CN212490135U - Laser therapy apparatus and laser therapy system - Google Patents

Abstract

The utility model provides a laser therapy apparatus and laser therapy system, include: a laser emitting a laser beam; a photodetector configured to receive the signal light; a first optical fiber including a first optical fiber exit end configured to receive the laser beam and to exit the laser beam from the first optical fiber exit end; the starting switch is electrically connected with the laser and is configured to control the laser to be turned on or off according to a control instruction; and the micro control unit is electrically connected with the photoelectric detector and the starting switch, and is configured to send the control instruction according to the intensity of the signal light detected by the photoelectric detector, so that the starting switch controls the laser to be turned on when the intensity of the signal light is greater than a preset value, and the starting switch controls the laser to be turned off when the intensity of the signal light is less than or equal to the preset value. The utility model discloses in order to realize preventing that the endoscope from damaging because of laser beam's shining, protected the endoscope.

Description

Laser therapy apparatus and laser therapy system

Technical Field

The utility model relates to the technology of medical equipment, in particular to a laser therapy apparatus and a laser therapy system.

Background

The medical laser fiber is matched with an endoscope to perform the operation. Before operation, the optical fiber needs to be entered into the endoscope, and after operation, the optical fiber needs to be withdrawn from the endoscope. In the process of entering and exiting the endoscope, if the laser therapeutic machine just emits laser, the laser can hit the endoscope to damage the endoscope because the light emitting end of the optical fiber is just positioned in the endoscope. The endoscope is a precise and expensive instrument, and the damage of the endoscope by optical fibers causes great economic loss to hospitals.

The existing medical laser therapeutic machine device does not protect the endoscope from damaging the optical fiber.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a laser therapy apparatus and laser therapy system to the realization prevents that the endoscope from damaging because of laser beam's shining, has protected the endoscope.

In a first aspect, an embodiment of the present invention provides a laser therapy apparatus, including:

a laser emitting a laser beam;

a photodetector configured to receive the signal light;

a first optical fiber including a first optical fiber exit end configured to receive the laser beam and to exit the laser beam from the first optical fiber exit end;

the starting switch is electrically connected with the laser and is configured to control the laser to be turned on or off according to a control instruction;

and the micro control unit is electrically connected with the photoelectric detector and the starting switch, and is configured to send the control instruction according to the intensity of the signal light detected by the photoelectric detector, so that the starting switch controls the laser to be turned on when the intensity of the signal light is greater than a preset value, and the starting switch controls the laser to be turned off when the intensity of the signal light is less than or equal to the preset value.

Optionally, the method further comprises:

a transflective unit located on an emitting optical path of the laser, configured to transmit at least a portion of the laser beam and reflect at least a portion of the signal light;

the signal light is projected to the transflective unit through one end of the first optical fiber far away from the emergent end of the first optical fiber.

Optionally, the transflective unit includes a mirror configured to transmit 900nm to 2200nm of light and reflect 400nm to 700nm of light.

Optionally, the transflective unit includes a transflective film or a beam splitter prism.

Optionally, the method further comprises:

a second optical fiber including a second optical fiber exit end configured to receive the signal light and project the signal light to the photodetector via an end of the second optical fiber remote from the second optical fiber exit end.

Optionally, the first fiber exit end is adjacent to the second fiber exit end.

Optionally, the photoelectric detector further comprises an analog-to-digital conversion unit, wherein one end of the analog-to-digital conversion unit is electrically connected with the photoelectric detector, and the other end of the analog-to-digital conversion unit is electrically connected with the micro control unit.

In a second aspect, an embodiment of the present invention provides a laser therapy system, including the laser therapy apparatus of the first aspect, and an endoscope;

the endoscope comprises an endoscope channel, a first optical fiber is movably connected with the endoscope, and the first optical fiber can move back and forth in the endoscope channel.

Optionally, the endoscope further comprises a light emitting diode located at the front end of the endoscope;

wherein the first optical fiber moves toward a front end of the endoscope when the first optical fiber enters the endoscope channel.

