CN106821441B - Electric anastomat and firing rollback control method thereof - Google Patents
Electric anastomat and firing rollback control method thereof Download PDFInfo
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- CN106821441B CN106821441B CN201710110320.6A CN201710110320A CN106821441B CN 106821441 B CN106821441 B CN 106821441B CN 201710110320 A CN201710110320 A CN 201710110320A CN 106821441 B CN106821441 B CN 106821441B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00017—Electrical control of surgical instruments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
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Abstract
The invention relates to an electric anastomat. The electric anastomat is provided with an electric mode and a manual mode, when the electric anastomat is in the electric mode, the electric control unit is opened, the manual control unit is closed, the electric control unit is controlled to control the electric driving mechanism to work in an electrifying mode to generate driving force, and the driving force is transmitted to the firing mechanism through the transmission mechanism to enable the firing mechanism to complete firing and retraction actions; when the electric anastomat is in a manual mode, the manual control unit is opened, the electric control unit is closed, the manual control unit is controlled to control the manual driving mechanism to work so as to generate driving force, and the driving force is transmitted to the firing mechanism through the transmission mechanism so that the firing mechanism finishes firing and retreating actions. The electric stapler can automatically work in an electric mode, the using difficulty of an operator is reduced, the electric stapler is convenient to use, the electric stapler can be manually intervened to continuously fire and retract to realize tissue cutting and suturing in the case of insufficient power or instrument failure in the manual mode, the safety of operation is improved, and the operation risk of a patient is reduced.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to an electric anastomat.
Background
An electric stapler is an electric surgical instrument for severing, resecting or creating an anastomosis of tissue. The electric anastomat is generally applied to the surgical operations of departments such as common surgery, thoracic surgery, urinary surgery, obstetrics and gynecology, pediatrics and the like.
Most of the existing anastomat is a purely manual operation instrument. The manual operation is to realize the firing action to anastomotic tissue in a purely mechanical mode, the firing process needs huge firing force to complete the cutting and closing of an anastomotic stoma, the requirement on a user is extremely high, once the skill and the strength are mastered, the instrument is not fired or only half of the firing is easy to cause, the insufficient firing force can influence the tissue closing effect, the cutting and closing are incomplete, the operation is finally failed, and the risk is extremely high. Along with the development of automation trend and in order to reduce the difficulty of manual operation, the electric anastomat is gradually researched and used, and the use of the electric appliance improves the stability during surgical cutting anastomosis and greatly improves the use condition of doctors.
However, although the conventional electric stapler can realize automatic firing and retraction operations in normal operation, the electric stapler cannot continue to complete suturing and retraction actions when a fault occurs or the battery power is insufficient. In the above situation, if the cutting suture is not finished at this time, only the pause suture can be selected, the withdrawal operation can be completed only by an external instrument, the operation is very troublesome, the safety of the patient has a great hidden trouble, and the risk of the operation is very great.
Disclosure of Invention
The invention aims to solve the technical problem of providing an electric anastomat with automatic firing back and manual firing back functions and free switching of the automatic and manual firing back functions.
In order to solve the technical problems, the invention adopts a technical scheme that: the electric anastomat comprises an anastomat body and a working head, wherein the anastomat body comprises an anastomat body, a transmission mechanism, a driving mechanism and a control unit, the working head is arranged on the anastomat body and comprises a firing mechanism, the firing mechanism is connected with the driving mechanism through the transmission mechanism and comprises an electric driving mechanism and a manual driving mechanism which are respectively connected with the transmission mechanism, the control unit comprises an electric control unit connected with the electric driving mechanism and a manual control unit connected with the manual driving mechanism, the electric anastomat is provided with an electric mode and a manual mode, when the electric anastomat is in the electric mode, the electric control unit is opened and the manual control unit is closed, the electric control unit is controlled to electrify the electric driving mechanism to generate driving force, and the driving force is transmitted to the firing mechanism through the transmission mechanism to enable the firing mechanism to complete firing and retreating actions; when the electric anastomat is in a manual mode, the manual control unit is opened and the electric control unit is closed, the manual control unit is controlled to control the manual driving mechanism to work so as to generate driving force, and the driving force is transmitted to the firing mechanism through the transmission mechanism so that the firing mechanism completes firing and retraction actions.
