Intense pulsed light therapy device

Abstract

The application relates to the technical field of medical equipment, in particular to a strong pulsed light therapeutic instrument which comprises a host computer assembly, the upper surface of the host computer assembly is fixedly installed with a display screen, both ends of the host computer assembly are inserted with handle assemblies, one end of each handle assembly is electrically connected with the host computer assembly, the front end of the host computer assembly is fixedly installed with a key switch and an emergency stop switch, the inner lower end of the host computer assembly is fixedly installed with a heat dissipation assembly, the rear side of the host computer assembly is fixedly installed with an air switch, the incoming line end of the air switch is electrically connected with external commercial power, and the air switch output end is electrically connected with the host computer assembly. When in use, two handle assemblies are adopted, the wavelengths, treatment areas and energy densities of the two handle assemblies are different, the different use requirements can be adjusted, the heat dissipation assembly is adopted, heat dissipation can be conducted when in use, heat accumulation is avoided, the service life is prolonged, and the safety performance during use is improved.

Description

TECHNICAL FIELD

[0001] The application relates to a therapeutic instrument, in particular a strong pulsed light therapeutic instrument, and belongs to the technical field of medical equipment. BACKGROUND

[0002] The strong pulsed light is a kind of visible light walking in a special wavelength. It can produce a soft warm effect and is helpful for treating various skin diseases. The strong pulsed light can form light quanta, which can decompose abnormal pigments in various layers of the skin after irradiating the skin, thereby achieving the effect of whitening. In addition, the light quanta can also destroy hair follicles and abnormal blood vessels, so that the skin is more compact and lustrous. Furthermore, the light quanta can stimulate collagen to proliferate and make the elastic fibers of the face rearrange, thereby achieving the effect of skin moisturizing. The strong pulsed light treatment can whiten and tenderize the skin, and can also treat various skin diseases, so it is widely used in clinical applications.

[0003] For example, a strong pulsed light therapeutic instrument with publication number CN111084933A includes guide rails, a circular arc plate and a lamp head assembly. The guide rails are provided with two sliding grooves on the top. The circular arc plate is slidably connected to the sliding grooves on the top of the guide rails. An adjusting mechanism is connected to the circular arc plate. The lamp head assembly is fixed to the output end of the adjusting mechanism and electrically connected to the main machine. The user only needs to adjust the position of the lamp head assembly through the adjusting rod without bearing the weight of the lamp head assembly, thereby reducing the burden of the user when frequently operating and improving the applicability of the strong pulsed light therapeutic instrument.

[0004] For example, a strong pulsed light therapeutic instrument with publication number CN213789650U includes a main machine

[0005] The main machine box is fixedly connected with a touch display screen at the center of the top. An emergency stop switch and a key switch are arranged on the front surface of the main machine box. The emergency stop switch is located above the key switch. A socket groove is formed in the center of the front surface of the main machine box. A hand tool plug is movably connected in the socket groove. The number of the hand tool plugs is two. A treatment head is arranged on the end of the hand tool plug away from the socket groove. Through the cooperation of the main machine box, the touch display screen, the emergency stop switch, the socket groove, the hand tool plug, the treatment head, the roller and the brake valve, the working efficiency of the therapeutic instrument is improved, and the therapeutic instrument is convenient to move, so that the strong pulsed light therapeutic instrument has the advantages of high efficiency and flexibility.

[0006] For example, the publication number is: CN111388874A, a strong pulse light therapeutic instrument, comprising: base, control panel, treatment head, pre-burning power supply, controller and water circulation mechanism; the water circulation mechanism comprises: circulating water tank, water pump, first electromagnetic valve, second electromagnetic valve, normally open air valve, water flow sensor, check valve and air pump; one end of the water pump is connected to the water outlet of the circulating water tank and the other end is connected to one end of the first electromagnetic valve and one end of the second electromagnetic valve; the other end of the first electromagnetic valve is connected to one end of the heat dissipation module; the other end of the heat dissipation module is connected to the circulating port of the circulating water tank; the other end of the second electromagnetic valve is connected to the drain; one end of the check valve is connected to the air pump and the other end is connected to the connecting pipeline close to the first electromagnetic valve between the first electromagnetic valve and the heat dissipation module. The water circulation mechanism of the strong pulse light therapeutic instrument of the application can automatically discharge sewage, and the air pump can completely discharge the residual water in the heat dissipation module of the xenon lamp.

