Endoscope handle structure for increasing rotation damping of insertion tube and endoscope

Abstract

The utility model discloses an endoscope handle structure capable of increasing rotation damping of an insertion tube and an endoscope. The endoscope handle structure capable of increasing rotation damping of the insertion tube comprises a handle and a connecting part, the connecting part is provided with a first end and a second end which are opposite in the first direction, the first end is rotationally connected to the handle along the axis in the first direction, and the second end is used for installing the insertion tube; wherein the first end and / or the handle are / is provided with a resistance part, so that damping force is generated between the first end and the handle when the connecting part rotates relative to the handle; after a user adjusts the position of the insertion pipe by rotating the connecting part, the first end is kept at the current position through damping force generated by the resistance part; the user operation difficulty can be reduced; and the detection and treatment accuracy and efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an endoscope handle structure and endoscope with increased damping for insertion tube rotation. Background Technology

[0002] An endoscope is a commonly used medical device, widely used in disease examination and surgical treatment in various departments. An endoscope typically includes a handle, an insertion tube, and a connector. The insertion tube is inserted into the patient's body to examine and treat the affected area. The handle is for medical personnel to grip, and the connector connects the insertion tube and the handle. The connector is rotatable relative to the handle, causing the insertion tube to rotate. However, after adjusting the insertion tube by rotating the connector, medical personnel need to maintain the same posture to ensure the insertion tube remains in the intended position. This not only increases the difficulty of operation for medical personnel but also, because the connector is so easily rotated, the insertion tube can easily be deflected, thus reducing the accuracy of examination and treatment. Utility Model Content

[0003] The main purpose of this invention is to propose an endoscope handle structure and endoscope with increased damping for the rotation of the insertion tube, in order to solve the problems of existing endoscopes being difficult for medical staff to operate and the insertion tube easily deviating from the predetermined position, resulting in reduced accuracy of detection and treatment.

[0004] To achieve the above objectives, this utility model proposes an endoscope handle structure that increases the rotational damping of the insertion tube, comprising:

[0005] Handle; and,

[0006] A connecting part having a first end and a second end opposite each other in a first direction, the first end being rotatably connected to the handle along its axis in the first direction, and the second end being used to install an insertion tube;

[0007] The first end and / or the handle are provided with a resistance part to generate a damping force between the first end and the handle when the connecting part rotates relative to the handle.

[0008] Preferably, one of the first end and the handle is provided with a plug hole, and the other is provided with a plug post that mates with the plug hole. The plug post is arranged along the first direction and can rotate axially within the plug hole.

[0009] The resistance portion is provided on the inner wall of the insertion hole and / or the outer wall of the insertion post, so that the insertion post is at least partially interference-fitted with the insertion hole.

[0010] Preferably, the endoscope handle structure with increased insertion tube rotation damping further includes a first limiting part and a first mating part for limiting cooperation. One of the first limiting part and the first mating part is disposed on the insertion post, and the other is disposed on the insertion hole to limit the displacement of the insertion post in its axial direction.

[0011] The first limiting portion is provided with the resistance portion so that the first limiting portion is at least partially in an interference fit with the first mating portion.

[0012] Preferably, the outer wall of the plug is provided with a limiting groove around its circumference, and the inner wall of the plug hole is provided with a limiting block. The limiting block is slidably installed in the limiting groove, and the limiting block and the limiting groove are in clearance fit.

[0013] The resistance part is provided on the inner wall of the limiting groove so that the limiting block is at least partially interference-fitted with the limiting groove;

[0014] The first limiting part includes the limiting groove, and the first mating part includes the limiting block.

[0015] Preferably, in the first direction, the limiting groove has a first groove wall facing the limiting block, and a protrusion is provided on the first groove wall, the protrusion abutting against the limiting block;

[0016] The resistance section includes a protrusion.

[0017] Preferably, the handle is provided with the insertion hole;

[0018] The first end is provided with the plug-in post, and the plug-in post is clearance-fitted with the plug-in hole;

[0019] The outer wall of the plug is provided with a protrusion, which abuts against the inner wall of the plug hole to make the plug and the plug hole partially interference fit, and the hardness of the protrusion is at least greater than the hardness of the connection part; wherein, the resistance part includes the protrusion.

[0020] Preferably, the first end is provided with a mounting groove;

[0021] One end of the plug is fixedly connected to the mounting groove, and the other end of the plug is rotatably installed in the plug hole. The protrusion is integrally formed on the outer wall of the plug, and the hardness of the plug is greater than that of the connecting part.

[0022] Preferably, a limiting groove is provided around the outer wall of the plug-in post in the circumferential direction, the limiting groove is provided near the other end of the plug-in post, and a limiting block is provided on the inner wall of the plug-in hole, the limiting block being slidably installed in the limiting groove;

[0023] In the first direction, the limiting groove has a first groove wall near the other end of the plug post, and a protrusion is provided on the first groove wall. The other end of the plug post can undergo local elastic deformation at the position corresponding to the protrusion.