Preferably, the manual driving mechanism comprises a driving piece connected with the transmission mechanism, the driving piece is movably arranged on the body and extends along the front-back direction, the driving piece can advance and retreat to drive the firing mechanism to perform firing and retreating actions, a plurality of tooth grooves are formed in the bottom of the driving piece, the tooth grooves are linearly distributed along the extending direction of the driving piece, the manual control unit comprises a first firing piece, ratchet teeth and an elastic piece, the first firing piece is pivotally connected to the body and located below the driving piece, the ratchet teeth are pivotally connected to the first firing piece, the elastic piece is arranged between the first firing piece and the ratchet teeth, the elastic piece can provide elastic force to enable the ratchet teeth to tilt and insert into the tooth grooves of the driving piece, the first firing piece is used for driving the ratchet teeth to move back and forth, and the ratchet teeth can push the driving piece to move forward in the tooth grooves to drive the firing mechanism to perform firing actions.
Further, the manual control unit further comprises a limiting piece, the driving piece can trigger the limiting piece to act when the triggering mechanism is driven to trigger in place, the limiting piece can enable the ratchet to be separated from the tooth socket so as to prevent the manual control unit from continuously controlling the driving piece to advance, and in the process of separating the ratchet from the tooth socket, the driving piece stops advancing.
Further, the manual control unit further comprises a retraction operation piece, and when the firing mechanism is in place, the retraction operation piece is operated to act so as to drive the driving piece to retract and further drive the firing mechanism to retract.
Preferably, the body has a hollow inner cavity, the driving member is movably mounted in the inner cavity, the driving member is in a strip shape, the first firing member is a manual pressing handle, the first firing member extends into the inner cavity from the lower part of the body and is pivotally connected in the inner cavity, the ratchet teeth are mounted on the upper part of the first firing member and below the driving member, the first firing member can rotate back and forth and drive the ratchet teeth to move back and forth, the first firing member has a firing initial position and a stopping position, and when the first firing member is in the firing initial position, the ratchet teeth are inserted into corresponding tooth grooves; when the first firing part rotates from the initial firing position to the stop position, the ratchet can move forwards under the drive of the first firing part and push the driving part to advance in the tooth slot of the driving part, so that the firing mechanism can be driven to perform firing action; when the first firing member rotates from the stop position to the firing initiation position, the ratchet is disengaged from the front tooth slot and inserted into the rear tooth slot, and the driving member stops advancing.
Further, the manual control unit further comprises a limiting piece, the limiting piece is slidably installed in the inner cavity, the limiting piece is provided with a protruding portion located below the driving piece, the driving piece is provided with a firing completion position, when the driving piece advances to the firing completion position, the driving piece can push the limiting piece to slide so that the protruding portion abuts against the ratchet, the ratchet can rotate downwards under the action of the elastic force of the elastic piece and is separated from the driving piece under the pressure of the protruding portion, and in the ratchet rotation process, the driving piece stops advancing.
Specifically, the back of ratchet has the portion of supporting that can offset the contact with first percussion piece, the ratchet is connected through first axle and first percussion piece rotation and can rotate around first axle back under the elastic force effect of elastic component until the portion of supporting is supported on first percussion piece.
Specifically, the electric driving mechanism comprises a driving motor with an output shaft, the output shaft is connected with a transmission mechanism, the electric control unit comprises a second firing part, a trigger switch, a firing travel switch and a motor control module capable of driving the motor to start and stop, forward rotate and reverse rotate, the trigger switch is provided with a closing position and an opening position, the second firing part is used for triggering the trigger switch to enable the trigger switch to be in the closing position, the firing travel switch is used for detecting whether the firing mechanism is in place or not, and the trigger switch and the firing travel switch are matched to send forward rotate and reverse rotate instructions to the motor control module.
Further, the second firing part is provided with a working position and a closing position, when the second firing part is in the working position, the electric control unit is opened, and the second firing part can act to send out an instruction to control the firing mechanism to perform firing and retreating actions; when the second firing member is in the closed position, the electronic control unit is closed.
