Disclosure of Invention
In view of the above-mentioned drawbacks of the related art, the present application provides an insertion portion and an endoscope to solve the above-mentioned technical problems.
The application provides an insertion part of an endoscope, which comprises an insertion main body, a first supporting part and a second supporting part, wherein a front end assembly is arranged at the far end of the insertion main body, a first channel is arranged in the insertion main body, the first supporting part is arranged on the side surface of the insertion main body, the second supporting part is arranged at intervals with the first supporting part, and a second channel is formed between the first supporting part and the second supporting part.
In an embodiment of the application, at least one of the first support portion and the second support portion is deformable relative to the insertion body.
In an embodiment of the application, the insertion portion includes a connection portion, the connection portion is connected between the first support portion and the second support portion, and the connection portion is located at a side of the insertion body away from the second channel.
In an embodiment of the application, a surface of the connecting portion remote from the insertion body is configured as a cambered surface.
In one embodiment of the present application, the surface of the insertion body forming the second passage is recessed.
In an embodiment of the application, the first supporting portion and/or the second supporting portion extends along an extending direction of the insertion body.
In an embodiment of the application, the first supporting portion and/or the second supporting portion has a plurality of sub-supporting portions, and the plurality of sub-supporting portions are disposed at intervals along the extending direction of the insertion body.
In an embodiment of the application, the insertion body includes a first section and a second section, the second section is connected to the proximal end of the first section, the first section has a larger cross-sectional area than the second section, the insertion body has a first side and a second side that are distant from each other, the axis of the second section is located on the first side of the axis of the first section, and the first support portion and the second support portion are connected to the second side of the second section.
In an embodiment of the present application, the front end component is located at a side of the distal end of the first channel, and the second channel and the front end component are sequentially arranged along the axis of the insertion portion.
In an embodiment of the application, along an axial direction of the insertion portion, distal end surfaces of the first support portion and the second support portion are located within a projection of the first section.
In one embodiment of the application, the first section is configured as a curved section.
In an embodiment of the application, at least one bending direction of the first section intersects an arrangement direction between the first channel and the second channel.
To achieve the above and other related objects, the present application provides an endoscope including the aforementioned insertion portion.
The technical scheme adopted by the invention has the beneficial effects that the insertion main body can be inserted into the sheath tube. The first support portion and the second support portion can abut against the sheath so that the insertion body can be constrained to one side of the sheath, determine the relative position between the insertion portion and the sheath, and form a larger second channel. A second channel is formed between the first support portion and the second support portion. For example, in a stone operation, a first channel is used to extend into a treatment instrument and to inject a medium such as physiological saline, and a second channel is used to create a negative pressure environment to aspirate stones out of the body through a sheath and an insertion portion to complete the stone operation. The first supporting part and the second supporting part can form a second channel which is more independent, and the trafficability of the second channel is improved, so that richer functions and actions are realized. And moreover, the second channel formed between the first supporting part and the second supporting part can be kept through the first supporting part and the second supporting part, so that the cross section of the second channel is less influenced by bending of the endoscope and position change of the endoscope relative to the sheath, and a stable second channel extending along insertion is easier to form, thereby being beneficial to calculus removal.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
In various embodiments of the present application, "proximal" and "distal" refer to the location of the components relative to the user's far and near position in the environment of use, wherein the end closer to the user is designated as "proximal" and the end farther from the user is designated as "distal".
Guide sheaths and endoscopes are highly precise medical devices that are specifically designed and widely used in the field of urinary system examination and therapy. An introducer sheath, an auxiliary tool, is commonly used to guide an endoscope or other medical instrument into the urinary system, ensuring accuracy and safety of the procedure. The design fully considers the physiological structure of the urinary system of the human body, can effectively reduce the trauma and complications in the operation process, and improves the success rate of the operation and the recovery speed of patients.
