A multi-fire ligature clip base

Abstract

The present application belongs to the technical field of medical instrument accessories, and particularly relates to a multi-release ligature clip base. In the prior art, ligature clips are mostly installed into a clip applier by a manual assembly mode of a user. Such an installation mode is time-consuming, laborious and inconvenient to operate. The present application provides a multi-release ligature clip base, which comprises a base with a cavity inside, a thimble arranged in the cavity, the thimble being fixedly connected with the base, a clip storage mechanism arranged above the thimble and capable of storing ligature clips, the clip storage mechanism being slidably connected with the base, an upper and lower through clip outlet channel arranged in the clip storage mechanism, and the end of the thimble being extended into the clip outlet channel by sliding the clip storage mechanism. The thimble is arranged in the base, and the ligature clips in the clip storage mechanism can be ejected into the clip applier through the clip outlet channel by the thimble in the assembly process. A plurality of ligature clips can be repeatedly ejected into the clip applier, so that the clip applier can release multiple clips when in use.

Description

Technical Field

[0001] This invention belongs to the field of medical device accessories technology, and in particular relates to a base for multiple ligation clips. Background Technology

[0002] Disposable ligation clips, also called closure clips, are typically injection-molded from polymer materials. They are placed on a base with a cover, packaged in a PET blister pack and dialysis paper, and then sterilized with ethylene oxide. Based on whether the material is biodegradable, they are classified as non-absorbable or absorbable ligation clips, and are for single use only. They are mainly used in surgical procedures to clamp blood vessels for hemostasis or to close tubular tissues, including small and medium-sized arteries and veins, and bile ducts. They are not suitable for large arteries and veins. Ligation clips are implantable disposable medical devices used in surgical procedures, including minimally invasive surgery, to ligate tubular tissues such as blood vessels and the cystic duct. Ligation clips are typically inserted to the target location using clamping forceps, and then the forceps head is closed to achieve clamping of the tubular tissue. Currently, most ligation clips are installed manually by the user, a time-consuming, labor-intensive, and inconvenient method.

[0003] To address this issue, people have conducted exploratory research in long-term production and daily life practices. For example, a Chinese utility model patent discloses a fixing and retrieving device for ligation clips [Application No.: 201320609651.1]. This utility model patent includes a base and a pressure plate, with the base and pressure plate engaging and locking together. The ligation clip is installed on the base, and the ligation clip engages and locks with the pressure plate. The first gear and the second gear are arranged opposite to each other. This utility model also includes an adhesive that is bonded to the bottom surface of the base.

[0004] The ligation clip fixing and retrieval device provided by this utility model can facilitate the assembly process to a certain extent. However, due to the limitation of its ligation clip assembly depth, this device can only be applied to single-clamp clamps. It cannot meet the requirement of assembling multiple ligation clips at one time for multi-clamp clamps. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a multi-clamping clip base that facilitates the assembly of the ligation clip into a multi-clamping clamp.

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

[0007] A multi-clamping clip base includes a base with an internal cavity, and a pin is provided in the cavity. The pin is fixedly connected to the base. Above the pin is a clip storage mechanism for storing ligation clips. The clip storage mechanism is slidably connected to the base. The clip storage mechanism has a vertically penetrating clip dispensing channel. Sliding the clip storage mechanism allows the end of the pin to extend into the clip dispensing channel.

[0008] In the aforementioned multiple ligation clip base, the cavity is further provided with an anti-fall limiting block fixedly connected to the base. The anti-fall limiting block is located below the storage mechanism and the storage mechanism presses against the surface of the anti-fall limiting block.

[0009] In the aforementioned multiple ligation clip base, the anti-fall limiting block includes a limiting strip extending in a vertical direction and a guide slope disposed on the upper end of the limiting strip, the thickness of which gradually decreases from one end near the limiting strip to the other end.

[0010] In the aforementioned multiple ligation clip base, the clip storage mechanism includes a first type of clip storage component that can house a ligation clip and at least one second type of clip storage component that can house a ligation clip. The first type of clip storage component and the second type of clip storage component are fixedly connected, and the second type of clip storage component is located above the first type of clip storage component. The clip dispensing channel connects the first type of clip storage component and the second type of clip storage component.

[0011] In the aforementioned multiple ligation clip base, the first type of clip assembly includes a first outer shell and a first clip cavity located within the first outer shell. The ligation clip is located within the first clip cavity, and the first clip cavity is connected to the clip dispensing channel.

[0012] In the aforementioned multiple ligation clip base, the second type of clip assembly includes a second outer shell and a second clip cavity located within the second outer shell. The second outer shell is fixedly connected to the first outer shell, and the ligation clip is located within the second clip cavity, which is connected to the clip dispensing channel.

