CN217066330U - Elastic tube, probe insertion structure and flexible probe - Google Patents
Elastic tube, probe insertion structure and flexible probe Download PDFInfo
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- CN217066330U CN217066330U CN202123457101.6U CN202123457101U CN217066330U CN 217066330 U CN217066330 U CN 217066330U CN 202123457101 U CN202123457101 U CN 202123457101U CN 217066330 U CN217066330 U CN 217066330U
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- 238000003780 insertion Methods 0.000 title claims abstract description 15
- 230000037431 insertion Effects 0.000 title claims abstract description 15
- 239000000523 sample Substances 0.000 title claims description 12
- 238000005452 bending Methods 0.000 claims abstract description 85
- 230000000670 limiting effect Effects 0.000 claims abstract description 49
- 230000002829 reductive effect Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 12
- 210000002421 cell wall Anatomy 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 239000011295 pitch Substances 0.000 description 6
- 230000002441 reversible effect Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000000994 depressogenic effect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/008—Articulations
Abstract
The utility model provides an elastic tube, a detector insertion structure and a flexible detector, the flexible detector comprises a handle, a detector insertion structure and a camera module which are connected in sequence, the detector insertion structure comprises an elastic tube, the elastic tube is provided with a spiral cutting groove which winds the circumference of the elastic tube and extends along the axis direction of the elastic tube, the spiral cutting groove comprises a first groove wall and a second groove wall which are arranged oppositely, and at least one bending limit structure is formed on the two groove walls; the bending limiting structure comprises a first protruding part and a second protruding part, when the elastic tube is axially bent to the maximum angle, the first protruding part and the second protruding part in at least one bending limiting structure are mutually locked, so that the bending angle of the elastic tube can be limited, the problem that the elastic tube is not limited in bending is solved, the risks of deformation and breakage of the elastic tube are reduced, and the service life of the elastic tube is prolonged.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to elastic tube, detector insertion structure and flexible detector.
Background
At present, in the field of endoscopes, a plastic pipe or a metal pipe is mostly adopted for an endoscope main pipe body, wherein the plastic pipe is mainly produced by adopting a plastic extrusion process, the performances of different positions of the plastic pipe produced by the process are relatively consistent, and the plastic pipe cannot be adapted to use occasions requiring different performances at each position. In addition, the production process of the plastic pipe is complex, the processing period is long, and the production efficiency is low. The metal pipe is mainly obtained by cutting lines on the pipe, the metal pipe can be cut into different lines at different positions on the pipe, so that different positions of the metal pipe have different performances, the lines on the metal pipe are complex, the production period is long, the metal pipe is not limited when being bent, the metal pipe is easy to break and deform, the service life of the metal pipe is shortened, and the use cost of a main pipe body in the endoscope is increased.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem that exists among the prior art, the utility model aims to provide an elasticity pipe, detector insertion structure and flexible detector have overcome current detector and have been responsible for the crooked no spacing problem of body.
In order to achieve the above object, the present invention provides an elastic tube, which has a spiral cutting groove extending around the circumference of the elastic tube and along the axis direction of the elastic tube, wherein the spiral cutting groove comprises a first groove wall and a second groove wall which are oppositely arranged, and at least one bending limit structure is formed on the first groove wall and the second groove wall;
the flexion limiting structure comprises a first protrusion and a second protrusion, the first protrusion extending from the first groove wall to the second groove wall side, the second protrusion extending from the second groove wall to the first groove wall side; the first and second projections of at least one bend limiting structure interlock with each other when the resilient tube is axially bent to a maximum angle.
Optionally, the first protrusion has a groove in which the second protrusion moves relative to the first protrusion.
Optionally, the first protrusion and the second protrusion are each independently L-shaped or T-shaped.
Optionally, the bend limiting structure comprises two of the first protrusions and one of the second protrusions, the second protrusion being disposed in the groove formed by the two first protrusions.
Optionally, the first protrusion has a first surface, the second protrusion has a second surface, the first surface and the second surface are oppositely arranged and have a gap reserved, and the first surface and the second surface abut to lock the first protrusion and the second protrusion with each other.
Optionally, the spiral cutting groove is provided with two circles of bending limit structures which are adjacent to each other along the axial direction of the elastic tube, and the two circles of bending limit structures are arranged in a staggered manner in the circumferential direction of the elastic tube.
