Patch cutting device

Abstract

The present disclosure provides a patch cutting device, comprising: a base assembly, a housing, a patch fixing frame and a linkage knife group. The base assembly has a base assembly and a first connecting arm, and the first connecting arm is arranged on the base assembly; the housing is movably connected with the base assembly, and a first through hole is arranged in the housing; the patch fixing frame is detachably arranged in the first through hole, and is used for mounting a patch to shape and / or cut the patch; the linkage knife group is movably connected with the first connecting arm and the housing, and is used for cutting the patch, wherein in response to the housing moving towards the base assembly, the free end of the linkage knife group rotates towards the inside of the housing to cut the patch.

Description

Technical Field

[0001] This disclosure relates to the field of anastomosis device technology, and more specifically, to a patch cutting device. Background Technology

[0002] The application of staplers has greatly promoted the development of modern surgery and minimally invasive surgery. By using a patch in conjunction with a stapler, the stapler can cut and close the wound while fixing the patch to the wound, sealing the staple holes, improving the strength of the wound, and thus avoiding leakage and bleeding.

[0003] To ensure that the patch is more accurately fitted to the stapler, it needs to be shaped and cut before it is installed on the stapler. Summary of the Invention

[0004] The purpose of this disclosure is to provide a patch cutting device to address the technical problems in related technologies. The specific solution is as follows:

[0005] This disclosure provides a patch cutting device, comprising: a base assembly having a base platform assembly and a first connecting arm, the first connecting arm being disposed on the base platform assembly; a housing movably connected to the base assembly, the housing having a first through hole inside; a patch fixing bracket detachably disposed in the first through hole for mounting a patch for shaping and / or cutting the patch; and a linkage blade assembly movably connected to the first connecting arm and the housing for cutting the patch, wherein, in response to the housing moving toward the base assembly, the free end of the linkage blade assembly rotates toward the interior of the housing to cut the patch.

[0006] In some embodiments, the housing further includes a channel that connects the first through hole to the outside, and the linkage blade assembly is movably disposed within the channel to cut the patch.

[0007] In some embodiments, the channel sidewall is provided with a sliding groove and a first pin hole; the linkage knife assembly includes: a first pin rod, which is slidably disposed in the sliding groove; and a second connecting arm, which is rotatably connected to the first connecting arm through the first pin rod, wherein, in response to the housing moving in the vertical direction, the sliding groove slides in the vertical direction with the first pin rod as a fixed point.

[0008] In some embodiments, the linkage blade assembly further includes: a cutting blade for cutting patches, having a second pin hole and a third pin hole; and a second pin rod passing through the second pin hole and the first pin hole for rotatably connecting the cutting blade to the housing, wherein the second connecting arm is rotatably connected to the cutting blade via the third pin hole.

[0009] In some embodiments, the base assembly includes: a base, on the side of the base facing the housing, a base platform assembly is disposed thereon, and the free end of the base platform assembly is provided with an annular blade; a support column, connected to the base and extending in the same direction as the base platform assembly; and an elastic member, sleeved on the support column, the two ends of the elastic member respectively abutting against the base and the housing.

[0010] In some embodiments, the housing includes: a first housing sleeved on the support column for restricting the movement of the linkage blade assembly; and a second housing disposed at the end of the first housing away from the base and detachably connected to the first housing.

[0011] In some embodiments, the patch cutting device further includes a top cover that engages with a channel of the housing for moving the housing under externally applied force.

[0012] In some embodiments, the top cover includes a second through hole, the edge of which is provided with a guide groove for guiding the patch holder to be installed into the housing.

[0013] In some embodiments, the side of the housing facing the top cover is provided with a snap-fit ​​groove for snapping into the patch holder.

[0014] In some embodiments, the patch holder includes: a support portion, at least a portion of which is recessed inward to form a cutting groove for assisting in shaping and / or cutting the patch; or, the patch holder further includes: a snap-fit ​​portion disposed at one end of the patch holder away from the support portion for mounting the patch holder to the housing; or, the patch holder further includes: a patch clamp detachably snap-fitted to the support portion for clamping the patch.

