Disclosure of Invention
In view of the above, embodiments of the present application provide a cartridge assembly for a surgical instrument and a surgical instrument that address at least one of the problems of the prior art.
In a first aspect, embodiments of the present application provide a staple cartridge assembly comprising:
the surgical instrument includes a cartridge housing for operably supporting the cartridge assembly therein and a first drive assembly having a distal end contactable with the cartridge assembly, the cartridge assembly comprising:
A staple cartridge body in which staples can be installed;
the nail pushing sliding block can slide relative to the nail bin body;
when the staple cartridge body is filled with staples, the staple pushing slide block protrudes out of the staple cartridge body, so that when the staple cartridge assembly is mounted on the staple cartridge seat, the staple pushing slide block can push the first transmission assembly to move proximally;
When the staple cartridge body is not filled with staples or no staples are arranged in the staple cartridge body, the staple pushing sliding block cannot push the first transmission assembly to move when the staple cartridge assembly is arranged on the staple cartridge seat.
In combination with the first aspect of the present application, in an alternative embodiment, the cartridge body has at least one chute, the chute extending in a first direction, the ejector pin slider being slidably connected to the chute, the ejector pin slider being moved in the first direction by an external force to eject the staples.
With reference to the first aspect of the present application, in an alternative embodiment, a first clamping portion is provided on a side wall of the nail pushing slider, a first clamping portion is provided on the nail cartridge body, the first clamping portion is located on an inner wall of the chute, and the first clamping portion matches with the first clamping portion;
When the staple cartridge body is filled with staples, the first buckling part is clamped in the first buckling part so as to prevent the staple pushing slide block from moving relative to the sliding groove.
In a second aspect, embodiments of the present application provide a surgical instrument comprising the cartridge body according to any one of the first aspects, the surgical instrument further comprising:
A cartridge housing for operably supporting the cartridge assembly therein;
a first drive assembly having a distal end proximal to the proximal end of the cartridge housing;
A control assembly including a trigger located at a proximal end of the first transmission assembly;
Wherein when the nail bin assembly is arranged on the nail bin seat,
The proximal end of the push pin slider contacts the distal end of the first transmission assembly and is configured to push the first transmission assembly to move proximally thereof, the first transmission assembly acting on the trigger and causing the trigger to activate the surgical instrument;
the surgical instrument is in an inactive state when the proximal end of the push pin sled does not contact the distal end of the first drive assembly.
With reference to the second aspect of the present application, in an alternative embodiment, the first transmission assembly includes:
the proximal end of the nail pushing slider can contact with the distal end of the trigger slider;
the driving force generated by the nail pushing slide block is transmitted to the triggering push rod through the triggering slide block;
The round tube push rod is used for triggering the push rod to transmit the pushing force generated by the nail pushing slide block to the round tube push rod, and the round tube push rod acts on the trigger to activate the surgical instrument.
With reference to the second aspect of the present application, in an alternative embodiment, the first transmission assembly further includes:
The distal end of the button slider is contacted with the proximal end of the circular tube push rod, the button slider transmits the pushing force generated by the nail pushing slider to the trigger, and the trigger is electrically connected with the control assembly so as to activate the surgical instrument.
With reference to the second aspect of the present application, in an alternative embodiment, the key slider is provided with a first elastic member, and the first elastic member can contact the trigger during the movement of the key slider, so that the trigger activates the surgical instrument.
In combination with the second aspect of the application, in an alternative embodiment, the surgical instrument further comprises:
the second elastic piece is connected with the first transmission assembly;
When the nail bin assembly is separated from the nail bin seat, the first transmission assembly moves towards the far end of the nail bin assembly and moves to the original position under the elastic action of the second elastic piece.