The embodiment of the utility model provides a laser therapy apparatus includes photoelectric detector, starting switch and little the control unit. The photoelectric detector detects the intensity of the detectable signal light and transmits the intensity information of the signal light to the micro control unit, and the micro control unit sends a control instruction to the starting switch. When the intensity of the signal light is greater than the preset value, the first optical fiber is positioned outside an endoscope channel of the endoscope, at the moment, under the instruction of a control instruction, the starting switch controls the laser to be started, and the laser can emit laser beams. When the intensity of the signal light is smaller than or equal to the preset value, the first optical fiber is located in an endoscope channel of the endoscope, at the moment, under the instruction of the control instruction, the switch is started to control the laser to be turned off, the laser cannot emit laser beams, the laser beams are prevented from irradiating the endoscope channel of the endoscope, and therefore the endoscope is prevented from being damaged due to the irradiation of the laser beams, and the endoscope is protected.

Drawings

Fig. 1 is a schematic structural view of a laser therapy apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural view of another laser therapeutic apparatus according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a laser treatment system according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another laser treatment system according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Fig. 1 is a schematic structural diagram of a laser therapy apparatus according to an embodiment of the present invention, and referring to fig. 1, the laser therapy apparatus can emit laser light, for example, to perform a minimally invasive surgery through an optical fiber. Common laser therapy machines may include, for example, 980 red, 1470 semiconductor, holmium and thulium doped laser therapy machines. The laser therapy machine comprises a laser 10, a photodetector 20, a first optical fiber 31, a start switch 40 and a micro control unit 50. The laser 10 emits a laser beam. The photodetector 20 is configured to receive signal light, which may be, for example, light emitted from a light source inside a human body at the time of performing an operation, light emitted from a specially provided light source, or light emitted from an endoscope at the time of using a laser therapy apparatus in cooperation with the endoscope. The first optical fiber 31 includes a first fiber exit end 311, and the first optical fiber 31 is configured to receive the laser beam and exit the laser beam from the first fiber exit end 311. The laser beam can be emitted from the first fiber emitting end 311 to the lesion site of the human body, for example, to perform operations such as cutting the lesion tissue of the human body. The start switch 40 is electrically connected to the laser 10, and the start switch 40 is configured to control the laser 10 to be turned on or off according to a control command. The micro control unit 50 is electrically connected to the photodetector 20 and the start switch 40, and the micro control unit 50 is configured to issue a control command according to the intensity of the signal light detected by the photodetector 20, so that the start switch 40 controls the laser 10 to be turned on when the intensity of the signal light is greater than a preset value, and the start switch 40 controls the laser 10 to be turned off when the intensity of the signal light is less than or equal to the preset value.

The embodiment of the utility model provides a laser therapy apparatus includes photoelectric detector 20, starting switch 40 and little the control unit 50. The photodetector 20 detects the intensity of the signal light, and transmits the intensity information of the signal light to the micro control unit 50, and the micro control unit 50 sends a control command to the start switch 40. When the intensity of the signal light is greater than the preset value, the first optical fiber 31 is located outside an endoscope channel of the endoscope, and at this time, under the instruction of the control instruction, the start switch 40 controls the laser 10 to be turned on, and the laser 10 can emit a laser beam. When the intensity of the signal light is less than or equal to the preset value, the first optical fiber 31 is located in the endoscope channel of the endoscope, at this time, under the instruction of the control instruction, the start switch 40 controls the laser 10 to be turned off, the laser 10 cannot emit the laser beam, the laser beam is prevented from irradiating the endoscope channel of the endoscope, and therefore the endoscope is prevented from being damaged due to the irradiation of the laser beam, and the endoscope is protected.

Optionally, referring to fig. 1, the laser therapy apparatus further includes a transflective unit 60, the transflective unit 60 is located on an emission optical path of the laser 10, and the transflective unit 60 is configured to transmit at least a portion of the laser beam and reflect at least a portion of the signal light. The signal light is projected to the transflective unit 60 through one end of the first optical fiber 31 away from the first optical fiber exit end 311. And then may be reflected by the transflective unit 60 to the photodetector 20. In the embodiment of the present invention, the laser therapy apparatus further includes a transflective unit 60, so that the laser beam emitted from the laser 10 can be emitted from the first fiber emitting end 311 of the first fiber 31 after being transmitted through the transflective unit 60. The signal light can be guided by the same first optical fiber 31 to irradiate the transflective unit 60 and be reflected by the transflective unit 60 to the photoelectric detector 20, so that the number of components is reduced, the size of the laser therapeutic machine is reduced, and the cost is reduced. In addition, because the space in the endoscope channel is limited, the laser beam and the signal light are transmitted by using the same first optical fiber 31, so that the occupation of the endoscope channel space can be reduced, and a sufficient space is reserved for the operation of backwater and the like of the endoscope channel.

