A quick-mounting clip assembly and hemostatic clip

Abstract

The utility model relates to the technical field of hemostatic clamp, specifically relates to a quick -wearing type chuck assembly and hemostatic clamp, including clamp pipe, fixed base and a pair of clamping pieces, fixed base is movably arranged in the clamp pipe, and the fixed base includes oppositely arranged fixed arm, and the fixed arm between fixedly set up has the connecting body, the connecting body is columnar, in the first direction, the distance between the two points farthest apart on the connecting body is d1, in the second direction, the distance between the two points farthest apart on the connecting body is d2, the tail of clamping piece is provided with the assembly hole with opening, and the clamping piece is fixed on the fixed base through the cooperation of the connecting body and assembly hole, and the clamping piece is oppositely arranged between, the size of opening is D1, and assembly hole has inner diameter D2, d1, d2, D1 and D2 satisfy: D2>D1, d2>D1, D2>=d2>d1, the utility model is through the cooperation of the assembly hole with opening of the tail of clamping piece and the connecting body on fixed base, has realized the quick assembly of clamping piece and fixed base, to can improve production efficiency, reduce the production cost of product.

Description

Technical Field

[0001] This utility model relates to the field of hemostatic clip technology, specifically to a quick-release clip assembly and a hemostatic clip. Background Technology

[0002] With the development of endoscopic diagnosis and treatment technology, minimally invasive endoscopic treatment technology has been widely used. The medical device involved in this technology is the hemostatic clip. The hemostatic clip uses physical and mechanical methods to ligate the surrounding tissue and bleeding blood vessels, thereby closing the bleeding blood vessels and blocking the blood flow to achieve the purpose of hemostasis.

[0003] Existing hemostatic clips typically use pins to connect the clips. During assembly, the clips on both sides need to be aligned with the clip holder, and then the pin is passed through both the clip and the holder simultaneously to achieve the connection. The main drawback of this structure is that the assembly between the clips and the holder is relatively cumbersome, resulting in low production efficiency, and the addition of extra pins as necessary connecting parts increases the cost of components. Utility Model Content

[0004] To address the technical problems of existing hemostatic clips, this utility model provides a quick-assembly clip assembly and hemostatic clip. It achieves quick assembly of the clip and the fixed base by using the assembly hole with an opening at the tail of the clip and the connecting body on the fixed base, thereby improving production efficiency and reducing product production costs.

[0005] The technical solution provided by this utility model is as follows: a quick-release chuck assembly, including a clamp tube, a fixing base, and a pair of clamping plates; the fixing base is movably disposed within the clamp tube, the fixing base includes oppositely disposed fixing arms, there is a gap between the fixing arms, and a connecting body is fixedly disposed between the fixing arms; the connecting body is columnar, and in a first direction, the distance between the two farthest points on the cross-section of the connecting body is d1; in a second direction, the distance between the two farthest points on the cross-section of the connecting body is d2; wherein, the first direction and the second direction do not coincide; the tail of each clamping plate is provided with an assembly hole with an opening, and the clamping plate is fixed to the fixing base by the cooperation of the connecting body and the assembly hole, and the clamping plates are oppositely disposed; the size of the opening is D1, and the assembly hole has an inner diameter D2; d1, d2, D1, and D2 satisfy: D2 > D1; d2 > D1; D2 ≥ d2 > d1.

[0006] Optionally, the tail of the clamping piece is symmetrically provided with an extension bend near the opening, and the extension bend protrudes toward the adjacent fixing arm so that the fixing arm is clamped between the corresponding extension bends.

[0007] Optionally, a transition surface is provided at the junction of the opening and the assembly hole.

[0008] Optionally, the first direction and the second direction are orthogonal.

[0009] Optionally, the first direction is a vertical direction and the second direction is a horizontal direction.

[0010] Optionally, d1 and D1 satisfy: D1≥d1.

[0011] Optionally, a connecting part is fixedly provided at one end of the fixing base.