With reference to the second aspect of the present application, in an alternative embodiment, the trigger sliding block is provided with a second clamping part, and a second clamping part is arranged at the distal end of the trigger push rod, and the second clamping part matches with the second clamping part, so that the trigger push rod and the trigger sliding block synchronously move;
The far end of the circular tube push rod is provided with a third clamping part, the near end of the trigger push rod is provided with a third clamping part, and the third clamping part is matched with the third clamping part, so that the circular tube push rod and the trigger push rod synchronously move.
With reference to the second aspect of the present application, in an alternative embodiment, the surgical instrument further comprises a prompt component that presents a prompt when the trigger triggers and activates the surgical instrument.
According to the nail bin assembly for the surgical instrument, provided by the embodiment of the application, the size or the position of the nail pushing sliding block is changed, so that the nail bin assembly can push the first transmission assembly to move a certain distance when being installed on the nail bin seat, and then the surgical instrument can be activated, and when the nail bin body is used or an empty nail bin, the first transmission assembly cannot be pushed when the nail bin assembly is installed on the nail bin seat, the surgical instrument cannot be activated, and the surgical instrument cannot be operated, so that the empty nail bin or the used nail bin is identified, and the surgical risk caused by the empty nail bin or the used nail bin is greatly reduced.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Detailed Description
In order to make the technical scheme and the beneficial effects of the application more obvious and understandable, the following detailed description is given by way of example. Wherein the drawings are not necessarily to scale, and wherein local features may be exaggerated or minimized to more clearly show details of the local features, unless otherwise defined, technical and scientific terms used herein have the same meaning as those in the technical field to which the present application pertains.
In the description of the present invention, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for convenience of simplifying the description of the present invention, and do not indicate that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, i.e., are not to be construed as limiting the present invention.
In the present invention, the terms "first", "second" are used for descriptive purposes only and are not to be construed as relative importance of the features indicated or the number of technical features indicated. Thus, a feature defining "first", "second" may explicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., and "a number" means at least one, such as one, two, three, etc., unless explicitly specified otherwise.
In the present invention, the terms "mounted," "connected," "secured," "disposed," and the like are to be construed broadly, unless otherwise specifically limited. For example, "connected" may be either fixedly connected or detachably connected or integrally formed, mechanically connected or electrically connected, directly connected or indirectly connected via an intermediate medium, or communicated between two elements or an interaction relationship between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless explicitly defined otherwise, a first feature "on", "above", "over" and "above", "below" or "under" a second feature may be that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in indirect contact via an intermediary. Moreover, a first feature "above," "over" and "on" a second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the level of the first feature is higher than the level of the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the level of the first feature is less than the level of the second feature.
As shown in fig. 1 and 4, the embodiment of the present invention provides a surgical instrument, such as a stapler, which is a conventional minimally invasive surgical instrument, and the following embodiments are described by taking the stapler as an example, and the stapler includes an end effector assembly 1, a sleeve assembly 2, and a handle assembly 3, wherein two ends of the sleeve assembly 2 are respectively connected with the end effector assembly 1 and the handle assembly 3.
The handle assembly 3 includes a housing 36, a key 37, a second transmission assembly (not shown in the figure), a control assembly 35, and a driving assembly (not shown in the figure), wherein the key 37, the control assembly 35, and the driving assembly are installed in the housing 36, two ends of the second transmission assembly are respectively connected with the driving assembly and the end execution assembly 1, the control assembly 35 is electrically connected with the driving assembly and the key 37, an operator sends an execution instruction to the control assembly 35 through the key 37, and the driving assembly drives the second transmission assembly to execute actions based on the instruction of the control assembly 35 and drives the end execution assembly 1 to further execute actions such as cutting, anastomosis, and the like. By way of example, the drive assembly includes a motor and a power module, both of which are located within the housing 36.
One end of the sleeve assembly 2 is connected in the shell 36, the sleeve assembly 2 comprises an outer sleeve 21, a second transmission assembly is inserted in the outer sleeve 21, and the end execution assembly 1 executes cutting, anastomosis and other actions along with the second transmission assembly under the driving force of a motor.
