CN117137561A - Modularized electric anastomat - Google Patents

Abstract

The application discloses a modularized electric anastomat, which comprises an adapter, a handle and a power cabin, wherein the handle comprises a left shell and a right shell, a lower part for holding and an upper part extending from the lower part are assembled and formed, the upper part comprises a through hole for connecting the adapter, the handle and the power cabin into a straight line, the front part of the through hole is used for matching and accommodating the adapter, and the rear part of the through hole is used for matching and accommodating the power cabin. The one or more shaft bores of the rear end of the adapter cooperate with one or more motor coupling shafts of the front end of the nacelle to thereby effect transmission of rotation from the nacelle. The rear end of the adapter is directly matched with the front end of the power cabin, so that the rotation from the power cabin is transmitted and the electrical communication is realized; the concave part of the step of the handle is electrically connected with the front part of the power cabin. The modularized electric anastomat provided by the application can greatly reduce the difficulty of integrated design of the designed electric anastomat, improve the utilization rate of important parts and reduce the design and manufacturing cost.

Description

Modularized electric anastomat

Technical Field

The application relates to the technical field of minimally invasive surgery, in particular to a modularized electric anastomat.

Background

Minimally invasive surgery is accepted by more and more people because the minimally invasive surgery has small trauma to the body surface, reduces infection caused by body surface injury, and does not affect the beauty of the skin near the wound. The electric anastomat is a common type of minimally invasive surgical instruments. Current fully-powered staplers are relatively expensive to manufacture, purchase, and/or operate, and are disposable, such that one is performing the procedure with the powered stapler, because of the high price that one does not use. How to provide a stapler that is cost-effective and allows for convenient and reusable use of certain components is a problem faced by the present application.

Disclosure of Invention

The application provides a modular electric stapler, which reduces manufacturing cost and enables components therein to be replaced or substituted.

An aspect of the present application provides a modular electric stapler including an adapter, a handle detachably connected to the adapter, and a power pod detachably electrically connected to the handle. The handle includes a left housing and a right housing assembled to form a lower portion for gripping and an upper portion for detachably connecting the adapter and the power pod in a straight line. The upper portion includes a through bore having a front portion for matingly receiving the adapter and a rear portion for matingly receiving the power pod.

In another aspect of the application, the stapler may further comprise a main machine, the power compartment being connected to the main machine by means of a cable arranged in the opening at the rear end of the cavity, the main machine providing the power compartment and the handle with the required power and displaying in real time the parameters during the assembly and operation of the electric stapler.

In yet another aspect of the present application, the handle of the electric stapler includes a removable battery for powering the handle and the power pod.

According to the reusable electric anastomat provided by the aspects of the application, the power cabin can be reused, the treatment cost of a patient can be greatly reduced, and the loading unit, the adapter and the handle contacted with human tissues are disposable parts, or the loading unit, the adapter and the handle are independently sterilized, so that the cross infection in operation can be greatly reduced, and the use safety of the instrument is improved. In addition, the host provides power and display for the anastomat, the quality of the handle can be reduced, and the screen display enables the state of the instrument in the operation/surgery process to be clearer, so that the doctor can operate more conveniently. The detachable battery supplies energy to the handle and the power cabin, so that the anastomat is not limited by a use place, and portability is improved.

Drawings

FIG. 1 is a schematic view of a modular electric stapler embodying the present application after assembly;

FIG. 2 is a schematic view of the modular electric stapler of FIG. 1 after disassembly;

FIG. 3 is a schematic view of a handle included in the modular electric stapler of FIG. 2;

FIG. 4 is an exploded view of the handle of FIG. 3;

FIG. 5 is a view of the interior of the half shell of the handle of FIG. 4;

FIG. 6 is a schematic view of the handle of FIG. 3, but outside of the housing;

FIG. 7 is a schematic view of the handle of FIG. 3 from another perspective;

FIG. 8 is a schematic view of a power pod (only a partial tail line shown) included in the stapler of FIG. 1;

FIG. 9 is an exploded view of the power pod of FIG. 8;

FIG. 10 is an isolated view of the pod housing of FIG. 9;

FIG. 11 is a schematic view of the adapter of FIG. 1;

FIG. 12 is a cross-sectional view of the adapter, handle, and nacelle after assembly;

FIG. 13 is an enlarged view of the oval dashed line portion of FIG. 12;

FIG. 14 is a schematic view of a power pod of a non-contact electrical connection;

FIG. 15 is a schematic view of a handle of a non-contact electrical connection;

FIG. 16 is a schematic view of an adapter of a contactless electrical connection;

FIG. 17 is a schematic view of another modular electric stapler embodying the present application, after assembly;

FIG. 18 is a schematic view of the stapler of FIG. 17 after disassembly;

FIG. 19 is a schematic view of a handle containing a detachable battery

Fig. 20 is an exploded view of the detachable battery and the battery holder.

