CN117770946A - Laser operation endoscope for prostate - Google Patents

Abstract

The invention relates to a laser surgical endoscope for a prostate, which comprises an outer sheath component, an inner core component and a laser component, wherein the outer sheath component is provided with a main channel, the inner core component comprises a visual unit and a liquid injection channel, the visual unit is arranged at the front end of the inner core component, the inner core component is suitable for being inserted into the main channel, a liquid outlet channel is formed between the inner core component and the outer sheath component, the laser component is suitable for being inserted into the liquid injection channel, the laser component is provided with a laser channel, and a laser is suitable for being arranged in the laser channel and extends out of the inner core component to perform corresponding surgical operation at a focus.

Description

Laser operation endoscope for prostate

Technical Field

The invention relates to the field of medical instruments, in particular to a laser surgery endoscope for a prostate.

Background

Transurethral prostatectomy is a safer, more effective and less painful surgical procedure for patients. It refers to insertion of an resectoscope through the urethra, and removal of the portion of the prostate protruding into the urethra under direct vision. The procedure is also basically similar, and the resectoscope is advanced from the external orifice of the urethra, along the urethra, into the bladder, and probing the bladder. If a tumor is present, or a ureteral cyst may be resected. The electrotome is retracted to the prostate part, so that the condition of the prostate can be probed. If there is prostatic hyperplasia, bladder neck hardening, etc., it can be used for electrotomy or enucleation.

The traditional resectoscope has a plurality of defects, and the success rate of the operation and the discomfort of a patient are easily affected in the operation process. In addition, the traditional resectoscope body is thicker, and is difficult to put into a patient, and the urethral injury or the postoperative urethral stricture can be seriously caused. In addition, in the operation process, the water inlet and outlet ratio of the resectoscope is not proper, the pressure in the bladder is difficult to control, and the bladder of a patient is damaged.

In the operation process, the liquid and tissue fragments to be sucked out, the traditional electrotome is easy to cause the unsmooth drainage when discharging the poured liquid and tissue fragments, the serious blockage can be caused, the operation is influenced, and the water mist is easy to be generated between the lens and the camera, so that the visual field of medical staff during the operation is influenced. In addition, the traditional resectoscope has a complex structure, and has high technical and experience requirements for medical staff during operation. And when traditional electron microscope cuts, the electrode front end is in the sheath, makes the slider on the manipulator carry out reciprocating motion through the manipulator handle, realizes cutting, and the operation degree of difficulty is high, and is effectual.

Disclosure of Invention

An advantage of the present invention is that it provides a laser surgical endoscope for the prostate of a patient that is provided with a laser assembly for treating the prostate of the patient by placing a laser.

Another advantage of the present invention is that it provides a laser surgical endoscope for prostate, wherein the laser assembly of the laser surgical endoscope for prostate is provided with a laser channel, the surgical laser channel is communicated with the laser port at the tail end, and the laser is in a straight-out structure, so that the operation is convenient, and the damage of the laser is avoided.

Another advantage of the present invention is that it provides a laser surgical endoscope for the prostate that is relatively thin, and that has a sheath assembly and an inner core assembly that can be replaced and used in combination for placement in a patient to reduce discomfort or damage to the patient.

Another advantage of the present invention is that it provides a laser surgical endoscope for the prostate that maintains a specific ratio between the infusion channel and the discharge channel to ensure the stability of the pressure in the bladder, avoiding high pressure in the bladder and poor bladder filling.

Another advantage of the present invention is that it provides a laser surgical endoscope for the prostate, wherein the front end of the inner core assembly of the laser surgical endoscope for the prostate is provided with an imaging unit and an illumination unit, so that the field of view is clear during the surgery, and fog is not easy to occur.

Another advantage of the present invention is that it provides a laser surgical endoscope for the prostate that can be replaced with a tissue morcellator without the need to replace the imaging unit and the illumination unit.

Another advantage of the present invention is that it provides a laser surgical endoscope for the prostate that, when in use, is minimally disturbed by the laser light, which is beneficial for maintaining a clear field of view.

Another advantage of the present invention is that it provides a laser surgical endoscope for the prostate that can be rotated relative to each other between the outer sheath assembly, the inner core assembly, and the laser assembly, facilitating manipulation and facilitating surgery.

Another advantage of the present invention is that it provides a laser surgical endoscope for the prostate that has a laser assembly that can control the back and forth movement of the laser by the fingers of the medical staff, which is convenient to operate and advantageous for simplifying the procedure.