The end effector assembly 1 includes a jaw assembly 13 and a cartridge assembly 10, the jaw assembly 13 including a cartridge housing 131 and a staple abutment 132 pivotally connected to the cartridge housing 131, the cartridge housing 131 for operably supporting the cartridge assembly 10 therein. The nail propping seat 132 has a selective open position posture and a selective closed position posture, and the nail propping seat 132 is matched with the nail cartridge seat 131 and the nail cartridge assembly 10 to clamp or loosen biological tissues.
The end effector assembly 1 further comprises a pushing blade 15, and when the nail pushing seat 132 is matched with the nail cartridge seat 131 and the nail cartridge assembly 10 to clamp biological tissues, the pushing blade 15 is driven by the second transmission assembly to cut the biological tissues under the driving force of the motor.
It should be noted that, the second transmission assembly includes a plurality of transmission mechanisms, and the plurality of transmission mechanisms can respectively drive the pushing blade 15, the nail propping seat 132 and other components to perform actions, and the specific implementation principle of this portion is described in detail in the related patent, which is not described here.
In the related art, when the empty or used staple cartridge is identified in a mechanical manner, the motor receives an operation instruction sent by the control component 35, and the second transmission component acts under the driving of the motor, but based on the configuration of the mechanical structure, the second transmission component cannot drive the end execution component 1 to execute the action, so that the condition that the staple cartridge is damaged due to multiple times of operation of the empty or used staple cartridge is identified, and the operation precision of the anastomat is affected.
Based on this, in the anastomat provided by the embodiment of the application, when the empty or used staple cartridge is installed in the staple cartridge seat 131, the anastomat is not activated, the second transmission component does not act, so that unnecessary operation on the anastomat can be greatly reduced, the action precision of the anastomat can be ensured, and the service life of the anastomat can be prolonged.
As shown in fig. 1, the end near the handle assembly 3 is a proximal end, the end near the end effector assembly 1 is a distal end, or the end near the operator is a proximal end, the end far from the operator is a distal end, and the operator holds the handle assembly 3 at the handle.
Specifically, as shown in fig. 2a, 2b, 3a and 3b, the stapler further comprises a first transmission assembly 30, the distal end of the first transmission assembly 30 being proximal to the proximal end of the cartridge holder 131, and the control assembly 35 comprises a trigger 351, the trigger 351 being located proximal to the first transmission assembly 30. Fig. 2b and 3a illustrate schematic views of the cartridge assembly 10 in a state in which it is not mounted within the cartridge housing 131. Fig. 2a and 3b show schematic views of the cartridge assembly 10 installed in the cartridge housing 131.
The cartridge body 11 of fig. 3b is filled with staples, and when the cartridge assembly 10 is mounted in the cartridge holder 131, the staple pusher block 12 is capable of contacting the first transmission assembly 30 and pushing the first transmission assembly 30 to move proximally in a first direction, i.e. in the direction of arrow s1 shown in fig. 3b, and after a certain distance of movement of the first transmission assembly 30, is capable of contacting the trigger 351, the trigger 351 triggers the control assembly 35 and activates the stapler, which in turn is capable of further operating the stapler.
In an alternative embodiment, before the cartridge module 10 is mounted on the cartridge holder 131, the control module 35 is electrically disconnected from the key 37, which means that the operator cannot receive the instruction by pressing the key 37, and the end effector 1 cannot perform the cutting, stapling, etc. actions.
When the staple cartridge assembly 10 filled with staples is mounted in the staple cartridge seat 131, the staple pushing slider 12 pushes the first transmission assembly 30 to move and act on the trigger 351, and the trigger 351 triggers the button 37 to enable the control assembly 35 to be electrically connected with the button 37, that is, activate the stapler, so that when an operator presses the button 37, the control assembly 35 can receive an operation instruction sent by the button 37, and the control assembly 35 sends an execution instruction to the motor, so that the motor drives the second transmission assembly to drive the end execution assembly 1 to execute an action.