When the guiding sheath and the endoscope are used for taking kidney stones, the sheath tube of the guiding sheath can be placed into the kidney by using the guiding wire, then the insertion part of the endoscope is inserted into the sheath tube, so that the stones are observed and crushed, and after the stones are crushed, the sheath tube can be used for providing a negative pressure environment so as to suck the stones into a gap between the sheath tube and the insertion part, so that the stones are discharged. However, the position of the insertion portion in the sheath is not determined, and the shape and the extending direction of the gap between the insertion portion and the sheath are not determined, so that stones may be blocked, and the insertion portion cannot be taken out of the sheath.
The present application provides an insertion portion 100 of an endoscope 1, hereinafter referred to as an insertion portion 100. Referring to fig. 1, the insertion portion 100 may include an insertion body 110, a first support portion 120, and a second support portion 130, wherein the first support portion 120 and the second support portion 130 are disposed on the insertion body 110.
With continued reference to fig. 1, the distal end of insertion body 110 is configured with a front end component 116. The front end assembly 116 of the insertion body 110 may include a camera module, an illumination module, and the like. Under medical staff's control, insert main part 110 can rotate to appointed orientation, and then the image signal of appointed position can be obtained to the camera module to medical staff observes and controls the apparatus and carries out the treatment operation.
Referring to fig. 2, the insertion body 110 has a first passage 111 therein. The first channel 111 is inserted through opposite ends of the body 110, and the first channel 111 may be used for insertion of a treatment instrument, such as a biopsy forceps, a laser, etc., and/or the first channel 111 may be used for injection of a medium, such as saline, distilled water, etc. Illustratively, during a stone operation, the first channel 111 may guide the laser into the body while the first channel 111 may simultaneously inject saline into the body. In the present embodiment, the shape and use of the first passage 111 are not limited.
Referring to fig. 3, the first support portion 120 and the second support portion 130 are disposed at a side surface of the insertion body 110. Wherein the first support part 120 and the second support part 130 may be configured in the same structure, and the first support part 120 and the second support part 130 may be integrally formed with the insertion body 110. The first supporting portion 120 and the second supporting portion 130 are arranged at intervals, the first supporting portion 120 and the second supporting portion 130 which are arranged at intervals can be arranged at two opposite ends of the insertion body 110, and the first supporting portion 120 and the second supporting portion 130 can be abutted against different positions of the inner wall of the sheath tube 2, so that a better supporting effect is achieved. Compared with the single-point limiting, the insertion body 110 can be limited to one side of the sheath tube 2 by the two supporting parts, so that the gap between the other side of the insertion body 110 and the sheath tube 2 is larger for discharging the substances to be discharged, such as stone particles broken by laser.
It will be appreciated that the insertion body 110 is further provided with one or more traction channels 160, and that the traction channels 160 are used to pass through the traction ropes to control the rotation of the insertion portion 100, so that the distal end of the insertion body 110 can be rotated to a designated orientation.
With continued reference to fig. 3, the second supporting portion 130 is spaced from the first supporting portion 120, and the distance between the first supporting portion 120 and the second supporting portion 130 may be selected and designed according to the specific implementation scenario and mode, which is not limited in this embodiment. The second channel 140 is formed between the first support 120 and the second support 130, and the second channel 140 and the first channel 111 are independent from each other, and the functions of the two channels may be configured to be the same or different, so that the medical staff can operate the insertion part 100 more flexibly. Illustratively, in a stone operation, the insertion part 100 is inserted into a lumen of a human body, a medical staff can insert a treatment instrument such as a laser through the first channel 111 to break up stones, and a medium such as physiological saline is injected into the human body using the first channel 111 to promote stone discharge and prevent infection. The medical staff can synchronously control the second channel 140 to generate negative pressure, and the second channel 140 can suck the broken stone particles and the medium out of the body.
