Insertion part and endoscope

Abstract

The invention relates to the technical field of endoscopes, and particularly discloses an insertion part and an endoscope, the disclosed insertion part comprises a snake bone and a first supporting piece, the first supporting piece is arranged in the snake bone in a penetrating mode, the far end of the first supporting piece is fixedly connected with the far end of the snake bone, the first supporting piece is located on the first side of the snake bone, and the second supporting piece is located on the second side of the snake bone. The first supporting piece is configured to allow the snake bone to bend towards the second side and limit the snake bone to bend towards the first side, and the first side and the second side are the two sides, opposite in the radial direction, of the snake bone; according to the scheme, after the snake bone is bent towards the second side, the first supporting piece can prevent the snake bone from being bent towards the first side, and even if the back side of the snake bone in the bending direction is subjected to certain abutting action force, the snake bone can be kept in a relatively determined bending posture; therefore, an operator can perform stable surgical operation through the snake bone with the stable bending posture, so that the convenience and stability of the surgical operation are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and in particular to an insertion portion and an endoscope. Background Art

[0002] An endoscope is a medical device that inserts an insertion part into the human body and observes the internal tissues of the human body through a camera module at the distal end of the insertion part. It can help doctors determine the location of lesions in the patient's body and the tissue structure characteristics of the lesion location. An endoscope includes an operating handle and an insertion part. In actual operation, the traction wheel is driven to rotate by turning the lever on the operating handle to adjust the posture of the active bending section of the insertion part, thereby adjusting the direction of the distal module to achieve fixed-point observation and other functions.

[0003] In related art, see Figure 1 After the operator controls the active bending section to reach a certain bending posture, due to the extremely narrow cavity in the human body, the active bending section is easily in contact with the inner wall of the human cavity on the dorsal side of its bending direction. When the operator performs the surgical operation, the dorsal side of the active bending section is easily subjected to the abutting force F exerted by the inner wall of the cavity, causing the middle part of the active bending section to bend and collapse inward, thereby making the active bending section present an S-shaped bending state, which is not conducive to the operator's precise operation. For example, when performing tracheal intubation, it is difficult for the operator to use the active bending section in the bent state to effectively lift the epiglottis cartilage to expose the glottis, resulting in a problem of poor surgical convenience. Summary of the invention

[0004] The present invention discloses an insertion part and an endoscope to solve the above technical problems existing in the related art.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions: In a first aspect, the present application provides an insertion portion for use in an endoscope, wherein the disclosed insertion portion includes a snake bone and a first support member, wherein the first support member is inserted into the snake bone, and the distal end of the first support member is connected and fixed to the distal end of the snake bone, the first support member is located on a first side of the snake bone, and the first support member is configured to allow the snake bone to bend toward a second side while limiting the bending of the snake bone toward the first side, and the first side and the second side are two radially opposite sides of the snake bone.

[0006] Furthermore, the first support member is a strip-shaped component, and is provided with a first clamping groove distributed along its axial direction. The side wall of the snake bone is provided with a first clamping strip that is radially recessed inward, and the first clamping groove and the first clamping strip are limitedly matched to limit the bending of the snake bone toward the first side.

[0007] Furthermore, the insertion portion also includes an unlocking component, which is connected to the first support member, and the unlocking component is configured to release the limiting effect of the first support member on the snake bone.

[0008] Further, the unlocking assembly includes a traction member, which includes a traction section and an unlocking section, wherein the unlocking section is located inside the snake bone, and the unlocking section is located radially outside the first support member, the traction section is connected to the unlocking section, and the traction section is configured to pull the unlocking section to undergo radial deformation, thereby separating the first card strip and the first card slot.

[0009] Furthermore, the insertion portion further includes a second support member, the second support member is located on a second side of the snake bone, and the second support member is configured to allow the snake bone to bend toward the first side while limiting the snake bone from bending toward the second side.

[0010] Furthermore, the second support member is a strip-shaped component, and a second clamping groove distributed along its axial direction is provided on the second support member, and a second clamping strip recessed radially inward is provided on the side wall of the snake bone, and the second clamping groove and the second clamping strip are limitedly cooperated to limit the bending of the snake bone toward the second side, and the unlocking component is also connected to the second support member, and the unlocking component is also configured to release the limiting effect of the second support member on the snake bone.