Optionally, the first groove wall and the second groove wall are further formed with at least one torsion limiting structure, and the torsion limiting structure includes a recessed portion and a third protruding portion inserted into the recessed portion; the recess is formed by one of the first and second slot walls, the other of the first and second slot walls forming the third protrusion; the recess and the third protrusion remain relatively stationary in the circumferential direction when the elastic tube is twisted in the circumferential direction.
Optionally, the number of the torsion limiting structures and the number of the bending limiting structures are both multiple, all the torsion limiting structures are arranged at intervals in the extending direction of the spiral cutting groove, and one bending limiting structure is arranged between every two adjacent torsion limiting structures.
In order to achieve the above object, the present invention further provides a probe insertion structure, including any one of the elastic tubes.
In order to achieve the above object, the utility model also provides a flexible detector, including the handle that connects gradually detector insertion structure and the module of making a video recording.
The utility model provides an among elastic tube, detector insertion structure and the flexible detector, through be provided with at least one crooked limit structure on elastic tube, first protruding portion and second protruding portion among the at least one crooked limit structure can synchronous production relative movement when elastic tube axial bending. When the elastic pipe is axially bent to a certain angle, the first protruding part and the second protruding part can be mutually locked, so that the maximum bending angle of the elastic pipe is limited, the problem that the axial bending of the elastic pipe is not limited is solved, the deformation and fracture risks of the elastic pipe can be reduced, and the service life of the elastic pipe is prolonged. Meanwhile, the elastic tube simplifies the complexity of cutting lines in the metal elastic tube, and has lower processing cost, shorter production period and higher economic benefit. In addition, the elastic tube can also have good adaptability, can be conveniently applied to various products, and has more flexible application scenes.
The utility model provides an among elastic tube, detector insertion structure and the flexible detector, still twist reverse limit structure through at least one and ensure elastic tube smooth conduction torsional force in the axial to can solve the poor problem of elastic tube torsional property, produce deformation and damage when avoiding elastic tube to twist reverse, further prolong elastic tube's life.
Drawings
FIG. 1 is a front view of an elastic tube according to a preferred embodiment of the present invention, wherein W is the pitch of the elastic tube;
fig. 2 is a schematic view of the expanded structure of the spiral cutting groove in the preferred embodiment of the present invention.
In the figure: spirally cutting the groove 1; a bending limit structure 2; a first protruding portion 21; a first surface 211; a second protruding portion 22; a second surface 221; the gap 23; a third projection 31.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships of the illustrated figures, merely to facilitate description and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as either a fixed connection, a detachable connection, or an integral part; may be mechanically coupled, may be electrically coupled or may be in communication with each other; either directly or through an intermediary, may be internal to the two elements or may be in an interactive relationship with the two elements unless specifically limited otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The present invention will be described in detail with reference to the accompanying drawings and preferred embodiments. In the following embodiments, features of the embodiments can be supplemented with each other or combined with each other without conflict.
As shown in fig. 1 to 2, a preferred embodiment of the present invention provides an elastic tube which is cut from a metal tube and can be bent in an axial direction. In a preferred embodiment, the flexible tube is a main tube on a flexible probe (e.g., an endoscope). Of course, in other embodiments, the elastic tube may be used in other devices that require bending and twisting.
The elastic pipe is cut to form a spiral cutting groove 1, the spiral cutting groove 1 extends around the circumference of the elastic pipe and along the axis direction of the elastic pipe, the spiral cutting groove 1 comprises a first groove wall (not numbered) and a second groove wall (not numbered) which are oppositely arranged, and at least one bending limiting structure 2 is formed on the first groove wall and the second groove wall; the bending limiting structure 2 comprises a first protrusion 21 and a second protrusion 22, wherein the first protrusion 21 is formed by extending from a first groove wall to a second groove wall side, and the second protrusion 22 is formed by extending from the second groove wall to the first groove wall side; the first projection 21 and the second projection 22 of the at least one bend limiting structure can approach each other until they are locked to each other when the elastic tube is axially bent to a maximum angle.
