CN113069671A - Sacculus pipe and medical intervention apparatus - Google Patents
Sacculus pipe and medical intervention apparatus Download PDFInfo
- Publication number
- CN113069671A CN113069671A CN202110323906.7A CN202110323906A CN113069671A CN 113069671 A CN113069671 A CN 113069671A CN 202110323906 A CN202110323906 A CN 202110323906A CN 113069671 A CN113069671 A CN 113069671A
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- CN
- China
- Prior art keywords
- balloon catheter
- distance
- drill
- tail part
- drill tail
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
- A61M29/02—Dilators made of swellable material
Abstract
The invention relates to the field of medical instruments, in particular to a balloon catheter and a medical interventional instrument. A balloon catheter comprises a catheter body, a balloon body and a drill tail part; the tail part of the drill is connected with the far end of the tube body, and the sac body is connected with the tube body and is adjacent to the tail part of the drill; the axis of the drill tail part is overlapped with the axis of the tube body, the distance from the outer peripheral surface of the drill tail part to the axis of the tube body is a first distance, and the maximum distance from the outer peripheral surface of the capsule body in a contraction state to the axis of the tube body is a second distance; wherein, from the distal end of body to the direction of its near-end, first distance is crescent, and bores the first distance of tail portion near-end and equals the second distance. The balloon catheter can expand the position of a stenotic lesion to allow the balloon catheter to pass through smoothly, thereby ensuring the effect of interventional therapy.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a balloon catheter and a medical interventional instrument.
Background
In the prior art, when a balloon catheter is used for interventional therapy of arterial stenosis, the passing condition of the balloon catheter can be influenced by the calcified stenotic lesion position in an artery, and then the treatment effect is influenced.
Disclosure of Invention
The invention aims to provide a balloon catheter and a medical interventional instrument, which can expand the position of a narrow lesion through the rotation of the balloon catheter so as to ensure the smooth passing of the balloon catheter and further ensure the effect of interventional therapy.
Embodiments of the invention may be implemented as follows:
in a first aspect, the present invention provides a balloon catheter, comprising a tube body, a balloon body and a drill tail;
the tail part of the drill is connected with the far end of the tube body, and the sac body is connected with the tube body and is adjacent to the tail part of the drill;
the axis of the drill tail part is overlapped with the axis of the tube body, the distance from the outer peripheral surface of the drill tail part to the axis of the tube body is a first distance, and the maximum distance from the outer peripheral surface of the capsule body in a contraction state to the axis of the tube body is a second distance; wherein, from the distal end of body to the direction of its near-end, first distance is crescent, and bores the first distance of tail portion near-end and equals the second distance.
In an optional embodiment, along the extending direction of the pipe body, the drill tail part comprises a body and a plurality of blade bodies convexly arranged on the body, the blade bodies are sequentially arranged at intervals around the extending direction of the pipe body, and the side walls, close to each other, of any two adjacent blade bodies and the drill tail part jointly define a guide groove.
In an alternative embodiment, each guide groove is disposed to be curved along the extending direction of the pipe body.
In an alternative embodiment, the surfaces of the plurality of blade bodies facing away from the axis of the tube body are all arc-shaped surfaces arranged around the axis of the tube body.
In an optional embodiment, the drill tail is a cone, and a plurality of grooves are formed in the outer circumferential surface of the cone along the extension direction of the pipe body.
In an alternative embodiment, the tubular body comprises an inner tube and an outer tube; the outer pipe is sleeved on the inner pipe, and the far end of the inner pipe is positioned outside the outer pipe and is connected with the drill tail part; the distal end of the outer tube is connected with the balloon.
In an alternative embodiment, the drill tail is integrally formed with the inner tube.
In an optional embodiment, along the extending direction of the pipe body, the outer peripheral surface of the drill tail part is provided with a plurality of grooves.
In a second aspect, the present invention provides a medical intervention instrument comprising the balloon catheter described above.
The beneficial effects of the embodiment of the invention include, for example:
the balloon catheter comprises a catheter body, a balloon body and a drill tail part; the tail part of the drill is connected with the far end of the tube body, and the sac body is connected with the tube body and is adjacent to the tail part of the drill; the axis of the drill tail part is overlapped with the axis of the tube body, the distance from the outer peripheral surface of the drill tail part to the axis of the tube body is a first distance, and the maximum distance from the outer peripheral surface of the capsule body in a contraction state to the axis of the tube body is a second distance; wherein, from the distal end of body to the direction of its near-end, first distance is crescent, and bores the first distance of tail portion near-end and equals the second distance.