[0013] In the aforementioned multiple ligation clip base, the second type of storage clip assembly further includes a side sliding channel connected to the second storage clip cavity. A slider located on the side of the ligation clip is slidably connected in the side sliding channel, and sliding the slider can cause one end of the slider to press against the side of the ligation clip.

[0014] In the aforementioned multiple ligation clip base, the end of the slider away from the ligation clip extends out of the second outer shell and is provided with an inclined surface. Sliding the second outer shell downwards can cause the inclined surface to press against the base.

[0015] In the aforementioned multiple ligation clip base, a limiting protrusion protrudes from the side of the slider, and limiting baffles are provided on both sides of the limiting protrusion. The limiting baffles are fixedly connected to the second outer shell, and sliding the slider can cause the limiting protrusion to press against the limiting baffles.

[0016] In the aforementioned multiple ligation clip base, one end of the ligation clip has an outward protrusion, and the other end has a groove that is recessed into the ligation clip. Moving the ligation clip allows the protrusion of one ligation clip to fit into the groove of another ligation clip.

[0017] Compared with existing technologies, the advantages of this invention are:

[0018] 1. The present invention has a push pin in the base. During the assembly process, the push pin can be used to push the ligation clip in the storage mechanism through the clip release channel into the clamping pliers. By repeating this process, multiple ligation clips can be pushed into the clamping pliers, thereby enabling multiple clamping operations when the clamping pliers are in use.

[0019] 2. The storage clamp mechanism of the present invention consists of a first type of storage clamp assembly and at least one second type of storage clamp assembly, so that multiple ligation clamps can be ejected into the clamping forceps at the same time with one ejection of the ejector pin, thereby further simplifying the assembly process of the ligation clamps. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a structural schematic diagram of a portion of the present invention;

[0024] In the figure: Cavity 1, Base 2, Ejector pin 3, Storage clamping mechanism 4, Clip dispensing channel 5, Anti-fall limiting block 6, First type of storage clamping assembly 41, Second type of storage clamping assembly 42, Limiting strip 61, Guide slope 62, Ligating clip 100, Protrusion 101, Groove 102, First outer shell 411, First storage cavity 412, Second outer shell 421, Second storage cavity 422, Side sliding channel 423, Slider 424, Slope 425, Limiting protrusion 426, Limiting baffle 427. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] Combination Figure 1 and Figure 2 As shown, a multi-clamping clip base includes a base 2 with an internal cavity 1. A pin 3 is also provided in the cavity 1. The pin 3 is fixedly connected to the base 2. A clip storage mechanism 4 for storing ligation clips 100 is provided above the pin 3. The clip storage mechanism 4 is slidably connected to the base 2. A clip dispensing channel 5 is provided in the clip storage mechanism 4, which is vertically connected. Sliding the clip storage mechanism 4 allows the end of the pin 3 to extend into the clip dispensing channel 5.

[0027] In this invention, the user holds the clamping pliers and presses the clamping pliers head open onto the upper end of the clamping mechanism 4, with the opening directly opposite the upper end of the clamping outlet channel 5. Applying force downwards causes the clamping mechanism 4 to slide down, and the tip of the ejector pin 3 gradually extends into the clamping outlet channel 5, pushing the ligation clip 100 into the clamping pliers head, thus completing the assembly of one ligation clip 100. Repeating the above operation allows multiple ligation clips 100 to be assembled into the clamping pliers head. Therefore, this invention provides an ejector pin 3 within the base 2. During assembly, the ejector pin 3 can be used to push the ligation clip 100 from the clamping mechanism 4 through the clamping outlet channel 5 into the clamping pliers. This repeated action allows multiple ligation clips 100 to be pushed into the clamping pliers, enabling multiple clamping operations during use.

[0028] Preferably, a base 2 may be provided with multiple cavities 1, and each cavity 1 is provided with a storage mechanism 4 containing a ligation clip 100, which can greatly reduce the number of bases 2 required during assembly.

[0029] like Figure 4 As shown, the cavity 1 is also provided with an anti-fall limiting block 6 fixedly connected to the base 2. The anti-fall limiting block 6 is located below the storage mechanism 4 and the storage mechanism 4 is pressed against the surface of the anti-fall limiting block 6.

[0030] Specifically, the anti-fall limiting block 6 includes a limiting strip 61 extending in a vertical direction and a guide slope 62 disposed on the upper end of the limiting strip 61. The thickness of the guide slope 62 gradually decreases from one end near the limiting strip 61 to the other end.

