Folding linear cutting stapler

Abstract

This invention provides a foldable straight-line cutting closure device, comprising: a closure body, a staple cartridge seat, and an anvil seat; the staple cartridge seat is mounted on the closure body; the staple cartridge seat includes a base, a sliding seat, and a fixing member; the base and the sliding seat share a staple cartridge slot for staple cartridge installation, and the sliding seat is slidably mounted on the base to adjust the length of the staple cartridge slot; the fixing member is mounted on the base and can limit the sliding distance of the sliding seat; the other end of the anvil seat is hinged to the base, and the length of the anvil seat is adjustable. In this invention, the sliding seat is pushed to adjust the length of the staple cartridge slot as needed, then the staple cartridge matching the length of the staple cartridge slot is installed in the staple cartridge slot, and the length of the anvil seat is adjusted appropriately. After adjustment, the closure body controls the movement of the staple cartridge seat, the anvil seat, and the staple cartridge to cut and close at the corresponding position. By adjusting the length of the staple cartridge seat and the anvil seat, the cutting and closing operation can be completed well even in confined spaces.

Description

Technical Field

[0001] This invention relates to the field of closure technology, and more specifically to a folding type straight-line cutting closure. Background Technology

[0002] Currently, minimally invasive laparoscopic surgery has been widely adopted and has become a direction for the development of surgery. Minimally invasive laparoscopic rectal resection involves removing the rectum containing the diseased portion. During the resection of the rectum containing the diseased portion, in order to prevent the leakage of waste from the rectum into the abdominal cavity, it is necessary to close both ends of the rectum containing the diseased tissue and close the remaining end of the rectum while cutting off the rectum containing the diseased tissue. Therefore, cutting and closing devices are frequently used in rectal resection surgery.

[0003] When cutting and closing the low rectum, the closing device cannot work well in the low rectum and other confined spaces due to the narrow space there. Summary of the Invention

[0004] In view of the above-mentioned problems in the existing technology, the technical problem to be solved by the present invention is that: due to the narrow space in the lower rectum, the closure device cannot work well in the narrow space such as the lower rectum.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a folding straight-line cutting closure device, comprising: a closure body, a staple cartridge seat, and a staple stop; the staple cartridge seat is mounted on the closure body; the staple cartridge seat includes a base, a sliding seat, and a fixing member; the base and the sliding seat are jointly provided with a staple cartridge slot for mounting the staple cartridge, and the sliding seat is slidably mounted on the base to adjust the length of the staple cartridge slot; the fixing member is mounted on the base, and the fixing member can limit the sliding distance of the sliding seat; the other end of the staple stop is hinged to the base, and the length of the staple stop is adjustable.

[0006] In this invention, the sliding seat is pushed to adjust the length of the staple cartridge slot according to the requirements. Then, the staple cartridge matching the length of the staple cartridge slot is installed in the staple cartridge slot, and the length of the abutment seat is adjusted appropriately. After the adjustment is completed, the action of the staple cartridge seat, the abutment seat and the staple cartridge is controlled by the closing device body to cut and close the corresponding position. By adjusting the length of the staple cartridge seat and the abutment seat, the cutting and closing operation can be completed well even in a narrow space.

[0007] Preferably, the base includes a connecting seat, a base plate, and side plates; one end of the connecting seat is connected to the closure body, and the other end of the connecting seat is fixedly mounted with the base plate; the sliding seat is slidably connected along the length direction of the base plate; the two side plates are located on both sides of the width direction of the base plate, one end of the side plate in the length direction is slidably attached to the connecting seat, and the side plates are slidably connected along the width direction of the base plate, allowing the sliding seat to pass through or abut against the side wall of the sliding seat. When the side plate slides to the inner side, the end of the side plate away from the connecting seat in the length direction is attached to the end face of the side wall in the width direction of the sliding seat, thereby cooperating with the sliding seat to form a staple cartridge groove; when the side plate slides to the outer side, the inner surface of the side plate and the outer surface in the width direction of the sliding seat are in the same plane, allowing the sliding seat to pass through, thereby adjusting the length of the staple cartridge groove.