The firing back control method of the electric anastomat is a control method with two working modes of an electric mode and a manual mode,
the control method comprises the following steps of:
1.1 Operating the second firing member to enable the second firing member to be in a closed position, and opening the first firing member to enable the first firing member to be in a firing initial position for preparation;
1.2 Operating the first firing member to enable the first firing member to rotate back and forth between a firing initial position and a stopping position, wherein the first firing member moves to drive the firing mechanism to perform firing action;
1.3 When the first firing part moves to enable the driving part to advance to the firing completion position, the driving part pushes the limiting part to slide to enable the protruding part to prop against the ratchet, the ratchet downwards rotates to be separated from the driving part under the pressure of the protruding part against the elastic force of the elastic part, the driving part stops advancing, and the firing mechanism stops firing action;
1.4 The manual control unit is operated to enable the driving piece to retreat, the driving piece retreats to drive the firing mechanism to retreat until the retreating is completed, and the electric anastomat completes one firing retreating action.
The control method comprises the following steps of:
2.1 Operating the first firing member to enable the first firing member to be in a stop position, and opening the second firing member to enable the second firing member to be in a working position for preparation;
2.2 The motor control module obtains a forward rotation instruction and controls the output shaft of the driving motor to forward rotate so as to drive the firing mechanism to perform firing action;
2.3 The firing mechanism triggers a firing travel switch in place, the firing travel switch sends a stopping instruction to a motor control module, and the motor control module controls an output shaft of a driving motor to stop rotating;
2.4 Releasing the second firing part to separate the second firing part from the trigger switch so as to enable the trigger switch to be in a disconnected position, wherein the motor control module obtains a reversing instruction and controls the output shaft of the driving motor to reverse so as to drive the firing mechanism to carry out a backspacing action;
2.5 The firing mechanism is retracted to be separated from the firing travel switch, the firing travel switch sends a stopping instruction to the motor control module, the motor control module controls the output shaft of the driving motor to stop rotating, and the electric stapler completes one firing retraction action.
The terms of the directions of the front, the back, the left, the right, the upper, the lower, the like are defined in the normal use direction of the electric anastomat, wherein the direction of approaching the tissue to be treated is the front, and the direction of separating from the tissue to be treated is the rear.
The scope of the present invention is not limited to the specific combination of the above technical features, but also covers other technical features formed by any combination of the above technical features or their equivalents. Such as those described above, and those disclosed in the present application (but not limited to) having similar functions, are replaced with each other.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: according to the invention, the electric stapler is provided with an electric mode through the electric control unit and the electric driving mechanism, the electric stapler can automatically complete the firing and backing action through electric driving so as to realize automatic cutting and suturing of tissues, the electric stapler is provided with a manual mode through the manual control unit and the manual driving mechanism, the electric stapler can complete the firing and backing action through manual driving so as to realize tissue cutting and suturing, and the electric mode and the manual mode can be freely switched. The electric stapler can automatically work in an electric mode, the using difficulty of an operator is reduced, the electric stapler is convenient to use, the electric stapler can be manually intervened to continuously fire and retract to realize tissue cutting and suturing in the case of insufficient power or instrument failure in the manual mode, the safety of operation is improved, and the operation risk of a patient is reduced. The invention has simple structure and low manufacturing cost.
Drawings
FIG. 1 is a schematic view of a three-dimensional structure of an electric stapler according to the present invention in a manual mode;
FIG. 2 is a schematic view of a three-dimensional structure (with part of the body hidden) of the electric stapler in an electric mode;
FIG. 3 is an enlarged schematic view of a portion of FIG. 2;
FIG. 4 is a front view (with part of the body hidden) of the electric stapler in the electric mode according to the present invention;
FIG. 5 is an enlarged schematic view of a portion of FIG. 4 at B;
FIG. 6 is a cross-sectional view of the electric stapler of the present invention in an electric mode;
FIG. 7 is an enlarged schematic view of a portion of FIG. 6 at C;
FIG. 8 is a schematic view of a manual mode of an electric stapler according to the present invention (with part of the stapler body hidden);
FIG. 9 is an enlarged schematic view of a portion of the portion of FIG. 8 at D;
FIG. 10 is a front view (with part of the body hidden) of the electric stapler in manual mode according to the present invention;
FIG. 11 is an enlarged partial schematic view of FIG. 10 at E;
FIG. 12 is a cross-sectional view of the electric stapler of the present invention in manual mode;
FIG. 13 is an enlarged schematic view of a portion of FIG. 12 at F;
wherein: 1. a driving member; 2. a first striking member; 3. a ratchet; 4. an elastic member; 5. a limiting piece; 6. a first shaft; 7. a second firing member; 8. triggering a switch; 9. firing travel switch; 11. tooth slots; 51. a boss; 100. a body; 101. a body; 200. a working head.
Detailed Description
As shown in fig. 1 to 13, an electric stapler according to the present invention includes a body 100 and a working head 200. The body 100 includes a body 101, a transmission mechanism, a driving mechanism, and a control unit. The working head 200 is mounted on the body 101. In this embodiment, the body 101 has a shape similar to a pistol, and has a hollow inner cavity, and the transmission mechanism and the driving mechanism are both disposed in the inner cavity. The working head 200 is mounted on the front of the body 101.
The working head 200 includes a firing mechanism (not shown) for cutting and stapling tissue. The firing mechanism completes the work of cutting and suturing tissues through firing and retreating actions. The firing mechanism is connected with the driving mechanism through a transmission mechanism. The driving mechanism comprises an electric driving mechanism and a manual driving mechanism which are respectively connected with the transmission mechanism. The control unit comprises an electric control unit connected with the electric driving mechanism and a manual control unit connected with the manual driving mechanism.
Specifically, the manual drive mechanism includes a drive member 1 connected to a transmission mechanism. The driving member 1 is movably disposed in the inner cavity of the body 101 and extends in the front-rear direction to form a long strip shape. The driving piece 1 can advance and retreat to drive the firing mechanism to perform firing and retreating actions. The bottom of the driving piece 1 is provided with a plurality of tooth grooves 11, and the tooth grooves 11 are linearly distributed along the extending direction of the driving piece 1. The manual control unit comprises a first firing member 2, a ratchet 3 and an elastic member 4. The first firing member 2 is a manual pressing handle, and the first firing member 2 extends into the inner cavity from the lower part of the body 101 and is pivotally connected in the inner cavity and is located below the driving member 1. The ratchet 3 is pivotally connected to the upper part of the first trigger 2 and below the driver 1 by a first shaft 6. The rear part of the ratchet 3 has an abutment 31 that can be brought into abutment with the first trigger 2. The elastic member 4 is installed between the first firing member 2 and the ratchet teeth 3, and the elastic member 4 can provide an elastic force to enable the ratchet teeth 3 to rotate backward around the first shaft 6 until the abutting portion 31 abuts against the first firing member 2, so that the ratchet teeth 3 can tilt on the upper portion of the first firing member 2 and be inserted into the tooth grooves 11 of the driving member 1.
The first trigger piece 2 is used for driving the ratchet 3 to move back and forth, and the first trigger piece 2 can rotate back and forth and drive the ratchet 3 to move back and forth. The first trigger 2 has a trigger initial position and a stop position, and when the first trigger 2 is in the trigger initial position, the ratchet teeth 3 are inserted into the corresponding tooth sockets 11; when the first firing part 2 rotates from the initial firing position to the stop position, the ratchet 3 can move forwards under the drive of the first firing part 2 and props against the tooth groove 11 of the driving part 1 to push the driving part 1 to advance, so that the firing mechanism can be driven to perform firing action; when the first firing member 2 rotates from the stop position to the firing initiation position, the ratchet teeth 3 are disengaged from the front tooth slots 11 and inserted into the rear tooth slots 11, and the driving member 1 stops advancing.
The hand control unit further comprises a stop 5. The limiting member 5 is slidably mounted in the inner cavity, the limiting member 5 having a protruding portion 51 located below the driving member 1. When the driving piece 1 advances to reach the firing completion position, the driving piece 1 can push the limiting piece 5 to slide so that the protruding part 51 props against the ratchet 3, the ratchet 3 can rotate downwards under the pressure of the protruding part 51 against the elastic force of the elastic piece 4 to be separated from the driving piece 1, further, the manual control unit is prevented from continuously controlling the driving piece 1 to advance, and the driving piece 1 stops advancing in the rotating process of the ratchet 3. Therefore, the driving piece 1 can be stopped from advancing after the firing mechanism is driven to complete the firing action, and the safety of the cut and the suture of tissues is ensured.
The manual control unit also comprises a backspacing operation piece (not shown), when the firing mechanism is fired in place, the driving piece 1 advances to reach the firing completion position, and the backspacing operation piece is operated to act so as to drive the driving piece 1 to backspin and further drive the firing mechanism to backspin. Thus, the manual retraction of the firing mechanism can be realized.
