CN216673342U

CN216673342U - Indicating circuit for bipolar coagulation forceps and bipolar coagulation forceps

Info

Publication number: CN216673342U
Application number: CN202122780856.3U
Authority: CN
Inventors: 马淑香; 王佟; 师启众
Original assignee: Henan Elikunsi Medical Technology Co ltd
Current assignee: Changzhou Chunxi Photoelectric Technology Co ltd; Henan Elikunsi Medical Technology Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-06-03
Anticipated expiration: 2031-11-15

Abstract

The utility model relates to an indicating circuit for a bipolar coagulation forceps and the bipolar coagulation forceps, wherein the indicating circuit comprises a current sensor, the output end of the current sensor is connected with a current collecting circuit, the current collecting circuit is connected with an MCU (microprogrammed control unit) chip, the MCU chip is connected with a driving unit, and the driving unit is connected with a warning unit; the current sensor comprises a current transformer, and the positive and negative ends of the current transformer are connected with an ADC port of the MCU chip through a current acquisition circuit and are connected with a power supply through the current acquisition circuit to form a loop; the driving unit comprises a triode driving circuit, the base electrode of the triode driving circuit is connected with the IO port of the MCU chip, the emitting electrode of the MCU chip is grounded, and the collecting electrode of the triode driving circuit is connected with the warning unit. The electric coagulation hemostatic forceps are provided with the indicating circuit, after the electric coagulation forceps clamp wound surface tissues and are electrified, the indicating circuit continuously operates and gives an alarm when the electric coagulation is completed, so that medical personnel can complete the electric coagulation hemostatic operation according to prompts, and the electric coagulation duration is ensured to be optimal.

Description

Indicating circuit for bipolar coagulation forceps and bipolar coagulation forceps

Technical Field

The utility model belongs to the field of medical instruments, and particularly relates to an indicating circuit for a bipolar coagulation forceps and the bipolar coagulation forceps.

Background

The high-frequency bipolar electric coagulation forceps are used for endoscopic surgery; compared with the endoscopic surgery using an ultrasonic knife, the high-frequency bipolar coagulation forceps can provide a more stable coagulation hemostasis effect in the endoscopic surgery, avoid the damage of nerve tissues around the wound surface, reduce or even avoid the use of vascular clamps, and further reduce the cost burden of patients.

The existing high-frequency bipolar coagulation forceps such as the endoscopic cuttable bipolar coagulation forceps disclosed as CN112754649A and the endoscopic cuttable and bendable bipolar coagulation forceps disclosed as CN112754648A in the application of the company adopt an electrocoagulation mode to finish the hemostasis operation of endoscopic surgery, medical workers use two poles of the electrocoagulation forceps to clamp a wound surface to finish electrocoagulation hemostasis during operation, and due to the fact that the sizes and the positions of the wound surfaces of patients are different, the medical workers control electrocoagulation time completely according to experience during operation, and the electrocoagulation hemostasis time cannot be in the optimal time, so that the coagulation effect is not ideal.

Disclosure of Invention

The utility model aims to solve the problems and provides an indicating circuit for a bipolar electrocoagulation clamp and the bipolar electrocoagulation clamp, wherein the indicating circuit is arranged, after the electrocoagulation clamp clamps wound surface tissues and is electrified, the indicating circuit continuously operates and gives an alarm when electrocoagulation is finished, so that medical personnel can finish electrocoagulation hemostasis operation according to prompts, and the electrocoagulation duration is ensured to be optimal.

In order to achieve the purpose, the utility model provides an indicating circuit for a bipolar electrocoagulation clamp in a first aspect, which comprises a power supply and a current sensor, wherein the output end of the current sensor is connected with a current collecting circuit, the current collecting circuit is connected with an MCU chip, the MCU chip is connected with a driving unit, and the driving unit is connected with a warning unit;

the current sensor comprises a current transformer, and the positive and negative ends of the current transformer are connected with an ADC port of the MCU chip through a current acquisition circuit and are connected with a power supply through the current acquisition circuit to form a loop;

the drive unit comprises a triode drive circuit, the base of the triode drive circuit is connected with the IO port and the emitting electrode of the MCU chip and grounded, the collecting electrode of the triode drive circuit is connected with the warning unit, and the warning unit is connected with the power supply through the triode drive circuit to form a loop.

Furthermore, the current acquisition circuit comprises an LM358 amplifier, wherein a pin 2 and a pin 3 of the LM358 amplifier are respectively connected with a signal output pin of a current transformer, and an output end of the LM358 amplifier is connected with an ADC port of the MCU chip.

Further, the power source includes a button cell.

Further, the warning unit comprises one or more of a buzzer or an LED lamp.