In order to make the elastic tube have the axial bending limit ability, this application cuts in order to form spiral cut groove 1 on the elastic tube, and spiral cut groove 1 can form the many circles structure of spiral coiling on the circumference outer wall of elastic tube, and spiral cut groove 1 has first cell wall and the second cell wall because of cutting formation to first cell wall and second cell wall are formed with at least one bending limit structure 2. That is, the spiral cutting groove 1 can be regarded as a cutting path on the elastic tube, two sides of the cutting path are groove walls of the spiral cutting groove 1, and the cutting can obtain a groove wall with a specific shape, and the groove wall with the specific shape comprises at least one bending limit structure 2. Specifically, when the elastic tube is axially bent, the first groove wall and the second groove wall are axially stressed and deformed to be away from each other, and the first protruding portion 21 and the second protruding portion 22 can respectively move along with the first groove wall and the second groove wall to move relatively and can also be locked with each other when moving relatively to the limit position, so that the maximum bending angle of the elastic tube is limited. So set up, not only solved the elasticity pipe axial bending and do not have spacing problem, can also be with the bending angle restriction of elasticity pipe in certain scope, reduced the deformation and the cracked risk of elasticity pipe to the life of extension elasticity pipe. Meanwhile, the complexity of cutting lines in the metal elastic pipe is simplified, the processing cost is low, the production period is short, and the economic benefit is high. In addition, the elastic tube also has good adaptability, can be conveniently applied to various products, and has more flexible application scenes.
It will be appreciated that when the bending force to which the elastic tube is subjected (i.e. the force by which the elastic tube is axially bent) is small, the first protruding portion 21 and the second protruding portion 22 in each bending limiting structure 2 relatively move without actually contacting; however, when the bending force applied to the elastic tube is greater than the predetermined threshold, the first protruding portion 21 and the second protruding portion 22 of each bending limiting structure 2 abut against each other on the side of the elastic tube that is stretched by the force to form a locked state to limit the movement of the elastic tube, so that the elastic tube cannot be bent any more, and at this time, the elastic tube obtains the maximum bending angle and can bear a certain bending force in the bending direction. Specifically, when the elastic tube is bent, one side of the elastic tube is stressed and stretched, so that the first protruding part 21 and the second protruding part 22 in at least one bending limit structure on the wall of the groove on the stretched side of the elastic tube approach each other until being locked with each other, so as to limit the bending direction when the elastic tube is bent to the maximum angle, and at the moment, the first protruding part 21 and the second protruding part 22 on the wall of the groove on the pressed side of the elastic tube keep the original positions unchanged due to no stretching force.
It should be understood that the present application does not limit the structure of the bending limiting structure 2, and the bending limiting structure 2 only needs to have the first protruding part 21 and the second protruding part 22 capable of limiting each other in the bending direction of the elastic tube. It is also understood that the present application does not limit the shape of the first protrusion 21 and the second protrusion 22, for example, the first protrusion 21 and the second protrusion 22 may be respectively and independently L-shaped or T-shaped, etc., and it is understood herein that the first protrusion 21 and the second protrusion 22 are both L-shaped or both T-shaped, or one of the protrusions is L-shaped and the other is T-shaped.
The present embodiment also provides a probe insertion structure (not shown) including the elastic tube. Further, the embodiment also provides a flexible detector (not shown in the figure), which comprises a handle, a detector insertion structure and a camera module, which are connected in sequence. In practical use, the elastic tube can be inserted into a human body and bent or twisted to detect or treat a disease. It should be understood that the flexible probe according to the embodiments of the present application includes, but is not limited to, an endoscope, which is used as an example to illustrate the structural features of the elastic tube, but those skilled in the art should understand that the elastic tube can also be applied to flexible probes in other medical and industrial fields.
In an embodiment, the first protrusion 21 has a groove (not numbered) in which the second protrusion 22 moves relative to the first protrusion 21. Preferably, the first protrusion 21 is disposed at least one side of the second protrusion 22 in a circumferential direction of the elastic tube. The second protrusion 22 moves in the groove when the elastic tube is bent; the second protruding part 22 of each bending limiting structure 2 and the first protruding part 21 disposed at least one side of the second protruding part 22 are locked and limited to each other when the elastic tube is bent to a maximum angle, to limit the bending angle of the elastic tube.
