Endoscope operation part and endoscope

Abstract

The utility model relates to an endoscope operating part and endoscope, including the head, the head is rotatingly connected with the drum wheel through the drum wheel shaft, the head is provided with the control subassembly that restricts the drum wheel shaft rotation, the control subassembly includes gear, bite tooth and drive ring; the gear is coaxially connected outside the drum shaft and synchronously rotates with the drum shaft; the meshing teeth are arranged on one side of the gear in a sliding mode, and the meshing teeth are driven by external force to move towards the gear and are meshed and locked with the gear. And the driving ring surrounds the gear and the meshing teeth and is eccentrically arranged relative to the drum shaft. According to the utility model, the gear rotates synchronously with the drum shaft, and the drum shaft is indirectly locked in a manner of limiting the rotation of the gear through the meshing teeth, so that the current visual angle of the probe part is fixed, and continuous observation and recording are facilitated; in addition, the driving ring is arranged to drive the meshing teeth to move and enable the meshing teeth and the gears to be in sliding connection, and the meshing teeth can be close to or away from the gears so as to be switched between the rotatable state and the locking state.

Description

Technical Field

[0001] This utility model belongs to the field of endoscope technology, and particularly relates to an endoscope operating part, and an endoscope having the endoscope operating part. Background Technology

[0002] An endoscope is a medical device used to examine internal organs of the human body. It allows observation of areas such as the digestive tract, respiratory tract, and urinary system, and also enables certain therapeutic procedures. Endoscopic technology originated in the early 19th century. With advancements in technology, particularly in optics, materials science, and electronics, current endoscopes typically boast a refresh rate of 60Hz. This provides smooth dynamic video, reduces image flicker and ghosting, and ensures that observers can clearly see details in dynamic scenes. This allows doctors to operate more accurately, improving the safety and success rate of surgeries.

[0003] An endoscope generally consists of an operating section, a probe section, and a cannula connecting the operating section and the probe section. The user controls the operating section to drive the probe section to bend within the patient's body to observe different directions. However, in actual use, in order to reduce the resistance when the operator drives the drum wheel with one hand, the drum wheel shaft is connected to the housing through a bearing. This makes the drum wheel shaft too flexible, which is not conducive to continuous observation at a fixed angle. Utility Model Content

[0004] This utility model addresses the problems in the prior art by providing an endoscope operating unit and an endoscope, with the specific technical solution as follows:

[0005] An endoscope operating unit includes a head, on which a drum is rotatably connected via a drum shaft. The head is provided with a control component that limits the rotation of the drum shaft. The control component includes a gear, a tooth, and a drive ring.

[0006] The gear is coaxially connected to the outside of the drum shaft and rotates synchronously with it;

[0007] The teeth are slidably disposed on one side of the gear. The teeth are driven by an external force to move toward the gear and engage and lock with it.

[0008] The drive ring surrounds the gear and teeth and is eccentrically positioned relative to the drum shaft. The inner ring of the drive ring presses against the teeth. When the drive ring rotates around the drum shaft, it can adjust the distance between the gear and teeth to switch between a rotatable state and a locked state.

[0009] As a further technical solution of this utility model, the bite teeth and the drive ring are slidably connected by a connecting tongue. The two end faces of the connecting tongue extending into the drive ring have protruding vertical shafts and form a T-shaped structure. The drive ring is provided with a slide corresponding to the T-shaped structure.

[0010] As a further technical solution of this utility model, a groove is provided on the head to limit the sliding trajectory of the bite teeth. The bite teeth are slidably connected to the groove via a slider, and the extension line of the groove path passes through the axis of the drum shaft.

[0011] As a further technical solution of this utility model, it also includes a handle connected to the head, and a lever extends radially from one side of the drive ring toward the handle.

[0012] As a further technical solution of this utility model, the end face of the paddle facing the head has a rubber pad, and the paddle generates damping with the head through the rubber pad.

[0013] An endoscope having the aforementioned endoscope operating section.