[0024] Preferably, the other end of the plug is hollowed out at the position corresponding to the protrusion.

[0025] Preferably, the material of the connecting part includes silicone or rubber;

[0026] The protrusion is made of hard plastic.

[0027] Preferably, the outer wall of the insertion post and the inner wall of the insertion hole are provided with the resistance part and the other is provided with the locking part;

[0028] The plug has a locking position during its rotation stroke, and when the plug rotates to the locking position, the resistance part cooperates with the locking part to lock.

[0029] Preferably, the insertion post and the insertion hole are clearance-fitted, the resistance part includes a protrusion, and the locking part includes a locking groove, wherein:

[0030] The outer wall of the plug post has a protrusion, which can move radially along the plug post, and the inner wall of the plug hole has a locking groove.

[0031] When the plug is rotated to the locking position, the protrusion corresponds to the locking groove, and the protrusion extends radially along the plug and engages in the locking groove;

[0032] When the plug is rotated away from the locking position, the protrusion retracts radially along the plug and disengages from the locking groove, and the protrusion abuts against the inner wall of the plug hole.

[0033] Preferably, the plug is hollowed out at the position corresponding to the protrusion, so that the plug can undergo local elastic deformation at the position corresponding to the protrusion.

[0034] Preferably, a receiving groove is formed on the outer wall of the plug post, the protrusion is disposed in the receiving groove and partially protrudes from the opening of the receiving groove, and an elastic connector is provided between the protrusion and the bottom wall of the receiving groove so that the protrusion can extend and retract radially along the plug post within the receiving groove;

[0035] When the elastic connector is at its maximum compression, the height of the protrusion protruding from the receiving groove is greater than the distance between the plug post and the plug hole.

[0036] Preferably, the periphery of the locking groove is provided with an arc-shaped transition surface.

[0037] This utility model also provides an endoscope, including the above-mentioned endoscope handle structure with increased damping for insertion tube rotation.

[0038] The technical solution provided by this utility model has at least the following advantages:

[0039] This utility model provides an endoscope handle structure with increased rotational damping for the insertion tube, including a handle and a connecting part; the insertion tube is connected to the handle through the connecting part; the first end of the insertion tube is rotatably connected to the handle along its axis in a first direction; by providing a resistance part on the first end and / or the handle, a damping force is generated between the first end and the handle when the connecting part rotates relative to the handle; when the user adjusts the position of the insertion tube by rotating the connecting part, the resistance part generates a damping force between the first end and the handle, and the damping force keeps the first end in the current position; at this time, even if the user's hand is removed from the connecting part, the first end will not rotate arbitrarily, so the user does not need to hold it for fixation, thereby reducing the difficulty of user operation; and during detection and treatment, the damping force keeps the first end in the current position, thereby keeping the insertion tube in the predetermined position, thereby improving the accuracy and efficiency of detection and treatment. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0041] Figure 1 A schematic diagram of an embodiment of an endoscope handle structure (with one housing hidden therein) that increases the rotational damping of the insertion tube provided by this utility model;

[0042] Figure 2 for Figure 1 A magnified schematic diagram of part A of the described endoscope handle structure;

[0043] Figure 3 for Figure 1 An exploded view of the structure of the endoscope handle described above;

[0044] Figure 4 for Figure 3 A magnified schematic diagram of part B of the described endoscope handle structure;

[0045] Figure 5 for Figure 1A schematic diagram showing the positional relationship between the resistance part and the handle of the described endoscope handle structure;

[0046] Figure 6 for Figure 1 A schematic diagram of the connector of the described endoscope handle structure;

[0047] Figure 7 for Figure 6 An exploded view of the connector structure of the endoscope handle structure described above;

[0048] Figure 8 for Figure 1 A schematic diagram showing the relative positions of the protrusion and locking groove of the endoscope handle structure when the connector is out of the locking position;

[0049] Figure 9 for Figure 1 A schematic diagram showing the relative positions of the protrusion and locking groove of the endoscope handle structure when the connector is in the locked position.

[0050] Explanation of icon numbers:

[0051] 100 Endoscope handle structure with increased damping for insertion tube rotation; 1 handle; 11 housing; 2 connecting part; 21 first end; 22 second end; 3 resistance part; 31 protrusion; 41 insertion hole; 42 insertion post; 421 first end face; 5 locking part; 51 locking groove; 52 arc-shaped transition surface; 61 first limiting part; 611 limiting groove; 612 first groove wall; 62 first mating part; 621 limiting block; 622 first side wall; 71 first scale mark; 72 second scale mark; 81 second limiting part; 811 arc-shaped slide groove; 82 second mating part; 821 slider.

[0052] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0053] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0054] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0055] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0056] This invention provides an endoscope handle structure 100 with increased rotational damping of the insertion tube, which is suitable for use with endoscopes. Endoscopes typically also include an insertion tube (not shown in the figure), used for insertion into the patient's body for examination and treatment of affected areas. The endoscope handle structure 100 with increased rotational damping provides a grip for medical personnel, facilitating better examination and treatment.