[0012] Optionally, the ends of the clamping pieces are provided with clamping teeth, and the clamping teeth on the opposite clamping pieces are staggered.

[0013] A hemostatic clamp includes the aforementioned quick-release clamp assembly, and further includes a handle, a sliding handle, a hose, and a spindle; one end of the hose is connected to the clamp tube, the other end of the hose is connected to the end of the handle, the sliding handle is slidably disposed on the handle, one end of the spindle passes through the hose and is connected to the fixing base, and the other end of the spindle is fixedly connected to the sliding handle.

[0014] Optionally, an electrode is fixedly mounted on the handle, and the electrode is electrically connected to the fixed base via the spindle.

[0015] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects: In view of the technical problems of defects in existing hemostatic clips, this utility model realizes quick assembly of clips and fixing bases by using the assembly hole with an opening at the tail of the clip and the connecting body on the fixing base, thereby improving production efficiency and reducing product production costs. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the quick-release chuck assembly proposed in an embodiment of this utility model.

[0017] Figure 2 This is a cross-sectional view of the quick-release chuck assembly proposed in an embodiment of the present invention.

[0018] Figure 3 This is one of the structural schematic diagrams of the clip proposed in the embodiments of this utility model.

[0019] Figure 4 This is the second schematic diagram of the clip structure proposed in the embodiment of this utility model.

[0020] Figure 5 This is a schematic diagram of the structure of the fixing base proposed in an embodiment of the present utility model.

[0021] Figure 6This is a cross-sectional structural diagram of the fixing seat proposed in an embodiment of the present utility model.

[0022] Figure 7 This is one of the schematic diagrams illustrating the installation process of the quick-release chuck assembly proposed in this embodiment of the utility model.

[0023] Figure 8 This is the second schematic diagram of the installation process of the quick-release clamp assembly proposed in this embodiment of the utility model.

[0024] Figure 9 This is the third schematic diagram illustrating the installation process of the quick-release clamp assembly proposed in this embodiment of the utility model.

[0025] Figure 10 This is the fourth schematic diagram illustrating the installation process of the quick-release chuck assembly proposed in this embodiment of the present invention.

[0026] Figure 11 The fifth illustration shows the installation process of the quick-release chuck assembly proposed in this embodiment of the utility model.

[0027] Figure 12 This is the sixth schematic diagram illustrating the installation process of the quick-release chuck assembly proposed in this embodiment of the utility model.

[0028] Figure 13 This is the seventh schematic diagram illustrating the installation process of the quick-release chuck assembly proposed in this embodiment of the present invention.

[0029] Figure 14 This is a schematic diagram of the hemostatic clip proposed in an embodiment of the present invention. Detailed Implementation

[0030] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0031] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the utility model. Furthermore, it should be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. The terms "first," "second," etc., used in this utility model are provided for the convenience of describing the technical solution of this utility model and have no specific limiting effect; they are all general terms and do not constitute a limitation on the technical solution of this utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contradict or conflict, all of which are within the scope of protection claimed by this utility model.

[0032] Example 1 Combined with appendix Figure 1 To be continued Figure 13 This embodiment proposes a quick-release chuck assembly, including a fixed base 2 and a pair of clamping plates 3. The fixed base 2 is movably disposed within the clamp tube 1. The fixed base 2 includes fixed arms 20 disposed opposite each other, with a gap between the fixed arms 20. A connecting body 21 is fixedly disposed between the fixed arms 20.

[0033] The connector 21 is columnar. In the first direction, the distance between the two farthest points on the cross section of the connector 21 is d1; in the second direction, the distance between the two farthest points on the cross section of the connector 21 is d2; wherein the first direction and the second direction do not coincide.

[0034] The clamping piece 3 has an assembly hole 31 with an opening 30 at its tail. The clamping piece 3 is fixed to the fixing base 2 by the cooperation of the connector 21 with the assembly hole 31, and the clamping pieces 3 are arranged opposite to each other. The size of the opening 30 is D1, and the assembly hole 31 has an inner diameter D2.