When the used cartridge assembly 10 or the empty cartridge assembly 10 is mounted in the cartridge holder 131, the push pin slider 12 cannot contact the first transmission assembly 30, and thus cannot trigger the trigger 351, and thus cannot activate the stapler, the control assembly 35 and the button 37 are still electrically disconnected, and the stapler cannot perform the action.
In another alternative embodiment, the control assembly 35 is electrically connected to the button 37 before the cartridge assembly 10 is mounted on the cartridge holder 131, but the control assembly 35 needs to receive two electrical signals simultaneously to send out the command, i.e. the first electrical signal sent by the button 37 and the second electrical signal sent after the trigger 351 is triggered. Thus, no action can be performed by pressing key 37 alone until the stapler is activated.
When the cartridge module 10 filled with staples is mounted in the cartridge holder 131, the staple pushing slider 12 pushes the first transmission module 30 to move and act on the trigger 351, the trigger 351 triggers and sends out a second electric signal, and when the control module 35 receives the first electric signal sent by the key 37, the control module 35 receives the first electric signal and the second electric signal at the same time, activates the stapler, and then the control module sends an instruction to the motor based on the first electric signal, and the motor drives the end effector 1 to execute an action.
When the used cartridge assembly 10 or the empty cartridge assembly 10 is mounted to the cartridge holder 131, the staple pusher block 12 does not contact the first drive assembly 30, and the trigger cannot be triggered, so that the control assembly 35 cannot receive the second electrical signal, and the stapler is not activated to perform the action although the control assembly 35 can receive the first electrical signal.
Further, the stapler also comprises a prompting component (not shown in the figure), and when the trigger 351 triggers and activates the stapler, the control component 35 sends out prompting information based on the received second electric signal.
As an example, a lamp bead is fitted in the housing 36, and the state of the cartridge module 10 mounted in the cartridge holder 131 is indicated to the operator by changing the lamp bead. Also by way of example, when the light beads appear green, this indicates that the cartridge body 11 is full of staples, and when the light beads appear yellow, red, or not lit, this indicates that the cartridge body 11 is either unfilled or not full of staples. It should be noted that the meaning represented by the color of the lamp bead can be set according to the requirement, and the embodiment of the application is not limited.
Also by way of example, the alert assembly is an audible alert that emits a first alert tone when the stapler is activated and that does not emit a sound when the stapler is not activated.
Other modes of prompting the prompting component according to the embodiment of the application are also possible, and the embodiment of the application is not limited.
The embodiment of the application also provides a control method of the anastomat, which comprises the following steps:
And when receiving the first electric signal sent by the key 37, the control component 35 sends an instruction to the motor so that the motor drives the second transmission component to drive the end execution component 1 to execute the action.
It should be noted that, during the use of the cartridge assembly 10, the push-pin slider 12 slides distally to push out the staples to achieve the stapling of the biological tissue, so that after the use of the cartridge assembly 10, the position of the push-pin slider 12 changes, and when the cartridge assembly 10 is mounted on the cartridge holder 131, the proximal end of the push-pin slider 12 cannot contact the distal end of the first transmission assembly 30, the first transmission assembly 30 cannot move, the stapler is in an inactive state, and the stapler cannot operate.
In an alternative embodiment, the trigger 351 is a micro-switch, and when the first transmission component 30 acts on the trigger 351 and makes the trigger 351 displace to reach a critical point, the trigger control component 35 can be triggered to be electrically connected with the trigger 351, so as to send out an electrical signal.
Of course, the trigger 351 in the present application is not limited to the micro switch, and the trigger 351 may be one of a photoelectric sensor, a hall element, a pressure sensor, and the like.
