CN114938937B - Haulage rope pretension structure, endoscope handle and endoscope - Google Patents
Haulage rope pretension structure, endoscope handle and endoscope Download PDFInfo
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- CN114938937B CN114938937B CN202210539534.6A CN202210539534A CN114938937B CN 114938937 B CN114938937 B CN 114938937B CN 202210539534 A CN202210539534 A CN 202210539534A CN 114938937 B CN114938937 B CN 114938937B
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Classifications
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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
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
- A61B1/0055—Constructional details of insertion parts, e.g. vertebral elements
-
- 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
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
- A61B1/0052—Constructional details of control elements, e.g. handles
-
- 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
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
- A61B1/0057—Constructional details of force transmission elements, e.g. control wires
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Endoscopes (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Abstract
The invention is applicable to the technical field of endoscopes, and provides a haulage rope pre-tightening structure, an endoscope handle and an endoscope, wherein the haulage rope pre-tightening structure comprises the following components: the adjusting layer is connected with the traction rope at one end; the fixing layers are distributed along the axial direction of the adjusting layer; the fixing layer is used for limiting the axial sliding of the adjusting layer along the fixing layer. The utility model provides an endoscope pretension structure, through utilizing the pulling force of adjustment layer to carry out pretension, the length adjustment of haulage rope that can be self-adaptation does not need the manual work to adjust the pretightning force of haulage rope many times through the driving lever on the handle, and is simple and convenient.
Description
Technical Field
The invention relates to the technical field of endoscopes, in particular to a traction rope pre-tightening structure, an endoscope handle and an endoscope.
Background
The endoscope is a commonly used medical instrument, can directly enter the examination instrument of the natural pipeline of the human body, and can provide sufficient diagnostic information for doctors to treat diseases. When in use, the insertion part of the endoscope enters the human body through the natural duct of the human body or through the small incision made by the operation, and the doctor can directly peep at the change of the related parts.
The insertion portion of an endoscope generally includes a snake bone segment, a passive bending segment, and an insertion tube segment. The snake bone segments drive the snake bones to rotate in different directions by adjusting the tension of the traction rope, the pretightening force of the traction rope is usually required to be adjusted by manual control for multiple times, and the adjustment force cannot be accurately controlled.
Disclosure of Invention
The invention aims to provide a traction rope pre-tightening structure, an endoscope handle and an endoscope, which are used for solving the technical problems in the prior art and mainly comprise the following three aspects:
the first aspect of the present invention provides a traction rope pre-tightening structure, comprising:
the adjusting layer is connected with the traction rope at one end;
the fixing layers are distributed along the axial direction of the adjusting layer;
the fixing layer is used for limiting the axial sliding of the adjusting layer along the fixing layer.
Further, the pre-tightening structure further comprises a first connecting piece and a second connecting piece;
one end of the first connecting piece is fixedly connected with one end of the adjusting layer;
one end of the second connecting piece is fixedly connected with the other end of the adjusting layer, and the other end of the second connecting piece is fixedly connected with the traction rope.
Further, the adjusting layer is a spring.
Further, the fixing layer is a heat shrinkage tube.
Further, the heat-shrinkable tube is internally provided with a hot melt adhesive, and the adjusting layer is limited to slide relative to the fixing layer along the axial direction of the fixing layer through the hot melt adhesive.
Further, at least one end of the first connector and the second connector is provided with a guide portion.
Further, the cross-sectional diameters of the first connecting piece and the second connecting piece are respectively equal to the cross-sectional diameter of the adjusting layer.
A second aspect of the present invention provides an endoscope handle comprising: the traction rope comprises a turntable and the traction rope pre-tightening structure, wherein one end of the pre-tightening structure is fixedly connected with the turntable;
or one end of the pre-tightening structure is fixedly connected with the turntable through a traction rope.
Further, the haulage rope bypasses the edge of the turntable, and two ends of the haulage rope are connected with the pre-tightening structure.
In a third aspect the invention provides an endoscope comprising an endoscope handle as described above.
