Synchronizer for electrocautery

Abstract

A synchronizer for electrocautery includes a grip and an electrode unit coupled with the grip. The grip includes a first inner substrate; a second inner substrate coupled and aligned with the first inner substrate to form an internal channel; a circuit board coupled with the first inner substrate; a pivot disposed on the first inner substrate; and a lever unit. The internal channel has a first opening; a second opening in opposite to the first opening; and the third opening between the first opening and the second opening. A lever unit has a proximal end, disposed on the first inner substrate and coupled with the pivot; a distal end, aligned with the third opening; a first protruding point located between the proximal end and the distal end and aligned with the coagulation switch. The electrode includes an electrode partially disposed within the internal channel, and coupled with the circuit board.

Description

TITLESYNCHRONIZER FOR ELECTROCAUTERYCROSS REFERENCE TO RELATED APPLICATION

[0001] This application claims the benefit of U.S. Provisional Application No. 63 / 688,848, filed on August 29th, 2024. The content of the application is incorporated herein by reference.BACKGROUND OF THE INVENTION

[0002] 1. FIELD OF THE INVENTION

[0003] The present disclosure relates to a synchronizer for electrocautery, and more particularly to a synchronizer integrating an electrocautery controller and an evacuation controller for achieving management of electrocauterization and evacuation simultaneously under electrocauterization surgery.

[0004] 2. DESCRIPTION OF THE PRIOR ART

[0005] Electrocautery is a surgical procedure using heat from an electric current to remove or cut abnormal tissue, control bleeding during surgery or after an injury, and prevent infection. Conventional electrocautery device (or thermocautery unit) usually includes an electrode, a handpiece, and a generator, and is operated by an activation switch on the handpiece or a foot switch during the electrocautery. The electric current passes through the electrode, and the tip of the electrode is heated to remove or cut abnormal tissue by direct transferring the heat to the tissue. However, smoke and / or body fluid might be generated during the electrocautery, blocking the view of the surgical site and affecting the health of the healthcare workers.

[0006] Moreover, the activation of evacuation and the electrocauterization are often controlled and disposed independently in these electrocautery devices. For example, the healthcare workers may need to manage to modulate the evacuation and the electrocauterization by the activation switch on the handpiece and the foot switch, respectively, making the surgical procedure complicate and distracting the healthcare workers.

[0007] In view of the foregoing, there is an unmet need in the art to provide a novel electrocautery device being able to solve the aforementioned problems.SUMMARY OF THE INVENTION

[0008] To solve the aforementioned problems, the present disclosure provides a synchronizerfor electrocautery, including a grip and an electrode unit coupled with the grip. The grip includes a first inner substrate; a second inner substrate coupled and aligned with the first inner substrate to form an internal channel; a circuit board having a coagulation switch and coupled with the first inner substrate; a pivot disposed on the first inner substrate; and a lever unit. The internal channel has a first opening, used to allow a first airflow to pass into the internal channel; a second opening in opposite to the first opening and used to couple with an evacuation device; and the third opening between the first opening and the second opening, and used to allow a second airflow to pass into the internal channel. The first opening, the second opening, and the third opening are in communication with each other. The evacuation device may be used to provide a third airflow, and the third airflow is a sum of the first airflow and the second airflow. A lever unit has a proximal end, disposed on the first inner substrate and coupled with the pivot; a distal end, aligned with the third opening; and a first protruding point located between the proximal end and the distal end and aligned with the coagulation switch. The lever unit is used to reciprocate based on the pivot. The electrode unit includes an electrode partially disposed within the internal channel, and coupled with the circuit board.

[0009] In at least one embodiments of the present disclosure, the synchronizer for electrocautery is able to remove surgical smoke and / or body fluid, to regulate suction flow rate based on the electrocautery state, to reduce unnecessary smoke and / or body fluid evacuation, and to synchronize an evacuation mode and a electrocauterization mode, allowing to remain the steady state of the intra-abdominal pressure and manage the evacuation mode and the electrocauterization mode in an optimal and an efficient manner.

[0010] The present disclosure will no doubt become understandable to those of ordinary skill in the art after reading the following detailed description of the embodiment that is illustrated in the various figures and drawings.BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG. l is a schematic diagram of a top view of a synchronizer according to at least one embodiment of the present disclosure.

