Prostate laser scope

Abstract

This utility model discloses a prostate laser endoscope, relating to the field of auxiliary tools for prostate surgery, comprising at least an inner core, an outer sheath, and a linkage mechanism. The inner core has at least two independent imaging channels and an operating channel. The operating channel has a water inlet channel with a spray nozzle at the head and a water inlet at the tail. The operating channel contains a laser fiber and a laser head located at the head of the operating channel. The imaging channel contains an imaging fiber, a probe located at the head of the imaging channel, and an imaging connector located at the tail of the imaging channel. The outer sheath is fitted over the outer side of the inner core, forming a water outlet channel between the outer sheath and the inner core. The outer sheath has a water inlet at the head and a water outlet at the tail. The linkage mechanism links the head of the inner core, extending and retracting it into the space of the outer sheath. During surgery, a low-power vapor-cooled laser is used to preserve the internal bladder neck sphincter and the external urethral sphincter at the apex of the prostate, effectively avoiding postoperative urinary incontinence, bladder neck sphincter (BNC), and retrograde ejaculation.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary tools for prostate surgery, and in particular to a prostate laser endoscope. Background Technology

[0002] For benign prostatic hyperplasia (BPH), transurethral resection of the prostate (TURP) remains the "gold standard." In recent years, various energy platforms, including lasers, have demonstrated good efficacy and safety in removing the hyperplastic glands through enucleation / resection techniques.

[0003] Currently, most guidelines recommend laser enucleation and / or vaporization resection. Both methods require the use of the urethra, using a cystoscope to directly access the enlarged prostate gland obstructing the urinary tract. The doctor then manipulates the gland to vaporize or remove the enlarged tissue. Both methods inevitably damage the bladder neck sphincter and the prostatic urethra, leading to complications such as bleeding, infection, bladder neck contracture and stenosis, urinary incontinence, and retrograde ejaculation. Summary of the Invention

[0004] The purpose of this invention is to provide a prostate laser endoscope, which has the advantages of effectively reducing the blind spot during operation and reducing damage to the urethral mucosa, bladder neck, internal and external urethral sphincters, and prostate capsule.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A prostate laser endoscope, comprising at least: The inner core has at least two independent imaging channels and an operation channel. The operation channel is equipped with a water inlet channel, with a water spray nozzle at the head and a water inlet at the tail. The operation channel is equipped with a laser fiber and a laser head located at the head of the operation channel. The imaging channel is equipped with an imaging optical fiber, a probe located at the head of the imaging channel, and an imaging connector located at the tail of the imaging channel. An outer sheath is fitted onto the outside of the inner core, and a water outlet channel is formed between the outer sheath and the inner core. The head of the outer sheath has a water inlet, and the tail has a water outlet. The linkage mechanism extends and retracts the head of the inner core into the outer sheath space. At least part of the linkage mechanism is located on the outer sheath, and the other part is located on the inner core. The operating handle is located on one side of the tail of the outer sheath.

[0006] Further configuration: The linkage mechanism has a first link rotatably connected to the outer sheath and a second link rotatably connected to the inner core, the first link and the second link being hinged to each other.

[0007] Further configuration: The first link is pivotally connected to the outer sheath, and the pivot point is provided with a rebound element that returns the first link to the tail side.

[0008] Further configuration: The inner core is provided with a hook, which is located on the same side as the operating handle.

[0009] Preferably, the head of the inner core is provided with an inclined surface that slopes from the head of the imaging channel to the tail of the operating channel, with an angle of 12 degrees or 30 degrees.

[0010] Preferably, the water outlet of the outer sheath is located on the side of the operating handle facing the head.

[0011] Preferably, the outer periphery of the inner core is 6F-12F, and the outer periphery of the outer sheath is 18F-26F.

[0012] Further features: The laser head and laser fiber are waterproof, and a waterproof sleeve is provided at the end of the operating channel; The laser fiber is connected to an external laser generating device, and the laser generating device and the laser head are electrically connected by a laser fiber.

[0013] Preferably, the laser generating device is a green laser generating device or a holmium laser generating device.

[0014] Further configuration: The probe includes a camera and a cold light source located at the head of the operating channel; The display connector connects to the external display device, and the display device, camera, and cold light source are all electrically connected using optical fiber.