[0008] Preferably, the fixing component includes a first hinge joint, a connecting post, and a locking joint; the first hinge joint and the locking joint are fixedly connected by the connecting post; a ball joint groove is provided at the upper end of the side plate away from the connecting seat, and a through groove is provided on both the side of the ball joint groove near the sliding seat and the side of the ball joint groove facing inward; a fixing groove is provided on the upper side wall of the sliding seat near the side plate, and a through groove is provided on the side of the fixing groove near the side plate; multiple limiting grooves are provided along the length of the upper side wall of the sliding seat, and a through groove is provided on the side of each limiting groove facing outward; the first hinge joint is located in the ball joint groove and is ball-jointed to the side plate; the locking joint can be locked into the fixing groove and the limiting groove. When it is necessary to adjust the length of the staple cartridge groove, the locking joint is taken out from the fixing groove and locked into the corresponding limiting groove, thereby achieving the purpose of restricting the sliding movement of the sliding seat.

[0009] Preferably, the base plate is provided with a slide bar along its length, and the sliding seat is provided with a corresponding first sliding groove. The sliding seat is slidably connected to the base plate via the slide bar. The slide bar guides the sliding seat, allowing it to slide more smoothly on the base plate.

[0010] Preferably, a slider is provided below the side plate, and a corresponding second groove is provided in the width direction of the base plate. The side plate is slidably connected to the base plate through the slider. The side plate is guided by the cooperation of the second groove and the slider.

[0011] Preferably, the system further includes a connector, which comprises a second hinge joint, a connecting head, and an elastic telescopic column; the second hinge joint and the connecting head are connected by the elastic telescopic column; the second hinge joint is ball-jointed to the end of the side plate away from the connecting seat; the side wall of the sliding seat is provided with an L-shaped connecting groove; the connecting head is slidably installed in the L-shaped connecting groove. The connector increases the stability between the side plate and the sliding seat.

[0012] Preferably, the elastic telescopic column includes a first connecting sleeve, a second connecting sleeve, a connecting rod, a limiting block, and a spring; one end of the first connecting sleeve is fixedly connected to a second hinge joint, and one end of the second connecting sleeve is fixedly connected to a connecting head; both ends of the connecting rod are slidably inserted into the first and second connecting sleeves respectively, and limiting blocks are fixedly installed at both ends of the connecting rod; springs are respectively sleeved on the connecting rods in the first and second connecting sleeves. The elastic telescopic column extends and retracts by sliding the connecting rods in the first and second connecting sleeves, and the connecting rods are reset by the springs.

[0013] Preferably, a pull ring is fixedly connected to the snap-fit ​​connector by a pull rope, and the pull ring can be inserted into the fixing groove and the limiting groove. The pull ring makes it easier to remove the snap-fit ​​connector from the fixing groove or the limiting groove.

[0014] Compared with the prior art, the present invention has at least the following advantages:

[0015] Even in confined spaces, cutting and closing operations can be performed effectively. In this invention, the sliding seat is pushed to adjust the length of the staple cartridge slot as needed. Then, the staple cartridge matching the length of the slot is installed in the slot, and the length of the anvil is adjusted appropriately. After adjustment, the closing mechanism body controls the movement of the staple cartridge seat, the anvil, and the staple cartridge to cut and close at the corresponding positions. By adjusting the lengths of the staple cartridge seat and the anvil, cutting and closing operations can be performed effectively even in confined spaces. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a perspective view of a folding linear cutting closure provided in an embodiment of the present invention.

[0018] Figure 2 This is a perspective view of the base provided in an embodiment of the present invention.

[0019] Figure 3 This is a perspective view of the sliding seat provided in an embodiment of the present invention.

[0020] Figure 4 This is a front view of the side panel provided in an embodiment of the present invention.

[0021] Figure 5 This is a front view of the fastener provided in an embodiment of the present invention.

[0022] Figure 6 This is a front sectional view of the connector provided in an embodiment of the present invention.

