CN113413255B - Blood vessel supporting rubber stent - Google Patents
Blood vessel supporting rubber stent Download PDFInfo
- Publication number
- CN113413255B CN113413255B CN202110973049.5A CN202110973049A CN113413255B CN 113413255 B CN113413255 B CN 113413255B CN 202110973049 A CN202110973049 A CN 202110973049A CN 113413255 B CN113413255 B CN 113413255B
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- Prior art keywords
- elastic ring
- elastic
- ring
- strip
- blood vessel
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
Abstract
The invention relates to the field of medical equipment, in particular to a blood vessel supporting rubber stent which comprises a first elastic part and a second elastic part, wherein the first elastic part comprises a first elastic ring, a second elastic ring and a first elastic strip, and the first elastic ring rotates along a first direction; the middle part of the first elastic strip is sunken inwards, the left end and the right end are respectively connected with the first elastic ring and the second elastic ring, and the left end is positioned on the front side of the right end along the first direction; the second elastic piece comprises a third elastic ring, a fourth elastic ring and a second elastic strip, and the diameter of the third elastic ring is smaller than that of the fourth elastic ring and that of the second elastic ring; the middle part of the second elastic strip is sunken inwards, the left end and the right end of the second elastic strip are respectively connected with the third elastic ring and the fourth elastic ring, and the left end of the second elastic strip is positioned at the rear side of the right end along the first direction; the third elastic ring is connected with the second elastic ring and is separated under the action of external force; the third elastic ring is connected with the second elastic ring to increase the diameter, and the diameter of the fourth elastic ring is reduced to facilitate the access to the blood vessel.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a blood vessel supporting rubber stent.
Background
The broken blood vessel needs to be sutured, but the front wall and the rear wall of the blood vessel are easy to be adhered together due to the thin wall of the blood vessel, so that the suturing is difficult, the needle pitch of the non-full suture is difficult to control, and the postoperative blood leakage happens. The artificial blood vessel anastomosis method is adopted in the prior art, the fracture of a blood vessel is propped open by selecting the support piece with a proper diameter so as to be convenient for suturing, the support piece with a small diameter is easy to enter the blood vessel, but the blood vessel is not propped open sufficiently, the support piece with a large diameter can fully prop open the blood vessel, but the blood vessel is not easy to enter the blood vessel, and therefore, a blood vessel supporting bracket which can easily enter the blood vessel and can fully prop open the blood vessel is needed.
Disclosure of Invention
The invention provides a blood vessel supporting rubber stent, which aims to solve the problem that a supporting part in the prior art is not easy to enter a blood vessel.
The invention relates to a blood vessel supporting rubber stent, which adopts the following technical scheme:
a blood vessel supporting rubber stent comprises a first elastic part, a second elastic part and a driving device, wherein the first elastic part comprises a first elastic ring, a second elastic ring and a first elastic strip, and the first elastic ring rotates along a first direction under the driving of the driving device; the second elastic ring is positioned on the right side of the first elastic ring and is coaxial with the first elastic ring; the first elastic strips are uniformly and spirally distributed along the circumferential direction of the first elastic ring, the middle parts of the first elastic strips are inwards recessed, two ends of each first elastic strip are respectively connected with the second elastic ring and the first elastic ring, and the left end of each first elastic strip is positioned on the front side of the right end along the first direction; the second elastic piece comprises a third elastic ring, a fourth elastic ring and a second elastic strip, the diameter of the third elastic ring is smaller than that of the fourth elastic ring and that of the second elastic ring, and the fourth elastic ring is positioned on the right side of the third elastic ring and is coaxial with the third elastic ring; the second elastic strips are uniformly and spirally distributed along the circumferential direction of the third elastic ring, the middle parts of the second elastic strips are inwards recessed, two ends of each second elastic strip are respectively connected with the third elastic ring and the fourth elastic ring, the left end of each second elastic strip is positioned on the rear side of the right end along the first direction, and the included angle between the tangent line of the left end of each second elastic strip and the plane where the third elastic ring is positioned is larger than the included angle between the tangent line of the right end of each first elastic strip and the plane where the second elastic ring is positioned; the third elastic ring is connected with the second elastic ring so that the third elastic ring and the second elastic ring synchronously rotate and move and are separated under the action of external force; after the third elastic ring is connected with the second elastic ring, the second elastic ring enables the diameter of the third elastic ring to be increased to be equal to that of the second elastic ring, and the second elastic strip deforms to enable the diameter of the fourth elastic ring to be smaller than the initial diameter of the fourth elastic ring.
Optionally, the first elastic ring, the second elastic ring, the third elastic ring and the fourth elastic ring are the same in structure and respectively comprise a plurality of telescopic rods and a plurality of connecting blocks, the telescopic rods are connected end to form a ring shape, every two adjacent telescopic rods are connected through one connecting block, two ends of each first elastic strip are respectively connected with one connecting block on the first elastic ring and one connecting block on the second elastic ring, and two ends of each second elastic strip are respectively connected with one connecting block on the third elastic ring and one connecting block on the fourth elastic ring; the telescopic rod comprises a connecting rod, a connecting sleeve and a spring, one end of the connecting rod is slidably arranged in one end of the connecting sleeve, the other end of the connecting rod is connected with one adjacent connecting block, and the other end of the connecting sleeve is connected with the other adjacent connecting block; the spring is arranged in the connecting sleeve and drives the connecting rod to extend out.
Optionally, the blood vessel supporting rubber stent further comprises a hemispherical head, and the hemispherical head is mounted at the right end of the second elastic part to guide the second elastic part to enter the blood vessel.
Optionally, a limiting post is arranged on the right side surface of the connecting block of the second elastic ring, a limiting hole is arranged on the left side surface of the third elastic ring, and the limiting post is mounted in the limiting hole and in frictional contact with the limiting hole, so that the third elastic ring synchronously rotates along with the second elastic ring and moves left and right; the connecting blocks on the second elastic ring correspond to the connecting blocks on the third elastic ring one by one, so that the diameter of the third elastic ring is increased to be the same as that of the second elastic ring after each limiting column is inserted into the corresponding limiting hole.
Optionally, the blood vessel supporting rubber support further comprises a housing and an installation disc, the driving device is a motor, the motor is installed in the housing, a motor shaft of the motor extends out of the housing, the installation disc is driven by the motor shaft to rotate, and the first elastic ring is fixedly installed on the installation disc; the shell is provided with a start-stop button for controlling the start and stop of the motor.
The invention has the beneficial effects that: after the second elastic ring and the third elastic ring of the blood vessel supporting rubber stent are connected, the diameter of the fourth elastic ring is reduced, so that the blood vessel can be more easily entered; the first elastic strip and the second elastic strip are deformed and the second elastic ring and the third elastic ring are caused to contract through the rotation of the first elastic ring and the rotation friction resistance of the fourth elastic ring and the inner wall of the blood vessel, so that the fourth elastic ring expands and enlarges in the blood vessel, and the third elastic ring is easier to enter the blood vessel while the blood vessel is opened; after first elastic component and second elastic component break away from, the second elastic component resumes deformation, and third elastic ring and fourth elastic ring resume initial diameter size and strut the blood vessel, and the second bullet strip resumes deformation and makes third elastic ring and fourth elastic ring be close to each other and make in the third elastic ring further receives the blood vessel, avoids the second elastic component to break away from the blood vessel and makes the support more firm.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of an embodiment of the rubber stent for supporting blood vessels according to the present invention;
FIG. 2 is a schematic view showing a state in which a first elastic member and a second elastic member are mounted in an embodiment of the rubber stent for supporting a blood vessel of the present invention;
FIG. 3 is a schematic view showing a state of a first elastic member after the first elastic member and a second elastic member are mounted in an embodiment of the rubber stent for supporting a blood vessel according to the present invention;
FIG. 4 is a schematic view showing a state of a second elastic member after the first elastic member and the second elastic member are mounted in the embodiment of the rubber stent for supporting a blood vessel of the present invention;
FIG. 5 is a sectional view of a third elastic ring in an embodiment of the rubber stent for supporting blood vessels according to the present invention;
FIG. 6 is a schematic view showing a state where the first elastic member and the second elastic member are not connected in the embodiment of the blood vessel supporting rubber stent of the present invention;
FIG. 7 is a schematic view showing a state in which a first elastic member and a second elastic member enter a blood vessel in an embodiment of the blood vessel supporting rubber stent of the present invention;
FIG. 8 is a schematic view showing a state where the first elastic member and the second elastic member are activated by the driving means in the embodiment of the blood vessel supporting rubber stent of the present invention;
FIG. 9 is a schematic view showing a state of the second elastic member just after the first elastic member and the second elastic member are separated in the embodiment of the rubber stent for supporting a blood vessel of the present invention;
FIG. 10 is a schematic view showing the second elastic member recovering its deformed state after the first elastic member and the second elastic member are separated in the embodiment of the rubber stent for supporting blood vessels according to the present invention;
in the figure: 1. a housing; 2. a start-stop button; 3. a motor shaft; 4. mounting a disc; 5. a first elastic member; 6. a second elastic member; 7. a hemispherical head; 8. a first elastic ring; 901. a connecting rod; 902. connecting sleeves; 903. connecting blocks; 10. a first elastic strip; 11. a second elastic ring; 12. a third elastic ring; 13. a second elastic strip; 14. a fourth elastic ring; 15. a limiting column; 16. a limiting hole; 17. a spring; 18. a blood vessel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the blood vessel supporting rubber stent of the invention, as shown in fig. 1 to 10, comprises a first elastic member 5, a second elastic member 6 and a driving device,
the first elastic piece 5 comprises a first elastic ring 8, a second elastic ring 11 and a first elastic strip 10, and the first elastic ring 8 is driven by the driving device to rotate along a first direction; the second elastic ring 11 is positioned at the right side of the first elastic ring 8 and is coaxial with the first elastic ring 8; the plurality of first elastic strips 10 are uniformly and spirally distributed along the circumferential direction of the first elastic ring 8, the middle parts of the first elastic strips are inwards recessed, two ends of each first elastic strip 10 are respectively connected with the second elastic ring 11 and the first elastic ring 8, and the left end of each first elastic strip 10 is positioned on the front side of the right end along the first direction;
the second elastic part 6 comprises a third elastic ring 12, a fourth elastic ring 14 and a second elastic strip 13, the diameter of the third elastic ring 12 is smaller than that of the fourth elastic ring 14 and that of the second elastic ring 11, and the fourth elastic ring 14 is positioned on the right side of the third elastic ring 12 and is coaxial with the third elastic ring 12; the plurality of second elastic strips 13 are uniformly and spirally distributed along the circumferential direction of the third elastic ring 12, the middle parts of the second elastic strips are inwards recessed, two ends of each second elastic strip 13 are respectively connected with the third elastic ring 12 and the fourth elastic ring 14, the left end of each second elastic strip 13 is positioned on the rear side of the right end along the first direction, and the included angle between the tangent line of the left end of each second elastic strip 13 and the plane of the third elastic ring 12 is larger than the included angle between the tangent line of the right end of each first elastic strip 10 and the plane of the second elastic ring 11; the third elastic ring 12 is connected with the second elastic ring 11, so that the third elastic ring 12 and the second elastic ring 11 synchronously rotate and move and are separated under the action of external force; after the third elastic ring 12 is connected with the second elastic ring 11, the second elastic ring 11 increases the diameter of the third elastic ring 12 to be equal to that of the second elastic ring 11, and the second elastic strip 13 deforms to enable the diameter of the fourth elastic ring 14 to be smaller than the initial diameter of the fourth elastic ring;
when the elastic connecting piece is used, the third elastic ring 12 is in friction connection with the second elastic ring 11, the diameter of the third elastic ring 12 is increased, and the diameter of the fourth elastic ring 14 is reduced due to the fact that the middle portion of the second elastic strip 13 is sunken inwards and the right end of the second elastic strip is stretched along with the increase of the diameter of the third elastic ring 12. Inserting a fourth elastic ring 14 into a fracture of a blood vessel 18, starting a driving device to enable a first elastic ring 8 to rotate along a first direction, and driving a second elastic ring 11 and a third elastic ring 12 to rotate around the first direction through a first elastic strip 10, wherein under the obstruction of the rotational friction between the fourth elastic ring 14 and the inner wall of the blood vessel 18, the spiral inclination angle of the first elastic strip 10 is increased, the distance between the second elastic ring 11 and the first elastic ring 8 is reduced, because the middle part of the first elastic strip 10 is inwards