Disposable soft lens handle

The flexible endoscope handle, with its toggle lever design, solves the fatigue and accuracy problems caused by knob control, enabling convenient and precise endoscopic lens rotation and improving surgical efficiency and quality.

CN223695840UActive Publication Date: 2025-12-23HUNAN ENDOSO LIFE TECH CO LTD
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Patent Information

Application Number
CN202520257206.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-12-23
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

The existing flexible endoscope handpieces can easily cause fatigue for doctors' fingers during prolonged surgical procedures due to frequent knob rotation, making it difficult to guarantee the accuracy and speed of operation, thus affecting the surgical process and outcome.

Method used

The design replaces the knob control with a toggle lever, which drives the rotating wheel and control cable to turn the endoscope. Combined with an ergonomically designed handle housing and a stable connection structure, it improves the ease and accuracy of operation.

Benefits of technology

It significantly improves the convenience and precision of surgical procedures, reduces doctor fatigue, shortens surgical time, and improves operational efficiency and quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of medical equipment, and particularly discloses a disposable flexible lens handle which comprises a handle shell, a snake bone pipe, an endoscope lens and a cable, one end of the snake bone pipe is installed at one end of the handle shell, the other end of the snake bone pipe is connected with the endoscope lens, and the cable is arranged at the inclined end of a holding part of the handle shell. The top end of the handle shell is further provided with an adjusting shifting button assembly for controlling the endoscope lens to turn, the adjusting shifting button assembly comprises a control rope, a shifting rod and a rotating wheel, a sliding groove is formed in the top of the handle shell, the shifting rod is in sliding connection with the sliding groove, and the rotating wheel is connected to the bottom of the shifting rod and rotationally installed in the handle shell. Two ends of the control rope are respectively connected with the rotating wheel and the snake bone pipe, through the design of the poking type poking rod, the operation convenience of the soft lens handle is obviously improved, and the efficiency and the quality of medical operation are further improved.
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Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, specifically to a disposable flexible endoscope handle. Background Technology

[0002] Flexible endoscopes are commonly used medical instruments in medical examinations and surgical procedures. The handle of a flexible endoscope is used to control its various functions, with the control of the insertion tip, bending section, and camera viewing angle being particularly crucial. Existing flexible endoscope handles typically use control knobs to achieve this function; however, in actual operation, control knobs have some significant drawbacks. For example, during prolonged surgical procedures, frequent knob rotation by the surgeon can easily lead to fatigue, and the accuracy and speed of operation are difficult to guarantee. In scenarios where timely operation is critical, knob-based control may affect the surgical process and outcome. Therefore, improvements to the existing flexible endoscope handle control structure are necessary.

[0003] The purpose of this invention is to provide a disposable soft lens handle to solve the problems mentioned in the background art. Utility Model Content

[0004] To achieve the above objectives, this utility model provides a disposable flexible endoscope handle, including a handle housing, a snake-bone tube, an endoscope lens, and a cable. One end of the snake-bone tube is installed at one end of the handle housing, and the other end is connected to the endoscope lens. The cable is located at the inclined end of the grip portion of the handle housing. The top of the handle housing is also provided with an adjustment knob assembly for controlling the rotation of the endoscope lens.

[0005] The adjustment knob assembly includes a control rope, a lever, and a rotating wheel. The top of the handle housing is provided with a groove, the lever is slidably connected to the groove, the bottom of the lever is connected to the rotating wheel, the rotating wheel is rotatably installed inside the handle housing, and the two ends of the control rope are respectively connected to the rotating wheel and the snake tube.

[0006] A flushing and irrigation system; it includes a working pipe, an inlet pipe and an outlet pipe, wherein the working pipe is located inside the center of the handle housing, and the inlet pipe and the outlet pipe are located at the end of the handle housing away from the snake-bone tube, and are both connected to the working pipe;

[0007] The endoscope is electrically connected to a PCBA board, which is installed inside the handle housing. A tail cable sleeve is obliquely positioned at one end of the handle housing near the irrigation / perfusion system. One end of the cable is inserted through the tail cable sleeve and electrically connected to the PCBA board. The handle housing is ergonomically designed to facilitate stable gripping by the doctor for extended periods, ensuring a stable hold of the endoscope. Simultaneously, the endoscope's rotation can be controlled via an adjustable dial assembly. Compared to existing rotary knob controls, this significantly improves the ease of operation of the flexible endoscope handle, thereby enhancing the efficiency and quality of medical procedures. The irrigation / perfusion system is used for irrigation and perfusion during surgery.

