CN213552662U - Novel guide catheter device for expanding upper left pulmonary artery - Google Patents
Novel guide catheter device for expanding upper left pulmonary artery Download PDFInfo
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- CN213552662U CN213552662U CN202121097460.2U CN202121097460U CN213552662U CN 213552662 U CN213552662 U CN 213552662U CN 202121097460 U CN202121097460 U CN 202121097460U CN 213552662 U CN213552662 U CN 213552662U
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- 210000001147 pulmonary artery Anatomy 0.000 title claims abstract description 26
- 238000005452 bending Methods 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- -1 polyethylene Polymers 0.000 claims abstract description 8
- 230000007704 transition Effects 0.000 claims abstract description 6
- 239000004698 Polyethylene Substances 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims abstract description 4
- 229920000573 polyethylene Polymers 0.000 claims abstract description 4
- 239000002861 polymer material Substances 0.000 claims abstract description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 4
- 210000004072 lung Anatomy 0.000 abstract description 11
- 210000001367 artery Anatomy 0.000 abstract description 5
- 230000002685 pulmonary effect Effects 0.000 abstract description 5
- 230000036285 pathological change Effects 0.000 abstract description 2
- 231100000915 pathological change Toxicity 0.000 abstract description 2
- 230000002792 vascular Effects 0.000 abstract description 2
- 230000010339 dilation Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 11
- 208000002815 pulmonary hypertension Diseases 0.000 description 5
- 208000026151 Chronic thromboembolic pulmonary hypertension Diseases 0.000 description 4
- 210000004204 blood vessel Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 241000252185 Cobitidae Species 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000916 dilatatory effect Effects 0.000 description 2
- 210000003191 femoral vein Anatomy 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 230000002966 stenotic effect Effects 0.000 description 2
- 210000001631 vena cava inferior Anatomy 0.000 description 2
- 206010013975 Dyspnoeas Diseases 0.000 description 1
- 208000010378 Pulmonary Embolism Diseases 0.000 description 1
- 206010058491 Pulmonary artery dilatation Diseases 0.000 description 1
- 206010047141 Vasodilatation Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000002399 angioplasty Methods 0.000 description 1
- 230000002968 anti-fracture Effects 0.000 description 1
- 230000010100 anticoagulation Effects 0.000 description 1
- 230000004872 arterial blood pressure Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008081 blood perfusion Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013171 endarterectomy Methods 0.000 description 1
- 238000002594 fluoroscopy Methods 0.000 description 1
- 230000004217 heart function Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000013152 interventional procedure Methods 0.000 description 1
- 238000002690 local anesthesia Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010837 poor prognosis Methods 0.000 description 1
- 230000008704 pulmonary vasodilation Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- 230000000472 traumatic effect Effects 0.000 description 1
- 230000024883 vasodilation Effects 0.000 description 1
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Abstract
The utility model discloses a novel guide catheter device for left superior pulmonary artery dilation, which is provided with a soft head end, an anti-bending section and a supporting section from a near end to a far end in sequence; the outer layer of the soft head end is made of polyethylene high polymer material, and the inner layer of the soft head end is a polytetrafluoroethylene material coating; the middle layer of the anti-bending section and the supporting section is also provided with a steel wire mesh woven by steel wires except the inner layer and the outer layer; the soft head end passes through the transition of the anti-bending section and is in the same direction as the supporting section; the guide catheter is of a U-shaped structure. The utility model discloses can establish the passageway that reachs target pulmonary vascular pathological change position in interveneeing the treatment, can be convenient for again intervene the transport of support or apparatus, its length and structure are applicable to the left lung upper lobe artery that is difficult to reach in the past, have avoided the poor problem of selectivity intubate difficulty and guide pipe whole support force, are showing saving operation time, reduce the operation risk, improve maneuverability and the efficiency of interveneeing the operation.
Description
Technical Field
The utility model relates to a device for vascular intervention treatment, in particular to a guide catheter device for left pulmonary superior arteria pulmonis expansion.