sunken, the second elastic ring 11 is inwards contracted under the pulling of the first elastic strip 10, and the spiral inclination angle of the second elastic strip 13 is reduced, the distance between the third elastic ring 12 and the fourth elastic ring 14 is increased, the fourth elastic ring 14 further enters the blood vessel 18, the second elastic strip 13 obstructs the synchronous contraction of the third elastic ring 12 along with the second elastic ring 11, and because the included angle between the tangent line of the left end of the second elastic strip 13 and the plane of the third elastic ring 12 is larger than the included angle between the tangent line of the right end of the tangent line of the first elastic ring 10 and the tangent line of the tangent plane of the second elastic strip 11 The force of the first elastic strip 10 pulling the second elastic ring 11 to contract inwards is greater than the force of the second elastic strip 13 hindering the inward contraction of the third elastic ring 12, so that the third elastic ring 12 contracts synchronously with the second elastic ring 11, the diameter of the fourth elastic ring 14 entering the blood vessel 18 is increased through the second elastic strip 13, and the third elastic ring 12 can enter the blood vessel 18 conveniently; manually pushing the first elastic member 5 and the second elastic member 6 until the third elastic ring 12 completely enters the blood vessel 18, stopping pushing and closing the driving device, stopping the rotation of the first elastic ring 8, rotating the second elastic ring 11 in the first direction under the action of the first elastic strip 10 recovering deformation and moving to the right to further push the third elastic ring 12 to enter the blood vessel 18, applying an external force to separate the second elastic ring 11 from the third elastic ring 12, and restoring the second elastic member 6 to an initial state in the blood vessel 18, wherein the second elastic strip 13 makes the third elastic ring 12 and the fourth elastic ring 14 approach each other when recovering deformation, the third elastic ring 12 needs to contract when recovering the initial state, the fourth elastic ring 14 needs to relax when recovering the initial state, and because the fourth elastic ring 14 is prevented by the tube wall of the blood vessel 18 due to the relaxation of the fourth elastic ring 14, the distance of the third elastic ring 12 moving to the right is greater than the distance of the fourth elastic ring 14 moving to the left, thereby advancing the third elastic loop 12 further into the blood vessel 18.
In this embodiment, the first elastic ring 8, the second elastic ring 11, the third elastic ring 12 and the fourth elastic ring 14 have the same structure and each include a plurality of telescopic rods and a connecting block 903, the telescopic rods are connected end to form a ring shape, every two adjacent telescopic rods are connected by one connecting block 903, two ends of each first elastic strip 10 are respectively connected with one connecting block 903 on the first elastic ring 8 and one connecting block 903 on the second elastic ring 11, and two ends of each second elastic strip 13 are respectively connected with one connecting block 903 on the third elastic ring 12 and one connecting block 903 on the fourth elastic ring 14; the telescopic rod comprises a connecting rod 901, a connecting sleeve 902 and a spring 17, one end of the connecting rod 901 is slidably arranged in one end of the connecting sleeve 902, the other end of the connecting rod 901 is connected with one adjacent connecting block 903, and the other end of the connecting sleeve 902 is connected with the other adjacent connecting block 903; spring 17 is mounted within connecting sleeve 902 and urges connecting rod 901 to extend.
In this embodiment, the blood vessel supporting rubber stent further comprises a hemispherical head 7, the hemispherical head 7 is installed at the right end of the second elastic member 6 to guide the second elastic member 6 into the blood vessel 18, and the hemispherical head 7 is made of a dissolvable material.
In this embodiment, a limiting post 15 is disposed on the right side surface of the connecting block 903 of the second elastic ring 11, a limiting hole 16 is disposed on the left side surface of the third elastic ring 12, and the limiting post 15 is mounted in the limiting hole 16 and frictionally contacts with the limiting hole 16, so that the third elastic ring 12 synchronously rotates and moves left and right along with the second elastic ring 11; the connecting blocks 903 on the second elastic ring 11 correspond to the connecting blocks 903 on the third elastic ring 12 one by one, so that the diameter of the third elastic ring 12 is increased to be the same as that of the second elastic ring 11 after each limiting column 15 is inserted into the corresponding limiting hole 16.
In this embodiment, the connecting rods 901, the connecting sleeves 902 and the connecting blocks 903 of the second elastic strip 13, the second elastic ring 12 and the fourth elastic ring 14 are all made of rubber materials.
In this embodiment, the blood vessel supporting rubber stent further comprises a shell 1 and an installation disc 4, wherein a driving device is a motor, the motor is installed in the shell 1, a motor shaft 3 of the motor extends out of the shell 1, the installation disc 4 is driven by the motor shaft 3 to rotate, and a first elastic ring 8 is fixedly installed on the installation disc 4; the shell 1 is provided with a start-stop button 2 for controlling the start and stop of the motor.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A blood vessel supporting rubber stent is characterized in that: the elastic device comprises a first elastic piece, a second elastic piece and a driving device, wherein the first elastic piece comprises a first elastic ring, a second elastic ring and a first elastic strip, and the first elastic ring rotates along a first direction under the driving of the driving device; the second elastic ring is positioned on the right side of the first elastic ring and is coaxial with the first elastic ring; the first elastic strips are uniformly and spirally distributed along the circumferential direction of the first elastic ring, the middle parts of the first elastic strips are inwards recessed, two ends of each first elastic strip are respectively connected with the second elastic ring and the first elastic ring, and the left end of each first elastic strip is positioned on the front side of the right end along the first direction; the second elastic piece comprises a third elastic ring, a fourth elastic ring and a second elastic strip, the diameter of the third elastic ring is smaller than that of the fourth elastic ring and that of the second elastic ring, and the fourth elastic ring is positioned on the right side of the third elastic ring and is coaxial with the third elastic ring; the second elastic strips are uniformly and spirally distributed along the circumferential direction of the third elastic ring, the middle parts of the second elastic strips are inwards recessed, two ends of each second elastic strip are respectively connected with the third elastic ring and the fourth elastic ring, the left end of each second elastic strip is positioned on the rear side of the right end along the first direction, and the included angle between the tangent line of the left end of each second elastic strip and the plane where the third elastic ring is positioned is larger than the included angle between the tangent line of the right end of each first elastic strip and the plane where the second elastic ring is positioned; the third elastic ring is connected with the second elastic ring so that the third elastic ring and the second elastic ring synchronously rotate and move and are separated under the action of external force; after the third elastic ring is connected with the second elastic ring, the second elastic ring enables the diameter of the third elastic ring to be increased to be equal to that of the second elastic ring, and the second elastic strip deforms to enable the diameter of the fourth elastic ring to be smaller than the initial diameter of the fourth elastic ring.
2. The blood vessel supporting rubber stent of claim 1, wherein: the first elastic ring, the second elastic ring, the third elastic ring and the fourth elastic ring are identical in structure and respectively comprise a plurality of telescopic rods and connecting blocks, the telescopic rods are connected end to form a ring shape, every two adjacent telescopic rods are connected through one connecting block, two ends of each first elastic strip are respectively connected with one connecting block on the first elastic ring and one connecting block on the second elastic ring, and two ends of each second elastic strip are respectively connected with one connecting block on the third elastic ring and one connecting block on the fourth elastic ring; the telescopic rod comprises a connecting rod, a connecting sleeve and a spring, one end of the connecting rod is slidably arranged in one end of the connecting sleeve, the other end of the connecting rod is connected with one adjacent connecting block, and the other end of the connecting sleeve is connected with the other adjacent connecting block; the spring is arranged in the connecting sleeve and drives the connecting rod to extend out.
3. The blood vessel supporting rubber stent of claim 1, wherein: still include the hemisphere head, hemisphere head installs in second elastic component right-hand member to guide second elastic component to get into the blood vessel.
4. The blood vessel supporting rubber stent of claim 2, wherein: a limiting post is arranged on the right side surface of the connecting block of the second elastic ring, a limiting hole is arranged on the left side surface of the third elastic ring, and the limiting post is arranged in the limiting hole and is in friction contact with the limiting hole, so that the third elastic ring synchronously rotates along with the second elastic ring and moves left and right; the connecting blocks on the second elastic ring correspond to the connecting blocks on the third elastic ring one by one, so that the diameter of the third elastic ring is increased to be the same as that of the second elastic ring after each limiting column is inserted into the corresponding limiting hole.
5. The blood vessel supporting rubber stent of claim 1, wherein: the motor is arranged in the shell, a motor shaft of the motor extends out of the shell, the mounting disc is driven by the motor shaft to rotate, and the first elastic ring is fixedly mounted on the mounting disc; the shell is provided with a start-stop button for controlling the start and stop of the motor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110973049.5A CN113413255B (en) | 2021-08-24 | 2021-08-24 | Blood vessel supporting rubber stent |
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| CN202110973049.5A CN113413255B (en) | 2021-08-24 | 2021-08-24 | Blood vessel supporting rubber stent |
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| CN113413255A CN113413255A (en) | 2021-09-21 |
| CN113413255B true CN113413255B (en) | 2021-11-16 |
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| CN117503220B (en) * | 2024-01-02 | 2024-04-02 | 北京华脉泰科医疗器械股份有限公司 | Vascular diameter-adjusting device |
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| CN113413255A (en) | 2021-09-21 |
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