[0008] As a further improvement of this utility model, the rotating wheel includes a sector plate one and a sector plate two. The top center of the sector plate one is fixedly connected to the bottom end of the lever. A sleeve is fixedly connected to one side outer wall of the sector plate two. The bottom end of the sector plate two is fixedly connected to the top outer wall of the sleeve. A fixed shaft is installed on one side inner wall of the handle housing. The sleeve is sleeved outside the fixed shaft and rotatably connected to it. This design enables the lever to drive the rotating wheel to rotate stably, thereby controlling the steel wire rope to drive the snake tube to bend and turn, achieving the purpose of adjusting the direction of the endoscope.

[0009] As a further improvement of this utility model, the surface of the lever is provided with anti-slip texture to increase the friction between the hand and the lever during operation, making the operation more stable and precise.

[0010] As a further improvement of this utility model, an arc-shaped guide plate is fixedly installed on the outer wall of the fan-shaped plate away from the sleeve. Both ends of the arc-shaped guide plate are provided with limit blocks. A wire hole is opened on the limit block. The wire hole is used to connect the control rope. The design of the arc-shaped guide plate and the limit block ensures the stability and accuracy of the control rope during the rotation process and avoids the control rope from falling off or getting tangled.

[0011] As a further improvement of this utility model, the control rope includes two steel wire ropes. The same end of the two steel wire ropes passes through the two wire holes one along the arc surface of the arc-shaped guide plate, and is fixedly bonded to the outer wall of the sector plate two by aluminum ring pressure block one. After the two steel wire ropes pass through the wire holes one, their ends are simultaneously connected and fixed by aluminum ring pressure block two. The steel wire ropes and aluminum ring pressure blocks ensure the strength and stability of the control rope, thereby ensuring the accuracy and reliability of the endoscope lens rotation.

[0012] As a further improvement of this utility model, each segment of the snake bone tube is symmetrically provided with two wire holes that are interconnected to form a rope channel. The ends of the two steel wire ropes away from the rotating wheel extend out of the handle housing and are respectively inserted into the symmetrical rope channels and fixedly connected to the inner end of the snake bone tube, thereby realizing a stable connection between the control rope and the snake bone tube. Thus, the bending of the snake bone tube can be controlled by pulling the control rope, thereby adjusting the direction of the endoscope.

[0013] As a further improvement of this utility model, a fixing seat is provided at one end of the handle housing. The fixing seat is installed at one end near the snake bone tube. A guide tube is fixedly installed on the fixing seat. The guide tube is located inside the handle housing. Both steel wire ropes pass through the guide tube and are connected to the snake bone tube. The design of the guide tube further ensures the stability and accuracy of the connection between the steel wire rope and the snake bone tube, and avoids the steel wire rope from shifting or falling off during the connection process.

[0014] As a further improvement of this utility model, a fixed base two is installed at one end of the handle housing near the water inlet pipe. One end of the working pipe extends through the fixed base two to the inner wall of the endoscope, and the other end is connected to a three-way valve one. The horizontal end of the three-way valve one is inserted into the fixed base two and connected to the three-way valve two. The vertical end of the three-way valve one is connected to the water outlet pipe, and the vertical end of the three-way valve two is connected to the water inlet pipe. The horizontal port of the three-way valve two is the surgical instrument inlet. Through this design, the function of the irrigation and perfusion system is realized, providing the necessary irrigation and perfusion operations for surgery. At the same time, the design of the three-way valve also facilitates the access and operation of surgical instruments.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention replaces the knob for controlling the rotation of the endoscope in a disposable flexible endoscope with a lever design, significantly improving the convenience and precision of surgical operations. The lever design simplifies the rotation operation; doctors only need to make a slight movement to achieve quick and accurate endoscope rotation, shortening surgical time and improving efficiency. At the same time, the lever provides intuitive feedback, enhancing the precision of surgical control and reducing the risk of misoperation. In addition, the lever design reduces the burden on the doctor's hands, reduces operational fatigue, and makes the surgical process easier and more stable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the handle of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the handle of this utility model;

[0019] Figure 3 This utility model Figure 2Enlarged view of point A.