[0015] In summary, this utility model has the following beneficial effects: First, because this invention uses relatively independent inner core and outer sheath, the linkage mechanism can extend or retract the inner core. During surgery, a low-power green laser (30W) is used to ablate the urethral mucosa of the prostate, creating a 2mm incision. The laser head is gradually advanced towards the center of the hyperplastic gland, and after reaching approximately 0.5cm below the urethral mucosa, 100W energy is used to vaporize the hyperplastic gland, expanding the vaporization range outwards. The safe distance for vaporization is 5mm, and the coverage area is controlled during the procedure. Green laser submucosal vaporization, by preserving the internal sphincter of the bladder neck and the external urethral sphincter at the apex of the prostate, reduces thermal damage to the prostate urethral mucosa, effectively preventing postoperative urinary incontinence, bladder neck sphincter (BNC), and retrograde ejaculation. Specifically, the green laser at 100W vaporizes tissue to a distance of 2.38mm and coagulates to a depth of approximately 0.121mm. Choosing a 5mm tissue protection distance is relatively safe.

[0016] Secondly, the combined probe device of this utility model can clearly observe the internal effects. Compared with the traditional method of inserting a rectal ultrasound probe to monitor the prostate and guide the position of the laser head, this utility model needs to be combined with rectal ultrasound probe monitoring. It can not only use the ultrasound probe to convert images and guide the position, but also use the camera and cold light source to directly observe the internal situation.

[0017] Third, the inner core has spray nozzles that continuously clean the internal surgical area, facilitating observation of the internal condition, while the gap between the outer sheath and the inner core forms a drainage channel for drainage. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a prostate laser endoscope; Figure 2 This is the front view of a prostate laser endoscope; Figure 3 This is a cross-sectional view of a prostate laser endoscope.

[0019] In the diagram, 100 is the outer sheath; 101 is the water outlet channel; 102 is the water inlet; and 103 is the water outlet. 200. Inner core; 201. Imaging beam; 202. Imaging connector; 203. Operating channel; 204. Water inlet channel; 205. Spray nozzle; 206. Water inlet; 300. Linkage mechanism; 301. First link; 302. Second link; 400, Operating handle; 500, Hook. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] First preferred embodiment: A type of prostate laser endoscope, such as Figure 1 As shown, the device includes an inner core 200, an outer sheath 100, and a linkage mechanism 300 in which the head of the inner core 200 extends and retracts into the space of the outer sheath 100. At least a portion of the linkage mechanism 300 is disposed on the outer sheath 100, and another portion is disposed on the inner core 200. Specifically, the linkage mechanism 300 has a first connecting rod 301 rotatably connected to the outer sheath 100 and a second connecting rod 302 rotatably connected to the inner core 200, with the first connecting rod and the second connecting rod 302 hinged to each other. The first connecting rod 301 is pivotally connected to the outer sheath 100, and a rebound member is provided at the pivot point to return the first connecting rod 301 to the tail side. The rebound member is not shown in the figure and can be a torsion spring, as used in the prior art, disposed on the pivot axis from which the first connecting rod 301 is pivotally connected to the outer sheath 100.

[0022] An operating handle 400 is provided on the outer sheath 100, and according to the direction shown in the figure, the operating handle 400 is located on the lower side of the outer sheath 100. A hook 500 is provided on the inner core 200, and the hook 500 is located on the same side as the operating handle 400. During operation, the thumb acts on the hook 500, the other four fingers grip the operating handle 400, and the thumb pushes forward to push the inner core 200 out, and it is retracted by the rebound component.

[0023] like Figure 2 and Figure 3 As shown, the inner core 200 has at least two independent display channels and operation channels 203. According to the direction shown in the figure, the uppermost channel is the display channel of the inner core 200, and the lowermost channel is the operation channel 203.

[0024] The operating channel 203 is equipped with a water inlet channel 204. The head of the water inlet channel 204 is equipped with a water spray nozzle 205 and the tail is equipped with a water inlet 206. When working, an external water source is required for opening and closing.

[0025] The operating channel 203 contains a laser fiber and a laser head located at the head of the operating channel 203. The inner core 200 is preferably linear. The imaging channel contains an imaging fiber, a probe located at the head of the imaging channel, and an imaging connector 202 located at the tail of the imaging channel. The probe includes a camera and a cold light source located at the head of the operating channel 203. It should be noted that the imaging fiber probe can be integrally installed inside the inner core 200 or can be a separate component on another device; it can be fitted onto the inner core 200 during use. In this embodiment, after being integrated during manufacturing, it can be connected to an external imaging device via the imaging connector 202 during use. The display device, camera, and cold light source are all electrically connected using the imaging fiber.

[0026] The outer sheath 100 is fitted over the outer side of the inner core 200, forming a water outlet channel 101 between the outer sheath 100 and the inner core 200. The outer sheath 100 has a water inlet 102 at its head and a water outlet 103 at its tail. When water from the inner core 200 impacts the working area, it enters the water outlet channel 101 through the water inlet 102 and is drained through the water outlet 103. Preferably, the water outlet 103 of the outer sheath 100 is located on the side of the operating handle 400 facing the head, thus not affecting hand operation.

[0027] In this embodiment, the operating channel 203 is equipped with a laser fiber and a laser head located at the head of the operating channel 203; the laser fiber is connected to an external laser generating device, and the laser generating device and the laser head are electrically connected via the laser fiber. The laser generating device is a green laser generating device or a holmium laser generating device. The laser head and laser fiber are waterproof, and a waterproof sleeve is provided at the tail of the operating channel 203; the imaging fiber optic probe is independently installed within the operating channel 203 and is simply sleeved onto the operating channel 203 during use.

[0028] For better imaging, the head of the inner core 200 is provided with an inclined surface extending from the head of the imaging channel to the tail of the operating channel 203, with an angle of 12 degrees or 30 degrees. The head of the imaging channel is in front, and the water outlet of the operating channel 203 is at the rear, which can be pre-rinsed to ensure that the image is free of foreign objects and turbidity.

[0029] A 100W green laser vaporizes tissue at a distance of 2.38mm, resulting in a coagulated layer depth of approximately 0.121mm. A tissue protection distance of 5mm is considered relatively safe for better integration with the laser device.

[0030] In this embodiment, the outer circumference of the inner core 200 is 6F-12F, and the outer circumference of the outer sheath 100 is 18F-26F. The smallest specification of the inner core 200 can be 6F, with an outer diameter of 2mm. Different specifications can be announced according to different human bodies. The optimal approach is an outer diameter of 2mm, which can control the damage to the human urethral mucosa within a small range.

[0031] The above embodiments are merely explanations of the present utility model and are not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to the embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present utility model.

Claims

1. A prostate laser scope, characterized by, At least including: The inner core (200) has at least two independent imaging channels and an operation channel (203). The operation channel (203) is provided with a water inlet channel (204). The water inlet channel (204) has a water spray nozzle (205) at its head and a water inlet (206) at its tail. The operation channel (203) is provided with a laser fiber and a laser head located at the head of the operation channel (203). The imaging channel is equipped with an imaging fiber, a probe located at the head of the imaging channel, and an imaging connector (202) located at the tail of the imaging channel. An outer sheath (100) is fitted onto the outside of the inner core (200), and a water outlet channel (101) is formed between the outer sheath (100) and the inner core (200). The head of the outer sheath (100) is provided with a water inlet (102), and the tail is provided with a water outlet (103). The linkage mechanism (300) has its head extending out and retracting into the space of the outer sheath (100). At least a portion of the linkage mechanism (300) is located on the outer sheath (100), and another portion is located on the inner core (200). An operating handle (400) is located on one side of the tail of the outer sheath (100).

2. The prostate laser scope of claim 1, wherein: The linkage mechanism (300) has a first link (301) rotatably connected to the outer sheath (100) and a second link (302) rotatably connected to the inner core (200), the first link (301) and the second link (302) being hinged to each other.

3. The prostate laser scope of claim 2, wherein: The first link (301) is pivotally connected to the outer sheath (100), and the pivot point is provided with a rebound member to return the first link (301) to the tail side.

4. The prostate laser scope of claim 1, wherein: The inner core (200) is provided with a hook (500), and the hook (500) and the operating handle (400) are located on the same side.

5. The prostate laser scope of claim 1, wherein: The head of the inner core (200) is provided with an inclined surface that extends from the head of the imaging channel to the tail of the operation channel (203), with an angle of 12 degrees or 30 degrees.

6. The prostate laser scope of claim 1, wherein: The outlet (103) of the outer sheath (100) is located on the side of the operating handle (400) facing the head.

7. The prostate laser scope of claim 1, wherein: The outer periphery of the inner core (200) is 6F-12F, and the outer periphery of the outer sheath (100) is 18F-26F.

8. The laser prostatic telescope according to any one of claims 1-7, characterized in that: The laser head and laser fiber are waterproof, and the tail of the operation channel (203) is provided with a waterproof sleeve. The laser fiber is connected to an external laser generating device, and the laser generating device and the laser head are electrically connected by a laser fiber.

9. The prostate laser scope of claim 8, wherein: The laser generating equipment is either a green laser generating equipment or a holmium laser generating equipment.

10. The laser prostatic telescope according to any one of claims 1-7, characterized in that: The probe includes: a camera and a cold light source located at the head of the operation channel (203); The display connector (202) is used to connect to an external display device. The display device, camera and cold light source are all electrically connected using display fiber optic cables.

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