[0007] However, when in use, it is inconvenient to flexibly adjust the wavelength and treatment area, and when in use, a lot of heat is generated, and it is inconvenient to cool down, resulting in reduced service life.

[0008] Therefore, the present application is proposed, which is convenient to adjust the wavelength and treatment area when in use, convenient to accurately treat the skin, and convenient to adjust the energy density, and has strong applicability. SUMMARY

[0009] The purpose of the present application is to provide a strong pulse light therapeutic instrument to solve the above problems, which is convenient to flexibly select the wavelength, treatment area and energy density by adopting two handle assemblies when in use, and has strong applicability and pertinence.

[0010] The application achieves the above-mentioned purpose through the following technical scheme. A strong pulsed light therapeutic instrument comprises a host assembly, the upper surface of the host assembly is fixedly provided with a display screen, both ends of the host assembly are inserted with handle assemblies, one end of the handle assembly is electrically connected with the host assembly, the front end of the host assembly is fixedly provided with a key switch on one side, the front end of the host assembly is fixedly provided with an emergency stop switch on one side of the key switch, the inner lower end of the host assembly is fixedly provided with a heat dissipation assembly, the rear side of the host assembly is fixedly provided with a heat dissipation hole, one side of the heat dissipation assembly extends to the position of the heat dissipation hole, the rear side of the host assembly is fixedly provided with an air switch, the incoming line end of the air switch is electrically connected with external mains, the output end of the air switch is electrically connected with the host assembly, the host assembly comprises a shell, the display screen is fixedly provided on the upper end of the shell, the inner part of the shell is fixedly provided with a fixed plate, the inner lower end of the fixed plate is fixedly provided with the heat dissipation assembly, the lower end of the fixed plate is fixedly provided with universal wheels on four corners, the universal wheels extend to the outside of the lower end of the shell, the upper end of the shell is fixedly provided with handle racks on both sides, one end of the handle assembly is clamped on the handle rack, the inner upper end of the fixed plate is fixedly provided with a power supply assembly, the upper end of the power supply assembly is fixedly provided with a main control board, the main control board is electrically connected with the display screen, the key switch and the emergency stop switch are electrically connected with the power supply assembly, the inner lower end of the fixed plate is fixedly provided with a capacitor assembly, both sides of the capacitor assembly are fixedly provided with handle inserts, the handle joints are inserted on the handle inserts, when in use, the inner part of the heat dissipation assembly is first injected with water, the heat dissipation assembly is turned on, so that the heat dissipation assembly cools and dissipates heat in the inner part of the host assembly, the air switch is turned on to supply power, the key switch is inserted on the key switch, and is rotated to the opening direction, so that the technical scheme is turned on, the display screen is set, the display screen is electrically connected with the main control board, the main control board controls the power supply assembly and the capacitor assembly, controls the output, and the emergency stop switch is used when in use, when discomfort occurs, the emergency stop switch is used for emergency shutdown, the universal wheels are used for moving the technical scheme, improving the flexibility when in use, when treating, the handle assembly is inserted on the handle insert through the handle joint, so that the handle assembly is electrically connected with the host assembly, and then the handle assembly is used for treating the skin of a patient.