Referring to fig. 3 and 4 together, fig. 3 shows the state of the first support portion 120 and the second support portion 130 when they are inserted into the sheath 2, and fig. 4 shows the initial state of the first support portion 120 and the second support portion 130. At least one of the first support 120 and the second support 130 is deformable with respect to the insertion body 110. The first support portion 120 and the second support portion 130 may be made of silica gel or polyurethane, and the material of the first support portion 120 and the second support portion 130 is not limited in this embodiment. The first support portion 120 and the second support portion 130 have sufficient elasticity, the first support portion 120 and the second support portion 130 do not hinder the insertion of the insertion portion 100 into the sheath 2, and can also function as a stopper so that the gap between the other side of the insertion body 110 and the sheath 2 is larger.
At the same time, the first support 120 and the second support 130 are used to elastically abut against the inner wall of the sheath 2 so as to bias the insertion body 110 against the sheath 2. The offset arrangement may provide clearance between the insertion body 110 and the inner wall of the sheath 2, which provides more room for stones to wait for the removal of the medium. And, the first support part 120 and the second support part 130 which are elastically provided can be adapted to the size of the sheath tube 2, when a certain gap is formed between the insertion body 110 and the inner wall of the sheath tube 2, the first support part 120 and the second support part 130 can be moved back to each other, so that the ends of the first support part 120 and the second support part 130 extend to a position farther from the insertion body 110 and simultaneously push the insertion body 110, and further the size of the second channel 140 can be configured to be larger. The second channel 140 has better passability, solving the problem of uneven stone removal occurring when the insertion portion 100 is inside the sheath 2.
It is understood that, as shown in fig. 4, the ends of the first and second support parts 120 and 130 extend in a direction away from the insertion body 110. When the insertion portion 100 is required to be inserted into the sheath 2, the medical staff can bend the first support portion 120 and the second support portion 130, and the first support portion 120 and the second support portion 130 are elastically deformed, so that the volume of the insertion portion 100 is reduced, and the insertion portion 100 is conveniently inserted into the sheath 2. After the insertion portion 100 is inserted into the sheath 2, the first support portion 120 and the second support portion 130 are restored to their original shapes and abut against the inner wall of the sheath 2, so that the insertion body 110 is biased with respect to the sheath 2.
In this embodiment, referring to fig. 5, the insertion portion 100 may include a connection portion 150, the connection portion 150 is connected between the first support portion 120 and the second support portion 130, and the connection portion 150 is located at a side of the insertion body 110 away from the second channel 140. The connection portion 150 can effectively connect the first support portion 120 and the second support portion 130 together, so as to avoid the occurrence of offset between the first support portion 120 and the second support portion 130 and the insertion body 110, and further reduce the shape change of the second channel 140.
In addition, the connection part 150 may provide necessary support and stability when the insertion body 110 interacts with the sheath 2, avoiding the influence of external compression on the primary channel 111. More specifically, the elastic first and second support parts 120 and 130 or the human body cavity may unnecessarily press the insertion body 110, and the first channel 111 inside the insertion body 110 may be pressed, thereby affecting the smooth progress of the operation. In this embodiment, the connection portion 150 may form a stable supporting structure, so that the first supporting portion 120 and the second supporting portion 130 are prevented from extruding the insertion body 110, the connection portion 150 can play a role in protection, and the first channel 111 of the insertion body 110 can be ensured to circulate normally.
Preferably, with continued reference to fig. 5, a surface of the connection portion 150 remote from the insertion body 110 is configured as an arc surface 151. The size of the cambered surface 151 corresponds to that of the sheath tube 2, and the cambered surface 151 can be closely attached to the inner wall of the sheath tube 2, so that the contact area between the insertion main body 110 and the sheath tube 2 is enhanced, and the pressure can be uniformly distributed when the connecting part 150 is stressed, thereby avoiding structural damage or functional failure caused by overlarge local pressure of the insertion main body 110.
In this embodiment, referring back to fig. 2, the insertion body 110, the first supporting portion 120 and the second supporting portion 130 enclose the second channel 140, and the surface of the insertion body 110 forming the second channel 140 is concavely disposed. The concave insertion body 110 can be positioned in the second channel 140, so that the cross section of the second channel 140 is approximately circular, and the circular second channel 140 has no dead angle, so that the substances to be discharged are prevented from being accumulated or blocked in the second channel 140. In contrast, other shapes (e.g., rectangular) of channels may have four angles of smaller size, where the material to be expelled may clog, thereby affecting the effectiveness of the second channel 140.
