CN111248962B - Automatic returning device for electric anastomat and electric anastomat thereof - Google Patents
Automatic returning device for electric anastomat and electric anastomat thereof Download PDFInfo
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- CN111248962B CN111248962B CN202010057947.1A CN202010057947A CN111248962B CN 111248962 B CN111248962 B CN 111248962B CN 202010057947 A CN202010057947 A CN 202010057947A CN 111248962 B CN111248962 B CN 111248962B
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- retraction
- automatic
- rack
- switch
- push button
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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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- 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
- A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
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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
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/00296—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means mounted on an endoscope
Abstract
The invention provides an automatic retraction device for an electric anastomat, which comprises a bracket and an operating handle, wherein the bracket is fixed in the operating handle, the automatic retraction device comprises a motor, a gear, a rack, an automatic retraction switch, a retraction elastic component and a retraction push button, the retraction elastic component is fixed between the bracket and the retraction push button, the rack is in contact with the retraction push button, the motor is connected with the rack through the gear, the retraction push button is in contact connection with the retraction elastic component, and the automatic retraction switch is fixed in the operating handle. The automatic retraction device can finish the automatic retraction of the instrument when the firing stroke is finished, and meanwhile, the control mode of the automatic retraction switch is reset by the retraction spring, so that the automatic retraction device is safe and reliable and is not influenced by factors such as incomplete retraction and the like.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an electric anastomat, and particularly relates to an automatic retraction device for the electric anastomat and the electric anastomat.
Background
The endoscope cutting anastomat is used for suturing, cutting and separating tissues and organs in an endoscope and open operation. At present, in the prior art, the stapler is triggered and retreated by a manual mode, and the aim of retreating the cutting knife is fulfilled by a mode of driving the rack to retreat by pulling the reset cap backwards.
In the process of pulling the reset cap backwards to drive the rack to retreat, the situation that the hand feeling of an operator is not good due to overlarge pulling force exists, and the reset cap is not easy to be used by the operator with small physique or less strength.
Therefore, an automatic retraction mode instead of manual retraction is yet to be provided.
Disclosure of Invention
The invention provides an automatic retraction device for an electric anastomat and the electric anastomat, and at least solves the technical problem that in the prior art, when a reset cap is pulled backwards to drive a rack to retract, the hand feeling of an operator is poor due to overlarge pulling force.
The invention provides an automatic retraction device for an electric anastomat, which comprises a bracket and an operating handle, wherein the bracket is fixed in the operating handle;
the automatic withdrawing device also comprises a circuit or an element with a self-locking and triggering device, the circuit or the element with the self-locking and triggering device is connected with a withdrawing control circuit of the motor after the automatic withdrawing switch is triggered, and the withdrawing control circuit is used for the automatic withdrawing of the electric anastomat.
Optionally, when the automatic retraction switch is triggered and then turned off, the retraction control circuit of the motor is still in an on state.
Optionally, the automatic retraction device further includes a retraction termination switch, the rack includes a rack groove, the retraction termination switch includes a retraction switch elastic piece, when the rack is retracted to the initial position of the electric stapler, the rack groove of the rack disconnects the retraction switch elastic piece, so that the reverse driving circuit of the motor is disconnected, and the electric stapler is returned to the initial position.
Optionally, the retraction elastic member is a retraction spring.
Optionally, a rack protrusion is disposed on the rack, a retraction push button boss is disposed on the retraction push button, and the rack protrusion on the rack contacts with the retraction push button boss on the retraction push button.
Optionally, when the rack reaches the end position of the firing stroke of the electric stapler under the driving of the motor, the rack pushes the retraction push button to compress the retraction elastic member, and the retraction push button triggers the automatic retraction switch.
Optionally, the automatic retraction switch is in contact with the retraction spring, the compressed retraction spring moves the retraction push button in a direction away from the automatic retraction switch, and the retraction push button is separated from the protrusion of the automatic retraction switch.
