CN219721622U - Transparent sheath pipe body structure and sheath pipe - Google Patents
Transparent sheath pipe body structure and sheath pipe Download PDFInfo
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- CN219721622U CN219721622U CN202320597159.0U CN202320597159U CN219721622U CN 219721622 U CN219721622 U CN 219721622U CN 202320597159 U CN202320597159 U CN 202320597159U CN 219721622 U CN219721622 U CN 219721622U
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 31
- 230000002787 reinforcement Effects 0.000 claims abstract description 15
- 238000005253 cladding Methods 0.000 claims abstract description 11
- 238000004804 winding Methods 0.000 claims description 12
- 239000002861 polymer material Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 6
- 229920001169 thermoplastic Polymers 0.000 claims description 5
- 229920006352 transparent thermoplastic Polymers 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 12
- 208000027418 Wounds and injury Diseases 0.000 abstract description 10
- 230000008901 benefit Effects 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 6
- 208000014674 injury Diseases 0.000 abstract description 4
- 230000000638 stimulation Effects 0.000 abstract description 3
- 238000005452 bending Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of sheath pipes, and provides a transparent sheath pipe body structure and a sheath pipe, wherein the transparent sheath pipe body structure comprises: the main body comprises an inner liner layer, a reinforcing layer and an outer cladding layer which are concentrically arranged from inside to outside; the reinforcement layer is spirally wound with a coil having a density that gradually increases in a direction from a proximal end to a distal end of the reinforcement layer such that the compliance of the distal end of the reinforcement layer is higher than the compliance of the proximal end. The transparent pipe body structure can effectively ensure the strong support and strong control performance of the proximal end section of the pipe body structure; the good radial supporting force of the distal end section of the pipe body structure is ensured, the compliance and the compliance of the distal end section are improved, and the capability of the distal end section to pass through a tortuous channel is greatly enhanced; the soft compliance of the distal end section is convenient for medical staff to clinically operate the product, and simultaneously can minimize the stimulation injury to the blockage or tortuous channel of a patient in the use process of the product, and rapidly establish an intervention channel, thereby bringing clinical benefit to the patient.
Description
Technical Field
The utility model relates to the technical field of sheath pipes, in particular to a transparent sheath pipe body structure and a sheath pipe.
Background
Certain mucous membrane passages of a human body are usually tiny, tortuous, adhesion stenosis and foreign matter incarceration are easy to occur, obstruction is caused, treatment is needed through operation, an operation channel is needed to be established in the tortuous passages during operation, and the operation is conducted through an operation channel leading-in instrument. The sheath is a core surgical instrument for establishing a passage to implement interventional diagnosis and treatment, can perform passage expansion of a corresponding surgical cavity, and establishes a continuously maintained surgical channel for introducing the surgical instrument and implementing interventional operation.
However, the distal end of the tube body of the sheath tube used in clinic is harder, the flexibility is poor, the steering adjustment or the compliant bending operation of the distal end is difficult to realize, the expansion cavity range of the sheath tube product is small, the operation space is narrow, the distal end of the sheath tube is difficult to conform to a tortuous channel passing through a patient, the distal end is harder, the side injury is easy to be brought to the patient in the pushing process, and even the cavity is torn; even if the product is in tortuosity at the far end, the pipe body of the product is easy to be folded or broken in the pushing process, and the expected realization of the clinical function of the product is affected.
Disclosure of Invention
Therefore, the technical problem to be solved by the utility model is that the distal end of the tube body of the sheath tube used in clinic is harder, the flexibility is poor, the steering adjustment or the compliant bending operation of the distal end is difficult to realize, the expansion cavity range of the sheath tube product is small, the operation space is narrow, the distal end of the sheath tube is difficult to conform to a tortuous channel passing through a patient, and the distal end is harder, and side damage is easy to be brought to the patient in the pushing process, even the cavity is torn; even if the product is in a tortuosity at the far end, the tube body is easy to be folded or broken in the pushing process, and the expected realization of the clinical function of the product is affected, so that the transparent sheath tube body structure and the sheath tube are provided.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
a transparent sheath tube body structure comprising: the main body comprises an inner liner layer, a reinforcing layer and an outer cladding layer which are concentrically arranged from inside to outside; the reinforcement layer is spirally wound with coils having a density that gradually increases in a direction from a proximal end to a distal end of the reinforcement layer such that the distal end of the reinforcement layer has a higher compliance than the proximal end.
Further, the proximal end section of the reinforcing layer is formed by winding a double-coil or multi-coil positive and negative spiral in a crossed manner, and the distal end section of the reinforcing layer is formed by winding a single-coil spiral.
Further, the coil comprises one or more of a metal wire or a polymer wire.
Further, the inner liner is made of a material having a low coefficient of friction so that its lumen has a low through resistance; the outer cladding is made of thermoplastic polymer materials.
