CN213642756U - Gauge length seal wire - Google Patents
Gauge length seal wire Download PDFInfo
- Publication number
- CN213642756U CN213642756U CN202022193432.2U CN202022193432U CN213642756U CN 213642756 U CN213642756 U CN 213642756U CN 202022193432 U CN202022193432 U CN 202022193432U CN 213642756 U CN213642756 U CN 213642756U
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- Prior art keywords
- core wire
- developing
- guidewire
- gauge
- wire
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- 238000012800 visualization Methods 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical group [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 claims description 2
- 230000003902 lesion Effects 0.000 abstract description 20
- 210000004204 blood vessel Anatomy 0.000 abstract description 18
- 238000011161 development Methods 0.000 description 15
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical group [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 7
- 229910001000 nickel titanium Inorganic materials 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000036285 pathological change Effects 0.000 description 3
- 231100000915 pathological change Toxicity 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 208000031481 Pathologic Constriction Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000002872 contrast media Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000002608 intravascular ultrasound Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000036262 stenosis Effects 0.000 description 2
- 208000037804 stenosis Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000172 allergic effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 208000010668 atopic eczema Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical group 0.000 description 1
- 238000002586 coronary angiography Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
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Abstract
The utility model provides a gauge length seal wire, which comprises a first core wire, wherein at least two developing parts extending along the axial direction of the first core wire are arranged on the first core wire, two adjacent developing parts are arranged on the first core wire at intervals, and correspondingly, a non-developing part is formed between two adjacent developing parts; and the torsion part is sleeved and fixed outside the first core wire and is close to the far end of the first core wire. Under the irradiation of X-ray, the operator can clearly see the positions and the lengths of the two developing parts, and because the two adjacent developing parts are arranged at intervals, the non-developing part can also be seen outside the body, and the length of the lesion can be measured through the lengths of the developing parts and/or the non-developing parts. The first core wire is sleeved with at least one torsion component which can better transmit torque to enable the guide wire to enter a lesion position in a blood vessel more easily.
Description
Technical Field
The utility model relates to the field of medical equipment, concretely relates to scale distance seal wire.
Background
In the process of coronary and peripheral operations, the operator needs to know the specific conditions of the lesion to perform the next treatment, and the specific conditions of the lesion include the length of the lesion, the specific position of the lesion, the stenosis degree of the lesion and the like.
Currently, surgeons typically measure lesions through a guidewire with a visualization length. For example, a multifunctional medical guide wire is proposed, in which developing portions are provided at intervals on a guide wire body, the developing portions include three developing points that are not equidistantly provided, and the length of a lesion is measured by using the distance between two adjacent developing points. Since the blood vessel in the human body is not straight but curved, the guide wire has difficulty in entering the human body, and the guide wire does not smoothly enter the corresponding position.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model is to overcome the defect that the seal wire gets into the blood vessel degree of difficulty among the prior art big to a gauge length seal wire is provided, include:
the developing device comprises a first core wire, a second core wire and a developing device, wherein the first core wire is provided with at least two developing parts extending along the axial direction of the first core wire, two adjacent developing parts are arranged on the first core wire at intervals, and a non-developing part is formed between two adjacent developing parts;
and the torsion part is sleeved and fixed outside the first core wire and is close to the far end of the first core wire.
Further, the torsion member covers at least the developing portion and the non-developing portion.
Furthermore, the number of the torsion parts is at least three, and the torsion parts are sleeved outside the developing part and the non-developing part in a one-to-one correspondence mode.
Further, the developing portion is formed on the torsion member corresponding thereto, and the non-developing portion is formed on the torsion member corresponding thereto.
Further, the torsion member is a wire spring.
Further, the adjacent developing part and the non-developing part are fixed on the first core wire through a joint part.
Further, the joint part is a welding section.
Further, the lengths of any two of the developing portions are not equal.
Furthermore, the distal end of the first core wire is a guide head with a smooth curved surface, the proximal end of the first core wire is provided with a yielding part, and the yielding part is provided with an annular cone which enables the distal end of the first core wire to shrink towards the proximal end.
Further, the distal end of the first core wire has at least one tapered section flaring from its distal end toward its proximal end; at least a portion of at least one of the torsion members is nested outside of the tapered section.
Further, the gauge length guidewire further comprises a second core wire, and the distal end of the second core wire is fixed on the proximal end of the first core wire.