Fig. 2a shows a schematic view of the cartridge assembly 10 after it has been mounted to the cartridge housing 131. A schematic view of the cartridge assembly 10 in a state not mounted to the cartridge housing 131 is shown in fig. 2 b. After the cartridge assembly 10 is removed from the cartridge housing 131, the first transmission assembly 30 is moved distally by the second elastic member 14 and moved to the home position so that the identification of an empty or used cartridge can be again achieved when the cartridge assembly 10 is reinstalled in the cartridge housing 131. The second elastic member 14 is preferably a compression spring, but is not limited thereto.
In an alternative embodiment, as shown in fig. 2a and 4, the first transmission assembly 30 includes a trigger slide 31, a trigger push rod 32, and a round tube push rod 33. When the staple cartridge body 11 is filled with staples and the staple cartridge assembly 10 is mounted on the staple cartridge seat 131, the proximal end of the staple pushing slider 12 contacts the distal end of the trigger slider 31 and can push the trigger slider 31 to move, the pushing force generated by the staple pushing slider 12 is transmitted to the trigger push rod 32 through the trigger slider 31, the trigger push rod 32 transmits the pushing force generated by the staple pushing slider 12 to the circular tube push rod 33, and the circular tube push rod 33 moves and acts on the trigger 351 to trigger the trigger 351.
An overall structural perspective view of the stapler is shown in fig. 1. The end effector assembly 1 is capable of a swinging motion relative to the sleeve assembly 2 and the sleeve assembly 2 is capable of a rotational motion relative to the handle assembly 3.
Based on this, as shown in fig. 2b and 5, the trigger slider 31 is provided with a second engagement portion 311, and the distal end of the trigger push rod 32 is provided with a second engagement portion 321, and the second engagement portion 321 matches the second engagement portion 311, so that the trigger push rod 32 moves in synchronization with the trigger slider 31. The trigger push rod 32 is of a sheet structure, and the second clamping part 311 is matched with the second clamping part 321, so that the trigger push rod 32 can be prevented from being separated from the trigger slide block 31 when the end execution assembly 1 swings relative to the sleeve assembly 2, and the recognition effect of an empty nail bin or a used nail bin is further prevented from being influenced when the end execution assembly 1 swings.
As an example, the second fastening portion 321 is a bent portion formed by bending a distal end of the trigger push rod 32, the second fastening portion 311 is a notch formed on the trigger slide 31, and the bent portion is inserted into the notch, so that the trigger slide 31 and the trigger push rod 32 can move synchronously.
As shown in fig. 4 and 6, the distal end of the round tube push rod 33 is provided with a third clamping portion 331, and the proximal end of the trigger push rod 32 is provided with a third clamping portion, and the third clamping portion matches the third clamping portion 331, so that the round tube push rod 33 and the trigger push rod 32 move synchronously. At least a partial region of the tubular push rod 33 is located within the outer sleeve 21, and the proximal end of the tubular push rod 33 is located within the housing 36 of the handle assembly 3. When the sleeve assembly 2 is rotated relative to the handle assembly 3, the tubular push rod 33 follows the outer sleeve 21 in a synchronous rotational movement. The third fastening portion is matched with the third fastening portion 331, so that the round tube push rod 33 drives the trigger push rod 32 to perform synchronous rotation.
As an example, as shown in fig. 6, the third fastening portion 331 is a notch extending along the axial direction of the round tube push rod 33, the third fastening portion is a proximal end of the trigger push rod 32, and the proximal end of the sheet trigger push rod 32 is inserted into the notch, so that the trigger push rod 32 can follow the round tube push rod 33 to perform a rotational movement.
A push rod flange 332 is attached to the proximal end of the tubular push rod 33, and the push rod flange 332 is attached to the housing 36 to allow rotational movement of the sleeve assembly 2 relative to the handle assembly 3.