[0023] Reference numerals: 1-Closing device body, 2-Pin cartridge seat, 21-Base, 211-Connecting seat, 212-Base plate, 213-Side plate, 22-Sliding seat, 221-L-shaped connecting groove, 23-Fixing component, 231-First hinge joint, 232-Connecting column, 233-Snap joint, 234-Spherical hinge groove, 235-Through groove, 236-Fixing groove, 237-Limiting groove, 24-Sliding bar, 25-First sliding groove, 26-Sliding block, 27-Second sliding groove, 3-Anchor seat, 4-Pin cartridge groove, 5-Connecting component, 51-Second hinge joint, 52-Connecting head, 53-Elastic telescopic column, 531-First connecting sleeve, 532-Second connecting sleeve, 533-Connecting rod, 534-Limiting block, 535-Spring, 61-Pull rope, 62-Pull ring. Detailed Implementation

[0024] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0025] In this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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 this invention.

[0026] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] See Figure 1The present invention provides an embodiment of a folding straight-line cutting closure, comprising: a closure body 1, a staple cartridge seat 2, and a staple abutment seat 3; the staple cartridge seat 2 is mounted on the closure body 1; the staple cartridge seat 2 includes a base 21, a sliding seat 22, and a fixing member 23; the base 21 and the sliding seat 22 are jointly provided with a staple cartridge groove 4 for mounting the staple cartridge, and the sliding seat 22 is slidably mounted on the base 21 to adjust the length of the staple cartridge groove 4; the fixing member 23 is mounted on the base 21, and the fixing member 23 can limit the sliding distance of the sliding seat 22; the other end of the staple abutment seat 3 is hinged to the base 21, and the length of the staple abutment seat 3 is adjustable.

[0028] In practice, the sliding seat 22 is pushed to adjust the length of the staple cartridge slot 4 as needed. Then, the staple cartridge matching the length of the staple cartridge slot 4 is installed in the staple cartridge slot 4, and the length of the pin stop 3 is adjusted appropriately. After the adjustment is completed, the staple cartridge seat 2, the pin stop 3 and the staple cartridge are controlled by the closing device body 1 to cut and close the corresponding position. By adjusting the length of the staple cartridge seat 2 and the pin stop 3, the cutting and closing operation can be completed well even in a narrow space.

[0029] See Figure 1 and Figure 2 In other embodiments, the base 21 includes a connecting seat 211, a base plate 212, and a side plate 213; one end of the connecting seat 211 is connected to the closure body 1, and the other end of the connecting seat 211 is fixedly mounted with the base plate 212; the sliding seat 22 is slidably connected along the length direction of the base plate 212; furthermore, the base plate 212 is provided with a slide bar 24 along its length direction, and the sliding seat 22 is provided with a corresponding first slide groove 25; the sliding seat 22 is slidably connected to the base plate 212 through the slide bar 24, and the slide bar 24 guides the sliding seat 22, allowing the sliding seat 22 to slide on the base plate 212. The movement is smoother; two side plates 213 are located on both sides of the width direction of the base plate 212, one end of the side plate 213 is slidably attached to the connecting seat 211 in the length direction, the side plate 213 is slidably connected along the width direction of the base plate 212, and the side plate 213 slides to allow the sliding seat 22 to pass through or abut against the side wall of the sliding seat 22; furthermore, a slider 26 is provided below the side plate 213, and a corresponding second slide groove 27 is provided in the width direction of the base plate 212. The side plate 213 is slidably connected to the base plate 212 through the slider 26, and the side plate 213 is guided by the cooperation of the second slide groove 27 and the slider 26. In practice, when the side plate 213 slides to the inner side, the end of the side plate 213 away from the connecting seat 211 in the length direction fits against the end face of the side wall in the width direction of the sliding seat 22, so as to cooperate with the sliding seat 22 to form the staple cartridge groove 4; when the side plate 213 slides to the outer side, the inner side of the side plate 213 and the outer side in the width direction of the sliding seat 22 are in the same plane, so that the sliding seat 22 can pass through to adjust the length of the staple cartridge groove 4.