Another advantage of the present invention is that it provides a laser surgical endoscope for the prostate that has a sealing unit for ensuring that the rear end of the outer sheath assembly is hermetically connected to the inner core assembly.

Another advantage of the present invention is that it provides a laser surgical endoscope for the prostate that has a sealing and locking device at the fiber port to ensure the stability of the laser.

Another advantage of the present invention is that it provides a laser surgical endoscope with a pre-determined size for the outer diameter of the outer sheath assembly and the outer diameter of the inner core assembly, which is thinner overall and more convenient to place.

Another advantage of the present invention is that it provides a laser surgical endoscope for the prostate that is simple in structure and not easily damaged.

In accordance with another aspect of the present invention, there is further provided a laser surgical endoscope for a prostate, the laser surgical endoscope for a prostate comprising:

an outer sheath assembly;

an inner core assembly detachably sleeved inside the outer sheath assembly; and

the laser component is detachably sleeved inside the inner core component and is provided with a laser channel, and a laser is suitable for being arranged in the laser channel and extends out of the inner core component to perform corresponding operation on a focus.

According to one embodiment of the present invention, the laser assembly includes a telescoping portion and a telescoping control portion, the telescoping control portion being connected to a rear end of the telescoping portion.

According to one embodiment of the present invention, the telescopic control part includes a control member, a grip member, a handle ring, and an elastic member, wherein the control member is connected to the grip member through the elastic member, and the handle ring is disposed on the grip member.

According to one embodiment of the present invention, the laser assembly further has a laser port, and the laser port is disposed on the expansion control part and is in communication with the laser channel.

According to an embodiment of the present invention, the laser port is disposed at a rear end of the expansion control part, and the laser passage communicates with the laser port to form an in-line passage.

According to one embodiment of the present invention, the sheath assembly includes a sheath main body portion, a sheath connecting portion, and a sheath front end portion, the sheath connecting portion and the sheath front end portion being disposed at both ends of the sheath main body portion, respectively.

According to one embodiment of the present invention, the sheath front end portion includes a protruding portion protruding from one side of the front end of the sheath main body portion and a recessed portion recessed from the other side of the front end of the sheath main body portion.

According to one embodiment of the invention, wherein the outer sheath assembly further has a main channel extending rearwardly from the outer sheath front end portion to extend through the outer sheath body portion and the outer sheath connecting portion, the inner core assembly is adapted to be disposed within the main channel.

According to one embodiment of the invention, the outer sheath assembly further has a liquid outlet channel and a liquid outlet port, wherein a gap between the outer sheath assembly and the inner core assembly forms the liquid outlet channel when the inner core assembly is adapted to be placed in the main channel, and the liquid outlet port is provided at the outer sheath connecting portion to communicate with the liquid outlet channel.

According to one embodiment of the present invention, the core assembly includes a core main body portion, a core connecting portion, and a core front end portion, the core connecting portion and the core front end portion being disposed at both ends of the core main body portion, respectively.

According to one embodiment of the present invention, the core assembly further has a liquid injection passage extending rearward from the core front end portion so as to penetrate the core main body portion and the core connecting portion, and a liquid injection port provided at the core connecting portion so as to communicate with the liquid injection passage.

According to one embodiment of the invention, the ratio of the liquid injection channel to the liquid outlet channel is set to one-to-two.

According to one embodiment of the invention, the core assembly further comprises a camera unit and at least one illumination unit, the camera unit and the illumination unit being disposed at a front end of the core front end portion.

According to one embodiment of the present invention, the core assembly further includes at least one liquid outlet groove provided at the core front end portion, the liquid outlet groove communicating with the liquid outlet channel.

In accordance with another aspect of the present invention, there is further provided a laser surgical endoscope for a prostate, the laser surgical endoscope for a prostate comprising:

a sheath assembly having a main channel; and

the inner core assembly comprises a visual unit and a liquid injection channel, the visual unit is arranged at the front end of the inner core assembly, the inner core assembly is suitable for being inserted into the main channel, a liquid outlet channel is formed between the inner core assembly and the outer sheath assembly, and a laser assembly is suitable for being inserted into the liquid injection channel and extends out of the inner core assembly to perform corresponding operation at a focus.

Further objects and advantages of the present invention will become fully apparent from the following description and the accompanying drawings.

Drawings

Fig. 1 is a schematic view showing the overall structure of a laser operation endoscope for prostate according to a first preferred embodiment of the present invention.