[0031] With this specific structure, before assembly, the anti-fall limiting block 6 supports the storage mechanism 4, preventing the entire storage mechanism 4 from falling into the cavity 1. During assembly, due to the guiding effect of the guide slope 62, the user does not need to apply too much external force to press the storage mechanism 4 into the side of the limiting strip 61.

[0032] Combination Figure 2 and Figure 3 As shown, the clamping mechanism 4 includes a first-type clamping component 41 for housing ligation clips 100 and at least one second-type clamping component 42 for housing ligation clips 100. The first-type clamping component 41 and the second-type clamping component 42 are fixedly connected, with the second-type clamping component 42 positioned above the first-type clamping component 41. The clamping channel 5 connects the first-type clamping component 41 and the second-type clamping component 42. The clamping mechanism 4 of the present invention is composed of a first-type clamping component 41 and at least one second-type clamping component 42. Thus, a single ejection of the ejector pin 3 can simultaneously eject multiple ligation clips 100 into the clamping forceps, thereby further simplifying the assembly process of the ligation clips.

[0033] Specifically, the first type of storage clip assembly 41 includes a first outer shell 411 and a first storage cavity 412 located within the first outer shell 411. The ligation clip 100 is located within the first storage cavity 412, and the first storage cavity 412 is connected to the clip dispensing channel 5. The second type of storage clip assembly 42 includes a second outer shell 421 and a second storage cavity 422 located within the second outer shell 421. The second outer shell 421 is fixedly connected to the first outer shell 411. The ligation clip 100 is located within the second storage cavity 422, and the second storage cavity 422 is connected to the clip dispensing channel 5.

[0034] like Figure 3 As shown, the second type of storage clip assembly 42 also includes a side sliding channel 423 communicating with the second storage clip cavity 422. A slider 424 located on the side of the ligation clip 100 is slidably connected in the side sliding channel 423. Sliding the slider 424 allows one end of the slider 424 to press against the side of the ligation clip 100. The end of the slider 424 away from the ligation clip 100 extends to the outside of the second outer shell 421 and is provided with an inclined surface 425. Sliding the second outer shell 421 downwards allows the inclined surface 425 to press against the base 2.

[0035] In use, the second outer shell 421 and the first outer shell 411 slide down synchronously. During the descent, the inclined surface 425 first touches the base 2. Under the reaction force of the base 2, the inclined surface 425 is forced to drive the slider 424 to slide inward along the side sliding channel 423 and press against the side of the ligation clip 100 installed in the second storage cavity 422, causing the opening of the ligation clip 100 to contract. This ensures that the lower ligation clip 100 will not embed into the upper ligation clip 100 during the ejection process, thus avoiding the problem of not being able to close the clamp during application. Continuing to slide down, the ejector pin 3 pushes into the clamp exit channel 5 and presses against the ligation clip 100 installed in the first storage cavity 412. During the ejection process, this ligation clip 100 touches the upper ligation clip 100, thereby realizing the simultaneous ejection of multiple ligation clips 100 into the clamping forceps.

[0036] Preferably, the slider 424 has a limiting protrusion 426 protruding from its side, and limiting baffles 427 are provided on both sides of the limiting protrusion 426. The limiting baffles 427 are fixedly connected to the second outer shell 421. Sliding the slider 424 allows the limiting protrusion 426 to press against the limiting baffles 427. This restricts the sliding trajectory of the slider 424 within a certain range, preventing the slider 424 from disengaging.

[0037] Preferably, one end of the ligation clip 100 has an outward protrusion 101, and the other end has a recessed groove 102. Moving the ligation clip 100 allows the protrusion 101 of one ligation clip 100 to engage with the groove 102 of another ligation clip 100. This allows adjacent ligation clips 100 to cooperate with each other through the protrusion 101 and the groove 102 during the ejection process using the ejector pin 3, improving the stability of the movement trajectory of the ligation clips 100 during the ejection process.

[0038] The working principle of this invention is as follows: When in use, the user holds the clamping pliers and presses the clamping pliers with the clamping head in the open state onto the second outer shell 421 of the second type of clamping assembly 42, with the opening facing the upper end of the clamping channel 5. The user applies force to press down the clamping pliers, causing the second outer shell 421 and the first outer shell 411 to slide down synchronously. During the sliding process, the inclined surface 425 first touches the base 2. Under the action of the reaction force of the base 2, the inclined surface 425 is forced to drive the slider 424 to slide inward along the side sliding channel 423 and press it onto the side of the ligation clip 100 installed in the second clamping cavity 422, so that the opening of the ligation clip 100 contracts. This ensures that the lower ligation clip 100 will not be embedded into the upper ligation clip 100 during the ejection process, thus avoiding the problem of not being able to clamp during clamping. As the clamp continues to slide downwards, the ejector pin 3 pushes into the clamp exit channel 5 and presses against the ligation clip 100 installed in the first clamp storage cavity 412. During the ejection process, the ligation clip 100 touches the ligation clip 100 above it. At this time, the two adjacent ligation clips 100 cooperate with each other through the protrusion 101 and the groove 102, thereby realizing the simultaneous ejection of multiple ligation clips 100 into the clamping forceps. Therefore, the present invention provides an ejector pin 3 in the base 2. During the assembly process, the ejector pin 3 can be used to push the ligation clips 100 in the clamp storage mechanism 4 into the clamping forceps through the clamp exit channel 5. By repeating this process, multiple ligation clips 100 can be pushed into the clamping forceps, thereby realizing multiple clamping during use.

