CN111228634B - Adjustable sacculus pipe - Google Patents
Adjustable sacculus pipe Download PDFInfo
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- CN111228634B CN111228634B CN202010106518.9A CN202010106518A CN111228634B CN 111228634 B CN111228634 B CN 111228634B CN 202010106518 A CN202010106518 A CN 202010106518A CN 111228634 B CN111228634 B CN 111228634B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1002—Balloon catheters characterised by balloon shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1011—Multiple balloon catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1018—Balloon inflating or inflation-control devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1025—Connections between catheter tubes and inflation tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1002—Balloon catheters characterised by balloon shape
- A61M2025/1004—Balloons with folds, e.g. folded or multifolded
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1011—Multiple balloon catheters
- A61M2025/1013—Multiple balloon catheters with concentrically mounted balloons, e.g. being independently inflatable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M2025/1043—Balloon catheters with special features or adapted for special applications
- A61M2025/1079—Balloon catheters with special features or adapted for special applications having radio-opaque markers in the region of the balloon
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Child & Adolescent Psychology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses an adjustable balloon catheter which comprises a joint, a catheter, a balloon, a liquid-gas channel and a traction system, wherein the joint is fixedly arranged at the tail end of the catheter, the balloon is sleeved at the front end of the catheter and comprises a balloon ring and a developing ring, the balloon ring can be filled independently, the developing ring is arranged at the boundary of the balloon ring on the catheter, the liquid-gas channel is arranged in the joint and the catheter, the liquid-gas channel corresponds to the balloon ring one by one, and the traction system consists of a rocker device, a traction tube, a plurality of traction wires and a plurality of traction channels. The balloon catheter can be bent at any angle at the front end of the balloon catheter, particularly at any angle of the balloon part, can fully adapt to the characteristic of human blood vessel tortuosity, improves the trafficability of the balloon catheter, reduces the probability of causing blood vessel injury, can perform targeted expansion according to the shape of the blood vessel, and has clinical application value.
Description
Technical Field
The invention relates to the field of balloon catheters, in particular to an adjustable balloon catheter.
Background
Arteriosclerotic obliteration is a common disease of middle-aged and old people, the incidence rate of the arteriosclerotic obliteration is about 0.74 percent, and the main manifestations are that systemic arterial intima and media of blood vessels are degenerative and proliferative changes, so that the vessel wall is thickened, the inner diameter of the blood vessel is reduced, the elasticity of the blood vessel is reduced and even lost, thrombus is formed, the normal flow of blood is blocked, and finally, the acronecrosis of a patient is caused, and the health is seriously damaged.
Percutaneous balloon angioplasty is a well-established method for treating arteriosclerotic nasal obstruction. The balloon-inflated catheter used generally consists of two main parts, a balloon and a catheter, the balloon being attached to the outer surface of the catheter. The front end of the balloon catheter is fixed with a metal mark and matched with a guide wire, the balloon catheter reaches a diseased part under the guidance of X-rays, physiological saline or gas is injected into a gap of the sleeve to expand the balloon and extrude the narrow part, so that the purpose of expanding blood vessels and recirculating blood can be achieved, and the arteriosclerotic occlusive disease is treated to a certain extent. In order to prevent reocclusion after blood vessel expansion, a drug balloon catheter has been developed in recent years, that is, paclitaxel, rapamycin or other drugs are sprayed on the surface of the balloon, and the drugs are released to the blood vessel wall of the lesion part through the contact between the balloon and the blood vessel wall during balloon expansion, so as to achieve more ideal therapeutic effect.
However, the existing balloon catheter has poor trafficability because the catheter attached to the balloon portion at the front end is usually made of a uniform material, has strong axial tension, and cannot be adjusted according to the bending form of the blood vessel and the stenosis; in practical clinical application, when a balloon catheter enters a tortuous blood vessel to perform angioplasty, damage to a healthy blood vessel near a lesion part is inevitable due to the stress of the balloon and the catheter. Meanwhile, in the existing balloon catheter, the balloon is usually an integral body made of silica gel or other materials with certain compliance, and saline or gas is injected from the distal end of the catheter, so that the balloon is inflated integrally due to pressure. The stenotic lesion usually has no continuity, but presents the characteristic of fluctuation and interruption, so that in the effective action range of the balloon, part of blood vessels need to be expanded, while the other part of blood vessels do not need to be expanded, while the existing balloon cannot realize targeted filling, the incomplete expansion can be caused, the treatment effect is influenced, or the blood vessels can be damaged due to over expansion.
Therefore, those skilled in the art have made efforts to develop a balloon catheter which has good passability and less possibility of damaging a healthy blood vessel and can perform targeted dilatation according to the shape of the blood vessel.
Disclosure of Invention
In view of the above defects of the prior art, the technical problems to be solved by the invention are that the prior balloon catheter has poor trafficability, has high probability of damaging healthy blood vessels, and cannot perform targeted expansion on specific lesions.
In order to achieve the above object, the present invention provides an adjustable balloon catheter, including a connector, a catheter, a balloon, a liquid-gas channel, and a traction system, wherein the connector is fixedly disposed at a tail end of the catheter, the balloon is sleeved at a front end of the catheter, the balloon includes balloon rings and developing rings, the balloon rings correspond to the developing rings one by one, the developing rings are disposed at a boundary of the balloon rings of the catheter, the liquid-gas channel is disposed in a wall of the catheter and the connector, one end of the liquid-gas channel is disposed on an outer end surface of the connector, the other end of the liquid-gas channel communicates with the balloon rings, one of the liquid-gas channel communicates with only one of the balloon rings, the balloon rings are configured to inflate the corresponding balloon ring from an initial state to an inflated state when liquid or/and gas are injected through one end of the liquid-gas channel, when the liquid or/and the gas are removed, the balloon returns to the initial state.
Furthermore, the number of the balloon rings is more than or equal to 2, the balloon rings are independent from each other, and different balloon rings are sequentially arranged in the direction of the central axis of the catheter.
Furthermore, the liquid-gas channels are mutually independent and are uniformly arranged on a circumference which takes the central axis of the conduit as the center of a circle.
Further, the traction system comprises a rocker device, a traction tube, a traction wire and a traction channel, wherein the first end of the traction tube is fixedly connected with the guide tube, the second end of the traction tube is fixedly provided with the rocker device, the traction channel is fixedly arranged in the traction tube and the guide tube, one end of the traction channel is arranged on the second end face of the traction tube, the other end of the traction channel is arranged at the front end of the guide tube, the first end of the traction wire is connected with the rocker device, and the second end of the traction wire penetrates through the traction channel and is connected with the front end of the guide tube.
Furthermore, the number of the drawing wires is more than or equal to 3, and the drawing wires correspond to the drawing channels one to one.
Furthermore, the traction channels are independent from each other and are uniformly arranged on a circumference with the central axis of the conduit as the circle center, and the traction channels are not communicated with the liquid-gas channel.
Further, the rocker device includes grab handle, spherical cover, spherical fulcrum, dead lever, the spherical fulcrum is the spheroid, the dead lever is shaft-like component, dead lever one end with spherical fulcrum bottom fixed connection, the dead lever other end with the second terminal surface fixed connection of traction tube, the spherical cover is established spherical fulcrum top end side, the spherical cover with spherical fulcrum constitutes the sphere pair, the lower extreme cross-section of spherical cover with the first end fixed connection of traction wire, the first end of traction wire is in evenly distributed on the circumference of the lower extreme cross-section of spherical cover, the grab handle is fixed to be set up in on the spherical cover periphery.
Furthermore, the rocker device further comprises a protective pipe, the protective pipe is of a folding structure, the protective pipe is sleeved on the outer sides of the spherical fulcrum, the fixing rod and the traction wire, and two ends of the protective pipe are respectively fixedly connected with the spherical sleeve and the traction pipe.
Further, the protective tube is made of a high polymer material.
Further, the catheter portion provided with the balloon is made of a non-uniform material.