[0012] FIG. 2 is a schematic diagram of a side view of a synchronizer according to at least one embodiment of the present disclosure.

[0013] FIG. 3A is a schematic diagram of a cross-sectional side view of a synchronizer without an electrode unit according to at least one embodiment of the present disclosure.

[0014] FIG. 3B is a schematic diagram of a cross-sectional side view of a synchronizer with an electrode unit according to at least one embodiment of the present disclosure.

[0015] FIG. 4 is a schematic diagram of a cross-sectional side view of a synchronizer under a weak evacuation mode according to at least one embodiment of the present disclosure.

[0016] FIG. 5 is a schematic diagram of a cross-sectional side view of a synchronizer under a strong evacuation mode according to at least one embodiment of the present disclosure.

[0017] FIG. 6 is a schematic diagram of a cross-sectional side view of a synchronizer under a strong evacuation mode and a coagulation mode according to at least one embodiment of the present disclosure.DETAILED DESCRIPTION

[0018] The following descriptions of the embodiments illustrate implementations of the present disclosure, and those skilled in the art of the present disclosure can readily understand the advantages and effects of the present disclosure in accordance with the contents herein. However, the embodiments of the present disclosure are not intended to limit the scope of the present disclosure. The present disclosure can be practiced or applied by other alternative embodiments, and every detail included in the present disclosure can be changed or modified in accordance with different aspects and applications without departing from the essentiality of the present disclosure.

[0019] The features such as a ratio, structure, and dimension shown in drawings accompanied with the present disclosure are simply used to cooperate with the contents disclosed herein for those skilled in the art to read and understand the present disclosure, rather than to limit the scope of implementation of the present disclosure. Thus, in the case that does not affect the purpose of the present disclosure and the effect brought by the present disclosure, any change in proportional relationships, structural modification, or dimensional adjustment should fall within the scope of the technical contents disclosed herein.

[0020] As used herein, “comprising” (and any variant or conjugation thereof, such as “comprise” or “comprises”), “including” (and any variant or conjugation thereof, such as “include” or “includes”), or “having” (and any variant or conjugation thereof, such as “have” or “has”) a specific element, unless otherwise specified, may include other elements such as units, substrates, structures, regions, portions, devices, systems, steps, or connection relationships rather than exclude those elements.

[0021] The terms “within,” “on,” “outer,” “inner,” “top,” “side,” “front,” and “between” described herein are simply used to clarify the embodiments of the present disclosure, rather thanused to limit the scope of implementation of the present disclosure. Adjustments, interchanges, and alteration of relative positions and relationships thereof should be considered within the scope of implementation of the present disclosure if the technical contents of the present disclosure are not substantially changed.

[0022] The terms “first,” “second,” “third,” “fourth,” “fifth,” “sixth,” “seventh,” etc., used herein are simply used to describe or distinguish elements such as units, substrates, structures, regions, portions, devices, or systems, rather than used to limit the scope of implementation of the present disclosure or to limit the spatial order of the elements. In addition, unless otherwise specified, the singular forms “a” and “the” used herein also include plural forms, and the terms “or” and “and / or” used herein are interchangeable.

[0023] As used herein, the phrase “at least one,” in reference to a list of one or more elements, should be understood to mean at least one element selected from any one or more of the elements in the list of elements, but not necessarily including at least one of each element listed within the list of elements and not excluding any combinations of elements in the list of elements. This definition also allows that elements may optionally be present other than the elements identified within the list of elements to which the phrase “at least one” refers, whether related or unrelated to those elements identified. Thus, as a non-limiting example, “at least one of A and B” (or, equivalently, “at least one of A or B,” or, equivalently, “at least one of A and / or B”) can refer, in one embodiment, to at least one, optionally including more than one, A, with no B present (and optionally including elements other than B); in another embodiment, to at least one, optionally including more than one, B, with no A present (and optionally including elements other than A); in yet another embodiment, to at least one, optionally including more than one, A, and at least one, optionally including more than one, B (and optionally including other elements).

[0024] It will be understood that when an element or layer is referred to as being “on,” “in,” “disposed within,” “disposed between,” “connected with,” or “coupled with” another element or layer, it may directly or indirectly on, in, connected or coupled with the other element or layer or intervening elements or layers may be present. In contrast, when an element is referred to as being “directly on,” “directly in,” “directly connected with” or “directly coupled with” another element or layer, there are no intervening elements or layers present. Like numerals refer to like elements throughout. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items.

