CN215605945U - Body pipe fitting assembly structure and intracavity cutting anastomat using same - Google Patents
Body pipe fitting assembly structure and intracavity cutting anastomat using same Download PDFInfo
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- CN215605945U CN215605945U CN202121215951.2U CN202121215951U CN215605945U CN 215605945 U CN215605945 U CN 215605945U CN 202121215951 U CN202121215951 U CN 202121215951U CN 215605945 U CN215605945 U CN 215605945U
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Abstract
The utility model relates to a body tube assembly structure and an intracavity cutting anastomat using the same, which comprise a body inner tube and a body outer tube suitable for being sleeved outside the body inner tube; the pipe wall of the inner pipe of the transformer body is provided with at least one strip-shaped hollow groove; the side wall of one end of the inner pipe of the device body is provided with at least one convex limiting block; the limiting block is formed by extending the end part of the inner tube of the body along the axial direction parallel to the inner tube of the body; the outer tube of the body is provided with a hollow cavity which is communicated along the axial direction of the outer tube; at least one through hole communicated with the hollow cavity is formed in the side wall of the outer tube of the device body, and an elastic sheet protruding towards the hollow cavity is arranged at each through hole; the edge of one axial end of the outer pipe of the device body is provided with a bayonet which is suitable for being in clamping fit with at least one limiting block in a one-to-one correspondence manner; when the outer pipe of the body is sleeved outside the inner pipe of the body, the bayonet is clamped with the limiting block; the elastic sheet is embedded into the strip-shaped hollow groove; the elastic sheet is connected with the strip-shaped hollow groove along the axial direction of the inner tube of the body and the groove wall far away from the limiting block.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a body tube assembly structure and an intracavity cutting anastomat using the same.
Background
Staplers are commonly used in endoscopic surgery. The endoscopic surgery is to transmit images of various organs in the abdominal cavity shot by a camera inserted into the abdominal cavity to a screen through a small incision on the abdomen or the chest, and a doctor operates in vitro through a channel established on the abdominal/chest wall by observing the images and using surgical instruments. One of the surgical instruments for performing extracorporeal procedures is a stapler.
The anastomat body comprises an inner anastomat body pipe and an outer anastomat body pipe sleeved on the outer side of the inner anastomat body pipe. In the anastomat conventionally used in the prior art, when the outer tube of the anastomat body is sleeved outside the inner tube of the anastomat body, the protruding block arranged on the outer side wall of the inner tube of the anastomat body is just inserted into the clamping groove arranged on the outer tube of the anastomat body, and specifically, refer to an anastomat with a hook guide device disclosed in the publication No. CN 211534596U. Due to the structure, in the process of sleeving the outer tube of the transformer body with the inner tube of the transformer body, the outer tube of the transformer body needs to overcome the assembly resistance of the convex block arranged on the outer side wall of the inner tube of the transformer body to the outer tube of the transformer body in an extruding mode, so that the whole process is difficult and laborious for assembling the outer tube of the transformer body and the outer tube of the transformer body, and the deformation of the outer tube of the transformer body due to the extruding process can generate defective products.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a body tube assembly structure, which aims to solve the technical problem of improving the assembly convenience and smoothness of a body outer tube and a body inner tube.
The second objective of the present invention is to provide an endoluminal cutting stapler to solve the technical problem of improving the convenience and smoothness of the assembly of the outer tube and the inner tube of the body.
The utility model discloses a body tube assembly structure, which is realized by the following steps:
a body tube assembly structure, comprising: the device body inner pipe and the device body outer pipe are suitable for being sleeved on the outer side of the device body inner pipe; wherein
The pipe wall of the inner pipe of the transformer body is provided with at least one strip-shaped hollow groove; the side wall of one end of the inner pipe of the device body is provided with at least one convex limiting block; the limiting block is formed by extending the end part of the inner tube of the body along the axial direction parallel to the inner tube of the body;
the outer tube of the body is provided with a hollow cavity which is communicated along the axial direction of the outer tube; at least one through hole communicated with the hollow cavity is formed in the side wall of the outer tube of the device body, and an elastic sheet protruding towards the hollow cavity is arranged at each through hole; a bayonet suitable for being in clamping fit with at least one limiting block in a one-to-one correspondence manner is arranged on the edge of one axial end of the outer pipe of the device body;
when the outer pipe of the body is sleeved outside the inner pipe of the body, the bayonet is clamped with the limiting block; the elastic sheet is embedded into the strip-shaped hollow groove; the elastic sheet is connected with the strip-shaped hollow groove along the axial direction of the inner tube of the body and the groove wall far away from the limiting block.
In an optional embodiment of the utility model, the inner tube of the body and the limiting block are both made of medical polymer plastic materials, an
The outer tube of the body and the spring plate are made of metal materials.
In an optional embodiment of the utility model, a strip-shaped hollow groove is formed on the inner pipe of the device body, and a limit block is arranged on the inner pipe of the device body; and
the outer tube of the device body is provided with a bayonet suitable for being clamped and matched with the limiting block, and the side wall of the outer tube of the device body is provided with an elastic sheet suitable for being embedded into the strip-shaped hollow groove.
In an alternative embodiment of the utility model, the elastic sheet is arranged close to one end of the outer tube of the device body, which is far away from the bayonet.
In an alternative embodiment of the utility model, the through hole is in a rectangular structure; and
one side end of the elastic sheet along the axial direction of the outer tube of the body is connected with the inner side wall of the opening to form a fixed end, and the other three side ends of the elastic sheet are free ends.
In an optional embodiment of the utility model, the free end of the elastic sheet opposite to the fixed end is positioned on the back side of the opening side of the bayonet; and
when the outer tube and the inner tube are assembled in place, the free end of the elastic sheet opposite to the fixed end is suitable for abutting against the wall of the axial end in the strip-shaped hollow groove.
In an alternative embodiment of the utility model, the through hole is in a rectangular structure; and
the elastic sheet is an arc-shaped structural body protruding towards the hollow cavity; two side ends of the elastic sheet along the axial direction of the outer tube of the body are connected with the inner side wall of the opening to form a fixed end, and the other two side ends of the elastic sheet are free ends;
when the outer tube and the inner tube of the transformer body are assembled in place, the side wall surface of the elastic sheet facing the hollow inner cavity of the outer tube of the transformer body is abutted with the wall of the axial end in the strip-shaped hollow groove; and the end surface of the elastic sheet, which is propped against the groove wall of the strip-shaped hollow groove, faces the side wall surface of the hollow inner cavity of the outer pipe of the device body and deviates from the opening.
The intracavity cutting anastomat is realized by the following steps:
an endoluminal cutting stapler comprising: ware body pipe fitting assembly structure.
Compared with the prior art, the embodiment of the utility model has the following beneficial effects: according to the assembly structure of the tube fitting of the body and the intracavity cutting anastomat using the same, in the process that the outer tube of the body is sleeved on the outer side of the inner tube of the body, the outer side wall of the inner tube of the body is not provided with a protruding structure, so that resistance caused by extrusion does not exist in the assembly of the outer tube of the body and the inner tube of the body, and the smoothness and convenience in the assembly process of the outer tube of the body and the inner tube of the body are improved. The limiting block and the bayonet are matched, so that the radial angle rotation phenomenon generated after the outer pipe and the inner pipe of the body are assembled can be effectively prevented, and the inner pipe and the outer pipe of the body are assembled to prevent the axial loosening phenomenon generated after the inner pipe and the outer pipe of the body are assembled through the contact of the elastic sheet and the strip-shaped hollow groove along the axial groove wall of the inner pipe of the body and far away from the limiting block.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
Fig. 1 is a first perspective structural view schematically illustrating a body tube assembly structure provided in embodiment 1 of the present invention;
fig. 2 is a second perspective structural view schematically illustrating a body tube fitting assembly structure provided in embodiment 1 of the present invention;
fig. 3 is a first perspective structural view of a body inner tube of the body tube fitting assembly structure according to embodiment 1 of the present invention;
fig. 4 is a second perspective structural view of the inner tube of the body tube assembly structure according to embodiment 1 of the present invention;
fig. 5 is a first perspective structural view of a body outer tube of the body tube fitting assembly structure according to embodiment 1 of the present invention;
fig. 6 is a second perspective structural view schematically illustrating a body outer tube of the body tube assembly structure according to embodiment 1 of the present invention
Fig. 7 is a schematic view illustrating a state of the engagement between the elastic piece and the strip-shaped hollow groove of the body tube assembly structure according to embodiment 1 of the present invention.
In the figure: the device comprises a device body inner tube 1, a limiting block 11, a strip-shaped hollow groove 12, a device body outer tube 2, an elastic sheet 21, a bayonet 22, a through hole 23 and a hollow cavity 24.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Example 1:
referring to fig. 1 to 7, the present embodiment provides a body tube assembly structure, including: the device comprises a device body inner tube 1 and a device body outer tube 2 suitable for being sleeved on the outer side of the device body inner tube 1; wherein the pipe wall of the inner pipe 1 of the transformer body is provided with at least one strip-shaped hollow groove 12; the side wall of one end of the inner tube 1 of the device body is provided with at least one convex limiting block 11; the limiting block 11 is formed by extending the end part of the inner tube 1 of the body along the direction parallel to the axial line of the inner tube 1 of the body; the outer tube 2 of the body is provided with a hollow cavity 24 which penetrates along the axial direction of the outer tube; at least one through hole 23 communicated with the hollow cavity 24 is formed in the side wall of the outer tube 2 of the device body, and an elastic sheet 21 protruding towards the hollow cavity 24 is arranged at each through hole 23; a bayonet 22 suitable for being in clamping fit with at least one limiting block 11 in a one-to-one correspondence manner is arranged at the edge of one axial end of the outer tube 2 of the device body; when the outer tube 2 of the device body is sleeved outside the inner tube 1 of the device body, the bayonet 22 is clamped with the limiting block 11; the elastic sheet 21 is embedded into the strip-shaped hollow groove 12; the elastic sheet 21 is abutted with the strip-shaped hollow-out groove 12 along the axial direction of the inner tube 1 of the body and far away from the groove wall of the limiting block 11.
Specifically, in the process of sleeving and assembling the outer body tube 2 and the inner body tube 1, the outer body tube 2 is sleeved with the inner body tube 1 from one side end of the inner body tube 1 far away from the limiting block 11, that is, the bayonet 22 on the outer body tube 2 contacts the limiting block 11 on the inner body tube 1 when the assembly of the outer body tube and the inner body tube is nearly completed. For such an assembly situation, the elastic sheet 21 of the present embodiment is preferably disposed at a position close to one end of the outer body tube 2 away from the buckle, so that in the process of sleeving the outer body tube 2 and the inner body tube 1, when the outer body tube 2 and the inner body tube 1 are close to the assembly completion, the elastic sheet 21 will contact with the inner body tube 1, that is, in the process of assembling the two, the contact surface between the elastic sheet 21 and the inner body tube 1 can be effectively reduced, thereby reducing the resistance to the assembly process due to the arrangement of the elastic sheet 21. It should be noted that although the elastic piece 21 in the present embodiment still generates a part of resistance during the assembly of the body inner tube 1 and the body outer tube 2, the resistance is small because when the two are assembled, the elastic piece 21 can be deformed and retracted into the through hole 23 formed in the body outer tube 2, so that the contact resistance between the elastic piece 21 and the body inner tube 1 is reduced, and the elastic piece 21 in the present embodiment is an elastic structure body, has a natural deformation capability, and generates a resistance much smaller than that of a non-elastic structure.
For example, in an optional implementation case, the inner tube 1 and the limiting block 11 of the body of the present embodiment are made of medical polymer plastic, and the outer tube 2 and the elastic sheet 21 of the body are made of metal. Under the cooperation of the materials, the elastic sheet 21 has good deformability to realize the sleeving and matching process between the outer tube 2 and the inner tube 1.
In detail, referring to the attached drawings, a strip-shaped hollow groove 12 is formed in the inner tube 1 of the body, and a limit block 11 is arranged on the inner tube 1 of the body; and a bayonet 22 suitable for being clamped and matched with the limiting block 11 is arranged on the outer tube 2 of the device body, and an elastic sheet 21 suitable for being embedded into the strip-shaped hollow groove 12 is arranged on the side wall of the outer tube 2 of the device body. Such a structure is relatively more simplified and it has been possible to satisfy the structural stability after the body outer tube 2 is assembled with the body inner tube 1.
In detail, the structure that the elastic sheet 21 abuts against the groove wall of the strip-shaped hollow groove 12 along the axial direction of the inner tube 1 of the body and away from the limiting block 11 in the embodiment is specifically realized by the following method:
the through hole 23 in this embodiment is of a rectangular structure; one side end of the elastic sheet 21 along the axial direction of the outer tube 2 of the body is connected with the inner side wall of the opening to form a fixed end, and the other three side ends of the elastic sheet 21 are free ends. It should be noted that the free end of the elastic sheet 21 opposite to the fixed end is located on the opposite side of the opening side of the bayonet 22; and when the outer tube 2 and the inner tube 1 are assembled in place, the free end of the elastic sheet 21 opposite to the fixed end is suitable for abutting against the groove wall at one axial end in the strip-shaped hollow groove 12. Under such a structure, when the outer tube 2 is sleeved outside the inner tube 1, the elastic sheet 21 is finally embedded into the bar-shaped hollow groove 12 on the inner tube 1, which is far away from the limiting block 11, and after the elastic sheet 21 is embedded into the bar-shaped hollow groove 12, the elastic sheet 21 deforms to recover the original shape, so that one free end of the elastic sheet 21 can be abutted against the groove wall of the bar-shaped hollow groove 12.
In conclusion, the body pipe fitting assembly structure of the embodiment adopts the matching of the limiting block 11 and the bayonet 22, so that the radial angle rotation phenomenon generated after the body outer pipe 2 and the body inner pipe 1 are assembled can be effectively prevented; and the elastic sheet 21 is abutted with the strip-shaped hollow groove 12 along the axial groove wall of the inner tube 1 of the body and far away from the limit block 11, so that the axial loosening phenomenon between the inner tube 1 of the body and the outer tube 2 of the body is prevented after the inner tube 1 of the body and the outer tube 2 of the body are assembled. Therefore, the stability and firmness of the assembly of the outer tube 2 and the inner tube 1 of the body after the assembly in place are effectively ensured through the limitation of two dimensions of the radial dimension and the axial dimension.
Example 2:
on the basis of the body tube assembly structure of embodiment 1, the body tube assembly structure provided in this embodiment is substantially the same as that of embodiment 1, except that the structure of the spring piece 21 of the body tube assembly structure of this embodiment is different from that of the embodiment.
Specifically, the through hole 23 has a rectangular structure; the elastic sheet 21 is an arc-shaped structural body protruding towards the hollow cavity 24; two side ends of the elastic sheet 21 along the axial direction of the outer tube 2 of the body are connected with the inner side wall of the opening to form a fixed end, and the other two side ends of the elastic sheet 21 are free ends; when the outer tube 2 and the inner tube 1 are assembled in place, the side wall surface of the elastic sheet 21 facing the hollow inner cavity of the outer tube 2 is abutted against the axial end wall of the strip-shaped hollow groove 12; and the end face, which is deviated from the opening, of the side wall face of the hollow inner cavity of the outer tube 2 of the device body, which is propped against the groove wall of the strip-shaped hollow groove 12, of the elastic sheet 21.
That is to say, compared with the elastic piece 21 of embodiment 1, the elastic piece 21 of this embodiment has only two side ends as free ends, but the process of matching the elastic piece 21 and the strip-shaped hollow 12 is the same as the elastic piece 21 of this embodiment, and detailed description thereof is omitted. Namely, the phenomenon of loosening of the axial dimension between the outer tube 2 of the body and the inner tube 1 of the body after being assembled in place can be effectively prevented as long as the condition that the elastic sheet 21 is abutted against the groove wall of the strip-shaped hollow-out groove 12 along the axial direction of the inner tube 1 of the body and far away from the limiting block 11 is met.
Example 3:
on the basis of the body tube fitting assembly structure of embodiment 1 or embodiment 2, the present embodiment provides an intraluminal cutting stapler including: the body pipe fitting structure of embodiment 1 or embodiment 2.
The above embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present invention, unless otherwise expressly stated or limited, the first feature may be present on or under the second feature in direct contact with the first and second feature, or may be present in the first and second feature not in direct contact but in contact with another feature between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (8)
1. A body tube assembly structure, comprising: the device body inner pipe and the device body outer pipe are suitable for being sleeved on the outer side of the device body inner pipe; wherein
The pipe wall of the inner pipe of the transformer body is provided with at least one strip-shaped hollow groove; the side wall of one end of the inner pipe of the device body is provided with at least one convex limiting block; the limiting block is formed by extending the end part of the inner tube of the body along the axial direction parallel to the inner tube of the body;
the outer tube of the body is provided with a hollow cavity which is communicated along the axial direction of the outer tube; at least one through hole communicated with the hollow cavity is formed in the side wall of the outer tube of the device body, and an elastic sheet protruding towards the hollow cavity is arranged at each through hole; a bayonet suitable for being in clamping fit with at least one limiting block in a one-to-one correspondence manner is arranged on the edge of one axial end of the outer pipe of the device body;
when the outer tube of the body is sleeved outside the inner tube of the body, the bayonet is clamped with the limiting block, and the elastic sheet is embedded into the strip-shaped hollow groove; the elastic sheet is connected with the strip-shaped hollow groove along the axial direction of the inner tube of the body and the groove wall far away from the limiting block.
2. The body pipe fitting assembly structure according to claim 1, wherein the body inner pipe and the stopper are made of medical polymer plastic, and
the outer tube of the body and the spring plate are made of metal materials.
3. The pipe fitting assembly structure of the transformer body according to claim 1, wherein a strip-shaped hollow groove is formed in the inner pipe of the transformer body, and a limit block is arranged on the inner pipe of the transformer body; and
the outer tube of the device body is provided with a bayonet suitable for being clamped and matched with the limiting block, and the side wall of the outer tube of the device body is provided with an elastic sheet suitable for being embedded into the strip-shaped hollow groove.
4. The fitting structure of claim 1, wherein the resilient tab is disposed near an end of the outer tube of the body distal from the bayonet.
5. The assembling structure of the tube of the transformer body according to any one of claims 1 to 4, wherein the through hole has a rectangular structure; and
one side end of the elastic sheet along the axial direction of the outer tube of the body is connected with the inner side wall of the opening to form a fixed end, and the other three side ends of the elastic sheet are free ends.
6. The body tube fitting assembly structure according to claim 5, wherein a free end of the spring plate opposite to the fixed end is located on the opposite side of the opening side of the bayonet; and
when the outer tube and the inner tube are assembled in place, the free end of the elastic sheet opposite to the fixed end is suitable for abutting against the wall of the axial end in the strip-shaped hollow groove.
7. The assembling structure of the tube of the transformer body according to any one of claims 1 to 4, wherein the through hole has a rectangular structure; and
the elastic sheet is an arc-shaped structural body protruding towards the hollow cavity; two side ends of the elastic sheet along the axial direction of the outer tube of the body are connected with the inner side wall of the opening to form a fixed end, and the other two side ends of the elastic sheet are free ends;
when the outer tube and the inner tube of the transformer body are assembled in place, the side wall surface of the elastic sheet facing the hollow inner cavity of the outer tube of the transformer body is abutted with the wall of the axial end in the strip-shaped hollow groove; and the end surface of the elastic sheet, which is propped against the groove wall of the strip-shaped hollow groove, faces the side wall surface of the hollow inner cavity of the outer pipe of the device body and deviates from the opening.
8. An endoluminal cutting stapler, comprising: the body assembling structure according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121215951.2U CN215605945U (en) | 2021-06-01 | 2021-06-01 | Body pipe fitting assembly structure and intracavity cutting anastomat using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121215951.2U CN215605945U (en) | 2021-06-01 | 2021-06-01 | Body pipe fitting assembly structure and intracavity cutting anastomat using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215605945U true CN215605945U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121215951.2U Active CN215605945U (en) | 2021-06-01 | 2021-06-01 | Body pipe fitting assembly structure and intracavity cutting anastomat using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215605945U (en) |
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2021
- 2021-06-01 CN CN202121215951.2U patent/CN215605945U/en active Active
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