A staple cartridge replacement structure for a stapler

Abstract

The application discloses a kind of stapler nail bin replacement structure, it is related to the technical field of stapler.A kind of stapler nail bin replacement structure includes connecting piece, connecting piece is equipped with fixed clamping plate, fixed clamping plate is equipped with movable clamping plate, and fixed clamping plate and movable clamping plate are rotationally connected;Fixed clamping plate is further equipped with nail storage element, and nail storage element is slidably clamped on fixed clamping plate;Movable clamping plate is equipped with locking mechanism;The movable range of movable clamping plate includes first movable interval and second movable interval, when movable clamping plate is located in first movable interval, locking mechanism locks nail storage element;When movable clamping plate is located in second movable interval, locking mechanism releases the locking of nail storage element;Connecting piece is further equipped with limiting mechanism, and limiting mechanism is used to adjust the movable range of movable clamping plate.The application can facilitate the disassembly of nail storage element to replace.

Description

Technical Field

[0001] This application relates to the technical field of sutures, and in particular to a suture cartridge replacement structure. Background Technology

[0002] A stapler is a medical device used to replace traditional manual suturing. It is characterized by fast, accurate, and minimally invasive suturing. Staplers are also known as anastomosing devices. In medicine, they are used to close and suture incisions at the end of the digestive tract, as well as to suture and sever tissues in other areas, such as skin and blood vessels. The working principle is to use titanium staples to sever or anastomose tissues, similar to a stapler.

[0003] A laparoscopic suture device is a type of suture device that mainly consists of a control handle, a transmission mechanism, and a suture head for insertion into the patient's body. The suture head typically includes a movable splint and a staple reservoir, which are rotatably connected. The handle controls the movable splint to rotate and contact the staple reservoir to retrieve staples for suturing.

[0004] To ensure cleanliness and hygiene during suturing, used staple refills cannot be reloaded. However, since suture devices used in clinical settings are often one-piece structures with non-removable staple refills, the entire suture device must be discarded after a single use, resulting in a large amount of medical waste, which is not environmentally friendly. Summary of the Invention

[0005] In order to facilitate the removal and replacement of the staple cartridge without affecting the use of the stapler, this application provides a staple cartridge replacement structure for a stapler.

[0006] The stapler cartridge replacement structure provided in this application adopts the following technical solution: A staple cartridge replacement structure for a suture includes a connector, a fixed clamping plate on the connector, a movable clamping plate on the fixed clamping plate, and a rotatable connection between the fixed clamping plate and the movable clamping plate; a staple storage component is also provided on the fixed clamping plate, and the staple storage component is slidably engaged on the fixed clamping plate; a locking mechanism is provided on the movable clamping plate. The movable clamp has a range of motion including a first movable interval and a second movable interval. When the movable clamp is in the first movable interval, the locking mechanism locks the nail storage component; when the movable clamp is in the second movable interval, the locking mechanism releases the lock on the nail storage component. The connector is also provided with a limiting mechanism, which has a first state and a second state. When the limiting mechanism is in the first state, the movable clamp can move in the first movement range; when the limiting mechanism is in the second state, the movable clamp can move in the first movement range and the second movement range.

[0007] By adopting the above technical solution, when the limiting mechanism is in the first state, the staple storage component is locked by the locking mechanism, and the movable clamp is restricted to move within the first movable range. At this time, the movable clamp can pick up staples for medical suturing, that is, the suture device can be used normally. When the limiting mechanism is adjusted to the second state, the movable clamp can move within the first and second movable ranges. When the movable clamp is located within the second movable range, the locking state of the staple storage component is released, and the staple storage component can be easily disassembled and replaced.

[0008] Preferably, the nail storage component includes a nail storage compartment, the bottom end of which is provided with a sliding block, the upper end of which is provided with an installation groove, the bottom of which is provided with a sliding groove, and the sliding block is slidably engaged in the sliding groove; the end of which is provided with a pin, the fixed clamping plate is provided with a mating groove, and the pin is inserted into the mating groove.

[0009] By adopting the above technical solution, the nail storage compartment can be pulled out for replacement; when reassembling the nail storage compartment, the movement of the nail storage compartment can be guided by the cooperation of the sliding groove and the sliding block, so that the pin can be accurately inserted into the mating groove.