Further, the first core wire is a nickel titanium core wire; the second core wire is a stainless steel core wire.
The utility model discloses technical scheme has following advantage:
1. the utility model provides a scale distance seal wire is provided with two at least development portions along its axial extension on the first core silk, two adjacent development portion intervals set up on first core silk, form non-development portion between two adjacent development portions, under X ray's irradiation, the position and the length of two development portions can clearly be seen to the art person, and because two adjacent development portion intervals set up, non-development portion also can be seen outside this moment, the length of pathological change can be measured through development portion and/or non-development portion's length. The first core wire is sleeved with at least one torsion component which can better transmit torque to enable the guide wire to enter a lesion position in a blood vessel more easily.
2. The utility model provides a scale distance seal wire, the length of pathological change can be measured accurately to the cooperation of the development portion of different length and the non-development portion, and the model of follow-up surgical instruments (sacculus, support etc.) is selected according to the length of pathological change to the operation person of being convenient for, can also utilize this seal wire to transport selected surgical instruments.
3. The utility model provides a scale mark distance seal wire, first core silk are nickel titanium, and second core silk is the stainless steel, and the compound core silk that stainless steel core silk and nickel titanium core silk constitute, when near-end stainless steel core silk keep the holding power, distal end nickel titanium core silk elasticity and bending property have concurrently, improve the passing rate that the seal wire passes through the blood vessel.
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 embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are 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 structural view of the gauge length guide wire of the present invention;
FIG. 2 is an enlarged view of the first developing portion of FIG. 1;
FIG. 3 is an enlarged view of the first non-developing portion of FIG. 1;
FIG. 4 is an enlarged view of the second developing portion of FIG. 1;
FIG. 5 is an enlarged view of a second non-developing portion of FIG. 1;
fig. 6 is a schematic structural view of the gauge length guide wire of the present invention at the focus;
fig. 7 is a schematic structural view of the gauge length guide wire with a spring removed.
Description of reference numerals:
10. a first core wire; 11. a first developing section; 12. a first non-developing section; 13. a second developing section; 14. a second non-developing section; 20. a second core filament; 21. a connecting portion; 31. a first engagement portion; 32. a second engagement portion; 33. a third engagement portion; 34. a concession part; 35. a guide head; 40. a blood vessel; 41. and (5) a focus.
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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
In order to measure the length, specific position, stenosis degree and other specific conditions of the intravascular lesion of the patient, the operator may use a catheter with a gauge function, coronary angiography, intravascular ultrasound and the like to perform the measurement. However, these approaches have some drawbacks, such as the inability of the gauge-action catheter to measure the lesion status of a vessel bifurcation; if the patient suffers from certain diseases, the use of contrast agents can cause serious side effects to the patient, and individual patients may even become allergic to the contrast agents; intravascular ultrasound is costly and requires the use of special catheters for imaging.
For the convenience of the following description, the end close to the operator is used as the proximal end, and the end far from the operator is used as the distal end.
The utility model provides a scale distance seal wire, including first core silk 10 and at least one torsion part, be equipped with two at least development portions along the axial extension of first core silk 10 on the first core silk 10, two adjacent development portion intervals set up on first core silk 10, correspondingly, form non-development portion between two adjacent development portions. As shown in fig. 1, the developing part includes a first developing part 11 and a second developing part 13, a first non-developing part 12 is formed between the first developing part 11 and the second developing part 13, and in some embodiments, a third developing part (not shown), a fourth developing part (not shown), and so on may be further spaced on the first core wire 10. The torsion member is disposed and fixed outside the first core wire 10 and near the distal end of the first core wire 10, and in some embodiments, the torsion member may also be located at the distal end of the first core wire 10.
In the above embodiments, the lengths of any two developing parts may be equal or unequal, that is, the lengths of the first developing part 11 and the second developing part 13 may be any value such as 15 mm, 20 mm, 25 mm, 30 mm, 45 mm, and the like; and the lengths of any two non-developing parts may be equal or unequal, that is, the lengths of the first non-developing part 12 and the second non-developing part 14 may also be any value such as 15 mm, 20 mm, 25 mm, 30 mm, 45 mm, and the like.