Wherein the wall of the concavely arranged insertion body 110 may have redundant portions of the wall to accommodate different sizes of sheath 2. And when the insertion body 110 is inserted into the sheath 2 of a larger size, the concavely provided insertion body 110 is restored, for example, the insertion body 110 is restored from an elliptical structure to a circular structure, so that the insertion body 110 can have the first channel 111 of a larger size.
It can be understood that the first supporting portion 120 and the second supporting portion 130 are both configured as arc structures, and thus, the surfaces of the first supporting portion 120 and the second supporting portion 130 are both arc surfaces. In addition, the surface of the insert body 110 forming the second channel 140 is concavely arranged, so that the second channel 140 can more approximate to a circular structure, and the passing effect of the second channel 140 is further improved.
In one embodiment, the first support 120 and/or the second support 130 extend along the extension direction of the insertion body 110. The first support 120 and/or the second support 130 can extend to opposite ends of the insertion body 110, which can enable each position of the insertion body 110 to be restrained, and form the second channel 140, improving the use effect of the insertion body 110.
In another embodiment, the first support 120 and/or the second support 130 has a plurality of sub-supports spaced apart along the extension direction of the insertion body 110. The plurality of sub-supporting parts disposed at intervals can reduce the contact area between the first supporting part 120 and/or the second supporting part 130 and the inner wall of the sheath tube 2, and reduce friction, so that the insertion body 110 can be smoothly inserted. Meanwhile, the plurality of sub-supporting portions may be sequentially distributed between opposite ends of the insertion body 110, so that each position of the insertion body 110 may be constrained, and the second channel 140 may be formed, thereby improving the use effect of the insertion body 110.
In this embodiment, referring to fig. 6, the insertion body 110 may include a first section 112 and a second section 113, the second section 113 being connected to a proximal end of the first section 112. The first section 112 has a larger cross-sectional area than the second section 113, in other words, the first section 112 has a larger space to accommodate the front end assembly 116 than the second section 113. The insertion body 110 has a first side 114 and a second side 115 remote from each other, the axis of the second section 113 (shown as L2 in fig. 6) being located on the first side 114 of the axis of the first section 112 (shown as L1 in fig. 6), the second section 113 being still able to be off-axis with respect to the first section 112. When the first segment 112 is inserted into the sheath 2, the first segment 112 is substantially coaxial with the sheath 2, and the second segment 113 is further offset with respect to the sheath 2, ensuring that a larger space is formed between the second segment 113 and the sheath 2 for more convenient passage of the substance to be expelled.
The first support 120 and the second support 130 are connected to the second side 115 of the second section 113. Illustratively, the first support 120 and the second support 130 can abut against the inner wall of the sheath 2, the first support 120 and the second support 130 act in a direction in which the second side 115 faces the first side 114, and the first support 120 and the second support 130 drive the insertion body 110 to deflect towards the first side 114, so that the insertion body 110 can be biased relative to the sheath 2, thereby improving the assurance that a larger space can be formed between the first segment 112 and the second segment 113 and the sheath 2 for more convenient passage of the substance to be discharged.
When the second channel 140 is disposed on the opposite side of the front end assembly 116, the volume of the insert 100 increases. In this embodiment, as shown in fig. 6, the front end assembly 116 is located on the distal side of the first channel 111, the second channel 140 is located on the side of the first channel 111, and the second channel 140 and the front end assembly 116 are sequentially arranged along the axis of the insertion portion 100. For example, the second channels 140 and the front end assembly 116 are arranged in sequence along the axis of the insertion portion 100. The arrangement can enable the second channel 140 and the front end component 116 to be positioned on the same side of the insertion part 100, so that the volume of the insertion part 100 can be reduced, the first channel 111 can be ensured to be straightly distributed, and the situation that the first channel 111 bends to influence the medium discharging efficiency and prevent medical instruments from entering the first channel 111 is avoided.