[0025] As used herein, the term “approximately” generally referring to the numerical value meant to encompass variations of ±20%, ±10%, ±5%, ±1%, ±0.5%, or ±0.1% from a given value or range. Such variations in the numerical value may occur by, for example, the experimental error, the typical error in measuring or handling procedure, the differences in the source, manufacture, or purity of starting materials or ingredients used in the present disclosure, or like considerations. Alternatively, the term “approximately” means within an acceptable standard error of the mean when considered by a person having ordinary skill in the art. Unless otherwise expressly specified, all of the numerical ranges, amounts, values and percentages such as those for quantities of materials, durations of time periods, temperatures, operating conditions, ratios of amounts, and the likes disclosed herein should be understood as modified in all instances by the term “approximately.”

[0026] As used herein, the phrase “element A is in contact with element B” may refer to a feature that the element A and the element B are in physical and direct contact with each other.

[0027] As used herein, the phrase “element A is in communication with element B” may refer to a feature that a material can flow between the element A and the element B. The materials may be fluid, such as gas or liquid, but the present disclosure is not limited thereto. The element A may be in communication with the element B directly or indirectly, for example, the element A may be in communication with the element B via an internal channel, but the present disclosure is not limited thereto.

[0028] In at least one embodiment of the present disclosure, the electrode unit may further include a sleeve partially covering the electrode, and the electrode may further include a tip portion without being covered by the sleeve.

[0029] In at least one embodiment of the present disclosure, the electrode may further include a fourth opening. The fourth opening may be aligned with the third opening and used to allow the second airflow to pass into the internal channel, and the first opening, the second opening, the third opening, and fourth opening may be in communication with each other.

[0030] In at least one embodiment of the present disclosure, the grip may further include a first outer substrate having a sixth opening and coupled with the lever unit, and the lever unit may further include a coagulation button having the first protruding point and disposed within the sixth opening.

[0031] In at least one embodiment of the present disclosure, the grip may further include a second outer substrate coupled and aligned with the first outer substrate. The second outer substrate may have a seventh opening used to allow the second airflow to pass into the internal channel, and the first opening, the second opening, and the third opening, the fourth opening, and the seventh opening may be in communication with each other.

[0032] In at least one embodiment of the present disclosure, the grip may further include a plug blocking the seventh opening to prevent the second airflow from passing into the internal channel if the synchronizer is under power-off state.

[0033] In at least one embodiment of the present disclosure, the first outer substrate may further include a fifth opening; the circuit board may further include a cutting switch; and the lever unit may further include a cutting button disposed within the fifth opening and aligned with the cutting switch.

[0034] In at least one embodiment of the present disclosure, the lever unit may further include a second protruding point; the grip may further include an elastic unit disposed on the first inner substrate and coupled with the second protruding point; and the second protruding point may be used to compress the elastic unit to generate an elastic force involved in reciprocation of the lever unit.

[0035] In at least one embodiment of the present disclosure, the coagulation button and the elastic unit may be under a relaxing state, the distal end of the lever unit may be against the first outer substrate, the third opening may remain open, such that the synchronizer may be used to operate in a weak evacuation mode to allow the first airflow and the second airflow to pass through the internal channel.

[0036] In at least one embodiment of the present disclosure, the tip portion may be under a weak negative pressure. The weak negative pressure is resulting from the first airflow, which is weaker than the third airflow produced by the evacuation device consistently.

[0037] In at least one embodiment of the present disclosure, the coagulation button and the elastic unit may be under a compressing state, the third opening may be blocked by the distal end of the lever unit, such that the synchronizer may be used to operate in a strong evacuation modeto allow only the first airflow to pass through the internal channel.

[0038] In at least one embodiment of the present disclosure, the tip portion may be under a strong negative pressure. The strong negative pressure is resulting from the first airflow, which is equivalent to the third airflow produced by the evacuation device consistently.

[0039] In some embodiments of the present disclosure, the first airflow is weaker than the second airflow under weak evacuation mode. In some embodiments of the present disclosure, the third airflow is produced by the evacuation device consistently.

[0040] In some embodiments of the present disclosure, the first airflow is zero, while the second airflow is equivalent to the third airflow under weak evacuation mode. In some embodiments of the present disclosure, the second airflow is zero, while the first airflow is equivalent to the third airflow under strong evacuation mode.