Fig. 2 is a schematic view showing the overall installation state of a laser surgical endoscope for prostate according to the first preferred embodiment of the present invention.

Fig. 3 is a schematic view illustrating the installation of an outer sheath assembly and an inner core assembly of a laser surgical endoscope for the prostate according to the first preferred embodiment of the present invention.

Fig. 4 is a cross-sectional view of a laser surgical endoscope for the prostate according to the first preferred embodiment of the present invention.

Fig. 5 is one of partial enlarged views of a use state of a laser operation endoscope for prostate according to a first preferred embodiment of the present invention.

Fig. 6 is a second enlarged view of a portion of a use state of a laser surgical endoscope for prostate according to the first preferred embodiment of the present invention.

Fig. 7 is a schematic view showing the overall structure of a laser operation endoscope for prostate according to a second preferred embodiment of the present invention.

Fig. 8 is a schematic view showing an overall installation state of a laser surgical endoscope for prostate according to a second preferred embodiment of the present invention.

Fig. 9 is an enlarged partial schematic view of a laser surgical endoscope for the prostate according to a third preferred embodiment of the present invention.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present invention.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

Embodiment one:

referring to fig. 1 to 6, a laser surgical endoscope for prostate according to a preferred embodiment of the present invention is illustrated. The laser surgical endoscope 1 for the prostate is suitable for transurethral prostatectomy, which is a safer, more effective and less painful surgical method for patients. Specifically, in the present embodiment, the laser surgical endoscope 1 for prostate is inserted through the urethra and the portion of the prostate protruding into the urethra is excised under direct vision. The laser surgical endoscope 1 for prostate may be used in other operations, which is not a limitation of the present invention.

For convenience of explanation, in the present embodiment, an end of the laser operation endoscope 1 to be placed in the patient during use is referred to as a front end of the laser operation endoscope 1, and an end opposite to the front end of the laser operation endoscope 1 is referred to as a rear end of the laser operation endoscope.

Fig. 1 is a schematic view showing the overall structure of the laser operation endoscope 1 for prostate according to the first preferred embodiment of the present invention. In this embodiment, the laser surgical endoscope 1 includes an outer sheath assembly 10, an inner core assembly 20 and a laser assembly 30, wherein the inner core assembly 20 is detachably sleeved inside the outer sheath assembly 10, the laser assembly 30 is detachably sleeved inside the inner core assembly 20, and a laser k is adapted to be mounted on the laser assembly 30 and extend out of the inner core assembly 20 to perform a corresponding surgical operation at a lesion.

In this embodiment, the size of the laser surgical endoscope 1 is reduced and the scope body is thinner than that of a conventional laser surgical endoscope, and the outer sheath assembly 10 and the inner core assembly 20 can be replaced and used together, so as to be placed in a patient, and reduce discomfort or damage to the patient. Specifically, the outer diameter of the outer sheath assembly 10 is set to between 21 and 24Fr, and the outer diameter of the inner core assembly 20 is set to between 15 and 18 Fr. The outer sheath assembly 10 and the inner core assembly 20 may be replaced and used in combination to meet different surgical needs.

Further, the inner core assembly 20 is adapted to rotate from within the outer sheath assembly 10, and the laser assembly 30 may also rotate within the inner core assembly 20 to facilitate adjustment of the field of view or line of sight angle during surgery. The inner core assembly 20 or the laser assembly 30 is rotated, and the outer sheath assembly 10 is kept stationary, thereby avoiding damage to the urethra of the patient.

The sheath assembly 10 includes a sheath main body 11, a sheath connecting portion 12 and a sheath front end portion 13, the sheath connecting portion 12 and the sheath front end portion 13 being provided at the rear end and the front end of the sheath main body 11, respectively, the sheath main body 11 and the sheath front end portion 13 preferably being provided as an integrally molded manufacture. The sheath tip 13 is adapted to open the patient's urethra during surgery to facilitate access of the sheath assembly 10 to the intended lesion. At the time of operation, the sheath tip portion 13 and a part of the sheath body portion 11 enter the patient, and the sheath connecting portion 12 and a part of the sheath body portion 11 remain outside the patient.

The front end portion 13 of the sheath is configured in a duckbill shape, so that the front end portion 13 of the sheath can be conveniently opened to the urethra orifice to enter the preset focus, and on the other hand, the laser surgery endoscope 1 for the prostate can be conveniently used for liquid discharge operation. In other embodiments, the sheath distal end portion 13 may be provided in other shapes, which is not a limitation of the present invention.