[0035] In this embodiment, d1, d2, D1 and D2 satisfy: D2>D1; d2>D1; D2≥d2>d1.

[0036] In this embodiment, the connecting body 21 can be a column with a regular or irregular geometric shape such as an ellipse, rectangle, rounded rectangle, or oval cross-section. Specifically, in conjunction with the attached... Figure 6 In this embodiment, the connecting body 21 is a cylinder with an oval cross-section, for attaching Figure 6 Taking the orientation relationship shown as an example, the oval cross-section of the main body is horizontally oriented, meaning the maximum width in the vertical direction is d1, and the maximum width in the horizontal direction is d2. (Referring to the attached...) Figure 6 As shown, in this embodiment, the first direction and the second direction are perpendicular to each other. Specifically, the first direction is vertical and the second direction is horizontal.

[0037] Correspondingly, with attachment Figure 4 Taking the orientation relationship shown as an example, the clip 3 is placed vertically, the mounting hole 31 is circular with its opening 30 facing downwards, the size of the opening 30 is D1, and the mounting hole 31 has an inner diameter D2. Of course, in other embodiments, the mounting hole 31 can be other geometric shapes.

[0038] Furthermore, in conjunction with the appendix Figure 7 To be continued Figure 13 When it is necessary to assemble a clip 3 onto the fixed base 2, the installation process of the quick-release chuck assembly in this embodiment is as follows: Combine with the attached... Figure 7 First, place the fixing base 2 vertically and the tail of the clamp 3 horizontally so that the opening 30 at the tail of the clamp 3 in the horizontal direction is aligned with the connector 21, and at this time the opening 30 corresponds to the outline of the connector 21 in the first direction.

[0039] Combined with appendix Figure 8 Then, the clip 3 is moved horizontally toward the connector 21 so that the connector 21 passes through the opening 30 and mates with the assembly hole 31. Generally, d1 and D1 are set to be equal, or d1 is slightly less than D1. When d1 is slightly less than D1, the connector 21 passes through the opening 30 more easily, making assembly more convenient and efficient.

[0040] Combined with appendix Figure 9When the connector 21 enters the assembly hole 31 through the opening 30, the clamp 3 is rotated so that the assembly hole 31 rotates relative to the connector 21. Since D2≥d2, when the clamp 3 rotates, there is almost no obstruction between the outline of the connector 21 and the inner wall of the assembly hole 31. After the clamp 3 is installed, the clamp 3 still has a certain degree of freedom of movement so that the clamp 3 can be opened and closed flexibly when the clamp assembly is used. However, since d2>D1, it can still be ensured that the clamp 3 does not separate from the connector 21, and finally a quick assembly between the clamp 3 and the fixed seat 2 is achieved.

[0041] Combined with appendix Figure 11 To be continued Figure 13 Once one clip 3 is assembled, the other clip 3 can be installed. The installation process of the other clip 3 is the same as above, and will not be repeated here.

[0042] Combined with appendix Figure 3 In a further embodiment, the tail of the clamping piece 3 is symmetrically provided with extending bent portions 32 near the opening 30. The extending bent portions 32 protrude towards the adjacent fixing arms 20, so that the fixing arms 20 are clamped between the corresponding extending bent portions 32. The extending bent portions 32 are generally sheet-like structures provided at the tail of the clamping piece 3. One pair of extending bent portions 32 are provided at the tail of each clamping piece 3. For a single clamping piece 3, the pair of extending bent portions 32 can "clamp" the fixing arm 20 adjacent to that clamping piece 3, thereby ensuring that the clamping piece 3 does not easily rotate relative to the connecting body 21, thus playing a positioning role for the clamping piece 3 and enhancing the stability of the clamping piece 3. Furthermore, the provision of extending bent portions 32 can strengthen the local strength of the tail of the clamping piece 3, thereby enhancing the rigidity of the clamping piece 3 and improving its durability and stability.