[0014] The beneficial effects of this utility model are as follows:

[0015] (1) In this application, the drum shaft is indirectly locked by using gears to rotate synchronously with the drum shaft and by using teeth to restrict the rotation of the gears, so that the current viewing angle of the probe is fixed, which is beneficial for continuous observation and recording.

[0016] Furthermore, by setting a drive ring to drive the movement of the teeth and making them slide together, the teeth can move closer to or further away from the gear to switch between a rotatable state and a locked state.

[0017] (2) In this application, a paddle is provided to facilitate one-handed operation by the user, and a rubber pad is used to limit the paddle to maintain its current state when it is not subjected to external force by the user. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of the endoscope operating unit is shown;

[0019] Figure 2 A schematic diagram of the head structure is shown;

[0020] Figure 3 A schematic diagram of the control component is shown;

[0021] Figure 4 A schematic diagram of the slide and slider is shown;

[0022] Figure 5 It shows Figure 4 Enlarged view of point A in the image;

[0023] Figure 6 A schematic diagram of the paddle and rubber pad is shown.

[0024] Legend:

[0025] 110. Head; 111. Drum shaft; 112. Drum; 120. Handle; 200. Control assembly; 210. Gear; 220. Gear teeth; 221. Slide groove; 222. Slider; 230. Drive ring; 231. Slide rail; 240. Connecting tongue; 241. Vertical shaft; 250. Paddle; 251. Rubber pad. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0027] Figure 1 A schematic diagram of the overall structure of the endoscope operating unit is shown; Figure 2 A schematic diagram of the head 110 is shown; Figure 1 and Figure 2 The endoscope operating unit includes a head 110 and a handle 120 connected to each other. A drum 112 is rotatably connected to the head 110 via a drum shaft 111. In actual use, driving the drum 112 to rotate controls the bending of the probe to adjust the observation angle. A control component 200 is provided on the head 110 to limit the rotation of the drum shaft 111. By using the control component 200, the rotation of the drum shaft 111 can be limited, that is, the drum 112 can be locked, so that the current viewing angle of the probe is fixed, which is beneficial for continuous observation and recording.

[0028] Figure 3 A schematic diagram of the control component 200 is shown; Figure 3 In the control component 200, a gear 210, a meshing tooth 220, and a drive ring 230 are included. The gear 210 is coaxially connected to the drum shaft 111 and rotates synchronously with it. The gear 210 and drum shaft 111 are fixedly connected and rotate synchronously; that is, when the gear 210 is restricted and cannot rotate, the corresponding drum shaft 111 is also locked and cannot rotate. The meshing tooth 220 is slidably disposed on one side of the gear 210. The meshing tooth 220 is driven by an external force to move towards the gear 210 and engage with it for locking. The meshing tooth 220 and gear 210 are connected and locked together. When they come close together, they can mesh to lock gear 210. That is, the operator only needs to adjust the position of the teeth 220. When gear 210 and teeth 220 disengage, gear 210 returns to a rotatable state. The drive ring 230 surrounds gear 210 and teeth 220 and is eccentrically positioned relative to the drum shaft 111. The inner ring of the drive ring 230 presses against teeth 220. When the drive ring 230 rotates around the drum shaft 111, the distance between gear 210 and teeth 220 can be adjusted to switch between a rotatable state and a locked state. Figure 3As shown, C1 is the axis of the drum shaft 111, and C2 is the axis of the drive ring 230. However, the drive ring 230 rotates eccentrically with C1 as the rotation center. That is, when the drive ring 230 rotates, the distance between the drive ring 230 at the position corresponding to the meshing tooth 220 and the gear 210 is constantly changing. This will force the meshing tooth 220 to move towards the gear 210 as the drive ring 230 rotates, thus achieving meshing between the two. The meshing tooth 220 and the drive ring 230 are slidably connected by a connecting tongue 240. The tongue 240 extends into the drive ring 230, and two end faces of the tongue 240 have protruding vertical shafts 241 forming a T-shaped structure. The drive ring 230 has a corresponding slide 231. The drive ring 230 and the teeth 220 are indirectly connected by connecting the tongue 240 and the vertical shaft 241. This means that the rotation of the drive ring 230 can not only drive the teeth 220 to move closer to the gear 210, but also drive the teeth 220 away from the gear 210. The correlation between the two is closer and the transmission is more stable.