[0011] Further, the handle assembly comprises a handle joint, and the handle joint is inserted on the main machine assembly, one end of the handle joint is fixedly installed with a hose, the other end of the hose is fixedly installed with a treatment handle, and the treatment handle is clamped on the handle frame, the handle assembly comprises two, and the handle assembly is located on both sides of the main machine assembly, the handle assembly is divided into an HR treatment handle and an SR treatment handle, the wavelength of the HR treatment handle is 630-1200nm, the spot area is 16*57mm, and the upper limit of the energy density is 45J / cm 2 , the wavelength of the SR treatment handle is 560-1200nm, the spot area is 8*34mm, and the upper limit of the energy density is 40J / cm 2 , the energy density and pulse mode of the treatment handle in the handle assembly are adjusted through the display screen, the pulse frequency is adjusted, and when in use, the spectrum emitted by the treatment handle is a discontinuous spectrum containing a wide range of visible light wavelengths, the wavelength selection filter range is 630 / 560-1200nm, and the influence on the skin can be determined, including heat, mechanical, electromagnetic, photochemical and physical stimulation, etc., the working principle of IPL is to treat benign lesions of skin pigmentation, vascular diseases and hirsutism by using the photothermal effect, according to the different principles of different target cells (including melanin, hemoglobin, collagen and water) in the skin tissue for light heat absorption, the treatment is carried out by using short pulse width and low energy density of IPL and cooling function, and the effective treatment result is to ensure that normal tissues are not damaged, the principle is to use the selective photothermal characteristics, that is, the long strong pulse light with a wavelength of 630 / 560-1200nm penetrates into the skin, the light is absorbed by abnormal pigment particles and clumps, and is converted into heat energy to decompose the pigment, and the fragments after decomposition are peeled off and the rest are removed from the body by phagocytes, therefore, the color of the pigmentation becomes light or normal after treatment, the principle of the strong pulse light treatment instrument: the strong pulse light generates a multi-wavelength strong pulse wide spectrum color light, which can penetrate the epidermis layer of the skin to reach the dermis layer, act on the target tissues of abnormal pigment cells and blood vessels, decompose the abnormal pigment cells, close the abnormal blood vessels, stimulate collagen proliferation, and promote the rearrangement of elastic fibers, so that the effects of eliminating color spots and tendering skin are achieved, the effects are strong in pertinence, specific in treatment and sufficient in energy, and when treating, a thin layer of cold gel is applied on the treatment site after selecting appropriate energy, the light guide surface of the treatment handle is attached to the treatment site, and the treatment is carried out by pressing the hand control switch on the treatment handle, the machine emits a "ding" sound and the handle counter and the screen display each count once every time the light is emitted, and after the treatment is completed, a treatment file is established for each customer to check and select correct parameters before the next treatment, so that the treatment effect is improved.

[0012] Further, the heat dissipation assembly comprises a water tank, and the water tank is fixedly installed at the lower end of the fixed plate; a circulating water pump is fixedly installed at the lower end of the fixed plate, and the water inlet end of the circulating water pump is in communication with the water tank; a condenser assembly is fixedly installed at one side of the fixed plate, and the water outlet end of the condenser assembly is in communication with the water tank; the water inlet end of the condenser assembly is in communication with the water outlet end of the circulating water pump; one side of the condenser assembly is located at the position of the heat dissipation hole; a water inlet is fixedly installed at the water inlet end of the water tank, and the water inlet is fixedly installed at the rear side of the shell; a drain outlet and an overflow outlet are fixedly installed at the lower end of the rear side of the shell; the drain outlet is in communication with the lower end of the water tank; the other end of the overflow outlet is in communication with one side of the upper end of the water tank; a water level observation window is vertically embeddedly installed at one side of the shell, and the upper end and the lower end of the water level observation window are in communication with the upper end and the lower end of the water tank, respectively; when in use, the inside of the water tank is filled with water through the water inlet; the water level inside the water tank is observed through the water level observation window; the circulating water pump and the condenser assembly are turned on; the water inside the water tank is circulated; the inside of the shell is cooled; the inside of the water tank is cleaned through the drain outlet and the overflow outlet; and the water level is prevented from being too high.

[0013] Technical effects and advantages of the present application: when in use, the two handle assemblies are adopted, the wavelengths, treatment areas and energy densities of the two handle assemblies are different, the different use requirements can be adjusted, the heat dissipation assembly is adopted, heat dissipation is facilitated when in use, heat accumulation is avoided, the service life is improved, and the safety performance during use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic structural view of the whole application;

[0015] Figure 2 It is a schematic structural view of the whole application from another angle;

[0016] Figure 3 It is a schematic structural view of the whole application after removing the handle assembly;

[0017] Figure 4 It is a schematic structural view of the whole application from another angle after removing the handle assembly;