[0057] Please see Figure 1 and Figure 2 The endoscope handle structure 100 with increased insertion tube rotation damping includes a handle 1 and a connecting part 2; the connecting part 2 has a first end 21 and a second end 22 opposite to each other in a first direction F1, the first end 21 is rotatably connected to the handle 1 along its axis in the first direction F1, and the second end 22 is used to install the insertion tube; wherein, the first end 21 and / or the handle 1 are provided with a resistance part 3 to generate a damping force between the first end 21 and the handle 1 when the connecting part 2 rotates relative to the handle 1.

[0058] It is understood that the first end 21 of the connecting part 2 is rotatably connected to the handle 1, and the second end 22 of the connecting part 2 is used to install the insertion tube. During use, medical personnel rotate the connecting part 2 to drive the insertion tube to rotate, thereby adjusting the position of the insertion tube so that the insertion tube can be accurately aligned with the affected area.

[0059] By providing the resistance part 3 on the first end 21 and / or the handle 1, a damping force is generated between the first end 21 and the handle 1 when the connecting part 2 rotates relative to the handle 1. After the medical staff adjusts the position of the insertion tube by rotating the connecting part 2, the resistance part 3 will generate a damping force between the first end 21 and the handle 1, which allows the first end 21 to remain in its current position. Thus, even if the medical staff's hand is removed from the connecting part 2, the first end 21 will not rotate arbitrarily, and the medical staff does not need to hold it in place, thereby reducing the difficulty of operation for the medical staff.

[0060] Furthermore, after medical personnel adjust the position of the insertion tube by rotating the connecting part 2, the damping force allows the first end 21 to remain in its current position. Thus, during detection and treatment, the insertion tube can be aligned with the affected area and held in that position, thereby improving the accuracy of detection and treatment. Moreover, in the prior art, because the connecting part 2 can rotate freely and requires medical personnel to hold it in place, the connecting part 2 is prone to causing the insertion part to deflect, requiring several position adjustments during detection and treatment. In this invention, the connecting part 2, once adjusted, can remain in that position, thereby reducing the number of adjustments required and improving the efficiency of detection and treatment.

[0061] This application does not impose specific restrictions on the location of the resistance part 3. The resistance part 3 may be located on the first end 21 of the connecting part 2; the resistance part 3 may be located on the handle 1; or the resistance part 3 may be located on both the first end 21 and the handle 1.

[0062] This application does not impose specific limitations on the connection structure between the handle 1 and the connecting part 2. One of the first end 21 and the handle 1 is provided with a insertion hole 41, and the other is provided with a insertion post 42 that mates with the insertion hole 41. The insertion post 42 is disposed along the first direction F1 and can rotate axially F1 within the insertion hole 41. In one embodiment, the handle 1 is provided with the insertion hole 41, and the first end 21 of the connecting part 2 is provided with the insertion post 42, which is inserted into the insertion hole 41. In another embodiment, the handle 1 is provided with the insertion post 42, and the first end 21 of the connecting part 2 is provided with the insertion hole 41, with the insertion post 42 inserted into the insertion hole 41.

[0063] When the plug 42 is inserted into the plug hole 41, the plug 42 can rotate within the plug hole 41 along its axial direction F1. By providing the resistance part 3 on the inner wall of the plug hole 41 and / or the outer wall of the plug 42, the plug 42 is at least partially press-fitted with the plug hole 41. Thus, when the plug 42 rotates relative to the plug hole 41, the contact pressure between the plug 42 and the plug hole 41 can be converted into a damping force, thereby allowing the connecting part 2 to remain in its current position when the medical staff's hand is removed from the connecting part 2.

[0064] Following the aforementioned embodiment where "the first end 21 is provided with the insertion post 42, and the handle 1 is provided with the insertion hole 41," the handle 1 can be formed by splicing together at least two outer shells 11, with the two outer shells 11 jointly defining the mounting cavity of the handle 1; and one end of the mounting cavity is provided with an opening, thereby forming the insertion hole 41. Taking "the handle 1 is formed by splicing together two outer shells 11" as an example, the insertion post 42 is provided with two resistance parts 3, which are arranged at intervals along the circumference of the insertion post 42 to act on the two outer shells 11 respectively. The accompanying drawings provided by this utility model retain one of the outer shells 11 and hide the other outer shell 11 to show the connection between the handle 1 and the connecting part 2.

[0065] This application does not impose specific restrictions on the location of the resistance part 3. The resistance part 3 may be disposed on the inner wall of the insertion hole 41; the resistance part 3 may be disposed on the outer wall of the insertion post 42; the resistance part 3 may also be disposed on both the inner wall of the insertion hole 41 and the outer wall of the insertion post 42.

[0066] It is understood that the connecting part 2 and the handle 1 are rotatably connected through the insertion and engagement of the insertion hole 41 and the insertion post 42. In addition to rotating along its axial direction F1 within the insertion hole 41, the insertion post 42 can also move linearly along its axial direction F1, thereby causing a positional offset of the insertion post 42 along its axial direction F1.