In an alternative embodiment, as shown in fig. 4, the first transmission assembly 30 further includes a key slider 34, where a distal end of the key slider 34 is connected to the push rod flange 332, and when the push rod flange 332 moves proximally under the pushing force of the push rod slider 12, the key slider 34 can contact the trigger 351 and electrically connect the trigger 351 with the control assembly 35, so as to trigger the trigger 351.
Further, the key slider 34 is provided with a first elastic member 341, and the first elastic member 341 can contact the trigger 351 and trigger the trigger 351 in the process of following the movement of the key slider 34. The first elastic member 341 is a spring plate connected to the key slider 34, which is not limited to this.
As shown in fig. 7, the cartridge assembly 10 provided by the embodiment of the application includes a cartridge body 11 and a push-pin slider 12, wherein the cartridge body 11 is provided with staples, the push-pin slider 12 can slide relative to the cartridge body 11, and when the cartridge body 11 is filled with staples, the push-pin slider 12 protrudes out of the cartridge body 11.
It will be appreciated that when cartridge body 11 is fully loaded with staples, cartridge assembly 10 is mounted to cartridge housing 131, push sled 12, which is raised above cartridge body 11, is able to push first drive assembly 30 proximally and activate the stapler. When the stapler is activated, the first transmission assembly 30 is moved distally by the motor and acts on the pusher block 12, the pusher block 12 being moved in a first direction, i.e. in the direction of arrow s1 shown in fig. 8, to push out the staples of the cartridge body 11 for stapling the biological tissue.
When the cartridge body 11 is not fully filled with staples or is seamless, the staple cartridge assembly 10 is mounted on the cartridge holder 131, and the staple pushing slider 12 cannot contact the first transmission assembly 30, and of course cannot push the staple first transmission assembly 30 to move, so that the stapler cannot be activated, the stapler cannot perform the next operation, and the empty staple cartridge or the used staple cartridge can be identified, thereby greatly reducing the surgical risk caused by using the empty staple cartridge or the used staple cartridge.
As shown in fig. 8, 9 and 10, the cartridge body 11 has at least one chute 111, the chute 111 extends in a first direction, and the ejector pin slider 12 is slidably connected to the chute 111, and the ejector pin slider 12 moves in the first direction under the action of an external force to eject the staples. By way of example, four sliding grooves 111 are shown in fig. 9 in the cartridge body 11, and in fig. 10 the pusher slide 12 is shown to comprise four sliding plates, which respectively match the four sliding grooves 111.
Further, the side wall of the nail pushing slider 12 is provided with a first clamping part 121, the nail bin body 11 is provided with a first clamping part 112, the first clamping part 112 is located on the inner wall of the sliding groove 111, when the nail bin body 11 is filled with staples, the position of the nail pushing slider 12 in the sliding groove 111 can enable the first clamping part 112 to be matched with the first clamping part 121, and the clamping between the first clamping part 112 and the first clamping part 121 can greatly reduce the phenomenon that the nail pushing slider 12 moves due to the fact that external force acts on the nail pushing slider 12, so that misoperation is caused.
As an example, the first fastening portion 121 is a notch formed on the outer wall of the staple pushing slider 12, and the first fastening portion 112 is a protrusion formed on the staple cartridge body 11. The protrusion and the notch are in a circular arc structure, so that the smoothness of the sliding of the push pin sliding block 12 can be improved when the first transmission assembly 30 acts on the push pin sliding block 12.
It should be noted that, the force of the first transmission assembly 30 acting on the push pin slider 12 under the action of the motor is far greater than the blocking force generated by the matching of the first fastening portion 112 and the first fastening portion 121.
It should be understood that the above examples are illustrative and are not intended to encompass all possible implementations encompassed by the claims. Various modifications and changes may be made in the above embodiments without departing from the scope of the disclosure. Likewise, the individual features of the above embodiments can also be combined arbitrarily to form further embodiments of the application which may not be explicitly described. Therefore, the above examples merely represent several embodiments of the present application and do not limit the scope of protection of the patent of the present application.