Specifically, the sheath front end portion 13 includes a protruding portion 131 and a recessed portion 132, the protruding portion 131 protruding from one side of the front end of the sheath main body portion 11, and the recessed portion 132 recessed from the other side of the front end of the sheath main body portion 11. In other words, the protrusion 131 has a protrusion front end 1311, the recess 132 has a recess end 1321, and the protrusion front end 1311 extends obliquely to the recess end 1321 to form the inclined sheath front end 13, so that the sheath front end 13 can be used to open the urethral orifice into a predetermined focus. In addition, the thickness of the sheath tip 13 gradually increases from the convex tip 1311 toward the concave tip 1321.

The sheath assembly 10 further has a main passage 14, the main passage 14 being provided inside the sheath assembly 10, in other words, the main passage 14 extends rearward from the sheath front end portion 13 so as to penetrate the sheath main body portion 11 and the sheath connecting portion 12. The core assembly 20 is adapted to be disposed within the main channel 14 and rotatable from within the main channel 14.

The sheath assembly 10 further has a liquid outlet passage 15, the liquid outlet passage 15 extending rearward from the sheath front end portion 13 so as to penetrate the sheath main body portion 11 and the sheath connecting portion 12. In addition, the front portions of the main channel 14 and the liquid outlet channel 15 are one channel. That is, the liquid outlet passage 15 is a part of the main passage 14. In other words, a portion of the main channel 14 is occupied by the core assembly 20, and a portion of the main channel 14 not occupied by the core assembly 20 forms the liquid outlet channel 15. Based on this, the liquid outlet passage 15 has a circular ring shape.

The sheath assembly 10 further has a liquid outlet 151, the liquid outlet 151 is disposed at the sheath connecting portion 12 to be communicated with the liquid outlet channel 151, and a perfusion liquid is suitable for entering the liquid outlet channel 151 and discharging from the liquid outlet 151.

The sheath assembly 10 further comprises a sealing unit 16, wherein the sealing unit 16 is disposed on the inner wall of the sheath body 11 to seal the gap between the sheath assembly 10 and the core assembly 20, so as to avoid unstable air pressure and difficult drainage. It should be noted that the liquid outlet 151 is disposed at the front of the sealing unit 16.

The core assembly 20 includes a core main body portion 21, a core connecting portion 22, and a core front end portion 23, the core connecting portion 22 and the core front end portion 23 being provided at the rear end and the front end of the core main body portion 21, respectively, wherein the core main body portion 21 and the core front end portion 23 are preferably provided as an integrally molded manufacture. Wherein the inner core body portion 21 and the inner core front end portion 23 are adapted to be nested within the main channel 14 of the outer sheath assembly 10. Specifically, when the inner core main body portion 21 and the inner core front end portion 23 are adapted to be fitted into the main channel 14 of the outer sheath assembly 10, the inner core connecting portion 22 and the outer sheath connecting portion 12 are fixedly connected to each other to ensure stability between the outer sheath assembly 10 and the inner core assembly 20. In addition, it is worth mentioning that the core main body portion 21 and the core front end portion 23 are not concentric in structure, that is, the centers of the core main body portion 21 and the core front end portion 23 are not on a straight line.

The core assembly 20 also has a fluid injection passage 24, the fluid injection passage 24 extending rearward from the core front end portion 23 to extend through the core body portion 21 and the core attachment portion 22. In addition, the laser assembly 30 is adapted to be inserted into the injection channel 24. In other words, a portion of the liquid injection channel 24 is occupied by the laser assembly 30, and a portion of the liquid injection channel 24 that is unoccupied by the laser assembly 30 is used for liquid discharge operation. Based thereon, the laser channel 30 and the infusion fluid both enter from within the infusion channel 24 of the core assembly 20.

The core assembly 20 further has a filling port 241, and the filling port 241 is disposed at the core connecting portion 22 to communicate with the filling channel 24, that is, the filling fluid is adapted to enter the filling channel 24 from the filling port 241 and then to the predetermined focus.

It should be noted that, in the present embodiment, the diameter of the core front end portion 23 is larger than the diameter of the core main body portion 21, and the front end of the core front end portion 23 protrudes from the sheath front end portion 13 when the core assembly 20 is inserted into the main channel 14 of the sheath assembly 10. Specifically, the front end of the core front end portion 23 protrudes from the concave end 1321 of the concave portion 132, so that a distance difference is formed between the front end of the core front end portion 23 and the concave end 1321 of the concave portion 132, so that the perfusate enters into the liquid outlet channel 15.