Optionally, the circuit or element with the self-locking and triggering device is a double-coil magnetic holding relay.
Optionally, the circuit or element with the self-locking and triggering device is a double-pole double-throw switch with the self-locking and triggering device.
The electric anastomat comprises any one of the automatic retraction devices.
Aiming at the defects in the prior art, the embodiment of the invention replaces manual retraction by an electric retraction mode, realizes the resetting of the instrument by an electric mode, and can save the operation time and reduce the fatigue strength of an operator in the operation.
The control mode of the automatic backspacing switch is reset by the backspacing spring, the control mode is safe and reliable and is not influenced by factors such as the incomplete backspacing end, the circuit switching function is started when the instrument is automatically reset, the state of the automatic backspacing switch is switched when the instrument is reset by applying the mode of the backspacing spring, the continuity and the reliability of the automatic backspacing function are ensured when the next firing stroke is finished, and meanwhile, the control circuit does not comprise an integrated circuit, so that the difficulty of the integrated circuit in disinfecting the instrument is avoided.
The automatic returning device can finish the automatic returning of the instrument when the firing stroke is finished, meanwhile, the automatic returning device is reset by the returning spring and is not influenced by factors such as the incomplete returning completion and the like, the state of the automatic returning switch is switched when the instrument is reset by applying the returning spring resetting mode, and the continuity and the reliability of the automatic returning function when the next firing stroke is finished are ensured. Meanwhile, the control circuit does not comprise an integrated circuit, so that the difficulty of the integrated circuit in instrument disinfection is avoided.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the invention are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:
FIG. 1 is a schematic diagram of an alternative electric stapler according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an alternative electric stapler including an automatic retraction device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an alternative automatic retraction device in an initial state according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of an alternative automatic retraction device at the end of the firing stroke provided by an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an optional automatic retraction switch triggered by a retraction push button according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an alternative automatic retraction device according to an embodiment of the present invention, in which a switch spring and a rack are in an initial state;
FIG. 7 is a schematic circuit diagram illustrating an initial state of an alternative automatic retraction device during a firing process according to an embodiment of the present invention;
FIG. 8 is a schematic circuit diagram of an alternative automatic retraction device for the forward firing of a work implement with motor M1 upon activation of a firing switch SW1 in accordance with an embodiment of the present invention;
fig. 9 is a schematic circuit diagram illustrating that when the automatic retraction switch SW2 is triggered, the motor M1 stops working in the alternative automatic retraction device according to the embodiment of the present invention;
FIG. 10 is a schematic diagram of an alternative automatic retraction device in accordance with the present invention showing the circuit for reversing the operation of the motor M1 when the trigger switch SW1 is deactivated and the retraction stop switch SW3 is activated;
fig. 11 is a schematic circuit diagram of an alternative automatic retraction device according to an embodiment of the present invention, in which the retraction termination switch SW3 is no longer triggered and the motor M1 stops operating.
Reference numerals:
1, an operating handle 2, an elongated body 3, an end effector
4, gear 5, rack 51, rack projection
52 rack groove 6, automatic back-off switch 7, back-off spring
8, a backspacing push button 81, a backspacing push button boss 9 and a backspacing switch elastic sheet
10, a bracket M1, a motor SW1 and a firing switch
SW2, automatic retraction switch SW3, retraction end switch SW2-1 automatic retraction switch
Projection K1, double coil magnetic holding relay
Detailed Description
The principles and spirit of the present invention will be described with reference to a number of exemplary embodiments. It is understood that these embodiments are given solely for the purpose of enabling those skilled in the art to better understand and to practice the invention, and are not intended to limit the scope of the invention in any way. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Summary of The Invention
Technical problem 1: the rack of the transmission part in the prior art is matched with the backspacing push button through the end surface of the chute, so that the automatic backspacing of the instrument is realized, and the problem that the instrument stroke is too much or too little when the control stroke is not accurate exists in the matching mode, and the problem that the jaw of the instrument cannot be opened possibly exists. Aiming at the technical problem 1, the technical scheme of the invention is characterized in that: a retraction elastic member (retraction spring) which is different from the rack gear and the retraction button in cooperation, the retraction spring is fixed between the bracket 10 and the retraction button 8, the convex feature 51 on the rack gear 5 is in contact with the boss 81 of the retraction button 8, and the double coil magnetic holding type relay K1 may turn on the motor retraction control circuit after the automatic retraction switch SW2 is activated and continue to hold when SW2 is turned off.