Compared with the prior art, the implementation of the invention achieves the following obvious technical effects:
1. can fully adapt to the characteristic of human blood vessel tortuosity, improves the trafficability of the balloon catheter, and reduces the probability of blood vessel injury caused in the balloon catheter process.
2. The balloon catheter can independently control the filling of the balloon ring and adjust the filling degree according to the shape of a stenotic lesion along the axial direction of the catheter, and performs targeted dilation treatment.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
FIG. 1 is a schematic view of an adjustable balloon catheter in accordance with a preferred embodiment of the present invention;
FIG. 2 is a schematic illustration of the liquid-gas passage and the traction passage of the embodiment of FIG. 1 of the present invention;
FIG. 3 is a schematic illustration of the traction system configuration of the embodiment of FIG. 1 in accordance with the present invention;
FIG. 4 is a schematic view of the rocker device of the embodiment of FIG. 1 of the present invention;
FIG. 5 is a schematic view of the rocker device of the embodiment of FIG. 1 shown with the sheath removed;
FIG. 6 is a schematic cross-sectional view of the catheter of the embodiment of FIG. 1 of the present invention in proximity to the balloon;
FIG. 7 is a schematic view of a balloon ring arrangement according to the embodiment of the invention shown in FIG. 1;
FIG. 8 is a schematic view of the balloon catheter of the embodiment of FIG. 1 of the present invention shown prior to inflation for application to a stenotic lesion;
FIG. 9 is a schematic view of the balloon catheter of the embodiment of FIG. 1 inflated to a stenotic lesion in accordance with the present invention;
FIG. 10 is a schematic view of a balloon catheter configuration according to another embodiment of the present invention;
FIG. 11 is a schematic view of the catheter configuration of the embodiment of FIG. 10 of the present invention;
FIG. 12 is a schematic view of the balloon structure of the embodiment of FIG. 10 of the present invention;
FIG. 13 is a schematic view of a development ring structure for the embodiment of the invention shown in FIG. 10.
The device comprises a joint 1, a catheter 2, a catheter 21, a catheter front end part, a traction system 3, a rocker device 31, a grab handle 311, a spherical sleeve 312, a spherical fulcrum 313, a fixing rod 314, a protective tube 315, a traction tube 32, a traction wire 33, a traction channel 34, a balloon 4, a balloon ring 41, a developing ring 42, a liquid-gas channel 5 and a cavity 8.
Detailed Description
The technical contents of the preferred embodiments of the present invention will be more clearly and easily understood by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments and the scope of the invention is not limited to the embodiments set forth herein.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.
Example 1:
as shown in fig. 1, the present embodiment provides an adjustable balloon catheter, which includes a connector 1, a catheter 2, a balloon 4, a liquid-gas channel 5, and a traction system 3, wherein the connector 1 is fixedly disposed at a tail end of the catheter 2, the balloon 4 is sleeved at a front end of the catheter 2, the balloon 4 includes balloon rings 41 and developing rings 42, the balloon rings 41 and the developing rings 42 are in one-to-one correspondence, the developing rings 42 are radiopaque, the developing rings 42 are disposed at a boundary of the balloon rings 41 on the catheter 2, and a region of the catheter 2 where the balloon 4 is disposed is made of a non-uniform material. As shown in fig. 2, the liquid-gas channel 5 is disposed in the tube wall of the joint 1 and the catheter 2, one end of the liquid-gas channel 5 is disposed on the outer end surface of the joint 1, the other end of the liquid-gas channel 5 is communicated with the balloon rings 41, one liquid-gas channel 5 is communicated with only one balloon ring 41, the liquid-gas channels 5 are independent from each other and are uniformly disposed on the circumference with the central axis of the catheter 2 as the center, the balloon rings 41 are configured such that when liquid or/and gas is injected through one end of the liquid-gas channel 5, the corresponding balloon ring 41 is inflated from the initial state to the inflated state, and when the liquid or/and gas is removed, the balloon 4 is restored to the initial state, and the adjustable balloon catheter realizes the bending adjustment of the catheter 2, particularly the balloon 4, through the traction system 3.
As shown in fig. 3, the traction system 3 includes a rocker device 31, a traction tube 32, a traction wire 33, and a traction channel 34, a first end of the traction tube 32 is fixedly connected with the conduit 2, a second end of the traction tube 32 is fixedly provided with the rocker device 31, the traction channel 34 is fixedly disposed in the traction tube 32 and the conduit 2, one end of the traction channel 34 is disposed on a second end surface of the traction tube 32, the other end of the traction channel 34 is disposed at a front end of the conduit 2, the number of the traction wires 33 is greater than or equal to 3, the traction wires 33 are in one-to-one correspondence with the traction channels 34, the traction channels 34 are independent of each other and uniformly disposed on a circumference with a central axis of the conduit 2 as a circle center, the traction channels 34 are not communicated with the liquid-gas channel 5, in this embodiment, the traction channels 34 are disposed outside the liquid-gas channel 5, the traction channels 34 are not communicated with the liquid-gas channel 5, as shown in fig. 6, the first end of the traction wire 33 is connected with the rocker device 31, the second end of the pull wire 33 is connected to the front end of the catheter 2 through the pull channel 34.
As shown in fig. 4 and 5, the rocker device 31 includes a handle 311, a spherical sleeve 312, a spherical fulcrum 313, a fixing rod 314, and a protection tube 315, fig. 5 is a structural schematic of the rocker device 31 with the protection tube 315 removed, the spherical fulcrum 313 is a sphere, the fixing rod 314 is a rod-shaped member, one end of the fixing rod 314 is fixedly connected with a bottom end of the spherical fulcrum 313, the other end of the fixing rod 314 is fixedly connected with a second end surface of the traction tube 32, the spherical sleeve 312 is sleeved on a top end side of the spherical fulcrum 313, the spherical sleeve 312 and the spherical fulcrum 313 constitute a spherical pair, a lower end section of the spherical sleeve 312 is fixedly connected with a first end of the traction wire 33, first ends of the traction wire 33 are uniformly distributed on a circumference of a lower end section of the spherical sleeve 312, the handle 311 is fixedly disposed on an outer circumference of the spherical sleeve 312, the protection tube 315 is of a folding structure made of polymer material, the protection tube 315 is sleeved on outer sides of the spherical fulcrum 313, the fixing rod 314 and the traction wire 33, the two ends of the sheath 315 are respectively fixedly connected with the spherical sheath 312 and the traction tube 32, and the sheath 315 can adjust the rocker device 31 while ensuring the tightness of the rocker device 31 and the traction system 3.
As shown in fig. 2 and 6, a through cavity 8 is arranged at the central axis of the joint 1 and the catheter 2, and the cavity 8 is used for matching with a guide wire or delivering other instruments.
The number of the pulling wires 33 is preferably 4 in the present embodiment, and for realizing the bending adjustment of the catheter 2, especially the balloon 4 at any angle, four pulling wires 6 and four pulling channels 7 are provided respectively, and only three pulling wires are shown in fig. 5 due to the angle problem. The rocker mechanism 31 will cause the pulling wire 33 to move together and thereby cause a corresponding bending of the catheter tip 21.
As shown in fig. 6, the number of balloon rings 41 is greater than or equal to 2, the balloon rings 41 are independent from each other, different balloon rings 41 are arranged in sequence in the direction of the central axis of the catheter 2, the number of the present embodiment is preferably 8, as shown in fig. 2, different liquid-gas channels 5 have different lengths, the number of the liquid-gas channels 5 is the same as the number of the balloon rings 41 shown in fig. 1, and the balloon rings 41 correspond to the balloon rings 41 one by one, and due to the angle relationship, only a part of the liquid-gas channels 5 is shown in fig. 2, and the filling of liquid or gas into a specific liquid-gas channel 5 will cause the corresponding balloon rings 41 to fill, so that the targeted dilatation therapy can be performed according to the shape of the stenotic lesion.
The portion of the catheter 2 in fig. 1 adjacent to the catheter tip 21 fitted with the balloon 4 is called the catheter tip, and the catheter tip is divided into different annular portions by the developing ring 42 and is spliced from materials having different flexibilities, so that the bending adjustment of the catheter tip and the catheter tip 21 is more easily performed when the traction system 3 is applied.
As shown in fig. 7, the balloon 4 is composed of a plurality of independent balloon rings 41, which can eliminate the tension along the axial direction of the catheter 2 when the common balloon is inflated to a certain extent, and can realize the bending adjustment of the balloon 4 more easily.
As shown in fig. 8, the balloon catheter is applied to a stenotic lesion with intermittent undulations, and the balloon catheter is schematically inflated.
As shown in fig. 9, in order to observe the shape of the stenotic lesion by radiography or other means, a specific one or more of the balloon rings 41 are inflated to perform targeted dilation, and the schematic diagram of the inflated balloon rings shows that the best therapeutic effect can be achieved after inflation, and the harm to the patient caused by excessive dilation of the blood vessel can be avoided.
The materials of the balloon rings 41 can be the same or different, and the adjustable balloon catheter can be subjected to conventional treatment such as drug loading, hydrophilic coating spraying and the like according to actual needs so as to improve the corresponding performance of the adjustable balloon catheter.
Example 2:
based on example 1, as shown in fig. 10. The structure of the catheter 2 and the structure of the liquid-gas channel 5 are shown in fig. 11 and fig. 12, the balloon 4 is of an integral structure made of a uniform material, the developing ring 42 is shown in fig. 13, the radiopaque developing ring 42 made of metal or other materials divides the balloon 4 into a plurality of parts and fixes the parts on the outer surface of the catheter 2, the developing ring 42 plays a marking role and simultaneously cuts off the axial communication of the balloon 4 along the catheter 2, and the axial tension of the balloon 4 during filling is decomposed, so that the catheter of the balloon 4 is easier to bend; because of the partition effect of the developing ring 42, the balloon 4 is divided into a plurality of mutually independent balloon rings 41, and the balloon can be expanded in a targeted manner according to the shape distribution of the stenotic lesion along the axial direction in practical application, so that the optimal treatment effect is achieved.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (8)
1. An adjustable balloon catheter is characterized by comprising a connector, a catheter, a balloon, a liquid-gas channel and a traction system, wherein the connector is fixedly arranged at the tail end of the catheter, the balloon is sleeved at the front end of the catheter, the catheter part provided with the balloon is made of non-uniform materials, the balloon comprises balloon rings and developing rings, the balloon rings are independent of one another and different from one another, the balloon rings are sequentially arranged in the direction of the central axis of the catheter, the balloon rings correspond to the developing rings one to one, the developing rings are arranged at the boundary of the balloon rings on the catheter, the liquid-gas channel is arranged in the connector and the catheter wall of the catheter, one end of the liquid-gas channel is arranged at the outer end face of the connector, the other end of the liquid-gas channel is communicated with the balloon rings, and one liquid-gas channel is communicated with only one balloon ring, the balloon rings are configured such that when a liquid or/and a gas is injected through one end of the liquid-gas channel, the corresponding balloon ring expands from an initial state to an inflated state, and when the liquid or/and the gas is removed, the balloon returns to the initial state; the traction system comprises a rocker device, a traction tube, a traction wire and a traction channel, wherein the first end of the traction tube is fixedly connected with the guide tube, the second end of the traction tube is fixedly provided with the rocker device, the traction channel is fixedly arranged in the traction tube and the guide tube, one end of the traction channel is arranged on the second end surface of the traction tube, the other end of the traction channel is arranged at the front end of the guide tube, the first end of the traction wire is connected with the rocker device, and the second end of the traction wire penetrates through the traction channel to be connected with the front end of the guide tube; the traction wire can realize the bending adjustment of the balloon at any angle.
2. The adjustable balloon catheter according to claim 1, wherein the number of balloon rings is 2 or greater.
3. The adjustable balloon catheter according to claim 2, wherein the liquid-gas channels are independent of each other and are evenly arranged on a circumference centered on a central axis of the catheter.
4. The adjustable balloon catheter according to claim 1, wherein the number of the pull wires is equal to or greater than 3, and the pull wires correspond to the pull channels one to one.
5. The adjustable balloon catheter according to claim 4, wherein the traction channels are independent of each other and are uniformly arranged on a circumference centered on a central axis of the catheter, and the traction channels are not communicated with the liquid-gas channel.
6. The adjustable balloon catheter according to claim 5, wherein the rocker device comprises a handle, a spherical sleeve, a spherical fulcrum, and a fixing rod, the spherical fulcrum is a sphere, the fixing rod is a rod-shaped member, one end of the fixing rod is fixedly connected to the bottom end of the spherical fulcrum, the other end of the fixing rod is fixedly connected to the second end surface of the traction tube, the spherical sleeve is sleeved on the top end side of the spherical fulcrum, the spherical sleeve and the spherical fulcrum form a spherical pair, the lower end section of the spherical sleeve is fixedly connected to the first end of the traction wire, the first ends of the traction wire are uniformly distributed on the circumference of the lower end section of the spherical sleeve, and the handle is fixedly disposed on the periphery of the spherical sleeve.
7. The adjustable balloon catheter according to claim 6, wherein the rocker device further comprises a protective tube, the protective tube is of a folding structure, the protective tube is sleeved outside the spherical fulcrum, the fixing rod and the traction wire, and two ends of the protective tube are fixedly connected with the spherical sleeve and the traction tube respectively.
8. The adjustable balloon catheter according to claim 7, wherein the sheath is made of a polymeric material.
Priority Applications (1)
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CN202010106518.9A CN111228634B (en) | 2020-02-21 | 2020-02-21 | Adjustable sacculus pipe |
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CN202010106518.9A CN111228634B (en) | 2020-02-21 | 2020-02-21 | Adjustable sacculus pipe |
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CN111228634A CN111228634A (en) | 2020-06-05 |
CN111228634B true CN111228634B (en) | 2022-03-29 |
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CN112057727A (en) * | 2020-09-16 | 2020-12-11 | 西安国际医学中心有限公司 | Possesses little regulation and control auxiliary catheter and pass through patient's tortuous blood vessel bullnose |
CN112618925B (en) * | 2021-01-13 | 2022-09-23 | 常州市第二人民医院 | Clinical catheter subassembly device of uropoiesis surgery |
CN114225187A (en) * | 2021-12-21 | 2022-03-25 | 深圳市慧极创新医疗科技有限公司 | Adjustable curved balloon dilatation catheter |
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CN101919737B (en) * | 2010-08-03 | 2012-07-11 | 安瑞医疗器械(杭州)有限公司 | Medical appliance for interventional treatment of gallbladder diseases |
CN102068749A (en) * | 2011-01-07 | 2011-05-25 | 上海硕创生物医药科技有限公司 | Novel muti-segment balloon dilatation catheter |
CN201996964U (en) * | 2011-03-09 | 2011-10-05 | 山东省立医院 | Sacculus expanding canal |
CN102380156A (en) * | 2011-08-25 | 2012-03-21 | 微创医疗器械(上海)有限公司 | Sectional type balloon expanding catheter |
CN103071230B (en) * | 2013-01-28 | 2014-12-03 | 湖南埃普特医疗器械有限公司 | Controllable bent guiding catheter and manufacture method thereof |
CN105942958B (en) * | 2016-05-30 | 2018-06-19 | 上海熠达光电科技有限公司 | Endoscope bent angle manipulates rocking bar and endoscope |
CN109419485A (en) * | 2017-08-25 | 2019-03-05 | 上海伴诚医疗科技有限公司 | One kind accurately controlling curved endoscope |
CN209060309U (en) * | 2017-11-03 | 2019-07-05 | 梁丽丽 | The sacculus dilating catheter for treating tuberculous bronchostenosis |
CN108578879B (en) * | 2018-05-17 | 2024-02-09 | 首都医科大学附属北京友谊医院 | Special catheter for children's reducing saccule dilating vascular stent |
CN109663202A (en) * | 2019-01-17 | 2019-04-23 | 南京普微森医疗科技有限公司 | A kind of novel cerebrovascular drug sacculus dilating catheter |
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