[0041] In some embodiments of the present disclosure, the first airflow is approximately zero, while the second airflow is approximately equivalent to the third airflow under weak evacuation mode.

[0042] In at least one embodiment of the present disclosure, the coagulation switch may be pressed and activated by the first protruding point, such that the synchronizer may be used to operate in the strong evacuation mode and a coagulation mode simultaneously.

[0043] In at least one embodiment of the present disclosure, the grip may further include a valve unit between the second opening and the evacuation device. The valve unit may be used to regulate suction force of the evacuation device.

[0044] In at least one embodiment of the present disclosure, the grip may further include a conductive unit coupled with the circuit board and the electrode.

[0045] In at least one embodiment of the present disclosure, the synchronizer may further include a cable coupled with the grip; and a connector coupled with the cable.

[0046] In at least one embodiment of the present disclosure, the first opening, the second opening, and the third opening may not be in contact with each other. In some embodiments ofthe present disclosure, the third opening may be in contact with the fourth opening. In some embodiments of the present disclosure, the third opening may not be in contact with the fourth opening. In some embodiments of the present disclosure, the seventh opening may be in contact with at least one selected from the group consisting of the first opening, the second opening, the third opening, and the fourth opening. In some embodiments of the present disclosure, the seventh opening may not be in contact with at least one selected from the group consisting of the first opening, the second opening, the third opening, and the fourth opening.EXAMPLES

[0047] Exemplary embodiments of the present disclosure are further described in the following examples, which should not be construed to limit the scope of the present disclosure.

[0048] Referring to FIG. 1 and FIG. 2, FIG. 1 is a schematic diagram of a top view of a synchronizer EES, and FIG. 2 is a schematic diagram of a side view of a synchronizer EES. The synchronizer EES may be an electrocautery pencil integrating functions of evacuation and electrocauterization, but the present disclosure is not limited thereto. The synchronizer EES includes an electrode unit 1, a grip 2, a cable 3, and a connector 4. The electrode unit 1 includes a sleeve 11 and a tip portion 121 of an electrode 12 (referring to FIG. 3B). The sleeve 11 includes a protective insulation coating preventing unintended tissue damage and bums by directing electrical current to the surgical site. The connector 4 is used to connect with a generator providing multiple electrical waveforms (for example, electrical waveforms specific for cutting mode or coagulation mode). Once the generator is activated, the electric current flows through the cable 3, the grip 2, and the tip portion 121 of the electrode unit 1, in order to burn the tissue by direct transfer of heat generated by the electrical current.

[0049] In some embodiments of the present disclosure, the tip portion 121 may be monopolar or bipolar, but the present disclosure is not limited thereto. In some embodiments of the present disclosure, the connector 4 may be a 3-pin plug, but the present disclosure is not limited thereto.

[0050] Referring to FIG. 3 A and FIG. 3B, FIG. 3 A is a schematic diagram of a cross-sectional side view of a synchronizer EES without an electrode unit 1; and FIG. 3B is a schematic diagram of a cross-sectional side view of a synchronizer EES with an electrode unit 1. As shown in FIG. 3 A, the synchronizer EES includes a grip 2 and a cable 3. An evacuation device 5 is connected to an internal channel 22 of the grip 2. The grip 2 includes a first outer substrate 21 having a fifth opening 211 and sixth opening 212, in order to fit a cutting button 245 and a coagulation button243, respectively; first inner substrate 22A having a third opening 223; second inner substrate 22B; circuit board 23 having a cutting switch 231 and a coagulation 232; a lever unit 24; a pivot 244; a conductive unit 25; a second waterproof cover 26; an elastic unit 27; valve unit 28; a second outer substrate 29 having a seven opening 291; and a plug 292. The lever unit 24 includes a distal end 241D, a proximal end 241P, a first protruding point 242, the coagulation button 243, the cutting button 245, a second protruding point 246, a first waterproof cover 247. The first inner substrate 22A and the second inner substrate 22B is coupled and aligned with each other in order to the internal channel 22. The internal channel 22 includes a first opening 221 and a second opening 222.