Referring to fig. 1, in the present embodiment, the bending limit structure includes two first protrusions 21 and one second protrusion 22, that is, the second protrusion 22 is provided with one first protrusion 21 on each of both sides of the circumference of the elastic tube, and the second protrusion 22 is provided in a groove formed by the two first protrusions 21. By the arrangement, on one hand, the second protruding part 22 and the first protruding parts 21 on two sides can be locked and limited, so that when the elastic tube reaches the maximum bending angle, the contact area between the first protruding part 21 and the second protruding part 22 is increased, and the bending force borne by the elastic tube in the bending direction is improved; on the other hand, even if the first protrusion 21 of one side of the second protrusion 22 is damaged, the first protrusion 21 of the other side can be locked with the second protrusion 22, thereby further securing the bending limit capability of the elastic tube.
Further, the first protruding portion 21 may be symmetrically or asymmetrically disposed at both sides of the second protruding portion 22 along the circumference of the elastic tube, and is preferably symmetrically disposed, so as to reduce the processing difficulty of the bending limiting structure 2 and improve the cutting efficiency of the elastic tube.
With continued reference to fig. 1 and 2, the first protrusion 21 has a first surface 211, the second protrusion 22 has a second surface 221, the first surface 211 and the second surface 221 are oppositely disposed and are provided with a gap 23, and the first surface 211 and the second surface 221 abut to lock the first protrusion 21 and the second protrusion 22 to each other. In the present embodiment, the first protrusion 21 has an L-shaped structure, the second protrusion 22 has a T-shaped structure, and the first surface 211 of the first protrusion 21 and the second surface 221 of the second protrusion 22 are disposed to face each other in the axial direction. When the elastic tube is bent, the first protrusion 21 and the second protrusion 22 move close to each other, i.e., the first surface 211 and the second surface 221 move close to each other; as the bending angle of the elastic tube increases, the first surface 211 is finally contacted and limited with the second surface 221, and at this time, the first protruding portion 21 and the second protruding portion 22 form surface contact therebetween, so that the bending force of the elastic tube in the bending direction can be further increased, and damage or abrasion due to a small contact area of the first protruding portion 21 or the second protruding portion 22 can be avoided, thereby prolonging the service life of the elastic tube. In addition, the gap 23 can also enable the elastic tube to have certain displacement when being subjected to tensile force in the axial direction; and when the elastic tube is stretched to a certain distance, the first surface 211 and the second surface 221 can be abutted and limited, so that the elastic tube cannot be stretched continuously in the axial direction, and the stretching distance of the elastic tube in the axial direction is limited, so that the elastic tube can be used in occasions needing stretching.
Referring to fig. 1, the spiral cutting groove 1 is formed around the circumference of the elastic tube and forms a plurality of circles in the axial direction of the elastic tube, wherein the bending limit structures 2 in two adjacent circles are staggered in the circumference of the elastic tube. The term "staggered" means that the two adjacent turns of the bend limiting structures 2 do not completely coincide with each other in the same projection plane perpendicular to the axis of the elastic tube. Therefore, the elastic tube can be bent towards different directions to adapt to different bending requirements of the elastic tube.
Furthermore, the number of the bending limit structures 2 is usually multiple, and the bending limit structures are arranged at intervals in the spiral extending direction, and the projection of all the bending limit structures 2 on the axial end part of the elastic tube can surround the elastic tube for a circle, so that the elastic tube can be bent at any angle (namely, the elastic tube can be bent in the circumferential direction of 360 degrees), and when the elastic tube is used as a main tube body of an endoscope, the elastic tube arranged in this way can work more flexibly after the endoscope enters a human body. In addition, the elastic tube can be suitable for various devices needing bending, so that the use scene of the elastic tube is enlarged.
It will be appreciated that when the elastic tube is bent, the maximum bending angle at which the elastic tube is bent is different if the length of the gap 23 between the first surface 211 and the second surface 221 in the axial direction of the elastic tube is different. Specifically, when the elastic tube is bent, the first and second groove walls move relatively to each other, so that the first protruding portion 21 and the second protruding portion 22 move synchronously until they are locked with each other. When the gap 23 between the first surface 211 and the second surface 221 is large, the first protruding part 21 and the second protruding part 22 may have a large displacement amount before being locked with each other, and the angle at which the elastic tube can be bent is large, i.e., the maximum bending angle of the elastic tube when being bent is large. Similarly, when the gap 23 between the first surface 211 and the second surface 221 is small, the first protrusion 21 and the second protrusion 22 have a small displacement amount before being locked with each other, and the angle at which the elastic tube can be bent is small, i.e., the maximum bending angle of the elastic tube when being bent is small.