Compared with the prior art, the invention has at least the following technical effects:
(1) The utility model provides an endoscope pretension structure, through utilizing the pulling force of adjustment layer to carry out pretension, the length adjustment of haulage rope that can be self-adaptation does not need the manual work to adjust the pretightning force of haulage rope many times through the driving lever on the handle, and is simple and convenient.
(2) The utility model provides a with adjustment layer setting to the spring, utilize the spring when receiving external force to be in the extension state, can produce the pulling force that corresponds with external force, carry out self shrink, this kind of pulling force effect that this application utilized the spring to produce carries out the pretension to the haulage rope, and the length of the self-adaptation regulation haulage rope of deformation that produces under the effect of pulling force according to the spring need not the manual work and carries out the pretension regulation to the haulage rope many times, simple structure need not artificial participation and can realize the pretension to the haulage rope.
(3) Be provided with guiding portion on at least one of first connecting piece and second connecting piece in this application, when the pyrocondensation pipe is from arbitrary one end in first connecting piece and the second connecting piece entering, the guiding portion that corresponds can make the quick smooth entering spring surface of pyrocondensation pipe wrap up it.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the embodiments of the present invention or the drawings used in the description of the prior art, and it is obvious that the drawings described below are only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a first configuration of an endoscope handle in accordance with the present invention;
FIG. 2 is a schematic view of a second configuration of the endoscope handle of the present invention;
FIG. 3 is a schematic diagram of a pretensioning structure of a haulage rope according to the present invention;
FIG. 4 is a first schematic cross-sectional view of a traction rope pretensioning structure in the present invention;
FIG. 5 is a second schematic cross-sectional view of a traction rope pretensioning structure in the invention
FIG. 6 is a schematic view of the structure of the adjusting layer and the first and second connectors according to the present invention;
in the figure: 10-a turntable; 20-a pre-tightening structure; 21-a fixed layer; 22-an adjustment layer; 23-a first connector; 24-a second connector; 231-a guide; 241-a guide; 30-hauling ropes.
Detailed Description
The following description provides many different embodiments, or examples, for implementing different features of the invention. The elements and arrangements described in the following specific examples are presented for purposes of brevity and are provided only as examples and are not intended to limit the invention.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
The invention aims to provide a traction rope pre-tightening structure, an endoscope handle and an endoscope, which are used for solving the technical problems in the prior art and mainly comprise the following three aspects:
embodiment one:
an embodiment of the present invention provides a traction rope pre-tightening structure 20, including:
an adjustment layer 22, wherein one end of the adjustment layer 22 is connected with a traction rope 30;
a fixing layer 21, wherein the fixing layer 21 is distributed along the axial direction of the adjusting layer 22;
the fixing layer 21 is used for limiting the axial sliding of the adjusting layer 22 along the fixing layer 21.
As shown in fig. 1-6, the traction rope pre-tightening structure 20 is cylindrical, two layers are distributed along the radial direction of the traction rope pre-tightening structure 20, one layer is an adjusting layer 22, one end of the adjusting layer 22 is connected with other components and used for fixing the adjusting layer, the other end of the adjusting layer is connected with the traction rope 30, and the traction rope connected with the snake bone is pre-tightened through the elastic tension of the adjusting layer 22; the outer part of the adjusting layer 22 is sleeved with a fixing layer 21, the inner wall of the fixing layer 21 is fixedly connected with the outer wall of the adjusting layer 22, and the movement of the adjusting layer 22 along the axial direction of the fixing layer 21 is limited, so that the rigidity of the adjusting layer 22 is increased, the traction rope is driven rigidly, and meanwhile, the traction rope 30 can be pre-tightened.
The utility model provides an endoscope pretension structure, through utilizing the pulling force of adjustment layer to carry out pretension, the length adjustment of haulage rope that can be self-adaptation does not need the manual work to adjust the pretightning force of haulage rope many times through the driving lever on the handle, and is simple and convenient.