Technical problem 2: at the end of instrument retraction, there is a risk of false firing again without reloading the staple cartridge. Aiming at the technical problem 2, the technical scheme of the invention is characterized in that: a circuit or component with a self-lock and trigger device may turn on the motor retract control circuit after the automatic retract switch SW2 is triggered and continue to hold when SW2 is off, retract terminate switch SW 3.
Exemplary devices
The following examples are shown in figures 1 to 11.
As shown in fig. 1, 2, 3 and 4, the present embodiment provides an electric stapler having an automatic retracting device, which has an operating handle 1, an elongated body 2, an end effector 3, a gear 4, a rack 5, a rack protrusion 51, a rack recess 52, an automatic retracting switch 6, a retracting spring 7, a retracting push button 8, a retracting push button boss 81, a retracting switch dome 9, a motor M1, a trigger switch SW1, an automatic retracting switch SW2 and a retracting end switch SW 3.
As shown in fig. 3 and 4, an embodiment of the present invention provides an automatic retraction device for an electric stapler, the electric stapler includes a bracket 10 and an operating handle 1, the bracket 10 is fixed in the operating handle 1, the automatic retraction device includes a motor M1, a gear 4, a rack 5, an automatic retraction switch SW2, a retraction elastic member 7, and a retraction push button 8, the retraction elastic member 7 is fixed between the bracket 10 and the retraction push button 8, the rack 5 is in contact with the retraction push button 8, the motor M1 is connected to the rack 5 through the gear 4, the retraction push button 8 is in contact with the retraction elastic member 7, and the automatic retraction switch SW2 is fixed on a circuit board of the operating handle 1;
the automatic withdrawing device further includes a circuit or element having a self-locking and triggering device, which turns on a withdrawing control circuit of the motor M1 after the automatic withdrawing switch SW2 is triggered, the withdrawing control circuit being used for automatic withdrawing of the electric stapler.
Further, when the automatic retraction switch SW2 is turned off after being triggered, the retraction control circuit of the motor M1 is still in an on state.
Further, as shown in fig. 6, the automatic retracting device further includes a retraction end switch SW3, the rack 5 includes a rack groove 52, the retraction end switch SW3 includes a retraction switch elastic piece 9, when the rack 5 is retracted to the initial position of the electric stapler, the rack groove 52 of the rack 5 disconnects the retraction switch elastic piece 9, so that the reverse driving circuit of the motor M1 is disconnected, and the electric stapler is returned to the initial position, which is shown in fig. 7.
Further, the retraction elastic member 7 is a retraction spring 7.
Further, as shown in fig. 5, a rack protrusion 51 is provided on the rack 5, a retraction button boss 81 is provided on the retraction button 8, and the rack protrusion 51 on the rack 5 contacts the retraction button boss 81 on the retraction button 8.
Further, as shown in fig. 4, when the rack 5 reaches the firing stroke end position of the electric stapler by the driving of the motor M1, the rack 5 pushes the retraction button 8 to compress the retraction elastic member 7, and the retraction button 8 triggers the automatic retraction switch SW 2.
Further, as shown in fig. 3, the automatic retraction switch SW2 is in contact with the retraction spring 7, and the compressed retraction spring 7 moves the retraction button 8 in a direction away from the automatic retraction switch SW2, so that the retraction button 8 is separated from the automatic retraction switch protrusion SW 2-1.
