Manual reset device for adapter

Abstract

The invention discloses a manual reset device used by an adapter, the adapter is connected with an anastomat host and a nail box assembly, the adapter comprises an adapter body and an adapter rotating shaft, one end of the adapter rotating shaft is connected with a driving screw rod; the manual reset device comprises a fixed part and a rotating part, wherein the rotating part can rotate relative to the fixed part; when the manual reset device is connected with the adapter, the fixed part is fixedly connected with the adapter body, the rotating part is fixedly connected with the other end of the adapter rotating shaft, at the moment, the adapter rotating shaft can be driven to rotate by rotating the rotating part, and the adapter rotating shaft rotates to drive the nail box assembly to be opened and closed through the driving lead screw. According to the manual reset device, the driving force needed by manual reset can be effectively reduced, the reset operation is labor-saving, smooth and high in efficiency, the complex process of manual reset can be simplified, and the workload of medical staff can be relieved; and the device has the continuous rotation capability, so that the reset time of the adapter is remarkably shortened, the operation time is shortened, and the potential risk in the medical process is reduced.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a manual resetting device used for an adapter. Background Art

[0002] The combined laparoscopic stapler is a new type of medical device among medical staplers. The stapler includes a main unit and an adapter. The combined laparoscopic stapler can be used with a disposable stapler cartridge and is suitable for tissue resection, transection and anastomosis in abdominal, obstetrics and gynecology, pediatric and thoracic surgeries. It can also be used for resection and transection of liver parenchyma, liver blood vessels and gallbladder duct.

[0003] A combined stapler includes a main unit, an adapter, and a stapler magazine assembly. The main unit is the control unit of the instrument, and the adapter is the drive transmission part of the main unit. The stapler magazine assembly is mounted on the adapter. Operating the main unit can complete the suturing and cutting of tissues. Most of the currently available combined staplers usually rely on a manual reset device when the instrument encounters a large reset force and the electric reset fails to work properly. However, the existing manual reset device has many inconveniences in actual operation: first, manual reset requires a large amount of force, which undoubtedly increases the difficulty of operation for doctors; second, the operation of the manual reset device is relatively cumbersome, and it is necessary to stop the rotation and change the hand-held position every half a turn. The existing manual reset device is not only inconvenient to operate, but the repeated operation is not only inefficient, but also significantly increases the operation time. In a surgical environment where every second counts, the extension of the operation time may put the patient at higher risk, such as increasing the risk of infection and prolonging the anesthesia time. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A manual reset device for an adapter, wherein the adapter is connected to a stapler main body and a stapler magazine assembly, the adapter comprising: an adapter body and an adapter rotating shaft, one end of the adapter rotating shaft being connected to a drive screw; the manual reset device comprising: a fixed portion and a rotating portion, the rotating portion being rotatable relative to the fixed portion; when the manual reset device is connected to the adapter, the fixed portion is fixedly connected to the adapter body, and the rotating portion is fixedly connected to the other end of the adapter rotating shaft. At this time, rotating the rotating portion can drive the adapter rotating shaft to rotate, and the rotation of the adapter rotating shaft drives the stapler magazine assembly to open and close via the drive screw.

[0006] Furthermore, the rotating part includes a driving part and a handheld operating part, and the fixed part includes a bracket, which can be detachably connected to the adapter.

[0007] Furthermore, the main body of the adapter includes: a rotating head and an adapter joint; the rotating head and the adapter joint can rotate relative to each other, and the rotation of the rotating head can drive the nail magazine assembly to rotate. One end of the adapter joint is connected to the main unit, and the other end is connected to the nail magazine assembly; a first fixing rib and a first fixing groove are provided on the bracket, and correspondingly, the rotating head of the adapter is provided with a second fixing groove, and the adapter joint is provided with a second fixing rib, the first fixing rib cooperates with the second fixing groove, and the first fixing groove cooperates with the second fixing rib.

[0008] Furthermore, the bracket includes a fixing buckle, and correspondingly, a fixing slot is provided on the adapter. When the manual reset device is installed on the adapter, the fixing buckle and the fixing slot cooperate to prevent relative axial movement between the bracket and the adapter.

[0009] Furthermore, the driving part includes: a reset shaft and a reset shaft fixing seat, and the reset shaft is fixed on the reset shaft fixing seat; the driving part also includes a retaining spring, and the bracket includes a center hole. The reset shaft passes through the center hole and is fixed by the retaining spring, so that the driving part can only rotate axially relative to the bracket but cannot move axially.

[0010] Furthermore, the handheld operating part includes: a rocker arm and a rocker assembly, the rocker assembly includes a rocker fixing seat, a rocker shaft sleeve, and a rocker, and after the rocker shaft sleeve is sleeved on the outside of the rocker, the rocker is fixedly connected to the rocker fixing seat; one end of the rocker arm is rotatably connected to the reset shaft fixing seat, and the other end of the rocker arm is rotatably connected to the rocker fixing seat.

[0011] Furthermore, the reset shaft fixing seat is provided with a rocker arm accommodating position, the rocker arm can be located in the rocker arm accommodating position and can rotate in the rocker arm accommodating position, and the rocker arm is provided with a rocker assembly accommodating position, the rocker assembly can be located in the rocker assembly accommodating position and can rotate in the rocker assembly accommodating position.

[0012] Furthermore, the manual reset device includes an initial state and a working state. In the initial state, the rocker assembly is retracted into the waist assembly accommodating portion of the rocker arm, and the rocker arm is retracted into the rocker arm accommodating portion of the manual reset shaft fixing seat; in the working state, the rocker arm is parallel to the surface of the reset shaft fixing seat after rotation, and the rocker assembly is perpendicular to the surface of the reset shaft fixing seat after rotation.

[0013] Furthermore, an elastic bead hole is provided on the rocker arm, and the elastic bead is installed in the elastic bead hole. A positioning hole is provided on the rocker fixing seat. The elastic bead can be pressed against the positioning hole to position the elastic bead to the rocker assembly. There are two positioning holes. When the elastic bead is pressed against the two positioning holes of the rocker seat respectively, they correspond to the initial state and the working state respectively.

[0014] Furthermore, the rotating part includes a first rocker arm fixing component and a second rocker arm fixing component, the first rocker arm fixing component includes a rocker arm buckle arranged on the rocker arm and a clamping hole arranged on the reset shaft fixing seat, when the rocker arm is set in the rocker arm accommodation position, the rocker arm is fixed by the rocker arm buckle and the clamping hole; the second rocker arm fixing component includes a limiting groove arranged on the rocker arm and a limiting protrusion arranged on the reset shaft fixing seat, when the rocker arm is rotated from the rocker arm accommodation position to the working state, the limiting protrusion is clamped into the limiting groove to fix the rocker arm.

[0015] After adopting such a design, the present invention has at least the following advantages:

[0016] (1) When the combined stapler faces a large resetting resistance and cannot be reset by the electric function of the main unit, the manual resetting device of the present invention can effectively reduce the driving force required for manual resetting, making the resetting operation labor-saving, smooth, and efficient, and can simplify the complex process of manual resetting, thereby reducing the workload of medical staff;

[0017] (2) The manual resetting device of the present invention has the ability to rotate continuously, which significantly shortens the resetting time of the adapter, reduces the operation time, and reduces the potential risks during the medical process.

[0018] (3) The foldable structure of the present invention can greatly reduce the space occupied by the manual reset device when not in use, making the storage and accommodating of the device extremely convenient.

[0019] (4) The present invention has a simple structure, good effect, low cost and easy process implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure of the manual reset device and the adapter of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of the manual reset device of the present invention;

[0023] Figure 3 This is an exploded schematic diagram of the manual reset device of the present invention;

[0024] Figure 4 Schematic diagram of the support structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the manual reset device and the adapter of the present invention;

[0026] Figure 6This is a schematic diagram showing the fixing of the rotating part and the fixed part of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the reset shaft fixing seat of the present invention;

[0028] Figure 8 Schematic diagram of the rocker arm structure of the present invention;

[0029] Figure 9 Schematic diagram of the cross-sectional structure of the rocker assembly of the present invention;

[0030] Figure 10 This is a schematic diagram of the cooperation between the rocker assembly and the rocker arm of the present invention;

[0031] Figure 11 This is a schematic diagram of the cooperation between the rocker arm and the reset shaft fixing seat of the present invention;

[0032] Figure 12 This is a schematic diagram of the initial state of the manual reset device of the present invention;

[0033] Figure 13 This is a schematic diagram of the working state of the manual reset device of the present invention.

[0034] Figure numerals, 1 bracket, 11 fixing buckle, 12 first fixing rib, 13 first fixing groove, 2 driving part, 21 reset shaft, 22 retaining spring, 23 reset shaft fixing seat, 24 self-tapping screw, 231 fifth through hole, 232 clamping hole, 3 hand-held operating part, 31 rocker arm, 32 rocker fixing seat, 33 fixing seat pin, 34 rocker sleeve, 35 rocker, 36 rocker fixing pin, 37 elastic bump ball, 38 rocker arm pin, 311 third through hole, 312 elastic bump ball hole, 313 rocker arm buckle, 314 fourth through hole, 315 limiting groove, 321 rocker accommodating hole, 322 first through hole, 323 second through hole, 324 positioning hole, 41 adapter rotating shaft, 42 rotating head, 43 adapter joint,. DETAILED DESCRIPTION

[0035] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] In this document, “upper”, “lower”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0037] In the following, the end of each component closer to the operator is defined as the distal end, and the end farther from the operator is defined as the proximal end. The expressions proximal end and distal end are only used to simplify and clarify the description and should not be understood as any limitation to the present invention.

[0038] See attached Figure 1-13 The present application discloses a manual reset device for an adapter. The adapter is connected to the main body of the stapler and the stapler magazine assembly. The adapter includes: an adapter body and an adapter rotating shaft 41. One end of the adapter rotating shaft 41 is connected to the drive screw. The manual reset device includes: a fixed part and a rotating part. The rotating part can rotate relative to the fixed part. When the manual reset device is connected to the adapter, the fixed part is fixedly connected to the adapter body, and the rotating part is fixedly connected to the other end of the adapter rotating shaft 41. At this time, rotating the rotating part can drive the adapter rotating shaft 41 to rotate. The rotation of the adapter rotating shaft 41 drives the stapler magazine assembly to open and close through the drive screw. The rotating part includes a driving part 2 and a handheld operating part 3; the fixed part includes a bracket 1, and the bracket 1 can be detachably connected to the adapter. The main body of the adapter includes: a rotating head 42 and an adapter joint 43. The rotating head 42 and the adapter joint 43 can rotate relative to each other. The rotation of the rotating head 42 can drive the stapler magazine assembly to rotate. One end of the adapter joint 43 is connected to the main body, and the other end is connected to the stapler magazine assembly.

[0039] Bracket 1 is provided with a first fixing rib 12 and a first fixing slot 13. Correspondingly, the adapter's rotating head 42 is provided with a second fixing slot 421, and the adapter joint 43 is provided with a second fixing rib 431. The first fixing rib 12 cooperates with the second fixing slot 421, and the first fixing slot 13 cooperates with the second fixing rib 431. When the manual reset device is installed on the adapter, the bracket 1 is prevented from rotating relative to the adapter's rotating head 42 and the adapter joint 43. Preferably, there are two first fixing ribs 12, two first fixing slots 13, two second fixing slots 421, and two second fixing ribs 431, respectively.