[0039] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0040] Although this document frequently uses terms such as cavity 1, base 2, ejector pin 3, storage mechanism 4, clip dispensing channel 5, anti-fall limiting block 6, first type storage assembly 41, second type storage assembly 42, limiting strip 61, guide ramp 62, ligation clip 100, protrusion 101, groove 102, first outer shell 411, first storage cavity 412, second outer shell 421, second storage cavity 422, side sliding channel 423, slider 424, ramp 425, limiting protrusion 426, and limiting baffle 427, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A multi-tie clip base, comprising a base (2) having an internal cavity (1), characterized in that: The cavity (1) is also provided with a pin (3), which is fixedly connected to the base (2). Above the pin (3) is a storage mechanism (4) for storing ligation clips (100). The storage mechanism (4) is slidably connected to the base (2). The storage mechanism (4) is provided with a vertically penetrating clip outlet channel (5). Sliding the storage mechanism (4) allows the end of the pin (3) to extend into the clip outlet channel (5). The storage clamp mechanism (4) includes a first type of storage clamp assembly (41) for housing a ligation clamp (100) and at least one second type of storage clamp assembly (42) for housing a ligation clamp (100). The first type of storage clamp assembly (41) and the second type of storage clamp assembly (42) are fixedly connected and the second type of storage clamp assembly (42) is located above the first type of storage clamp assembly (41). The clamp outlet channel (5) connects the first type of storage clamp assembly (41) and the second type of storage clamp assembly (42). The first type of storage clip assembly (41) includes a first outer shell (411) and a first storage cavity (412) located inside the first outer shell (411). The ligation clip (100) is located inside the first storage cavity (412), and the first storage cavity (412) is connected to the clip outlet channel (5). The second type of storage clip assembly (42) includes a second outer shell (421) and a second storage cavity (422) located inside the second outer shell (421). The second outer shell (421) is fixedly connected to the first outer shell (411). The ligation clip (100) is located inside the second storage cavity (422). The second storage cavity (422) is connected to the clip dispensing channel (5). The second type of storage clip assembly (42) also includes a side sliding channel (423) connected to the second storage cavity (422). A slider (424) located on the side of the ligation clip (100) is slidably connected in the side sliding channel (423). Sliding the slider (424) can press one end of the slider (424) onto the side of the ligation clip (100). The slider (424) extends from the end away from the ligation clip (100) to the outside of the second outer shell (421) and is provided with a slope (425). Sliding the second outer shell (421) downwards can press the slope (425) onto the base (2).

2. The multi-needle ligation clip base as described in claim 1, characterized in that: The cavity (1) is also provided with a fall prevention limiting block (6) fixedly connected to the base (2). The fall prevention limiting block (6) is located below the storage clamping mechanism (4) and the storage clamping mechanism (4) is pressed on the surface of the fall prevention limiting block (6).

3. The multi-needle ligation clip base as described in claim 2, characterized in that: The anti-fall limiting block (6) includes a limiting strip (61) extending in the vertical direction and a guide slope (62) set on the upper end of the limiting strip (61). The thickness of the guide slope (62) gradually decreases from one end close to the limiting strip (61) to the other end.

4. The multi-needle ligation clip base as described in claim 1, characterized in that: The slider (424) has a limiting protrusion (426) protruding from its side. Both sides of the limiting protrusion (426) are provided with limiting baffles (427). The limiting baffles (427) are fixedly connected to the second outer shell (421). Sliding the slider (424) can make the limiting protrusion (426) press against the limiting baffles (427).

5. A multi-needle ligation clip base as described in claim 1, characterized in that: The ligation clip (100) has an outward protrusion (101) at one end and a groove (102) recessed into the ligation clip (100) at the other end. Moving the ligation clip (100) can cause the protrusion (101) of one ligation clip (100) to fit into the groove (102) of another ligation clip (100).

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