Further, the pre-tightening structure 20 further includes a first connecting member 23 and a second connecting member 24;
one end of the first connecting piece 23 is fixedly connected with one end of the adjusting layer 22;
one end of the second connecting piece 24 is fixedly connected with the other end of the adjusting layer 22, and the other end of the second connecting piece 24 is fixedly connected with the traction rope 30.
In the above-mentioned scheme, as shown in fig. 4, a first connecting piece 23 and a second connecting piece 24 are further disposed at two ends of the adjustment layer 22, where the first connecting piece 23 and the second connecting piece 24 are fixedly connected with two corresponding ends of the adjustment layer 22, and the fixed connection manner may be an integral molding manner, a welding manner, an adhesive manner, a threaded connection manner, and the like, which is not limited herein; the first connecting piece 23 and the second connecting piece 24 are arranged at the two ends of the adjusting layer 22, so that the adjusting layer can be connected with the traction rope 30 or other components conveniently, and the situation that the adjusting layer 22 cannot be directly connected with the traction rope 30 or other components or is easy to fall off and break after being connected is avoided.
Further, the adjustment layer 22 is a spring.
Among the above-mentioned scheme, the preferred spring of layer 22 will be adjusted in this application, utilize the spring to receive when external force is in the extension state, can produce the pulling force that corresponds with external force, carry out self shrink, this kind of pulling force effect that this kind of application utilized the spring to produce carries out pretension to the haulage rope, and the length of haulage rope is adjusted in the deformation self-adaptation that produces under the effect of pulling force according to the spring, do not need the manual work to carry out pretension to the haulage rope many times and adjust, simple structure need not artificial participation and can realize the pretension to the haulage rope.
Further, the fixing layer 21 is a heat-shrinkable tube.
Further, the inside of the heat shrinkable tube is provided with a hot melt adhesive by which the adjustment layer 22 is restricted from sliding relative to the fixing layer 21 in the axial direction of the fixing layer 21.
In the above solution, the fixing layer 21 is preferably a heat shrink tube, and the material of the heat shrink tube is one of TPE, TPU, PU, PTFE, LDPE, HDPE, PEBAX, PE, EVA, PVC, PET; the heat shrinkage tube is at least used for wrapping all outer walls of the spring, and can also be used for at least partially wrapping the first connecting piece 23 and the second connecting piece 24, at least partially referring to the parts of the first connecting piece 23 and the second connecting piece 24 connected with the spring respectively, and also can be used for completely wrapping the first connecting piece 23 and the second connecting piece 24; after the spring is connected with the first connecting piece 23 and the second connecting piece 24, the heat shrinkage pipe is sleeved on the surfaces of the spring, and the heat shrinkage pipe is heated, so that the heat shrinkage pipe is internally provided with the hot melt adhesive, the hot melt adhesive can infiltrate into gaps of the spring, the spring is fixed by the hot melt adhesive at the moment, the spring is not elastic, the spring is limited to slide and rotate in the heat shrinkage pipe, the traction rope is prevented from twisting, and the traction rope pre-tightening mechanism formed at the moment can rigidly drive the traction rope, so that bending of snake bones connected with the traction rope along different directions is realized.
In addition, a mandrel, a core tube, a heat shrink tube, etc. may be provided in the spring, and the spring may be fixedly connected to the mandrel, the core tube, the heat shrink tube, etc. by means of adhesion, etc. so that the spring may be rigidly driven to move by the traction rope.
Further, at least one end of the first and second connection members 23, 24 is provided with a guide portion (231, 241).
In the above-mentioned scheme, as shown in fig. 5, a guiding portion 231 is disposed at one end of the first connecting piece 23 far away from the spring, and a guiding portion 241 is disposed at one end of the second connecting piece 24 far away from the spring, and when the heat shrink tube enters from any one end of the first connecting piece 23 and the second connecting piece 24, the corresponding guiding portion can make the heat shrink tube quickly and smoothly enter the surface of the spring to wrap the heat shrink tube.