[0015] Compared with related technologies, the above-described solutions of this disclosure have at least the following beneficial effects:

[0016] The patch cutting device disclosed herein includes a base assembly, a housing, a patch holder, and a linkage blade assembly. The patch holder is detachably disposed within a through-hole inside the housing and can move synchronously with the housing. The linkage blade assembly is rotatably connected to the housing; in response to the housing moving towards the base assembly, the linkage blade assembly rotates inward within the housing to achieve the purpose of shaping / cutting the patch. The cutting device disclosed herein has a simple structure, is easy to operate, and better meets the hygiene requirements in medical device production.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:

[0019] Figure 1 This is a schematic diagram of a patch cutting device according to an exemplary embodiment.

[0020] Figure 2 This is a schematic diagram of the structure of a base assembly according to an exemplary embodiment.

[0021] Figure 3 This is a cross-sectional view of a patch cutting device according to an exemplary embodiment.

[0022] Figure 4 This is a cross-sectional view of a housing in a second position according to an exemplary embodiment.

[0023] Figure 5 This is a schematic diagram of a patch fixing bracket according to an exemplary embodiment.

[0024] Figure 6 This is a schematic diagram of the structure of a housing according to an exemplary embodiment.

[0025] Figure 7 This is a schematic diagram of a patch holder with a patch installed, according to an exemplary embodiment.

[0026] Figure 8 This is a schematic diagram of a base assembly equipped with a linkage blade group according to an exemplary embodiment.

[0027] Figure label:

[0028] Base assembly 100, base 110, base platform assembly 120, first base platform 121, second base platform 122, third base platform 123, first connecting arm 130, ring blade 140, support column 150, elastic element 160;

[0029] Housing 200, first through hole 201, channel 202, first assembly hole 203, second assembly hole 204, sliding groove 205, first pin hole 206, first housing 210, second housing 220, snap-fit ​​groove 221, protrusion 222, adapter 230;

[0030] Linkage blade assembly 300, second pin hole 302, third pin hole 303, first pin rod 311, second pin rod 312, second connecting arm 320, cutting blade 330;

[0031] The patch holder 400, support part 410, first cutting groove 401, second cutting groove 402, third cutting groove 403, clamping groove 404, snap-fit ​​part 420, snap-fit ​​hole 421, patch clip 430;

[0032] Top cover 500, guide groove 501, second through hole 502, first assembly part 510, second assembly part 520, patch 600. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this disclosure clearer, the disclosure will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0034] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the disclosure. The singular forms “a,” “the,” and “the” as used in the embodiments of this disclosure and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise; “multiple” generally includes at least two, and other quantifiers are similarly intended.

[0035] It should be understood that although the terms first, second, third, etc., may be used to describe embodiments of this disclosure, these descriptions should not be limited to these terms. These terms are only used to distinguish the described objects. For example, first may also be referred to as second without departing from the scope of embodiments of this disclosure, and similarly, second may also be referred to as first. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] It should be understood that the term "and / or" as used herein is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0037] It is further understood that the terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment 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. Therefore, they should not be construed as limitations on the present invention.

[0038] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0040] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0041] In related technologies, when shaping and cutting patches for heterosexual staplers, it is often necessary to put the patch onto a patch shaping device and then cut the patch manually. During the manual cutting process, the patch is easily damaged due to inaccurate cutting precision.

[0042] This disclosure provides a patch cutting device, comprising: a base assembly having a base platform assembly and a first connecting arm, the first connecting arm being disposed on the base platform assembly; a housing movably connected to the base assembly, the housing having a first through hole inside; a patch fixing bracket detachably disposed in the first through hole for mounting a patch to shape and / or cut the patch; and a linkage blade assembly movably connected to the first connecting arm and the housing for cutting the patch.

[0043] The patch fixing bracket disclosed herein is disposed in a through hole inside the housing and can move synchronously with the housing. In response to the housing moving towards the base assembly, the linkage blade assembly rotates inward into the housing to achieve the purpose of shaping / cutting the patch. The patch cutting device has a simple structure and is easy to operate, and is more in line with the hygiene requirements in medical device production.

[0044] In view of the above, the optional embodiments of this disclosure will be described in detail below with reference to the accompanying drawings.

[0045] like Figure 1 , Figure 2 As shown, Figure 1 This is a schematic diagram of a patch cutting device according to an exemplary embodiment. Figure 2 This is a schematic diagram of the structure of a base assembly according to an exemplary embodiment. The patch cutting device provided in this disclosure includes: a base assembly 100, a housing 200, a linkage blade assembly 300, and a patch fixing frame 400.