[0051] In comparison to FIG. 3 A, an electrode 12 covered by a sleeve 11 and disposed in a first opening 221 of internal channel 22 is shown in FIG. 3B. The description of the remaining components illustrated in FIG. 3B is the same as aforementioned paragraph for FIG. 3 A and will not be repeated here.

[0052] In some embodiments of the present disclosure, the conductive unit 25 and the elastic unit 27 may be a spring, but the present disclosure is not limited thereto. In some embodiments of the present disclosure, the material of the distal end 24 ID may be silicone, but the present disclosure is not limited thereto. In some embodiments of the present disclosure, the first protruding point 242 and the coagulation button 243 may be an one-piece / integrated unit, but the present disclosure is not limited thereto. In some embodiments of the present disclosure, the first protruding point 242 and the coagulation button 243 may be a separated unit, for example, the first protruding point 242 may be a screw, but the present disclosure is not limited thereto. In some embodiments of the present disclosure, the material of the first waterproof cover 247 may be silicone, but the present disclosure is not limited thereto.

[0053] Referring to FIG. 4, FIG. 4 is a schematic diagram of a cross-sectional side view of a synchronizer EES under a weak evacuation mode. The components illustrated in FIG. 4 are described in the aforementioned paragraphs for FIG. 1 to FIG. 3B and will not be repeated here. During an electrocautery, the evacuation device 5 is enabled and the plug 292 is removed, and the coagulation button 243 is not pressed by the user’s finger UF. Therefore, a first airflow Fl flows into the internal channel 22 via the first opening 221; and a second airflow F2 flows into the internal channel 22 via the seventh opening 291, the third opening 223, and the fourth opening 122, allowing the synchronizer EES to function the weak evacuation mode. The valve unit 28 is used to regulate suction force of the evacuation device 5.

[0054] In some embodiments of the present disclosure, the first airflow Fl and the second airflow F2 may include a smoke and / or body fluid generated during an electrocautery, but the present disclosure is not limited thereto.

[0055] Referring to FIG. 5, FIG. 5 is a schematic diagram of a cross-sectional side view of a synchronizer EES under a strong evacuation mode. The components illustrated in FIG. 5 are described in the aforementioned paragraphs for FIG. 1 to FIG. 3B and will not be repeated here. During an electrocautery, the evacuation device 5 is enabled and the plug 292 is removed, and the coagulation button 243 is pressed by the user’s finger UF in a first order (e,g., the user slightly presses the coagulation button 243), allowing the distal end 24 ID of the lever unit 24 to block the third opening 223 based on the pivot 244. Therefore, only the first airflow Fl flows into the internal channel 22 via the first opening 221, allowing the synchronizer EES to function the strong evacuation mode. The elastic unit 27 is compressed by the second protruding point 246. The valve unit 28 is used to regulate suction force of the evacuation device 5.

[0056] Referring to FIG. 6, FIG. 6 is a schematic diagram of a cross-sectional side view of a synchronizer EES under a strong evacuation mode and a coagulation mode. The components illustrated in FIG. 6 are described in the aforementioned paragraphs for FIG. 1 to FIG. 3B and will not be repeated here. During an electrocautery, the evacuation device 5 is enabled and the plug 292 is removed, and the coagulation button 243 is pressed by the user’s finger UF in a second order (e,g., the user heavily presses the coagulation button 243), allowing the distal end 24 ID of the lever unit 24 to block the third opening 223 and the coagulation switch 232 is pressed and activated by the first protruding point 242 based on the pivot 244. Therefore, only the first airflow Fl flows into the internal channel 22 via the first opening 221 and the electrical signal of coagulation is transferred from the coagulation switch 232 to the electrode 12 via the conductive unit 25, allowing the synchronizer EES to function the strong evacuation mode and the coagulation mode. The elastic unit 27 is compressed by the second protruding point 246. The valve unit 28 is used to regulate suction force of the evacuation device 5.

[0057] In some embodiments of the present disclosure, the conductive unit 25 is electrically connected continuously, but the present disclosure is not limited thereto.

[0058] A novel synchronizer EES being able to remove surgical smoke and / or body fluid, to regulate suction flow rate based on the electrocautery state, to reduce unnecessary smoke and / orbody fluid evacuation, and to synchronize an evacuation mode and a electrocauterization mode is provided in the present disclosure. The novel synchronizer EES not only allows to remain the steady state of the intra-abdominal pressure of the patient but also allows the healthcare workers to manage the evacuation and the electrocauterization in an optimal and an efficient manner at the same time.