[0067] Considering the insertion stability of the plug post 42 and the plug hole 41, in the embodiments of this utility model, please refer to... Figure 3 The endoscope handle structure 100 further includes a first limiting part 61 and a first mating part 62 for limiting and cooperating. One of the first limiting part 61 and the first mating part 62 is disposed on the insertion post 42, and the other is disposed on the insertion hole 41 to limit the displacement of the insertion post 42 in its axial direction F1. The first limiting part 61 is provided with the resistance part 3 so that the first limiting part 61 is at least partially pressurized with the first mating part 62.

[0068] Regarding the configuration of the first limiting part 61 and the first mating part 62, specifically, one of the first limiting part 61 and the first mating part 62 is configured as a limiting groove 611, and the other is configured as a limiting block 621; the limiting groove 611 extends circumferentially along the insertion post 42 or the insertion hole 41, and the limiting block 621 is slidably installed in the limiting groove 611; thus, it does not affect the rotation of the insertion post 42 along its central axis in the insertion hole 41, and it can limit the displacement of the insertion post 42 in its axial direction F1, thereby improving the insertion stability of the insertion post 42 and the insertion hole 41.

[0069] This application does not impose specific restrictions on the placement of the limiting groove 611 and the limiting block 621. In one embodiment, the limiting groove 611 is arranged around the outer periphery of the insertion post 42, and the limiting block 621 protrudes from the inner wall of the insertion hole 41; in another embodiment, the limiting groove 611 is disposed on the inner wall of the insertion hole 41 and is arranged around the circumference of the insertion hole 41, and the limiting block 621 protrudes from the outer wall of the insertion post 42.

[0070] Furthermore, this application does not impose specific restrictions on the location of the resistance part 3. The resistance part 3 can be disposed on the inner wall of the limiting groove 611, or on the outer wall of the limiting block 621; as long as the limiting block 621 can at least partially interfere with the limiting groove 611.

[0071] Please see Figure 3 , Figure 6 and Figure 7 In an exemplary embodiment, the outer wall of the insertion post 42 is provided with a limiting groove 611 around its circumference, and the inner wall of the insertion hole 41 is provided with a limiting block 621. The limiting block 621 is slidably installed in the limiting groove 611, and the limiting block 621 is clearance-fitted with the limiting groove 611. The resistance part 3 is provided on the inner wall of the limiting groove 611 so that the limiting block 621 is at least partially interference-fitted with the limiting groove 611. The first limiting part 61 includes the limiting groove 611, and the first mating part 62 includes the limiting block 621.

[0072] Specifically, in the first direction F1, the limiting groove 611 has a first groove wall 612 facing the limiting block 621, and a protrusion 31 is provided on the first groove wall 612, the protrusion 31 abutting against the limiting block 621; wherein, the resistance part 3 includes the protrusion 31.

[0073] This application does not impose specific limitations on the structure of the resistance part 3. In one embodiment, the resistance part 3 is configured as a rotary damper, which is disposed on the inner wall of the insertion hole 41 and / or the outer wall of the insertion post 42. When a medical staff member rotates the connecting part 2 to a predetermined position, the medical staff member's hand is disengaged from the connecting part 2, and the rotary damper generates a damping force between the insertion hole 41 and the insertion post 42, thereby keeping the connecting part 2 in its current position. It should be noted that the rotary damper is prior art and will not be described in detail here.

[0074] In another embodiment, please refer to Figure 2 and Figure 3 The handle 1 is provided with the insertion hole 41; the first end 21 is provided with the insertion post 42, and the insertion post 42 is clearance-fitted with the insertion hole 41; the outer wall of the insertion post 42 is provided with a protrusion 31, and the protrusion 31 abuts against the inner wall of the insertion hole 41 so that the insertion post 42 and the insertion hole 41 are partially interference-fitted, and at least the hardness of the protrusion 31 is greater than the hardness of the connecting part 2; wherein, the resistance part 3 includes the protrusion 31.

[0075] In this embodiment, the plug 42 is inserted into the plug hole 41 and can rotate within the plug hole 41. The plug 42 and the plug hole 41 are clearance-fitted. A protrusion 31 protrudes from the outer wall of the plug 42, and the protrusion 31 abuts against the inner wall of the plug hole 41. That is, the plug 42 and the plug hole 41 are interference-fitted at the position where the protrusion 31 is provided. After the connector rotates to the predetermined position, the contact pressure generated between the protrusion 31 and the inner wall of the plug hole 41 is converted into a damping force between the plug 42 and the plug hole 41, thereby allowing the connecting part 2 to remain in the current position.

[0076] Furthermore, for ease of assembly, the handle 1 is typically made of hard plastic, but is not limited to this; the connecting part 2 is made of silicone or rubber to give it greater flexibility and deformation, allowing it to be assembled with the handle 1. If the material of the protrusion 31 is the same as that of the connecting part 2, the protrusion 31 is easily deformed by compression during actual use, which affects the user's feel. Also, because the protrusion 31 is easily deformed by compression, the contact pressure between the protrusion 31 and the inner wall of the insertion hole 41 is unstable, resulting in unstable damping force between the insertion post 42 and the insertion hole 41, affecting the position retention effect of the connecting part 2.