[0018] Figure 5 It is a schematic structural view of the handle assembly;

[0019] Figure 6 It is a schematic structural view of the inside of the main machine assembly;

[0020] Figure 7A structure diagram of the fixed plate in the present application;

[0021] In the figure: 1, main assembly; 101, shell; 102, fixed plate; 103, handle frame; 104, power assembly; 105, main control board; 106, capacitor assembly; 107, handle plug-in; 2, display screen; 3, handle assembly; 301, handle joint; 302, hose; 303, treatment handle; 4, key switch; 5, emergency stop switch; 6, heat dissipation assembly; 601, water tank; 602, circulating water pump; 603, condenser assembly; 604, water inlet; 605, water outlet; 606, overflow port; 607, water level observation window; 7, heat dissipation hole; 8, air switch; 9, universal wheel. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0023] Please refer to Figures 1-7As shown, a kind of intense pulsed light treatment instrument, including host assembly 1, and the upper surface of host assembly 1 is fixedly installed with display screen 2, and the both ends of host assembly 1 are inserted with handle assembly 3, and one end of handle assembly 3 is electrically connected with host assembly 1, and the front end of host assembly 1 is fixedly installed with key switch 4, the front end of host assembly 1 is fixedly installed with emergency stop switch 5 on the side of key switch 4, and the inside lower end of host assembly 1 is fixedly installed with heat dissipation component 6, the rear side of host assembly 1 is fixedly installed with heat dissipation hole 7, and one side of heat dissipation component 6 extends to the position of heat dissipation hole 7, the rear side of host assembly 1 is fixedly installed with air switch 8, and the incoming line end of air switch 8 is electrically connected with external mains, and the output end of air switch 8 is electrically connected with host assembly 1, host assembly 1 includes shell 101, and display screen 2 is fixedly installed on the upper end of shell 101, and fixed plate 102 is fixedly installed in the inside of shell 101, and heat dissipation component 6 is fixedly installed on the inside lower end of fixed plate 102, universal wheel 9 is fixedly installed on the lower end of fixed plate 102, and universal wheel 9 extends to the outside of the lower end of shell 101, handle bracket 103 is fixedly installed on the both sides of the upper end of shell 101, one end of handle assembly 3 is clamped on handle bracket 103, power supply component 104 is fixedly installed on the inside upper end of fixed plate 102, and main control board 105 is fixedly installed on the upper end of power supply component 104, main control board 105 is electrically connected with display screen 2, and key switch 4 and emergency stop switch 5 are electrically connected with power supply component 104, and capacitor component 106 is fixedly installed on the inside lower end of fixed plate 102, and handle plug-in 107 is fixedly installed on the both sides of capacitor component 106, handle connector 301 is inserted on handle plug-in 107, when using, first, the inside of heat dissipation component 6 is injected, and heat dissipation component 6 is started, so that heat dissipation component 6 cools and dissipates heat in the inside of host assembly 1, and through air switch 8, power supply is started, the key inserted on key switch 4 is rotated to the starting direction, so that the present technical solution is started, and the present technical solution is set through display screen 2, and display screen 2 is electrically connected with main control board 105, power supply component 104 and capacitor component 106 are controlled through main control board 105, control output, and through emergency stop switch 5, when using, when not suitable, emergency stop switch 5 is used for emergency shutdown, and universal wheel 9 is used for moving the present technical solution, improve flexibility when using, when treating, handle assembly 3 is inserted on handle plug-in 107 through handle connector 301, so that handle assembly 3 is electrically connected with host assembly 1, and then the skin of patient is treated through handle assembly 3, convenient to use.