[0020] In the picture: 1. Handle housing;

[0021] 2. Adjustment knob assembly; 21. Control rope; 22. Lever; 23. Rotary wheel; 231. Sector plate one; 232. Sector plate two; 233. Sleeve; 234. Arc-shaped guide plate; 235. Limiting block; 236. Wire hole;

[0022] 3. Flushing and irrigating system; 31. Working pipeline; 32. Inlet pipe; 33. Outlet pipe;

[0023] 4. Endoscope; 5. Snake-bone tube; 6. PCBA board; 7. Cable; 8. Guide tube; 9. Mounting base one; 10. Mounting base two; 11. Three-way valve one; 12. Three-way valve two. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] Please see Figure 1-3 This utility model provides a disposable flexible endoscope handle, including a handle housing 1, a snake bone tube 5, an endoscope lens 4 and a cable 7. One end of the snake bone tube 5 is installed on one end of the handle housing 1, and the other end is connected to the endoscope lens 4. The cable 7 is set at the inclined end of the grip part of the handle housing 1. The top of the handle housing 1 is also provided with an adjustment knob assembly 2 for controlling the rotation of the endoscope lens 4.

[0028] The adjustment knob assembly 2 includes a control rope 21, a lever 22, and a rotating wheel 23. The top of the handle housing 1 is provided with a sliding groove, the lever 22 is slidably connected to the sliding groove, the bottom of the lever 22 is connected to the rotating wheel 23, the rotating wheel 23 is rotatably installed inside the handle housing 1, and the two ends of the control rope 21 are respectively connected to the rotating wheel 23 and the snake bone tube 5.

[0029] The flushing and irrigation system 3 includes a working pipe 31, an inlet pipe 32, and an outlet pipe 33. The working pipe 31 is located inside the center of the handle housing 1. The inlet pipe 32 and the outlet pipe 33 are located at the end of the handle housing 1 away from the snake bone tube 5, and are both connected to the working pipe 31.

[0030] The endoscope 4 is electrically connected to a PCBA board 6, which is installed inside the handle housing 1. A tail cable sleeve is obliquely provided at one end of the handle housing 1 near the irrigation and perfusion system 3. One end of the cable 7 is inserted through the tail cable sleeve and electrically connected to the PCBA board 6. The handle housing 1 adopts an ergonomic design, which facilitates stable holding by doctors for a long time and ensures stable holding of the endoscope. At the same time, the rotation of the endoscope 4 can be controlled by adjusting the dial assembly 2. Compared with the knob control of the existing technology, the convenience of operating the flexible endoscope handle is significantly improved, thereby improving the efficiency and quality of medical operations. The irrigation and perfusion system 3 is used for irrigation and perfusion operations during surgery.

[0031] The rotating wheel 23 includes a first sector plate 231 and a second sector plate 232. The top center of the first sector plate 231 is fixedly connected to the bottom end of the lever 22. A sleeve 233 is fixedly connected to one side of the outer wall of the second sector plate 232. The bottom end of the second sector plate 232 is fixedly connected to the top outer wall of the sleeve 233. A fixed shaft is installed on one side of the inner wall of the handle housing 1. The sleeve 233 is sleeved on the outside of the fixed shaft and rotatably connected to it. This design enables the lever 22 to drive the rotating wheel 23 to rotate stably, thereby controlling the steel wire rope to drive the snake tube 5 to bend and turn, so as to adjust the direction of the endoscope lens 4.

[0032] The surface of the lever 22 is provided with anti-slip texture to increase the friction between the hand and the lever 22 during operation, making the operation more stable and precise.

[0033] An arc-shaped guide plate 234 is fixedly installed on the outer wall of the sector plate 232 away from the sleeve 233. Both ends of the arc-shaped guide plate 234 are provided with limit blocks 235. The limit blocks 235 are provided with wire holes 236, which are used to connect the control rope 21. The design of the arc-shaped guide plate 234 and the limit blocks 235 ensures the stability and accuracy of the control rope 21 during rotation, and avoids the control rope 21 from falling off or getting tangled.