[0030] See Figure 4 and Figure 5 In other embodiments, the fixing member 23 includes a first hinge joint 231, a connecting post 232, and a snap-fit ​​joint 233; the first hinge joint 231 and the snap-fit ​​joint 233 are fixedly connected by the connecting post 232; a ball joint groove 234 is provided at the upper end of the side plate 213 away from the connecting seat 211, and a through groove 235 is provided on the side of the ball joint groove 234 near the sliding seat 22 and on the side of the ball joint groove 234 facing inward; a fixing groove 236 is provided on the upper side wall of the sliding seat 22 near the side plate 213, and a through groove 235 is provided on the side of the fixing groove 236 near the side plate 213; a plurality of limiting grooves 237 are provided in the length direction on the upper side wall of the sliding seat 22, and a through groove 235 is provided on the side of each limiting groove 237 facing outward; the first hinge joint 231 is located in the ball joint groove 234 and is ball-jointed to the side plate 213; the snap-fit ​​joint 233 can be snapped into the fixing groove 236 and the limiting groove 237. In practice, the first hinge joint 231 rotates, and through the connecting post 232, the first hinge joint 231 drives the snap-fit ​​joint 233 to move. The connecting post 232 snaps into the through groove 235, and at the same time, the snap-fit ​​joint 233 snaps into the fixing groove 236, thereby fixing the side plate 213 and the sliding seat 22. When it is necessary to adjust the length of the nail cartridge groove 4, the snap-fit ​​joint 233 is taken out from the fixing groove 236 and snaps into the corresponding limiting groove 237, thereby restricting the sliding movement of the sliding seat 22.

[0031] See Figure 3 and Figure 6 It also includes a connector 5, which includes a second hinge joint 51, a connector head 52, and an elastic telescopic column 53. The second hinge joint 51 and the connector head 52 are connected by the elastic telescopic column 53. The second hinge joint 51 is ball-jointed to the end of the side plate 213 away from the connecting seat 211. An L-shaped connecting groove 221 is provided on the side wall of the sliding seat 22. The connector head 52 is slidably installed in the L-shaped connecting groove 221. In specific implementation, the side plate 213 slides, causing the connector head 52 to slide in the short groove of the L-shaped connecting groove 221. Then the sliding seat 22 slides, causing the elastic telescopic column 53 to extend. The connector head 52 rotates in the L-shaped connecting groove 221 and slides into the long groove of the L-shaped connecting groove 221. The stability between the side plate 213 and the sliding seat 22 can be increased by the connector 5.

[0032] See Figure 6In other embodiments, the elastic telescopic column 53 includes a first connecting sleeve 531, a second connecting sleeve 532, a connecting rod 533, a limiting block 534, and a spring 535. One end of the first connecting sleeve 531 is fixedly connected to the second hinge joint 51, and one end of the second connecting sleeve 532 is fixedly connected to the connector 52. The two ends of the connecting rod 533 are respectively slidably inserted into the first connecting sleeve 531 and the second connecting sleeve 532, and the limiting blocks 534 are fixedly installed at both ends of the connecting rod 533. The connecting rod 533 in the first connecting sleeve 531 and the second connecting sleeve 532 is respectively sleeved with a spring 535. The elastic telescopic column 53 extends and retracts by sliding the connecting rod 533 in the first connecting sleeve 531 and the second connecting sleeve 532, and the connecting rod 533 is reset by the spring 535.