It should be noted that, in the present application, the specific shapes of the first connector 23 and the second connector 24 are not limited, and may be cylindrical, hexagonal prism, etc.; the material of the first and second connection members 23 and 24 is not limited herein, and may be metal such as iron, copper, or the like.
Further, the cross-sectional diameters of the first connecting member 23 and the second connecting member 24 are respectively equal to the cross-sectional diameter of the adjustment layer 22.
In the above-mentioned scheme, with first connecting piece 23 with the cross-sectional diameter of second connecting piece 24 set up respectively equal with the diameter of spring pipe, the purpose is when the pyrocondensation pipe carries out the pyrocondensation after, can form the step face in spring and corresponding connecting piece junction, prevents that the circumstances such as rupture of pyrocondensation pipe from taking place, when the diameter of connecting piece and spring pipe is the same, when the pyrocondensation pipe is in the pyrocondensation that takes place, the pyrocondensation pipe surface of connecting piece and spring pipe junction can be smooth compared the face, does not have the appearance of step face.
In the application, the pretightening of the traction rope by adopting the pretightening structure is realized as follows: before pre-tightening, the heat shrinkage pipe is only sleeved on the spring and is not subjected to heat shrinkage; when the traction rope is pre-tensioned, if the actual length of the traction rope is smaller than the preset length of the traction rope, the spring is in a stretched state, and the stretching amount of the spring plus the actual length of the traction rope is equal to the preset length of the traction rope; if the actual length of the provided traction rope is greater than the preset length of the traction rope, an external force can be applied to the spring to enable the spring to stretch along the direction away from the snake bone, one end of the spring, which is close to the snake bone, is in a contracted state, the traction rope is stretched along the direction away from the snake bone, and at the moment, the actual length of the traction rope minus the contraction amount of the spring is equal to the preset length of the traction rope; after the pretension is finished, the heat shrinkage tube is heated, so that the hot melt adhesive can infiltrate into the gaps of the spring, the spring is fixed by the hot melt adhesive at the moment and does not have elasticity, the sliding and rotation of the spring in the heat shrinkage tube are limited, the traction rope is prevented from twisting, and the traction rope pretension mechanism formed at the moment can rigidly drive the traction rope to realize bending of snake bones connected with the traction rope in different directions.
Embodiment two:
a second embodiment of the present invention provides an endoscope handle, including: the device comprises a turntable 10 and the traction rope pre-tightening structure 20, wherein one end of the pre-tightening structure 20 is fixedly connected with the turntable 10;
or, one end of the pre-tightening structure 20 is fixedly connected with the turntable 10 through a traction rope 30.
Further, the traction rope 30 bypasses the edge of the turntable 10, and two ends of the traction rope 30 are connected with the pre-tightening structure 20.
In the above scheme, the turntable 10 and the pre-tightening structure 20 are both installed in the handle of the endoscope, and the connection manner between the pre-tightening structure 20 and the turntable can be as follows:
as shown in fig. 1, in the first embodiment, a connecting portion is symmetrically disposed along the center in a groove at the edge of the turntable, and one end of the first connecting member 23 in the pre-tightening structure 20, which is far away from the spring, is fixedly connected with the connecting portion.
As shown in fig. 2, in the second type, a connecting portion is symmetrically arranged along the center in a groove at the edge of the turntable, and one end of the first connecting piece 23 in the pre-tightening structure 20, which is far away from the spring, is connected with the connecting portion on the turntable through a traction rope 30.
Third, a pre-tightening structure 20 is respectively arranged along two sides of the turntable, the traction rope 30 bypasses the groove at the edge of the turntable 10, and two ends of the traction rope are fixedly connected with one end, far away from the spring, of the first connecting piece 23 in the pre-tightening structure 20 at the corresponding side.