[0046] The housing 200 is movably connected to the base assembly 100. Inside the housing 200, a linkage blade assembly 300 and a patch holder 400 are provided. The patch holder 400, which holds the patch 600 to be processed, is detachably disposed in the middle of the housing 200. The patch 600 can be fitted onto the end of the patch holder 400. The base assembly 100 supports the vertical movement of the housing 200 and is rotatably connected to the linkage blade assembly 300. When the housing 200 moves toward the vicinity of the base assembly 100, the linkage blade assembly 300 rotates toward the interior of the housing 200, configured to cut the patch 600 along the rotation direction of the linkage blade assembly 300.

[0047] In some embodiments, the base assembly 100 includes a base 110, and a base platform assembly 120 is disposed on one side of the base 110. The base platform assembly 120 may be configured as a multi-layered structure. For example... Figure 2 As shown, the base assembly 120 has a first base 121, a second base 122 and a third base 123, wherein the first base 121 is connected to the base 110 and is used to support the second base 122 and the third base 123.

[0048] At least a portion of the outer surface of the second base 122 extends in a direction away from the axis of the second base 122 to form a first connecting arm 130. The extending direction of the first connecting arm 130 can form a right angle with the extending direction of the base assembly 120. The free end of the first connecting arm 130 is provided with a connecting hole for connecting the linkage knife assembly 300.

[0049] In some embodiments, multiple first connecting arms 130 may be provided, and multiple first connecting arms 130 are arranged around the second base 122, so that the linkage blade assembly 300 is rotatably connected to the base assembly 120.

[0050] In some embodiments, the third base 123 is disposed at the end of the second base 122 away from the first base 121. The third base 123 is provided with a mounting groove for mounting a ring cutter 140. A portion of the ring cutter 140 is disposed inside the third base 123, and at least a portion of the ring cutter 140 is exposed outside the third base 123 for cutting the patch 600. When the patch holder 400 moves toward the third base 123, the patch 600 can be cut by the ring cutter 140.

[0051] In some embodiments, the base assembly 100 further includes a support column 150 and an elastic member 160. The support column 150 is connected to the base 110 and has the same extending direction as the base assembly 120. The free end of the support column 150 is connected to the housing 200, and the elastic member 160 is sleeved on the support column 150.

[0052] Specifically, such as Figure 3 As shown, Figure 3 This is a cross-sectional view of a patch cutting device according to an exemplary embodiment. A first mounting hole 203 is provided on the side of the housing 200 facing the base 110, the first mounting hole 203 for fitting the support post 150. The two ends of the elastic member 160 abut against the base 110 and the housing 200 respectively, causing the housing 200 to tend to move away from the base 110.

[0053] In some embodiments, the first mounting hole 203 may be provided with a transition portion 230, which is sleeved on the support column 150 to reduce the friction between the housing 200 and the base assembly 100 and extend the service life of the parts.

[0054] In some embodiments, the housing 200 is further provided with a first through hole 201, which can penetrate the housing 200 and is used to install a patch fixing frame 400. The patch fixing frame 400 can be installed inside the first through hole 201 and moves with the housing 200. When the housing 200 moves toward the base 110, the patch 600 to be processed on the patch fixing frame 400 can contact the annular blade 140 to achieve the cutting of the patch 600.

[0055] In some embodiments, such as Figure 5 As shown, Figure 5 This is a schematic diagram illustrating the structure of a patch holder according to an exemplary embodiment. One end of the patch holder 400 is provided with a support portion 410 for shaping the patch 600, and a portion of the support portion 410 is recessed inward to form a first cutting groove 401. Figure 6 As shown, Figure 6 This is a schematic diagram of a housing structure according to an exemplary embodiment. The size of the first cutting groove 401 is adapted to the cutting diameter of the annular blade 140, and is used to assist the annular blade 140 in cutting the patch 600, so that the patch 600 is accurately cut by the annular blade 140.

[0056] When the housing 200, equipped with the patch holder 400, moves towards the base 110 from the base assembly 100, the third base 123 can extend into the first through hole 201. Furthermore, under the pressure of the housing 200 and the base assembly 100, the annular blade 140 abuts against the inner wall of the first cutting groove 401 to complete the cutting of the patch 600. When the annular blade 140 abuts against the patch holder 400, the housing 200 cannot continue to move towards the base 110.

[0057] In some embodiments, the housing 200 has a first position away from the annular blade 140 and a second position abutting against the annular blade 140. When the housing 200 is in the first position, a patch holder 400 containing the patch to be cut 600 can be installed into the first channel 202 of the housing 200, and the housing 200 is away from the annular blade 140. The housing 200 can be switched from the first position to the second position. When the housing 200 is in the second position, as... Figure 4 As shown, the patch fixing bracket 400 abuts against the annular blade 140, and the annular blade 140 cuts the patch 600.

[0058] In some embodiments, such as Figure 5As shown, at least part of the outer wall of the support portion 410 is recessed inward to form a second cutting groove 402. Multiple second cutting grooves 402 may be provided to assist the linkage blade assembly 300 in cutting the patch 600.

[0059] In some embodiments, the second cutting groove 402 penetrates the side wall of the support portion 410, that is, when the linkage blade assembly 300 cuts the patch 600, the portion of the patch 600 that contacts the end face of the patch fixing frame 400 will be cut by the linkage blade assembly 300.

[0060] In some other embodiments, the second cutting groove 402 exists only on the side wall of the support portion 410, that is, when the linkage blade assembly 300 cuts the patch 600, the part of the patch 600 that contacts the end face of the patch fixing frame 400 will not be cut by the linkage blade assembly 300.

[0061] It should be noted that this disclosure does not limit the depth of the second cutting groove 402 of the support part 410, and the depth of the second cutting groove 402 can be set according to actual production needs.

[0062] In some embodiments, the support 410 is detachably connected to the patch fixing frame 400. In actual production, the support 410 can be selected or replaced according to the needs of different staplers for the patch 600, so as to change the cutting effect of the linkage blade assembly 300 on the patch 600.

[0063] In some embodiments, the outer periphery of the support portion 410 has an annular recess, which is configured as a third cutting groove 403, and the third cutting groove 403 is used to assist in manual cutting of the patch 600.

[0064] In some embodiments, the patch holder 400 further includes a snap-fit ​​portion 420 disposed at one end of the patch holder 400 away from the support portion 410, for mounting the patch holder 400 to the housing 200.

[0065] The end of the snap-fit ​​part 420 is provided with a snap-fit ​​hole 421, which is used to snap the patch fixing frame 400 with the housing 200 to maintain the stable connection between the patch fixing frame 400 and the housing 200.

[0066] like Figure 6 As shown, a snap-fit ​​groove 221 is provided on the side of the housing 200 away from the base assembly 100. The patch fixing bracket 400 is adapted to pass through the first through hole 201, and the snap-fit ​​portion 420 of the patch fixing bracket 400 is adapted to snap-fit ​​with the snap-fit ​​groove 221 so that the patch fixing bracket 400 and the housing 200 remain stable.

[0067] The snap-fit ​​groove 221 is further provided with a protrusion 222, which can engage with the snap-fit ​​hole 421. When the snap-fit ​​part 420 presses against the protrusion 222, the protrusion 222 can be compressed, causing the snap-fit ​​part 420 to engage with the snap-fit ​​groove 221, thereby achieving the connection between the patch fixing bracket 400 and the housing 200.

[0068] In some embodiments, such as Figure 7 Figure 6 is a schematic diagram illustrating the structure of a patch holder 400 according to an exemplary embodiment. The patch holder 400 further includes a patch clip 430, which is detachably engaged with the support portion 410 for holding the patch 600. A clamping groove 404 adapted to the patch clip 430 may be provided near the support portion 410 for the patch clip 430 to hold the patch 600.

[0069] After the patch 600 is installed on the patch fixing frame 400, the patch clip 430 can be used to clamp the patch 600 to the patch fixing frame 400 to prevent the patch 600 from coming out of the patch fixing frame 400 or from shifting relative to the patch fixing frame 400, which would affect the cutting effect.

[0070] In some embodiments, the housing 200 further includes a channel 202 that connects the first through hole 201 to the outside of the cutting device, providing space for the linkage blade assembly 300 to move.

[0071] The sidewall of the channel 202 is provided with a sliding groove 205 and a first pin hole 206 for connecting the linkage blade assembly 300. The linkage blade assembly 300 is movably disposed in the channel 202. When the housing 200 moves in the vertical direction, the housing 200 will drive the linkage blade assembly 300 to move to cut the patch 600.

[0072] Specifically, during the process of the housing 200 switching from the first position to the second position, the linkage blade assembly 300 moves within the housing 200 and cuts the patch 600 along the second cutting groove 402.