[0024] The handle assembly 3 comprises a handle joint 301, which is inserted on the main machine assembly 1, one end of the handle joint 301 is fixedly installed with a hose 302, the other end of the hose 302 is fixedly installed with a treatment handle 303, and the treatment handle 303 is clamped on the handle frame 103; the handle assembly 3 comprises two, and is located on both sides of the main machine assembly 1; the handle assembly 3 is divided into an HR treatment handle and an SR treatment handle; the wavelength of the HR treatment handle is 630-1200 nm, the spot area is 16*57 mm, and the upper limit of the energy density is 45 J / cm 2 ; the wavelength of the SR treatment handle is 560-1200 nm, the spot area is 8*34 mm, and the upper limit of the energy density is 40 J / cm 2 ; the energy density and pulse mode of the treatment handle 303 in the handle assembly 3 are adjusted through the display screen 2, the pulse frequency is adjusted, and when in use, the spectrum of the treatment handle 303 is a discontinuous spectrum containing a wide range of visible light wavelengths; after wavelength selection filtering in the range of 630 / 560-1200 nm, the influence on the skin can be determined, including thermal, mechanical, electromagnetic, photochemical and physical stimulation, etc.; the working principle of IPL is to treat benign lesions of skin pigmentation, vascular diseases and hirsutism by using its photo-thermal effect; according to the different principles of different target cells (including melanin, hemoglobin, collagen and water) in the skin tissue for light-thermal absorption, the treatment is performed by using short pulse width and low energy density of IPL and cooling function, and the effective treatment result is to ensure that normal tissues are not damaged; the principle is to use selective photo-thermal characteristics, that is, strong pulsed light with a wavelength of 630 / 560-1200 nm penetrates into the skin, the light is absorbed by abnormal pigment particles and clumps, and is converted into heat energy to decompose the pigment, and the fragments after decomposition are peeled off in 5-14 days and the rest are removed from the body by phagocytes, so that the color of the pigmentation becomes light or normal after treatment; the principle of the strong pulsed light treatment instrument: the strong pulsed light generates a multi-wavelength strong pulsed light spectrum, which can penetrate the epidermis layer of the skin to reach the dermis layer, act on the target tissues of abnormal pigment cells and blood vessels, decompose the abnormal pigment cells, close the abnormal blood vessels, stimulate collagen proliferation, and promote the rearrangement of elastic fibers, so as to achieve the effects of eliminating color spots and tendering skin; it has the effects of strong targeting, specific treatment and sufficient energy; and when treating, a thin layer of cold gel is applied on the treatment site after selecting appropriate energy, the light guide surface of the treatment handle 303 is attached to the treatment site, and the treatment is performed by pressing the hand control switch on the treatment handle 303; once the light is emitted, the machine will emit a "ding" sound, and the handle counter and the screen display are counted once; after the treatment is completed, a treatment file is established for each customer to check the correct parameters before the next treatment, so as to improve the treatment effect.

[0025] The heat dissipation assembly 6 comprises a water tank 601, and the water tank 601 is fixedly installed at the lower end of the fixed plate 102, the lower end of the fixed plate 102 is fixedly installed with a circulating water pump 602, the water inlet end of the circulating water pump 602 is communicated with the water tank 601, one side of the fixed plate 102 is fixedly installed with a condenser assembly 603, the water outlet end of the condenser assembly 603 is communicated with the water tank 601, the water inlet end of the condenser assembly 603 is communicated with the water outlet end of the circulating water pump 602, one side of the condenser assembly 603 is located at the position of the heat dissipation hole 7, the water inlet end of the water tank 601 is fixedly installed with a water inlet 604, and the water inlet 604 is fixedly installed at the rear side of the shell 101, the rear side of the shell 101 is fixedly installed with a drain port 605 and an overflow port 606, the drain port 605 is communicated with the lower end of the water tank 601, the other end of the overflow port 606 is communicated with one side of the upper end of the water tank 601, the water level observation window 607 is vertically embedded on one side of the shell 101, and the upper end and the lower end of the water level observation window 607 are respectively communicated with the upper end and the lower end of the water tank 601, when in use, the water tank 601 is filled with water through the water inlet 604, and the water level in the water tank 601 is observed through the water level observation window 607, and the circulating water pump 602 and the condenser assembly 603 are started, so that the water in the water tank 601 circulates, the interior of the shell 101 is cooled, the interior of the water tank 601 is cleaned through the drain port 605 and the overflow port 606, and the water level is prevented from being too high.

[0026] It will be obvious to a person skilled in the art that, without departing from the spirit or essential characteristics of the application, the present application can be implemented in other specific forms. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the description given above, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the scope of the claims.