Embodiment III:
the third embodiment of the invention provides an endoscope, which comprises the endoscope handle.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. A traction rope pretensioning structure (20), characterized by comprising:
an adjusting layer (22), wherein one end of the adjusting layer (22) is connected with a traction rope (30);
-a fixed layer (21), said fixed layer (21) being distributed along the axial direction of said adjustment layer (22);
the fixing layer (21) is used for limiting the axial sliding of the adjusting layer (22) along the fixing layer (21);
before pre-tightening, the fixing layer (21) is only sleeved on the adjusting layer (22), after pre-tightening, the fixing layer (21) is heated, so that the adjusting layer (22) is fixed along the axial direction, and the traction rope pre-tightening structure (20) can rigidly drive the traction rope (30) to bend snake bones connected with the traction rope (30) along different directions.
2. The traction rope pretensioning structure (20) according to claim 1, wherein the pretensioning structure (20) further comprises a first connection member (23) and a second connection member (24);
one end of the first connecting piece (23) is fixedly connected with one end of the adjusting layer (22);
one end of the second connecting piece (24) is fixedly connected with the other end of the adjusting layer (22), and the other end of the second connecting piece (24) is fixedly connected with the traction rope (30).
3. The traction rope pretensioning structure (20) according to claim 1, wherein the adjustment layer (22) is a spring.
4. The traction rope pretensioning structure (20) according to claim 1, wherein the fixing layer (21) is a heat shrink tube.
5. The traction rope pretensioning structure (20) according to claim 4, wherein the inside of the heat shrink tube has a hot melt adhesive by which the adjustment layer (22) is restrained from sliding in the axial direction of the fixing layer (21) with respect to the fixing layer (21).
6. The traction rope pretensioning structure (20) according to claim 2, characterized in that at least one of the first coupling member (23) and the second coupling member (24) is provided at one end with a guide portion (231, 241).
7. The traction rope pretensioning structure (20) according to claim 2, wherein the cross-sectional diameters of the first connection element (23) and the second connection element (24) are respectively equal to the cross-sectional diameter of the adjustment layer (22).
8. An endoscope handle, comprising: a turntable (10) and a traction rope pre-tightening structure (20) according to one of claims 1 to 5, wherein one end of the pre-tightening structure (20) is fixedly connected with the turntable (10);
or one end of the pre-tightening structure (20) is fixedly connected with the rotary table (10) through a traction rope (30).
9. An endoscope handle according to claim 8, characterized in that said pulling cord (30) is wound around the edge of said turntable (10), both ends of said pulling cord (30) being connected to said pre-tightening structure (20).
10. An endoscope comprising an endoscope handle as defined in any one of claims 8-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210539534.6A CN114938937B (en) | 2022-05-18 | 2022-05-18 | Haulage rope pretension structure, endoscope handle and endoscope |
| PCT/CN2023/081131 WO2023221617A1 (en) | 2022-05-18 | 2023-03-13 | Traction rope pre-tightening structure, endoscope handle, and endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210539534.6A CN114938937B (en) | 2022-05-18 | 2022-05-18 | Haulage rope pretension structure, endoscope handle and endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114938937A CN114938937A (en) | 2022-08-26 |
| CN114938937B true CN114938937B (en) | 2024-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210539534.6A Active CN114938937B (en) | 2022-05-18 | 2022-05-18 | Haulage rope pretension structure, endoscope handle and endoscope |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114938937B (en) |
| WO (1) | WO2023221617A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114938937B (en) * | 2022-05-18 | 2024-03-08 | 湖南省华芯医疗器械有限公司 | Haulage rope pretension structure, endoscope handle and endoscope |
| CN115530916B (en) * | 2022-12-02 | 2023-03-21 | 成都美创医疗科技股份有限公司 | Outer cutter assembly and planer tool with adjustable bending angle |
| CN117547215A (en) * | 2024-01-08 | 2024-02-13 | 江苏永乐医疗科技有限公司 | Anesthesia video laryngoscope and light source |
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Also Published As
| Publication number | Publication date |
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| CN114938937A (en) | 2022-08-26 |
| WO2023221617A1 (en) | 2023-11-23 |
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