[0010] Preferably, the locking mechanism includes a locking arc rod disposed on the movable clamping plate, the fixed clamping plate has a first arc hole extending into the mating groove, the pin has a second arc hole extending through it, and the locking arc rod is used to enter the second arc hole through the first arc hole to lock the pin. When the movable clamping plate is in the first movable range, the locking arc rod is inserted into the second arc hole; when the movable clamping plate is in the second movable range, the locking arc rod is separated from the second arc hole.

[0011] By adopting the above technical solution, when the movable clamping plate moves within the first movable range, the locking arc rod is inserted into the second arc hole, at which time the pin is locked, i.e., the nail storage piece is locked; when the movable clamping plate is in the second movable range, the locking arc rod is separated from the second arc hole, and the locking of the nail storage piece is released.

[0012] Preferably, the limiting mechanism includes a fixing member disposed on the connecting member, the fixing member having a keyway at its upper end, and a sliding key slidably disposed within the keyway; the sliding key is connected to the limiting member; The limiting member has a position one and a position two. When the limiting member is in position one, the movable clamp can move in a first movable range. When the limiting member is in position two, the movable clamp can move in a first movable range and a second movable range. The connector also has a receiving groove, and a locking component is provided in the receiving groove. The slide key is connected to the locking component, and the locking component is used to lock the limiting component in position one.

[0013] By adopting the above technical solution, when the sliding key drives the limiting member to position one, the movement range of the movable clamp is restricted, and the movable clamp can only move in the first active range. When the sliding key drives the limiting member to position two, the movable clamp can move in the first active range and the second active range.

[0014] Preferably, the locking assembly includes a button, a sliding key having a mounting hole extending into the receiving groove, and the button slidably disposed on the inner wall of the mounting hole; an upward-facing mounting box is slidably disposed on the inner wall of the receiving groove, the mounting box being connected to the sliding key, and a hook being rotated on the inner side wall of the mounting box, the top end of the hook contacting the bottom end of the button; a pressing spring is disposed inside the mounting box, one end of the pressing spring being connected to the hook, and the other end being connected to the bottom end of the mounting box; the bottom end of the receiving groove has a retaining groove, and the button is used to press the hook, thereby compressing the pressing spring and causing the hook to be engaged in the retaining groove; When the hook is engaged in the slot, the limiting member is in position one.

[0015] By adopting the above technical solution, pressing the button can make the hook part rotate. At this time, the sliding key can drive the installation box to move, thereby causing the hook part to be locked in the slot. Pressing the spring will provide force to make the hook part locked in the slot. In addition, at this time, the limiting part is located in position one.

[0016] Preferably, the hook component includes a mounting part mounted on the inner wall of the mounting box. One end of the mounting part is provided with an abutting part, and the other end is provided with a hook part. The upper end of the abutting part abuts against the lower end of the button, and the lower end of the abutting part is connected to the pressing spring.

[0017] By adopting the above technical solution, pressing the contact part can cause the mounting part to rotate the hook part.

[0018] Preferably, the button includes a stepped portion on the side wall, and the bottom end of the slide key has an abutting portion, which abuts against the stepped portion to limit the button within the mounting hole.

[0019] Preferably, the upper end of the keyway has multiple protrusions to increase friction.

[0020] By adopting the above technical solution, the design of the raised ridge makes it easier for users to press and slide the keyway.

[0021] In summary, the present invention has at least one of the following beneficial technical effects: 1. When the limiting mechanism is in the first state, the staple storage is locked by the locking mechanism, and the movable clamp is restricted to move within the first movable range. At this time, the movable clamp can pick up staples for medical suturing, that is, the suture device can be used normally. When the limiting mechanism is adjusted to the second state, the movable clamp can move within the first and second movable ranges. When the movable clamp is in the second movable range, the locking state of the staple storage is released, and the staple storage can be easily disassembled and replaced. 2. Pressing the button will cause the pry bar to rotate. At this time, moving the slide key will drive the mounting box to move, thereby causing the pry bar to be locked in the slot. Pressing the spring will provide force to lock the pry bar in the slot. In addition, at this time, the limiting part is in position one. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a stapler cartridge replacement structure according to an embodiment of this application; Figure 2 This is a cross-sectional view of the limiting mechanism in the first state of this application; Figure 3 This is a cross-sectional view of the limiting mechanism in the second state of this application; Figure 4 This is a structural diagram used to illustrate the nail storage warehouse; Figure 5 yes Figure 3 Enlarged view of part A in the middle.

