CN211434684U - Small-diameter balloon catheter - Google Patents
Small-diameter balloon catheter Download PDFInfo
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- CN211434684U CN211434684U CN201922293004.4U CN201922293004U CN211434684U CN 211434684 U CN211434684 U CN 211434684U CN 201922293004 U CN201922293004 U CN 201922293004U CN 211434684 U CN211434684 U CN 211434684U
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Abstract
The utility model discloses a small-diameter balloon catheter, which comprises a catheter body, wherein a catheter seat is arranged at the tail end of the catheter body, and an expansion balloon is sleeved at the periphery of the head of the catheter body; the tube body comprises a main cavity channel and a side cavity channel, the side cavity channel is communicated with the expansion saccule, and the main cavity channel is communicated with the head end of the tube body; the catheter seat comprises a main cavity joint and a side cavity joint, the main cavity joint is communicated with the main cavity channel, and the side cavity joint is communicated with the side cavity channel; the expansion sacculus and the pipe body are coaxially arranged, the two ends of the expansion sacculus are fixedly connected with the outer wall of the pipe body, and the expansion sacculus is internally provided with a developing mark. The utility model discloses the product size is little, and product quality controls easily, and the yields is high.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a minor diameter sacculus pipe.
Background
In China, the number of people with cardiovascular diseases is extremely high, wherein more than 1300 ten thousand of cerebral apoplexy and more than 1100 ten thousand of coronary heart disease occur. The number of PCI operations in China in 2018 is 91.5 ten thousand. The stent penetration rate is as high as 90%, and the treatment operation of cerebrovascular stenosis is also carried out in large quantities every year. At present, the endovascular stenosis and obstruction lesions are treated mainly by endovascular balloon dilatation and stent implantation.
Balloon catheters are a tool for angioplasty. Under the guidance of medical imaging equipment, a balloon catheter is conveyed to a narrow part of a blood vessel by a percutaneous puncture technology, and the balloon is expanded under strict monitoring to expand the narrow part of the blood vessel, so that the diameter of a lumen is recovered, the blood flow is improved, and the stent is convenient to implant. After the stent is implanted successfully, the balloon is expanded to prevent restenosis.
The balloon catheter is an indispensable medical instrument for vascular interventional therapy. Under the condition of the existing production process, the forming rate of the small-diameter saccule with the diameter of 1.0-10.0mm is extremely low, and the saccule is broken in the manufacturing and forming process, the detection and expansion process of the saccule, the rupture during clinical use and the like. Raw materials are greatly wasted, mass production is not facilitated, and risks in clinical operations are increased. Through the extrusion of analysis sacculus material pipe among the current technological process, it is the biggest to the preparation of sacculus influence, exists like in extruding: deformation, eccentricity, shrinkage, protrusion, rough surface, microcrack and the like also seriously affect the forming rate and performance of the later-stage balloon.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a minor diameter sacculus pipe and manufacturing method thereof, the withstand voltage value is stable, and product quality controls easily, and the yields is high.
In order to achieve the purpose, the utility model adopts the following technical proposal to realize:
the utility model discloses a small-diameter balloon catheter, which comprises a catheter body, wherein a catheter seat is arranged at the tail end of the catheter body, and an expansion balloon is sleeved at the periphery of the head of the catheter body;
the tube body comprises a main cavity channel and a side cavity channel, the side cavity channel is communicated with the expansion saccule, and the main cavity channel is communicated with the head end of the tube body;
the catheter seat comprises a main cavity joint and a side cavity joint, the main cavity joint is communicated with the main cavity channel, and the side cavity joint is communicated with the side cavity channel;
the expansion saccule and the pipe body are coaxially arranged, two ends of the expansion saccule are fixedly connected with the outer wall of the pipe body, a developing mark is arranged in the expansion saccule,
the diameter of the expansion saccule is 0.8 mm-2.0 mm under the folding state,
the diameter of the expansion saccule is 1.0 mm-10.0 mm under the expansion state.
Preferably, the head end of the pipe body is of a conical structure.
Preferably, the developing marks are arranged on the outer wall of the pipe body, and the two developing marks are arranged along the axial direction of the pipe body.
Preferably, the side cavity channel is provided in the side wall of the tube body.
Preferably, the side cavity channel is sleeved outside the main cavity channel, and the side cavity channel and the main cavity channel are coaxially arranged.
Preferably, the outer surface of the dilatation balloon is provided with a drug coating.
The utility model also discloses a manufacturing method of foretell minor diameter sacculus pipe, including following step:
s100, co-extruding a core rod and a balloon material with fixed sizes to obtain a semi-finished material pipe;
s200, rolling the extruded semi-finished material pipe by using a roller, controlling the outer diameter and the surface smoothness of the semi-finished material pipe, and removing micro-defects and cracks to obtain a finished material pipe;
s300, extracting the core rod, and reserving a finished material pipe;
s400, blow-molding a finished material pipe in a balloon mold with a specific shape to obtain an expanded balloon;
s500, assembling the obtained expansion balloon, the tube body and the catheter seat, and spraying the medicine on the surface of the balloon by using spraying equipment to obtain the small-diameter balloon catheter.
Preferably, in step S100, the balloon material is plastic or a composite thereof, including but not limited to nylon.
Preferably, in step S100, the mandrel with a fixed size may be a single component metal mandrel, an alloy metal mandrel, a plastic mandrel, a composite material mandrel, or the like.
Preferably, in step S200, the semi-finished material tube is rolled for a plurality of times, and the adjacent roller pairs are arranged in an inclined manner, that is, in a non-parallel manner.
Preferably, in step S200, the semi-finished material tube is rolled for multiple times, and the adjacent roller pairs are arranged in parallel.
Preferably, after step S200, the semi-finished material tube is cooled to obtain a finished material tube.
Preferably, in step S200, the rolling temperature is 0-400 ℃.
Preferably, in step S200, the rolling mode is normal temperature rolling.
Preferably, in step S200, the rolling mode is high-temperature rolling.
Preferably, in step S200, the rolled roll profile may be cylindrical.
Preferably, in step S200, the rolled roll profile may be a profiled roll.
Preferably, in step S200, the rolled surface of the roll may be a profile hole rolled.
Preferably, in step S400, the temperature of the hot roll is 0 to 400 ℃.
The utility model has the advantages that:
1. the utility model discloses can make the less sacculus pipe of diameter under the circumstances of guaranteeing yields and product quality.
2. The utility model discloses using the roll technique to make the material pipe, can guaranteeing to reduce deformation, off-centre, shrink, arch, the condition such as surperficial roughness, crazing line in the production process, improved the yields, the device reliability improves the size precision of sacculus material pipe, the control of size when conveniently extruding.
Drawings
FIG. 1 is a cross-sectional view of a first embodiment of a small diameter balloon catheter;
FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1
FIG. 3 is a cross-sectional view of a second embodiment of a small diameter balloon catheter;
fig. 4 is a sectional view of B-B in fig. 3.
In the figure: 1-tube body, 2-catheter seat, 3-expansion balloon, 4-main cavity channel, 5-side cavity channel, 6-main cavity joint, 7-side cavity joint and 8-developing mark.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, an embodiment of the small-diameter balloon catheter includes a catheter body 1, a catheter seat 2 is arranged at the tail end of the catheter body 1, and an expansion balloon 3 is sleeved on the periphery of the head of the catheter body 1;
the tube body 1 comprises a main cavity channel 4 and a side cavity channel 5, the side cavity channel 5 is communicated with the expansion saccule 3, the main cavity channel 4 is communicated with the head end of the tube body 1, and the head end of the tube body 1 is of a conical structure;
the catheter seat 2 comprises a main cavity joint 6 and a side cavity joint 7, the main cavity joint 6 is communicated with the main cavity channel 4, the side cavity joint 7 is communicated with the side cavity channel 5, and the side cavity channel 5 is arranged in the side wall of the catheter body 1;
the expansion sacculus 3 is arranged coaxially with the pipe body 1, two ends of the expansion sacculus 3 are fixedly connected with the outer wall of the pipe body 1, the development marks 8 are arranged in the expansion sacculus 3, the development marks 8 are arranged on the outer wall of the pipe body 1, the two development marks 8 are arranged along the axial direction of the pipe body 1,
the diameter of the expansion saccule 3 is 0.8 mm-2.0 mm under the folding state,
the diameter of the expansion saccule 3 is 1.0 mm-10.0 mm under the expansion state,
the outer surface of the expansion saccule 3 is provided with a drug coating, such as paclitaxel, rapamycin, paclitaxel derivatives or rapamycin derivatives.
As shown in fig. 3 and 4, the second embodiment of the small-diameter balloon catheter differs from the first embodiment in that the side cavity channel 5 is sleeved outside the main cavity channel 4, and the side cavity channel 5 and the main cavity channel 4 are coaxially arranged.
The manufacturing method of the small-diameter balloon catheter comprises the following steps:
s100, co-extruding a core rod and a balloon material with fixed sizes to obtain a semi-finished material pipe;
s200, rolling the extruded semi-finished material pipe by using a roller, controlling the outer diameter and the surface smoothness of the semi-finished material pipe, and removing micro-defects and cracks to obtain a finished material pipe;
s300, extracting the core rod, and reserving a finished material pipe;
s400, blow-molding a finished material pipe in a balloon mold with a specific shape to obtain an expansion balloon 3;
s500, assembling the obtained expansion balloon 3, the tube body 1 and the catheter seat 2, and spraying the medicine on the surface of the expansion balloon 3 by using spraying equipment to obtain the small-diameter balloon catheter.
In order to ensure that the thickness of the expansion balloon 3 is uniform, in step S200, the semi-finished material tube is rolled for a plurality of times, and the adjacent roller pairs are arranged at a certain angle, such as a right angle, an acute angle, and the like.
Of course, the present invention may have other embodiments, and those skilled in the art may make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the protection scope of the appended claims.
Claims (7)
1. A small diameter balloon catheter characterized by: comprises a tube body (1), a catheter seat (2) is arranged at the tail end of the tube body (1), and an expansion balloon (3) is sleeved on the periphery of the head of the tube body (1);
the tube body (1) comprises a main cavity channel (4) and a side cavity channel (5), the side cavity channel (5) is communicated with the expansion saccule (3), and the main cavity channel (4) is communicated with the head end of the tube body (1);
the catheter seat (2) comprises a main cavity joint (6) and a side cavity joint (7), the main cavity joint (6) is communicated with the main cavity channel (4), and the side cavity joint (7) is communicated with the side cavity channel (5);
the expansion saccule (3) and the pipe body (1) are coaxially arranged, two ends of the expansion saccule (3) are fixedly connected with the outer wall of the pipe body (1), a developing mark (8) is arranged in the expansion saccule (3),
the diameter of the expansion saccule (3) is 0.8 mm-2.0 mm under the folding state,
the diameter of the expansion saccule (3) is 1.0 mm-10.0 mm under the expansion state.
2. The small diameter balloon catheter according to claim 1, wherein: the head end of the pipe body (1) is of a conical structure.
3. The small diameter balloon catheter according to claim 1, wherein: the developing marks (8) are arranged on the outer wall of the pipe body (1), and the two developing marks (8) are arranged along the axial direction of the pipe body (1).
4. The small diameter balloon catheter according to claim 1, wherein: the side cavity channel (5) is arranged in the side wall of the tube body (1).
5. The small diameter balloon catheter according to claim 1, wherein: the side cavity channel (5) is sleeved outside the main cavity channel (4), and the side cavity channel (5) and the main cavity channel (4) are coaxially arranged.
6. The small diameter balloon catheter according to claim 1, wherein: the outer surface of the expansion sacculus (3) is provided with a medicine coating.
7. The small diameter balloon catheter according to claim 6, wherein: the medicine coating component is paclitaxel, rapamycin, paclitaxel derivative or rapamycin derivative.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922293004.4U CN211434684U (en) | 2019-12-18 | 2019-12-18 | Small-diameter balloon catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922293004.4U CN211434684U (en) | 2019-12-18 | 2019-12-18 | Small-diameter balloon catheter |
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| Publication Number | Publication Date |
|---|---|
| CN211434684U true CN211434684U (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922293004.4U Active CN211434684U (en) | 2019-12-18 | 2019-12-18 | Small-diameter balloon catheter |
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| CN (1) | CN211434684U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111012999A (en) * | 2019-12-18 | 2020-04-17 | 四川海汇药业有限公司 | Small-diameter balloon catheter and manufacturing method thereof |
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2019
- 2019-12-18 CN CN201922293004.4U patent/CN211434684U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111012999A (en) * | 2019-12-18 | 2020-04-17 | 四川海汇药业有限公司 | Small-diameter balloon catheter and manufacturing method thereof |
| CN111012999B (en) * | 2019-12-18 | 2024-04-19 | 四川扬子江医疗器械有限公司 | Small-diameter balloon catheter and manufacturing method thereof |
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| TR01 | Transfer of patent right |
Effective date of registration: 20221107 Address after: Building 3 and 6, No. 2899, Section 4, Xihanggang Avenue, Shuangliu District, Chengdu, Sichuan 610000 Patentee after: Sichuan Yangzijiang Medical Instrument Co.,Ltd. Address before: No. 2899, section 4, xihanggang Avenue, Shuangliu District, Chengdu, Sichuan 610000 Patentee before: SICHUAN HAIHUI PHARMACEUTICAL CO.,LTD. Patentee before: SICHUAN HAIRONG PHARMACEUTICAL CO., LTD., YANGTZE RIVER PHARMACEUTICAL Group |