The first distance is gradually increased from the far end of the tube body to the near end of the tube body, so that the drill tail part is gradually increased from the far end of the tube body to the near end of the tube body, when the drill tail part moves to a narrow pathological change position in an artery, the drill tail part can be driven by the balloon to rotate relative to the narrow pathological change position, and then the drill tail part gradually extends into the narrow pathological change position, so that the drill tail part can expand the narrow pathological change position, and the first distance at the near end of the drill tail part is equal to the second distance, so that the rest part of the balloon catheter can smoothly pass through the narrow pathological change position. Therefore, the balloon catheter can expand the position of a narrow lesion through the rotation of the balloon catheter so as to be smoothly passed through by the balloon catheter, and the interventional therapy effect is further ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of a balloon catheter in accordance with an embodiment of the present invention with the balloon in a deflated state;
fig. 2 is a schematic structural diagram of a balloon catheter in an inflated state according to an embodiment of the invention.
Icon: 200-a balloon catheter; 210-a tube; 220-capsule body; 230-drilling the tail; 231-a blade body; 232-a guide groove; 211-an inner tube; 212-outer tube.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Referring to fig. 1 and 2, fig. 1 and 2 are schematic structural views of a balloon catheter according to an embodiment of the present invention; the present embodiment provides a balloon catheter 200, the balloon catheter 200 includes a tube 210, a balloon 220 and a drill tail 230;
the drill tail 230 is connected to the distal end of the barrel 210, and the balloon 220 is connected to the barrel 210 and adjacent to the drill tail 230;
the axis of the drill tail 230 coincides with the axis of the tube 210, the distance from the outer circumferential surface of the drill tail 230 to the axis of the tube 210 is a first distance, and the distance from the outer circumferential surface of the balloon 220 to the axis of the tube 210 is a second distance; wherein the first distance gradually increases from the distal end of the tube 210 to the proximal end thereof, and the first distance at the proximal end of the drilling tail 230 is equal to the second distance at the distal end of the balloon 220.
It should be noted that, first, the terms "distal end", "proximal end", etc. are used throughout this specification for better understanding of the present disclosure, and are not to be construed as limiting the present disclosure. Generally, during use of the balloon catheter 200, the front end portion of the balloon catheter 200 (referred to as the left end of the balloon catheter 200 in the relative position of fig. 1) will extend into the human body, while the structure at the rear end portion of the balloon catheter 200 (referred to as the right end of the balloon catheter 200 in the relative position of fig. 1) or the structure connected to the rear end portion of the balloon catheter 200 will remain outside the human body for the medical staff to operate. Thus, "distal" may be understood as a feature or component of the balloon catheter 200 that is relatively close to the anterior portion of the body, and "proximal" may be understood as a feature or component of the balloon catheter 200 that is relatively close to the posterior portion of the body. Of course, when it is not explicitly indicated which part or component is "proximal" or "distal", the default designation is the proximal or distal end of the entire balloon catheter 200.
Secondly, in this embodiment, since the first distance gradually increases from the distal end to the proximal end of the tube 210, the outer contour of the drill tail 230 gradually increases from the distal end to the proximal end of the tube 210, when the drill tail 230 moves to the stenotic lesion position in the artery, the balloon 220 can drive the drill tail 230 to rotate relative to the stenotic lesion position, so that the drill tail 230 gradually extends into the stenotic lesion position, and the drill tail 230 can expand the stenotic lesion position, so that the drill tail 230 functions to gradually extend into the stenotic lesion position by rotating, and further expand the stenotic lesion position; further, when the drill tail 230 expands the stenotic lesion position, it gradually extends into the lesion tissue in a rotating manner, so that the expanded stenotic lesion position is adapted to a rotating area formed by the rotation of the drill tail 230, and the rotating area of the drill tail 230 is a circular channel formed by a first distance of the proximal end thereof, so that the balloon 220 can pass through the stenotic lesion position, so that the first distance of the proximal end of the drill tail 230 is equal to the second distance, and the balloon catheter 200 can smoothly pass through the stenotic lesion position to complete interventional therapy;
next, in the present embodiment, when the drill tail portion 230 and the capsule 220 are disposed, the outer circumferential surface of the drill tail portion 230 and the outer circumferential surface of the capsule 220 may be regular or irregular. Thus, when the drill tail 230 is conical in shape, the outer diameter of the drill tail 230 gradually increases from the distal end of the barrel 210 to the proximal end thereof.
The working principle of the balloon catheter 200 is as follows:
the balloon catheter 200 comprises a tube 210, a balloon 220 and a drill tail 230; the drill tail 230 is connected to the distal end of the barrel 210, and the balloon 220 is connected to the barrel 210 and adjacent to the drill tail 230; the axis of the drill tail 230 coincides with the axis of the tube 210, the distance from the outer circumferential surface of the drill tail 230 to the axis of the tube 210 is a first distance, and the maximum distance from the outer circumferential surface of the balloon 220 in the contracted state to the axis of the tube 210 is a second distance; wherein, in the direction from the distal end to the proximal end of the tube 210, the first distance gradually increases, and the first distance at the proximal end of the drill tail 230 is equal to the second distance.
Wherein, since the first distance gradually increases from the distal end of the tube 210 to the proximal end thereof, the drill tail portion 230 gradually increases from the distal end of the tube 210 to the proximal end thereof, when the drill tail portion 230 moves to the stenotic lesion position in the artery, the drill tail portion 230 can be driven by the balloon to rotate relative to the stenotic lesion position, so that the drill tail portion 230 gradually extends into the stenotic lesion position, and the drill tail portion 230 can expand the stenotic lesion position, and since the first distance of the proximal end of the drill tail portion 230 is equal to the second distance, the outer circumferential surface of the proximal end of the drill tail portion 230 is close to the outer circumferential surface of the distal end of the balloon 220 in size, so that the rest of the balloon catheter 200 can smoothly pass through the stenotic lesion position. Therefore, the balloon catheter 200 can expand the position of the stenotic lesion through the rotation of the balloon catheter 200 so that the balloon catheter 200 can pass through smoothly, and the interventional therapy effect is further ensured.
Further, in the present embodiment, in order that the balloon 220 gradually passes through the stenotic lesion as the drill tail 230 extends into the stenotic lesion when the drill tail 230 rotates and extends into the stenotic lesion, one end of the drill tail 230 facing the balloon 220 abuts against the balloon 220.
Further, in the embodiment of the present invention, when the drill tail portion 230 is provided, in order to enable the drill tail portion 230 to extend into a stenotic lesion in an artery by rotating, there are various embodiments; in this embodiment, the drill tail 230 includes a body and a plurality of blade bodies 231 protruding from the body from the distal end of the tube 210 to the proximal end thereof, the blade bodies 231 are sequentially spaced around the tube 210, and the adjacent side walls of any two adjacent blade bodies 231 and the drill tail 230 define a guide groove 232.
Since the axis of the drill tail 230 coincides with the axis of the tube 210 and the first distance gradually increases from the distal end of the tube 210 to the proximal end thereof, the distance from the outer circumferential surfaces of the plurality of blade bodies 231 to the axis of the drill tail 230 gradually increases along the direction from the distal end of the tube 210 to the proximal end thereof, so that the drill tail can gradually extend into the stenotic lesion, and the friction force when contacting the stenotic lesion can be increased by the guide groove 232 between the blade bodies 231, thereby increasing the efficiency of the drill tail 230 extending into the stenotic lesion.
And when setting up the sword body 231, the face that a plurality of sword bodies 231 deviate from the axis of body 210 is the arcwall face around the axis setting of body 210 to can also make the equal crooked setting of the lateral wall that is close to each other of arbitrary two adjacent sword bodies 231, so that every guide slot 232 all sets up along the extending direction of body 210 is crooked, thereby increase the stress variation when boring tail 230 gets into narrow pathological change position, in order to avoid appearing the stifled condition of card, thereby accelerate the efficiency that bores tail 230 and stretch into narrow pathological change position.
In the present embodiment, the tube 210 includes an inner tube 211 and an outer tube 212; wherein, the outer tube 212 is sleeved on the inner tube 211, and the distal end of the inner tube 211 is located outside the outer tube 212 and connected with the drill tail 230; the distal end of outer tube 212 is connected to balloon 220.
Further, in other embodiments of the present invention, the drill tail 230 is a cone, and the outer circumference of the cone is provided with a plurality of grooves along the extending direction of the tube 210, so as to form the guide groove 232 in the above description. The cone is arranged on the same principle as the drill tail 230, and therefore, the description thereof is omitted.
Further, in the present embodiment, the drill tail 230 is fixedly connected with the inner tube 211; in other embodiments of the present invention, the drill tail 230 may be integrally formed with the inner tube 211 to increase the stability of the drill tail 230. And a plurality of grooves are formed on the outer circumferential surface of the drill tail portion 230 along the extending direction of the tube body 210.
Based on the above, the present invention also provides a medical interventional device, which comprises the balloon catheter 200 and an external operation device, the medical interventional instrument works on the principle that the balloon catheter 200 is operated by an external operation device, to drive the balloon catheter 200 to move within the patient's blood vessel, and to control the inflation state of the balloon 220 so that the balloon 220 is in an expanded or contracted state, and drives the drill tail portion 230 to rotate in the blood vessel of the patient, so that the drill tail portion 230 gradually extends into the narrow lesion position in the blood vessel, and further, the drill tail portion 230 can expand the stenotic lesion, and since the first distance of the proximal end of the drill tail portion 230 is equal to the second distance, the outer circumferential surface of the proximal end of the drill tail portion 230 is close to the outer circumferential surface of the distal end of the balloon 220, so that the rest of the balloon catheter 200 can smoothly pass through the stenotic lesion. Therefore, the medical interventional instrument can expand the position of a narrow lesion through the rotation of the balloon catheter 200 so as to enable the balloon catheter 200 to pass through smoothly, and further ensure the effect of interventional therapy.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A balloon catheter characterized by:
the balloon catheter comprises a catheter body, a balloon body and a drill tail part;
the tail part of the drill is connected with the far end of the tube body, and the sac body is connected with the tube body and is adjacent to the tail part of the drill;
the axis of the drill tail part is overlapped with the axis of the pipe body, the distance from the outer peripheral surface of the drill tail part to the axis of the pipe body is a first distance, and the maximum distance from the outer peripheral surface of the capsule in a contracted state to the axis of the pipe body is a second distance; wherein, from the distal end of body to its proximal end direction, first distance increases gradually, and the first distance of brill tail portion proximal end equals the second distance.
2. The balloon catheter of claim 1, wherein:
the drill tail part is abutted against one end of the capsule facing the capsule.
3. The balloon catheter of claim 1, wherein:
along the extending direction of the pipe body, the drill tail part comprises a body and a plurality of blade bodies convexly arranged on the body, the blade bodies are sequentially arranged at intervals along the extending direction of the pipe body, and the side walls, close to each other, of any two adjacent blade bodies and the drill tail part jointly limit a guide groove.
4. A balloon catheter according to claim 3, wherein:
every the guide slot all follows the crooked setting of extending direction of body.
5. A balloon catheter according to claim 3, wherein:
the surfaces of the blade bodies, which are deviated from the axis of the tube body, are arc surfaces arranged around the axis of the tube body.
6. The balloon catheter of claim 1, wherein:
the tail of the drill is a cone, and a plurality of grooves are formed in the peripheral surface of the cone along the extending direction of the pipe body.
7. The balloon catheter of any one of claims 1-6, wherein:
the pipe body comprises an inner pipe and an outer pipe; the outer pipe is sleeved on the inner pipe, and the far end of the inner pipe is positioned outside the outer pipe and is connected with the drill tail part; the distal end of the outer tube is connected with the balloon.
8. The balloon catheter of claim 7, wherein:
the drill tail part and the inner pipe are integrally manufactured.
9. The balloon catheter of claim 8, wherein:
along the extending direction of the pipe body, a plurality of grooves are formed in the peripheral surface of the drill tail.
10. A medical intervention device, characterized by:
the medical intervention device comprises a balloon catheter as defined in any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110323906.7A CN113069671A (en) | 2021-03-25 | 2021-03-25 | Sacculus pipe and medical intervention apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110323906.7A CN113069671A (en) | 2021-03-25 | 2021-03-25 | Sacculus pipe and medical intervention apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113069671A true CN113069671A (en) | 2021-07-06 |
Family
ID=76610387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110323906.7A Pending CN113069671A (en) | 2021-03-25 | 2021-03-25 | Sacculus pipe and medical intervention apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113069671A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4936845A (en) * | 1987-03-17 | 1990-06-26 | Cordis Corporation | Catheter system having distal tip for opening obstructions |
| US5112345A (en) * | 1990-12-17 | 1992-05-12 | Interventional Technologies | Atherectomy cutter with arcuate blades |
| US6258108B1 (en) * | 1996-09-13 | 2001-07-10 | Interventional Technologies, Inc. | Incisor-dilator with tapered balloon |
| US20030144677A1 (en) * | 2002-01-25 | 2003-07-31 | Lary Banning Gray | Reciprocating cutting and dilating balloon |
| US20120209176A1 (en) * | 2011-02-09 | 2012-08-16 | Boston Scientific Scimed, Inc. | Balloon catheter |
| CN202409811U (en) * | 2011-12-05 | 2012-09-05 | 郑晔 | Novel spiral bit type artery balloon dilatation catheter |
-
2021
- 2021-03-25 CN CN202110323906.7A patent/CN113069671A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4936845A (en) * | 1987-03-17 | 1990-06-26 | Cordis Corporation | Catheter system having distal tip for opening obstructions |
| US5112345A (en) * | 1990-12-17 | 1992-05-12 | Interventional Technologies | Atherectomy cutter with arcuate blades |
| US6258108B1 (en) * | 1996-09-13 | 2001-07-10 | Interventional Technologies, Inc. | Incisor-dilator with tapered balloon |
| US20030144677A1 (en) * | 2002-01-25 | 2003-07-31 | Lary Banning Gray | Reciprocating cutting and dilating balloon |
| US20120209176A1 (en) * | 2011-02-09 | 2012-08-16 | Boston Scientific Scimed, Inc. | Balloon catheter |
| CN202409811U (en) * | 2011-12-05 | 2012-09-05 | 郑晔 | Novel spiral bit type artery balloon dilatation catheter |
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| PB01 | Publication | ||
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Application publication date: 20210706 |