Endoscope lens wiper

Abstract

The utility model discloses an endoscope lens wiper, which comprises a sleeve, an operation part and a brush head assembly, the operation part and the brush head assembly are arranged at two ends of the sleeve, a steel rope is arranged in the sleeve, a shifting block connected with the rear end of the steel rope is arranged on the operation part, and the endoscope lens wiper is characterized in that the brush head assembly comprises a rotating component, a transmission component and a brush head; the rotating part comprises a connecting base and a rotating body, the connecting base is fixed to the front end of the sleeve, and the rotating body and the connecting base are arranged to be in sliding fit in the axial direction and synchronously in rotating fit in the circumferential direction; the transmission part is provided with an execution end and a fixed end fixedly connected with the rotating body, the front end of the steel rope penetrates through the rotating body and is connected with the transmission part, and the transmission part is arranged to allow the execution end to expand outwards in the radial direction under the tension effect of the steel rope; the brush head is installed on the execution end. The utility model provides an endoscope lens wiper which can wipe a lens at the end of an endoscope under the condition that the endoscope is not withdrawn, so that the endoscope lens cleaning step in an operation is simplified, and the overall time consumption of the operation is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of endoscope-related equipment, specifically an endoscope lens wipe. Background Technology

[0002] Endoscopes are essential surgical instruments in clinical procedures. The tip of an endoscope typically includes a camera, lighting fixture, and forceps channel. In various endoscopic surgeries, the camera lens often becomes obscured by debris, resulting in a less clear surgical field. Therefore, most existing endoscopes are equipped with lens cleaning devices, which clean the lens by rinsing it with a cleaning solution. However, some debris may still remain. For example, during colonoscopy, the camera lens may become contaminated with blood clots, mucus, or even fecal matter. While the cleaning solution can remove most of this debris, some residue may remain. In such cases, the surgeon must remove the endoscope from the patient's body, manually clean the lens, and reinsert it. This process not only inconveniences the procedure but also increases its duration. Utility Model Content

[0003] The present invention aims to at least partially solve one of the technical problems in the related art: to provide an endoscope lens wipe that can wipe the lens at the end of the endoscope without removing the endoscope, thereby simplifying the intraoperative endoscope lens cleaning steps and reducing the overall surgical time.

[0004] Therefore, one objective of this utility model is to provide an endoscope lens wipe, which includes a sleeve, an operating part and a brush head assembly arranged at both ends of the sleeve, a steel rope inside the sleeve, and a lever connected to the rear end of the steel rope on the operating part. The brush head assembly includes a rotating part, a transmission part and a brush head.

[0005] The rotating component includes a connecting seat and a rotating body. The connecting seat is fixed to the front end of the sleeve, and the rotating body and the connecting seat are configured to slide along the axial direction and rotate synchronously along the circumferential direction.

[0006] The transmission component has an actuating end and a fixed end fixedly connected to the rotating body. The front end of the steel rope passes through the rotating body and is connected to the transmission component. The transmission component is configured to allow the actuating end to expand radially outward under the tension of the steel rope.

[0007] The brush head is mounted on the actuator, which drives the brush head to move outward to the unfolded state or to return inward to the retracted state.

[0008] The above technical solution has the following advantages or beneficial effects: by utilizing the original clamp channel of the endoscope, the sleeve with the brush head assembly can be inserted into the front end of the endoscope through the clamp channel. The brush head can be unfolded by driving the steel cable through the operating part, and rotated under the tension of the steel cable. Thus, the brush head can wipe the lens, so that the deposits that cannot be rinsed on the lens surface can be wiped away, thereby cleaning the lens.