Therefore, when the bending limiting structure 2 on the elastic tube is arranged, the length of the gap 23 between the first surface 211 and the second surface 221 can be set according to the requirement of the bending angle of the elastic tube, so that the maximum bending angle of the elastic tube can meet different use requirements. In addition, for the elastic tube which needs different bending requirements at different positions, different gap 23 lengths can be arranged in different circles of the spiral cutting groove 1 of the elastic tube, and different circles of the spiral cutting groove 1 on the elastic tube can have different bending capabilities, so that different positions of the elastic tube in the axial direction have different bending angles, and the complex use requirements of the elastic tube are met.
Referring to fig. 1, in a front view of the elastic tube, a distance W between adjacent turns in a spiral cut groove 1 is a pitch of the elastic tube. When the thread pitch of the elastic tube is larger, the number of turns of the spiral cutting groove 1 in the elastic tube with the same length is relatively smaller, namely the number of the bending limiting structures 2 in the elastic tube is smaller, and when the bending angles of all the bending limiting structures 2 on the elastic tube are the same, the total bending angle of the elastic tube is smaller (namely the common bending angle of all the turns of the elastic tube), namely the elastic tube can be bent at a larger angle; similarly, when the pitch of elasticity pipe is less, the number of turns of spiral cutting groove 1 is more relatively in the elasticity pipe under the same length, and the angle that each crooked limit structure 2 can be crooked on the elasticity pipe is the same in the crooked limit structure 2 quantity this moment in the elasticity pipe, and the total angle that the elasticity pipe can be crooked is great (the common bend angle of all rings of elasticity pipe promptly), and the elasticity pipe this moment can carry out the bending of less angle promptly.
Therefore, when the elastic tube is designed, the total bending angle of the elastic tube can be adjusted by setting different screw pitches, so that the elastic tube can adapt to the bending requirements in different occasions. In addition, the elasticity pipe still can set up different screw pitches in different regions to make the elasticity pipe when crooked, different regions have different bending angle, thereby satisfy the crooked requirement in the different regions of elasticity pipe, realize the flexibility and the variety of elasticity pipe design, and make the elasticity pipe have good adaptability, and then can be convenient use in all kinds of products, make the range of application of elasticity pipe wider. It is to be understood that "region" herein refers to one section of the elastic tube and "different region" of the elastic tube refers to different sections located at different positions.
Preferably, the first and second groove walls are further formed with at least one torsion stopper including a recess (not numbered) and a third protruding part 31 inserted into the recess. When the elastic tube is twisted in the circumferential direction, the recess and the third protruding part 31 are kept relatively static in the circumferential direction to prevent the elastic tube from moving relatively in the circumferential direction, so that the elastic tube is twisted integrally after being subjected to torsion. In this embodiment, the recess is formed by a first groove wall and the third protruding portion 31 is formed by a second groove wall. In another embodiment, the third protrusion 31 may also be formed by a first groove wall and the recess by a second groove wall. So set up, can make the elasticity pipe can be through the interlock of depressed part and third protruding portion 31 when twisting to make the torsional force of elasticity pipe can be in the smooth conduction of axial, whole elasticity pipe can twist reverse together when taking place to twist promptly, and then can solve the poor problem of elasticity pipe torsional properties, produce deformation and damage when avoiding the elasticity pipe to twist, prolong the life of elasticity pipe.
Specifically, when one end of the elastic tube is twisted, the recessed portion or the third protruding portion 31 in the twisting limiting structure on one twisting side is twisted, and the third protruding portion 31 or the recessed portion in the twisting limiting structure engaged with the recessed portion and far away from one end of the elastic tube can be driven to be twisted therewith, at this time, the recessed portion or the third protruding portion 31 on the other side in the twisting limiting structure far away from one end of the elastic tube can be synchronously twisted, and the third protruding portion 31 or the recessed portion engaged with the recessed portion and far away from the twisting limiting structure on one end of the elastic tube can be driven to be twisted therewith, and so on, so that the twisting force on one end of the elastic tube can be smoothly transmitted to the other end of the elastic tube, and the synchronous twisting of the whole elastic tube can be realized, and the twisting resistance (namely the twisting resistance) of the elastic tube is improved.
It will be appreciated that during the processing of the elastic tube, the elastic tube may be cut in a spiral direction of the spiral cut groove 1 to form the recess and the third protruding part 31 capable of being engaged with each other.
Preferably, the depressed part is formed by first cell wall, first protruding portion 21 and depressed part set gradually on the extending direction of first cell wall, third protruding portion 31 is formed by the second cell wall, third protruding portion 31 sets gradually with second protruding portion 22 on the extending direction of second cell wall, can set gradually a plurality of crooked limit structure 2 and a plurality of limit structure 3 that twists reverse on the spiral cutting groove 1 of elastic tube this moment, thereby reduce the complexity of cutting the line in the elastic tube, simplify the processing degree of difficulty of elastic tube, and then reduce the processing cost and the production cycle of elastic tube, and have higher economic benefits.
This application does not do the injecing to a plurality of crooked limit structure 2 and twist reverse limit structure's connection order on spiral cutting groove 1, and a plurality of crooked limit structure 2 and a plurality of connection order of twisting limit structure can set up as required.
In an embodiment, all the torsion limiting structures are arranged at intervals in the extending direction of the spiral cutting groove 1, and one or more bending limiting structures 2 are arranged between two adjacent torsion limiting structures, so that the bending limiting capability of the elastic tube is improved through the plurality of bending limiting structures 2 on the premise of ensuring the torsion resistance of the elastic tube.
In another embodiment, all the bending limit structures 2 are arranged at intervals in the extending direction of the spiral cutting groove 1, and one or more twisting limit structures are arranged between two adjacent bending limit structures 2, so that the twisting resistance of the elastic pipe is improved through the plurality of twisting limit structures on the premise of ensuring the bending limit capability of the elastic pipe.
Referring to fig. 2, in this embodiment, the number of the torsion limiting structures and the number of the bending limiting structures 2 are multiple, all the torsion limiting structures are arranged at intervals in the extending direction of the spiral cutting groove 1, and one bending limiting structure 2 is arranged between two adjacent torsion limiting structures, that is, the multiple bending limiting structures 2 and the multiple torsion limiting structures are arranged at intervals in the extending direction of the spiral cutting groove 1, so that each circle of spiral cutting groove 1 can be ensured to have good bending limiting capability and anti-torsion capability, and the performance consistency of each position of the elastic tube can be ensured, thereby avoiding the damage of a part of the area when the elastic tube is bent or twisted, and prolonging the service life of the elastic tube.
To sum up, the utility model provides an elastic tube is last to be provided with at least one crooked limit structure 2, and first protruding portion 21 and second protruding portion 22 among the at least one crooked limit structure 2 can produce relative movement in step when crooked. When the elastic tube is bent to a certain angle, the first protruding part 21 and the second protruding part 22 can be locked with each other, so that the maximum bending angle of the elastic tube is limited, the problem that the elastic tube is not limited in bending is solved, the risks of deformation and fracture of the elastic tube are reduced, and the service life of the elastic tube is prolonged. Meanwhile, the complexity of cutting lines in the metal elastic pipe is simplified, the processing cost is low, the production period is short, and the economic benefit is high. In addition, the elastic tube can also have good adaptability, can be conveniently applied to various products, and has more flexible application scenes.
The utility model provides an elasticity pipe still can be through twisting the setting of limit structure 3, makes the smooth conduction torsional force of elasticity pipe in the axial to can solve the poor problem of elasticity pipe torsional property, produce deformation and damage, the life of extension elasticity pipe when avoiding the elasticity pipe to twist reverse.
The above description is only for the preferred embodiment of the present invention, and not for any limitation of the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure all belong to the protection scope of the present invention.
Claims (10)
1. An elastic tube is characterized by comprising a spiral cutting groove which is arranged around the circumference of the elastic tube and extends along the axial direction of the elastic tube, wherein the spiral cutting groove comprises a first groove wall and a second groove wall which are oppositely arranged, and at least one bending limiting structure is formed on the first groove wall and the second groove wall;
the flexion limiting structure comprises a first protrusion and a second protrusion, the first protrusion extending from the first groove wall to the second groove wall side, the second protrusion extending from the second groove wall to the first groove wall side; the first and second projections of at least one bend limiting structure interlock with each other when the resilient tube is axially bent to a maximum angle.
