CN119908788A - Foldable anastomosis component - Google Patents
Foldable anastomosis component Download PDFInfo
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- CN119908788A CN119908788A CN202510415730.6A CN202510415730A CN119908788A CN 119908788 A CN119908788 A CN 119908788A CN 202510415730 A CN202510415730 A CN 202510415730A CN 119908788 A CN119908788 A CN 119908788A
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- anastomotic
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Abstract
本发明提供一种可折叠吻合组件，吻合段被分为两组，每组中的各吻合段之间通过枢转机构将每个吻合段的首尾依次连接，两组吻合段之间通过枢转机构将每组吻合段的首尾连接，一对吻合环的相对面分别设置有位置对应的定位杆和定位孔，定位杆能够插入定位孔内，并且在定位孔内通过棘齿结构锁紧。根据本发明，整个折叠操作过程便捷，收缩状态的吻合环尺寸相比现有技术的可折叠吻合环能够进一步减小，还可以对吻合环的平面度和圆度进行校准，保证吻合环的针孔之间能够顺利插入完成吻合操作。
The present invention provides a foldable anastomosis assembly, wherein the anastomosis segments are divided into two groups, and the anastomosis segments in each group are connected in sequence at their ends by a pivot mechanism, and the two groups of anastomosis segments are connected at their ends by a pivot mechanism, and the opposite surfaces of a pair of anastomosis rings are respectively provided with positioning rods and positioning holes corresponding to their positions, and the positioning rods can be inserted into the positioning holes and locked in the positioning holes by a ratchet structure. According to the present invention, the entire folding operation process is convenient, and the size of the anastomosis ring in the contracted state can be further reduced compared to the foldable anastomosis ring of the prior art, and the flatness and roundness of the anastomosis ring can also be calibrated to ensure that the pinholes of the anastomosis ring can be smoothly inserted to complete the anastomosis operation.
Description
Technical Field
The invention relates to the field of vascular surgical medical instruments, in particular to a foldable anastomosis assembly.
Background
The vascular anastomosis assembly is generally used for open surgery, and an operator can clearly observe the local structure of the anastomosis assembly due to the large operation space of the open surgery, and can conveniently operate the anastomosis process. However, in minimally invasive surgery, particularly in endoscopic surgery, due to the large size of the anastomosis assembly, it is difficult to place and manipulate in a small space.
To address this problem, the prior art has proposed a foldable anastomosis assembly. U.S. patent No. 11413044B2 divides the anastomotic ring into segments, adjacent segments can be pivoted and folded in a direction consistent with the axial direction of the anastomotic ring, and U.S. patent No. 10045769B2 equally divides the anastomotic ring into segments, adjacent segments can be pivoted and folded in a direction consistent with the radial direction of the anastomotic ring. The sections of the anastomotic ring in the prior art can only pivot along one direction, so that the folding and shrinking size of the anastomotic ring is still larger, and the requirements of minimally invasive surgery application occasions cannot be completely met.
Disclosure of Invention
The present invention provides a foldable anastomosis assembly.
Specifically, the invention is realized by the following technical scheme:
The embodiment of the invention provides a foldable anastomosis assembly, which comprises a pair of two-way foldable anastomosis rings, wherein each anastomosis ring is provided with more than 4 even anastomosis sections, the anastomosis sections are divided into two groups, the head and the tail of each anastomosis section in each group are sequentially connected through a pivot mechanism so as to be suitable for being folded between each anastomosis section in each group along a first direction consistent with the axial direction of the anastomosis ring and between an axial shrinkage state and an axial expansion state, each anastomosis section is semi-annular in the axial expansion state, the head and the tail of each anastomosis section in each group are connected through a pivot mechanism so as to be suitable for being folded between the anastomosis sections in a second direction consistent with the radial direction of the anastomosis ring and between the radial shrinkage state and the radial expansion state, the anastomosis sections in each group are in a complete annular shape in the radial expansion state, and the opposite surfaces of the anastomosis rings are respectively provided with a positioning rod and a positioning hole corresponding to each other, and the positioning rod can be inserted into the positioning hole and locked through a ratchet structure in the positioning hole.
In some embodiments, a positioning and locking structure is provided between mating surfaces of adjacent anastomosis segments, the positioning and locking structure being configured to provide positioning and locking between adjacent anastomosis segments.
In some embodiments, the positioning and locking structure comprises a projection and a recess respectively provided on the mating surfaces of adjacent anastomosis segments, adapted to enable the projection to be inserted into the recess in said deployed state.
In some embodiments, the tops of the posts are formed with a tapered surface and the tops of the recesses are formed with an inverted tapered surface that mates with the tapered surface.
In some embodiments, at least one of the positioning rods or positioning holes is provided on each anastomotic segment.
In some embodiments, the length of the locating bar is set to be more than 1.5 times the depth of the corresponding locating hole.
In some embodiments, the positioning rod is formed with a smooth section and a ratchet section, the smooth section being located on a side of the ratchet section remote from the anastomotic ring.
In some embodiments, the pivot mechanism is a pivot pin.
In some embodiments, the pivot pin is disposed on one side of the mating surface of the anastomosis segment, and the stud or recess is disposed on the other side of the mating surface remote from the pivot pin.
According to the embodiment of the invention, the plurality of anastomotic segments of the anastomotic ring are divided into two groups, the anastomotic segments in each group can be folded along the first direction consistent with the axial direction of the anastomotic ring, the two groups of anastomotic segments can be folded along the second direction consistent with the radial direction of the anastomotic ring, after the anastomotic ring in a contracted state is placed in a narrow space through a narrow channel, only the two groups of anastomotic segments of the anastomotic ring are folded and unfolded along the second direction, and then the two groups of anastomotic segments are folded and unfolded along the first direction at the same time, so that the complete anastomotic ring can be formed. In addition, because the anastomotic ring needs to pivot along two directions, the problem that the flatness and roundness of the formed anastomotic ring are inaccurate exists, when two anastomotic rings are anastomosed, even if the alignment is inaccurate, the flatness and roundness of the anastomotic ring can be calibrated by utilizing the elastic deformation capability of the ratchet structure through arranging the positioning rod and the positioning hole with the ratchet structure, and the anastomotic ring pinholes can be smoothly inserted to complete the anastomotic operation.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic view of a contracted state of an anastomotic ring in a foldable anastomosis assembly according to an embodiment of the present invention from a first perspective;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a second perspective view of a contracted state of an anastomosis ring in a foldable anastomosis assembly in accordance with an embodiment of the present invention;
FIG. 4 is a partial cross-sectional view of a locating lever and locating hole in an embodiment of the present invention;
fig. 5 is a schematic view of an expanded state of a foldable anastomosis assembly in accordance with an embodiment of the present invention.
Reference numerals:
1, a first anastomosis section, 2, a second anastomosis section, 3, a first pivot pin, 4, a second pivot pin, 51, a positioning rod, 511, a ratchet section, 512, a smooth section, 52, a positioning hole, 61, a convex column and 62, and a concave hole.
Detailed Description
The invention will now be discussed with reference to several embodiments. It should be understood that these embodiments are discussed only in order to enable a person of ordinary skill in the art to better understand and thus practice the invention, and are not meant to imply any limitation on the scope of the invention.
As used herein, the terms "comprises," comprising, "and variations thereof are to be construed as open-ended terms that mean" including, but not limited to, "an embodiment, and" one embodiment "are to be interpreted to mean" at least one embodiment, "another embodiment" is to be interpreted to mean "at least one other embodiment," the terms "first," "second," and the like, may refer to different or the same objects, and the term "arrangement" is not limited to direct or indirect connections, nor to a particular manner of connection. Other explicit and implicit definitions are also possible below.
Some specific values or ranges of values may be referred to in the following description. It should be understood that these numerical values and numerical ranges are merely exemplary, which may be advantageous to put the inventive concept into practice. However, the description of these examples is not intended to limit the scope of the invention in any way. These values or ranges of values may be set otherwise, depending on the particular application and requirements.
As described above, the sections of the anastomotic ring in the prior art can only pivot along one direction, so that the size of the folded and contracted anastomotic ring is still larger, and the requirements of the application occasions of the minimally invasive surgery cannot be completely met. Embodiments of the present invention address, at least in part, the above-described problems with foldable anastomosis assemblies. The structure and working principle of a foldable anastomosis assembly according to an exemplary embodiment of the present invention will be described below with reference to fig. 1 to 5. As shown in fig. 1-5, the foldable anastomosis assembly of the present embodiment generally includes a pair of anastomosis rings each employing the bi-directional folding technique of the present embodiment, which are capable of achieving a size which is one-half smaller than the contracted state of the prior art foldable anastomosis ring. In the following, one of the anastomotic rings will be described in detail by way of example, and it will be understood by those skilled in the art that the same folding procedure is equally employed with the other anastomotic ring with which it is associated, the differences being limited only to the position and number of needles and holes, the position and number of positioning rods 51 and positioning holes 52, and the number of anastomotic segments.
In order to achieve bidirectional folding, the number of anastomotic segments forming the anastomotic ring must be even, the even number of anastomotic segments is divided into two groups, and the number and the size of the anastomotic segments between the two groups are completely corresponding, so that the anastomotic ring can be ensured to be freely folded between an axial contracted state and an axial expanded state. Illustratively, as shown in fig. 1-3, the number of anastomotic segments is 4. In other examples, the number of anastomotic segments may also be 6, 8, or more.
The first set of anastomotic segments is illustrated by the reference numerals in fig. 1 to 5, consisting of 2 first anastomotic segments 1, the first anastomotic segments 1 being connected end to end by a first pivot pin 3. In the same way, the second set of anastomotic segments consists of 2 second anastomotic segments 2, the 2 second anastomotic segments 2 being connected end to end by a second pivot pin 4. So arranged, in the condition of fig. 1 and 3, the first pivot pin 3 and the second pivot pin 4 are coaxially arranged so as to allow the simultaneous and smooth pivoting of the 2 first anastomosis segments 1 and 2 second anastomosis segments 2 in a first direction which coincides with the axial direction of the anastomosis ring.
One end of the first anastomotic segment 1 is connected with the other first anastomotic segment 1 through a first pivot pin 3, and the other end of the first anastomotic segment 1 is connected with one end of the second anastomotic segment 2 through a second pivot pin 4, so that the first anastomotic segment 1 and the second anastomotic segment 2 can pivot along a second direction. In the axially contracted state as shown in fig. 1 and 3, the two sets of anastomotic segments cannot be pivoted in the second direction due to the misalignment of the axes of the two second pivot pins 4. As shown in fig. 5, the pivoting between the two sets of anastomotic segments in the second direction is only possible if the anastomotic ring is at least in the axially expanded state, since the axial directions of the two second pivot pins 4 are completely coincident. Wherein the second direction is radially coincident with the anastomotic ring in the deployed state. It should be noted that the condition shown in fig. 1 and 3 is a limit condition of radial contraction, but not of axial contraction, and in fact, between the two first anastomotic segments 1, and between the two second anastomotic segments 2, the contraction may still continue towards a trend away from the semi-annular shape.
In one embodiment, in order to ensure that the position lock between the anastomotic segments is kept unchanged in the unfolded state, a positioning and locking structure needs to be arranged on the end matching surface of the anastomotic segment, a positioning and locking structure can be arranged on the matching surface of each anastomotic segment, a positioning and locking structure can be arranged on the matching surface of only part of the anastomotic segments, a positioning and locking structure can be arranged on the matching surface of one end of one anastomotic segment, and a positioning and locking structure can be arranged on the matching surface of two ends of one anastomotic segment. As shown in fig. 2, the positioning and locking structure is an engagement structure of a protruding column 61 and a concave hole 62, wherein the protruding column 61 is disposed on the engagement surface of one anastomotic segment, and the concave hole 62 is disposed on the engagement surface of the other anastomotic segment, so that when the anastomotic ring is in the unfolded state, that is, when the engagement surfaces of adjacent anastomotic segments are abutted against each other, the protruding column 61 can be embedded into the concave hole 62, and at least a limit locking effect parallel to the direction of the engagement surfaces can be provided between the mutually abutted engagement surfaces. The protruding columns 61 and the concave holes 62 are embedded in an interference fit mode, or the protruding columns 61 have elastic deformation capability, and are in a radially compressed state when embedded into the concave holes 62, so that the protruding columns 61 are embedded into the concave holes 62 and can provide locking effect for preventing the adjacent anastomotic segments from pivoting, and can provide locking force for keeping the anastomotic ring in an unfolded annular state.
In one embodiment, as shown in fig. 2, the top of the boss 61 is formed with a conical surface, the top of the concave hole 62 is formed with an inverted conical surface matched with the conical surface, and when the first pivot pin 3 or the second pivot pin 4 is loosened, the conical surface and the inverted conical surface can guide the matching surfaces of the adjacent anastomotic segments to be aligned and fit.
In one embodiment, the pivot pin is located on one side of the mating surface of the mating segment and the posts 61, recesses 62 are located on the other side of the mating surface, thereby maximizing the locking moment arm relative to the mating surface by the snap fit of the posts 61, recesses 62. Illustratively, as shown in FIG. 1, at one end mating surface of the first anastomosis segment, the second pivot pin 4 is on one side of the mating surface and the stud 61 or recess 62 is on the opposite side of the second pivot pin, and at the other end mating surface of the first anastomosis segment, the first pivot pin 3 is on one side of the mating surface and the stud 61 or recess 62 is on the opposite side of the first pivot pin.
According to the embodiment of the invention, the anastomotic ring is required to pivot along the first direction and the second direction, so that the problem of inaccurate flatness of the formed anastomotic ring exists, namely the planes of the anastomotic segments are not strictly in the same plane, and the problem of inaccurate roundness exists, namely the anastomotic ring is not strictly in a circular ring shape. To solve this problem, in the embodiment of the present invention, the positioning rod 51 is disposed on the anastomotic surface of one anastomotic ring, the positioning hole 52 is disposed at the corresponding position of the anastomotic surface of the other anastomotic ring, and when the anastomotic rings are anastomosed with each other, the positioning rod 51 can be inserted into the positioning hole 52, on one hand, the positioning rod 51 and the positioning hole 52 are disposed at positions closer to the periphery of the anastomotic ring than the needle, and when the end of the blood vessel is everted to cover the needle, the operator can rapidly align the positions of the needle and the hole by observing the positions of the positioning rod 51 and the positioning hole 52. On the other hand, more importantly, the positioning rod 51 and the positioning hole 52 are locked through the ratchet structure, so that when the positioning rod 51 and the positioning hole 52 cannot be aligned due to inaccurate flatness and roundness of the anastomotic ring, the positioning rod 51 is forcedly inserted into the positioning hole 52, and the ratchet structure has elastic deformation capability, so that the positioning rod 51 can provide a calibration function for the anastomotic ring after being inserted into the positioning hole 52, and the anastomotic ring can be corrected in flatness and roundness.
In one embodiment, at least one positioning rod 51 or positioning hole 52 is provided on each anastomotic segment, which ensures that the pivot connection points between all adjacent anastomotic segments of the anastomotic ring can be calibrated.
In one embodiment, as shown in fig. 4, the length of the positioning rod 51 is set to be more than 1.5 times of the depth of the corresponding positioning hole 52, so that the locking gear adjustment range between the positioning rod 51 and the positioning hole 52 realized by the ratchet structure is large enough to meet the conventional anastomosis requirement of the blood vessel wall thickness.
In one embodiment, the positioning rod 51 is formed with a smooth section 512 and a ratchet section 511, the smooth section 512 is located on one side of the ratchet section 511 away from the anastomotic ring, and a small friction force is provided between the smooth section 512 and the positioning hole 52 at the initial stage of inserting the positioning rod 51 into the positioning hole 52, so that the positioning rod 51 can be smoothly inserted into the positioning hole 52.
When the foldable anastomosis assembly provided by the embodiment of the invention is used, the anastomosis ring in the fully contracted state is firstly placed into a narrow operation space through a narrow channel, the first pivot pins 3 are adjusted to enable the matching surfaces between the first anastomosis sections 1 and between the second anastomosis sections 2 to be tightly attached, and the second pivot pins 4 are adjusted to enable the first anastomosis sections 1 and the second anastomosis sections 2 to be radially unfolded, so that the complete anastomosis ring is obtained. After the end of the blood vessel is turned outwards and hung on the needle of the anastomotic ring, the positioning rods 51 and the positioning holes 52 of a pair of anastomotic rings are aligned and inserted, and then the anastomotic surfaces of the anastomotic rings are further pressed, so that the anastomotic operation is completed.
Any references to directions and orientations in the description of the embodiments herein are for convenience only and should not be construed as limiting the scope of the invention in any way. The description of the preferred embodiments will refer to combinations of features, which may be present alone or in combination, and the invention is not particularly limited to the preferred embodiments. The scope of the invention is defined by the claims.
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, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510415730.6A CN119908788A (en) | 2025-04-03 | 2025-04-03 | Foldable anastomosis component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510415730.6A CN119908788A (en) | 2025-04-03 | 2025-04-03 | Foldable anastomosis component |
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| CN119908788A true CN119908788A (en) | 2025-05-02 |
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| CN202510415730.6A Pending CN119908788A (en) | 2025-04-03 | 2025-04-03 | Foldable anastomosis component |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7022131B1 (en) * | 1998-05-29 | 2006-04-04 | By-Pass Inc. | Methods and devices for vascular surgery |
| CN2906165Y (en) * | 2006-03-08 | 2007-05-30 | 胡忠 | Folding joint of bar |
| WO2012161627A1 (en) * | 2011-05-23 | 2012-11-29 | Prozeo Vascular Implant Ab | A device, a tool means, a kit and a method for anastomosis |
| CN102989146A (en) * | 2012-12-18 | 2013-03-27 | 黄虎生 | Foldable frame |
| US20150327853A1 (en) * | 2011-03-14 | 2015-11-19 | Ethicon Endo-Surgery, Inc. | Circular surgical staplers with foldable anvil assemblies |
| CN105898642A (en) * | 2016-06-02 | 2016-08-24 | 深圳市艾昕宸电子有限公司 | Novel portable wireless earphone |
| CN206507988U (en) * | 2016-11-12 | 2017-09-22 | 刘炼 | Aorta anastomosis device |
| CN109640839A (en) * | 2016-06-29 | 2019-04-16 | 挪威科技大学 | Surgical stapler, anvil for surgical stapler, and method of stapling tissue |
| CN215273045U (en) * | 2021-04-06 | 2021-12-24 | 华融科创生物科技（天津）有限公司 | Vascular anastomosis device |
| CN219821777U (en) * | 2023-05-22 | 2023-10-13 | 深圳天鹰兄弟无人机创新有限公司 | Unsmooth embedded horn folding assembly that big load plant protection unmanned aerial vehicle used |
| CN118383822A (en) * | 2024-06-28 | 2024-07-26 | 泓欣科创生物科技(北京)有限公司 | Vascular Anastomosis Components |
| US20240382076A1 (en) * | 2021-06-15 | 2024-11-21 | Konstantin Bob | Fold-down mechanism for an endoscope |
| CN119184774A (en) * | 2024-11-25 | 2024-12-27 | 华融科创生物科技（天津）有限公司 | Vascular anastomosis device capable of folding angle |
| CN119366991A (en) * | 2024-12-31 | 2025-01-28 | 华融科创生物科技（天津）有限公司 | Split anastomosis locking assembly |
-
2025
- 2025-04-03 CN CN202510415730.6A patent/CN119908788A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7022131B1 (en) * | 1998-05-29 | 2006-04-04 | By-Pass Inc. | Methods and devices for vascular surgery |
| CN2906165Y (en) * | 2006-03-08 | 2007-05-30 | 胡忠 | Folding joint of bar |
| US20150327853A1 (en) * | 2011-03-14 | 2015-11-19 | Ethicon Endo-Surgery, Inc. | Circular surgical staplers with foldable anvil assemblies |
| WO2012161627A1 (en) * | 2011-05-23 | 2012-11-29 | Prozeo Vascular Implant Ab | A device, a tool means, a kit and a method for anastomosis |
| CN102989146A (en) * | 2012-12-18 | 2013-03-27 | 黄虎生 | Foldable frame |
| CN105898642A (en) * | 2016-06-02 | 2016-08-24 | 深圳市艾昕宸电子有限公司 | Novel portable wireless earphone |
| US20200289121A1 (en) * | 2016-06-29 | 2020-09-17 | Norwegian University Of Science And Technology | Surgical stapler, anvil for a surgical stapler, and a method of stapling tissue |
| CN109640839A (en) * | 2016-06-29 | 2019-04-16 | 挪威科技大学 | Surgical stapler, anvil for surgical stapler, and method of stapling tissue |
| CN206507988U (en) * | 2016-11-12 | 2017-09-22 | 刘炼 | Aorta anastomosis device |
| CN215273045U (en) * | 2021-04-06 | 2021-12-24 | 华融科创生物科技（天津）有限公司 | Vascular anastomosis device |
| US20240382076A1 (en) * | 2021-06-15 | 2024-11-21 | Konstantin Bob | Fold-down mechanism for an endoscope |
| CN219821777U (en) * | 2023-05-22 | 2023-10-13 | 深圳天鹰兄弟无人机创新有限公司 | Unsmooth embedded horn folding assembly that big load plant protection unmanned aerial vehicle used |
| CN118383822A (en) * | 2024-06-28 | 2024-07-26 | 泓欣科创生物科技(北京)有限公司 | Vascular Anastomosis Components |
| CN119184774A (en) * | 2024-11-25 | 2024-12-27 | 华融科创生物科技（天津）有限公司 | Vascular anastomosis device capable of folding angle |
| CN119366991A (en) * | 2024-12-31 | 2025-01-28 | 华融科创生物科技（天津）有限公司 | Split anastomosis locking assembly |
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