Each developing part can be observed by the operator in vitro under the irradiation of X-rays, and as shown in fig. 6, the length of the lesion (also referred to as lesion) 41 in the blood vessel 40 is the length of the first developing part 11 and the first non-developing part 12, and since the operator knows the length of each developing part and non-developing part in advance, the lesion 41 can be accurately measured by each developing part and/or non-developing part. When the length of the lesion 41 is smaller than the length of a single developing part, a non-developing part, or the length where a developing part and a non-developing part are connected, the calculation can be performed by the ratio of the length of the lesion 41 to the length of the developing part or the non-developing part. The torsion component on the first core wire 10 can transmit torque well, and the first core wire 10 can adapt to the bending of the blood vessel well and further reach the position of the focus 41 smoothly due to the action of the torsion component when passing through the blood vessel.
In some embodiments, the torsion member may cover the non-developing portion, the developing portion, or both the developing portion and the non-developing portion. When the number of the torsion members is at least three, the torsion members can be sleeved outside the developing part and the non-developing part in a one-to-one correspondence manner. In some embodiments, the developing portion may also be molded on the torsion member corresponding thereto, and the non-developing portion may also be molded on the torsion member corresponding thereto, that is, the torsion member is the developing portion and/or the non-developing portion.
The torsion member may be a wire spring, a torsion spring, or the like, and when the torsion member is a wire spring, the wire spring of the developing portion may be a metal such as platinum, gold, or an alloy thereof, and the wire spring of the non-developing portion may be a metal such as stainless steel, nickel titanium, or the like. The wire spring can provide the first core wire 10 with a supporting force for the blood vessel when the torque is transmitted well.
As shown in fig. 1 to 5, in some embodiments, adjacent developing and non-developing portions are fixed to the first core wire 10 by a joint portion therebetween. For example, the first, second, and third joining portions 31, 32, and 33 cooperate to fix the first developing portion 11, the first non-developing portion 12, the second developing portion 13, and the second non-developing portion 14 to the first core wire 10. The joining portion may be a glue, a welding segment, or the like, and since the length of the joining portion in the axial direction of the first core wire 10 is negligibly small, the joining portion may also function to connect adjacent developing portions and non-developing portions.
As shown in fig. 1, 2 and 5, the distal end of the first core wire 10 has a guiding head 35 with a smooth curved surface, the smooth curved surface of the guiding head 35 can prevent the first core wire 10 from injuring the blood vessel when entering the blood vessel, the guiding head 35 can be a welding section, a fastener, etc., and can also play a role in fixing the first visualization part 11 on the first core wire 10, and the first visualization part 11 is located at the distal end of the first core wire 10, so that a doctor can know the position of the first core wire 10 in the process of entering the blood vessel conveniently.
In some embodiments, the proximal end of the first core wire 10 is further provided with a relief portion 34, and the relief portion 34 has an annular cone shape that the distal end of the first core wire 10 shrinks towards the proximal end, so that when the operator pulls back the guide wire, the relief portion 34 can prevent the injury to the blood vessel, and the second non-imaging portion 14 can be fixed on the first core wire 10. In other embodiments, the relief 34 secures the developed or other non-developed portion to the first core wire 10.
As shown in fig. 7, in some embodiments, the distal end of the first core wire 10 has at least one tapered section flaring from its distal end toward its proximal end, the tapered section being about 0.1mm in size and having a length; at least part of at least one torsion part is sleeved outside the conical section, the distal end of the first core wire 10 can be softened by the conical section, the injury to blood vessels caused by overlarge force when the guide wire is pushed is avoided, and meanwhile, the torsion parts (a developing spring and a non-developing spring) can be conveniently penetrated.
As shown in fig. 7, in some embodiments, the first core wire 10 and the second core wire 20 have a long bar shape, and the cross section thereof may be circular, rectangular, or the like. The gauge guidewire further comprises a second core wire 20, the distal end of the second core wire 20 is fixed to the proximal end of the first core wire 10, as shown in fig. 1, and the connecting part 21 is a fixed position of the first core wire 10 and the second core wire 20. In addition, the first core wire 10 may be made of metal such as stainless steel, nitinol, etc., and the second core wire 20 may be made of stainless steel, and in order to smoothly push the guide wire into the blood vessel, the friction between the gauge length guide wire and the blood vessel should be reduced as much as possible during the pushing process, and a layer of polytetrafluoroethylene may be coated on the outer surface of the second core wire 20. The gauge length guide wire is a composite core wire formed by stainless steel and nickel titanium, the second core wire 20 is made of stainless steel and can maintain supporting force, the first core wire 10 is made of nickel titanium and has elasticity and flexibility, and the probability that the guide wire passes through a blood vessel is improved.