In other embodiments, the laser therapy machine further comprises a transflective unit 60, the transflective unit 60 being located in an emission path of the laser 10, the transflective unit 60 being configured to reflect at least part of the laser beam and to transmit at least part of the signal light.

Alternatively, referring to fig. 1, the transflective unit 60 includes a mirror configured to transmit light of 900nm to 2200nm and reflect light of 400nm to 700 nm. The embodiment of the utility model provides an in, laser beam's wavelength can be for example 900nm ~ 2200nm, and signal light's wavelength can be for example 400nm ~ 700nm, and the unit 60 that reflects totally sees through laser beam's energy to and the energy of totally reflected signal light, thereby increased laser beam and signal light's luminous intensity, improved light utilization ratio.

Illustratively, the reflector can be coated to transmit 900 nm-2200 nm light and reflect 400 nm-700 nm light. The coated film layer may be, for example, one surface of the mirror, i.e., one surface of the mirror.

Alternatively, referring to fig. 1, the transflective unit 60 includes a transflective film or a beam splitter prism. When the laser beam irradiates the semi-transparent and semi-reflective film, one part of the laser beam can penetrate through the semi-transparent and semi-reflective film, and the other part of the laser beam can be reflected by the semi-transparent and semi-reflective film. When the signal light irradiates the transflective film, a part of the signal light can transmit through the transflective film, and another part of the signal light can be reflected by the transflective film. The optical reflection performance and the optical transmission performance of the beam splitter prism are similar to those of the semi-transparent and semi-reflective film, and are not described in detail herein.

Fig. 2 is a schematic structural diagram of a laser therapy apparatus according to an embodiment of the present invention, referring to fig. 2, the laser therapy apparatus further includes a second optical fiber 32, and the second optical fiber 32 includes a second optical fiber exit end 321. The second optical fiber 32 is configured to receive the signal light and project the signal light to the photodetector 20 via an end of the second optical fiber 32 away from the second optical fiber exit end 321. In the embodiment of the present invention, the laser therapy apparatus further includes the second optical fiber 32, so that the laser beam emitted from the laser 10 is emitted from the first optical fiber emitting end 311 of the first optical fiber 31. The signal light may be guided by the second optical fiber 32 to irradiate to the photodetector 20.

Alternatively, referring to fig. 2, the first fiber exit end 311 is adjacent to the second fiber exit end 321. That is to say, the first fiber emitting end 311 and the second fiber emitting end 321 are disposed adjacent to each other, so that the position of the second fiber emitting end 321 is very close to the position of the first fiber emitting end 311, and the intensity of the signal light at the position of the second fiber emitting end 321 is close to the intensity of the signal light at the position of the first fiber emitting end 311, so that the intensity of the signal light transmitted by the second fiber 32 and projected to the photodetector 20 can accurately determine whether the first fiber 31 is located inside or outside the endoscope channel of the endoscope.

Illustratively, referring to fig. 2, the first optical fiber 31 is a medical laser optical fiber, which is an optical fiber dedicated to laser treatment of minimally invasive surgery. The transmission power of the first optical fiber 31 can reach 150W, and the core diameter of the optical fiber is 200-. The second optical fiber 32 may also be a medical laser fiber.

Optionally, referring to fig. 1 and 2, the laser therapy apparatus further includes an analog-to-digital conversion unit 70, one end of the analog-to-digital conversion unit 70 is electrically connected to the photodetector 20, and the other end of the analog-to-digital conversion unit 70 is electrically connected to the micro control unit 50. The analog-to-digital conversion unit 70 converts an analog signal generated by the photodetector 20 from the signal light into a digital signal, and transfers the digital signal to the micro control unit 50.

Illustratively, referring to fig. 1 and 2, the photodetector 20 may include, for example, a photodiode that generates a photocurrent according to the received signal light, and illustratively, the greater the intensity of the signal light, the greater the generated photocurrent, and the smaller the intensity of the signal light, the smaller the generated photocurrent.

The embodiment of the utility model also provides a laser treatment system, which comprises the laser treatment machine and the endoscope 80 in the embodiment. Endoscope 80 may be passed into the body through a natural orifice of the body, or through a small surgical incision. The endoscope 80 includes an endoscope channel 81, the first optical fiber 31 is movably connected with the endoscope 80, and the first optical fiber 31 can move back and forth in the endoscope channel 81. The extending direction of the first optical fiber 31 in the endoscope channel 81 is the same as the extending direction of the endoscope channel 81. In the embodiment of the present invention, the laser therapy system includes the laser therapy apparatus in the above-mentioned embodiment, thereby preventing the laser beam from irradiating into the endoscope channel 81 of the endoscope 80, preventing the endoscope 80 from being damaged by the irradiation of the laser beam, and protecting the endoscope 80.

Optionally, referring to FIG. 3, endoscope 80 also includes light emitting diodes 82, light emitting diodes 82 being located at the forward end of endoscope 80. When the first optical fiber 31 enters the endoscope channel 81, the first optical fiber 31 moves toward the distal end of the endoscope 80. In the embodiment of the present invention, the signal light emitted by the light emitting diode 82 in the endoscope 80 is detected by the first optical fiber 31, and the signal light emitted by the light emitting diode 82 is transmitted to the photodetector 20.

Illustratively, referring to fig. 3, during operation, when the first optical fiber 31 enters the endoscope channel 81 of the endoscope 80, the first optical fiber exit end 311 is relatively far away from the light emitting diode 82 (and the light of the light emitting diode 82 is irradiated in a direction away from the endoscope 80), the signal light emitted by the light emitting diode 82 detected by the first optical fiber 31 is very weak (almost no), and as the first optical fiber 31 continuously enters the endoscope channel 81, the first optical fiber 31 is closer to the light emitting diode 82, and when the first optical fiber 31 just passes through the endoscope channel 81, the signal light emitted by the light emitting diode 82 detected at this time is suddenly stronger. The first optical fiber 31 detects the signal light and transmits the signal light to the laser therapeutic machine in real time. Firstly, the returned signal light is transmitted to the transflective unit 60 along the first optical fiber 31, and enters the photoelectric detector 20 after being reflected by the transflective unit 60, the photoelectric detector 20 converts the light signal into an electrical signal after detecting the electrical signal, and enters the micro control unit 50 after passing through the analog-to-digital conversion unit 70, and the micro control unit 50 makes a control instruction by judging the size of the signal light, and can instruct the start switch 40 to turn on or off the laser 10. In the laser treatment system provided by the embodiment of the present invention, when the detected signal is a weak small signal, the instruction from the micro control unit 50 to the start switch 40 is "off", that is, the laser 10 cannot emit a laser beam; when the detected signal light is a strong signal, the micro control unit 50 instructs the start switch 40 to be "on", i.e. the laser 10 can emit a laser beam. Similarly, when the first optical fiber 31 exits from the inside of the human body through the endoscope channel 81 of the endoscope 80, the signal light emitted by the light emitting diode 82 detected by the photodetector 20 is weakened by intensity, and the micro control unit 50 gives a corresponding instruction to the start switch 40 according to the detected signal light intensity, so that no laser beam is emitted when the first optical fiber emitting end 311 is in the endoscope channel 81 of the endoscope 80, and the endoscope 80 is prevented from being damaged by the laser beam. That is, the laser treatment system can automatically control the first optical fiber 31 not to emit the laser beam when the first optical fiber emitting end 311 is on the inner wall of the endoscope in real time, and the first optical fiber 31 can emit the laser beam when the first optical fiber emitting end 311 is outside the inner wall of the endoscope. Because the embodiment of the utility model provides a laser treatment system, for a real-time detection, automatic control's system consequently can avoid the people to maloperation, not only safe and reliable, also convenient intelligence.

Illustratively, the light emitting diode 82 may emit visible light having a wavelength of 400-700 nm.