The utility model provides a bipolar electrocoagulation clamp based on an indication circuit for the bipolar electrocoagulation clamp, which comprises a first clamp head and a second clamp head, wherein the first clamp head is connected with a first electrode, the second clamp head is connected with a second electrode, both the first electrode and the second electrode are provided with leads, the lead connected with the first electrode or the lead connected with the second electrode penetrates through a coil of a current transformer and is connected with a driving power supply, and the driving power supply is used for supplying power to the first electrode and the second electrode;

the first tong head is hinged with the second tong head, and the first electrode and the second electrode are connected with the conductor and form a loop with the driving power supply through the first tong head and the second tong head.

Further, the bipolar coagulation forceps further comprise a shell, wherein a protective shell is arranged in an inner cavity of the shell and used for protecting the indicating circuit.

Through the technical scheme, the utility model has the beneficial effects that:

1. the current detection device is provided with a current sensor, the output end of the current sensor is connected with a current acquisition circuit, the current acquisition circuit is connected with an MCU chip, the MCU chip is connected with a driving unit, and the driving unit is connected with a warning unit;

When the electric coagulation hemostasis is carried out, the current sensor detects the current change of the electric coagulation forceps, the MCU chip sets the current threshold value of the electric coagulation forceps, and when the current value detected by the current sensor reaches the current threshold value of the electric coagulation forceps, the MCU chip enables the warning unit to operate through the driving unit, so that an electric coagulation hemostasis stop signal is provided for medical staff.

2. The indicating circuit is arranged in the electrocoagulation clamp shell and is far away from the clamp head, so that the operation environment is not interfered by electrocoagulation hemostasis operation, and meanwhile, the current transformer is adopted to collect the operation current of the bipolar electrocoagulation clamp, the bipolar electrocoagulation clamp is not required to be electrically connected in a connection mode, and the stability of the system is improved.

3. The indicating circuit has the advantages of simple structure, convenient integration and convenient use.

Drawings

FIG. 1 is an electrical schematic of an indicator circuit for a bipolar electrocoagulation clamp of the present invention;

FIG. 2 is a schematic diagram of an indicating circuit for a bipolar coagulation forceps and a principle of the bipolar coagulation forceps according to the present invention;

FIG. 3 is one of the schematic structural views of a bipolar coagulation forceps of the present invention;

FIG. 4 is a second schematic diagram of the structure of a bipolar coagulation forceps of the present invention.

Reference numerals: the LED lamp comprises a current transformer 1, a current acquisition circuit 2, an MCU chip 3, a triode drive circuit 4, a button battery 5, a buzzer 6, an LED lamp 7, a first binding clip 8, a second binding clip 9, a first electrode 10, a second electrode 11 and a protective shell 12.

Detailed Description

The utility model is further described with reference to the following figures and detailed description:

example 1

As shown in fig. 1-2, in a first aspect of the present invention, an indicating circuit for a bipolar electrocoagulation clamp is provided, which includes a power supply, and further includes a current sensor, an output end of the current sensor is connected with a current collecting circuit 2, the current collecting circuit 2 is connected with an MCU chip 3, the MCU chip 3 is connected with a driving unit, and the driving unit is connected with a warning unit;

the current sensor comprises a current transformer 1, wherein the positive and negative ends of the current transformer 1 are connected with an ADC port of the MCU chip 3 through a current acquisition circuit 2 and are connected with a power supply through the current acquisition circuit 2 to form a loop;

the drive unit comprises a triode drive circuit 4, the base of the triode drive circuit 4 is connected with the IO port and the emitting electrode of the MCU chip 3, the emitting electrode is grounded, the collecting electrode is connected with the warning unit, and the warning unit is connected with a power supply through the triode drive circuit 4 to form a loop.

In order to optimize the circuit structure and enable the detection value to be more accurate, the current acquisition circuit 2 comprises an LM358 amplifier, and a pin 2 and a pin 3 of the LM358 amplifier are respectively connected with a signal output pin of the current transformer 1 and an output end of the LM358 amplifier is connected with an ADC port of the MCU chip 3.

As an embodiment, the power source comprises a button cell battery 5.

As an implementation mode, the warning unit includes one or more combination of a buzzer 6 or an LED lamp 7.

Example 2

Based on the embodiment 1 as shown in fig. 1 to 4, a second aspect of the present invention provides a bipolar coagulation forceps, which includes a first forceps head 8 and a second forceps head 9, the first forceps head 8 is connected to a first electrode 10, the second forceps head 9 is connected to a second electrode 11, the first electrode 10 and the second electrode 11 are both provided with a conducting wire, the conducting wire connected to the first electrode 10 or the conducting wire connected to the second electrode 11 passes through a coil of the current transformer 1 and is connected to a driving power supply, and the driving power supply is used for supplying power to the first electrode 10 and the second electrode 11;

the first tong head 8 and the second tong head 9 are hinged, and a first electrode 10 and a second electrode 11 are connected with a conductor and form a loop with a driving power supply through the first tong head 8 and the second tong head 9.