[0043] Combined with appendix Figure 3 In another embodiment, a transition surface 33 is provided at the junction of the opening 30 at the tail of the clamping piece 3 and the mounting hole 31. This transition surface 33 is generally curved or inclined, so that when the mounting hole 31 rotates relative to the clamping piece 3, the contour edge of the connecting body 21 is less likely to be blocked or jammed with the junction of the opening 30 and the mounting hole 31, thereby further improving the assembly convenience of the quick-release clamping assembly.

[0044] Similarly, in other embodiments, the opening 30 at the tail of the clip 3 may be provided with a rounded chamfer or a beveled chamfer to make the insertion of the connector 21 into the opening 30 smoother.

[0045] In the aforementioned embodiment, the clamp 3 is rotated from the horizontal direction to the vertical direction to complete the assembly. In actual implementation, the first direction and the second direction can be two non-overlapping directions. The opening 30, the assembly hole 31 and the connecting body 21 can meet the size requirements corresponding to d1, d2, D1 and D2. At this time, the assembly of the clamp 3 can be completed by simply rotating it.

[0046] The quick-release clamp assembly of this embodiment generally also includes a clamp tube 1. The clamp tube 1 is a component that connects the clamp assembly to the rest of the hemostatic clamp (mainly the sheath end), and is also a structure used to tighten the clamp piece 3 to close the clamp piece 3. The clamp tube 1 is the conventional structure of the hemostatic clamp, and will not be described in detail here.

[0047] And, in conjunction with the appendix Figure 5 In other embodiments, a connecting portion 22 is fixedly provided at one end of the fixing base 2. The connecting portion 22 is used to connect with the mandrel 43 of the hemostatic clip. Specifically, the connecting portion 22 can be a connecting post or a tubular structure. When the connecting portion 22 is a connecting post, a sleeve can be further provided, which is simultaneously sleeved on the mandrel 43 and the connecting post, thereby realizing the connection between the mandrel 43 and the fixing base 2. When the connecting portion 22 is a tubular structure, the mandrel 43 can be inserted into the tubular structure to realize the connection between the fixing base 2 and the mandrel 43. After the connection between the mandrel 43 and the fixing base 2 is realized, the user can pull or push the fixing base 2 by manipulating the mandrel 43. Combined with the aforementioned clamp tube 1, when the fixing base 2 moves relative to the clamp tube 1, the clamp 3 will be retracted or pushed out of the clamp tube 1, thereby realizing the clamping or opening of the clamp 3. The conventional structure of the hemostatic clip is the mandrel 43, which will not be described in detail here.

[0048] And, in conjunction with the appendix Figure 4 The end of the clip 3 is provided with clamping teeth 34. Preferably, the clamping teeth 34 on the oppositely arranged clip 3 are interlaced. This interlaced clamping helps the clip 3 to close more tightly, ensuring that the size of the end of the clip 3 is smaller when closed, thus making it easier to insert into the endoscope channel.

[0049] In summary, the quick-release chuck assembly proposed in this embodiment eliminates the use of pins in traditional chuck mechanisms, simplifies the assembly process between the clamp 3 and the clamp 3 fixing seat 2, improves production efficiency, and effectively reduces component costs by eliminating the additional pins as necessary connecting parts.

[0050] Example 2 Combined with appendix Figure 1-4This embodiment proposes a hemostatic clip, which includes the quick-release clamp assembly described in the technical solution of embodiment 1, and also includes a handle 40, a sliding handle 41, a hose 42 and a spindle 43; one end of the hose 42 is connected to the clamp tube 1, and the other end of the hose 42 is connected to the end of the handle 40; the sliding handle 41 is slidably disposed on the handle 40; one end of the spindle 43 passes through the hose 42 and is connected to the fixing seat 2; and the other end of the spindle 43 is fixedly connected to the sliding handle 41.