Furthermore, the circuit or element K1 with the self-locking and triggering device is a double-coil magnetic-holding relay K1; or the circuit or the element K1 with the self-locking and triggering device is a double-pole double-throw switch with the self-locking and triggering device.
The electric anastomat comprises any one of the automatic retraction devices.
The specific connection relation is as follows: the gear 4 is integrally formed with a gear box of the motor M1, and the gear 4 and the rack 5 are engaged by rack-and-pinion transmission.
As shown in fig. 3, the automatic retraction device includes the motor M1, the gear 4, the rack 5, the automatic retraction switch SW2, the retraction spring 7, and the retraction button 8. Wherein the motor M1 is connected to the rack 5 through the gear 4, and the rack 5 is connected to the cutting and suturing part of the end effector. During the process of firing and retracting the instrument, the motor M1 drives the rack 5 to move forwards and backwards to drive the cutting and suturing part of the end effector to move forwards and backwards, so as to complete the cutting and suturing of the instrument.
As shown in fig. 4, when the rack 5 reaches the end position of the firing stroke by the motor M1, the rack protrusion 51 of the rack 5 contacts the retraction button protrusion 81 of the retraction button 8, so that the retraction button 8 moves forward to contact with the contact of the automatic retraction switch SW2, and the retraction button 8 compresses the retraction spring 7 during the forward movement. When the automatic retraction switch SW2 is activated, the motor M1 rotates in the reverse direction to move the rack 5 rearward to retract the cutting and stapling portion of the end effector until the instrument is returned to its position. Meanwhile, when the rack 5 moves backwards, the automatic retraction switch SW2 moves backwards under the action of the compressed retraction spring 7 to disconnect the contact of the automatic retraction switch SW2, so that the contact of the automatic retraction switch SW2 is triggered again at the end of the next firing stroke, and the instrument reciprocates.
When the rack 5 is retracted to the original position of the instrument, the groove 52 of the rack 5 shown in fig. 3 and 6 lowers the spring piece of the retraction end switch SW3, thereby turning off the retraction end switch SW3, stopping the rotation of the motor M1, and returning the instrument to the original position.
The forward driving circuit is used for enabling current to flow in from the lower part of the motor in the circuit diagram and flow out from the upper part of the motor; the reverse drive circuit is opposite, namely, the current flows in from the upper part of the motor in the circuit diagram and flows out from the lower part of the motor. The forward firing of the motor M1 is in accordance with the principles of the forward drive circuit, and the reverse firing of the motor M1 is in accordance with the principles of the reverse drive circuit.
As shown in fig. 7, in the initial state of the electric stapler, the trigger switch SW1, the automatic retraction switch SW2, the retraction end switch SW3 and the double coil magnetic holding relay K1 are all in an unfired state, the pin K1-1 of the trigger switch SW1 is connected to the pin K1-3, the contact SW1-1 is disconnected from the contact SW1-2, pin K1-1 of the double-coil magnetic-holding relay K1 is directly connected to the positive pole of the power supply, pin K1-10 is connected in series with the automatic back-off switch SW2 to the negative pole of the power supply, since the automatic retraction switch SW2 is in an off state of being not triggered, no voltage is applied across the operating coil connected to the pin K1-1 and the pin K1-10, and the state of the dual coil magnetic retaining relay K1 is stabilized at an initial state: that is, the pin K1-3 and the pin K1-2, the pin K1-8 and the pin K1-9 are in an on state, respectively, and the pin K1-3 and the pin K1-4, and the pin K1-8 and the pin K1-7 are in an off state, respectively; an upper terminal of the motor M1 is connected to a negative electrode of a power supply through the pin K1-3 and the pin K1-2, a lower terminal of the motor M1 is connected to the contact SW1-2 through the pin K1-8 and the pin K1-9, and the contact SW1-1 is disconnected from the contact SW1-2, so that no voltage is applied to both ends of the motor M1, and the motor M1 does not operate; the pin K1-5 and the pin K1-6 are two ends of the reset coil of the relay.
