CN116672026A - Great saphenous vein root closer - Google Patents
Great saphenous vein root closer Download PDFInfo
- Publication number
- CN116672026A CN116672026A CN202310900475.5A CN202310900475A CN116672026A CN 116672026 A CN116672026 A CN 116672026A CN 202310900475 A CN202310900475 A CN 202310900475A CN 116672026 A CN116672026 A CN 116672026A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- elastic pressing
- saphenous vein
- outer sleeve
- needle core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 210000003752 saphenous vein Anatomy 0.000 title claims abstract description 32
- 238000001125 extrusion Methods 0.000 claims description 8
- 239000003550 marker Substances 0.000 claims description 3
- 210000003462 vein Anatomy 0.000 description 18
- 238000002679 ablation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000011298 ablation treatment Methods 0.000 description 3
- 208000007536 Thrombosis Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 206010046996 Varicose vein Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 238000013532 laser treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007674 radiofrequency ablation Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a great saphenous vein root closer, which comprises a needle core (1) and an outer sleeve (2), wherein a movable closing sleeve (3) is arranged on the needle core (1), the outer sleeve (2) is arranged on the outer side of the closing sleeve (3), a stop block (4) positioned behind the closing sleeve (3) is arranged at the front part of the needle core (1), and the stop block (4) stops the closing sleeve (3) from moving backwards on the needle core (1); elastic pressing pieces (6) perpendicular to the axis of the closing sleeve are arranged at the front end and the rear end of the closing sleeve (3), when the closing sleeve (5) is positioned in the outer sleeve (2), the end parts of the elastic pressing pieces (6) face to the opposite side of the position where the closing sleeve (5) is positioned and are extruded and rubbed by the outer sleeve (2), and the elastic pressing pieces (6) rotate after being extruded by the outer sleeve (2) is lost; the invention can reliably close the root of the great saphenous vein and has the characteristics of convenient use and simple structure.
Description
Technical Field
The invention relates to the field of medical appliances, in particular to a great saphenous vein root closer.
Background
Along with the development of the times, the great saphenous vein operation is more and more minimally invasive, and from great saphenous vein laser treatment to microwave/radio frequency treatment, the thermal ablation treatment of the varicose vein has the advantages of small wound, less pain, timely activity, no fasting, short hospitalization time, attractive appearance, high patient satisfaction and the like, and the principle is intravenous intracavity thermal ablation treatment; the method of the operation is to puncture the great saphenous vein below the knee joint, insert a thermal ablation catheter to the 1.5-2cm position of the saphenous-femoral vein intersection area, and perform the thermal ablation treatment on the trunk of the great saphenous vein below the thermal ablation, wherein the occurrence rate of thrombus (EHIT) spreading from the residual end of the vein to the deep vein after the thermal ablation after laser ablation is 0-7.7%, the radio frequency ablation is 0-16%, and the occurrence rate of the intracavity thermal ablation EHIT is reported to be even as high as 27%; on the other hand, when the compression is incomplete after the thermal ablation operation or the serious reflux or the venous pressure is high at the proximal end of the vein, the great saphenous vein can be caused to recur; based on this, need the ligature utensil cooperation of a great saphenous vein root, reduce recurrence rate and great saphenous vein internal thrombus and spread to the risk of dark vein, current sacculus formula vascular closure need be put into the blood vessel in accuracy and expand the closure again, and the operation is comparatively complicated, has the not good problem of closure effect after the sacculus laminating is uneven simultaneously, is not applicable to the closure of great saphenous vein root.
Disclosure of Invention
The invention aims to provide a great saphenous vein root closer. The invention can reliably close the root of the great saphenous vein and has the characteristics of convenient use and simple structure.
The technical scheme of the invention is as follows: the large saphenous vein root closer comprises a needle core and an outer sleeve, wherein the needle core is provided with a movable closing sleeve, the outer sleeve is arranged on the outer side of the closing sleeve, the front part of the needle core is provided with a stop block positioned behind the closing sleeve, and the stop block stops the closing sleeve from moving backwards on the needle core; the front end and the rear end of the closed sleeve are respectively provided with an elastic pressing sheet perpendicular to the axis of the closed sleeve, when the closed sleeve is positioned in the outer sleeve, the end parts of the elastic pressing sheets face to the opposite sides of the position where the closed sleeve is positioned and are extruded and rubbed by the outer sleeve, and the elastic pressing sheets rotate after losing the extrusion of the outer sleeve.
In the above saphenous vein root closer, the number of elastic pressing pieces on one side of the closing sleeve is two, and the elastic pressing pieces are symmetrically arranged about the axis of the closing sleeve.
In the above saphenous vein root closer, the outer edge of the front end of the outer sleeve is provided with a chamfer.
In the great saphenous vein root closer, the width of the elastic pressing sheet is 7.8-8.2mm.
In the above saphenous vein root closer, the length of the closing sleeve is 7-8mm.
In the above saphenous vein root closer, the outer diameter of the needle core is 0.9-1.1mm.
In the above saphenous vein root closer, the inner diameter of the outer sleeve is 2.9-3.1mm, and the outer diameter of the outer sleeve is 3.5-3.7mm.
In the above saphenous vein root closer, the outer edge of the elastic pressing piece is provided with an identification marker.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention comprises a needle core and an outer sleeve, wherein the needle core is provided with a movable closing sleeve, the outer sleeve is arranged at the outer side of the closing sleeve, the front part of the needle core is provided with a stop block positioned at the rear part of the closing sleeve, and the stop block stops the closing sleeve from moving backwards on the needle core; the front end and the rear end of the closed sleeve are respectively provided with an elastic pressing sheet perpendicular to the axis of the closed sleeve, when the closed sleeve is positioned in the outer sleeve, the end parts of the elastic pressing sheets face to the opposite side of the position where the closed sleeve is positioned and are extruded and rubbed by the outer sleeve, and the elastic pressing sheets rotate after losing extrusion of the outer sleeve; when the elastic pressing device is used, the outer sleeve is sleeved on the needle core, the elastic pressing pieces at the two ends of the elastic pressing pieces are turned towards the opposite side of the position where the closing sleeve is located and are extruded and fixed by the outer sleeve, the outer sleeve penetrates into the skin of a patient along with the needle core and penetrates through the root of a vein, after the elastic pressing pieces at the current side penetrate through the needle core and reach the other side of the position where the vein is inserted, the outer sleeve is pulled back at the moment to enable the front end of the outer sleeve to leave the position where the front elastic pressing pieces are located, the front elastic pressing pieces lose extrusion, the reset rotation and the outer wall fit of the vein form a barrier, then the needle core and the outer sleeve are simultaneously pulled back, friction generated by extrusion of the rear elastic pressing pieces and the outer sleeve can ensure that the closing sleeve moves back together, the blocked front elastic pressing pieces extrude the vein from the outer side, when the rear elastic pressing pieces reach one side of the position where the vein is inserted, the rear elastic pressing pieces lose extrusion, the reset rotation and the outer wall fit of the other side of the vein are extruded together, so that the vein is sealed and fixed, and the outer sleeve and the needle core are sequentially withdrawn, and the closing sleeve stays in the vein, and the sealing effect is kept conveniently.
2. The stop block can prevent the elastic pressing piece from generating friction force with the elastic pressing piece to drive the closed sleeve to move back when the outer sleeve is independently pulled back, so that a user can conveniently and accurately control the position of the elastic pressing piece, the elastic pressing piece is ensured to reset and rotate in time, and the use reliability is good.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the elastic pressing sheet of the present invention when it is positioned in the outer sleeve;
FIG. 3 is a schematic diagram of the structure of the front elastic pressing sheet after reset and rotation;
fig. 4 is a schematic structural view of the rear elastic pressing sheet after reset and rotation.
The marks in the drawings are: 1-a needle core; 2-an outer sleeve; 3-closing the sleeve; 4-a stop block; 5-closing the sleeve; 6-elastic tabletting; 7-recognition markers.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not intended to be limiting.
Examples: a great saphenous vein root closer, as shown in figure 1, comprises a needle core 1 and an outer sleeve 2, wherein a movable closing sleeve 3 is arranged on the needle core 1, the outer sleeve 2 is arranged on the outer side of the closing sleeve 3, a stop block 4 positioned behind the closing sleeve 3 is arranged at the front part of the needle core 1, the stop block 4 stops the closing sleeve 3 from moving backwards on the needle core 1, the outer sleeve has elasticity, and an inner cavity can deform to fit the shape of an inner part; as shown in fig. 2, the front end and the rear end of the closing sleeve 3 are respectively provided with an elastic pressing sheet 6 perpendicular to the axis of the closing sleeve, when the closing sleeve 5 is positioned in the outer sleeve 2, the end parts of the elastic pressing sheets 6 face to the opposite side of the position of the closing sleeve 5 and are pressed and rubbed by the outer sleeve 2, and the elastic pressing sheets 6 lose the extrusion of the outer sleeve 2 and then rotate; the number of the elastic pressing sheets 6 on one side of the closing sleeve 5 is two, and the elastic pressing sheets are symmetrically arranged about the central line of the closing sleeve 3; the outer edge of the front end of the outer sleeve 2 is provided with a chamfer, so that the outer sleeve can smoothly enter the skin from the puncture opening of the needle core; the width of the elastic pressing sheet 6 is 8mm; the length of the closing sleeve 5 is 7.5mm; the outer diameter of the needle core 1 is 1mm; the inner diameter of the outer sleeve 2 is 3mm, and the outer diameter of the outer sleeve 2 is 3.6mm; the outer edge of the elastic pressing sheet 6 is provided with an identification marker 7, so that the position of the elastic pressing sheet can be observed from the outside by using an instrument, and the closing of veins can be accurately controlled.
Working principle: when the elastic pressing piece is used, the outer sleeve is sleeved on the needle core, the elastic pressing pieces at the two ends of the elastic pressing piece are turned towards the opposite side of the position where the closing sleeve is located and are extruded and fixed by the outer sleeve, the outer sleeve penetrates into the skin of a patient along with the needle core and penetrates through the root of a vein, after the elastic pressing piece at the front side penetrates through the needle core and reaches the other side of the position where the vein is inserted, the outer sleeve is pulled back at the moment, so that the front end of the outer sleeve is separated from the position where the elastic pressing piece at the front side is located, as shown in the attached drawing figure 3, the elastic pressing piece at the front side is not extruded and is reset to form a blocking with the outer wall of the vein, then the needle core is pulled back and the closing sleeve and the outer sleeve are extruded and closed together, and the closing sleeve is kept in the vein in a closed effect in a manner, and the reliability of closing is ensured in an external extrusion manner.
The above examples only show embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the invention, and in the present examples, the upper, lower, left, right, front, and rear represent only relative positions thereof and do not represent absolute positions thereof. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. A great saphenous vein root closer, characterized in that: the needle comprises a needle core (1) and an outer sleeve (2), wherein a movable closing sleeve (3) is arranged on the needle core (1), the outer sleeve (2) is arranged on the outer side of the closing sleeve (3), a stop block (4) positioned at the rear of the closing sleeve (3) is arranged at the front part of the needle core (1), and the stop block (4) stops the closing sleeve (3) from moving backwards on the needle core (1); the front end and the rear end of the closed sleeve (3) are respectively provided with an elastic pressing sheet (6) perpendicular to the axis of the closed sleeve, when the closed sleeve (5) is positioned in the outer sleeve (2), the end part of the elastic pressing sheet (6) faces the opposite side of the position where the closed sleeve (5) is positioned and is extruded and rubbed by the outer sleeve (2), and the elastic pressing sheet (6) rotates after losing the extrusion of the outer sleeve (2).
2. The great saphenous vein root closer of claim 1, wherein: the number of the elastic pressing pieces (6) on one side of the closing sleeve (5) is two, and the elastic pressing pieces are symmetrically arranged about the axis of the closing sleeve (3).
3. The great saphenous vein root closer of claim 1, wherein: the outer edge of the front end of the outer sleeve (2) is provided with a chamfer.
4. The great saphenous vein root closer of claim 1, wherein: the width of the elastic pressing piece (6) is 7.8-8.2mm.
5. The great saphenous vein root closer of claim 1, wherein: the length of the closing sleeve (5) is 7-8mm.
6. The great saphenous vein root closer of claim 1, wherein: the outer diameter of the needle core (1) is 0.9-1.1mm.
7. The great saphenous vein root closer of claim 1, wherein: the inner diameter of the outer sleeve (2) is 2.9-3.1mm, and the outer diameter of the outer sleeve (2) is 3.5-3.7mm.
8. The great saphenous vein root closer of claim 1, wherein: the outer edge of the elastic pressing piece (6) is provided with an identification marker (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310900475.5A CN116672026A (en) | 2023-07-21 | 2023-07-21 | Great saphenous vein root closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310900475.5A CN116672026A (en) | 2023-07-21 | 2023-07-21 | Great saphenous vein root closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116672026A true CN116672026A (en) | 2023-09-01 |
Family
ID=87782175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310900475.5A Withdrawn CN116672026A (en) | 2023-07-21 | 2023-07-21 | Great saphenous vein root closer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116672026A (en) |
-
2023
- 2023-07-21 CN CN202310900475.5A patent/CN116672026A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20230901 |