Anastomat

Abstract

The invention provides an anastomat which comprises an anastomat body, and the anastomat body is provided with a rack; the first driving piece is connected with the rack and used for pushing the rack to the locking position; the locking piece is used for locking or unlocking with the first driving piece; a gear; the second driving piece is connected with the rack and used for driving the rack to be meshed with the gear; the third driving part is connected with the gear and drives the gear to rotate; according to the anastomat body, the first driving piece drives the rack from the unlocking position to the locking position so as to achieve closing of an actuator on the anastomat, and at the moment, the locking piece and the rack are locked; when the closing position of the actuator needs to be adjusted, the locking piece and the rack are unlocked, so that the rack is reset, the actuator is opened, and the position of the actuator is adjusted.

Description

Technical Field

[0001] The present disclosure relates to the field of medical technology, and in particular to a stapler. Background Art

[0002] The surgical stapler is a commonly used surgical instrument. It replaces the traditional manual suture and is mainly used for organ stump closure and incision anastomosis in surgical treatment. Currently, purely manual instruments are commonly used in the market. With the development of automation, some electric products have been developed and used, among which the products of Ethicon and American Surgical Company are relatively mature. The use of electric instruments improves the stability of surgical cutting and anastomosis, greatly improving the use of doctors.

[0003] When the actuator is closed, it is driven by a motor. In case the clamping position needs to be adjusted, the motor needs to be reversed and unlocked, which is complicated to operate and the electronic equipment may be damaged. In case the electronic equipment cannot operate, it needs to be manually forced back, which is inefficient and laborious and the stapler can be easily scrapped. Summary of the invention

[0004] In view of this, the purpose of the present disclosure is to provide a stapler, which can effectively alleviate the problem of inconvenient adjustment of the clamping position of the actuator on the stapler.

[0005] Based on the above purpose, the present disclosure provides a stapler, comprising: a stapler body, on which is provided:

[0006] rack;

[0007] A first driving member, connected to the rack, and used to push the rack to a locking position;

[0008] A locking member, used to lock or unlock the first driving member;

[0009] gear;

[0010] A second driving member, connected to the rack and used to drive the rack to engage with the gear;

[0011] a third driving member, connected to the gear and driving the gear to rotate;

[0012] Wherein, when the locking member is located at the locking position, the locking member is locked with the first driving member, and the rack is in an extended state;

[0013] When the locking member is located at the unlocking position, the locking member and the first driving member are unlocked, and the rack is in a reset state.

[0014] In one or more embodiments, the first driving member includes a driving handle and a pushing member, wherein the pushing member is disposed on the driving handle, and the pushing member abuts against the rack, and the driving handle is driven to drive the pushing member to move, thereby pushing the rack to extend to the locking position.

[0015] In one or more embodiments, the driving handle is rotatably mounted on the stapler body via a first rotating shaft, an advancing block is provided on the rack, the pushing member corresponds to the advancing block along the moving direction of the rack, and the driving handle is used to convert its rotating movement along the first rotating shaft into the movement of the rack switching from an unlocked position to a locked position.

[0016] In one or more embodiments, the second driving member is disposed on the driving handle, and driving the second driving member drives the driving handle to rotate about the first rotating shaft, so that the pushing member can push the rack to engage with the gear.

[0017] In one or more embodiments, a safety member is provided on the driving handle, and the safety member has a first position and a second position;

[0018] When the safety member is located at the first position, the second driving member is restricted from moving;

[0019] When the safety member is located at the second position, the second driving member can drive the driving handle to rotate, thereby driving the rack to engage with the gear.

[0020] In one or more embodiments, a first limit member is provided on the driving handle, and a second limit member is provided on the locking member, and when the rack moves from the unlocking position to the locking position, the first limit member is locked with the second limit member.

[0021] In one or more embodiments, a first torsion spring is disposed between the stapler body and the driving handle, and the first torsion spring continuously applies an elastic force to the driving handle to move toward an unlocking position.

[0022] In one or more embodiments, a retraction block is provided on the rack, and the retraction block corresponds to the pushing member in the direction of movement along the rack. When the first limit member and the second limit member are unlocked, the first torsion spring drives the driving handle to rotate, thereby driving the rack to return to the unlocked position.

[0023] In one or more embodiments, a relief portion is provided on the rack, and when the rack switches between the locked position and the unlocked position, the gear reciprocates within the interval of the relief portion.

[0024] In one or more embodiments, the locking member is rotatably mounted on the stapler body via a second rotating shaft, and a second torsion spring is provided between the locking member and the stapler body.

[0025] It can be seen from the above that the stapler provided by the present disclosure has the following advantages:

[0026] The first driving member drives the rack from the unlocked position to the locked position to close the actuator on the stapler, at which time the locking member is locked with the rack; when the closed position of the actuator needs to be adjusted, the locking member and the rack are unlocked to reset the rack, thereby opening the actuator for adjusting the actuator position. The structure is simple, the operation is convenient, and the impact of inoperability caused by damage to electronic equipment is reduced.

[0027] An avoidance portion for avoiding the gear is provided on the rack. When the driving handle drives the rack to the locking position and the locking member releases the lock with the rack, during the process of resetting the rack, the gear will only move within the range of the avoidance portion and will not interfere with the extension and resetting of the rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the present disclosure or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a partial structural schematic diagram of the stapler body according to an embodiment of the present disclosure;

[0030] Figure 2 It is a schematic diagram of the structure of another angle portion of the stapler body according to the embodiment of the present disclosure;

[0031] Figure 3 A schematic diagram of the structure of a driving assembly and a rack according to an embodiment of the present disclosure;

[0032] Figure 4 is a schematic structural diagram of a rack according to an embodiment of the present disclosure;

[0033] Figure 5 It is a schematic diagram of the structure of the stapler according to an embodiment of the present disclosure.

[0034] Description of main reference numerals:

[0035] 1. Rack; 11. Forward block; 12. Reverse block; 13. Avoidance part; 2. First driving member; 21. Driving handle; 211. First limiting member; 2111. Notch; 212. Safety member; 213. Second driving member; 214. First axial hole; 22. Pushing member; 3. Locking member; 31. Second limiting member; 311. Protrusion; 4. Third driving member; 41. Gear. DETAILED DESCRIPTION

[0036] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0037] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the embodiments of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0038] like Figures 1 to 5 As shown, in some embodiments, the present disclosure provides a stapler, including: a stapler body, on which are disposed: a rack 1; a first driving member 2, connected to the rack 1, used to push the rack 1 to a locked position; a locking member 3, used to lock or unlock the first driving member 2; a gear 41; a second driving member 213, connected to the rack 1 and used to drive the rack 1 to mesh with the gear 41; a third driving member 4, connected to the gear 41 and driving the gear 41 to rotate; wherein, when the locking member 3 is in the locked position, the locking member 3 is locked with the first driving member 2, and the rack 1 is in an extended state. When the locking member 3 is in the unlocked position, the locking member 3 is unlocked from the first driving member 2, and the rack is in a reset state.

[0039] like Figure 1 and Figure 2As shown, specifically, in order to facilitate the movement of the rack 1, the first driving member 2 of the present disclosure includes a driving handle 21 and a pushing member 22, the pushing member 22 is arranged on the driving handle 21, the pushing member 22 abuts against the rack 1, and the driving handle 21 is driven to drive the pushing member 22 to move, thereby pushing the rack 1 to extend to the locked position. Specifically, a first shaft hole 214 is provided on the driving handle 21, and a first rotating shaft (not shown in the figure) is provided in the first shaft hole 214, and the driving handle 21 is rotatably mounted on the stapler body through the first rotating shaft. A forward block 11 is provided on the rack 1, and the pushing member 22 corresponds to the forward block 11 along the moving direction of the rack 1. When the rack 1 needs to be locked, the driving handle 21 is driven to convert its rotation movement along the first rotating shaft into a movement of the rack 1 switching from the unlocking position to the locking position, thereby realizing the locking of the rack 1, and then the closing of the actuator on the stapler body is realized by locking the rack 1.

[0040] When the actuator needs to be opened to adjust the closed position of the actuator, a first torsion spring (not shown in the figure) is provided between the stapler body and the driving handle 21 so that the driving handle 21 always has a tendency to move from the locked position to the unlocked position. Specifically, the first torsion spring is sleeved on the first rotating shaft, and one end of the first torsion spring is connected to one end of the stapler body, and the other end is connected to the driving handle 21. That is, under the action of the first torsion spring, the driving handle 21 will drive the rack 1 to reset. When the rack 1 is reset, the actuator can be opened to adjust the position, and then the subsequent closing action can be performed.

[0041] like Figure 1 and Figure 2 As shown, in order to facilitate the switching of the rack 1 between the locked position and the unlocked position, a second axial hole 32 is provided on the locking member 3, and a second rotating shaft (not shown in the figure) is provided in the second axial hole 32. The locking member 3 is rotatably connected to the anastomosis device body through the second rotating shaft.

[0042] In order to ensure that the locking member 3 always has a tendency to move toward the locking position so that the locking member 3 can be instantly locked with the driving handle 21, a second torsion spring (not shown in the figure) is provided between the locking member 3 and the stapler body. The second torsion spring is sleeved on the second rotating shaft, and one end of the second torsion spring is connected to the locking member 3, and the other end is connected to the stapler body. When the rack 1 moves to the locking position, it can be locked with the locking member 3.

[0043] like Figure 2As shown, in order to lock the rack 1 in the locked position, a first limit member 211 is provided on the driving handle 21, a notch 2111 is provided on the first limit member 211, a second limit member 31 is provided on the locking member 3, and a protrusion 311 is provided on the second limit member 31. When the rack 1 moves from the unlocked position to the locked position, the first limit member 211 is locked with the second limit member 31 (that is, the notch 2111 and the protrusion 311 are abutted), so that the rack 1 cannot be reset to the unlocked position, thereby achieving the locking of the rack 1.

[0044] In a preferred embodiment, the pusher 22 is rotatably connected to the driving handle 21 via a third rotating shaft (not shown in the figure), and a third torsion spring (not shown in the figure) is sleeved on the third rotating shaft, one end of the third torsion spring is connected to the pusher 22, and the other end is connected to the driving handle 21. The third torsion spring is used to make the pusher 22 always have a tendency to rotate in a direction close to the rack 1, so that the pusher 22 can always correspond to the forward block 11 of the rack 1 in the running direction of the rack 1. When adjusting the position of the actuator, the pusher 22 can push the rack 1 and drive the actuator to close again.

[0045] In order to realize the driving handle 21 driving the rack 1 to move backward, a retraction block 12 is provided on the rack 1, and the retraction block 12 corresponds to the pushing member 22 in the direction of movement along the rack 1. When the first stopper 211 and the second stopper 31 are unlocked, the rack 1 can be driven by the driving handle 21 to reset and move from the locked position to the unlocked position because a second torsion spring is provided between the driving handle 21 and the stapler body.

[0046] Preferably, the second driving member 213 is fixed on the driving handle 21. In order to realize the next cutting action of the stapler body after the actuator is closed, the medical staff drives the second driving member 213 to drive the driving handle 21 to rotate about the first rotating shaft, so that the pushing member 22 can push the rack 1 to engage with the gear 41, and then the first driving member 2 drives the gear 41 to rotate to drive the rack 1 to continue to move forward, so as to perform the cutting action of the stapler.

[0047] In a preferred embodiment, the first driving member 2 is a motor, and the gear 41 includes a first gear 41 arranged at the output end of the motor and a second gear 41 meshing with the first gear 41, and the second gear 41 is used for the tooth meshing transmission of the rack 1 to drive the rack 1 to move.

[0048] In order to ensure that the rack 1 will not be affected by the gear 41 when switching between the locked position and the unlocked position, an avoidance portion 13 for avoiding the gear 41 is provided on the rack 1. When the driving handle 21 drives the rack 1 to the locked position and the locking member 3 releases the lock from the rack 1, during the resetting of the rack 1, the gear 41 will only move within the range of the avoidance portion 13 and will not interfere with the extension and resetting of the rack 1.

[0049] Furthermore, in order to prevent the second driving member 213 from being triggered by mistake and affecting the operating state of the stapler, a safety member 212 is provided on the driving handle 21, and the safety member 212 is rotated and positioned on the driving handle 21 by a pin. Specifically, the safety member 212 has a first position and a second position. When the safety member 212 is located at the first position, the safety member 212 abuts against the second driving member 213, and the second driving member 213 cannot drive the driving handle 21 to rotate, and the second driving member 213 will not be triggered by mistake. When the safety member 212 is located at the second position, the second driving member 213 can drive the driving handle 21, and then drive the rack 1 to mesh with the gear 41 through the driving handle 21, so that the first driving member 2 drives the gear 41 to rotate to drive the rack 1 to continue to move forward, so as to perform the cutting action of the stapler.

[0050] It can be seen from the above that the stapler provided by the present disclosure has the following advantages:

[0051] The first driving member 2 drives the rack 1 from the unlocked position to the locked position to close the actuator on the stapler, at which time the locking member 3 is locked with the rack 1; when the closed position of the actuator needs to be adjusted, the locking member 3 and the rack 1 are unlocked to reset the rack 1, thereby opening the actuator to adjust the actuator position. The structure is simple, the operation is convenient, and the impact of inoperability caused by damage to electronic equipment is reduced.

[0052] An avoidance portion 13 for avoiding the gear 41 is provided on the rack 1. When the driving handle 21 drives the rack 1 to the locking position and the locking member 3 releases the lock from the rack 1, during the resetting of the rack 1, the gear 41 will only move within the range of the avoidance portion 13 and will not interfere with the extension and resetting of the rack 1.

[0053] The working process of the stapler disclosed in the present invention is as follows:

[0054] When the rack 1 needs to be locked, the driving handle 21 is driven to convert its rotational movement along the first axis into a movement of the rack 1 switching from an unlocked position to a locked position, thereby locking the rack 1, and then the actuator on the stapler body is closed by locking the rack 1.

[0055] When it is necessary to open the actuator to adjust the closing position of the actuator, a second torsion spring is provided between the stapler body and the driving handle 21, so that the driving handle 21 always has a tendency to move from the locked position to the unlocked position, that is, when the locking member 3 resists the force of the first torsion spring and is unlocked from the driving handle 21, under the action of the second torsion spring, the driving handle 21 will drive the rack 1 to reset. When the rack 1 is reset, the actuator can be opened to adjust the position and then perform the subsequent closing action.

[0056] After the actuator is closed, the medical staff drives the second driving member 213 to drive the driving handle 21 to rotate about the first rotating shaft, so that the pushing member 22 can push the rack 1 to engage with the gear 41, and then the first driving member 2 drives the gear 41 to rotate to drive the rack 1 to continue to move forward to perform the cutting action of the stapler.

[0057] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. Based on the concept of the present disclosure, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of the above embodiments of the present disclosure, which are not provided in detail for the sake of simplicity.

[0058] The embodiments of the present disclosure are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A stapler, characterized in that: include: The stapler body is provided with: rack; A first driving member, connected to the rack, and used to push the rack to a locking position; A locking member, used to lock or unlock the first driving member; gear; A second driving member, connected to the rack and used to drive the rack to engage with the gear; a third driving member, connected to the gear and driving the gear to rotate; Wherein, when the locking member is located at the locking position, the locking member is locked with the first driving member, and the rack is in an extended state; When the locking member is located at the unlocking position, the locking member and the first driving member are unlocked, and the rack is in a reset state.

2. The stapler according to claim 1, characterized in that: The first driving member includes a driving handle and a pushing member, wherein the pushing member is disposed on the driving handle and abuts against the rack. The driving handle is driven to drive the pushing member to move, thereby pushing the rack to extend to the locking position.

3. The stapler according to claim 2, characterized in that: The driving handle is rotatably mounted on the stapler body via a first rotating shaft, an advancing block is provided on the rack, the pushing member corresponds to the advancing block along the moving direction of the rack, and the driving handle is used to convert its rotating movement along the first rotating shaft into the movement of the rack switching from an unlocked position to a locked position.

4. The stapler according to claim 3, characterized in that: The second driving member is disposed on the driving handle, and driving the second driving member drives the driving handle to rotate about the first rotating shaft, so that the pushing member can push the rack to engage with the gear.

5. The stapler according to claim 4, characterized in that: The driving handle is provided with a safety piece, and the safety piece has a first position and a second position; When the safety member is located at the first position, the second driving member is restricted from moving; When the safety member is located at the second position, the second driving member can drive the driving handle to rotate, thereby driving the rack to engage with the gear.

6. The stapler according to claim 2, characterized in that: The driving handle is provided with a first limiting member, and the locking member is provided with a second limiting member. When the rack moves from an unlocking position to a locking position, the first limiting member is locked with the second limiting member.

7. The stapler according to claim 6, characterized in that: A first torsion spring is provided between the stapler body and the driving handle, and the first torsion spring continuously applies an elastic force to the driving handle to move toward an unlocking position.

8. The stapler according to claim 7, characterized in that: A retraction block is provided on the rack, and the retraction block corresponds to the pushing member in the direction of movement along the rack. When the first limiting member and the second limiting member are unlocked, the first torsion spring drives the driving handle to rotate, thereby driving the rack to return to the unlocking position.

9. The stapler according to claim 8, characterized in that: The rack is provided with an escape portion, and when the rack switches between a locked position and an unlocked position, the gear moves back and forth within the interval of the escape portion.

10. The stapler according to claim 6, characterized in that: The locking member is rotatably mounted on the stapler body via a second rotating shaft, and a second torsion spring is arranged between the locking member and the stapler body.

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