[0023] The attached diagram shows the following markings: 1. Connector; 11. Receiving groove; 111. Slot; 2. Fixing clamp; 21. Mounting groove; 22. Sliding groove; 23. Mating groove; 3. Movable clamp; 4. Nail storage component; 41. Nail storage compartment; 42. Sliding block; 43. Pin; 5. Locking mechanism; 51. Locking arc rod; 52. First arc hole; 53. Second arc hole; 6. Limiting mechanism; 61. Fixing component; 611. Keyway; 62. Sliding key; 621. Mounting hole; 622. Abutting part; 623. Protruding ridge; 63. Limiting component; 64. Locking assembly; 641. Button; 6411. Stepped part; 642. Mounting box; 643. Hook; 6431. Mounting part; 6432. Abutting part; 6433. Hook; 644. Pressing spring; a. First moving range; b. Second moving range. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 limiting this invention.

[0026] This application discloses a staple cartridge replacement structure for a suture device. It facilitates the removal and replacement of the staple cartridge while ensuring the normal operation of the suture device.

[0027] Reference Figure 1 and Figure 2 A staple cartridge replacement structure for a suture includes a connector 1, a fixed clamping plate 2 at the right end of the connector 1, a movable clamping plate 3 on the fixed clamping plate 2, and a rotatable connection between the fixed clamping plate 2 and the movable clamping plate 3; the fixed clamping plate 2 is also provided with a staple storage component 4 for accommodating staples, the staple storage component 4 being slidably locked onto the fixed clamping plate 2; the movable clamping plate 3 is provided with a locking mechanism 5 for locking the staple storage component 4, and the connector 1 is also provided with a limiting mechanism 6 for limiting the range of motion of the movable clamping plate 3; Reference Figure 2 and Figure 3 The movable clamp 3 has a range of motion including a first movable zone a and a second movable zone b. When the movable clamp 3 is located in the first movable zone a, the nail storage component 4 is locked by the locking mechanism 5. When the movable clamp 3 is located in the second movable zone b, the locking state of the nail storage component 4 by the locking mechanism 5 is released, and the nail storage component 4 can be disassembled at this time. Reference Figure 2 and Figure 3 The limiting mechanism 6 has a first state and a second state. When the limiting mechanism 6 is in the first state, the movable clamping plate 3 can only move in the first active range a. When the limiting mechanism 6 is in the second state, the movable clamping plate 3 can move in the first active range a and the second active range b.

[0028] When the movable clamping plate 3 rotates to a horizontal position, it can remove nails from the nail storage piece 4. At this time, the angle between the movable clamping plate 3 and the horizontal plane is 0°. (Refer to...) Figure 2 and Figure 3 In this embodiment, under the above state, the range of motion of the movable clamp 3 when it rotates counterclockwise by 45° is the first active range a, and the range of motion of the movable clamp 3 when it continues to rotate counterclockwise by 15° is the second active range b.

[0029] Reference Figure 3 and Figure 4The nail storage component 4 includes a nail storage bin 41 for storing nails. The specific structure of the nail storage bin 41 is existing technology and will not be described in detail here. The bottom end of the nail storage bin 41 is provided with a sliding block 42, which is arranged horizontally. The upper end of the fixing plate 2 is provided with an installation groove 21. The bottom of the installation groove 21 is provided with a sliding groove 22, and the sliding block 42 is slidably locked in the sliding groove 22. The left end of the nail storage bin 41 is provided with a pin 43. The fixing plate 2 is provided with a mating groove 23, and the pin 43 is inserted into the mating groove 23.

[0030] When the limiting mechanism 6 is in the second state, the movable clamping plate 3 is moved into the second active range b. At this time, the nail storage compartment 41 can be removed and replaced by sliding it to the right.

[0031] Reference Figure 2 and Figure 3 The locking mechanism 5 includes a locking arc rod 51 located at the bottom end of the movable clamping plate 3. The fixed clamping plate 2 has a first arc hole 52 extending into the mating groove 23 on the rotation path of the locking arc rod 51. The pin 43 has a second arc hole 53 extending into the rotation path of the locking arc rod 51. The first arc hole 52 has two sections located above and below the second arc hole 53, respectively. The locking arc rod 51 is used to enter the second arc hole 53 through the first arc hole 52 to lock the pin 43. Specifically, in this embodiment, in order to ensure that the locking arc rod 51 can be inserted into the first arc hole 52 and the second arc hole 53, the distance between any point on the axis of the locking arc rod 51 and the rotation center of the movable clamping plate 3 is equal.

[0032] When the movable clamping plate 3 is in the first movable range a, the locking arc rod 51 is inserted into the second arc hole 53, and the locking arc rod 51 locks the pin 43. At this time, the nail storage compartment 41 cannot be disassembled. When the movable clamping plate 3 is in the second movable range b, the locking arc rod 51 is separated from the second arc hole 53, and the lower end of the locking arc rod 51 is located in the first arc hole 52. At this time, the nail storage compartment 41 can be disassembled.

[0033] Reference Figure 3 and Figure 5 The limiting mechanism 6 includes a fixing member 61 provided on the connecting member 1. The fixing member 61 has a keyway 611 at its upper end. A sliding key 62 is slidably provided in the keyway 611. The sliding key 62 can slide left and right in the keyway 611. A limiting member 63 is connected to the right end of the sliding key 62. The limiting member 63 is arranged horizontally and can move together with the sliding key 62. The limiting member 63 has a position one and a position two. Position one is the right limit position of the limiting member 63, which is the first state of the aforementioned limiting mechanism 6. Position two is the left limit position of the limiting member 63, which is the second state of the aforementioned limiting mechanism 6. When the limiting member 63 is in position one, the movable clamping plate 3 can only move in the first movable range a. If the movable clamping plate 3 continues to rotate counterclockwise, it will abut against the right end of the limiting member 63. When the limiting member 63 is in position two, the movable clamping plate 3 can move in the first movable range a and the second movable range b. Reference Figure 5 The connector 1 also has a receiving groove 11, which is located below the fixing member 61. The opening of the receiving groove 11 faces upward. A locking component 64 is provided in the receiving groove 11. The sliding key 62 is connected to the locking component 64. The locking component 64 is used to lock the limiting member 63 in position one.

[0034] Reference Figure 5 The locking assembly 64 includes a button 641 and a sliding key 62 with a vertically oriented mounting hole 621 extending into the receiving groove 11. The button 641 is slidably mounted on the inner wall of the mounting hole 621 and can move up and down. An upward-facing mounting box 642 is slidably mounted on the inner wall of the receiving groove 11 and can move left and right. The mounting box 642 is connected to the sliding key 62 and can move synchronously with it. A hook 643 is mounted on the inner wall of the mounting box 642, with its top end contacting the bottom end of the button 641. A compression spring 644 is located inside the mounting box 642. The compression spring 644 is in a compressed state, with its upper end connected to the hook 643 and its lower end connected to the bottom of the mounting box 642. The bottom of the receiving groove 11 has a V-shaped slot 111. The button 641 is used to press the hook 643, thereby compressing the pressing spring 644 and causing the hook 643 to be locked in the slot 111.

[0035] When the hook 643 is engaged in the slot 111, the pressing spring 644 can make the hook 643 press against the slot 111. At this time, the limiting member 63 is in position one, and the movable clamp 3 can move within the first movable range a. Figure 2 The diagram shown is a structural schematic of the hook 643 when it is engaged in the slot 111.

[0036] Pressing button 641 causes the pry bar 643 to rotate. At this time, the right end of the pry bar 643 is raised and disengaged from the slot 111. In this state, the left sliding key 62 drives the mounting box 642 to move to the left, so that the limiting part 63 reaches position two.

[0037] Reference Figure 5 Specifically, the hook component 643 includes a mounting part 6431 mounted on the inner wall of the mounting box 642. The left end of the mounting part 6431 is provided with an abutting part 6432, and the other end is provided with a downward-facing hook part 6433. The hook part 6433 is used to lock into the slot 111. The upper end of the abutting part 6432 abuts against the lower end of the button 641, and the lower end of the abutting part 6432 is connected to the pressing spring 644.

[0038] Reference Figure 5 To prevent the button 641 from detaching from the mounting hole 621, the button 641 includes a stepped portion 6411 on its side wall, and the bottom end of the slide key 62 has an abutting portion 622. The abutting portion 622 abuts against the stepped portion 6411, thereby limiting the button 641 within the mounting hole 621, preventing the button 641 from moving upwards. Figure 1 To facilitate the user to press and slide the slide key 62, the upper end of the slide key 62 has multiple protrusions 623 for increasing friction.

[0039] The implementation principle of a stapler cartridge replacement structure in this application embodiment is as follows: Pressing button 641 causes the mounting part 6431 to rotate, and the hook part 6433 lifts up and disengages from the slot 111. In this state, the left sliding key 62 drives the mounting box 642 to move to the left until the limiting part 63 reaches position two. Rotate the movable clamp 3 so that it reaches the second movable range b. At this time, the locking arc rod 51 will follow the movement of the movable clamp 3 to release the lock on the pin 43. Move the nail storage compartment 41 to the right to remove the nail storage compartment 41.