[0011] Furthermore, the first clamping strip and the second clamping strip are formed by radially inwardly punching the side wall of the snake bone.

[0012] Furthermore, the side wall of the snake bone is also provided with a guide groove distributed along its circumference, and the guide groove is formed by radially inwardly stamping the side wall of the snake bone. The unlocking section is inserted into the guide groove, so that the unlocking section is extended in a ring shape.

[0013] Furthermore, the unlocking component also includes a sleeve, the sleeve is fixedly connected to the snake bone, and the traction section is inserted into the sleeve.

[0014] In a second aspect, the present application also provides an endoscope, comprising an operating handle and the aforementioned insertion portion, wherein the proximal end of the insertion portion is connected to the operating handle.

[0015] The technical solution adopted by the present invention can achieve the following beneficial effects: The insertion portion and endoscope of the present application, after the snake bone is bent to the second side, based on the limiting effect of the first support member on the snake bone, even if the snake bone is subjected to a certain abutment force on the dorsal side of its bending direction, can prevent any part of the snake bone from bending to the first side, that is, the snake bone can be kept in a relatively certain bending posture by the provision of the first support member. The stability of the bending posture of the snake bone can help the operator to perform stable surgical operations. For example, during tracheal intubation, the operator can use the snake bone in a bent state to assist in lifting the epiglottis cartilage to expose the glottis, thereby improving the convenience and stability of the surgical operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 is a schematic diagram of a snake bone in a bent state in the related art; Figure 2 It is one of the structural schematic diagrams of the insertion part of the embodiment of the present application; Figure 3 yes Figure 2 A local enlarged schematic diagram of the middle A; Figure 4 This is the second structural schematic diagram of the insertion part of the embodiment of the present application; Figure 5 yes Figure 4 A partial enlarged schematic diagram of point B in the middle; Figure 6 This is the third structural schematic diagram of the insertion part of the embodiment of the present application.

[0018] In the figure: 100, snake bone; 110, first clamping strip; 120, second clamping strip; 130, guide groove; 200, first support member; 210, first clamping slot; 300, unlocking assembly; 310, traction member; 311, traction section; 312, unlocking section; 320, sleeve; 400, second support member; 410, second clamping slot; F, abutting force. DETAILED DESCRIPTION

[0019] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0020] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0021] The following is combined with Figures 2 to 6 , the insertion part and the endoscope provided in the embodiments of the present application are described in detail through specific embodiments and their application scenarios.

[0022] See also Figure 2 The embodiment of the present application discloses an insertion part, which is applied to an endoscope to probe into a human body cavity to observe the lesion site, so as to facilitate doctors to make accurate diagnosis of the patient's disease. Specifically, the disclosed insertion part includes a snake bone 100 and a first support member 200, wherein the snake bone 100 is arranged at the distal end of the insertion part to serve as an active bending section of the insertion part, and the operator can control the active bending section to bend through the operating handle of the endoscope. In the embodiment of the present application, the snake bone 100 can provide an installation basis for the first support member 200, and the first support member 200 is inserted into the snake bone 100. Exemplarily, the snake bone 100 can be a riveted snake bone or an integrally cut snake bone, and the first support member 200 can be a first support member 200. 00 can be a strip-shaped component, the first support member 200 is arranged on the first side of the snake bone 100 and extends along the axial direction of the snake bone 100, the first support member 200 is connected and fixed to the distal end of the snake bone 100, when the snake bone 100 bends toward the second side, the first support member 200 bends toward the second side synchronously, and when the snake bone 100 bends toward the first side, the first support member 200 can bend against the snake bone limiter, thereby limiting the bending of the snake bone 100 toward the first side, the first side and the second side are two sides of the snake bone 100 that are radially opposite.

[0023] It can be understood that the first support member 200 in the embodiment of the present application should be a strip structure with a certain toughness. For example, the first support member 200 can be a strip structure made of stainless steel material. The distal end of the first support member 200 can be connected and fixed to the distal end of the snake bone 100 by welding. After the snake bone 100 bends to the second side, the highly tough first support member 200 can adapt to the bending deformation of the snake bone 100 to prevent the first support member 200 from breaking during the bending process of the snake bone 100.