Detailed Description

The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present application are shown in the drawings.

In the description of the present application, the term "front" refers to the side of the surgical instrument that is closer to the patient and "rear" refers to the side of the surgical instrument that is farther from the patient. The terms "upper," "lower," "left," "right," and the like are used for convenience of description and simplicity of operation based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the devices or elements in question must have the particular orientation, be constructed and operated in the particular orientation, and thus should not be construed as limiting the application. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them. The term "multiple" refers to two and more than two numbers.

Example 1

Referring to fig. 1-2, a first embodiment of the present application provides a modular electric stapler comprising an adapter 100, a handle 300 removably connected to the adapter 200, and a power pod 400 removably electrically connected to the handle 300. As shown in fig. 3-7, the handle 300 includes a left housing 310 and a right housing 320, the left housing 310 and the right housing 320 assembled (e.g., crimped) to form a lower portion 330 for gripping and an upper portion 340 extending from and/or supported on the lower portion 340. The upper portion includes a through-hole 350, the through-hole 350 comprising two portions, a front portion 351 of the through-hole 350 for matingly receiving the adapter 200 and a rear portion 352 of the through-hole for matingly receiving the power pod 400. The axis of the through hole 350 of the handle is on the same axis as the axis of the adapter 2002 connected to the front of the through hole and the loading unit 100 and the power pod 400 connected to the rear of the through hole. The power pod 400 is coupled to the adapter 200 directly through the throughbore.

As shown in fig. 4, the left housing 310 and the right housing 320 have substantially the same structure, and the left housing 310 and the right housing 320 are respectively provided with an assembling structure to firmly fix the left and right housings together. The left and right housings of the handle 300 may be made of polycarbonate or similar polymer.

As shown in fig. 5 to 7, the housing in which the rear portion 352 of the through hole 350 of the upper portion of the handle 300 is located has a tubular recess and a recess which is arc-shaped to be semi-circular in shape and extends a distance in the axial direction for receiving and supporting the main body of the power compartment 400. The tubular recess has a rectangular recess with three sides open near the top for guiding the insertion of the pod 400 into the handle 300. The power pod 400 has a corresponding raised step structure. The stepped structure of the power pod 400 includes protrusions that mate with the rectangular shape of the upper portion of the handle housing, and portions of the stepped structure other than the protrusions mate with tubular recesses and semi-circular recesses in the handle assembly.

As also shown in fig. 7, there is a generally semi-annular step 353 at the junction of the front portion 351 and the rear portion 352 of the through bore 350. At the cavity location of the abrupt step size change of the semi-ring shape, one or more shaft holes 230a, 230b, 230c of the rear end of the adapter 200 are directly mated with one or more motor coupling shafts 452a, 452b, 452c corresponding to the front end of the power pod 400, thereby enabling transmission of rotation from the power pod 400. And at the position of the cavity where the semi-annular step 353 is suddenly changed in size, the recess provided at the rear of the adapter 200 is directly inserted into a protrusion 422 provided at the front of the power compartment 400 to thereby achieve electrical communication. A recess for electrical connection is provided at an upper portion of the semi-annular step 353 to be electrically connected with another protrusion 421 at a front portion of the power compartment 400.

The upper portion of the rear end of the adapter 200 is abutted against the upper portion of the handle 300, and one or more of the shaft holes 230a, 230b, 230c and the recess in the lower portion and the lower portion of the adapter 200 are abutted against the power compartment 400 through the through hole 350. The upper portion of the power pod 400 abuts a recess 354 on a step 353 of the handle 300 and one or more motor shafts 452a, 452b, 452c on the lower portion of the power pod matingly engage one or more shaft apertures 230a, 230b, 230c in the adapter to enable transmission of rotational movement. The rear of the adapter 200 is provided with a male stage which matches the front shape of the through hole of the handle 300 and which is detachably coupled with the front 351 of the through hole 350 of the handle 300. The male table is also provided with a latch structure detachably connected to the top of the handle 300, which can securely lock the adapter 200 and the handle 300 together during operation and can separate the adapter 200 and the handle 300 when operation is completed.

As shown in fig. 11, the adapter 200 includes a latch structure, such as an attach/detach button, supported thereon. Specifically, the button is biased to the unactuated condition by a biasing member disposed in or about the male station. The button of adapter 200 includes a lip or boss formed therewith that is configured to snap behind a corresponding lip or boss defined along a groove of the connecting portion of the front portion of handle 300 of the electric stapler. In use, when the adapter 200 is connected to the handle 300, the lips of the button are mounted behind the lips of the front connection portion of the handle 300 so that the adapter 200 and the handle 300 are fastened and held to each other. To allow the adapter 200 and the handle 300 to be disconnected from each other, the button is pressed or actuated against the bias of the biasing member to disengage the lip of the button from the lip of the front connecting portion of the handle 300.

The front portion 351 of the through hole 350 at the upper portion of the handle 300 has a smaller size than the rear portion 352 of the through hole 350. The rear limit 352 of the through-hole defines the depth of the nacelle 400 into the through-hole 350. The step 353 corresponds to a limiting plate that limits the extreme position of the front of the nacelle 400. The housing interior where the rear portion 352 of the through hole 350 is located is provided with guide grooves 3521, which guide grooves 3521 mate with guide rails 411 on the housing of the power pod 400, thereby guiding the mounting of the power pod 400 to the handle 300 and enabling the orientation of the power pod 400 relative to the handle 200 to be determined. A plurality of pairs of guide grooves exist in the guide grooves 3521 in a symmetrical structure. At the rear 352 of the through hole 350 there are flat surfaces formed by the left and right housing interiors for supporting the corresponding portions of the power pod 400. In addition, a relatively large inverted T-shaped guide groove is provided at the lower portion of the platform for guiding the inverted T-shaped guide rail at the lower portion of the power compartment 400 to be correspondingly inserted therein so as to fix the bottom of the power compartment 400.

Fig. 12 shows a cross-sectional view of adapter 200, handle 300, and power pod 400 after assembly, partially illustrating the latching configuration. The snap-lock arrangement of the adapter 200, handle 300 and power pod 400 combination is shown in fig. 13, with the mating connection between the important features of the components.

As shown in fig. 6, a plurality of control holes 360 are provided near the junction of the upper portion 340 and the lower portion 330 of the handle, and one or more switch circuit boards 361, which are hard or flexible circuit boards, are correspondingly mounted on the inner sides of the control holes 360. The switch circuit board 361 is in signal connection with the motor drive board and control board in the power pod 400, and issues instructions to operate the power pod 400, adapter 200, and loading unit 100 of the electric stapler. The switch circuit board 361 is in electrical and/or signal communication with a recess 354 at the top of the step of the handle 300. The switch circuit board 361 is provided with a plurality of control interfaces that are in press-actuating contact with a plurality of keys 362 provided outside the control holes through the control holes 360, and the switch circuit board 361 is connected by a flexible cord (i.e., flexible ribbon cable, not shown in the figure). These flexible flat cables are routed according to the housing profile. The keys are provided with silica gel, or the keys are made of silica gel, so that a user can have good touch feedback. After pressing these keys, the travel switch of the switch circuit board 361 generates a signal change, and the control board in the power cabin receives the signal change to control the motor to execute a corresponding action. The switch circuit board 361 can be fixed on the housing of the handle by screws, and the flexible wire row connected with the switch board is routed according to the shape change of the housing of the handle, and is closer to the housing. The switch circuit board is provided with a travel switch, so that the cost is low. The buttons 362 are in signal connection with a drive board 460 and a main control board 470 in the motor assembly, and instruct to operate the electric stapler.

Among these keys 362 is a switch control button 3621 that can be actuated in the left, right, up and down directions upon depression thereof, enabling the jaws of the electric stapler to open, close, deflect left, deflect right. The left and right housings of the handle 300 support switch control buttons 3621 and support switch control interfaces disposed on the switch circuit board 361 that are in contact with the interior of the switch control buttons 3621 and are in alignment, actuation of the control buttons actuating the control interfaces in operative alignment therewith, exerting a force on the switch control interfaces.

Pressing down on switch control button 3621 causes motor control board 470 to provide an appropriate signal to motor 450 to close the jaws of the loading unit and/or to fire staples from within the jaws of the loading unit. Pressing up on switch control button 3621 causes the motor control board to provide a signal to the motor to retract the staple sled and open the jaws of loading unit 100. Pressing the switch control button 3621 to the right causes the motor control board 470 to provide a signal to the motor 450 to swing the jaws to the right relative to the body portion of the loading unit 100. Similarly, toggling control button 3621 to the left causes motor control board 470 to provide a signal to motor 450 to swing the jaws to the left relative to the body portion of the loading unit.

A left pair of control buttons 3622 and a corresponding control interface, and a right pair of control buttons 3623 and a corresponding control interface are also respectively arranged on the left and right housing sides where the switching control buttons 3621 are positioned, and the two pairs of control buttons can be actuated after being pressed, so that the jaw of the anastomat can rotate anticlockwise, clockwise and the like. Specifically, actuation of the left pair of control buttons 3622 causes the jaws to rotate in a first direction, e.g., counter-clockwise, relative to the powered stapler. While actuation of the right pair of control buttons 3623 causes rotation of the jaws relative to the powered stapler in an opposite, e.g., second direction, e.g., clockwise.

The keys 362 further include a third pair of safety switches 3624, 3625 disposed above the pair of control buttons 3622 of the left housing and the pair of control buttons 3623 of the right housing, respectively. Actuation of the left safety switch 3624 or the right safety switch 3625 will cause the corresponding right or left safety switch or key to permit the drive device to enter an activated state. Entering the armed state indicates to the electric stapler that loading unit 100 is ready to eject staples therefrom. And the pair of safety switches 3624, 3625 are also provided with indicator lights which are extinguished to indicate that the staple cartridge is not loaded or is not fully clamped; the indicator lights are turned on to indicate that the jaw staple cartridge is completely clamped, and the equipment enters a safe mode; when the indicator lamp flickers, the safety switch is pressed down to prepare for entering a nail shooting mode, after the nail shooting mode is completed, the mode is switched to the safety mode, if the safety switch is pressed down in the nail shooting mode, the knife can be retracted to the initial position, the jaw is opened, and the indicator lamp is extinguished again.

As shown in fig. 4, 12 and 13, the handle 300 includes a latch structure detachably coupled to the adapter 200 and the power pod 400, respectively. The latch structure includes a push-pull button 341 provided at the top end of the upper portion 340 of the handle 200, a spring 342 for elastically fixing the push-pull button 341, and a base plate 343 for elastically fixing the spring to the housing. The push-pull button 341 is engaged with the right and left housings of the handle to be pushed forward. The push-pull button has a downwardly protruding ramp plate corresponding to the chute 412 at the top of the power pod 400 for insertion or sliding out of the chute. The top of the power pod 400 can be locked or unlocked by pushing and pulling the push-pull button back and forth by hand.

An electrical connector recess 240 provided at the rear of the adapter 200 is used for electrical and/or signal connection to the control board of the power pod 400. The electrical connector recess 240 is used to allow calibration and communication information (i.e., identification information, lifecycle information, system information, force information) to reach the motor control board via the first boss 422 of the power pod 400.

The upper portion of the step 353 is provided with a recess 354 for electrical connection, configured to transmit data information or signals from the power compartment 400 through the recess 354, the recess 354 being electrically connected with the second protrusion 421 of the front portion of the power compartment 400.

As shown in fig. 5, the handle 300 is also provided with a memory 363 for storing a unique identifier associated with the handle 300 and which can be updated to mark the handle as used and inhibit reuse of the handle. The memory 363 is on the switch circuit board 361, and the power pod 400 can read the data information in the memory 363 and recognize whether the handle 300 has been used. If the handle has been used, replacement is required.

If the handle 300 has been proven to be used, the left pair of control interfaces of the left housing of the handle 300 and the right pair of control interfaces of the right housing of the handle 300 will not be activated or deactivated during use.

The lower portion 330 of the handle 300 is provided with a slip-preventing texture. Optionally, a rubber coating is provided at the portion of the lower portion 330 that is held, and a grain is provided on the rubber coating, so that the holding is more comfortable, and slipping during holding can be prevented.

As shown in fig. 8-10, the power pod 400 includes a housing 410, one or more motors 450 housed within the housing 410, a drive plate 460 that drives the one or more motors 450, and a control plate 470 that is coupled to the drive plate 460. The interior of the housing 410 includes a cavity. The cavity may have different shapes, such as cylindrical, rectangular, etc. A supporting protrusion is also arranged in the cavity of the shell and is used for supporting the driving plate or the control plate positioned on the supporting protrusion. The material of construction of at least a portion of the housing of the nacelle may be a transparent rigid plastic or the like.

The front end of the cavity has an opening 414 for supporting the motor 450 and the front structure connected in series by the shaft of the motor. The front end opening 414 is positioned with a front plate 420, a middle pressure plate 430 and a motor mount 440 that are abutted together. The front plate 420 of the power compartment 400 closes the front of the power compartment 400, and the front plate 420 has a size larger than the front opening of the power compartment 400, and the front plate 420 conforms to the end size of the front boss of the power compartment 400. The outer side of the front plate 420 is provided with a plurality of mounting holes fixed with the case 410. The front plate 420 of the housing of the power pod 400 of the electric stapler is connected with the outer shell by ultrasonic welding, so that the sealing and the waterproofing are realized. The one or more motors, the drive plate and the control plate are mounted at the rear of the motor mount, the one or more motors are disposed between the drive plate and the control plate, and the drive plate 460 and the control plate 470 are connected by a flexible cord row.