As shown in fig. 8, in the initial state of the electric stapler, the trigger switch SW1 is triggered, the contact SW1-1 is disconnected from the contact SW1-3, then the contact SW1-1 is connected to the contact SW2-2, and as shown in fig. 8, the lower terminal of the motor M1 is connected to the contact SW1-2 through the pin K1-8 and the pin K1-9, and since the contact SW1-1 is connected to the contact SW2-2, the lower terminal of the motor M1 is connected to the positive pole of the power supply; in addition, since the upper terminal of the motor M1 is connected to the negative terminal of the power supply through the pin K1-3 and the pin K1-2, a voltage is applied to both ends of the motor M1, and the motor starts to be driven in the forward direction.
As shown in fig. 9, in the forward driving state shown in fig. 8, the automatic retraction switch SW2 is triggered, the pin K1-10 is connected to the negative electrode of the power supply through the automatic retraction switch SW2, a voltage is applied across the operating coil of the dual-coil magnetic latching relay K1, the state of the dual-coil magnetic latching relay K1 is switched, the pin K1-3 and the pin K1-2, the pin K1-8 and the pin K1-9 are switched to the off state, and the pin K1-3 and the pin K1-4, the pin K1-8 and the pin K1-7 are switched to the on state; since the pin K1-3 is disconnected from the pin K1-2 and the pin K1-8 is disconnected from the pin K1-9, the power supply to both ends of the motor M1 is cut off, and the motor M1 is stopped.
As shown in fig. 10, in the state shown in fig. 9, the trigger switch SW1 is not triggered, the contact SW1-1 is disconnected from the contact SW1-2, and the contact SW1-1 is connected to the contact SW 1-3; the automatic retraction switch SW2 is not triggered any more, the pin K1-10 is disconnected from the negative electrode of the power supply, the power supply at both ends of the operating coil is disconnected, the dual-coil magnetic latching relay K1 needs to be reset when the reset coil is energized, the reset coil is not energized in this state, the state of the dual-coil magnetic latching relay K1 does not change, the dual-coil magnetic latching relay K1 keeps the pin K1-3 and the pin K1-2, the pin K1-8 and the pin K1-9 in the off state, and the pin K1-3 and the pin K1-4, the pin K1-8 and the pin K1-7 in the on state, respectively; the reverse termination switch SW3 is activated, the lower terminal of the motor M1 is connected to the negative electrode of the power supply through the pin K1-8, the pin K1-7 and the reverse termination switch SW3, the upper terminal of the motor M1 is connected to the contact SW-3 through the pin K1-3 and the pin K1-4, the contact SW1-1 is connected to the contact SW1-3 and is connected to the positive electrode of the power supply, so that a voltage is applied to both ends of the motor M1, and the motor M1 is driven in the reverse direction.
As shown in fig. 11, in the reverse driving state, the retraction termination switch SW3 is not triggered, the motor M1 is de-energized, and the motor M1 is stopped, as shown in fig. 11.
Exemplary method
The specific working principle is as follows:
the automatic retraction device comprises a motor, a gear assembly, a rack, an automatic retraction switch, a retraction spring and a retraction push button, wherein the retraction spring is newly added, and the rack and the retraction push button are matched differently.
Wherein the motor is coupled to a rack via a gear assembly, the rack being coupled to the cutting and stapling portion of the end effector. During the process of firing and retracting the instrument, the motor drives the rack to move forwards and backwards to drive the cutting and suturing part of the end effector to move forwards and backwards, so that the cutting and suturing of the instrument are completed.
When the rack moves forwards under the driving of the motor to reach the end position of the firing stroke, the rack pushes the retraction push button to enable the retraction push button to move forwards to be contacted with a contact of the automatic retraction switch, meanwhile, the retraction push button presses the retraction spring in the forward movement process, the automatic retraction switch is triggered, at the moment, the motor rotates reversely to enable the rack to move backwards, and the cutting and suturing part of the end effector of the instrument is pulled back until the instrument returns to the position. When the rack moves backwards, the backward movement of the backward pushing button is disconnected with the contact of the automatic backward switch (the matching of the rack and the backward pushing button is different) under the action of the compressed backward spring, so that the instrument can perform repeated linear movement, (the automatic backward switch is a magnetic holding switch, namely, when the backward pushing button is disconnected with the contact of the automatic backward switch, the reverse direction of the motor can be still supplied with power.)
When the rack is retreated to the original position of the instrument, the groove 52 of the rack 5 enables the elastic sheet of the retreat ending switch SW3 to descend, so that SW3 is disconnected, the motor M1 stops rotating, and the instrument returns to the original position.
When the triggering stroke is finished, the groove features on the rack are contacted with the boss of the retraction push button, so that the retraction push button moves forwards to be contacted with the contact of the automatic retraction switch.
The most preferable technical scheme is as follows:
the automatic retraction device comprises a motor, a gear assembly, a rack, an automatic retraction switch, a retraction spring and a retraction push button. Wherein the motor is coupled to a rack via a gear assembly, the rack being coupled to the cutting and stapling portion of the end effector. During the process of firing and retracting the instrument, the motor drives the rack to move forwards and backwards to drive the cutting and suturing part of the end effector to move forwards and backwards, so that the cutting and suturing of the instrument are completed.
When the rack reaches the end of the firing stroke under the drive of the motor, the groove feature on the rack contacts with the boss of the retraction push button, so that the retraction push button moves forward to contact with the contact of the automatic retraction switch SW2, and the retraction push button compresses the retraction spring during the forward movement. The automatic retraction switch SW2 is activated and the motor reverses direction to move the rack rearward to retract the cutting and stapling portion of the end effector until the instrument is returned to its position. Meanwhile, when the rack moves backwards, the automatic retraction switch SW2 moves backwards under the action of the compressed retraction spring to be disconnected with the contact of the automatic retraction switch SW2, so that the contact of the automatic retraction switch SW2 is triggered again when the next firing stroke is finished, and the instrument reciprocates.
When the rack is retreated to the original position of the instrument, the groove 52 of the rack 5 enables the elastic sheet of the retreat ending switch SW3 to descend, so that SW3 is disconnected, the motor M1 stops rotating, and the instrument returns to the original position.
It should be noted that although in the above detailed description several units/modules or sub-units/modules of the apparatus are mentioned, such a division is merely exemplary and not mandatory. Indeed, the features and functionality of two or more of the units/modules described above may be embodied in one unit/module according to embodiments of the invention. Conversely, the features and functions of one unit/module described above may be further divided into embodiments by a plurality of units/modules.
Moreover, while the operations of the method of the invention are depicted in the drawings in a particular order, this does not require or imply that the operations must be performed in this particular order, or that all of the illustrated operations must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions.
While the spirit and principles of the invention have been described with reference to several particular embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, nor is the division of aspects, which is for convenience only as the features in such aspects may not be combined to benefit. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (8)
1. An automatic retraction device for an electric anastomat, the electric anastomat comprises a bracket (10) and an operating handle (1), the bracket (10) is fixed in the operating handle (1), characterized in that the automatic retraction device comprises a motor (M1), a gear (4), a rack (5), an automatic retraction switch (SW2), a retraction elastic component (7) and a retraction push button (8), the retraction elastic component (7) is fixed between the bracket (10) and the retraction push button (8), the rack (5) is contacted with the back-moving push button (8), the motor (M1) is connected with the rack (5) through the gear (4), the retraction push button (8) is in contact connection with the retraction elastic component (7), the automatic retraction switch (SW2) is fixed in the operation handle (1);
the automatic retraction device further comprises a circuit or element with self-locking and triggering device which switches on the retraction control circuit of the motor (M1) after the automatic retraction switch (SW2) is triggered, the retraction control circuit is used for the automatic retraction of the electric stapler;
when the automatic reverse switch (SW2) is turned off after being triggered, the reverse control circuit of the motor (M1) is still in an on state;
the automatic retraction device further comprises a retraction end switch (SW3), the rack (5) comprises a rack groove (52), the retraction end switch (SW3) comprises a retraction switch elastic sheet (9), when the rack (5) is retracted to the initial position of the electric stapler, the rack groove (52) of the rack (5) disconnects the retraction switch elastic sheet (9), the reverse driving circuit of the motor (M1) is disconnected, and the electric stapler is returned to the initial position.