[0034] The control rope 21 includes two steel wire ropes. The same end of the two steel wire ropes passes through the two wire holes 236 along the arc surface of the arc-shaped guide plate 234 and is fixedly bonded to the outer wall of the sector plate 232 by an aluminum ring clamping block. After the two steel wire ropes pass through the wire holes 236, their ends are simultaneously connected and fixed by the aluminum ring clamping block. The steel wire ropes and aluminum ring clamping blocks ensure the strength and stability of the control rope 21, thereby ensuring the accuracy and reliability of the rotation of the endoscope lens 4.

[0035] Each segment of the snake bone tube 5 is symmetrically provided with two wire holes 236, which are interconnected to form a rope channel. The ends of the two steel wire ropes away from the rotating wheel 23 extend out of the handle housing 1 and are respectively inserted into the symmetrical rope channels and fixedly connected to the inner end of the snake bone tube 5, thereby realizing a stable connection between the control rope 21 and the snake bone tube 5. Thus, the bending of the snake bone tube 5 can be controlled by pulling the control rope 21, thereby adjusting the direction of the endoscope 4.

[0036] One end of the handle housing 1 is provided with a fixing seat 9, which is installed near the snake tube 5. A guide tube 8 is fixedly installed on the fixing seat 9. The guide tube 8 is located inside the handle housing 1. Both steel wire ropes pass through the guide tube 8 and are connected to the snake tube 5. The design of the guide tube 8 further ensures the stability and accuracy of the connection between the steel wire rope and the snake tube 5, and avoids the steel wire rope from shifting or falling off during the connection process.

[0037] A fixing base 2 10 is installed at one end of the handle housing 1 near the water inlet pipe 32. One end of the working pipe 31 extends through the fixing base 2 10 to the inner wall of the endoscope 4, and the other end is connected to a three-way valve 11. The horizontal end of the three-way valve 11 is inserted into the fixing base 2 10 and connected to a three-way valve 2 12. The vertical end of the three-way valve 11 is connected to the water outlet pipe 33, and the vertical end of the three-way valve 2 12 is connected to the water inlet pipe 32. The horizontal port of the three-way valve 2 12 is the surgical instrument inlet. Through this design, the function of the irrigation and perfusion system 3 is realized, providing the necessary irrigation and perfusion operations for surgery. At the same time, the design of the three-way valve also facilitates the access and operation of surgical instruments.

[0038] Working principle:

[0039] In use, the lever 22 is pushed back and forth to slide along the through groove of the handle housing 1. Since the bottom end of the lever 22 is connected to the rotating wheel 23, when the rotating wheel 23 is driven to rotate, the sector plate 232 in the rotating wheel 23 drives one of the steel wires of the control rope 21 to pull the snake tube 5 to turn. When the lever 22 is pushed in the opposite direction, the steel wire on the other side drives the snake tube 5 to turn in the opposite direction. The design of the lever 22 simplifies the turning operation. Doctors only need to make a slight movement to achieve quick and accurate endoscope turning, shortening the operation time and improving efficiency. At the same time, the lever 22 provides intuitive feedback. The design enhances the precision of surgical control and reduces the risk of misoperation. In addition, the lever 22 design reduces the burden on the surgeon's hands and reduces operational fatigue, making the surgical process easier and more stable. A flushing and irrigation system 3 is set at one end of the handle housing 1. When operating with a flexible endoscope, the cleaning fluid can be delivered to the surgical site through the inlet pipe 32. At this time, the valve of the outlet pipe 33 is closed. After the operation is completed, the valve at the end of the inlet pipe 32 is closed, and the excess waste fluid from the surgical site is suctioned out by the suction pump and finally discharged from the outlet pipe 33. The design of the inlet and outlet channels is designed to meet more clinical needs.