Further, the hardness of the material of the outer cladding gradually decreases in a direction from the proximal end to the distal end of the outer cladding, so that the hardness of the tubular body structure uniformly decreases in a direction from the proximal end to the distal end of the tubular body structure.
Further, the distal section of the outer wrap, or the complete sections of the distal and proximal ends, are made of a transparent thermoplastic polymer material to monitor the position or status of the instrument or substance within the tubular body structure.
A sheath comprising the transparent sheath shaft structure of any one of the above.
The technical scheme of the utility model has the following advantages:
according to the transparent sheath tube body structure, the reinforcing layer is formed by spirally winding the coil, so that the strong support and strong control performance of the proximal end section of the tube body structure can be effectively ensured; and while ensuring good radial support force of the distal end section of the tube body structure, improving the compliance of the distal end section, so that the ability of the distal end section to pass through a tortuous channel is greatly enhanced; moreover, the soft compliance of the distal end section is convenient for medical staff to clinically operate the product, and simultaneously can minimize the stimulation injury to the blockage or tortuosity channel of a patient in the use process of the product, and rapidly establish an intervention channel, thereby bringing clinical benefit to the patient.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a transparent sheath tube structure according to an embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of portion A in FIG. 1;
FIG. 3 is a schematic view of a reinforcing layer in a transparent sheath tube structure according to an embodiment of the present utility model.
Reference numerals illustrate:
1. a main body; 2. an inner liner layer; 3. a reinforcing layer; 4. an outer cladding; 5. a proximal section of the reinforcement layer; 6. distal segments of the reinforcing layer.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
FIG. 1 is a schematic view of a transparent sheath tube structure according to an embodiment of the present utility model; FIG. 2 is an enlarged schematic view of portion A in FIG. 1; FIG. 3 is a schematic view of a reinforcing layer in a transparent sheath tube structure according to an embodiment of the present utility model; as shown in fig. 1, 2 and 3, the present embodiment provides a transparent sheath tube structure, which includes: the main body 1 comprises an inner liner layer 2, a reinforcing layer 3 and an outer wrapping layer 4 which are concentrically arranged from inside to outside; the reinforcement layer 3 is spirally wound with a density of coil windings gradually increasing in a proximal to distal direction of the reinforcement layer 3 so that a distal end of the reinforcement layer 3 has a higher compliance than a proximal end.
The transparent sheath tube body structure provided by the embodiment is characterized in that the reinforcing layer 3 is formed by spirally winding the coil, so that the strong support and strong control performance of the proximal end section of the tube body structure can be effectively ensured; and while ensuring good radial support force of the distal end section of the tube body structure, improving the compliance of the distal end section, so that the ability of the distal end section to pass through a tortuous channel is greatly enhanced; moreover, the soft compliance of the distal end section is convenient for medical staff to clinically operate the product, and simultaneously can minimize the stimulation injury to the blockage or tortuosity channel of a patient in the use process of the product, and rapidly establish an intervention channel, thereby bringing clinical benefit to the patient.
Wherein, the proximal end section 5 of the reinforcing layer is formed by winding a double-coil or multi-coil positive and negative spiral in a crossed manner, and the distal end section 6 of the reinforcing layer is formed by winding a single-coil spiral.
Wherein the coil comprises one or more of a metal wire or a polymer wire.
Wherein the inner liner 2 is made of a material having a low friction coefficient so that its inner cavity has a low passing resistance; the outer wrapping layer 4 is made of thermoplastic polymer material.
Wherein the hardness of the material of the outer cladding 4 gradually decreases in the proximal to distal direction of the outer cladding 4 so that the hardness of the tubular body structure decreases uniformly in the proximal to distal direction of the tubular body structure.
Wherein the distal section of the outer wrap 4 or the complete sections of the distal and proximal ends are made of a transparent thermoplastic polymer material in order to monitor the position or status of the instrument or substance within the tubular body structure.
Another embodiment also provides a sheath comprising the transparent sheath shaft structure of any one of the above.
Specifically, the transparent sheath tube body structure is composed of an inner liner layer 2, a middle reinforcing layer 3 and an outer wrapping layer 4, wherein the inner liner layer 2 can be made of a material with a low friction coefficient, so that the inner cavity of the inner liner layer has low passing resistance, the middle reinforcing layer 3 can be in a reinforcing structure form of spirally winding a coil, and the outer wrapping layer 4 can be made of a thermoplastic polymer material.
For example, the middle reinforcing layer 3 may be a metal wire or a high-strength polymer wire, the proximal end section 5 of the reinforcing layer may be a double-coil or multi-coil wound reinforcement, and the distal end section 6 of the reinforcing layer may be a single-coil wound reinforcement.
For example, the middle reinforcing layer 3 can be changed according to the requirement of clinically required transition of the sheath from the proximal end to the distal end, so that the degree of the density of the coil wound by the middle reinforcing layer 3 can be adjusted, and the sheath body can realize uniform change of the hardness of the sheath body from the proximal end to the distal end; wherein, the denser the coil coiling, the softer the pipe shaft, the more sparse the coil coiling, the harder the pipe shaft. By the arrangement, the near end of the tube body structure can be supported, controlled and pushed strongly, and the far end section is soft and compliant.