It is worth mentioning that, when the traditional prostate operation endoscope is used for treatment, the urethra is small in size and has elasticity, so that the prostate operation endoscope is easy to be wrapped by the urethra, and the urethra of a patient is damaged and the drainage is not smooth. Compared with the traditional prostate operation endoscope, when the prostate laser operation endoscope 1 is used, the perfusate enters the liquid outlet channel 14 from the front end of the prostate laser operation endoscope 1 and cannot be wrapped by the urethra, and the perfusate is discharged smoothly.

More specifically, in the present embodiment, the ratio of the injection channel 24 to the outlet channel 15 is set to be 1 to 2, that is, the ratio of the cross-sectional areas of the injection channel 24 to the outlet channel 15 is set to be 1 to 2.

The core assembly 20 further includes a vision unit 25, and the vision unit 25 is disposed at the front end of the core front end portion 23, so that the medical staff can observe the condition of the patient after the laser surgery endoscope 1 is introduced into the patient, so that the surgery is performed in a visible state. The visualization unit 25 comprises an imaging unit 251 and at least one illumination unit 252, the illumination unit 252 providing a sufficiently bright field of view, the imaging unit 251 being adapted to communicate the field of view in the patient to the outside for viewing by a healthcare worker.

The core assembly 20 further has a line port 26 provided to the core connecting part 22, specifically, the line port 26 is recessed inwardly from the surface of the core connecting part 22 so as to facilitate the wiring of the camera unit 251 and the illumination unit 252.

Based on this, the laser surgical endoscope for prostate 1 has functions of visualization, illumination, perfusion, and suction in the present embodiment. Stated another way, the laser surgical endoscope 1 integrates visualization, illumination, perfusion, and suction. The visualization unit 25 is adapted to provide front-end illumination and the infusion channel 24 is adapted to be fed with an infusion solution. The outlet channel 15 is adapted to absorb the perfusate being perfused. Stated another way, the medical staff introduces the perfusate into the patient through the liquid injection channel 24, and clamps air bubbles, body tissues, etc. generated by the operation, and discharges the perfusate injected from the patient to the outside through the liquid outlet channel 15. The visual field is clear in the operation process, and the fog is not easy to occur.

The laser assembly 30 includes a telescopic control portion 31, a telescopic portion 32 and a laser passage 33, the telescopic control portion 31 is connected to the rear end of the telescopic portion 32, the laser passage 33 is disposed in the telescopic control portion 31 and the telescopic portion 32, that is, the laser passage 33 is recessed from the front end of the telescopic portion 32 to extend through the telescopic control portion 31 and the telescopic portion 32. In other words, the expansion and contraction control portion 31 and the expansion and contraction portion 32 each mold a part of the laser passage 33, respectively. The laser light k may enter the patient through the laser channel 33 to ablate the hyperplastic portion of the prostate.

Specifically, the medical staff may control the telescopic part 32 to be telescopic through the telescopic control part 31, so as to control the distance that the laser extends out of the core front end part 23 of the core assembly 20.

More specifically, the telescopic control portion 31 includes a control member 311, a grip member 312, a handle ring 313, and an elastic member 314, wherein the control member 311 is connected to the grip member 312 through the elastic member 314, and the handle ring 313 is disposed on the grip member 312. In use, the index finger of the medical staff is suitable for being placed on the control member 311, the thumb of the medical staff is suitable for being placed on the handle ring 313, and the handle ring 313 is pushed forward, and the elastic member 314 is deformed to drive the gripping member 312 to move forward. The laser k is fixedly connected in the holding piece 312, so that the laser k is driven to move to a preset focus for operation. It should be understood by those skilled in the art that the control member 311 is only one embodiment of the present invention and is not a limitation of the present invention.

The laser assembly 30 further has a laser port 331, the laser port 331 is disposed on the telescopic control portion 31, preferably, the laser port 331 is disposed on the rear end of the telescopic control portion 31, that is, the laser port 331 is concavely extended forward from the rear end of the telescopic control portion 31 to communicate with the laser channel 31, so that the laser k enters into the patient through the laser channel 31 for performing the excision operation. In other words, the laser channel 31 is in a straight state, and the laser k is in a straight structure, and based on this, the laser channel 31 is set to be a straight channel, so that the operation can be facilitated, and the damage of the laser k can be avoided.

In this embodiment, the laser surgical endoscope 1 for prostate has little interference from the laser, specifically, on one hand, the laser is transmitted through an electrical signal, and some transverse lines appear when the laser resects the hyperplasia of the prostate, so a shielding effect needs to be set on a chip of the laser; on the other hand, when the laser is implemented as a colored laser, a filter lens is required to be arranged at the front end of the laser; in addition, some changes are made in the algorithm settings of the camera unit 251, for example, they are attenuated in some lighter places and enhanced in some darker places. In this regard, it will be appreciated by those skilled in the art that this is not a limitation of the present invention.

In this application, the laser assembly 30 further includes a locking device 34, where the locking device 34 is disposed at the front end of the telescopic portion 32, and when the laser is installed in the laser channel 33, the laser can be fixed by the locking device 34, and since the diameter of the laser channel 33 is greater than the outer diameter of the laser, the laser needs to be fixed in the laser channel 33 by the locking device 34, so that the laser is prevented from shaking in the laser channel 33, which has an effect on the excision of the surgery.

It should be noted that, in this embodiment, the laser prostate surgical endoscope 1 may also be used in combination with a tissue morcellator, that is, the tissue morcellator is adapted to be removably mounted within the infusion channel 24 of the core assembly 20 to morcellate tissue at a lesion. In other words, a portion of the infusion path 24 is occupied by the tissue morcellator, and a portion of the infusion path 24 that is unoccupied by the tissue morcellator is used for drainage operations. Based thereon, both the tissue morcellator and the perfusate enter from within the infusion channel 24 of the core assembly 20 to meet different surgical needs.

The surgical instrument can be connected with the laser k (such as blue laser, holmium laser, thulium laser and the like) or a tissue crusher, an electric cutter, an enucleation tool, a ligature tool and the like, has wider application range and can meet more requirements.

In summary, the laser surgical endoscope 1 for the prostate is provided with the laser assembly 30 for treating the prostate of a patient by implanting the laser. The laser surgical endoscope 1 for the prostate integrates visualization, illumination, perfusion, suction and laser excision, so that the surgical operation is convenient, the surgical difficulty is reduced, and the uncomfortable feeling of a patient is reduced.

The operation method of the laser operation endoscope 1 for prostate will be exemplarily described below.

Embodiment two:

a second preferred embodiment of the present invention provides a laser surgical endoscope 1A for the prostate, as illustrated in fig. 7 to 8. The laser surgical endoscope for prostate 1A in the present preferred embodiment is implemented as a modification of the first preferred embodiment described above. In this embodiment, the laser assembly 30A and the sheath assembly 10A are changed compared to the first preferred embodiment.

Fig. 7 is a schematic view showing the overall structure of a laser operation endoscope 1A for prostate according to a second preferred embodiment of the present invention. Specifically, the laser surgical endoscope 1A for the prostate comprises an outer sheath assembly 10A, an inner core assembly 20A and a laser assembly 30A, wherein the inner core assembly 20A is detachably sleeved inside the outer sheath assembly 10A, the laser assembly 30A is detachably sleeved inside the inner core assembly 20A, and the laser assembly 30A is adapted to extend out of the inner core assembly 20A to perform a corresponding surgical operation at a lesion.

Similarly, the sheath assembly 10A includes a sheath main body portion 11A, a sheath connecting portion 12A, and a sheath front end portion 13A, the sheath connecting portion 12A and the sheath front end portion 13A being provided at the rear end and front end of the sheath main body portion 11A, respectively. The sheath tip 13A is adapted to open the patient's urethra during surgery to facilitate access of the sheath assembly 10A to the intended lesion. In the present embodiment, the sheath distal end portion 13A is provided in a circular shape. That is, the sheath body 11A and the sheath distal end portion 13A have the same shape.

The sheath assembly 10A further has a main passage 14A, the main passage 14A being provided inside the sheath assembly 10A, in other words, the main passage 14A extends rearward from the sheath front end portion 13A so as to penetrate the sheath main body portion 11A and the sheath connecting portion 12A. The core assembly 20A is adapted to be disposed within the primary channel 14A and rotatable from within the primary channel 14A.

The sheath assembly 10A further has a liquid outlet passage 15A, and the liquid outlet passage 15A extends rearward from the sheath front end portion 13A so as to penetrate the sheath main body portion 11A and the sheath connecting portion 12A. In addition, the front portions of the main channel 14A and the liquid outlet channel 15A are one channel. That is, the liquid outlet passage 15A is a part of the main passage 14A. In other words, a portion of the main channel 14A is occupied by the core assembly 20A, and a portion of the main channel 14A not occupied by the core assembly 20A forms the liquid outlet channel 15A. Based on this, the liquid outlet passage 15A has a circular ring shape.