[0040] Furthermore, the bracket 1 includes a fixing buckle 11, and correspondingly, a fixing slot (not shown in the figure) is provided on the adapter. When the manual reset device is installed on the adapter, the fixing buckle 11 and the fixing slot cooperate to prevent relative axial movement between the bracket 1 and the adapter.

[0041] The drive unit 2 includes a reset shaft 21 and a reset shaft fixing base 23. The reset shaft 21 is fixed to the reset shaft fixing base 23. Preferably, the drive unit 2 includes a self-tapping screw 24, which secures the reset shaft 21 to the reset shaft fixing base 23. Furthermore, the drive unit 2 includes a retaining spring 22. The bracket 1 includes a center hole, and the reset shaft 21 passes through the center hole and is fixed by the retaining spring 22. This allows the drive unit 2 to rotate axially relative to the bracket 1 but not to move axially.

[0042] The handheld operating part 3 includes: a rocker arm 31 and a rocker assembly, the rocker assembly includes a rocker fixing seat 32, a rocker shaft sleeve 34, and a rocker 35. After the rocker shaft sleeve 34 is sleeved on the outside of the rocker 35, the rocker 35 is fixedly connected to the rocker fixing seat 34; one end of the rocker arm 31 is rotatably connected to the reset shaft fixing seat 23, and the other end of the rocker arm 31 is rotatably connected to the rocker fixing seat 32.

[0043] The reset shaft fixing seat 23 is provided with a rocker arm accommodating portion, and the rocker arm 31 can be located in the rocker arm accommodating portion and can rotate in the rocker arm accommodating portion. The rocker arm 31 is provided with a rocker assembly accommodating portion, and the rocker assembly can be located in the rocker assembly accommodating portion and can rotate in the rocker assembly accommodating portion.

[0044] A rocker receiving hole 321 and a first through hole 322 are provided on the rocker fixing seat 32. A rocker through hole is provided at one end of the rocker 35. One end of the rocker 35 is inserted into the rocker receiving hole 321. The rocker fixing pin 36 passes through the first through hole 322 and the rocker through hole to fix the rocker 35 and the rocker fixing seat 32.

[0045] A second through hole 323 is provided on the rocker fixing seat 32. Correspondingly, a third through hole 311 is provided at one end of the rocker arm 31. The rocker fixing seat pin 33 passes through the third through hole 311 and the second through hole 323 to rotatably connect the rocker fixing seat 32 to the rocker arm 31.

[0046] A fourth through hole 314 is provided at the other end of the rocker arm 31. Correspondingly, a fifth through hole 231 is provided on the reset shaft fixing seat 23. The rocker arm pin 38 passes through the fifth through hole 231 and the fourth through hole 314 to rotatably connect the rocker arm 31 to the reset shaft fixing seat 23.

[0047] The manual reset device includes an initial state and a working state. In the initial state, the rocker assembly is retracted into the waist assembly accommodation portion of the rocker arm 31, and the rocker arm 31 is retracted into the rocker arm accommodation portion of the manual reset shaft fixing seat 23; in the working state, the rocker arm 31 rotates 180 degrees and becomes parallel to the surface of the reset shaft fixing seat 23, and the rocker assembly rotates 90 degrees and becomes perpendicular to the surface of the reset shaft fixing seat 23.

[0048] The rocker arm 31 is provided with an elastic ball-bearing hole 312, into which an elastic ball-bearing ball 37 is mounted. The rocker mounting base 32 is provided with a positioning hole 324, into which the elastic ball-bearing ball 37 can be abutted, thereby positioning the rocker assembly. There are two positioning holes 324, and when the elastic ball-bearing ball 37 abuts the two positioning holes 324 of the rocker mounting base, the rocker assembly is in its initial state and in its operating state, respectively. Preferably, the rocker arm 31 is provided with an elastic ball-bearing hole 312 on each side, with two elastic ball-bearing balls 37 positioned within each elastic ball-bearing hole 312, and the rocker mounting base 32 is provided with two positioning holes 324 on each side.

[0049] Furthermore, the rotating portion includes a first rocker arm fixing assembly, which includes a rocker arm buckle 313 provided on the rocker arm and a locking hole 232 provided on the reset shaft fixing seat 23. When the rocker arm 31 is positioned in the rocker arm receiving position, the rocker arm 31 is secured by the rocker arm buckle 313 and the locking hole 232. The rotating portion also includes a second rocker arm fixing assembly, which includes a limiting groove 315 provided on the rocker arm and a limiting protrusion (not shown) provided on the reset shaft fixing seat 23. When the rocker arm 31 rotates 180 degrees from the rocker arm receiving position and is in the working state, the limiting protrusion engages with the limiting groove 315 to secure the rocker arm 31.

[0050] The manual reset device is installed as follows: First, insert the rocker sleeve 34 onto the rocker 35. Install one end of the rocker 35, with the rocker sleeve 34 attached, into the rocker receiving hole 321 of the rocker mounting base 32. Then, insert the rocker fixing pin 36 through the first through-hole 322 and the rocker through-hole of the rocker mounting base 32 to secure the rocker 35 to the rocker mounting base 32, forming a rocker assembly. Install the rocker mounting base 32 into the rocker arm 31. Insert the rocker fixing base pin 33 through the third through-hole 311 of the rocker arm 31 and the second through-hole 323 of the rocker mounting base 32 to secure the rocker assembly to the rocker arm, allowing it to rotate within the rocker arm 31. Install the elastic bead 37 at the elastic bead hole 312 on the rocker arm 31 so that the elastic bead can be pressed against the positioning hole 324, so that the elastic bead 37 can position the rocker assembly; install the assembled rocker arm component on the reset shaft fixing seat 23, and use the rocker arm pin 38 to pass through the fifth through hole 231 of the reset shaft fixing seat 23 and the fourth through hole 314 of the rocker arm 31, so that the rocker arm 31 can rotate on the reset shaft fixing seat 23.

[0051] The manual reset device of the present invention has two states: an initial state and an operational state. In the initial state, the rocker arm and rocker assembly are closed to save storage space. In the operational state, the manual reset device cooperates with the adapter to unfold the rocker arm and rocker assembly. By rotating the rocker assembly clockwise or counterclockwise, the drive unit rotates smoothly. The rocker assembly also has the ability to rotate continuously, significantly shortening the reset time of the adapter and improving surgical efficiency. Furthermore, the length of the rocker arm and rocker arm can be appropriately extended to reduce the driving force required for manual reset, making the reset operation more labor-saving and smooth, greatly reducing the physical exertion of medical staff.

[0052] The foldable structure employed by this invention significantly reduces the space occupied by the manual reset device when not in use, making it extremely convenient to store and fold the device. When the manual safety device works in conjunction with the adapter, the snap-fit structure, along with the retaining ribs and slots, ensures a secure connection and integrated assembly with the adapter, ensuring precise and stable operation and facilitating installation and removal.

[0053] Those skilled in the art will readily recognize other embodiments of the present invention after considering the invention disclosed in the specification and examples. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered as exemplary only, and the true scope and spirit of the invention are indicated by the claims.

[0054] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A manual reset device for an adapter, wherein: The adapter is connected to the stapler main body and the stapler magazine assembly. The adapter includes: an adapter body and an adapter rotating shaft, one end of which is connected to the drive screw; the manual reset device includes: a fixed part and a rotating part, and the rotating part can rotate relative to the fixed part; when the manual reset device is connected to the adapter, the fixed part is fixedly connected to the adapter body, and the rotating part is fixedly connected to the other end of the adapter rotating shaft. At this time, rotating the rotating part can drive the adapter rotating shaft to rotate, and the rotation of the adapter rotating shaft drives the stapler magazine assembly to open and close through the drive screw.