For example, when the outer wrapping layer 4 is made of thermoplastic polymer material, the outer wrapping layer can be effectively wrapped on the outer surfaces of the inner liner layer 2 and the reinforcing layer 3 through a hot air welding process, so that the proximal end section of the outer wrapping layer 4 can be made of a material harder than the distal end section, and the outer layer of the distal end section of the outer wrapping layer 4 can be made of a material softer than the proximal end section, so as to realize strong support, strong control and good softness and compliance of the distal end. By the arrangement, the hardness of the pipe body structure is uniformly changed from the near end to the far end through the composite superposition of the outer cladding layer 4 and the reinforcing layer 3.
For example, the distal section of the outer cover 4 may alternatively be provided with a transparent thermoplastic polymer material or the entire section of the outer cover 4 may be provided with a transparent thermoplastic polymer material, and the transparent shaft structure may be used to effectively monitor the specific location or condition of the shaft lumen device or other lumen substance via an endoscope.
In summary, the transparent sheath tube body structure and the sheath tube adopt the coil to completely wind the reinforced tube body structure, so that the structure and the realization process are simple, the laser welding or other special process procedures of the sections of the far and near end reinforcing layers of the common sheath tube in the market are reduced, the realization difficulty of products is reduced, the realization manufacturing cost is reduced, the economic benefit is brought to patients, and the development and the progress of the industry can be effectively promoted.
According to the transparent sheath tube body structure and the sheath tube, the proximal end section of the reinforcing layer adopts a double-coil or multi-coil winding reinforcing mode, so that the strong support and strong control performance of the proximal end section of the tube body can be effectively ensured; the distal end section of the reinforcing layer adopts a single-coil winding reinforcing mode, so that the flexible compliance of the distal end section of the sheath can be ensured to the greatest extent while the good radial supporting force of the sheath can be effectively ensured, and the capability of the distal end of the sheath in passing through a tortuous channel is greatly enhanced.
The transparent sheath tube body structure and the sheath tube in the utility model have the advantages that the distal end section of the sheath tube is soft and compliant, the clinical operation of medical staff on products is facilitated, the intervention channel is quickly established, and meanwhile, the side damage to the cavity of a patient in the use process of the products can be reduced to the greatest extent, so that the clinical benefit is brought to the patient.
The transparent sheath tube body structure and the sheath tube in the utility model can realize whether the sheath tube is damaged or not and the degree thereof in the process of placing the sheath tube by an endoscope or a monitoring means and effectively monitor the abnormal condition and the operation effect when the operation is carried out by the operation instrument placed in the sheath tube.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (7)
1. A transparent sheath tube body structure comprising:
the main body comprises an inner liner layer, a reinforcing layer and an outer cladding layer which are concentrically arranged from inside to outside;
the reinforcement layer is spirally wound with coils having a density that gradually increases in a direction from a proximal end to a distal end of the reinforcement layer such that the distal end of the reinforcement layer has a higher compliance than the proximal end.
2. The transparent sheath tube structure of claim 1, wherein,
the proximal end section of the reinforcing layer is formed by winding double coils or multiple coils in a positive and negative spiral cross mode, and the distal end section of the reinforcing layer is formed by winding single coils in a spiral mode.
3. The transparent sheath tube structure of claim 1, wherein,
the coil comprises one or more of a metal wire or a polymer wire.
4. The transparent sheath tube structure of claim 1, wherein,
the inner liner layer is made of a material with a low friction coefficient so that the inner cavity of the inner liner layer has low passing resistance;
the outer cladding is made of thermoplastic polymer materials.
5. The transparent sheath tube structure of claim 4, wherein,
the material stiffness of the overcladding decreases gradually in a proximal to distal direction of the overcladding so that the stiffness of the tubular body structure decreases uniformly in a proximal to distal direction of the tubular body structure.
6. The transparent sheath tube structure of any one of claims 1-5, wherein,
the distal section of the overwrap, or the complete sections of the distal and proximal ends, are made of a transparent thermoplastic polymer material to monitor the position or condition of the instrument or substance within the tubular body structure.
7. A sheath comprising the transparent sheath shaft structure of any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320597159.0U CN219721622U (en) | 2023-03-23 | 2023-03-23 | Transparent sheath pipe body structure and sheath pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320597159.0U CN219721622U (en) | 2023-03-23 | 2023-03-23 | Transparent sheath pipe body structure and sheath pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219721622U true CN219721622U (en) | 2023-09-22 |
Family
ID=88058017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320597159.0U Active CN219721622U (en) | 2023-03-23 | 2023-03-23 | Transparent sheath pipe body structure and sheath pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219721622U (en) |
-
2023
- 2023-03-23 CN CN202320597159.0U patent/CN219721622U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |