second predetermined position. Therefore, the predetermined interval is the area between the first predetermined position and the second predetermined position. When the distal limiting member 320 is connected to the guide post 100 at the second predetermined position, the axial limiting member 300 restricts the holding mechanism 200 within the predetermined range. When the distal limiting member 320 is disconnected from the guide post 100 at the second predetermined position, the axial limiting member 300 no longer restricts the clamping mechanism within the predetermined range.

[0080] Please continue to refer to this. Figure 14The difference between this embodiment and Embodiment 1 lies in that the pressure-applying elastic element 240 is located on the proximal side of the first clamping block 210. That is, the proximal end of the pressure-applying elastic element 240 is the proximal end of the clamping mechanism 200 and abuts against the proximal limiting member 310, while the distal end of the rotating block 230 is the distal end of the clamping mechanism 200 and abuts against the distal limiting member 320. Thus, when the rotating block 230 rotates relative to the second clamping block 220 in the first direction, the rotating block 230 remains stationary, while the second clamping block 220 moves from the distal end to the proximal end.

[0081] <Example 5>

[0082] like Figure 15 As shown, the difference between this embodiment and embodiment four is that the pressure elastic member 240 is located on the far end side of the rotating block 230, that is, the far end of the pressure elastic member 240 abuts against the far end limiting member 320, and the proximal end of the first clamping block 210 abuts against the proximal end limiting member 310.

[0083] <Example 6>

[0084] like Figure 16 As shown, the difference between this embodiment and Embodiment 4 is that the clamping mechanism 200 further includes a second clamping block group, namely, a third clamping block 250 and a fourth clamping block 260, with the fourth clamping block 260 disposed on the proximal side of the third clamping block 250. The second clamping block group is disposed on the proximal side of the first clamping block 210 and located on the distal side of the pressure elastic member 240.

[0085] <Example 7>

[0086] like Figure 17 As shown, the difference between this embodiment and Embodiment Six is ​​that the second clamping block group is located on the proximal side of the pressurized elastic member 240.

[0087] In the fixing clamp provided by this embodiment of the invention, the engagement of the first inclined surface on the second clamping block and the second inclined surface on the rotating block, along with the direct or indirect limiting of the pressure elastic element by the axial limiting member, allows the rotating block to move relative to the clamping block in a proximal-to-distal direction while rotating relative to the second clamping block in a first direction, compressing the pressure elastic element. Utilizing the elastic potential energy of the pressure elastic element, the second clamping block and the first clamping block can clamp the target object together. Furthermore, the engagement of the first and second teeth prevents the rotating block from rotating in a second direction opposite to the first direction, keeping the pressure elastic element in a compressed state, thus maintaining its elastic potential energy and ensuring the clamping of the target object by the second and first clamping blocks. Only after the axial limiting member releases its restriction on the pressure elastic element can the pressure elastic element release its elastic potential energy and release the clamping of the target object. This fixing clamp has the advantages of simple and convenient assembly and disassembly, and stable clamping.

[0088] While the present invention has been disclosed above, it is not limited thereto. Those skilled in the art can make various modifications and variations to the present invention without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, the present invention also intends to include such modifications and variations.

Claims

1. A fixing clip, characterized in that, include: Guide pillar; A clamping mechanism is disposed on the guide post and includes at least a first clamping block assembly, a rotating block, and a pressure elastic element; the first clamping block assembly includes a first clamping block and a second clamping block disposed at the distal end of the first clamping block; the rotating block is disposed at the distal end of the second clamping block and cooperates with the second clamping block so that the rotating block can rotate unidirectionally relative to the second clamping block and also move relative to the second clamping block in a proximal-to-distal direction; the pressure elastic element is disposed at the proximal end of the first clamping block or at the distal end of the rotating block. as well as, An axial limiting member is capable of connecting to the guide post at a predetermined position on the guide post to limit the clamping mechanism within a predetermined range in the axial direction of the guide post. At least a portion of the structure of the axial limiting member is also capable of disconnecting from the guide post at the predetermined position to allow the clamping mechanism to at least partially disengage from the predetermined range. When the axial limiting member restricts the clamping mechanism within the predetermined range, and the rotating block rotates relative to the second clamping block, the pressure elastic member is compressed; when at least a portion of the structure of the axial limiting member is disengaged from the guide post at the predetermined position, the pressure elastic member is allowed to elongate.