[0077] By setting the hardness of at least the protrusion 31 to be greater than that of the connecting part 2, the protrusion 31 itself is not easily deformed. When it is between the plug post 42 and the plug hole 41, the protrusion 31 can maintain its shape when it abuts against the inner wall of the plug hole 41. This ensures that when the plug post 42 rotates relative to the plug hole 41, the contact pressure generated between the protrusion 31 and the inner wall of the plug hole 41 is uniform. This makes the damping force between the plug post 42 and the plug hole 41 uniform and stable, thereby improving the position holding effect of the connecting part 2 and achieving the purpose of stopping the connecting part 2 as soon as it is released.

[0078] This utility model does not impose specific limitations on the formation method of the protrusion 31. The protrusion 31 can be separately provided from the plug post 42 and assembled onto the plug post 42; the protrusion 31 can be integrally formed with the plug post 42.

[0079] In one exemplary embodiment, please refer to Figures 6 to 9 The first end 21 is provided with an installation groove 211; one end of the plug post 42 is fixedly connected to the installation groove 211, and the other end of the plug post 42 is rotatably installed in the plug hole 41. The protrusion 31 is integrally formed on the outer wall of the plug post 42, and the hardness of the plug post 42 is greater than the hardness of the connecting part 2.

[0080] Since the protrusion 31 is integrally formed with the insertion post 42, the overall hardness of the insertion post 42 is greater than that of the connecting part 2. Following the above embodiment where "in order to limit the insertion post 42 in the axial direction, a limiting groove 611 and a limiting block 621 are correspondingly provided on the insertion post 42 and the insertion hole 41 for limiting cooperation," in the first direction F1, the limiting groove 611 has a first groove wall 612 facing the limiting block 621, and the protrusion 31 protrudes from the first groove wall 612, the protrusion 31 abutting against the limiting block 621. Since both the protrusion 31 and the limiting block 621 have high hardness, when the protrusion 31 abuts against the limiting block 621, the compressive force on the protrusion 31 will be too great, which may very likely damage the protrusion 31.

[0081] To prevent the protrusion 31 from being damaged by excessive pressure, in some embodiments, a limiting groove 611 is provided around the outer wall of the plug post 42 in the circumferential direction. The limiting groove 611 is located near the other end of the plug post 42. A limiting block 621 protrudes from the inner wall of the plug hole 41 and is slidably installed in the limiting groove 611. In the first direction F1, the limiting groove 611 has a first groove wall 612 near the other end of the plug post 42. The first groove wall 612 has a protrusion 31 protruding from it. The other end of the plug post 42 can undergo local elastic deformation at the position corresponding to the protrusion 31.

[0082] By setting the insertion post 42 to locally undergo elastic deformation at the position corresponding to the protrusion 31, part of the compressive force on the protrusion 31 on the limiting block 621 can be released through the deformation of the insertion post 42, thereby alleviating the excessive compressive force between the protrusion 31 and the limiting block 621.

[0083] This utility model does not specify the deformation method of the plug post 42; in one embodiment, the other end of the plug post 42 is hollowed out at the position corresponding to the protrusion 31; it can be known that the plug post 42 is made of rigid plastic. By setting a part of the plug post 42 to be hollowed out, the strength at that position is reduced, making the plug post 42 more prone to deformation at the hollowed-out position.

[0084] In one embodiment, the other end of the plug post 42 is provided with a through elongated hole 422. In the axial direction of the plug post 42, the elongated hole 422 corresponds to the position of the protrusion 31. In the radial direction of the plug post 42, the elongated hole 422 and the protrusion 31 are misaligned. By providing the elongated hole 422, the other end of the plug post 42 is partially hollowed out at the position corresponding to the protrusion 31.

[0085] This utility model does not impose specific limitations on the fixing method of the first end 21 and the plug post 42. For details, please refer to [link / reference needed]. Figure 7 The endoscope handle structure 100 further includes a first guide portion and a second guide portion. One of the first guide portion and the second guide portion is configured as a guide groove 423, and the other is configured as a guide post 23. The first guide portion is disposed on the insertion post 42, and the second guide portion is disposed on the inner wall of the mounting groove 211.

[0086] In an exemplary embodiment, the plug-in post 42 is provided with a plurality of guide grooves 423, which are arranged at intervals along the circumference of the plug-in post 42 and extend along the axial direction of the plug-in post 42; a plurality of guide posts 23 protrude from the inner wall of the mounting groove 211, which are arranged at intervals along the circumference of the mounting groove 211, and each guide post 23 corresponds to one guide groove 423, and extends along the axial direction of the plug-in post 42.

[0087] When one end of the plug 42 is inserted into the mounting groove 211, on the one hand, the guide post 23 and the guide groove 423 provide guidance for the plug 42; on the other hand, the guide post 23 and the guide groove 423 limit the plug 42 to rotate axially within the mounting groove 211, thereby fixing the first end 21 and the plug 42.

[0088] The present invention does not impose specific limitations on the shape of the protrusion 31. The protrusion 31 can be set as a hemispherical shape, the protrusion 31 can be set as a semi-cylindrical shape, the protrusion 31 can also be set as a square or irregular shape.

[0089] Understandably, the insertion post 42 can rotate within the insertion hole 41. Simultaneously, the design of the resistance part 3 ensures that the insertion post 42 is at least partially press-fitted with the insertion hole 41, and the contact pressure between the insertion post 42 and the insertion hole 41 is converted into damping force. Because the insertion post 42 can rotate within the insertion hole 41, even when the endoscope is idle, it can still rotate under external force. This increases the number of friction cycles of the resistance part 3, accelerating its wear and ultimately causing it to fail and shortening its service life.

[0090] In view of the above problems, in one embodiment of this utility model, please refer to Figures 4 to 8 The outer wall of the plug post 42 and the inner wall of the plug hole 41 are provided with the resistance part 3 and the other is provided with the locking part 5; the plug post 42 has a locking position during its rotation stroke, and when the plug post 42 rotates to the locking position, the resistance part 3 and the locking part 5 cooperate to lock.

[0091] In other words, when the endoscope is idle, the insertion post 42 can be rotated to the locking position, and the resistance part 3 and the locking part 5 cooperate to lock it; thus, when the endoscope is idle, the rotating part is prevented from rotating, thereby reducing the wear of the resistance part 3 and extending the service life of the endoscope handle structure 100.

[0092] Specifically, please refer to Figure 8 and Figure 9 The outer wall of the plug post 42 is provided with a protrusion 31, which can move radially along the plug post 42. The inner wall of the plug hole 41 is provided with a locking groove 51. When the plug post 42 is rotated to the locking position, the protrusion 31 corresponds to the locking groove 51, the protrusion 31 extends radially along the plug post 42 and is engaged in the locking groove 51. When the plug post 42 is rotated away from the locking position, the protrusion 31 retracts radially along the plug post 42 and disengages from the locking groove 51, and the protrusion 31 partially retracts and abuts against the inner wall of the plug hole 41.

[0093] This application does not impose specific limitations on the manner in which the protrusion 31 is made movable. It may be that the insertion post 42 is partially configured to be elastically deformable, and the movement of the protrusion 31 is achieved through the elastic deformation of the insertion post 42; alternatively, the protrusion 31 may be combined with an elastic connector to achieve the movement of the protrusion 31.

[0094] In one embodiment, the plug post 42 is hollowed out at the position corresponding to the protrusion 31, so that the plug post 42 can undergo local elastic deformation at the position corresponding to the protrusion 31.

[0095] Specifically, please refer to Figure 5 The protrusion 31 protrudes from the outer wall of the plug post 42. The plug post 42 can undergo local elastic deformation at the position corresponding to the protrusion 31. Since the plug post 42 will undergo elastic deformation under force, when the protrusion 31 disengages from the locking groove 51, the protrusion 31 is squeezed against the inner wall of the plug hole 41, and the plug post 42 is locally compressed and deformed, so that the protrusion 31 can release part of the contact pressure. At the same time, the friction and part of the contact pressure between the protrusion 31 and the inner wall of the plug hole 41 can be converted into damping force.

[0096] When the plug post 42 rotates to the locking position, the protrusion 31 corresponds to the locking groove 51. At this time, the locking groove 51 provides a receiving space for the protrusion 31, the contact pressure on the protrusion 31 is removed, the plug post 42 elastically resets, and pushes the protrusion 31 to extend radially along the plug post 42 and engage in the locking groove 51, thereby cooperating with the locking groove 51.

[0097] In another embodiment, a receiving groove is formed on the outer wall of the plug post 42, and the protrusion 31 is disposed in the receiving groove and partially protrudes from the opening of the receiving groove. An elastic connector is provided between the protrusion 31 and the bottom wall of the receiving groove so that the protrusion 31 can expand and contract within the receiving groove. When the elastic connector is at its maximum compression, the height H1 of the protrusion 31 protruding from the opening of the receiving groove is greater than the distance H2 between the plug post 42 and the plug hole.

[0098] When the protrusion 31 disengages from the locking groove 51, under the squeezing force of the inner wall of the insertion hole 41, the protrusion 31 will compress the elastic connector. The reaction force of the elastic connector on the protrusion 31 will press the protrusion 31 against the inner wall of the insertion hole 41. When the insertion post 42 rotates to the locking position, the protrusion 31 corresponds to the locking groove 51. At this time, the locking groove 51 provides a space for the protrusion 31. The elastic potential energy released by the elastic connector acts on the protrusion 31, pushing the protrusion 31 into the locking groove 51.

[0099] As described above, when the endoscope is not needed, the insertion post 42 can be rotated to the locking position, where the protrusion 31 corresponds to the locking groove 51, and the protrusion 31 extends partially into the locking groove 51 for locking engagement; when the endoscope needs to be used, the insertion post 42 can be rotated to leave the locking position, and the protrusion 31 disengages from the locking groove 51.

[0100] To reduce wear on the protrusion 31 during use and improve the user experience for healthcare workers, in one embodiment, please refer to... Figure 4 The locking groove 51 has an arc-shaped transition surface 52 around its opening. Thus, when the connecting part 2 is rotated away from the locking position, the protrusion 31 can smoothly disengage from the locking groove 51 via the arc-shaped transition surface 52. This improves the user experience for medical staff and reduces friction between the protrusion 31 and the periphery of the locking groove 51, thereby reducing wear on the protrusion 31.

[0101] Following the above description of "setting a locking groove 51 that mates with the protrusion 31", the limiting block 621 has a first sidewall 622 facing the protrusion 31, and the locking groove 51 is disposed on the first sidewall 622 so that when the insertion post 42 is rotated to the locking position, the protrusion 31 can lock and engage with the locking groove 51.

[0102] In practical applications, the connecting part 2 needs to drive the insertion tube to rotate in both directions within a certain angle. To avoid excessive rotation of the connecting part 2 in the same direction, please refer to the embodiments of this utility model. Figure 3 The endoscope handle structure 100 further includes a second limiting part 81 and a second mating part 82 for limiting cooperation. One of the second limiting part 81 and the second mating part 82 is disposed on the insertion post 42, and the other is disposed on the insertion hole 41 to limit the rotation angle of the insertion post 42.

[0103] Regarding the configuration of the second limiting part 81 and the second mating part 82, specifically, the insertion post 42 has a first end face 421 facing away from the first end 21, and an arc-shaped sliding groove 811 is provided on the first end face 421. The arc-shaped sliding groove 811 extends circumferentially along the insertion post 42. A slider 821 is provided on the inner wall of the insertion hole 41. The slider 821 is slidably installed in the arc-shaped sliding groove 811, and the arc-shaped sliding groove 811 forms the second limiting part 81 on the two side walls in the circumferential direction of the insertion post 42. The slider 821 forms the second mating part 82. In this way, by limiting the sliding stroke of the slider 821 in the arc-shaped sliding groove 811, the maximum rotation angle of the insertion post 42 relative to the insertion hole 41 is controlled.

[0104] Considering that in actual use, the rotating part is needed to drive the insertion tube to rotate so that the insertion tube can be accurately aligned with the affected area; for the convenience of medical personnel, please refer to the embodiments of this utility model. Figure 3 The endoscope handle structure 100 further includes a first scale mark 71 and a second scale mark 72. The first scale mark 71 is disposed on the outer wall of the connecting part 2 and near the first end 21. The second scale mark 72 is disposed on the outer wall of the handle 1 and near the connection between the handle 1 and the connecting part 2. One of the first scale mark 71 and the second scale mark 72 is configured as a plurality of numerical marks, and the other is configured as a pointer mark.

[0105] By setting the first scale mark 71 and the second scale mark 72, the specific rotation angle of the connecting part 2 relative to the handle 1 can be known. After using the endoscope, medical staff can quickly rotate the rotating part to the locked position according to the first scale mark 71 and the second scale mark 72. At the same time, during the use of the endoscope, medical staff can intuitively see the limit position of the rotation of the connecting part 2 according to the first scale mark 71 and the second scale mark 72, preventing medical staff from over-rotating the connecting part 2.

[0106] This utility model also provides an endoscope, which includes an endoscope handle structure 100 that increases the rotational damping of the insertion tube. It should be noted that the endoscope handle structure 100 that increases the rotational damping of the insertion tube is configured as the aforementioned endoscope handle structure 100, thus including all the technical features of the aforementioned endoscope handle structure 100. Therefore, the endoscope also includes all the technical features of the aforementioned endoscope handle structure 100, and thus possesses all the technical effects brought about by the aforementioned technical features, which will not be elaborated further here.

[0107] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. An endoscope handle structure for increasing rotation damping of an insertion tube, characterized by, The utility model relates to an endoscope handle structure for increasing the rotation damping of an insertion tube, comprising: a handle; and a connecting part having opposite first and second ends in a first direction, the first end being rotationally connected to the handle along its axis in the first direction, and the second end being used for mounting the insertion tube; wherein the first end and / or the handle are provided with a resistance part to generate a damping force between the first end and the handle when the connecting part rotates relative to the handle.

2. The endoscope handle structure for increasing rotational damping of an insertion tube according to claim 1, characterized by One of the first end and the handle is provided with a plug-in hole, and the other is provided with a plug-in post matched with the plug-in hole, the plug-in post being arranged along the first direction and being rotationally arranged in the plug-in hole along its axis; the resistance part is arranged on the inner wall of the plug-in hole and / or the outer wall of the plug-in post to make the plug-in post at least partially interference-fitted with the plug-in hole.