[0009] According to one example of this utility model, the connecting seat includes a rear connecting seat, a spring, and a front connecting seat. The rear connecting seat is fixed to the front end of the sleeve, and the two ends of the spring are respectively connected to the front connecting seat and the rear connecting seat. The rotating body includes an annular carrier block that rotatably engages with the front connecting seat, a guide rod connected at one end to the annular carrier block, and a transmission ring at the other end of the guide rod. The outer wall of the transmission ring is threadedly connected to the inner wall of the rear connecting seat. The tension of the steel rope causes the actuator in the transmission component to first unfold the brush head. As the tension of the steel rope continues, the fixed end of the transmission component drives the rotating body to rotate, thereby causing the brush head to rotate and completing the wiping of the lens.

[0010] According to an example of this utility model, the transmission component includes a base, a support arm, a driven rod, a driving rod, and a pull rod. The base is fixed to an annular block, the support arm is fixed to the base, the proximal end of the pull rod passes through the central hole on the base axially and is connected to a steel rope, the distal end of the pull rod is hinged to the proximal end of the driving rod, the distal end of the driving rod is hinged to the distal end of the driven rod, and the proximal end of the driven rod is hinged to the support arm, the distal end of the driving rod is the actuating end, and the brush head is mounted on the distal end of the driving rod and extends outward along the length direction of the driving rod.

[0011] According to one example of this utility model, the pull rod has a strip-shaped groove, and the hinge shaft between the proximal end of the driven rod and the support arm passes through the strip-shaped groove. When the proximal end of the strip-shaped groove abuts against the hinge shaft, the brush head is in a retracted state; when the distal end of the strip-shaped groove abuts against the hinge shaft, the brush head is in an extended state. The strip-shaped groove can restrict the extended position of the brush head, and after the brush head is fully extended, it can transmit the tension of the steel rope to the rotating body, realizing the rotation of the rotating body.

[0012] According to one example of this utility model, there are two active rods, each connected to its corresponding driven rod, and each active rod has a brush head at its distal end. The two symmetrical brush heads improve the cleaning efficiency of the lens.

[0013] According to one example of this invention, the two active rods are located on opposite sides of the horizontal plane containing the center line of the pull rod, so that the two brush heads are staggered. The staggered arrangement of the brush heads allows the two brush heads to come closer together in the retracted state, reducing the overall cross-sectional size and facilitating passage through the clamping channel on the endoscope.

[0014] According to one example of the present invention, the lever and the operating part slide in an axial direction, and the rear end of the steel rope is connected to the lever.

[0015] According to one example of this invention, the rear end of the steel rope is axially limited and circumferentially rotated with the lever block. By making the rear end of the steel rope and the lever block rotated, the situation where the rotating body rotates and causes the steel rope to twist is avoided.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1 This is a side view diagram of the front end of an existing endoscope.

[0018] Figure 2 yes Figure 1 A schematic diagram of the "A" direction.

[0019] Figure 3 This is a schematic diagram of the endoscope lens wipe of this utility model.

[0020] Figure 4 for Figure 3 A magnified view of a portion of region "B".

[0021] Figure 5 This is a schematic diagram of the internal structure of the brush head assembly in this utility model.

[0022] Figure 6 for Figure 5 The diagram shows a partial enlarged view of the "C" region of the first structure, which is the rotating body.

[0023] Figure 7 for Figure 5 The diagram shows a partially enlarged view of the "C" region of the second type of rotating body.

[0024] Figure 8 This is a schematic diagram showing the brush head assembly exposed through the endoscope forceps channel with the brush head in a retracted state.

[0025] Figure 9 for Figure 8 A diagram showing the brush head in its unfolded state.

[0026] Figure 10 yes Figure 9 A schematic diagram of the "D" direction.

[0027] Among them, 1' is the inner lens section; 2' is the water washing head; 3' is the jet nozzle; 4' is the clamp channel; 5' is the lighting fixture; and 6' is the camera.