2. The fixing clip according to claim 1, characterized in that, The second clamping block has a first inclined surface at its distal end, and a first tooth on the first inclined surface; the rotating block has a second inclined surface at its proximal end, and a second tooth on the second inclined surface, the second tooth engaging with the first tooth to allow the rotating block to rotate unidirectionally relative to the second clamping block.

3. The fixing clip according to claim 1, characterized in that, The second clamping block is configured to remain circumferentially stationary with respect to the first clamping block, and the first clamping block has a first clamping groove on its distal end face and a second clamping groove on its proximal end face. The first clamping groove and the second clamping groove are correspondingly arranged and together form a first clamping space.

4. The fixing clip according to claim 1, characterized in that, The first clamping block is configured to remain axially stationary relative to the guide post, the pressure elastic element is disposed on the distal end side of the rotating block, and the axial limiting element is disposed on the distal end side of the pressure elastic element.

5. The fixing clip according to claim 4, characterized in that, The clamping mechanism further includes a second clamping block group, which is disposed on the distal side of the rotating block. The second clamping block group includes a third clamping block and a fourth clamping block arranged sequentially along the axial direction of the guide post.

6. The fixing clip according to claim 5, characterized in that, The second clamping block assembly is disposed on the distal or proximal side of the pressurized elastic member.

7. The fixing clip according to claim 5, characterized in that, The third clamping block and the fourth clamping block are configured to remain circumferentially stationary. The fourth clamping block is located at the distal end of the third clamping block, and the distal end face of the third clamping block is provided with a third clamping groove. The proximal end face of the fourth clamping block is provided with a fourth clamping groove. The fourth clamping groove and the third clamping groove are correspondingly arranged and together form a second clamping space; and / or, The second clamping block assembly is configured to generate circumferential movement relative to the guide post.

8. The fixing clip according to claim 4, characterized in that, The axial limiting member has an inner hole, and the axial limiting member is fitted onto the guide post through the inner hole; the fixing clamp also includes a connector, which is used to connect or disconnect the axial limiting member from the guide post at the predetermined position.

9. The fixing clip according to claim 8, characterized in that, The guide post has an annular groove at its distal end to serve as the predetermined position, and the axial limiting member also has a through hole extending radially along the guide post; the connector has a Z-shaped structure and includes a first pin, a second pin, and a third pin connected in sequence; the second pin and the third pin are both located in the inner hole of the axial limiting member, and the free end of the first pin passes through the through hole and extends to the outside of the axial limiting member; the fixing clamp also includes a reset elastic member, one end of which is connected to the second pin and the other end is connected to the guide post; When the free end of the third pin is inserted into the slot, the axial limiting member is connected to the guide post; when the free end of the third pin is disengaged from the slot, the axial limiting member is disconnected from the guide post.

10. The fixing clip according to claim 1, characterized in that, The first clamping block is movable along the axial direction of the guide post; the predetermined position includes a first predetermined position located on the proximal side of the clamping mechanism and a second predetermined position located on the distal side of the clamping mechanism; the axial limiting member includes a proximal limiting member and a distal limiting member, the proximal limiting member is disposed at the first predetermined position, the distal limiting member is disposed at the second predetermined position, and at least one of the proximal limiting member and the distal limiting member is selectively connected to or disconnected from the guide post at the corresponding predetermined position.

11. The fixing clip according to claim 10, characterized in that, The pressure-applying elastic element is disposed on the proximal side of the first clamping block, or the pressure-applying elastic element is disposed on the distal side of the rotating block.

12. The fixing clip according to claim 10, characterized in that, The clamping mechanism further includes a second clamping block group, which is disposed on the proximal side of the first clamping block group.

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