CN211187402U - Blood vessel connecting device - Google Patents
Blood vessel connecting device Download PDFInfo
- Publication number
- CN211187402U CN211187402U CN201921577277.5U CN201921577277U CN211187402U CN 211187402 U CN211187402 U CN 211187402U CN 201921577277 U CN201921577277 U CN 201921577277U CN 211187402 U CN211187402 U CN 211187402U
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- pipe section
- blood vessel
- flexible pipe
- rigid
- support
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Abstract
The utility model discloses a blood vessel connecting device, which comprises an inner support and an outer support; the inner support is of an elastic hollow tubular structure, can be compressed and elongated to move in a blood vessel and can be expanded into a tube body in the blood vessel; the outer support is used for being sleeved outside a blood vessel, and the inner support is tightly attached to the inner wall of the outer support after being unfolded so as to clamp the blood vessel between the inner support and the outer support; the outer support comprises a rigid pipe section I, a flexible pipe section and a rigid pipe section II, the flexible pipe section is of a flexible seamless pipe body structure, and the rigid pipe section I and the rigid pipe section II are of rigid seamless pipe body structures and are coaxially connected through the flexible pipe section. The utility model discloses make the user can control its inner support and outer support in step to conveniently connect the blood vessel, simplify the operation process, shorten the operation time.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a blood vessel connecting device.
Background
When the aorta and peripheral blood vessel surgery is performed, blood vessels are usually cut off and then connected, the traditional method is a needle and thread suture anastomosis method, but the operation is complicated and time-consuming, the injury of the blood vessel intima is large, and the suture line often causes the deposition of blood platelets, so that serious complications such as thrombosis and the like are caused. In order to replace needle and thread sewing, a clamping type connection method exists in the field.
Patent CN 108903984 a discloses a clamping type blood vessel connection device, which includes an inner stent and an outer stent, wherein the inner stent is an elastic hollow tubular structure, the inner stent can be compressed and elongated to move in the blood vessel and can be expanded into a tube body in the blood vessel, the outer stent is used for being sleeved outside the blood vessel, and the inner stent is tightly attached to the inner wall of the outer stent after being expanded to clamp the blood vessel between the inner stent and the outer stent.
However, the clamping type blood vessel connecting device has inconvenience in use in practical application, and prolongs the operation time; the reason is that, because the outer stent is of a non-deformable rigid seamless tube structure (in order to prevent bleeding after blood vessel connection), in the absence of a special operating tool, the inner stent and the outer stent need to be respectively acted by applying force through vascular clamps or hands of a doctor to act (i.e. move or deform), cannot be operated at the same time, but are limited by the structure of the tubular part, and in order to eliminate interference between the two stents, the stress sites of the two stents need to be frequently changed, so that the operation time is prolonged, and the labor consumption is increased.
Therefore, there is a need for an improved vascular connection device, which allows the inner stent and the outer stent to be simultaneously manipulated, so as to conveniently connect the blood vessels, simplify the procedure, and shorten the operation time.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a not enough to prior art exists, the utility model aims to provide a blood vessel connecting device for the user can control its inner support and outer support in step, in order conveniently to be connected the blood vessel, simplifies the operation process, shortens the operation time.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a vascular connection device comprising an inner stent and an outer stent; the inner support is of an elastic hollow tubular structure, can be compressed and elongated to move in a blood vessel and can be expanded into a tube body in the blood vessel; the outer support is used for being sleeved outside a blood vessel, and the inner support is tightly attached to the inner wall of the outer support after being unfolded so as to clamp the blood vessel between the inner support and the outer support; the outer support comprises a rigid pipe section I, a flexible pipe section and a rigid pipe section II, the flexible pipe section is of a flexible seamless pipe body structure, and the rigid pipe section I and the rigid pipe section II are of rigid seamless pipe body structures and are coaxially connected through the flexible pipe section.
By adopting the technical scheme, the utility model discloses following beneficial technological effect has:
the blood vessel connecting device of the utility model is formed by connecting the rigid pipe section I, the flexible pipe section and the rigid pipe section II which are connected in sequence through structurally improving the outer bracket, when in use, the inner bracket can be firstly placed in the outer bracket, the flexible pipe section and the inner support can be simultaneously compressed by applying radial acting force to the flexible pipe section, and the pipe diameters of the rigid pipe section I and the rigid pipe section II are kept unchanged, a gap for the broken blood vessel to extend into is temporarily formed between the inner support and the rigid pipe section I and the rigid pipe section II, when the blood vessel is stretched into a proper position, the acting force on the flexible pipe section is released, the flexible pipe section and the inner support are gradually restored to the original state, the inner support gradually props up the blood vessel in the restoration process and enables the blood vessel to cling to the inner wall of the outer support, under the external pressure of the inner stent and the blocking action of the outer stent, the blood vessel is clamped between the inner stent and the outer stent; compared with the prior art, the improvement of the structure enables the inner support and the outer support to be controlled simultaneously, the blood vessel can be conveniently connected, the operation process is simplified, the operation time is shortened, and the structure has higher practical value.
The utility model discloses further set up to: the flexible pipe section is made of silica gel, and two ends of the flexible pipe section are connected with the rigid pipe section I and the rigid pipe section II respectively in a hot melting connection mode.
The utility model discloses further set up to: the length of the flexible pipe section is 8.0mm-15.0 mm.
The utility model discloses further set up to: the inner support is made of alloy materials with shape memory effect, and the elastic hollow tubular structure is a silk-mesh woven tube body.
The utility model discloses further set up to: the surface of the inner support is coated with a coating, and the coating is a polytetrafluoroethylene layer, an expanded polytetrafluoroethylene layer or a polyurethane layer.
The utility model discloses further set up to: the inner support is provided with a developing indicating mark.
The utility model discloses further set up to: the surface of the outer support is coated with a film coating layer, and the part of the film coating layer corresponding to the flexible pipe section is a corrugated film section which can adapt to the deformation of the flexible pipe section.
The utility model discloses further set up to: the film coating layer is made of nylon, terylene or polytetrafluoroethylene.
Drawings
FIG. 1 is a sectional view of the structure of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 is a front view of the inner frame of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 3: the embodiment provides a vascular connection device, which comprises an inner stent 1 and an outer stent 2; the inner support 1 is an elastic hollow tubular structure, and the inner support 1 can be compressed and elongated to move in a blood vessel and can be expanded into a tube body in the blood vessel; the outer stent 2 is used for being sleeved outside a blood vessel, and the inner stent 1 is tightly attached to the inner wall of the outer stent 2 after being unfolded so as to clamp the blood vessel between the inner stent 1 and the outer stent 2;
the blood vessel connection device provided by the embodiment is improved on the basis of the clamping type blood vessel connection device disclosed in patent CN 108903984 a, so that the principle and partial structure of the blood vessel connection device are consistent with those of the above devices, for example, the structure of the inner stent 1 can be the same as those of the above devices, that is, the inner stent 1 is made of an alloy material with a shape memory effect, the elastic hollow tubular structure is a silk-mesh woven tube, the surface of the inner stent 1 is coated with a coating (not shown in the figure), the coating can be a polytetrafluoroethylene layer, an expanded polytetrafluoroethylene layer or a polyurethane layer, the inner stent 1 can be provided with a developing indicator 1a, the obtained technical effects are also described in the above patent specification, and the same parts of the two are not repeated.
The improvement of the blood vessel connecting device of the embodiment is mainly on the structure of the external stent 2, namely, the external stent 2 comprises a rigid pipe section I21, a flexible pipe section 22 and a rigid pipe section II 23, the flexible pipe section 22 is a flexible seamless pipe body structure, and the rigid pipe section I21 and the rigid pipe section II 23 are both rigid seamless pipe body structures and are coaxially connected through the flexible pipe section 22. The rigid pipe section I21 and the rigid pipe section II 23 can be made of medical alloy materials and can be circular pipe structures with the same length; the flexible pipe section 22 can be made of silica gel, at the moment, two ends of the flexible pipe section 22 are respectively connected with the rigid pipe section I21 and the rigid pipe section II 23 in a hot melting connection mode, and no gap is formed at the connection part; the length of the flexible tube segment 22 may be 8.0mm-15.0mm to accommodate manipulation using vascular clamps or manual manipulation; the flexible tube 22 of this construction is axially elongated by a length and the opposite sides are also radially inwardly displaced, i.e. from a circular to an oval shape, and returns to a circular shape when in a free state.