[0029] Figure 4 A schematic diagram of the structure of the groove 221 and the slider 222 is shown; Figure 5 It shows Figure 4 Enlarged view of point A in the image; Figure 4 and Figure 5 In the middle, the head 110 is provided with a groove 221 to limit the sliding trajectory of the bite tooth 220. The bite tooth 220 is slidably connected to the groove 221 through a slider 222. The extension line of the path of the groove 221 passes through the axis of the drum shaft 111. The slider 222 is connected to the bite tooth 220, and the slider 222 is slidably set in the groove 221 to limit the sliding trajectory of the bite tooth 220. By limiting the direction of the groove 221, the force applied by the bite tooth 220 toward the gear 210 can be directed toward the axis of the drum shaft 111, avoiding the gear 210 from rotating unexpectedly due to the eccentric force applied by the bite tooth 220.

[0030] Figure 6 A schematic diagram of the structure of the paddle 250 and the rubber pad 251 is shown; Figure 6 In the drive ring 230, a paddle 250 extends radially toward the side of the handle 120. With the paddle 250, the drive ring 230 can be driven to rotate by using only one finger, which is conducive to one-handed operation. The end face of the paddle 250 facing the head 110 has a rubber pad 251, and the paddle 250 generates damping with the head 110 through the rubber pad 251. The rubber pad 251 is squeezed and deformed, and at the same time, it applies a resistance to the rotation of the paddle 250. When the user paddles the paddle 250, he / she needs to apply force to overcome the resistance of the rubber pad 251. At the same time, when the external force applied by the user is removed, the rubber pad 251 can limit the paddle 250 to maintain the state in which the external force was applied.

[0031] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. An endoscope operating unit, comprising a head (110), wherein a drum (112) is rotatably connected to the head (110) via a drum shaft (111), characterized in that, The head (110) is provided with a control component (200) for limiting the rotation of the drum shaft (111), the control component (200) including a gear (210), a tooth (220) and a drive ring (230); The gear (210) is coaxially connected to the outside of the drum shaft (111) and rotates synchronously with it; The bite tooth (220) is slidably disposed on one side of the gear (210). The bite tooth (220) is driven by an external force to move toward the gear (210) and engage and lock with it. The drive ring (230) surrounds the gear (210) and the bite tooth (220) and is eccentrically arranged relative to the drum shaft (111). The inner ring of the drive ring (230) presses against the bite tooth (220). When the drive ring (230) rotates around the drum shaft (111), the distance between the gear (210) and the bite tooth (220) can be adjusted to switch between a rotatable state and a locked state.

2. The endoscope operating unit according to claim 1, characterized in that: The bite teeth (220) and the drive ring (230) are slidably connected by a connecting tongue (240). The connecting tongue (240) extends into the drive ring (230) and has a vertical shaft (241) protruding on both end faces to form a T-shaped structure. The drive ring (230) has a slide rail (231) corresponding to the T-shaped structure.

3. The endoscope operating unit according to claim 2, characterized in that: The head (110) is provided with a groove (221) that restricts the sliding trajectory of the bite teeth (220). The bite teeth (220) are slidably connected to the groove (221) through a slider (222). The extension line of the path of the groove (221) passes through the axis of the drum shaft (111).

4. The endoscope operating unit according to claim 3, characterized in that: It also includes a handle (120) connected to the head (110), and a lever (250) extends radially from the drive ring (230) toward the handle (120).

5. The endoscope operating unit according to claim 4, characterized in that: The paddle (250) has a rubber pad (251) on its end face facing the head (110), and the paddle (250) generates damping with the head (110) through the rubber pad (251).

6. An endoscope, characterized in that, It has an endoscope operating unit as described in any one of claims 1-5.

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