The operator precisely measures the length of the lesion 41 through the visualization part and/or the non-visualization part, thereby selecting the model of a specific surgical instrument (balloon, stent, etc.), and the selected surgical instrument (balloon, stent, etc.) can be transported to the location of the lesion 41 through a guide wire having not only the function of a general guide wire but also the specific condition of precisely measuring the lesion 41. The gauge length guide wire is low in measurement cost, does not have side effects on a human body, and reduces the complexity of an operation to a certain extent.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (12)
1. A gauge guidewire, comprising:
the core wire comprises a first core wire (10), wherein at least two developing parts extending along the axial direction of the first core wire (10) are arranged on the first core wire (10), two adjacent developing parts are arranged on the first core wire (10) at intervals, and a non-developing part is formed between the two adjacent developing parts;
and the torsion part is sleeved and fixed outside the first core wire (10) and is close to the far end of the first core wire (10).
2. The gauge guidewire of claim 1, wherein the torsion member covers at least the visualization portion and the non-visualization portion.
3. The gauge length guidewire of claim 2, wherein the number of the torsion members is at least three, and the torsion members are sleeved outside the visualization portion and the non-visualization portion in a one-to-one correspondence.
4. The gauge guidewire of claim 3, wherein the visualization portion is molded on the torsion member corresponding thereto and the non-visualization portion is molded on the torsion member corresponding thereto.
5. The gauge guidewire of any one of claims 1-4, wherein the torsion member is a guidewire spring.
6. The gauge wire according to any one of claims 1-4, wherein adjacent developing and non-developing portions are secured to the first core wire (10) by a splice therebetween.
7. The gage guidewire of claim 6, wherein the engagement portion is a welded segment.
8. The gauge guidewire of any one of claims 1-4, wherein the lengths of any two of the visualization portions are not equal.
9. The gauge length guidewire of any one of claims 1-4, wherein the distal end of the first core wire (10) is a smoothly curved guide head (35), and the proximal end of the first core wire (10) is provided with a relief (34), the relief (34) having an annular cone that tapers proximally from the distal end of the first core wire (10).
10. The gauge guidewire of any one of claims 1-4, wherein the distal end of the first core wire (10) has at least one tapered section flaring from its distal end toward its proximal end; at least a portion of at least one of the torsion members is nested outside of the tapered section.
11. The gauge guidewire of any one of claims 1-4, further comprising a second core wire (20), a distal end of the second core wire (20) being secured to a proximal end of the first core wire (10).
12. The gauge guidewire of claim 11, wherein the first core wire (10) is a nitinol core wire; the second core wire (20) is a stainless steel core wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022193432.2U CN213642756U (en) | 2020-09-29 | 2020-09-29 | Gauge length seal wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022193432.2U CN213642756U (en) | 2020-09-29 | 2020-09-29 | Gauge length seal wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213642756U true CN213642756U (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022193432.2U Active CN213642756U (en) | 2020-09-29 | 2020-09-29 | Gauge length seal wire |
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| Country | Link |
|---|---|
| CN (1) | CN213642756U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115445056A (en) * | 2022-08-31 | 2022-12-09 | 上海英威思医疗科技有限公司 | Stent delivery guide wire and preparation method thereof |
-
2020
- 2020-09-29 CN CN202022193432.2U patent/CN213642756U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115445056A (en) * | 2022-08-31 | 2022-12-09 | 上海英威思医疗科技有限公司 | Stent delivery guide wire and preparation method thereof |
| CN115445056B (en) * | 2022-08-31 | 2024-04-26 | 上海英威思医疗科技有限公司 | Stent delivery guide wire and preparation method thereof |
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Address after: 201800 Building 2, 925 Jinyuan 1st Road, Jiading District, Shanghai Patentee after: Shanghai Yingtai Medical Equipment Co.,Ltd. Country or region after: China Address before: 201800 Building 2, 925 Jinyuan 1st Road, Jiading District, Shanghai Patentee before: SHANGHAI KINDLY MEDICAL INSTRUMENTS Co.,Ltd. Country or region before: China |