[0051] In this embodiment, the working principle of the hemostatic clip is as follows: the entire clip assembly is connected to the handle 40 via the spindle 43 and the flexible tube 42. When the sliding handle 41 is pushed or pulled, the sliding handle 41 drives the fixed seat 2 to move axially within the clamp tube 1, thereby causing the clip 3 to retract into or extend out of the clamp tube 1. When the clip 3 is retracted into the clamp tube 1, the clip 3 abuts against the inner wall of the clamp tube 1, and the clamp tube 1 constrains the clip 3, causing the clips 3 on both sides to close. Conversely, when the clip 3 is extended out of the clamp tube 1, the clamp tube 1 no longer constrains the clip 3, and the clip 3 naturally opens.

[0052] In a further embodiment, an electrode 44 is fixedly mounted on the handle 40, and the electrode 44 is electrically connected to the fixing seat 2 via a spindle 43. In this embodiment, the hemostatic clip has an electrocoagulation function. When the electrode 44 is energized, the clip 3 can be energized through the spindle 43 and the fixing seat 2, thereby enabling the hemostatic clip to have an electrocoagulation function, that is, it can perform electrocoagulation hemostasis on diseased tissue.

[0053] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A quick-release chuck assembly, characterized in that, It includes a clamp tube (1), a fixing seat (2) and a pair of clamping plates (3); the fixing seat (2) is movably disposed inside the clamp tube (1), the fixing seat (2) includes fixing arms (20) disposed opposite to each other, there is a gap between the fixing arms (20), and a connecting body (21) is fixedly disposed between the fixing arms (20); The connector (21) is columnar. In the first direction, the distance between the two points furthest apart on the cross section of the connector (21) is d1; in the second direction, the distance between the two points furthest apart on the cross section of the connector (21) is d2; wherein the first direction and the second direction do not coincide. The clamping piece (3) is provided with an assembly hole (31) with an opening (30) at its tail. The clamping piece (3) is fixed to the fixing base (2) by the cooperation of the connector (21) and the assembly hole (31), and the clamping pieces (3) are arranged opposite to each other. The size of the opening (30) is D1, and the assembly hole (31) has an inner diameter D2. d1, d2, D1 and D2 satisfy: D2>D1; d2>D1; D2≥d2>d1.

2. The quick-release chuck assembly according to claim 1, characterized in that, The clamping piece (3) has symmetrically arranged extended bending portions (32) near the opening (30) at its tail end. The extended bending portions (32) protrude toward the adjacent fixing arm (20) so that the fixing arm (20) is clamped between the corresponding extended bending portions (32).

3. The quick-release chuck assembly according to claim 1, characterized in that, A transition surface (33) is provided at the junction of the opening (30) and the assembly hole (31).

4. The quick-release chuck assembly according to claim 1, characterized in that, The first direction and the second direction are orthogonal.

5. A quick-release chuck assembly according to claim 4, characterized in that, The first direction is the vertical direction, and the second direction is the horizontal direction.

6. A quick-release chuck assembly according to claim 1, characterized in that, The d1 and D1 satisfy: D1≥d1.

7. A quick-release chuck assembly according to claim 1, characterized in that, A connecting part (22) is fixedly provided at one end of the fixed base (2).

8. A quick-release chuck assembly according to claim 1, characterized in that, The end of the clamping piece (3) is provided with clamping teeth (34), and the clamping teeth (34) on the opposite clamping pieces (3) are staggered.

9. A hemostatic clip, characterized in that, The quick-release chuck assembly according to any one of claims 1-8 further includes a handle (40), a sliding handle (41), a hose (42), and a spindle (43); one end of the hose (42) is connected to the clamp tube (1), the other end of the hose (42) is connected to the end of the handle (40), the sliding handle (41) is slidably disposed on the handle (40), one end of the spindle (43) passes through the hose (42) and is connected to the fixing seat (2), and the other end of the spindle (43) is fixedly connected to the sliding handle (41).

10. A hemostatic clip according to claim 9, characterized in that, An electrode (44) is fixedly mounted on the handle (40), and the electrode (44) is electrically connected to the fixed base (2) through the spindle (43).

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