2. The automatic retraction device for electric stapler according to claim 1, characterized in that the retraction elastic member (7) is a retraction spring (7).
3. The automatic retraction device for electric stapler according to claim 1, wherein the rack (5) is provided with a rack protrusion (51), the retraction push button (8) is provided with a retraction push button boss (81), and the rack protrusion (51) on the rack (5) contacts with the retraction push button boss (81) on the retraction push button (8).
4. The automatic retraction device for electric stapler according to claim 1, characterized in that when the rack (5) reaches the firing stroke end position of the electric stapler under the driving of the motor (M1), the rack (5) pushes the retraction push button (8) to compress the retraction elastic member (7), the retraction push button (8) triggers the automatic retraction switch (SW 2).
5. The automatic retracting device for a power stapler according to claim 2, wherein the automatic retracting switch (SW2) is in contact connection with the retracting spring (7), the retracting spring (7) being compressed to move the retracting button (8) away from the automatic retracting switch (SW2), the retracting button (8) being separated from the protrusion (SW2-1) of the automatic retracting switch.
6. Automatic retraction device for electric stapler according to claim 1, characterized by the fact that said circuit or element with self-locking and triggering device is a double coil magnetic retention type relay (K1).
7. The automatic retraction device for electric stapler according to claim 1, characterized in that said circuit or element with self-locking and triggering device is a double pole double throw switch with self-locking and triggering device.
8. Electric stapler characterized in that it comprises an automatic retraction device for electric stapler according to any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010057947.1A CN111248962B (en) | 2020-01-17 | 2020-01-17 | Automatic returning device for electric anastomat and electric anastomat thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010057947.1A CN111248962B (en) | 2020-01-17 | 2020-01-17 | Automatic returning device for electric anastomat and electric anastomat thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111248962A CN111248962A (en) | 2020-06-09 |
| CN111248962B true CN111248962B (en) | 2020-11-27 |
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Family Applications (1)
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| CN202010057947.1A Active CN111248962B (en) | 2020-01-17 | 2020-01-17 | Automatic returning device for electric anastomat and electric anastomat thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112137668B (en) * | 2020-10-14 | 2021-04-16 | 武汉智瓴医疗科技有限公司 | Control circuit of electric anastomat for preventing secondary use of detachable anastomosis assembly |
| 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 |
| CN113576650A (en) * | 2021-07-26 | 2021-11-02 | 李汉忠 | Plasma resectoscope driven by motor |
| CN114098872A (en) * | 2021-11-30 | 2022-03-01 | 南京迈迪欣医疗器械有限公司 | Electric anastomat control system |
| CN116999109A (en) * | 2022-04-29 | 2023-11-07 | 江苏风和医疗器材股份有限公司 | Surgical instrument |
| WO2024000561A1 (en) * | 2022-07-01 | 2024-01-04 | Covidien Lp | Powered surgical device with switch to control automatic retraction |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5937951A (en) * | 1997-07-18 | 1999-08-17 | Ethicon Endo-Surgery, Inc. | Skin stapler with rack and pinion staple feed mechanism |