[0033] See Figure 5 In another embodiment, a pull ring 62 is fixedly connected to the snap-fit ​​connector 233 by a pull rope 61. The pull ring 62 can be inserted into the fixing groove 236 and the limiting groove 237. The snap-fit ​​connector 233 can be removed from the fixing groove 236 or the limiting groove 237 more conveniently by means of the pull ring 62.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A folding type straight-line cutting closure, characterized in that, include: The closing mechanism body (1), the pin cartridge seat (2), and the pin seat (3); The closure body (1) is equipped with a nail cartridge seat (2); The staple cartridge (2) includes a base (21), a sliding seat (22), and a fixing member (23); The base (21) and the sliding seat (22) are both provided with a staple cartridge slot (4) for staple cartridge installation, and the sliding seat (22) is slidably installed on the base (21) to adjust the length of the staple cartridge slot (4); The fixing member (23) is mounted on the base (21), and the fixing member (23) can limit the sliding distance of the sliding seat (22); The other end of the anvil (3) is hinged to the base (21), and the length of the anvil (3) is adjustable; The base (21) includes a connecting seat (211), a base plate (212), and a side plate (213); One end of the connecting seat (211) is connected to the closing body (1), and the other end of the connecting seat (211) is fixedly installed with a base plate (212). The sliding seat (22) is slidably connected along the length of the base plate (212); The two side plates (213) are located on both sides of the width direction of the base plate (212). One end of the side plate (213) in the length direction is slidably attached to the connecting seat (211). The side plate (213) is slidably connected along the width direction of the base plate (212). The side plate (213) is slidably for the sliding seat (22) to pass through or to abut against the side wall of the sliding seat (22). The fastener (23) includes a first hinge joint (231), a connecting post (232), and a snap-fit ​​joint (233); The first hinge joint (231) and the snap joint (233) are fixedly connected by a connecting post (232); The side plate (213) has a ball joint groove (234) at the end away from the connecting seat (211) on the upper side. The ball joint groove (234) is provided with a through groove (235) on the side close to the sliding seat (22) and the side of the ball joint groove (234) facing inward. A fixing groove (236) is provided on the upper side wall of the sliding seat (22) near the side plate (213), and a through groove (235) is provided on the side of the fixing groove (236) near the side plate (213). The sliding seat (22) has a plurality of limiting grooves (237) in the length direction above the side wall, and each limiting groove (237) has a through groove (235) on the side facing outward. The first hinge joint (231) is located in the ball joint groove (234) and is ball joint connected to the side plate (213); The snap-fit ​​connector (233) can be snapped into the fixing groove (236) and the limiting groove (237).

2. The folding linear cutting closure according to claim 1, characterized in that, The base plate (212) is provided with a slide bar (24) along its length, and the sliding seat (22) is provided with a corresponding first slide groove (25). The sliding seat (22) is slidably connected to the base plate (212) through the slide bar (24).

3. The folding linear cutting closure according to claim 1, characterized in that, The side plate (213) is provided with a slider (26) below it, and the bottom plate (212) is provided with a corresponding second sliding groove (27) in the width direction. The side plate (213) is slidably connected to the bottom plate (212) through the slider (26).

4. The folding linear cutting closure according to claim 1, characterized in that, It also includes a connector (5), which includes a second hinge (51), a connector (52), and an elastic telescopic column (53); The second hinge joint (51) and the connector (52) are connected by an elastic telescopic column (53); The second hinge joint (51) is ball-jointed to the end of the side plate (213) away from the connecting seat (211); The sliding seat (22) has an L-shaped connecting groove (221) on its side wall; the connector (52) is slidably installed in the L-shaped connecting groove (221).

5. The folding linear cutting closure according to claim 4, characterized in that, The elastic telescopic column (53) includes a first connecting sleeve (531), a second connecting sleeve (532), a connecting rod (533), a limiting block (534), and a spring (535); One end of the first connecting sleeve (531) is fixedly connected to the second hinge joint (51), and one end of the second connecting sleeve (532) is fixedly connected to the connector (52); The two ends of the connecting rod (533) are slidably inserted into the first connecting sleeve (531) and the second connecting sleeve (532) respectively, and the two ends of the connecting rod (533) are fixedly installed with limit blocks (534). Springs (535) are respectively fitted onto the connecting rods (533) inside the first connecting sleeve (531) and the second connecting sleeve (532).

6. The folding linear cutting closure according to claim 1, characterized in that, The snap connector (233) is fixedly connected to a pull ring (62) by a pull rope (61), and the pull ring (62) can be placed into the fixing groove (236) and the limiting groove (237).

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