[0024] Based on the above technical scheme, when the insertion part of the embodiment of the present application is used in a specific application, based on the limiting effect of the first support member 200 on the bending of the serpentine bone 100 toward the first side, even if the serpentine bone 100 is subjected to a certain abutting force on the dorsal side of its bending direction, any part of the serpentine bone 100 can be prevented from bending and collapsing toward the first side. In other words, the first support member 200 can shape the serpentine bone 100 in the bent state and have a certain structural strength, and can ensure the certainty of the bending posture of the serpentine bone 100. The stability of the bending posture of the serpentine bone 100 can be beneficial for the operator to perform stable surgical operations. For example, when performing tracheal intubation, the operator can use the insertion part of the embodiment of the present application instead of the mandrel to lift the epiglottis cartilage and expose the glottis, thereby solving the problem of poor operating convenience in the related art of inserting the mandrel first and then inserting the endoscope, thereby improving the convenience and stability of the surgical operation.

[0025] In the embodiment of the present application, the first support member 200 can be a strip-shaped spring piece made of metal material, and a plurality of first card grooves 210 are arranged on the first support member 200. The plurality of first card grooves 210 are distributed along the axial direction of the first support member 200, that is, along the axial direction of the snake bone 100. A first card strip 110 which is radially recessed inward is arranged on the side wall of the snake bone 100. Specifically, when forming the first clamping strip 110, a circumferentially extending incision can be firstly opened on the side wall of the snake bone 100, and then the side wall portion of the snake bone 100 distributed on the proximal side of the incision is punched to form the first clamping strip 110. In this way, along the extension direction of the snake bone 100 from its proximal end to its distal end, an inwardly inclined guide surface is formed on the inner side of the first clamping strip 110. When the snake bone 100 bends to the second side, the guide surface can allow the part of the first support member 200 that is bent with the movement to slide toward the distal end relative to the snake bone 100. If the snake bone 100 has a tendency to bend to the first side, the first clamping groove 200 on the first support member 200 is 10 will be stuck at the end of the first clamping strip 110 and play a role of stopping and limiting the first supporting member 200, thereby limiting the first supporting member 200 from bending toward the first side, and further limiting the snake bone 100 from bending toward the first side. In other words, the first clamping strip 110 and the first clamping groove 210 are arranged so that the snake bone 100 and the first supporting member 200 form a matching structure similar to a ratchet mechanism, which only allows the snake bone 100 to bend toward the second side. The limiting matching relationship between the first clamping strip 110 and the first clamping groove 210 can ensure that the snake bone 100 maintains a relatively certain bending posture after bending toward the second side, thereby preventing the snake bone 100 from being subjected to force on its back side and collapsing.

[0026] In the embodiment of the present application, the operator can release the restrictive effect of the first support member 200 on the snake bone 100 by unlocking, so that the snake bone 100 can be bent toward the second side or the first side. In an optional embodiment of the present application, an operation window that radially penetrates the side wall of the snake bone 100 can be provided on the side wall of the snake bone 100, and the operation window can be provided adjacent to the first clamping strip 110. When performing a specific unlocking operation, the operator can press the portion of the first support member 200 adjacent to the first clamping strip 110 through the operation window, so that the first support member 200 at the portion adjacent to the first clamping strip 110 undergoes obvious radial inward deformation, thereby disengaging the first clamping strip 110 from the first clamping groove 210, thereby releasing the restrictive effect of the first support member 200 on the bending of the snake bone 100 toward the first side.

[0027] During the research process, the inventors found that although pressing the first support member 200 through the operating window can release the restricting effect of the first support member 200 on the bending of the snake bone 100 toward the first side, the operator's pressing operation can only be performed outside the body. Due to the limitations of the unlocking environment, there are inconveniences in the specific operation.

[0028] Based on this situation, in some embodiments of the present application, the insertion part may also include an unlocking component 300, which is connected to the first support member 200. The unlocking component 300 is used to release the restriction of the first support member 200 on the snake bone 100. The operator can achieve the convenience of unlocking operation by operating the unlocking component 300.

[0029] Specifically, see Figure 3 , Figure 4 , Figure 5 and Figure 6 In an embodiment of the present application, the unlocking component 300 may include a traction member 310. Exemplarily, the traction member 310 may be a traction rope or a traction wire. The traction member 310 includes a traction section 311 and an unlocking section 312 that are connected to each other, wherein the unlocking section 312 is located in the snake bone 100, and the unlocking section 312 is located radially outside the first support member 200. The unlocking section 312 is arranged adjacent to the first clamping strip 110, and the traction section 311 extends toward the proximal end of the endoscope. Exemplarily, the traction section 311 can extend toward the proximal end of the endoscope to the operating handle. The operator can pull the traction section 311 to drive the unlocking section 312 to shrink and deform in the radial direction. During the contraction of the unlocking section 312, the unlocking section 312 contacts the first support member 200 and pulls the portion of the first support member 200 adjacent to the first clamping strip 110 radially inward, thereby disengaging the first clamping strip 110 from the first clamping slot 210, thereby releasing the limiting effect of the first support member 200 on the bending of the snake bone 100 toward the first side. Compared with the method of unlocking by pressing the first support member 200 through the operating window outside the body, unlocking the first support member 200 is achieved by pulling the traction member 310. Regardless of whether the insertion part is inside the body or outside the body, the operator can easily achieve it by controlling the operating handle, which is more suitable for the complex use environment of the endoscope and more practical.

[0030] In some embodiments of this application, see Figure 4 , Figure 5 and Figure 6The insertion portion of the embodiment of the present application may further include a second support member 400, which is located on the second side of the snake bone 100, and the second support member 400 is configured to allow the snake bone 100 to bend toward the first side and restrict the snake bone 100 from bending toward the second side. Specifically, the second support member 400 is a strip-shaped structure identical to the first support member 200, and a second slot 410 is provided on the second support member 400 along its axial direction, and a second clip 120 which is radially recessed inward is provided on the side wall of the snake bone 100, and the second clip 120 can be processed and formed in the same manner as the first clip 110, and the second clip 120 can be arranged opposite to the first clip 110, and when the snake bone 100 bends toward the first side, the second support member 400 slides with the second clip 120, and when the snake bone 100 has a tendency to bend toward the second side, the second slot 410 on the second support member 400 will be stuck at the end of the second clip 120 and play a role of stopping and limiting, thereby limiting the second support member 400 from bending toward the second side, and further limiting the snake bone 100 from bending toward the second side.

[0031] In the embodiment of the present application, the unlocking assembly 300 is also connected to the second support member 400. The unlocking assembly 300 can not only release the limiting effect of the first support member 200 on the bending of the snake bone 100 to the first side, but also release the limiting effect of the second support member 400 on the bending of the snake bone 100 to the second side. Specifically, the unlocking section 312 can extend along the circumference of the snake bone 100 and simultaneously penetrate the radial outer sides of the first support member 200 and the second support member 400. When the operator pulls the traction section 311, the first support member 200 and the second support member 400 can be deformed and unlocked. At this time, the snake bone 100 can be bent to the first side or the second side.

[0032] Based on the above technical solution, a first support member 200 and a second support member 400 are arranged in a radially opposite relationship in the snake bone 100. The operator can control the matching relationship between the first support member 200 and / or the second support member 400 and the snake bone 100, that is, limit locking or releasing the limit locking, so that the snake bone 100 can be bent to the first side or the second side, and the bending posture of the snake bone 100 can be ensured after bending, so that the distal end of the insertion part has a certain structural strength, and even if the snake bone 100 is subjected to a certain abutment force on the back side of its bending direction, it will not collapse to form an uncontrollable S-shaped posture, that is, it eliminates the influence of the human body cavity on the bending posture of the snake bone 100 due to excessive narrowness, and facilitates the operator to perform stable surgical operations. Compared with the method of setting the first support member 200 on one side, the method of setting the first support member 200 and the second support member 400 on both sides can make the insertion part of the endoscope more flexible to adapt to the complex environment in the cavity.

[0033] In a further technical solution, the inner side of the side wall of the snake bone 100 is further provided with a guide groove 130 distributed along the circumference of the snake bone 100. For example, the guide groove 130 can be formed by radially punching the side wall of the snake bone 100 inward, and the aforementioned unlocking section 312 can be inserted into the guide groove 130. Based on the distribution of multiple guide grooves 130 in the circumferential direction of the snake bone 100, the unlocking section 312 is extended roughly along the circumferential direction of the snake bone 100. The operator can achieve simultaneous unlocking of the first support member 200 and the second support member 400 by pulling the traction section 311.