| CN102176869A (en) * | 2008-10-10 | 2011-09-07 | 伊西康内外科公司 | Powered surgical cutting and stapling apparatus with manually retractable firing system |
| WO2012015795A1 (en) * | 2010-07-29 | 2012-02-02 | Ethicon Endo-Surgery, Inc. | Motor driven surgical fastener device with mechanisms for adjusting a tissue gap within the end effector |
| CN103381100A (en) * | 2013-07-16 | 2013-11-06 | 施志文 | Electric linear type cutter stapler |
| EP2764838A2 (en) * | 2013-02-08 | 2014-08-13 | Ethicon Endo-Surgery, Inc. | Tissue thickness compensation layer comprising deployable attachment members for the anvil of a surgical stapler |
| CN106580378A (en) * | 2017-01-17 | 2017-04-26 | 北京派尔特医疗科技股份有限公司 | Drive control system for endoscope stapler |
| CN106821441A (en) * | 2017-02-28 | 2017-06-13 | 苏州法兰克曼医疗器械有限公司 | A kind of electronic stapler and its percussion backoff control method |
| CN107684443A (en) * | 2016-08-04 | 2018-02-13 | 柯惠Lp公司 | The variable-ratio control of powered surgical device |
| CN207532414U (en) * | 2017-05-26 | 2018-06-26 | 重庆尚业医疗器械有限公司 | A kind of visual looping and binding device |
| EP3338675A2 (en) * | 2016-12-21 | 2018-06-27 | Ethicon LLC | Articulation lock arrangements for locking an end effector in an articulated position in response to actuation of a jaw closure system |
| CN110448348A (en) * | 2018-05-08 | 2019-11-15 | 常州安康医疗器械有限公司 | It is a kind of for minimally invasive hysteroscope Endo-GIA percussion after restore initial position device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9301755B2 (en) * | 2010-09-30 | 2016-04-05 | Ethicon Endo-Surgery, Llc | Compressible staple cartridge assembly |
| US10441272B2 (en) * | 2017-06-29 | 2019-10-15 | Medos International Sarl | Suture magazine for suture passing surgical device |
-
2020
- 2020-01-17 CN CN202010057947.1A patent/CN111248962B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5937951A (en) * | 1997-07-18 | 1999-08-17 | Ethicon Endo-Surgery, Inc. | Skin stapler with rack and pinion staple feed mechanism |
| CN102176869A (en) * | 2008-10-10 | 2011-09-07 | 伊西康内外科公司 | Powered surgical cutting and stapling apparatus with manually retractable firing system |
| WO2012015795A1 (en) * | 2010-07-29 | 2012-02-02 | Ethicon Endo-Surgery, Inc. | Motor driven surgical fastener device with mechanisms for adjusting a tissue gap within the end effector |
| EP2764838A2 (en) * | 2013-02-08 | 2014-08-13 | Ethicon Endo-Surgery, Inc. | Tissue thickness compensation layer comprising deployable attachment members for the anvil of a surgical stapler |
| CN103381100A (en) * | 2013-07-16 | 2013-11-06 | 施志文 | Electric linear type cutter stapler |
| CN107684443A (en) * | 2016-08-04 | 2018-02-13 | 柯惠Lp公司 | The variable-ratio control of powered surgical device |
| EP3338675A2 (en) * | 2016-12-21 | 2018-06-27 | Ethicon LLC | Articulation lock arrangements for locking an end effector in an articulated position in response to actuation of a jaw closure system |
| CN106580378A (en) * | 2017-01-17 | 2017-04-26 | 北京派尔特医疗科技股份有限公司 | Drive control system for endoscope stapler |
| CN106821441A (en) * | 2017-02-28 | 2017-06-13 | 苏州法兰克曼医疗器械有限公司 | A kind of electronic stapler and its percussion backoff control method |
| CN207532414U (en) * | 2017-05-26 | 2018-06-26 | 重庆尚业医疗器械有限公司 | A kind of visual looping and binding device |
| CN110448348A (en) * | 2018-05-08 | 2019-11-15 | 常州安康医疗器械有限公司 | It is a kind of for minimally invasive hysteroscope Endo-GIA percussion after restore initial position device |
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