CN-122004971-A - Electric anastomat and length measurement method of nail bin assembly

CN122004971ACN 122004971 ACN122004971 ACN 122004971ACN-122004971-A

Abstract

The invention provides an electric anastomat and a length measuring method of a nail bin assembly. The electric anastomat comprises a push rod assembly, a nail bin assembly and a main control board, wherein the push rod assembly comprises a push rod, a driving rod and a firing rod, one end of the driving rod is provided with a signal emitter and a signal receiver, one end of the firing rod is connected with the driving rod and is contacted with the signal emitter and the signal receiver, the nail bin assembly is detachably connected with the push rod and the firing rod, and the main control board is close to the push rod and is integrated with a detection switch, a signal emitting unit, a signal receiving unit and a control unit. When the nail bin assembly is inserted into the push rod assembly, the push rod is pushed, the detection switch is triggered, the control unit activates the signal emitter and the signal receiver, the signal emitter emits signals towards one side of the nail bin assembly, and the signal receiver receives reflected signals returned from the tail end of the nail bin assembly. Therefore, the control unit can automatically calculate the length of the nail bin assembly according to the transmitting time of the signal and the receiving time of the reflected signal, and the intelligent level is improved.

Inventors

PU XIAODONG
JIA HONGTAO
XIA ZHENG
MA WUMING

Assignees

宝玛医疗科技(无锡)有限公司

Dates

Publication Date: 20260512
Application Date: 20260331

Claims (10)

1. An electric stapler, comprising: the push rod assembly comprises a push rod, a driving rod and a firing rod, wherein one end of the driving rod is provided with a signal emitter and a signal receiver, and one end of the firing rod is connected with the driving rod and is in contact with the signal emitter and the signal receiver; The nail bin assembly is detachably connected with the push rod and one end, far away from the driving rod, of the firing rod; the main control board is close to the push rod and is integrated with a detection switch, a signal transmitting unit electrically connected with the signal transmitter, a signal receiving unit electrically connected with the signal receiver and a control unit, wherein the control unit is electrically connected with the detection switch, the signal transmitting unit and the signal receiving unit respectively; When the nail bin assembly is inserted into the push rod assembly, the push rod is pushed by the nail bin assembly and moves towards one side of the detection switch, so that the detection switch is triggered, the control unit activates the signal emitter and the signal receiver, so that the signal emitter emits a signal towards one side of the nail bin assembly through the firing bar, and the signal receiver receives a reflected signal returned from the tail end of the nail bin assembly.
2. The electric stapler of claim 1, wherein the signal emitter is a TDR emitter and the signal emitted by the TDR emitter is an electrical signal.
3. The powered stapler of claim 1, wherein the signal emitter is an ultrasonic emitter and the signal emitted by the ultrasonic emitter is an acoustic signal.
4. The electric stapler of claim 1, further comprising a driving assembly in transmission connection with the driving rod, wherein the main control board is further integrated with a driving unit and a position detection unit, and the driving unit and the position detection unit are respectively and electrically connected with the driving assembly and the control unit so as to drive the driving rod to drive the firing rod to move.
5. The electric stapler according to claim 4, wherein the driving assembly includes a driving motor drivingly connected to the driving lever and an encoder electrically connected to the driving motor, the driving unit is connected between the driving motor and the control unit to control the driving motor to operate, and the position detecting unit is connected between the encoder and the control unit to transmit the number of pulses output from the encoder to the control unit.
6. The electric stapler according to claim 4, wherein the driving assembly comprises a driving motor in transmission connection with the driving rod, the driving motor is provided with a motor main body, an output shaft extending from the motor main body, a driving wheel fixed on the output shaft and a driven wheel meshed with the driving wheel, one side of the driving rod facing the driving motor is provided with teeth, and the teeth are in transmission fit with the driven wheel so as to drive the driving rod to move by the driven wheel after the driving motor is started.
7. A method for measuring the length of a nail cartridge assembly, applied to the electric stapler of any one of claims 1 to 6, comprising the following steps: S1, assembling a nail bin assembly to one end of a push rod assembly, pushing the push rod by the nail bin assembly and moving towards one side of a detection switch, triggering the detection switch and sending a starting signal to a control unit; s2, after receiving the starting signal, the control unit activates the signal transmitter and the signal receiver; S3, a signal emitter emits a signal towards one side of the nail bin assembly and feeds the emission time back to the control unit, and the signal emitted by the signal emitter propagates along the firing bar and the nail bin assembly and is reflected when reaching the tail end of the nail bin assembly; S4, a signal receiver receives a reflected signal returned from the tail end of the nail bin assembly and feeds back the receiving time to the control unit; S5, the control unit calculates the propagation distance of the signal according to the transmitting time and the receiving time, and then calculates the length h of the nail bin assembly according to a formula h= (propagation distance/2-firing bar length).
8. The method of claim 7 wherein in step S3, the signal from the signal transmitter propagates along the firing bar and when the end of the firing bar is reached, a portion of the signal is reflected and another portion of the signal continues along the cartridge assembly.
9. The method of measuring the length of a staple cartridge assembly of claim 8, wherein a step S3' is further present between step S3 and step S4, wherein a signal receiver receives a halfway signal returned from the end of the firing bar and feeds back the time of receipt to the control unit, and wherein the length of the firing bar is calculated by the control unit based on the time of transmission and the time of receipt.
10. The method of claim 8, wherein the firing bar and the cartridge assembly are formed from different materials.