[0028] 100. Sleeve; 200. Operating part; 300. Brush head assembly; 301. Rotating part; 301-1. Connecting seat; 301-2. Rotating body; 302. Transmission part; 303. Brush head; 400. Steel rope; 500. Pulley;

[0029] 1. Rear connecting seat; 2. Spring; 3. Front connecting seat; 4. Annular carrier block; 5. Guide rod; 6. Transmission ring; 7. Base; 8. Support arm; 9. Driven rod; 10. Driving rod; 11. Tie rod; 11.1. Strip groove; 12. Slide rail. Detailed Implementation

[0030] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0031] Currently, the endoscopes used in various clinical endoscopic surgeries generally consist of a long, narrow body. The rear end of the body is the operating end, and the front end is the endoscope portion 1' that extends into the patient's body. Figure 1-2 As shown, the endoscope section 1' has a clamp channel 4', an illumination lamp 5', and a camera 6' arranged at intervals on its end face. The illumination lamp 5' provides light, the camera 6' provides the surgical field of view under the endoscope, and the clamp channel 4' allows various surgical instruments to be inserted during endoscopic surgery. In various surgeries, the patient's internal environment often contains a large amount of bodily fluids or contaminants. Therefore, the mirror surface of the camera 6' is often covered by deposits, affecting the surgical field of view. To address this, the existing endoscope section 1' is also equipped with a water washing head 2', whose spray nozzle 3' faces the mirror surface of the camera 6', thus allowing for rinsing. However, due to the different types of endoscopic surgeries and the different conditions of patients, there may be situations where deposits on the lens are difficult to wash off. In such cases, the surgeon can only withdraw the endoscope section 1' outside the patient's body, manually wipe and clean the lens, and then reinsert the endoscope section 1'. This process not only increases the surgical steps and prolongs the operation time, but also makes it difficult to find the same position each time the endoscope is withdrawn and reinserted, thus posing a risk of missed endoscopic examinations. Therefore, the industry is eager for a cleaning solution that can wipe the lens surface of the camera 6' without removing the endoscope, provided that the endoscope has a rinsing system. This solution would be used to further clean the lens when the rinsing system cannot complete the lens cleaning.

[0032] The endoscope lens wipe according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0033] Example 1:

[0034] This utility model provides an endoscope lens cleaner, as shown in the figure. It includes a sleeve 100, which is made of a flexible material that can bend with the bending of the endoscope's clamp channel. The sleeve 100 has an operating part 200 at its rear end and a brush head assembly 300 at its front end. A steel rope 400 is provided inside the sleeve 100 and is slidably engaged with the sleeve 100. The operating part 200 has a lever 500, which is movably connected to the operating part 200. The rear end of the steel rope 400 is connected to the lever so that the lever can drive the steel rope 400 to move relative to the sleeve 100. The brush head assembly 300 includes a rotating part 301, a transmission part 302, and a brush head 303.

[0035] The rotating component 301 includes a connecting seat 301-1 and a rotating body 301-2. The connecting seat 301-1 is fixed to the front end of the sleeve 100. The rotating body 301-2 and the connecting seat 301-1 are configured to slide along the axial direction and rotate synchronously along the circumferential direction. That is, the rotating body 301-2 can move along the axial direction under the action of the tension of the steel rope 400, and rotate along the circumferential direction while moving along the axial direction.

[0036] The transmission component 302 has an actuating end and a fixed end that is fixedly connected to the rotating body 301-2. The front end of the steel rope 400 passes through the rotating body 301-2 and is connected to the transmission component 302. The transmission component 302 is configured to allow the actuating end to expand radially outward under the tension of the steel rope 400.

[0037] The brush head 303 is mounted on the actuator, which drives the brush head 303 to move outward to an unfolded state or inward to a retracted state. In this embodiment, the tension of the steel cable 400 first acts on the transmission component 302, causing the actuator in the transmission component 302 to drive the brush head 303 from the retracted state to the unfolded state. As the steel cable 400 applies further tension, this tension is transmitted through the transmission component 302 to the rotating component 301, thereby causing the rotating body 301-2 on the rotating component 301 to rotate. At the same time, the rotating body 301-2 drives the transmission component 302 and the brush head 303 on the actuator of the transmission component to rotate, ultimately completing the unfolding of the brush head and the wiping and cleaning of the lens while the brush head is rotating.