The blood vessel connecting device of the embodiment is formed by connecting an outer support 2 through structural improvement on the outer support 2, so that the outer support 2 is formed by connecting a rigid pipe section I21, a flexible pipe section 22 and a rigid pipe section II 23 which are connected in sequence, when the device is used, an inner support 1 can be placed in the outer support 2, the flexible pipe section 22 and the inner support 1 can be simultaneously compressed by applying radial acting force on the flexible pipe section 22, a gap for a broken blood vessel to stretch into is temporarily formed between the inner support 1 and the rigid pipe section I21 and the rigid pipe section II 23 because the pipe diameters of the rigid pipe section I21 and the rigid pipe section II 23 are kept unchanged, when a blood vessel stretches into a proper position, the acting force on the flexible pipe section 22 is released, the flexible pipe section 22 and the inner support 1 gradually restore to the original state, the inner support 1 gradually props up the blood vessel and enables the blood vessel to cling to the inner wall of the outer support 2 in the restoration process, under the external pressure of, the blood vessel is clamped between the inner stent 1 and the outer stent 2; compared with the prior art, the improvement of the structure enables the inner support 1 and the outer support 2 to be controlled simultaneously, the blood vessel can be conveniently connected, the operation process is simplified, the operation time is shortened, and the structure has higher practical value.
The embodiment is further configured as follows: the surface (including outer surface and internal surface) of outer support 2 is wrapped with tectorial membrane layer 3, the position that flexible pipe section 22 is corresponded to in tectorial membrane layer 3 is the ripple membrane section 3a that can adapt to flexible pipe section 22 deformation. The film coating layer 3 can prevent the outer bracket 2 from directly contacting with the blood vessel, thereby reducing the abrasion to the blood vessel; the corrugated film section 3a on the film coating layer 3 can adapt to the deformation of the flexible pipe section 22 and can stretch together with the flexible pipe section 22, namely, the corrugated film section 3a can stretch when the flexible pipe section 22 is stretched, and the corrugated film section 3a also compresses together when the flexible pipe section 22 is compressed; the material of the coating layer 3 can be the same as that of the existing artificial blood vessel, for example, the coating layer is made of nylon, terylene or polytetrafluoroethylene, so as to avoid the repulsion with the blood vessel.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A vascular connection device comprising an inner stent and an outer stent; the inner support is of an elastic hollow tubular structure, can be compressed and elongated to move in a blood vessel and can be expanded into a tube body in the blood vessel; the outer support is used for being sleeved outside a blood vessel, and the inner support is tightly attached to the inner wall of the outer support after being unfolded so as to clamp the blood vessel between the inner support and the outer support; the method is characterized in that:
the outer support comprises a rigid pipe section I, a flexible pipe section and a rigid pipe section II, the flexible pipe section is of a flexible seamless pipe body structure, and the rigid pipe section I and the rigid pipe section II are of rigid seamless pipe body structures and are coaxially connected through the flexible pipe section.
2. A vascular connection device as in claim 1, wherein: the flexible pipe section is made of silica gel, and two ends of the flexible pipe section are connected with the rigid pipe section I and the rigid pipe section II respectively in a hot melting connection mode.
3. A vascular connection device as in claim 1, wherein: the length of the flexible pipe section is 8.0mm-15.0 mm.
4. A vascular connection device as in claim 1, wherein: the inner support is made of alloy materials with shape memory effect, and the elastic hollow tubular structure is a silk-mesh woven tube body.
5. A vascular connection device as in claim 1, wherein: the surface of the inner support is coated with a coating, and the coating is a polytetrafluoroethylene layer, an expanded polytetrafluoroethylene layer or a polyurethane layer.
6. A vascular connection device as in claim 1, wherein: the inner support is provided with a developing indicating mark.
7. A vascular connection device as claimed in any of claims 1 to 6, wherein: the surface of the outer support is coated with a film coating layer, and the part of the film coating layer corresponding to the flexible pipe section is a corrugated film section which can adapt to the deformation of the flexible pipe section.
8. A vascular connection device as in claim 7, wherein: the film coating layer is made of nylon, terylene or polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921577277.5U CN211187402U (en) | 2019-09-20 | 2019-09-20 | Blood vessel connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921577277.5U CN211187402U (en) | 2019-09-20 | 2019-09-20 | Blood vessel connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211187402U true CN211187402U (en) | 2020-08-07 |
Family
ID=71860121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921577277.5U Expired - Fee Related CN211187402U (en) | 2019-09-20 | 2019-09-20 | Blood vessel connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211187402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113558696A (en) * | 2021-07-08 | 2021-10-29 | 河南省人民医院 | Blood vessel anastomat for kidney transplantation operation |
-
2019
- 2019-09-20 CN CN201921577277.5U patent/CN211187402U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113558696A (en) * | 2021-07-08 | 2021-10-29 | 河南省人民医院 | Blood vessel anastomat for kidney transplantation operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200807 Termination date: 20210920 |
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| CF01 | Termination of patent right due to non-payment of annual fee |