The sheath assembly 10A further has a liquid outlet 151A, the liquid outlet 151A is disposed at the sheath connecting portion 12A to be communicated with the liquid outlet channel 151A, and a perfusion liquid is suitable for entering the liquid outlet channel 151A and discharging from the liquid outlet 151A.

In this embodiment, the sheath assembly 10A further has at least one drainage groove 17A, the drainage groove 17A is disposed at the sheath front end portion 13A, and further, the drainage groove 17A extends from the side wall of the sheath front end portion 13A to be recessed inward so as to communicate with the liquid outlet channel 15A.

The core assembly 20A includes a core main body portion 21A, a core connecting portion 22A and a core front end portion 23A, the core connecting portion 22A and the core front end portion 23A being provided at the rear end and front end of the core main body portion 21A, respectively, wherein the core main body portion 21A and the core front end portion 23A are preferably provided as an integrally formed manufacture. Wherein the inner core main body portion 21A and the inner core front end portion 23A are adapted to be sleeved within the main channel 14A of the outer sheath assembly 10A. Specifically, when the inner core main body portion 21A and the inner core front end portion 23A are adapted to be fitted into the main channel 14A of the outer sheath assembly 10A, the inner core connecting portion 22A and the outer sheath connecting portion 12A are fixedly connected to each other to ensure stability between the outer sheath assembly 10A and the inner core assembly 20A.

The core assembly 20A further has a filling channel 24A and a filling port 241A, the filling channel 24A extending rearward from the core front end portion 23A to penetrate the core main body portion 21A and the core connecting portion 22A. A liquid injection port 241A, the liquid injection port 241A being provided to the core connection portion 22A so as to communicate with the liquid injection passage 24A. In addition, the laser assembly 30A is adapted to be inserted into the injection channel 24A. In other words, a portion of the liquid injection channel 24A is occupied by the laser assembly 30A, and a portion of the liquid injection channel 24A that is unoccupied by the laser assembly 30A is used for liquid discharge operation. Based thereon, both the laser channel 30A and the infusion fluid enter from within the infusion channel 24A of the core assembly 20A.

It should be noted that, in the present embodiment, the diameter of the core front end portion 23A is larger than the diameter of the core main body portion 21A, and the front end of the core front end portion 23A protrudes from the sheath front end portion 13A when the core assembly 20A is inserted into the main channel 14A of the sheath assembly 10A. Specifically, the front end of the core front end portion 23A protrudes from the concave end 1321A of the concave portion 132A, so that a distance difference is formed between the front end of the core front end portion 23A and the concave end 1321A of the concave portion 132A, so that the perfusate enters the liquid outlet channel 15A.

The core assembly 20A further includes a visual unit 25A, and the visual unit 25A is disposed at the front end of the core front end portion 23A, so that the medical staff can observe the condition inside the patient after the laser surgery endoscope 1A is introduced into the patient, so that the surgery is performed in a visual state.

The core assembly 20A also has a wire opening 26A provided to the core connecting portion 22A, specifically, the wire opening 26A is recessed inwardly from the surface of the core connecting portion 22A to facilitate routing of the visual element 25A.

In this embodiment, the laser assembly 30A is implemented as a laser adapted to be inserted directly into the infusion channel 24A of the illustrated core assembly 20A, with the hand of a medical practitioner directly controlling the laser assembly 30A into and out of the intended lesion of the patient.

Embodiment III:

a third preferred embodiment of the present invention provides a laser surgical endoscope 1B for the prostate as illustrated in fig. 9. The laser surgical endoscope for prostate 1B in the present preferred embodiment is implemented as a modification of the first preferred embodiment described above. In this embodiment, the core assembly 20B is modified as compared to the first preferred embodiment described above.