[0038] Example 2:

[0039] Based on the preferred example of the specific structure of the connecting seat 301-1 and the rotating body 301-2 of the rotating component 301 in the above embodiment 1: such as Figure 5 and Figure 7As shown, the connecting seat 301-1 includes a rear connecting seat 1, a spring 2, and a front connecting seat 3. The rear connecting seat 1 is fixed to the front end of the sleeve 100, and the two ends of the spring 2 are connected to the front connecting seat 3 and the rear connecting seat 1, respectively. The rotating body 301-2 includes an annular carrier block 4 that rotatably engages with the front connecting seat 3, a guide rod 5 connected at one end to the annular carrier block 4, and a transmission ring 6 at the other end of the guide rod 5. The outer wall of the transmission ring 6 is threadedly connected to the inner wall of the rear connecting seat 1. In this embodiment, the tension of the steel rope 400 acts on the transmission component 302, so the annular carrier 4 connected to the transmission component 302 is subjected to tension. The annular carrier 4 drives the guide rod 5 and the transmission ring 6 to apply an axial force to the rear connecting seat 1. Since the rear connecting seat 1 and the transmission ring 6 are connected by a threaded transmission, the transmission ring 6 rotates circumferentially relative to the rear connecting seat 1 while the transmission ring 6 moves axially with the rear connecting seat 1. The rear connecting seat 1 is connected to the front connecting seat 3 through the spring 2. Therefore, the annular carrier 4 rotates with the front connecting seat 3. Finally, the annular carrier 4 drives the entire transmission component 302 and the brush head 303 on the transmission component 302 to rotate. It should be understood that as the tension of the steel cable 400 is removed, the elastic restoring force of the spring 2 will push the front connecting seat 3 to move away from the rear connecting seat 1. At this time, the annular block 4, the guide rod 5 and the transmission ring 6 are simultaneously subjected to this thrust, so the transmission ring 6 can achieve reverse rotation. As the steel cable applies tension back and forth alternately, the tension of the steel cable and the thrust of the spring 2 alternately drive the transmission ring 6 to rotate back and forth, ultimately causing the brush head 303 to make a circumferential swinging motion to wipe and clean the lens.

[0040] Example 3:

[0041] like Figure 6 As shown, the difference from the above embodiment 2 is that the transmission ring 6 on the guide rod 5 is replaced by a spiral slide rail 12, which is fixed in the rear connecting seat 1. The end of the guide rod 5 is inserted into the groove on the slide rail 12. As the tension of the steel rope 400 acts on the guide rod 5, the end of the guide rod 5 slides against the inner wall of the groove on the slide rail 12, thereby causing the guide rod 5 to move circumferentially along the slide rail 12.

[0042] Furthermore, since the guide rod 5 interferes with the end of the slide rod 12 after one rotation, in order to further increase the angle or number of rotations of the guide rod 5 in one direction, such as... Figure 6 The front end of the guide rod near the slide rod 12 is set as a crankshaft, that is, the front end of the guide rod 5 extends along the center line S to form a crankshaft structure. This allows the rod body of the guide rod 5 to avoid the slide rail 12 during rotation, so that the guide rod 5 can rotate at a larger angle, and even rotate multiple times on the slide rail 12.

[0043] Example 4:

[0044] Based on the above embodiments, the transmission component 302 further includes a base 7, a support arm 8, a driven rod 9, a driving rod 10, and a pull rod 11. The base 7 is fixed to the annular block 4, the support arm 8 is fixed to the base 7, the proximal end of the pull rod 11 passes through the central hole on the base 7 axially and is connected to the steel rope 400, and the distal end of the pull rod 11 is exposed outside the base 7. The proximal end of the driving rod 10 and the distal end of the pull rod 11, the distal end of the driving rod 10 and the distal end of the driven rod 9, and the proximal end of the driven rod 9 and the support arm 8 are all hinged to each other. The pull rod 11, the driven rod 9, and the driving rod 10 constitute a crank-slider mechanism, so that the axial movement of the pull rod 11 and the swing of the driving rod 10 are linked. The distal end of the driving rod 10 is the actuating end, and the brush head 303 is installed on the distal end of the driving rod 10 and extends outward along the length direction of the driving rod 10. In this embodiment, when the steel rope 400 pulls the lever 11 inward toward the base 7, the brush head 303 flips outward until it is in an unfolded state. Conversely, when the steel rope 400 pushes in the opposite direction, it drives the lever 11 outward toward the base 7, causing the brush head 303 to flip inward and return to a retracted state. It should be understood that the steel rope 400 is not merely a tensile cotton thread, but a steel rope 400 with a certain strength. This steel rope 400 can bend to a certain extent radially. When the steel rope 400 is constrained within the sleeve 100, it can provide pulling and pushing forces to the lever 11 when pulled and pushed by the lever 500 on the operating end.

[0045] Preferably, the pull rod 11 has a strip groove 11.1, and the hinge shaft between the proximal end of the driven rod 9 and the support arm 8 passes through the strip groove 11.1. When the proximal end of the strip groove 11.1 abuts against the hinge shaft, the brush head 303 is in a retracted state, and when the distal end of the strip groove 11.1 abuts against the hinge shaft, the brush head 303 is in an extended state. In this embodiment, the strip groove 11.1 is not only to avoid the hinge shaft between the proximal end of the driven rod 9 and the support arm 8, but more importantly, by adjusting the position and length of the strip groove 11.1, the positions of the two ends of the strip groove 11.1 can alternately abut against the hinge shaft during the pulling and pushing of the pull rod 11, thus playing a limiting role. That is, when the two ends of the strip groove 11.1 in the pull rod 11 abut against the hinge shaft respectively, the brush head 303 is in an extended state and a retracted state respectively. In this embodiment, the specific values ​​of the position and length of the strip groove 11.1 can be obtained through a limited number of experiments, so they will not be described in detail in this embodiment.

[0046] Preferably, such as Figure 4-5As shown, there are two active rods 10, symmetrically arranged along the center line of the pull rod 11. Each active rod 10 is connected to its corresponding driven rod 9, and each active rod 10 has a brush head 303 at its distal end. Both brush heads 303 can wipe the lens during rotation, improving wiping efficiency.

[0047] Furthermore, such as Figure 10 As shown, the two active rods 10 are located on either side of the horizontal plane M where the center line of the pull rod 11 is located, so that the two brush heads 303 are misaligned. This misalignment means that the two brush heads 303 swing under the drive of the transmission component, and the planes formed by the swing paths of the two brush heads 303 are not on the same plane, thus forming a misalignment. That is, the two brush heads 303 swing on opposite sides of the horizontal plane M, so as... Figure 8 As shown, the two brush heads 303 can be staggered when they are in the retracted state, which is considered on both sides of the pull rod 11. This makes the diameter of the outer contour of the entire brush head assembly smaller when the brush heads are in the retracted state, which is beneficial for passing through the endoscope's clamp channel.

[0048] Based on the preferred embodiments described above, such as Figure 3 As shown, the operating part 200 has a sliding groove arranged along the axial direction, the lever 500 is slidably fitted on the operating part 200, and the rear end of the steel rope 400 is connected to the lever 500.

[0049] Preferably, the rear end of the steel rope 400 is axially limited and circumferentially rotatable with the lever block 500. Specifically, the rear end of the steel rope 400 is attached to a turntable, which is rotatably fitted in a groove of the lever block 500. As the steel rope 400 rotates circumferentially, the turntable is axially limited in the groove and can rotate circumferentially.

[0050] like Figure 3 As shown, the end of the operating part 200 away from the sleeve 100 is provided with a pull ring.