[0040] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A disposable flexible endoscope handle, comprising a handle housing (1), a snake-bone tube (5), an endoscope lens (4), and a cable (7), characterized in that: One end of the snake bone tube (5) is installed at one end of the handle housing (1), and the other end is connected to the endoscope (4). The cable (7) is set at the inclined end of the grip part of the handle housing (1). The top of the handle housing (1) is also provided with an adjustment knob assembly (2) for controlling the rotation of the endoscope (4). The adjustment knob assembly (2) includes a control rope (21), a lever (22) and a rotating wheel (23). The top of the handle housing (1) is provided with a sliding groove. The lever (22) is slidably connected to the sliding groove. The bottom of the lever (22) is connected to the rotating wheel (23). The rotating wheel (23) is rotatably installed inside the handle housing (1). The two ends of the control rope (21) are respectively connected to the rotating wheel (23) and the snake bone tube (5). A flushing and irrigation system (3) includes a working pipe (31), an inlet pipe (32) and an outlet pipe (33). The working pipe (31) is located in the center of the handle housing (1). The inlet pipe (32) and the outlet pipe (33) are located at the end of the handle housing (1) away from the snake bone pipe (5) and are both connected to the working pipe (31). The endoscope (4) is electrically connected to a PCBA board (6), which is installed inside the handle housing (1). A tail wire sleeve is obliquely provided at one end of the handle housing (1) near the flushing and irrigation system (3). One end of the cable (7) is inserted from the tail wire sleeve and electrically connected to the PCBA board (6).

2. The disposable flexible eyeglass handle according to claim 1, characterized in that: The rotating wheel (23) includes a sector plate one (231) and a sector plate two (232). The top center of the sector plate one (231) is fixedly connected to the bottom end of the lever (22). A sleeve (233) is fixedly connected to one side of the outer wall of the sector plate two (232). The bottom end of the sector plate two (232) is fixedly connected to the top outer wall of the sleeve (233). A fixed shaft is installed on one side of the inner wall of the handle housing (1). The sleeve (233) is sleeved on the outside of the fixed shaft and rotatably connected to it.

3. The disposable flexible eyeglass handle according to claim 2, characterized in that: An arc-shaped guide plate (234) is fixedly installed on the outer wall of the side of the fan-shaped plate (232) away from the sleeve (233). Both ends of the arc-shaped guide plate (234) are provided with limit blocks (235). A wire hole (236) is opened on the limit block (235), and the wire hole (236) is used to connect the control rope (21).

4. The disposable flexible eyeglass handle according to claim 3, characterized in that: The control rope (21) includes two steel wire ropes. The same end of the two steel wire ropes passes through the two wire holes (236) along the arc surface of the arc guide plate (234) and is fixedly bonded to the outer wall of the fan-shaped plate (232) by an aluminum ring pressure block. After the two steel wire ropes pass through the wire holes (236), their ends are simultaneously connected and fixed by the aluminum ring pressure block.

5. A disposable flexible eyeglass handle according to claim 4, characterized in that: The snake bone tube (5) has symmetrically arranged wire holes (236) on each snake bone segment, which are interconnected to form a rope channel. The ends of the two steel wire ropes away from the wheel (23) extend out of the handle housing (1) and are respectively inserted into the symmetrical rope channels and fixedly connected to the inner end of the snake bone tube (5).

6. A disposable flexible eyeglass handle according to claim 5, characterized in that: The handle housing (1) is provided with a fixing seat (9) at one end. The fixing seat (9) is installed at one end close to the snake tube (5). A guide tube (8) is fixedly installed on the fixing seat (9). The guide tube (8) is located inside the handle housing (1). Both steel wire ropes pass through the guide tube (8) and are connected to the snake tube (5).

7. The disposable flexible eyeglass handle according to claim 1, characterized in that: The handle housing (1) is fitted with a fixed base two (10) near the water inlet pipe (32). One end of the working pipe (31) extends through the fixed base two (10) to the inner wall of the endoscope (4), and the other end is connected to a three-way valve one (11). The horizontal end of the three-way valve one (11) is inserted into the fixed base two (10) and connected to a three-way valve two (12). The vertical end of the three-way valve one (11) is connected to the water outlet pipe (33), and the vertical end of the three-way valve two (12) is connected to the water inlet pipe (32). The horizontal port of the three-way valve two (12) is the surgical instrument inlet.