As an implementation mode, the bipolar coagulation forceps further comprise a shell, wherein the inner cavity of the shell is provided with a protective shell 12, and the protective shell 12 is used for protecting the indicating circuit.

The electrocoagulation hemostasis operation of the endoscopically cuttable bipolar coagulation forceps shown in FIG. 3 and the endoscopically cuttable, bendable bipolar coagulation forceps shown in FIG. 4 will be described in connection with examples 1 and 2.

During the electrocoagulation hemostasis operation, as shown in fig. 2, the first forceps head 8 and the second forceps head 9 are enabled to clamp wound tissues through the handle, and after the human body is electrified, the first electrode 10 and the second electrode 11 are communicated through the wound tissues (marked by a in the figure) to generate heat energy, so that the wound tissues are rapidly solidified under the action of high heat to complete hemostasis;

meanwhile, the conductivity of wound surface tissues is obviously changed in the electrocoagulation hemostasis process, a lead passes through a coil of the current transformer 1 in a loop formed by the first electrode 10, the second electrode 11, the driving power supply and the wound surface tissues, the circuit is indicated to operate after the circuit is powered on, and when the loop formed by the first electrode 10, the second electrode 11, the driving power supply and the wound surface tissues is powered on, the current transformer 1 outputs a current signal; the current signal is transmitted to the MCU chip 3 through the current acquisition circuit 2, an electric coagulation forceps current threshold value is arranged in a program of the MCU chip 3, and when a detection value received by the MCU chip 3 reaches the electric coagulation forceps current threshold value, an IO pin of the MCU chip 3 outputs a high-level signal to conduct the triode driving circuit 4, so that the LED lamp 7 emits light or the buzzer 6 gives an alarm by sound;

when the warning unit acts, the electrocoagulation hemostasis operation is proved to be completed, and the medical care worker is indicated to carry out the next operation.

The utility model has simple and convenient operation process, simultaneously solves the problem of controlling the electrocoagulation hemostasis duration by depending on experience, and improves the electrocoagulation hemostasis effect by using the bipolar electrocoagulation pliers.

The above-described embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the utility model, so that equivalent changes or modifications in the structure, features and principles described in the present invention should be included in the claims of the present invention.

Claims

1. The indicating circuit for the bipolar electrocoagulation forceps comprises a power supply and is characterized by further comprising a current sensor, wherein the output end of the current sensor is connected with a current acquisition circuit (2), the current acquisition circuit (2) is connected with an MCU (microprogrammed control unit) chip (3), the MCU chip (3) is connected with a driving unit, and the driving unit is connected with a warning unit;

the current sensor comprises a current transformer (1), wherein the positive and negative ends of the current transformer (1) are connected with an ADC port of the MCU chip (3) through a current acquisition circuit (2), and are connected with a power supply through the current acquisition circuit (2) to form a loop;

the drive unit includes triode drive circuit (4), IO mouth, the projecting pole ground connection of MCU chip (3) are connected to the base of triode drive circuit (4), and the warning unit is connected to the collecting electrode, the warning unit forms the return circuit through triode drive circuit (4) connection power.

2. The indication circuit for the bipolar electrocoagulation pliers according to claim 1, wherein the current collection circuit (2) comprises an LM358 amplifier, a pin 2 and a pin 3 of the LM358 amplifier are respectively connected with a signal output pin of the current transformer (1), and an output terminal of the LM358 amplifier is connected with an ADC port of the MCU chip (3).

3. An indicator circuit for bipolar electrocoagulation pliers according to claim 1, wherein the power source comprises a button cell (5).

4. An indicator circuit for bipolar electrocoagulation pliers according to claim 1, wherein the warning unit comprises one or more of a buzzer (6) or an LED light (7) in combination.

5. A bipolar electrocoagulation clamp comprising an indicating circuit for the bipolar electrocoagulation clamp as set forth in any one of claims 1 to 4, wherein the indicating circuit comprises a first clamp head (8) and a second clamp head (9), the first clamp head (8) is connected with a first electrode (10), the second clamp head (9) is connected with a second electrode (11), both the first electrode (10) and the second electrode (11) are provided with conducting wires, the conducting wire connected with the first electrode (10) or the conducting wire connected with the second electrode (11) passes through a coil of a current transformer (1) to be connected with a driving power supply, and the driving power supply is used for supplying power to the first electrode (10) and the second electrode (11);

the first tong head (8) is hinged with the second tong head (9), and a first electrode (10) and a second electrode (11) are connected with a conductor and form a loop with a driving power supply through the first tong head (8) and the second tong head (9).

6. A bipolar coagulation forceps according to claim 5 further comprising a housing (12), the internal cavity of the housing (12) being provided with a protective sheath for protecting the indicator circuit.