[0051] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0052] For those skilled in the art, various changes and modifications will undoubtedly be apparent after reading the above description. Therefore, the appended claims should be considered as covering all changes and modifications that encompass the true intent and scope of this utility model. Any and all equivalent scope and content within the scope of the claims should be considered as still falling within the intent and scope of this utility model.

Claims

1. An endoscope lens wipe, comprising a sleeve (100), operating parts (200) arranged at both ends of the sleeve (100), and a brush head assembly (300), wherein a steel rope (400) is disposed inside the sleeve (100), and a lever (500) connected to the rear end of the steel rope (400) is provided on the operating part (200), characterized in that: The brush head assembly (300) includes a rotating component (301), a transmission component (302), and a brush head (303). The rotating component (301) includes a connecting seat (301-1) and a rotating body (301-2). The connecting seat (301-1) is fixed to the front end of the sleeve (100). The rotating body (301-2) and the connecting seat (301-1) are configured to slide along the axial direction and rotate synchronously along the circumferential direction. The transmission component (302) has an actuating end and a fixed end that is fixedly connected to the rotating body (301-2). The front end of the steel rope (400) passes through the rotating body (301-2) and is connected to the transmission component (302). The transmission component (302) is configured to allow the actuating end to expand radially outward under the tension of the steel rope (400). The brush head (303) is mounted on the actuator, which drives the brush head (303) to move outward to the unfolded state or to return inward to the retracted state.

2. The endoscope lens wipe according to claim 1, characterized in that: The connecting seat (301-1) includes a rear connecting seat (1), a spring (2) and a front connecting seat (3). The rear connecting seat (1) is fixed to the sleeve (100), and the two ends of the spring (2) are connected to the front connecting seat (3) and the rear connecting seat (1) respectively. The rotating body (301-2) includes an annular carrier block (4) that rotates with the front connecting seat (3), a guide rod (5) connected to the annular carrier block (4) at one end, and a transmission ring (6) at the other end of the guide rod (5). The outer wall of the transmission ring (6) is threadedly driven with the inner wall of the rear connecting seat (1).

3. The endoscope lens wipe according to claim 2, characterized in that: The transmission component (302) includes a base (7), a support arm (8), a driven rod (9), a driving rod (10), and a pull rod (11). The base (7) is fixed to the annular block (4), and the support arm (8) is fixed on the base (7). The proximal end of the pull rod (11) passes through the central hole on the base (7) axially and is connected to the steel rope (400). The distal end of the pull rod (11) is hinged to the proximal end of the driving rod (10), the distal end of the driving rod (10) is hinged to the distal end of the driven rod (9), and the proximal end of the driven rod (9) is hinged to the support arm (8). The distal end of the driving rod (10) is the actuating end. The brush head (303) is installed on the distal end of the driving rod (10) and extends outward along the length direction of the driving rod (10).

4. The endoscope lens wipe according to claim 3, characterized in that: The pull rod (11) has a strip groove (11.1). The hinge shaft between the proximal end of the driven rod (9) and the support arm (8) passes through the strip groove (11.1). When the proximal end of the strip groove (11.1) abuts against the hinge shaft, the brush head is in a retracted state. When the distal end of the strip groove (11.1) abuts against the hinge shaft, the brush head (303) is in an extended state.

5. The endoscope lens wipe according to claim 4, characterized in that: There are two active rods (10), and the two active rods (10) are respectively connected to their corresponding driven rods (9). Each active rod (10) has a brush head (303) at its far end.

6. The endoscope lens wipe according to claim 5, characterized in that: The two active rods (10) are located on both sides of the horizontal plane where the center line of the pull rod (11) is located, so that the two brush heads (303) are staggered.

7. The endoscope lens wipe according to any one of claims 1-6, characterized in that: The lever (500) and the operating part (200) slide in axial direction, and the rear end of the steel rope (400) is connected to the lever (500).

8. The endoscope lens wipe according to claim 7, characterized in that: The rear end of the steel rope (400) is axially limited and circumferentially rotated with the lever block (500).

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