2. The manual reset device according to claim 1, wherein: The rotating part includes a driving part and a handheld operating part, and the fixing part includes a bracket, which can be detachably connected to the adapter.

3. The manual reset device according to claim 2, characterized in that: The main body of the adapter includes: a rotating head and an adapter joint; the rotating head and the adapter joint can rotate relative to each other, and the rotation of the rotating head can drive the nail magazine assembly to rotate. One end of the adapter joint is connected to the host, and the other end is connected to the nail magazine assembly; a first fixing rib and a first fixing groove are provided on the bracket, and correspondingly, the rotating head of the adapter is provided with a second fixing groove, and the adapter joint is provided with a second fixing rib, the first fixing rib cooperates with the second fixing groove, and the first fixing groove cooperates with the second fixing rib.

4. In the manual reset device according to claim 2 or 3, the bracket includes a fixing buckle, and correspondingly, the adapter is provided with a fixing slot, and when the manual reset device is mounted on the adapter, the fixing buckle and the fixing slot cooperate to prevent relative axial movement between the bracket and the adapter.

5. The manual reset device according to claim 2 or 3, characterized in that: The driving part includes: a reset shaft and a reset shaft fixing seat, and the reset shaft is fixed on the reset shaft fixing seat; the driving part also includes a retaining spring, and the bracket includes a center hole. The reset shaft passes through the center hole and is fixed by the retaining spring, so that the driving part can only rotate axially relative to the bracket but cannot move axially.

6. The manual reset device according to claim 5, characterized in that: The handheld operating part includes: a rocker arm and a rocker assembly. The rocker assembly includes a rocker fixing seat, a rocker shaft sleeve, and a rocker. After the rocker shaft sleeve is sleeved on the outside of the rocker, the rocker is fixedly connected to the rocker fixing seat; one end of the rocker arm is rotatably connected to the reset shaft fixing seat, and the other end of the rocker arm is rotatably connected to the rocker fixing seat.

7. The manual reset device according to claim 6, characterized in that: The reset shaft fixing seat is provided with a rocker arm receiving position, the rocker arm can be located in the rocker arm receiving position and can rotate in the rocker arm receiving position, and the rocker arm is provided with a rocker assembly receiving position, the rocker assembly can be located in the rocker assembly receiving position and can rotate in the rocker assembly receiving position.

8. The manual reset device according to claim 6 or 7, characterized in that: The manual reset device includes an initial state and a working state. In the initial state, the rocker assembly is retracted into the waist assembly accommodating portion of the rocker arm, and the rocker arm is retracted into the rocker arm accommodating portion of the manual reset shaft fixing seat; in the working state, the rocker arm is parallel to the surface of the reset shaft fixing seat after rotation, and the rocker assembly is perpendicular to the surface of the reset shaft fixing seat after rotation.

9. The manual reset device according to claim 8, characterized in that: An elastic bead hole is provided on the rocker arm, and the elastic bead is installed in the elastic bead hole. A positioning hole is provided on the rocker fixing seat. The elastic bead can be pressed against the positioning hole to position the elastic bead to the rocker assembly. There are two positioning holes. When the elastic bead is pressed against the two positioning holes of the rocker seat respectively, it corresponds to the initial state and the working state respectively.

10. The manual reset device according to claim 6, wherein: The rotating part includes a first rocker arm fixing component and a second rocker arm fixing component. The first rocker arm fixing component includes a rocker arm buckle arranged on the rocker arm and a clamping hole arranged on the reset shaft fixing seat. When the rocker arm is set in the rocker arm accommodation position, the rocker arm is fixed by the rocker arm buckle and the clamping hole; the second rocker arm fixing component includes a limiting groove arranged on the rocker arm and a limiting protrusion arranged on the reset shaft fixing seat. When the rocker arm rotates from the rocker arm accommodation position to the working state, the limiting protrusion is clamped into the limiting groove to fix the rocker arm.

Images