The electric drive mechanism includes a drive motor (not shown) having an output shaft that is coupled to a transmission mechanism. The electric control unit comprises a second firing part 7, a trigger switch 8, a firing travel switch 9 and a motor control module capable of driving the start and stop, forward rotation and reverse rotation of a motor. The trigger switch 8 has a closed position and an open position, and the second firing member 7 is configured to trigger the trigger switch 8 to place the trigger switch 8 in the closed position. The firing travel switch 9 is used for detecting whether the firing mechanism is fired in place, and the trigger switch 8 and the firing travel switch 9 are matched to send forward rotation and reverse rotation instructions to the motor control module.
The second firing member 7 has a working position and a closing position. When the second firing part 7 is in a working position, the electric control unit is opened, and the second firing part 7 can act to send out instructions to control the firing mechanism to perform firing and retreating actions; when the second firing member 7 is in the closed position, the electronic control unit is closed.
The electric stapler has an electric mode and a manual mode and the electric stapler is freely switchable between the electric mode and the manual mode. When the electric anastomat is switched to the electric mode, the second firing part 7 is in a working position, the electric control unit is opened, the first firing part 2 is in a stop position, and the manual control unit is closed. At this time, the control electric control unit controls the electric driving mechanism to work and generate driving force, and the driving force is transmitted to the firing mechanism through the transmission mechanism so that the firing mechanism completes firing and retreating actions.
When the electric anastomat is switched to a manual mode, the first firing part 2 is opened to a firing initial position, the manual control unit is opened, the second firing part 7 is in a closing position, and the electric control unit is closed. At the moment, the manual control unit is controlled to control the manual driving mechanism to work so as to generate driving force, and the driving force is transmitted to the firing mechanism through the transmission mechanism so that the firing mechanism finishes firing and retreating actions. Therefore, the electric anastomat can switch and select the electric mode and the manual mode according to the actual working condition. Under the condition of normal and sufficient power supply, the electric mode can be selected preferentially, the automatic firing and retreating action of the electric anastomat is realized, the cutting and the suturing of tissues are further realized, and the use of operators is facilitated. Under the condition of insufficient electric quantity or electric faults, the electric anastomat can be switched to a manual mode, the firing and retreating actions are completed in a manual mode, the tissues are ensured to be cut and sutured in time, the operation time is not delayed, the success rate of the operation is improved, the operation risk of a patient is also reduced, and the safety is improved.
Specifically, the firing retraction control method of the electric anastomat is adopted, and the control method is a control method with two working modes of an electric mode and a manual mode.
The control method comprises the following steps of:
1.1 Forward rotating the second firing member 7 to tilt the second firing member 7 forward in the closed position, and forward rotating the first firing member 2 to open the first firing member 2 to the initial firing position ready for operation;
1.2 When the first trigger piece 2 rotates from the trigger initial position to the stop position, the ratchet 3 can move forwards and props against the tooth socket 11 of the driving piece 1 to push the driving piece 1 to advance, so that the trigger mechanism can be driven to perform trigger action, when the first trigger piece 2 rotates from the stop position to the trigger initial position, the ratchet 3 is separated from the front tooth socket 11 and is inserted into the rear tooth socket 11, the driving piece 1 stops advancing, and the trigger mechanism is driven to perform trigger action by driving the first trigger piece 2 to rotate back and forth for a plurality of times;
1.3 When the first firing member 2 moves to enable the driving member 1 to advance to reach the firing completion position, the driving member 1 pushes the limiting member 5 to slide to enable the protruding portion 51 to abut against the ratchet teeth 3, the ratchet teeth 3 rotate downwards around the first shaft 6 to be separated from the driving member 1 under the pressure of the protruding portion 51 against the elastic force of the elastic member 4, the driving member 1 stops advancing, and the firing mechanism stops firing action;
1.4 The driving piece 1 is retracted by operating the retraction operation piece of the manual control unit, the driving piece 1 is retracted to drive the firing mechanism to retract until the retraction is completed, and the electric anastomat completes one firing retraction action.
The control method comprises the following steps of:
2.1 Driving the first trigger 2 to rotate the first trigger 2 to be in a stop position, driving the second trigger 7 to rotate to open the second trigger 7 to be in a working position for preparation, wherein a linkage mechanism is arranged between the first trigger 2 and the second trigger 7, and the second trigger 7 can be synchronously driven to rotate to be in a working position when the first trigger 2 is driven to rotate the first trigger 2 to be in the stop position;
2.2 The second firing part 7 is buckled to rotate backwards to trigger the trigger switch 8 to enable the trigger switch 8 to be in a closed position, and the motor control module obtains a forward rotation instruction and controls the output shaft of the driving motor to rotate forward so as to drive the firing mechanism to perform firing action;
2.3 The firing mechanism is triggered to trigger the firing travel switch 9 in place, the firing travel switch 9 sends a stopping instruction to the motor control module, and the motor control module controls the output shaft of the driving motor to stop rotating;
2.4 The motor control module obtains a reversing instruction and controls the output shaft of the driving motor to reverse and drive the firing mechanism to carry out a retreating action, in the embodiment, a restoring piece (not shown) for resetting the second firing piece 7 is arranged at the second firing piece 7, and the second firing piece 7 can be separated from the triggering switch 8 by loosening the second firing piece 7;
2.5 The firing mechanism is retracted to a proper position, the driving piece 1 is retracted to drive the limiting piece to retract and separate from the firing travel switch 9, the firing travel switch 9 sends a stopping instruction to the motor control module, the motor control module controls the output shaft of the driving motor to stop rotating, and the electric stapler completes one firing retraction action.
As described above, we have fully described the gist of the present invention, but the present invention is not limited to the above-described embodiments and implementation methods. A practitioner of the related art may make various changes and implementations within the scope of the technical idea of the present invention.
Claims (6)
1. An electric anastomat is characterized in that: the electric stapler comprises a body (100) and a working head (200), wherein the body (100) comprises a body (101), a transmission mechanism, a driving mechanism and a control unit, the working head (200) is installed on the body (101), the working head (200) comprises a firing mechanism, the firing mechanism is connected with the driving mechanism through the transmission mechanism, the driving mechanism comprises an electric driving mechanism and a manual driving mechanism which are respectively connected with the transmission mechanism, the control unit comprises an electric control unit connected with the electric driving mechanism and a manual control unit connected with the manual driving mechanism, the electric stapler is provided with an electric mode and a manual mode, when the electric stapler is in the electric mode, the electric control unit is opened and the manual control unit is closed, the electric control unit is controlled to electrify the electric driving mechanism to generate driving force, and the driving force is transmitted to the firing mechanism through the transmission mechanism so that the firing mechanism completes firing and retreating actions; when the electric anastomat is in a manual mode, the manual control unit is opened and the electric control unit is closed, the manual control unit is controlled to control the manual driving mechanism to work so as to generate driving force, and the driving force is transmitted to the firing mechanism through the transmission mechanism so that the firing mechanism finishes firing and retreating actions;
the manual driving mechanism comprises a driving piece (1) connected with a transmission mechanism, the driving piece (1) is movably arranged on the body (101) and extends along the front-rear direction, the driving piece (1) can advance and retreat to drive the triggering mechanism to conduct triggering and retreating actions, a plurality of tooth grooves (11) are formed in the bottom of the driving piece (1), the tooth grooves (11) are linearly distributed along the extending direction of the driving piece (1), the manual control unit comprises a first triggering piece (2), ratchet teeth (3) and an elastic piece (4), the first triggering piece (2) is pivotally connected to the body (101) and located below the driving piece (1), the ratchet teeth (3) are pivotally connected to the first triggering piece (2), the elastic piece (4) is arranged between the first triggering piece (2) and the ratchet teeth (3), the elastic piece (4) can provide elastic force to enable the ratchet teeth (3) to lift and be inserted into the tooth grooves (11) of the driving piece (1), and the first triggering piece (2) is used for pushing the triggering mechanism to move forward to the driving piece (3 to conduct triggering actions;
the device comprises a body (101) and a ratchet (3), wherein the body (101) is provided with a hollow inner cavity, a driving piece (1) is movably arranged in the inner cavity, the driving piece (1) is in a strip shape, a first firing piece (2) is a manual pressing handle, the first firing piece (2) stretches into the inner cavity from the lower part of the body (101) and is pivotally connected in the inner cavity, the ratchet (3) is arranged on the upper part of the first firing piece (2) and is positioned below the driving piece (1), the first firing piece (2) can rotate back and forth and drive the ratchet (3) to move back and forth, the first firing piece (2) is provided with a firing initial position and a stopping position, and when the first firing piece (2) is positioned at the firing initial position, the ratchet (3) is inserted into a corresponding tooth socket (11); when the first firing part (2) rotates from the initial firing position to the stop position, the ratchet (3) can move forwards under the drive of the first firing part (2) and push the driving part (1) to advance in the tooth slot (11) of the driving part (1), so that the firing mechanism can be driven to perform firing action; when the first firing member (2) rotates from the stop position to the initial firing position, the ratchet teeth (3) are separated from the front tooth grooves (11) and are inserted into the rear tooth grooves (11), and the driving member (1) stops advancing;
the manual control unit further comprises a limiting piece (5), the limiting piece (5) is slidably arranged in the inner cavity, the limiting piece (5) is provided with a protruding portion (51) located below the driving piece (1), the driving piece (1) is provided with a firing completion position, when the driving piece (1) advances to reach the firing completion position, the driving piece (1) can push the limiting piece (5) to slide so that the protruding portion (51) props against the ratchet (3), the ratchet (3) can downwards rotate under the pressure of the protruding portion (51) under the action of the elastic force of the elastic piece (4) to be separated from the driving piece (1), and in the rotation process of the ratchet (3), the driving piece (1) stops advancing.
2. The electric stapler of claim 1, wherein: the manual control unit also comprises a backspacing operation piece, when the firing mechanism is fired in place, the backspacing operation piece is operated to act so as to drive the driving piece (1) to backspin and further drive the firing mechanism to backspace.
3. The electric stapler of claim 1, wherein: the rear part of the ratchet (3) is provided with a supporting part (31) which can be in supporting contact with the first triggering piece (2), the ratchet (3) is rotationally connected with the first triggering piece (2) through the first shaft (6) and can rotate backwards around the first shaft (6) under the action of the elastic force of the elastic piece (4) until the supporting part (31) is supported on the first triggering piece (2).
4. An electric stapler according to claim 3, wherein: the electric driving mechanism comprises a driving motor with an output shaft, the output shaft is connected with a transmission mechanism, the electric control unit comprises a second firing part (7), a trigger switch (8), a firing travel switch (9) and a motor control module capable of driving the motor to start and stop, forward rotation and reverse rotation, the trigger switch (8) is provided with a closing position and an opening position, the second firing part (7) is used for triggering the switch (8) to enable the trigger switch (8) to be in the closing position, the firing travel switch (9) is used for detecting whether the firing mechanism is fired in place or not, and the trigger switch (8) and the firing travel switch (9) are matched to send forward rotation and reverse rotation instructions to the motor control module.
5. The electric stapler of claim 4, wherein: the second firing part (7) is provided with a working position and a closing position, when the second firing part (7) is in the working position, the electric control unit is opened, and the second firing part (7) can act to send out an instruction to control the firing mechanism to perform firing and retreating actions; when the second firing member (7) is in the closed position, the electronic control unit is closed.
6. The firing back control method of the electric stapler of claim 5, wherein: the control method is a control method with two working modes of an electric mode and a manual mode,
the control method comprises the following steps of:
1.1 Operating the second firing member (7) to enable the second firing member (7) to be in a closed position, and opening the first firing member (2) to enable the first firing member (2) to be in a firing initial position for preparation;
1.2 The first percussion piece (2) is operated to enable the first percussion piece (2) to rotate back and forth between a percussion initial position and a stop position, and the first percussion piece (2) is moved to drive a percussion mechanism to perform percussion action;
1.3 When the first firing member (2) moves to enable the driving member (1) to advance to a firing completion position, the driving member (1) pushes the limiting member (5) to slide to enable the protruding portion (51) to prop against the ratchet teeth (3), the ratchet teeth (3) rotate downwards under the pressure of the protruding portion (51) against the elastic force of the elastic member (4) to be separated from the driving member (1), the driving member (1) stops advancing, and the firing mechanism stops firing actions;
1.4 The manual control unit is operated to enable the driving piece (1) to retreat, the driving piece (1) retreats to drive the firing mechanism to retreat until the retreating is completed, the electric anastomat completes one firing retreating action,
the control method comprises the following steps of:
2.1 Operating the first firing member (2) to bring the first firing member (2) to a stop position, and opening the second firing member (7) to bring the second firing member (7) to a working position for preparation;
2.2 The second firing part (7) is buckled to act to trigger the trigger switch (8) to enable the trigger switch (8) to be in a closed position, and the motor control module obtains a forward rotation instruction and controls the output shaft of the driving motor to forward rotate so as to drive the firing mechanism to perform firing action;
2.3 The firing mechanism triggers a firing travel switch (9) in place, the firing travel switch (9) sends a stopping instruction to a motor control module, and the motor control module controls an output shaft of a driving motor to stop rotating;
2.4 Releasing the second firing part (7) to separate the second firing part (7) from the trigger switch (8) so as to enable the trigger switch (8) to be in a disconnected position, wherein the motor control module obtains a reversing instruction and controls the output shaft of the driving motor to reverse so as to drive the firing mechanism to carry out a retreating action;
2.5 The firing mechanism is retracted to be separated from the firing travel switch (9), the firing travel switch (9) sends a stopping instruction to the motor control module, the motor control module controls the output shaft of the driving motor to stop rotating, and the electric stapler completes one firing retraction action.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710110320.6A CN106821441B (en) | 2017-02-28 | 2017-02-28 | Electric anastomat and firing rollback control method thereof |
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| CN201710110320.6A CN106821441B (en) | 2017-02-28 | 2017-02-28 | Electric anastomat and firing rollback control method thereof |
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| CN106821441B true CN106821441B (en) | 2023-07-25 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10813639B2 (en) * | 2017-06-20 | 2020-10-27 | Ethicon Llc | Closed loop feedback control of motor velocity of a surgical stapling and cutting instrument based on system conditions |
| CN109199488B (en) * | 2017-07-03 | 2021-01-05 | 江苏风和医疗器材股份有限公司 | Surgical instrument |
| CN108210000B (en) * | 2017-12-22 | 2024-04-12 | 苏州英途康医疗科技有限公司 | Surgical instrument |
| CN108493060B (en) * | 2018-05-21 | 2023-09-22 | 常熟开关制造有限公司(原常熟开关厂） | Operating mechanism of switch |
| WO2021128088A1 (en) * | 2019-12-25 | 2021-07-01 | 北京博辉瑞进生物科技有限公司 | Intelligent driven surgical stapler |
| CN111248961B (en) * | 2020-01-17 | 2020-12-08 | 盈甲医疗器械制造（上海）有限公司 | Manual rotation and electric bending switching device and electric anastomat thereof |
| CN111248962B (en) * | 2020-01-17 | 2020-11-27 | 盈甲医疗器械制造（上海）有限公司 | Automatic returning device for electric anastomat and electric anastomat thereof |
| CN114098869A (en) * | 2020-08-28 | 2022-03-01 | 江苏风和医疗器材股份有限公司 | Surgical instrument |
| CN114098866B (en) * | 2020-08-28 | 2023-08-08 | 江苏风和医疗器材股份有限公司 | Surgical instrument |
| CN114617598B (en) * | 2020-12-11 | 2023-12-08 | 江苏风和医疗器材股份有限公司 | Electric anastomat and control method thereof |
| CN113951958B (en) * | 2021-12-02 | 2023-09-15 | 苏州法兰克曼医疗器械有限公司 | Power supply control device of electric anastomat and electric anastomat |
| WO2024000561A1 (en) * | 2022-07-01 | 2024-01-04 | Covidien Lp | Powered surgical device with switch to control automatic retraction |
| CN115644969B (en) * | 2022-11-21 | 2023-03-21 | 以诺康医疗科技（苏州）有限公司 | Stapler manually operable in a power mode failure condition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2563147C (en) * | 2005-10-14 | 2014-09-23 | Tyco Healthcare Group Lp | Surgical stapling device |
| US20090206133A1 (en) * | 2008-02-14 | 2009-08-20 | Ethicon Endo-Surgery, Inc. | Articulatable loading units for surgical stapling and cutting instruments |
| US8011551B2 (en) * | 2008-07-01 | 2011-09-06 | Tyco Healthcare Group Lp | Retraction mechanism with clutch-less drive for use with a surgical apparatus |
| CN104224254B (en) * | 2013-06-20 | 2016-03-30 | 瑞奇外科器械(中国)有限公司 | Surgical operating instrument and driving device thereof |
| CN105640602B (en) * | 2015-12-25 | 2018-01-12 | 山东威瑞外科医用制品有限公司 | Electronic intracavitary Endo-GIA with emergent tool retracting device |
| CN207075910U (en) * | 2017-02-28 | 2018-03-09 | 苏州法兰克曼医疗器械有限公司 | A kind of electronic stapler |
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