Prostate laser enucleation pushing and stripping device

Abstract

The utility model discloses a prostate laser enucleation push-stripping device which comprises a grab handle, an observation assembly, a sheath tube and an enucleation assembly are sequentially and horizontally arranged on the side face of the grab handle from top to bottom, and a push-stripping assembly is arranged on the side, away from the grab handle, of the interior of the sheath tube and extends to the exterior of the sheath tube. The pushing and stripping assembly comprises an upper pushing and stripping rod and a lower pushing and stripping rod, the lower pushing and stripping rod is fixedly arranged at the end, away from the grab handle, of the sheathing canal, the upper pushing and stripping rod is arranged on the inner side of the lower pushing and stripping rod in a nested mode, and the upper pushing and stripping rod is rotationally connected with the end of the sheathing canal; a rotary driving device is arranged on the side surface, adjacent to the sheathing canal, of the grab handle and is used for driving the upper push stripping rod to rotate; the enucleation assembly comprises an enucleation rod and a laser optical fiber, the laser optical fiber is arranged in the enucleation rod in a penetrating mode and protrudes out of the end face of the end, away from the grab handle, of the enucleation rod, and the laser optical fiber is located in the middle of the upper push-stripping rod and the lower push-stripping rod in the nested state and used for excising target tissue.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a laser enucleation and stripping device for the prostate. Background Technology

[0002] Laser enucleation of the prostate, as a minimally invasive treatment method, has gradually become an important means of treating prostate diseases such as benign prostatic hyperplasia due to its advantages such as minimal trauma, rapid recovery, and few complications.

[0003] For example, Chinese patent CN214857399U discloses a prostate laser enucleation and stripping device, which includes clamps and a laser fiber disposed on the side of the clamp head. During the operation, the operator holds the clamps to control the clamp heads to move away from each other and lift the tissue. Then, the laser fiber on the side of the clamp head is used to remove the tissue. This requires a high level of hand strength from the operator. During long-term operations, it is difficult to guarantee the accuracy and efficiency of the operation. In addition, the laser fiber is disposed on the side of the clamp head, which increases the lateral swing amplitude of the device during tissue removal, which can easily increase the wound area and make it difficult to completely expose the tissue to be removed under the laser fiber, thus affecting the accuracy and efficiency of tissue removal.

[0004] Therefore, it is necessary to provide a laser enucleation and stripping device for the prostate to solve the problems mentioned in the background art. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: a prostate laser enucleation and stripping device, comprising: a handle, wherein an observation component, a sheath and an enucleation component are horizontally arranged from top to bottom on the side of the handle, and a stripping component is arranged inside the sheath on the side opposite to the handle.

[0006] The peeling assembly includes an upper peeling rod and a lower peeling rod. The lower peeling rod is fixed to the end of the sheath away from the handle. The upper peeling rod is nested inside the lower peeling rod and is rotatably connected to the end of the sheath.

[0007] A rotary drive device is provided on the side of the handle adjacent to the sheath, and the rotary drive device is used to drive the upper push bar to rotate.

[0008] The removal assembly includes a removal rod and a laser fiber. The removal rod has an optical fiber channel, and the laser fiber passes through the optical fiber channel and protrudes from the end face of the removal rod opposite to the handle. The laser fiber is located in the middle of the upper and lower push-strip rods in a nested state and is used to remove the target tissue.

[0009] Preferably, the peeling assembly further includes:

[0010] A fixing block is fixed inside the sheath tube, and a sealing block is slidably provided on the side of the fixing block away from the handle. The fixing block and the sealing block are connected by a spring.

[0011] An n-shaped frame is vertically arranged on the upper end of the push-pull bar near the sheath tube. A pull rod is arranged between the n-shaped frame and the sealing block. A rotating sleeve is fixed at one end of the pull rod. The rotating sleeve is rotatably sleeved on the horizontal section of the n-shaped frame. The other end of the pull rod is hinged to the sealing block.

[0012] A pull rope is threaded through the fixed block along the extension direction of the sheath tube. One end of the pull rope is installed on the sealing block, and the other end is wound around the winch. The winch is installed in the handle and rotates perpendicularly to the pull rope, and is coaxially connected to the output end of the rotary drive device.

[0013] Preferably, both the upper and lower push-stripping rods include: horizontal portions fixedly disposed on both sides of the end of the sheath away from the handle, the horizontal portions extending away from the handle along the extension direction of the sheath, and an inclined portion fixedly disposed at the end of the horizontal portion away from the sheath. The inclined portions are connected to each other by push-stripping portions, and the horizontal portions, inclined portions and push-stripping portions form an avoidance channel for avoiding the laser fiber during cutting.

[0014] Preferably, the push-stripping part is a horizontally arranged straight rod or a U-shaped rod, or a U-shaped rod that is inclined downwards to the side away from the handle.

[0015] Preferably, the sheath and the removal rod are both provided with a plurality of through holes evenly distributed on the front periphery of the side opposite to the handle.

[0016] Preferably, an illumination lamp is installed around the lens of the observation component.

[0017] Preferably, a driving unit is provided inside the removal rod for driving the laser fiber to extend and retract along the removal rod.

[0018] Preferably, the handle has a plurality of control buttons spaced longitudinally on the side facing the removal component. The control buttons are embedded and the upper surface of the control buttons is flush with the surface of the handle.

[0019] Compared with the prior art, this utility model provides a prostate laser enucleation and stripping device, which has the following beneficial effects:

[0020] 1. By setting nested upper and lower push-stripping rods at the end of the sheath, and driving the upper push-stripping rod to rotate through a rotary drive device, the tissue above and below the tissue to be removed is pushed and stripped, exposing it to the laser fiber. At the same time, a clearance channel is set on the inner side of the upper and lower push-stripping rods to facilitate the passage of the laser fiber, reduce the left and right swing amplitude of the device during cutting, and facilitate precise cutting of the tissue.

[0021] 2. By opening through holes in the excision rod and sheath, the interstitial fluid can be facilitated to move backward, thus preventing the device from pushing the interstitial fluid to the vicinity of the excised tissue and affecting the excision process.

[0022] 3. By setting control buttons on the handle corresponding to the finger positions, it is easy to adjust the removal and peeling components, reduce hand fatigue for staff, and ensure surgical quality. Attached Figure Description

[0023] Figure 1 A schematic diagram of the overall structure of a laser-assisted prostate removal and stripping device;

[0024] Figure 2 A schematic cross-sectional view of the pushing and peeling component of a laser enucleation and pushing device for the prostate.

[0025] Figure 3 A schematic diagram of the pushing and peeling structure of a laser enucleation and peeling device for the prostate in the pushing and peeling state.

[0026] In the diagram: 1. Handle; 2. Inner lens tube; 3. Illumination lamp; 4. Sheath tube; 5. Removal assembly; 6. Push-strip assembly; 7. Rotary drive device; 8. Control button; 9. Upper push-strip rod; 10. Lower push-strip rod; 11. N-shaped frame; 12. Fixing block; 13. Sealing block; 14. Pull rod; 15. Pull rope; 16. Spring; 17. Laser fiber; 18. Through hole; 19. Horizontal part; 20. Inclined part; 21. Push-strip part. Detailed Implementation

[0027] Please see Figure 1-3 This utility model provides a laser enucleation and stripping device for the prostate, comprising:

[0028] The handle 1 has an observation component, a sheath 4 and a removal component 5 arranged horizontally from top to bottom on its side. The sheath 4 has a push-peel component 6 arranged inside the side opposite to the handle 1.

[0029] The peeling assembly 6 includes an upper peeling rod 9 and a lower peeling rod 10. The lower peeling rod 10 is fixedly disposed at one end of the sheath tube 4 away from the handle 1. The upper peeling rod 9 is nested inside the lower peeling rod 10, and the upper peeling rod 9 is rotatably connected to the end of the sheath tube 4.

[0030] A rotary drive device 7 is provided on the side of the handle 1 adjacent to the sheath 4. The rotary drive device 7 is used to drive the upper push bar 9 to rotate.

[0031] The removal assembly 5 includes a removal rod and a laser fiber 17. The removal rod has an optical fiber channel, and the laser fiber 17 passes through the optical fiber channel and protrudes from the end face of the removal rod away from the handle 1. The laser fiber 17 is located in the middle of the upper push-stripping rod 9 and the lower push-stripping rod 10 in a nested state, and is used to remove the target tissue.

[0032] It should be explained that, in the initial state, the upper push bar 9 and the lower push bar 10 are in a nested state.

[0033] During prostate enucleation surgery, the handheld grip 1 guides the device to the area of ​​tissue to be enucleated via the observation component. Then, the rotary drive 7 is controlled to rotate clockwise, causing the upper stripping rod 9 to rotate clockwise. The upper stripping rod 9 and the lower stripping rod 10 push and peel away the tissue, exposing the tissue to be enucleated to the laser fiber 17. The target tissue is then removed through the laser fiber 17. After removal, the rotary drive 7 is reversed, causing the upper stripping rod 9 to rotate counterclockwise, and in conjunction with the lower stripping rod 10, the cut tissue is clamped out, completing the enucleation of the tissue.

[0034] Specifically, the observation component is connected to a display screen.

[0035] Furthermore, the peeling component 6 also includes:

[0036] A fixing block 12 is fixed inside the sheath tube 4. A sealing block 13 is slidably disposed on the side of the fixing block 1 away from the handle 1. The fixing block 12 and the sealing block 13 are connected by a spring 16.

[0037] An n-shaped frame 11 is vertically arranged on the upper end of the push-pull bar 9 near the sheath tube 4. A pull rod 14 is arranged between the n-shaped frame 11 and the sealing block 13. A rotating sleeve is fixed at one end of the pull rod 14. The rotating sleeve is rotatably sleeved on the horizontal section of the n-shaped frame 11. The other end of the pull rod 14 is hinged to the sealing block 13.

[0038] A pull rope 15 is threaded through the fixed block 12 along the extension direction of the sheath tube 4. One end of the pull rope 15 is installed on the sealing block 13, and the other end is wound around the winch. The winch is installed in the handle 1 with the pull rope 15 rotating perpendicularly, and is coaxially connected to the output end of the rotary drive device 7.

[0039] It needs to be explained that the working principle of the upper push stripping rod 9 is as follows: When the tissue is being pushed and stripped, the rotary drive device 7 rotates clockwise to drive the winch to rotate, and the pull rope 15 is wound around the winch. The pull rope 15 drives the sealing block 13 and the pull rod 14 to move and compress the spring 16. At the same time, the upper push stripping rod 9 rotates clockwise under the pull of the pull rod 14. When the upper push stripping rod 9 is reset, it is reversed by the rotary drive device 7. Then, under the elastic force of the spring 16, the sealing block 13 is pushed out, and the pull rod 14 pushes the upper push stripping rod 9 to reset or cooperate with the lower push stripping rod 10 to clamp the cut tissue.

[0040] Furthermore, both the upper push-stripping rod 9 and the lower push-stripping rod 10 include: horizontal portions 19 respectively fixed on both sides of the end of the sheath tube 4 away from the handle 1. The horizontal portions 19 extend along the extension direction of the sheath tube 4 away from the handle 1. An inclined portion 20 is fixedly fixed at the end of the horizontal portion 19 away from the sheath tube 4. The inclined portions 20 are connected to each other through push-stripping portions 21. The horizontal portions 19, the inclined portions 20 and the push-stripping portions 21 form an avoidance channel for avoiding the laser fiber 17 during cutting.

[0041] Specifically, the avoidance channel formed between the horizontal part 19, the inclined part 20 and the peeling part 21 allows the laser fiber 17 to be positioned in the middle of the inner side of the upper peeling rod 9 and the lower peeling rod 10, which helps to reduce the left and right swing amplitude of the device and the wound area during tissue cutting and improves the cutting accuracy.

[0042] Furthermore, the push-stripping part 21 is a horizontally arranged straight rod or a U-shaped rod, or a U-shaped rod that is inclined downwards to the side away from the handle 1.

[0043] Furthermore, both the sheath 4 and the removal rod have a plurality of through holes 18 evenly distributed on the front periphery of the side opposite to the handle 1.

[0044] It should be explained that during the operation, when the device is inserted into the body, the body fluid in the channel may be pushed to the tissue to be removed due to the influence of the human tissue structure, which may interfere with the tissue removal. In this embodiment, by opening a through hole 18 at the front of the removal rod and the sheath 4, the body fluid can move backward, avoiding the accumulation of body fluid to the tissue to be removed and affecting the tissue removal.

[0045] Furthermore, an illumination lamp 3 is installed around the lens of the observation component.

[0046] Specifically, the observation component is an inner lens tube 2, which works in conjunction with an illumination lamp 3 to observe and locate the tissue that needs to be removed.

[0047] Furthermore, a drive unit is provided inside the removal rod to drive the laser fiber 17 to extend and retract along the removal rod.

[0048] It should be explained that the driving unit is an electric telescopic rod. The electric telescopic rod is arranged parallel to the laser fiber 17 in the optical fiber channel. One end of the electric telescopic rod is fixed in the optical fiber channel, and the other end is connected to the laser fiber 17. The extension and retraction of the electric telescopic rod drives the extension and retraction of the laser fiber 17, thereby adjusting the extension length of the laser fiber 17 to facilitate tissue removal.

[0049] Furthermore, the handle 1 has a plurality of control buttons 8 arranged longitudinally at intervals on the side of the handle facing the removal component 5. The control buttons 8 are embedded and the upper surface of the control buttons 8 is flush with the surface of the handle 1.

[0050] It should be explained that traditional excision and peeling devices mostly use a clamp-type manual drive structure, which can easily cause hand fatigue for staff during long-term use, affecting the quality and efficiency of the surgery. In this embodiment, by setting control buttons 8 corresponding to the finger positions at the handle 1, it is convenient to adjust the excision component 5 and the peeling component 6, reducing hand fatigue for staff and ensuring the quality of the surgery.

[0051] The operation button 8 includes at least: a forward / reverse button for the rotary drive device 7, and a retraction and power-on button for the laser fiber 17.

[0052] In practice, the handheld grip guides the device to the area of ​​tissue to be removed within the body via the observation component. Then, the rotating drive mechanism is controlled to rotate clockwise, causing the upper and lower stripping rods to rotate. The upper and lower stripping rods push and peel, exposing the tissue to be removed to the laser fiber. The target tissue is then removed using the laser fiber. After removal, the rotating drive mechanism is reversed to rotate the upper stripping rod counterclockwise, which, in conjunction with the lower stripping rod, clamps out the cut tissue, completing the removal of the tissue.

[0053] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A laser-assisted prostate resection and stripping device, characterized in that, include: The handle (1) has an observation component, a sheath (4) and a removal component (5) arranged horizontally from top to bottom on its side. The sheath (4) has a push-peel component (6) extending from the side opposite to the handle (1) to the outside. The peeling assembly (6) includes an upper peeling rod (9) and a lower peeling rod (10). The lower peeling rod (10) is fixed to one end of the sheath (4) away from the handle (1). The upper peeling rod (9) is nested inside the lower peeling rod (10), and the upper peeling rod (9) is rotatably connected to the end of the sheath (4). A rotary drive device (7) is provided on the side of the handle (1) adjacent to the sheath (4), and the rotary drive device (7) is used to drive the upper push bar (9) to rotate. The removal assembly (5) includes a removal rod and a laser fiber (17). The removal rod has an optical fiber channel. The laser fiber (17) passes through the optical fiber channel and protrudes from the end face of the removal rod away from the handle (1). The laser fiber (17) is located in the middle of the upper push-stripping rod (9) and the lower push-stripping rod (10) in a nested state, and is used to remove the target tissue.

2. The prostate laser enucleation and stripping device according to claim 1, characterized in that, The peeling component (6) also includes: A fixing block (12) is fixed inside the sheath (4). A sealing block (13) is slidably provided on the side of the fixing block (12) away from the handle (1). The fixing block (12) and the sealing block (13) are connected by a spring (16). An n-shaped frame (11) is vertically arranged on the upper end of the push-pull bar (9) near the sheath tube (4). A pull rod (14) is arranged between the n-shaped frame (11) and the sealing block (13). A rotating sleeve is fixed at one end of the pull rod (14). The rotating sleeve is rotatably sleeved on the horizontal section of the n-shaped frame (11). The other end of the pull rod (14) is hinged to the sealing block (13). A pull rope (15) is threaded through the fixed block (12) along the extension direction of the sheath (4). One end of the pull rope (15) is installed on the sealing block (13), and the other end is wound around the winch. The winch is installed in the handle (1) with the pull rope (15) rotating perpendicularly, and is coaxially connected to the output end of the rotary drive device (7).

3. The prostate laser enucleation and stripping device according to claim 2, characterized in that, Both the upper push-strip bar (9) and the lower push-strip bar (10) include: horizontal portions (19) respectively fixed on both sides of the end of the sheath (4) away from the handle (1), the horizontal portions (19) extend away from the handle (1) along the extension direction of the sheath (4), and the horizontal portions (19) are inclined downwards at the end away from the sheath (4) with inclined portions (20) fixed thereon, and the inclined portions (20) are connected to each other by push-strip portions (21). The horizontal portions (19), the inclined portions (20) and the push-strip portions (21) form a clearance channel for clearance when cutting the laser fiber (17).

4. The prostate laser enucleation and stripping device according to claim 3, characterized in that, The push-stripping part (21) is a horizontally arranged straight rod or a U-shaped rod, or a U-shaped rod that is inclined downwards to the side away from the handle (1).

5. The prostate laser enucleation and stripping device according to claim 1, characterized in that, The sheath (4) and the removal rod have several through holes (18) evenly distributed on the front periphery of the side opposite to the handle (1).

6. The prostate laser enucleation and stripping device according to claim 1, characterized in that, Illumination lamps (3) are installed around the lens of the observation component.

7. The prostate laser enucleation and stripping device according to claim 1, characterized in that, The removal rod is equipped with a driving unit for driving the laser fiber (17) to extend and retract along the removal rod.

8. The prostate laser enucleation and stripping device according to claim 1, characterized in that, The handle (1) has several control buttons (8) arranged longitudinally at intervals on the side of the handle facing the removal component (5). The control buttons (8) are embedded and the upper surface of the control buttons (8) is flush with the surface of the handle (1).

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