[0027] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A high-intensity pulsed light therapy device, characterized in that: The system includes a main unit (1), and a display screen (2) is fixedly installed on the upper surface of the main unit (1). Both ends of the main unit (1) are connected to a handle assembly (3). One end of the handle assembly (3) is electrically connected to the main unit (1). A key switch (4) is fixedly installed on one side of the front end of the main unit (1). An emergency stop switch (5) is fixedly installed on one side of the key switch (4) at the front end of the main unit (1). A heat dissipation assembly (6) is fixedly installed at the lower end of the interior of the main unit (1). A heat dissipation hole (7) is fixedly installed on the rear side of the main unit (1). One side of the heat dissipation assembly (6) extends to the position of the heat dissipation hole (7). An air switch (8) is fixedly installed on the rear side of the main unit (1). The input end of the air switch (8) is electrically connected to the external mains power. The output end of the air switch (8) is electrically connected to the main unit (1). The host component (1) includes a housing (101), and the display screen (2) is fixedly installed on the upper end of the housing (101). A fixing plate (102) is fixedly installed inside the housing (101), and the heat dissipation component (6) is fixedly installed on the lower end of the fixing plate (102). The heat dissipation assembly (6) includes a water tank (601), and the water tank (601) is fixedly installed at the lower end of the fixing plate (102). A circulating water pump (602) is fixedly installed at the lower end of the fixing plate (102), and the inlet end of the circulating water pump (602) is connected to the water tank (601). A condenser assembly (603) is fixedly installed on one side of the fixing plate (102), and the outlet end of the condenser assembly (603) is connected to the water tank (601). The inlet end of the condenser assembly (603) is connected to the outlet end of the circulating water pump (602), and one side of the condenser assembly (603) is located at the heat dissipation hole (7). The water tank (601) has a water inlet (604) fixedly installed at its inlet end, and the water inlet (604) is fixedly installed on the rear side of the housing (101). The lower rear end of the housing (101) has a drain outlet (605) and an overflow outlet (606) fixedly installed. The drain outlet (605) is connected to the lower end of the water tank (601), and the other end of the overflow outlet (606) is connected to one side of the upper end of the water tank (601). A water level observation window (607) is vertically embedded on one side of the housing (101), and the upper and lower ends of the water level observation window (607) are respectively connected to the upper and lower ends of the water tank (601).

2. The intense pulsed light therapy device according to claim 1, characterized in that: The four corners of the lower end of the fixed plate (102) are all fixedly installed with casters (9), and the casters (9) extend to the lower end of the housing (101). The upper two sides of the housing (101) are all fixedly installed with handle brackets (103), and one end of the handle assembly (3) is snapped onto the handle bracket (103).

3. The intense pulsed light therapy device according to claim 2, characterized in that: The handle assembly (3) includes a handle connector (301), which is plugged into the main unit assembly (1). A flexible tube (302) is fixedly installed at one end of the handle connector (301), and a treatment handle (303) is fixedly installed at the other end of the flexible tube (302). The treatment handle (303) is snapped onto the handle holder (103). The handle assembly (3) includes two parts, which are located on both sides of the main unit assembly (1). The handle assembly (3) is divided into an HR treatment handle and an SR treatment handle. The wavelength of the HR treatment handle is 630 to 1200 nm, the spot area is 16*57 mm, and the upper limit of energy density is 45 J / cm². 2 The SR treatment handpiece has a wavelength of 560 to 1200 nm, a spot area of ​​8*34 mm, and an upper limit of energy density of 40 J / cm². 2 .

4. The intense pulsed light therapy device according to claim 3, characterized in that: A power supply assembly (104) is fixedly installed on the upper part of the fixed plate (102), and a main control board (105) is fixedly installed on the upper part of the power supply assembly (104). The main control board (105) is electrically connected to the display screen (2), and the key switch (4) and the emergency stop switch (5) are both electrically connected to the power supply assembly (104). A capacitor assembly (106) is fixedly installed on the lower part of the fixed plate (102), and a handle plug (107) is fixedly installed on both sides of the capacitor assembly (106). The handle connector (301) is plugged into the handle plug (107).

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