2. The elastomeric tube of claim 1, wherein the first protrusion has a groove in which the second protrusion moves relative to the first protrusion.
3. The flexible tube of claim 2, wherein the first protrusion and the second protrusion are each independently L-shaped or T-shaped.
4. The flexible tube of claim 2, wherein the bend limiting structure includes two of the first projections and one of the second projections, the second projection being disposed in the groove formed by the two first projections.
5. The flexible tube of claim 1, wherein the first protrusion has a first surface, the second protrusion has a second surface, the first surface and the second surface are disposed opposite to each other with a gap therebetween, and the first surface and the second surface abut to lock the first protrusion and the second protrusion to each other.
6. The elastic tube of claim 1, wherein the bend limiting structures in two axially adjacent turns of the elastic tube on the spiral cut groove are staggered in the circumferential direction of the elastic tube.
7. The elastomeric tube of claim 1, wherein the first and second slot walls are further formed with at least one twist stop feature comprising a recess and a third protrusion inserted into the recess; the recess is formed by one of the first and second slot walls, the other of the first and second slot walls forming the third protrusion; the recess and the third protrusion remain relatively stationary in the circumferential direction when the resilient tube is circumferentially twisted.
8. The elastic tube according to claim 7, wherein the number of the torsion stoppers and the number of the bending stoppers are plural, all the torsion stoppers are disposed at intervals in the extending direction of the spiral cut groove, and one of the bending stoppers is disposed between two adjacent torsion stoppers.
9. A probe insertion structure comprising the elastic tube according to any one of claims 1 to 8.
10. A flexible probe comprising a handle, a probe insertion structure according to claim 9, and a camera module connected in series.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123457101.6U CN217066330U (en) | 2021-12-30 | 2021-12-30 | Elastic tube, probe insertion structure and flexible probe |
| PCT/CN2022/140281 WO2023125138A1 (en) | 2021-12-30 | 2022-12-20 | Elastic tube, detector insertion structure and flexible detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123457101.6U CN217066330U (en) | 2021-12-30 | 2021-12-30 | Elastic tube, probe insertion structure and flexible probe |
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| Publication Number | Publication Date |
|---|---|
| CN217066330U true CN217066330U (en) | 2022-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123457101.6U Active CN217066330U (en) | 2021-12-30 | 2021-12-30 | Elastic tube, probe insertion structure and flexible probe |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN217066330U (en) |
| WO (1) | WO2023125138A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023125138A1 (en) * | 2021-12-30 | 2023-07-06 | 微创优通医疗科技（上海）有限公司 | Elastic tube, detector insertion structure and flexible detector |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5286049B2 (en) * | 2008-11-25 | 2013-09-11 | 富士フイルム株式会社 | Endoscope |
| CN110160676B (en) * | 2018-02-11 | 2021-10-26 | 上海微创电生理医疗科技股份有限公司 | Pressure sensor and electrophysiology catheter thereof |
| CN109288486B (en) * | 2018-10-22 | 2021-03-26 | 上海安清医疗器械有限公司 | Multi-section bending tube device of endoscope and endoscope |
| CN212879241U (en) * | 2020-04-24 | 2021-04-06 | 深圳市美好创亿医疗科技股份有限公司 | Insertion tube and endoscope |
| CN113842102A (en) * | 2021-09-23 | 2021-12-28 | 上海微创医疗机器人（集团）股份有限公司 | Flexible member, flexible probe, and endoscope device |
| CN217066330U (en) * | 2021-12-30 | 2022-07-29 | 微创优通医疗科技（上海）有限公司 | Elastic tube, probe insertion structure and flexible probe |
-
2021
- 2021-12-30 CN CN202123457101.6U patent/CN217066330U/en active Active
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2022
- 2022-12-20 WO PCT/CN2022/140281 patent/WO2023125138A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023125138A1 (en) * | 2021-12-30 | 2023-07-06 | 微创优通医疗科技（上海）有限公司 | Elastic tube, detector insertion structure and flexible detector |
Also Published As
| Publication number | Publication date |
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| WO2023125138A1 (en) | 2023-07-06 |
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