The front plate 420 of the power pod is provided with a protruding structure for protecting the motor shaft in addition to two protrusions 421, 422 for electrical extension, one or more motor shaft rods 452a, 452b, 452c for quick installation and detachment with the adapter 200 and the handle 300. One or more holes are provided in the front plate of the nacelle through which one or more motor shafts pass so that the motor shafts can protrude from the front plate 420, as shown in fig. 8.

As shown in fig. 9, the middle pressure plate 430 is disposed between the motor support 440 and the front plate 420 to isolate and seal the rear motor support 440. The intermediate pressure plate 430 is placed directly into the front opening of the power pod 400 and is shaped and sized to conform to the shape of the front opening of the power pod cavity. The sealing groove can be arranged in the front end opening, and the sealing ring is arranged in the sealing groove, so that the front end opening is further sealed. The intermediate pressure plate 430 is provided with a hole through which the motor coupling rod 452 passes, a groove through which the electrical connection structure passes, and a plurality of mounting holes to which the motor mount 440 is fixed.

The front plate 420 is provided with one or more motor shaft rods 452 for coupling rotation with one or more motor shaft rods 451 extending from the axis of the motor 450. Each motor shaft 451 is provided with a cross section, such as a three-sided cross section, for transmitting torque or rotational force. The motor link rod 452 is coupled to the motor shaft 451 by a coupling and a spring. One end of the coupling is connected to a corresponding motor shaft 451 of the motor 450 and the other end is keyed to one end of the coupling shaft 452. The other end of the motor coupling rod extends a distance forward from the front plate of the nacelle. Springs are provided between the motor coupling shafts and the respective motors to bias away from the respective motors. The number of motors together with the number of motor shafts and motor coupling shafts is preferably three. The three motor coupling shafts 452a, 452b, 452c extend forward from the front plate 420 and have a three-sided cross-section. The power pod 400 is assembled to the handle 300 and further to the adapter 200 with the three link rods 451 directly passing through the through holes in the handle to engage corresponding three-sided cross-sectional shaft holes in the adapter 200 without any obstruction in the through holes. The three shafts 4511 of the power pod 400 are electrically and/or mechanically engaged with corresponding shaft bores 230a, 230b, 230c in the adapter 200. Preferably, the three motor coupling shafts are arranged on a common plane or in parallel alignment with each other.

The one or more motor coupling rods 452 are arranged in parallel spaced relation to each other in a middle region of the front plate 420, i.e. at least one motor coupling rod is arranged in the centre of the front plate, around which centre motor coupling rods the other motor coupling rods are arranged. The one or more motor coupling rods 452 are provided on both sides with a protective structure 423 protruding from the front plate. The protective structure 423 can be matingly inserted into a corresponding recess in the adapter 200 to effect securement of the front of the power pod 400. The protective structure 423 may be a panel, in the form of a cambered surface, or in other shapes such as rectangular, triangular, etc.

The two protrusions 421, 422 of the front plate 420 are symmetrically arranged on a line perpendicular to the line connecting the plurality of motor coupling shafts 452a, 452b, 452 c. The axes of the protection structures of the motor connecting shafts are on the same straight line with the axes of the motor connecting shafts. The two 421, 422 are arranged at both ends of the connection line perpendicular to the motor coupling shafts 452a, 452b, 452c, respectively. The two protrusions 421 and 422 of the front plate 420 and the protecting structure 423 are uniformly and symmetrically distributed on the front plate 420.

The electrical connection between the first protrusion 421 of the power pod 400 and the recess 240 of the adapter 200 is either contact or non-contact, and the electrical connection between the second protrusion 422 of the power pod 400 and the recess 354 of the step of the handle may also be either contact or non-contact.

The electric connection connector realizes the electric connection with the handle and the adapter, has waterproof design, and prevents the entry of water vapor during high-temperature high-humidity sterilization, thereby damaging the electronic components.

When the electrical connection is contact-type, a plurality of electrical contact pieces are provided in the two protrusions 421, 422 of the electrical connection structure, and electrical insertion grooves capable of allowing the electrical contact pieces to be inserted are provided in the two recesses 240, 354 of the electrical connection structure, as shown in fig. 7, 8, 11.

When the electrical connection is non-contact, a coil (i.e., an antenna such as a transmitting antenna or a receiving antenna) on one side and a circuit board connected to the coil are provided in the two protruding portions 421, 422 of the electrical connection structure, respectively, and a coil (i.e., an antenna such as a receiving antenna or a transmitting antenna) on the opposite side and a circuit board connected to the coil are provided in the two recessed portions 240, 354 of the electrical connection structure, respectively, as shown in fig. 14, 15 and 16. For example, the rear side coil of the recess 240 provided at the rear end of the adapter 200 and the recess 354 of the handle step may be positioned adjacent to the front side coil disposed in the two protrusions 421, 422 of the power compartment 400 to form a transformer. The rear coils in the two recesses are respectively connected with the respective control circuit boards. And the front coils of the two convex parts of the power cabin are also connected with corresponding control circuit boards. The back side coils and the front side coils, although located close to each other, are not in direct physical contact. Wirelessly transmitting power from the front side coil of the power pod includes inductively transmitting power (or vice versa) to the rear side coil of the adapter 200 and handle 300 via a transformer, and wirelessly transmitting data or signals from the front side coil of the power pod to the rear side coil of the adapter 200 and handle 300 includes inductively transmitting data to the adapter 200 and handle 300 via a transformer, and wirelessly transmitting feedback signals from the adapter and handle to the power pod.

When the adapter 200 is assembled to the handle 300 and the power pod 400, each of the motor coupling shafts 450 of the power pod 400 are keyed with a corresponding shaft bore of the adapter 200 such that rotation of each of the coupling shafts 4511 of the power pod 400 causes a corresponding rotation of the corresponding shaft bore of the adapter 200. The mating of the motor shaft of the power pod 400 with the shaft bore of the adapter 200 allows each to independently transmit rotational forces. The motor shafts of the power pod 400 are configured to be independently rotated by respective motors.

In use, when the adapter 200 is mated with the power pod 400, each of the motor coupling shafts 452a, 452b, 452c of the power pod is coupled with the corresponding rotatable coupling 230a, 230b, 230c of the adapter 200. In this regard, the coupling between the corresponding first coupling shaft 452a and the first connector sleeve (i.e., first shaft aperture) 230a, the coupling between the corresponding second coupling shaft 452b and the second connector sleeve (i.e., second shaft aperture) 230b, and the coupling between the corresponding third coupling shaft 452c and the third connector sleeve (i.e., third shaft aperture) 230 are keyed such that rotation of each of the coupling shafts 452a, 452b, 452c of the surgical device 100 causes corresponding rotation of the corresponding connector sleeve 230a, 230b, 230c of the adapter 200.

The motor support 440 is provided with mounting holes for mounting one or more motors 450 and mounting holes for a driving board 460 and a control board 470, the one or more motors 450 and the driving board 460 and the control board 470 being mounted at the rear of the motor support 440, the motor driving board and the control board being disposed at the sides of the motors, respectively, the motor 450 being disposed between the driving board 460 and the control board 470, the driving board 460 and the control board 470 being connected by a flexible ribbon cable (i.e., a flexible cord row). The motor support 440 further comprises two recesses for seating the electrical structures within the two protrusions 421, 422 of the electrical connection. The two recesses are preferably arranged on the upper and lower side of the motor mount.

The upper and lower grooves of the motor support 440 are provided therein with electrical connection structures connected with the driving plate 460 and the control plate 470, and the electrical connection structures in the upper and lower grooves extend forward from the grooves to protrude through the middle pressure plate 430 and the front plate 420, thereby forming protruding electrical connection structures of the front plate 420.

Each motor 450 is controlled by a corresponding motor controller disposed on a drive plate 460. These motors may be, for example, 3-phase brushless DC motors. Each of the motor controllers is coupled to a main controller or main chip disposed on the control board 470, and the drive board 460 is connected to the control board 470 by a ribbon cable.

Each of the coupling shafts 452a, 452b, 452c of the nacelle has an axial coupling and/or a substantially non-rotatable connection with the couplings 230a, 230b, 230c of the adapter 200, and the mating therebetween allows rotational forces to be independently transferred via each of the three corresponding coupling interfaces, the rotational forces being selectively transferred from the motors 452a, 452b, 452c of the nacelle 400 to the adapter 200.

The selective and independent rotation of the first motor link 452a of the power pod 400 corresponds to the selective and independent opening and closing of the jaws of the loading unit 100 and the actuation of the stapling/cutting assembly of the jaws of the loading unit. Moreover, the selective and independent rotation of the second motor link 452b of the power pod 400 corresponds to the selective and independent oscillation of the tool assembly of the loading unit 100 transverse to the longitudinal axis of the electric stapler. In addition, selective and independent rotation of the third motor link 452c of the power pod 400 corresponds to selective and independent rotation of the loading unit relative to the electric stapler about the longitudinal axis.

The main controller of the motor drive board 460 may communicate with the motor controller through an FPGA (field programmable gate array) that provides control logic signals (e.g., propulsion, actuation, etc.). The control logic of the motor controller outputs corresponding excitation signals to the respective motors using fixed frequency pulse width modulation. The host controller is also signal coupled to a memory, where the memory is disposed on the host controller circuit board. The main controller is, for example, an ARM Cortex M4 processor.

The motor coupling shaft 452 is enabled by rotation of the corresponding motor 450 to drive the shaft and/or gear assembly of the adapter 200 to perform various operations of the electric stapler. Specifically, power pod 400 drives the shaft and/or gear assembly of adapter 200 to selectively move the jaws of loading unit 100 relative to the proximal body portion of loading unit 100, rotate loading unit 100 clockwise or counterclockwise about the longitudinal axis, move the jaws relative to the anvil assembly of the loading unit, and/or fire staples from within the jaws of loading unit 100.

The power cabin 400 and the handle 300 in the modularized electric anastomat can realize quick insertion and quick release, wherein the handle 300 is disposable, and the power cabin 400 comprises a motor, a motor shaft lever, a coupling, a motor coupling lever, a pin, a motor driving plate and a control plate, and can be repeatedly used after being disinfected and cleaned (such as immersed or sterilized). Under a normal state, the motor drives the motor shaft lever to rotate; when the motor fails, a worker can take down the power cabin and quickly replace the power cabin, so that the motor shaft lever is driven to rotate by the handle, the operator is prevented from replacing a new electric anastomat, and the pain of a patient is relieved.

In addition, it is also shown in fig. 1 and 2 that the electric stapler may include a main machine 500 detachably and electrically connected to the power pod 400. The cavity 412 of the housing 410 of the power pod may include, in addition to the front opening 414, a rear opening for the cable to extend from the cavity to the exterior for detachable electrical connection with the main body 500 of the electric stapler or directly with the power source. The host 500 includes a power module that provides the power pod 400 and/or handle 300 with the required power and a display for displaying parameters during assembly and operation of the electric stapler in real time.

The housing portion of the handle 300 of the electric stapler is ergonomically designed to facilitate comfortable, quick and efficient operation of the electric stapler by a physician. The handle, the adapter and the power cabin can be inserted and loosened quickly, and the locking design of the handle prevents the handle, the adapter or the power cabin from falling off in the use process after assembly. The power pod 400 of the electric stapler provides driving force for the electric stapler and is an important component of the electric stapler. The power cabin is inserted and used without worrying about battery exhaustion in the operation process, compared with an electric anastomat with a built-in battery, the power cabin has larger and clearer screen for displaying information when being matched with a host machine, and related information in the real-time cutting and anastomosis process can be more intuitively and comprehensively displayed on a large screen of the host machine, and the displayed information is more, so that interaction between doctors and equipment is facilitated. The host can be used repeatedly and repeatedly.

Example two

Referring to fig. 17-18, a second embodiment of the present application provides another modular electric stapler including a loading unit 100, an adapter 200 detachably connected to the loading unit, a handle 300 'detachably connected to the adapter, and a power pod 400' detachably connected to the handle. The modular electric stapler of this embodiment has the same basic structure as the stapler of the first embodiment, and differs in that: the electric anastomat does not comprise a host independently arranged outside, but is integrated into the power cabin in the form of a circuit board (comprising a processor) through the main part of the host in the first embodiment to form an integral part, for example, the circuit board is integrated above a motor in the power cabin; while the handle 300 'may contain a removable battery and a circuit board connected to the battery, the cavity of the power pod 400' includes only a front opening and then a wireless cable, the power required by the power pod 400 'may be provided by the battery of the handle 300' and the battery may also provide power to the processor and communicate. The power pod 400' is provided with an indication icon or a display screen for displaying relevant information of the anastomat in the processes of assembly, cutting and anastomosis in real time.

The battery in the handle 300 'may be used to provide power to the switch board 361, electrical connection structure, power pod 400', etc. When the electric quantity of the battery is exhausted, the original battery can be detached, and another new battery is installed, so that the normal continuous power supply of the electric anastomat is ensured.

As shown in fig. 19, the free end or grip portion of the lower portion of the handle 300' is provided with a battery compartment 367, and the battery 370 is detachably connected to the battery compartment 367, so that the battery 370 can be conveniently replaced, and stable and continuous electric energy can be provided to the electric stapler, thereby improving the working reliability of the electric stapler. As shown in fig. 20, a battery holder 371 is further provided outside the battery 370. The battery 370 may be integral with the battery holder 371 or separable. The battery 370 may be partially or fully seated in the battery seat 371. When the battery 370 is installed into the battery compartment 367, the battery holder may be partially or entirely outside the battery compartment 367. The battery holder 371 is provided with a recess 372 that accommodates the battery 370. Preferably, the battery holder 371 is located at a lower portion of the battery 370. When the battery 370 is separated from the battery holder 371, the battery 370 may be sterilized without contact with the outside during use, or may be simply sterilized and put into use again. The battery is, but is not limited to, a disposable battery, such as a lithium battery. The battery chamber also comprises a locking mechanism for the battery, and the locking mechanism is used for locking and fixing the battery chamber and the battery. Specifically, the locking mechanism may include a locking button 368 provided in one of the battery compartment and the battery, and an engaging portion 369 provided in the other of the battery compartment and the battery, and a locking portion that mates with the engaging portion 369 provided on the base of the battery 370 is further provided on the locking button 368. When the battery is installed and connected to the battery chamber, the locking part is clamped with the joint part, so that the battery is clamped on the battery chamber. When the battery needs to be disassembled, the locking part can be triggered to be released from the joint part by pressing the locking button. A seal is present between the battery compartment and the junction for sealing around the junction in a locking portion closed position to protect the battery located within the housing compartment, the seal being compressible by closure of the locking portion. When the battery is installed in the battery chamber, the battery is not contacted with the handle. The battery is contained in a chamber that is not in contact with the patient's body fluid and the battery is reusable.

The modular electric stapler of the second embodiment is more flexible in use than the former electric stapler without a host connected to the rear end of the electric stapler, and no external cable is caught.

Note that the above is only a preferred embodiment of the present application and the technical principle applied. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, while the application has been described in connection with the above embodiments, the application is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the application, which is set forth in the following claims.

Claims (10)

1. A modularized electric anastomat comprises an adapter, a handle detachably connected with the adapter and a power cabin detachably connected with the handle, and is characterized in that,

the handle comprises a left shell and a right shell, the left shell and the right shell are assembled to form a lower part for holding and an upper part for connecting the adapter and the power cabin in a straight line, the upper part comprises a through hole, the through hole comprises two parts, the front part of the through hole is used for matching and accommodating the adapter, and the rear part of the through hole is used for matching and accommodating the power cabin;

a generally semi-annular step exists at the connection part of the front part and the rear part of the through hole, one or more shaft holes at the rear end of the adapter are directly matched with one or more motor connecting rods corresponding to the front end of the power cabin at the position of a cavity with abrupt change of the semi-annular step, so that the rotation from the power cabin is transmitted, and a concave part arranged at the rear part of the adapter is directly spliced with a convex part arranged at the front part of the power cabin to realize electrical communication; the upper part of the semi-annular step is provided with a concave part for electric connection and another convex part at the front part of the power cabin for electric connection.

2. The electric stapler according to claim 1, wherein said power pod comprises a housing, one or more motors housed in said housing, a driving plate driving said one or more motors and a control plate connected to said driving plate, characterized in that the interior of said housing comprises a cavity, the front end of said cavity having an opening, said power pod comprising a front plate, a medium voltage plate and a motor support, which are also abutted together at the position of said opening of said front end, said front plate being provided with said two protrusions and said one or more motor coupling shafts for quick mounting and dismounting with said adapter and/or said handle.

3. The electric stapler according to claim 1, wherein a plurality of control holes are provided at the connection of the upper portion and the lower portion of the handle, one or more switch circuit boards are correspondingly installed at the inner sides of the plurality of control holes, a plurality of control interfaces penetrating through the plurality of control holes are provided on the one or more switch circuit boards, and a plurality of keys are provided at positions, aligned with the plurality of control interfaces, of the handle at the outer sides of the plurality of control holes.

4. The powered stapler of any one of claims 1, wherein the handle includes a memory, and the power pod is capable of reading data information in the memory and identifying whether the handle has been used.

5. The electric stapler according to claim 2, wherein the one or more motor coupling shafts are disposed in parallel with each other at a middle region of the front plate at a distance from each other, both sides of the one or more motor coupling shafts are provided with a protection structure protruding forward from the front plate, and a rear end of the adapter is provided with a recess for insertion of the protection structure.

6. The electric stapler of claim 2, wherein the one or more motors, the drive plate, and the control plate are mounted at a rear of the motor mount, the one or more motors being disposed between the drive plate and the control plate.

7. The electric stapler according to claim 1, wherein the top of the handle is provided with a locking structure detachably connected to the adapter and the power pod, respectively.

8. The electric stapler according to claim 2, wherein said motor support is provided with two grooves, wherein an electric connection structure connected with said driving plate and said control plate is provided in said two grooves, said electric connection structure extending forward from said two grooves to protrude through said middle pressure plate and said front plate, thereby forming said two protrusions of said front plate.

9. The electric stapler according to claim 2, further comprising a main machine, wherein the main machine is detachably and electrically connected with the power cabin through a cable arranged in a cavity rear end opening of the power cabin, the main machine provides required electric power for the power cabin and the handle, and parameters during assembly and operation of the electric stapler are displayed in real time.

10. The powered stapler of claim 1, wherein the handle includes a detachable battery that is detachable from a battery mount, the handle powering the power compartment.