[0073] In some embodiments, the linkage blade assembly 300 includes a first insert pin 311 and a second connecting arm 320, such as Figure 8 As shown, Figure 8 This is a schematic diagram of a base assembly equipped with a linkage blade group according to an exemplary embodiment. The second connecting arm 320 is rotatably connected to the first connecting arm 130 via the first pin 311.

[0074] Specifically, the first pin 311 passes through the sliding groove 205 to connect the second connecting arm 320 to the first connecting arm 130, and the first pin 311 is slidably disposed within the sliding groove 205. In response to the housing 200 moving in the vertical direction, the sliding groove 205 slides vertically with the first pin 311 as a fixed point.

[0075] In some embodiments, the linkage blade assembly 300 further includes a cutting blade 330 and a second pin 312, wherein the cutting blade 330 is rotatably connected to the second connecting arm 320 via the second pin 312.

[0076] The cutting blade 330 is used to cut the patch 600 and has a second pin hole 302 and a third pin hole 303. The second pin rod 312 passes through the second pin hole 302 for the cutting blade 330 to be rotatably connected to the second connecting arm 320, thereby realizing the connection between the base assembly 100 and the linkage blade group 300.

[0077] In some embodiments, the linkage blade assembly 300 further includes a third pin rod, which passes through the third pin hole 303 and the first pin hole 206 of the housing 200, for connecting the linkage blade assembly 300 to the housing 200. Furthermore, the third pin rod moves synchronously with the housing 200.

[0078] Specifically, when the housing 200 is in the first position, the first pin 311 is located at the end of the sliding groove 205 away from the base 110, and the patch 600 is away from the cutting blade 330 and the annular blade 140.

[0079] When the housing 200 switches from the first position to the second position, as Figure 4 As shown, in response to the movement of the housing 200, the first pin 311 moves toward the end away from the housing 200 in the sliding groove 205, and the patch 600 is cut by the cutting blade 330 and the annular blade 140, thus completing the shaping and cutting of the patch 600.

[0080] In some embodiments, the second pin hole 302 is regarded as the vertex. In order to ensure the cutting direction when the cutting blade 330 rotates, the included angle between the cutting blade 330 and the second connecting arm 320 is less than 180°, so as to avoid the cutting blade 330 being unable to cut the patch 600 when rotating due to the included angle being greater than 180°.

[0081] In some embodiments, such as Figure 1 , Figure 3As shown, the patch cutting device also includes a top cover 500, which has a plurality of first mounting parts 510. The first mounting parts 510 engage with the channel 202 of the housing 200. The top cover 500 is used to push the housing 200 to move under the action of an externally applied force.

[0082] The top cover 500 also includes a second through hole 502. When the top cover 500 is installed on the housing 200, the second through hole 502 communicates with the first through hole 201. A guide groove 501 is provided on the edge of the second through hole 502. The guide groove 501 is used to guide the snap-fit ​​part 420 of the patch fixing bracket 400 to be accurately installed into the snap-fit ​​groove 221 of the housing 200.

[0083] In some embodiments, the top cover 500 is provided with a second mounting part 520, and the housing 200 is provided with a second mounting hole 204 that matches the second mounting part 520 on the side opposite to the top cover 500. When the top cover 500 is installed on the housing 200, the second mounting part 520 engages with the second mounting hole 204, wherein the second mounting hole 204 can penetrate the housing 200 and communicate with the first mounting hole 203.

[0084] In some embodiments, the housing 200 may include a first housing 210 and a second housing 220. The first housing 210 is sleeved on the support column 150, and the sliding groove 205 is disposed on the side wall of the first housing 210 to limit the range of movement of the linkage blade assembly 300. The second housing 220 is disposed at the end of the first housing 210 away from the base 110 and is detachably connected to the first housing 210.

[0085] During the assembly of the cutting device, the base assembly 100 is first assembled from bottom to top. The base 110 is equipped with a base assembly 120 and a support column 150. The base assembly 120 includes a first base 121, a second base 122 and a third base 123. An elastic element 160 is sleeved on the support column 150.

[0086] Furthermore, the linkage blade assembly 300 is assembled into the housing 200, and then the housing 200 with the linkage blade assembly 300 assembled is fitted onto the base assembly 120. The support column 150 is fitted into the first mounting hole 203 of the housing 200. The two ends of the elastic member 160 abut against the base 110 and the housing 200 respectively. The elastic member 160 usually makes the housing 200 tend to move away from the base 110.