[0040] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A staple cartridge replacement structure for a suture device, characterized in that: The device includes a connector (1), a fixed clamp (2) on the connector (1), a movable clamp (3) on the fixed clamp (2), and a rotatable connection between the fixed clamp (2) and the movable clamp (3); a nail storage component (4) is also provided on the fixed clamp (2), and the nail storage component (4) is slidably locked on the fixed clamp (2); a locking mechanism (5) is provided on the movable clamp (3); the range of motion of the movable clamp (3) includes a first range (a) and a second range (b); when the movable clamp (3) is located in the first range (a), the locking mechanism (5) locks the nail storage component (4); when the movable clamp (3) is located in the second range (b), the locking mechanism (5) releases the lock on the nail storage component (4); The connector (1) is also provided with a limiting mechanism (6); the nail storage component (4) includes a nail storage bin (41), the end of the nail storage bin (41) is provided with a pin (43), the fixing clamp (2) has a mating groove (23), and the pin (43) is inserted into the mating groove (23); The locking mechanism (5) includes a locking arc rod (51) on the movable clamping plate (3), a first arc hole (52) extending into the mating groove (23) on the fixed clamping plate (2), and a second arc hole (53) extending through the pin (43). The locking arc rod (51) is used to enter the second arc hole (53) through the first arc hole (52) to lock the pin (43). When the movable clamping plate (3) is in the first movable range (a), the locking arc rod (51) is inserted into the second arc hole (53). When the movable clamping plate (3) is in the second movable range (b), the locking arc rod (51) is separated from the second arc hole (53). The limiting mechanism (6) includes a fixing member (61) provided on the connecting member (1), a keyway (611) is provided on the upper end of the fixing member (61), and a sliding key (62) is slidably provided in the keyway (611); the sliding key (62) is connected to a limiting member (63); the limiting member (63) has a position one and a position two. When the limiting member (63) is in position one, the movable clamping plate (3) can move in the first active range (a); when the limiting member (63) is in position two, the movable clamping plate (3) can move in the first active range (a) and the second active range (b); the connecting member (1) also has a receiving groove (11), and a locking component (64) is provided in the receiving groove (11). The sliding key (62) is connected to the locking component (64), and the locking component (64) is used to lock the limiting member (63) in position one; The locking assembly (64) includes a button (641), a sliding key (62) having a mounting hole (621) extending into the receiving groove (11), and the button (641) slidingly disposed on the inner wall of the mounting hole (621); a mounting box (642) with its opening facing upward is slidably disposed on the inner wall of the receiving groove (11), the mounting box (642) being connected to the sliding key (62), and a hook (643) rotating on the inner side wall of the mounting box (642), the top of the hook (643) being connected to the button. The bottom ends of the button (641) touch each other; the mounting box (642) is provided with a pressing spring (644), one end of the pressing spring (644) is connected to the hook (643), and the other end is connected to the bottom end of the mounting box (642); the bottom end of the receiving groove (11) has a slot (111), the button (641) is used to press the hook (643) so that the pressing spring (644) is compressed and the hook (643) is then locked in the slot (111); when the hook (643) is locked in the slot (111), the limiting member (63) is in position one.

2. The staple cartridge replacement structure according to claim 1, characterized in that: The bottom of the nail storage bin (41) is provided with a sliding block (42), and the upper end of the fixed clamping plate (2) is provided with an installation groove (21). The bottom of the installation groove (21) is provided with a sliding groove (22), and the sliding block (42) is slidably locked in the sliding groove (22).

3. The staple cartridge replacement structure according to claim 1, characterized in that: The hook component (643) includes a mounting part (6431) mounted on the inner wall of the mounting box (642). One end of the mounting part (6431) is provided with an abutting part (6432), and the other end is provided with a hook part (6433). The upper end of the abutting part (6432) abuts against the lower end of the button (641), and the lower end of the abutting part (6432) is connected to the pressing spring (644).

4. The staple cartridge replacement structure according to claim 1, characterized in that: The button (641) includes a stepped portion (6411) on the side wall, and the bottom end of the slide key (62) has an abutting portion (622) for abutting against the stepped portion (6411) to limit the button (641) within the mounting hole (621).

5. The staple cartridge replacement structure according to claim 1, characterized in that: The upper end of the keyway (611) has multiple protrusions (623) for increasing friction.

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