Description

Electric anastomat and length measurement method of nail bin assembly Technical Field The invention relates to an electric anastomat and a length measurement method of a nail bin assembly, and belongs to the technical field of medical appliances. Background The electric anastomat is a medical instrument widely used in surgical operation, the titanium nails are utilized to separate or anastomose tissues, the working principle is similar to a stapler, two rows of mutually staggered staples are fired and implanted into the tissues for cross stitching, and compared with the traditional manual stitching, the electric anastomat is simple and convenient to operate, and the operation time is greatly shortened. To expand the application of the electric stapler, the cartridge assembly is typically configured to be detachably coupled to the firing bar to accommodate a wide variety of cartridge assemblies. Therefore, when the nail bin assembly is matched with the firing bar, the length of the nail bin assembly needs to be accurately identified, and the advancing distance of the firing bar is controlled according to the nail bin assemblies with different lengths, so that accurate positioning and limiting adjustment are realized. However, for length detection of the cartridge assembly, conventional approaches rely on mechanical switches or manual settings, lacking automatic identification and adjustment capabilities. In view of the foregoing, there is a need for an improvement in the existing electric staplers to solve the above-mentioned problems. Disclosure of Invention The invention aims to provide an electric anastomat which can automatically identify the length of a nail bin assembly. To achieve the above object, the present invention provides an electric stapler including: the push rod assembly comprises a push rod, a driving rod and a firing rod, wherein one end of the driving rod is provided with a signal emitter and a signal receiver, and one end of the firing rod is connected with the driving rod and is in contact with the signal emitter and the signal receiver; The nail bin assembly is detachably connected with the push rod and one end, far away from the driving rod, of the firing rod; the main control board is close to the push rod and is integrated with a detection switch, a signal transmitting unit electrically connected with the signal transmitter, a signal receiving unit electrically connected with the signal receiver and a control unit, wherein the control unit is electrically connected with the detection switch, the signal transmitting unit and the signal receiving unit respectively; When the nail bin assembly is inserted into the push rod assembly, the push rod is pushed by the nail bin assembly and moves towards one side of the detection switch, so that the detection switch is triggered, the control unit activates the signal emitter and the signal receiver, so that the signal emitter emits a signal towards one side of the nail bin assembly through the firing bar, and the signal receiver receives a reflected signal returned from the tail end of the nail bin assembly. Optionally, the signal transmitter is a TDR transmitter, and the signal sent by the TDR transmitter is an electrical signal. Optionally, the signal transmitter is an ultrasonic transmitter, and the signal sent by the ultrasonic transmitter is an acoustic signal. Optionally, the electric anastomat further comprises a driving assembly in transmission connection with the driving rod, a driving unit and a position detection unit are further integrated on the main control board, and the driving unit and the position detection unit are respectively and electrically connected with the driving assembly and the control unit so as to drive the driving rod to drive the firing rod to move. Optionally, the driving assembly comprises a driving motor in transmission connection with the driving rod and an encoder in electric connection with the driving motor, the driving unit is connected between the driving motor and the control unit to control the driving motor to operate, and the position detection unit is connected between the encoder and the control unit to transmit the pulse number output by the encoder to the control unit. Optionally, the drive assembly includes with the driving motor of actuating lever transmission connection, driving motor is equipped with the motor main part, from the output shaft that the motor main part stretches out, be fixed in the action wheel on the output shaft and with the driven wheel of action wheel meshing, the actuating lever orientation one side of driving motor is equipped with the tooth, the tooth with from driving wheel transmission cooperation, in order to after the actuating motor starts, by from the driving wheel drive actuating lever removal. The invention also aims to provide a method for measuring the length of the nail bin assembly, so as to realize automatic identification of the length of the nail bin as