[0034] It can be understood that when the aforementioned guide groove 130 is formed by stamping, the multiple guide grooves 130 should be distributed on the same side of the first radial direction, which is the distribution direction of the first support member 200 and the second support member 400. The connection part between the traction segment 311 and the unlocking segment 312 should also be distributed on the same side as the guide groove 130. In this way, when the traction segment 311 is pulled, the part of the unlocking segment 312 distributed on the other side of the first radial direction will undergo radial contraction, and then drive the first support member 200 and the second support member 400 to undergo radial deformation.

[0035] In a further technical solution, the unlocking component 300 may also include a sleeve 320, which is fixedly connected to the snake bone 100, and the traction section 311 is inserted into the sleeve 320. The sleeve 320 can play a certain restraining role on the traction section 311 to prevent the traction section 311 from jumping around in the snake bone 100.

[0036] The embodiment of the present application further discloses an endoscope, which includes an operating handle and the aforementioned insertion portion, wherein the proximal end of the insertion portion is connected to the operating handle.

[0037] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0038] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An insertion portion, applied to an endoscope, characterized in that: It comprises a snake bone (100) and a first support member (200); wherein: The first support member (200) is inserted into the snake bone (100), and the distal end of the first support member (200) is connected and fixed to the distal end of the snake bone (100). The first support member (200) is located on a first side of the snake bone (100). The first support member (200) is configured to allow the snake bone (100) to bend toward a second side, while limiting the snake bone (100) from bending toward the first side. The first side and the second side are two radially opposite sides of the snake bone (100).

2. The insertion portion according to claim 1, characterized in that: The first support member (200) is a strip-shaped member, each of the first support members (200) is provided with a first clamping groove (210) distributed along its axial direction, and a first clamping strip (110) recessed radially inward is provided on the side wall of the snake bone (100), and the first clamping groove (210) and the first clamping strip (110) are limitedly matched to limit the bending of the snake bone (100) toward the first side.

3. The insertion portion according to claim 2, characterized in that: It also comprises an unlocking component (300), the unlocking component (300) being connected to the first supporting member (200), and the unlocking component (300) being configured to release the restrictive effect of the first supporting member (200) on the snake bone (100).

4. The insertion portion according to claim 3, characterized in that: The unlocking assembly (300) comprises a traction member (310), the traction member (310) comprising a traction section (311) and an unlocking section (312), wherein the unlocking section (312) is located inside the snake bone (100), and the unlocking section (312) is located radially outside the first support member (200), the traction section (311) is connected to the unlocking section (312), and the traction section (311) is configured to pull the unlocking section (312) to cause radial deformation, so that the first clamping strip (110) and the first clamping slot (210) are separated.

5. The insertion portion according to claim 4, characterized in that: It also includes a second support member (400), which is located on the second side of the snake bone (100), and the second support member (400) is configured to allow the snake bone (100) to bend toward the first side, while limiting the snake bone (100) from bending toward the second side.

6. The insertion portion according to claim 5, characterized in that The second support member (400) is a strip-shaped component, and the second support member (400) is provided with a second clamping groove (410) distributed along its axial direction. The side wall of the snake bone (100) is provided with a second clamping strip (120) recessed radially inward, and the second clamping groove (410) and the second clamping strip (120) are limitedly matched to limit the bending of the snake bone (100) toward the second side. The unlocking component (300) is also connected to the second support member (400), and the unlocking component (300) is also configured to release the limiting effect of the second support member (400) on the snake bone (100).

7. The insertion portion according to claim 6, characterized in that: The first clamping strip (110) and the second clamping strip (120) are formed by radially inwardly punching the side wall of the snake bone (100).

8. The insertion portion according to claim 6, characterized in that: A guide groove (130) distributed along the circumference of the side wall of the snake bone (100) is also provided in the side wall thereof, the guide groove (130) being formed by radially inwardly punching the side wall of the snake bone (100), and the unlocking section (312) is inserted into the guide groove (130), so that the unlocking section (312) is arranged to extend in a ring shape.

9. The insertion portion according to claim 8, characterized in that: The unlocking component (300) further comprises a sleeve (320), wherein the sleeve (320) is fixedly connected inside the snake bone (100), and the traction section (311) is inserted into the sleeve (320).

10. An endoscope, characterized in that: It comprises an operating handle and an insertion portion as described in any one of claims 1 to 9.

Images