Background
Chronic thromboembolic pulmonary hypertension (CTEPH) refers to the increase of the average pressure of resting pulmonary arteries (normally less than or equal to 25 mmHg, 1 mmHg = 0.133 kPa) due to pulmonary vessel occlusion after pulmonary thromboembolism, and the symptoms are still obvious and pulmonary hypertension exists after sufficient anticoagulation treatment for at least 3 months, and the main clinical manifestations are: labored breathing difficulty, fatigue, weakness, even sudden syncope and the like. Untreated CTEPH has a poor prognosis with over 50% mortality within 3 years. At present, the main treatment means of CTEPH include methods such as pulmonary endarterectomy, targeted medicine and Balloon Pulmonary Angioplasty (BPA). BPA is a less traumatic and more widely used interventional procedure, and aims to improve the blood perfusion of pulmonary arteries, reduce pulmonary artery pressure and improve right heart function by dilating the stenotic or occluded pulmonary artery. The existing guide catheter for BPA treatment adopts a suitable type of peripheral artery, the length and the curvature of the guide catheter are suitable for the inferior vena cava of the double lungs, and the lesion of the double upper lungs causes that the existing guide catheter is not enough to support interventional operation treatment due to special blood vessel distribution positions, thereby increasing the operation time and increasing the radiation irradiation time in the operation of an operator and a patient, so that the development of the guide catheter suitable for the double upper lungs is very necessary, in particular to the guide catheter specially used for left superior pulmonary artery dilatation.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems which cannot be solved by the prior guiding catheter for pulmonary vasodilation,
the utility model provides a left pulmonary superior lobe artery intervenes treatment expansion and uses guide catheter device, this guide catheter device sets gradually by near-end to distal end includes: a soft head end, an anti-bending section and a supporting section; the outer layer of the soft head end is made of polyethylene high polymer material, and the inner layer of the soft head end is a polytetrafluoroethylene material coating; the middle layer of the anti-bending section and the supporting section is also provided with a steel wire mesh woven by steel wires except the inner layer and the outer layer; the soft head end passes through the transition of the anti-bending section and is in the same direction as the supporting section; the guide catheter is of a U-shaped structure.
In some embodiments, the guiding catheter device is characterized in that the soft tip is 0.8-1.2cm in length.
In some embodiments, the guiding catheter device, wherein the kink-resistant section is 0.8-1.2cm in length.
In some embodiments, the guide catheter device, wherein the support section has a length of 50-150 cm.
In some embodiments, the guide catheter device is characterized in that the guide catheter is a round tube.
In some embodiments, the guide catheter device is characterized in that the soft tip length is the same as the kink length, e.g., each about 1 cm.
Compared with the prior art, the utility model has the advantages of it is following: the device is formed by adopting an advanced multi-section design structure, and the folding resistance and the coaxiality can be improved. Soft head end has more clear visuality and stability, and this design guide catheter can get into the main trunk of left pulmonary artery in the same place when the operation, and the anti section of rolling over of front end and soft section are complied with the left pulmonary artery and are walked, and the pipe overall position more can acquire stable holding power this moment, and great internal diameter can propelling movement apparatus more easily. The designed bending resistant section can ensure the transition from the harder proximal end to the softer distal end, provides more convenient twisting control operation, reduces the swing incidence and keeps the shape unchanged in the operation.
The utility model provides a left lung superior lobe artery guide tube for expansion, in intervention treatment, can establish the passageway that reachs target lung blood vessel pathological change position, can be convenient for again intervene the transport of support or apparatus, its length and structure are applicable to the left lung superior lobe artery that is difficult to arrive in the past, have avoided the poor problem of selectivity intubate difficulty and the whole holding power of guide tube, are showing saving operation time, reduce the operation risk, improve maneuverability and the efficiency of interveneeing the operation.
Drawings
Fig. 1 is a schematic view of a guide catheter device for left superior pulmonary artery interventional treatment expansion according to the present invention.
Description of the reference numerals
1 soft head end
2 anti-bending section
And 3, supporting the sections.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example (b): left superior pulmonary artery guiding catheter
A novel guide catheter device for left superior pulmonary artery interventional therapy expansion is sequentially arranged from a near end to a far end and comprises: the flexible head end 1, the anti-bending section 2 and the supporting section 3; the soft head end passes through the transition of the anti-bending section and is in the same direction with the supporting section. The guide catheter is a circular tube.
Soft head end 1: the perspective visibility is strong, the left upper lobe pulmonary artery walking is conformed, and the position is ensured to be stable in operation; the soft material is soft, and the pulmonary artery injury such as the interlayer is avoided, so that the safety is ensured; the outer layer of the soft head end is made of polyethylene polymer material, and the shape and the hardness of the catheter are controlled; the inner layer is a polytetrafluoroethylene material coating, so that the friction force with the inner cavity of the catheter is reduced, the length of the head end is 1cm, the head end is in the same direction with the trunk-support section 3 after passing through the transition of the anti-bending section, and the head end is convenient to hook and select to enter the left superior pulmonary artery branch after entering the left branch of the pulmonary artery;
and (3) an anti-bending section 2: the middle layer of the anti-bending section is provided with a steel wire mesh woven by steel wires except the inner layer and the outer layer, so that the catheter is anti-bending and anti-twisting, the guide wire is withdrawn after entering the pulmonary artery cavity under the assistance of the guide wire, the catheter recovers the external shaping, and the left upper pulmonary artery intubation is convenient to select and has the length of 1 cm; the catheter is in a U-shaped structure according to the shape characteristics of the superior left pulmonary artery and the shape characteristics of the superior left pulmonary artery.