Fig. 4 is a schematic structural diagram of another laser treatment system according to an embodiment of the present invention, and referring to fig. 4, the laser treatment system includes a laser treatment machine and an endoscope 80. The laser therapeutic machine comprises a laser 10, a photoelectric detector 20, a first optical fiber 31, a starting switch 40, a micro control unit 50 and a second optical fiber 32, wherein the second optical fiber 32 comprises a second optical fiber outgoing end 321. The second optical fiber 32 is configured to receive the signal light and project the signal light to the photodetector 20 via an end of the second optical fiber 32 away from the second optical fiber exit end 321. The endoscope 80 includes an endoscope channel 81, the first optical fiber 31 is movably connected with the endoscope 80, and the first optical fiber 31 can move back and forth in the endoscope channel 81.

Illustratively, referring to FIG. 4, the second optical fiber 32 is movably coupled to an endoscope 80, and the second optical fiber 32 is movable back and forth within an endoscope channel 81. The first fiber exit end 311 is adjacent to the second fiber exit end 321. The first fiber exit end 311 and the second fiber exit end 321 can move simultaneously in the endoscope channel 81, and the first fiber exit end 311 and the second fiber exit end 321 can be kept relatively stationary. When the first fiber emitting end 311 and the second fiber emitting end 321 are located in the endoscope channel 81, the intensity of the signal light received by the second fiber 32 is weak, and the micro control unit 50 controls the laser 10 not to emit the laser beam. When the first fiber emitting end 311 and the second fiber emitting end 321 are located outside the endoscope channel 81, the intensity of the signal light received by the second fiber 32 is relatively strong, and the micro control unit 50 controls the laser 10 to emit a laser beam. It should be noted that the first fiber exit end 311 being located outside the endoscope channel 81 may mean that the first fiber 31 passes through the endoscope channel 81, and the first fiber exit end 311 being located outside the endoscope channel 81. Similarly, the second fiber exit end 321 being outside the endoscope channel 81 can mean that the second fiber 32 passes through the endoscope channel 81 and the second fiber exit end 321 is outside the endoscope channel 81.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (9)

1. A laser therapy machine, comprising:

a laser emitting a laser beam;

a photodetector configured to receive the signal light;

a first optical fiber including a first optical fiber exit end configured to receive the laser beam and to exit the laser beam from the first optical fiber exit end;

the starting switch is electrically connected with the laser and is configured to control the laser to be turned on or off according to a control instruction;

and the micro control unit is electrically connected with the photoelectric detector and the starting switch, and is configured to send the control instruction according to the intensity of the signal light detected by the photoelectric detector, so that the starting switch controls the laser to be turned on when the intensity of the signal light is greater than a preset value, and the starting switch controls the laser to be turned off when the intensity of the signal light is less than or equal to the preset value.

2. The laser therapy machine of claim 1, further comprising:

a transflective unit located on an emitting optical path of the laser, configured to transmit at least a portion of the laser beam and reflect at least a portion of the signal light;

the signal light is projected to the transflective unit through one end of the first optical fiber far away from the emergent end of the first optical fiber.

3. The laser therapy machine of claim 2, wherein the transflective unit comprises a mirror configured to transmit 900nm to 2200nm of light and reflect 400nm to 700nm of light.

4. The laser therapy apparatus according to claim 2, wherein the transflective unit includes a transflective film or a beam splitter prism.

5. The laser therapy machine of claim 1, further comprising:

a second optical fiber including a second optical fiber exit end configured to receive the signal light and project the signal light to the photodetector via an end of the second optical fiber remote from the second optical fiber exit end.

6. The laser therapy machine of claim 5, wherein the first fiber exit end is adjacent to the second fiber exit end.

7. The laser therapy machine according to claim 1, further comprising an analog-to-digital conversion unit, one end of the analog-to-digital conversion unit being electrically connected to the photodetector, the other end of the analog-to-digital conversion unit being electrically connected to the micro control unit.

8. A laser treatment system comprising the laser treatment machine of any one of claims 1-7, and an endoscope;

the endoscope comprises an endoscope channel, a first optical fiber is movably connected with the endoscope, and the first optical fiber can move back and forth in the endoscope channel.

9. The laser therapy system according to claim 8, wherein the endoscope further comprises a light emitting diode located at a forward end of the endoscope;

wherein the first optical fiber moves toward a front end of the endoscope when the first optical fiber enters the endoscope channel.

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