3. The endoscope handle structure according to claim 2, wherein The endoscope handle structure for increasing the rotation damping of an insertion tube further comprises a first limiting part and a first matching part in limiting cooperation, one of which is arranged on the plug-in post, and the other is correspondingly arranged on the plug-in hole to limit the displacement of the plug-in post in its axial direction; the resistance part is arranged on the first limiting part to make the first limiting part at least partially interference-fitted with the first matching part.

4. The endoscope handle structure according to claim 3, wherein The outer wall of the plug-in post is annularly provided with a limiting groove in its circumferential direction, the inner wall of the plug-in hole is protrudingly provided with a limiting block, the limiting block is slidingly arranged in the limiting groove, and the limiting block and the limiting groove are in clearance cooperation; the resistance part is arranged on the inner wall of the limiting groove to make the limiting block at least partially interference-fitted with the limiting groove; wherein the first limiting part comprises the limiting groove, and the first matching part comprises the limiting block.

5. The endoscope handle structure for increasing the rotational damping of the insertion tube according to claim 4, characterized by In the first direction, the limiting groove has a first groove wall facing the limiting block, the first groove wall is protrudingly provided with a protrusion, and the protrusion is in abutment with the limiting block; wherein the resistance part comprises the protrusion.

6. The endoscope handle structure for increasing rotational damping of an insertion tube according to claim 2, characterized by The handle is provided with the plug-in hole; the plug-in post is arranged on the first end, and the plug-in post is in clearance cooperation with the plug-in hole; the outer wall of the plug-in post is protrudingly provided with a protrusion, the protrusion is in abutment with the inner wall of the plug-in hole to make the plug-in post partially interference-fitted with the plug-in hole, and at least the hardness of the protrusion is greater than the hardness of the connecting part; wherein the resistance part comprises the protrusion.

7. The endoscope handle structure according to claim 6, wherein The first end is provided with a mounting groove; one end of the plug-in post is fixedly connected in the mounting groove, the other end of the plug-in post is rotationally arranged in the plug-in hole, the protrusion is integrally formed on the outer wall of the plug-in post, and the hardness of the plug-in post is greater than the hardness of the connecting part.

8. The endoscope handle structure according to claim 7, wherein The outer wall of the plug-in post is annularly provided with a limiting groove in its circumferential direction, the limiting groove is arranged close to the other end of the plug-in post, the inner wall of the plug-in hole is protrudingly provided with a limiting block, and the limiting block is slidingly arranged in the limiting groove; in the first direction, the limiting groove has a first groove wall close to the other end of the plug-in post, the first groove wall is protrudingly provided with a protrusion, and the other end of the plug-in post can be elastically deformed at a position corresponding to the protrusion.

9. The endoscope handle structure according to claim 8, wherein The other end of the plug-in post is provided in a hollow manner at a position corresponding to the protrusion.

10. The endoscope handle structure for increasing rotational damping of an insertion tube according to claim 6, characterized by, The material of the connecting part includes silica gel or rubber; The material of the protrusion includes hard plastic.

11. The endoscope handle structure for increasing rotational damping of an insertion tube according to claim 2, characterized by One of the outer wall of the insertion column and the inner wall of the insertion hole is provided with the resistance part, and the other is provided with the locking part; The insertion column has a locking position in its rotation stroke, and the resistance part cooperates with the locking part to lock when the insertion column rotates to the locking position.

12. The endoscope handle structure according to claim 11, wherein The insertion column and the insertion hole are gap-fitted, the resistance part includes a protrusion, and the locking part includes a locking groove, wherein: The protrusion is protruded on the outer wall of the insertion column and is movable along the radial direction of the insertion column, and the locking groove is provided on the inner wall of the insertion hole; When the insertion column rotates to the locking position, the protrusion corresponds to the position of the locking groove, the protrusion extends along the radial direction of the insertion column and is clamped in the locking groove; When the insertion column rotates away from the locking position, the protrusion retracts along the radial direction of the insertion column and is separated from the locking groove, and the protrusion abuts against the inner wall of the insertion hole.

13. The endoscope handle structure according to claim 12, wherein The insertion column is hollow at the position corresponding to the protrusion, so that the insertion column can locally elastically deform at the position corresponding to the protrusion.

14. The endoscope handle structure for increasing rotational damping of an insertion tube according to claim 12, characterized by, The outer wall of the insertion column is provided with a receiving groove, the protrusion is arranged in the receiving groove and partially protrudes from the groove opening of the receiving groove, and an elastic connecting piece is arranged between the protrusion and the bottom wall of the receiving groove to enable the protrusion to stretch and contract along the radial direction of the insertion column in the receiving groove; When the elastic connecting piece is at the maximum compression amount, the height of the protrusion protruding from the groove opening of the receiving groove is greater than the distance between the insertion column and the insertion hole.

15. The endoscope handle structure for increasing rotational damping of an insertion tube according to claim 12, characterized by, The groove opening of the locking groove is provided with an arc-shaped transition surface.

16. An endoscope, characterized by An endoscope handle structure for increasing the rotation damping of an insertion tube, comprising the endoscope handle structure according to any one of claims 1 to 15.

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