Support section 3: the support section is outside outer outside the interior outer layer, and the intermediate level has the wire net that the steel wire was woven, makes pipe anti-fracture, antitorque distortion, the support section length is 100cm, and guarantees compliance in the pipe route and the transmission effect in the operation.
The utility model discloses a working process does: when the patient is in use, the patient lies on the back, the conventional femoral vein (generally the right side) is disinfected and paved with the towel, the puncture femoral vein under the local anesthesia is placed into the 5F sheath, and the loach guide wire is used for assisting in replacing the 5F short sheath into the 6F long sheath under fluoroscopy. A long sheath is delivered to the main pulmonary artery using a pigtail catheter and guidewire. The novel guide catheter is fed into the novel guide catheter under the assistance of the guide wire through the long sheath, the preset forming is recovered after the catheter head end is sheathed, the guide catheter is directly and selectively inserted into the upper lobe of the left lung by utilizing the design shape of the guide catheter, and after the soft head end of the guide catheter enters the selected upper lobe branch of the left lung, the soft section is designed to prevent the blood vessel from being damaged in the inserting process; the anti-bending section adapts to the main shape of the left lung superior lobe, the integral stability of the sheath tube and the guide catheter is kept, good supporting force is provided for the balloon catheter sent by the guide catheter and the subsequent left lung superior lobe branch lesion vasodilatation treatment under the position, and the smooth proceeding of BPA treatment is guaranteed. When the operation is finished and the guide tube is withdrawn or is more smoothly guided, the guide tube can be directly withdrawn without being sent into the loach guide wire straightening guide tube due to the soft design of the head end, so that the damage to the blood vessel wall can be avoided, and the ray exposure time in the operation is shortened.
In the above-mentioned working process, the sheath: venous access is obtained and maintained, and a guide catheter enters the inferior vena cava through the sheath and finally reaches the pulmonary artery. Balloon: a tool for dilating a stenotic or occluded diseased pulmonary artery branch is operated by a guiding catheter into the diseased region of the pulmonary artery.
What has been described above is merely an exemplary embodiment of the present invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (7)
1. A novel guide catheter device for expanding left superior pulmonary artery, which is characterized in that the guide catheter device is sequentially arranged from a near end to a far end and comprises: a soft head end, an anti-bending section and a supporting section; the outer layer of the soft head end is made of polyethylene high polymer material, and the inner layer of the soft head end is a polytetrafluoroethylene material coating; the middle layer of the anti-bending section and the supporting section is also provided with a steel wire mesh woven by steel wires except the inner layer and the outer layer; the soft head end passes through the transition of the anti-bending section and is in the same direction as the supporting section; the guide catheter is of a U-shaped structure.
2. The guiding catheter device of claim 1, wherein said soft tip is 0.8-1.2cm in length.
3. A guide catheter device according to claim 1, wherein said kink-resistant section is 0.8-1.2cm in length.
4. The guide catheter device according to claim 1, wherein the support section is 50-150cm in length.
5. The guide catheter device of any one of claims 1-4, wherein the guide catheter is a round tube.
6. The guide catheter device according to claim 5, wherein the soft tip length is the same as the kink length.
7. The guiding catheter device of claim 6 wherein said soft tip length and said kink-resistant length are each 1 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121097460.2U CN213552662U (en) | 2021-05-21 | 2021-05-21 | Novel guide catheter device for expanding upper left pulmonary artery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121097460.2U CN213552662U (en) | 2021-05-21 | 2021-05-21 | Novel guide catheter device for expanding upper left pulmonary artery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213552662U true CN213552662U (en) | 2021-06-29 |
Family
ID=76553441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121097460.2U Active CN213552662U (en) | 2021-05-21 | 2021-05-21 | Novel guide catheter device for expanding upper left pulmonary artery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213552662U (en) |
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2021
- 2021-05-21 CN CN202121097460.2U patent/CN213552662U/en active Active
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