[0087] Finally, install the top cover 500 and the patch fixing bracket 400, and install the patch 600 onto the support part 410 of the patch fixing bracket 400. The snap-fit ​​part 420 of the patch fixing bracket 400 enters the housing 200 through the guide groove on the top cover 500, and further enters the snap-fit ​​groove 221 of the housing 200. The patch fixing bracket 400 can rotate within the housing 200 so that the snap-fit ​​part 420 snaps into the snap-fit ​​groove 221.

[0088] After the cutting device is assembled, the top cover 500 can be pressed under external force, causing the housing 200 to move the patch fixing frame 400 toward the adjacent base 110. During the process of the housing 200 moving from the first position to the second position, the ring blade 140 cuts the patch 600 and enters the first cutting groove 401. The cutting path of the linkage blade group 300 passes through the second cutting groove 402, thereby realizing the cutting and shaping of the patch 600.

[0089] After the patch 600 is cut, the external force is removed, and the elastic member 160 applies a force to the housing 200 away from the base 110. The housing 200 returns to the first position from the second position. At this time, the patch fixing frame 400 can be rotated to remove the patch fixing frame 400 together with the patch 600.

[0090] Furthermore, the patch 600 can be cut manually along the third cutting groove 403, or a robot can be used to cut the patch 600 along the third cutting groove 403, thereby completing the cutting and shaping of the patch 600.

[0091] The specific structure, working principle, and beneficial effects of the patch cutting device provided in this disclosure can be found in any of the patch cutting devices described in the above embodiments, and will not be repeated here.

[0092] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems or apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple, and relevant parts can be referred to the method section.

[0093] The above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit it. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A patch cutting device, characterized in that, include: A base assembly having a base assembly and a first connecting arm, the first connecting arm being disposed on the base assembly; A housing is movably connected to the base assembly, and a first through hole is provided inside the housing; A patch holder is detachably disposed in the first through hole for mounting the patch to shape and / or cut the patch; The linkage blade assembly, movably connected to the first connecting arm and the housing, is used for cutting patches. The housing also includes a channel that connects the first through hole to the outside. The linkage blade assembly is movably disposed in the channel to cut the patch. A sliding groove and a first pin hole are provided through the side wall of the channel. The linked blade assembly includes: The first pin is slidably disposed within the sliding groove; The second connecting arm is rotatably connected to the first connecting arm via the first pin; In response to the housing moving toward the base assembly, the free end of the linkage blade assembly rotates toward the interior of the housing to cut the patch; in response to the housing moving in the vertical direction, the sliding groove slides in the vertical direction with the first pin as a fixed point.

2. The patch cutting device according to claim 1, characterized in that, The linked blade assembly also includes: A cutting blade, used for cutting patches, has a second pin hole and a third pin hole; The second pin passes through the second pin hole and the first pin hole, and is used to rotatably connect the cutting blade to the housing. The second connecting arm is rotatably connected to the cutting blade via the third pin hole.

3. The patch cutting device according to claim 1, characterized in that, The base assembly includes: A base, on the side of the base facing the housing, is provided with a base assembly, and the free end of the base assembly is provided with a ring blade; a support column, connected to the base and extending in the same direction as the base assembly; An elastic element is fitted onto the support column, and the two ends of the elastic element abut against the base and the housing, respectively.

4. The patch cutting device according to claim 3, characterized in that, The housing includes: The first housing is sleeved on the support column to restrict the movement of the linkage blade assembly; The second housing is located at the end of the first housing away from the base and is detachably connected to the first housing.

5. The patch cutting device according to claim 1, characterized in that, Also includes: The top cover engages with the channel of the housing and is used to move the housing under the action of an external force.

6. The patch cutting device according to claim 5, characterized in that, The top cover includes: The second through hole has a guide groove on its edge, which is used to guide the patch fixing bracket to be installed into the housing.

7. The patch cutting device according to claim 6, characterized in that, The side of the housing that faces the top cover is provided with a snap-fit ​​groove for snapping into the patch fixing bracket.

8. The patch cutting device according to claim 1, characterized in that, The patch fixing bracket includes: A support portion, at least a portion of which is recessed inward to form a cutting groove, for assisting in shaping and / or cutting the patch; Alternatively, the patch holder may further include a snap-fit ​​portion disposed at one end of the patch holder away from the support portion, for mounting the patch holder to the housing; Alternatively, the patch holder may further include a patch clamp, which is detachably engaged with the support portion for holding the patch.

Images