In this embodiment, the core assembly 20B further includes at least one liquid outlet groove 27B, the liquid outlet groove 27B is disposed at the core front end portion 23B, and the liquid outlet groove 27B is in communication with the liquid outlet channel 15B. Specifically, in the present embodiment, the liquid outlet groove 27B is recessed inwardly from the peripheral side of the core front end portion 23B so that the perfusate or tissue is discharged from the liquid outlet groove 27B into the liquid outlet channel 15B. That is, the liquid outlet groove 27B increases the area of the front end of the liquid outlet channel 15B, so that the perfusate or tissue can enter more easily, and blockage or the like is not easy to occur. In this embodiment, the liquid outlet groove 27B is disposed at the lower end of the core front end portion 23B in a U shape to maximize the area of the front end of the liquid outlet channel 15B. In other embodiments, the liquid outlet grooves 27B may be provided to extend rearward from the front end of the core front end portion 23B so as to communicate with the liquid outlet passage 15B, and the number of the liquid outlet grooves 27B may be set to three or more. In this regard, it should be understood by those skilled in the art that the arrangement and number of the liquid outlet grooves 27B are not limitations of the present invention.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are by way of example only and are not limiting. The objects of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been shown and described in the examples and embodiments of the invention may be modified or practiced without departing from the principles described.

Claims (15)

1. A laser surgical endoscope for the prostate, comprising:

an outer sheath assembly;

an inner core assembly detachably sleeved inside the outer sheath assembly; and

the laser component is detachably sleeved inside the inner core component and is provided with a laser channel, and a laser is suitable for being arranged in the laser channel and extends out of the inner core component to perform corresponding operation on a focus.

2. The laser surgical endoscope of claim 1, wherein the laser assembly comprises a telescoping portion and a telescoping control portion, the telescoping control portion being connected to a rear end of the telescoping portion.

3. The laser surgical endoscope of claim 2, wherein the telescoping control portion comprises a control member, a grip member, a handle ring, and an elastic member, the control member being connected to the grip member through the elastic member, the handle ring being disposed to the grip member.

4. The laser surgical endoscope of claim 3, wherein the laser assembly further has a laser port disposed in the telescoping control and in communication with the laser channel.

5. The laser surgical endoscope of claim 4, wherein the laser port is provided at a rear end of the telescoping control section, the laser channel communicating with the laser port to form an in-line channel.

6. The laser surgical endoscope for the prostate according to any one of claims 1 to 5, wherein the sheath assembly includes a sheath main body portion, a sheath connecting portion, and a sheath front end portion, the sheath connecting portion and the sheath front end portion being provided at both ends of the sheath main body portion, respectively.

7. The laser surgical endoscope of claim 6, wherein the sheath front end portion includes a protruding portion protruding from one side of the front end of the sheath body portion and a recessed portion recessed from the other side of the front end of the sheath body portion.

8. The laser surgical endoscope of claim 6, wherein the sheath assembly further has a main channel extending rearward from the sheath forward end portion to extend through the sheath body portion and the sheath attachment portion, the inner core assembly being adapted to be disposed within the main channel.

9. The laser surgical endoscope of claim 8, wherein the outer sheath assembly further has a fluid outlet channel and a fluid outlet port, the fluid outlet port being disposed at the outer sheath junction to communicate with the fluid outlet channel, a gap between the outer sheath assembly and the inner core assembly forming the fluid outlet channel when the inner core assembly is adapted to be disposed within the main channel.

10. The laser surgical endoscope of claim 9, wherein the core assembly comprises a core body portion, a core connecting portion, and a core front end portion, the core connecting portion and the core front end portion being disposed at both ends of the core body portion, respectively.

11. The laser surgical endoscope of claim 10, wherein the core assembly further has a fluid injection channel extending rearward from the core front end portion to penetrate the core body portion and the core connection portion, and a fluid injection port provided at the core connection portion to communicate with the fluid injection channel.

12. The laser surgical endoscope of claim 11, wherein the ratio of the infusion channel to the discharge channel is set to one-to-two.

13. The laser surgical endoscope of claim 12, wherein the core assembly further comprises a camera unit and at least one illumination unit, the camera unit and the illumination unit being disposed at a front end of the core front end portion.

14. The laser surgical endoscope of claim 13, wherein the core assembly further comprises at least one fluid outlet slot disposed at the core forward end, the fluid outlet slot communicating with the fluid outlet channel.

15. A laser surgical endoscope for the prostate, comprising:

a sheath assembly having a main channel; and

the inner core assembly comprises a visual unit and a liquid injection channel, the visual unit is arranged at the front end of the inner core assembly, the inner core assembly is suitable for being inserted into the main channel, a liquid outlet channel is formed between the inner core assembly and the outer sheath assembly, and a laser assembly is suitable for being inserted into the liquid injection channel and extends out of the inner core assembly to perform corresponding operation at a focus.