[0059] Those skilled in the art will readily observe that numerous modifications and alterations of the embodiments may be made while retaining the teachings of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.

Claims

CLAIMSWhat is claimed is:

1. A synchronizer for electrocautery, comprising: a grip, comprising: a first inner substrate; a second inner substrate coupled and aligned with the first inner substrate to form an internal channel, wherein the internal channel has: a first opening, configured to allow a first airflow to pass into the internal channel; a second opening in opposite to the first opening and configured to couple with an evacuation device; and the third opening between the first opening and the second opening, and configured to allow a second airflow to pass into the internal channel; wherein the first opening, the second opening, and the third opening are in communication with each other, and wherein the evacuation device is configured to provide a third airflow, and the third airflow is a sum of the first airflow and the second airflow; a circuit board having a coagulation switch and coupled with the first inner substrate; a pivot disposed on the first inner substrate; and a lever unit having: a proximal end, disposed on the first inner substrate and coupled with the pivot; a distal end, aligned with the third opening; and a first protruding point located between the proximal end and the distal end and aligned with the coagulation switch; wherein the lever unit is configured to reciprocate based on the pivot; and an electrode unit coupled with the grip, comprising: an electrode partially disposed within the internal channel, and coupled with the circuit board.

2. The synchronizer of claim 1, wherein the electrode unit further comprises a sleeve partially covering the electrode, and the electrode further comprises a tip portion without being covered by the sleeve.

3. The synchronizer of claim 1, wherein the electrode further comprises a fourth opening, wherein the fourth opening is aligned with the third opening and configured to allow the secondairflow to pass into the internal channel, and the first opening, the second opening, the third opening, and fourth opening are in communication with each other.

4. The synchronizer of claim 2, wherein the grip further comprises a first outer substrate having a sixth opening and coupled with the lever unit, and the lever unit further comprises a coagulation button having the first protruding point and disposed within the sixth opening.

5. The synchronizer of claim 4, wherein the grip further comprises a second outer substrate coupled and aligned with the first outer substrate, wherein the second outer substrate has a seventh opening configured to allow the second airflow to pass into the internal channel, and wherein the first opening, the second opening, and the third opening, the fourth opening, and the seventh opening are in communication with each other.

6. The synchronizer of claim 5, wherein the grip further comprises a plug blocking the seventh opening to prevent the second airflow from passing into the internal channel if the synchronizer is under power-off state.

7. The synchronizer of claim 4, wherein: the first outer substrate further has a fifth opening; the circuit board further comprises a cutting switch; and the lever unit further comprises a cutting button disposed within the fifth opening and aligned with the cutting switch.

8. The synchronizer of claim 4, wherein: the lever unit further comprises a second protruding point; the grip further comprises an elastic unit disposed on the first inner substrate and coupled with the second protruding point; and the second protruding point is configured to compress the elastic unit to generate an elastic force involved in reciprocation of the lever unit.

9. The synchronizer of claim 8, wherein the coagulation button and the elastic unit are under a relaxing state, the distal end of the lever unit is against the first outer substrate, the third opening remains open, such that the synchronizer is configured to operate in a weak evacuation mode to allow the first airflow and the second airflow to pass through the internal channel.

10. The synchronizer of claim 9, wherein the tip portion is under a weak negative pressure.

11. The synchronizer of claim 8, wherein the coagulation button and the elastic unit are under a compressing state, the third opening is blocked by the distal end of the lever unit, such that the synchronizer is configured to operate in a strong evacuation mode to allow only the first airflow to pass through the internal channel.

12. The synchronizer of claim 11, wherein the tip portion is under a strong negative pressure.

13. The synchronizer of claim 11, wherein the coagulation switch is pressed and activated by the first protruding point, such that the synchronizer is configured to operate in the strong evacuation mode and a coagulation mode simultaneously.

14. The synchronizer of claim 1, wherein the grip further comprises a valve unit between the second opening and the evacuation device, wherein the valve unit is configured to regulate suction force of the evacuation device.

15. The synchronizer of claim 1, wherein the grip further comprises a conductive unit coupled with the circuit board and the electrode.

16. The synchronizer of claim 1, further comprising: a cable coupled with the grip; and a connector coupled with the cable.

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