In the present embodiment, the first section 112 is configured as a curved section. Further, the first segment 112 may be an active bending segment or a passive bending segment. Illustratively, when the first section 112 is an actively curved section, the medical practitioner can manipulate the operative end of the endoscope 1 to control the first section 112 to curve in a prescribed direction around. Or the first segment 112 may be a passive bending segment, with the first segment 112 being driven to bend to fit within the curved lumen. At least part of the first channel 111 and the camera module of the front end assembly 116 are disposed in the first section 112, and the first section 112 can drive the camera module and the first channel 111 to bend, so that a medical staff can observe more images, and operate the insertion portion 100 to enter more places for treatment.
When the insertion portion 100 is bent, the bent first section 112 may block the second channel 140 or damage the structures of the first support portion 120 and the second support portion 130, thereby causing an inferior pumping effect of the second channel 140. In the present embodiment, at least one bending direction of the first section 112 intersects with the arrangement direction between the first passage 111 and the second passage 140. Illustratively, the first section 112 is at least bendable in a first direction (shown as L3 in fig. 7), i.e., the first section 112 is bendable to the left and right, the direction of arrangement between the first channel 111 and the second channel 140 is a second direction (shown as L4 in fig. 7), i.e., the direction of arrangement between the second channel 140 and the first channel 111 is vertically downward, and the first direction and the second direction intersect. The first section 112 is curved in the first direction and does not completely pinch or block the second channel 140, ensuring that the curved insert 100 is still able to draw the substance to be expelled, improving the use of the insert 100.
In this embodiment, referring to fig. 8, along the axial direction of the insertion portion 100, distal end surfaces of the first support portion 120 and the second support portion 130 are located within the projection of the first section 112. This arrangement can avoid the ends of the first support portion 120 and the second support portion 130 from abutting the sheath 2 or the human body lumen, so that the first support portion 120 and the second support portion 130 can be smoothly inserted into the sheath 2 or the human body lumen. And, as shown in fig. 8, the distance between the first support part 120 and the second support part 130 gradually increases along the direction from the distal end to the proximal end of the insertion part 100 (as shown by L5 in fig. 8), which can ensure that the end surfaces of the first support part 120 and the second support part 130 can be smoothly inserted into the sheath 2 or the human body lumen, and also ensure that the size of the rear section of the second channel 140 is sufficiently large to improve the trafficability of the second channel 140.
To achieve the above and other related objects, the present application provides an endoscope 1, referring to fig. 9, the endoscope 1 may include the insertion portion 100 described above. Thus, the endoscope 1 has the beneficial effects of any of the above-described embodiments, and will not be described in detail herein. The endoscope 1 may be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, an enteroscope, an otoscope, a nasoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc., and the type of the endoscope 1 is not particularly limited in the embodiment of the present application.
The technical scheme adopted by the invention can achieve the following beneficial effects that the insertion main body 110 can be inserted into the sheath tube 2. The first support 120 and the second support 130 can abut against the sheath 2 so that the insertion body 110 can be constrained to one side of the sheath 2, determine the relative position between the insertion 100 and the sheath 2, and form a larger second channel 140. A second channel 140 is formed between the first support 120 and the second support 130. For example, in a stone operation, the first channel 111 is used to extend into a treatment instrument and to inject a medium such as physiological saline, and the second channel 140 is used to generate a negative pressure environment to suck stones out of the body through the sheath 2 and the insertion portion 100, so as to complete the stone operation. The first supporting portion 120 and the second supporting portion 130 can form a second channel 140 which is independent, and the passing performance of the second channel 140 is improved, so that more abundant functions and roles are realized. In addition, the second channel 140 formed between the first support portion 120 and the second support portion 130 may be maintained by the first support portion 120 and the second support portion 130, so that the cross section of the second channel 140 is less affected by bending of the endoscope and the change of the position of the endoscope 1 relative to the sheath tube 2, and a stable second channel 140 extending along the insertion is easier to form, thereby facilitating stone removal.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention.