CN114225188B - An intra-imaging catheter with reduced artifacts - Google Patents
An intra-imaging catheter with reduced artifacts Download PDFInfo
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- CN114225188B CN114225188B CN202111679377.0A CN202111679377A CN114225188B CN 114225188 B CN114225188 B CN 114225188B CN 202111679377 A CN202111679377 A CN 202111679377A CN 114225188 B CN114225188 B CN 114225188B
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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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0062—Arrangements for scanning
- A61B5/0066—Optical coherence imaging
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- A61B5/02007—Evaluating blood vessel condition, e.g. elasticity, compliance
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/6852—Catheters
- A61B5/6853—Catheters with a balloon
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/08—Clinical applications
- A61B8/0891—Clinical applications for diagnosis of blood vessels
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
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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
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
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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
- A61M25/1018—Balloon inflating or inflation-control devices
- A61M25/10181—Means for forcing inflation fluid into the balloon
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- Heart & Thoracic Surgery (AREA)
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- Hematology (AREA)
- Vascular Medicine (AREA)
- Child & Adolescent Psychology (AREA)
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- Ultra Sonic Daignosis Equipment (AREA)
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Abstract
本发明公开了一种减少伪影的内成像导管，包括：导管，导管包括第一端和第二端；第一端设置有用于穿入导丝的导丝腔，导丝腔的一端设置在第一端的端面上，其另一端穿出至第一端的侧壁。第二端设置有成像腔，成像腔与导丝腔分别设置在导管的两端，且相互独立设置，两者内部不导通。成像腔的内部设置有内成像探头，导管第二端的外部套设有可扩张的球囊，成像腔与球囊内部连通，可通过成像腔向球囊内部注入液体实现球囊的扩张。内成像探头可在球囊内部进行内成像扫描，可使内成像探头更接近实际的扫描位置，又因为导丝腔的设置位置与球囊具有一定距离，如此设置可减少导丝伪影对内成像扫描结果的影响，从而增加扫描的准确性。
The present invention discloses an internal imaging catheter for reducing artifacts, comprising: a catheter, the catheter comprising a first end and a second end; the first end is provided with a guidewire cavity for inserting a guidewire, one end of the guidewire cavity is provided on the end surface of the first end, and the other end thereof passes through the side wall of the first end. The second end is provided with an imaging cavity, the imaging cavity and the guidewire cavity are respectively provided at the two ends of the catheter, and are provided independently of each other, and the two are not internally conductive. An internal imaging probe is provided inside the imaging cavity, an expandable balloon is provided on the outside of the second end of the catheter, the imaging cavity is connected to the inside of the balloon, and liquid can be injected into the balloon through the imaging cavity to achieve expansion of the balloon. The internal imaging probe can perform internal imaging scanning inside the balloon, which can make the internal imaging probe closer to the actual scanning position, and because the setting position of the guidewire cavity is at a certain distance from the balloon, such a setting can reduce the influence of the guidewire artifact on the internal imaging scanning result, thereby increasing the accuracy of the scanning.
Description
Technical Field
The invention relates to the field of internal imaging catheter equipment, in particular to an internal imaging catheter capable of reducing artifacts.
Background
In the prior art, the catheter with a double-lumen catheter is selected to realize the combination of guide wire penetration and internal imaging scanning, and the defect is that the guide wire must pass through the inside of the balloon and occupy one lumen with the filling lumen of the balloon respectively, so that the outer diameter of the catheter is increased, and the catheter is limited in smaller parts such as: coronary arteries or severely stenosed sites. In addition, the puncture of the guide wire in the balloon can generate artifacts, so that the quality of an internal imaging image is affected, and the accuracy of observation cannot be ensured.
Therefore, how to provide a small-sized internal imaging catheter with improved observation accuracy is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The object of the present invention is to provide an internal imaging catheter with high observation accuracy and small size and reduced artifacts.
To achieve the above object, the present invention provides an internal imaging catheter for reducing artifacts, comprising: a catheter, the catheter comprising: a first end and a second end; the first end is provided with a guide wire cavity for penetrating the guide wire, and the guide wire cavity penetrates from the end face of the first end to the side face of the guide wire cavity; the second end is provided with an imaging cavity, and the imaging cavity and the guide wire cavity are mutually independent;
The imaging cavity is used for setting an inner imaging probe, the balloon is sleeved on the outer peripheral surface of the second end, and the imaging cavity is communicated with the interior of the balloon.
Alternatively, the inner imaging probe may be rotationally movable along the length of the imaging lumen.
Optionally, the catheter is connected with a control handle, and the control handle is used for controlling the inner imaging probe to realize inner imaging.
Optionally, the control handle is provided with an injection port for injecting liquid.
Optionally, the control handle is provided with a sealing ring to prevent liquid from seeping out.
Against the background of the invention described above, the present invention provides a catheter comprising a first end and a second end; the first end is provided with the seal wire chamber that is used for penetrating the seal wire, and the terminal surface of above-mentioned seal wire chamber one end setting at first end, on the terminal surface of pipe promptly, the lateral wall to first end is worn out to the other end in seal wire chamber, and the operator can penetrate the seal wire in the seal wire chamber and make it wear out to the pipe side.
The second end is provided with an imaging cavity, the imaging cavity and the guide wire cavity are respectively arranged inside two ends of the catheter and are mutually independent, and the imaging cavity and the guide wire cavity are non-conductive. An inner imaging probe is arranged in the imaging cavity, an expandable balloon is sleeved outside the second end of the catheter, the imaging cavity is communicated with the interior of the balloon, and an operator can inject liquid into the balloon through the side window to realize the expansion of the balloon. The internal imaging probe can perform internal imaging scanning inside the balloon, and the internal imaging scanning inside the balloon can enable the internal imaging probe to be closer to the actual scanning position, and because the setting position of the guide wire cavity is a certain distance from the balloon, the influence of the artifact generated by the guide wire on the internal imaging scanning result is reduced, so that the scanning accuracy is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of an artifact reduction internal imaging catheter provided by an embodiment of the present invention;
FIG. 2 is an external schematic view of an inner imaging catheter with reduced artifacts mated to a control handle according to an embodiment of the present invention.
Wherein:
1-catheter, 2-guide wire cavity, 3-imaging cavity, 4-internal imaging probe, 5-saccule and 6-control handle.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The present invention will be further described in detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to better understand the aspects of the present invention.
Referring to fig. 1 of the drawings, fig. 1 is a cross-sectional view of an internal imaging catheter for reducing artifacts provided by an embodiment of the present invention, comprising: a conduit 1, the conduit 1 comprising a first end and a second end; the first end is provided with a guide wire cavity 2 for penetrating the guide wire, one end of the guide wire cavity 2 is arranged on the end face of the first end, namely the end face of the catheter 1, the other end of the guide wire cavity 2 penetrates out to the side wall of the first end, and an operator can penetrate the guide wire into the guide wire cavity 2 and make the guide wire penetrate out to the side face of the catheter 1.
The second end is provided with an imaging cavity 3, the imaging cavity 3 and the guide wire cavity 2 are respectively arranged in the two ends of the catheter 1 and are mutually independent, and the two are not conducted. The inside of the imaging cavity 3 is provided with an inner imaging probe 4, the outside of the second end of the catheter 1 is sleeved with an expandable balloon 5, the imaging cavity 3 can be communicated with the inside of the balloon 5 through a side window formed in the side wall, and an operator can inject liquid into the balloon 5 through the side window to expand the balloon 5. The internal imaging probe 4 can perform internal imaging scanning inside the balloon 5, and the internal imaging scanning inside the balloon 5 is closer to the actual scanning position than the internal imaging probe 4 in the prior art, and because the setting position of the guide wire cavity 2 is a certain distance from the balloon 5, the influence of the artifact generated by the guide wire on the internal imaging scanning process is reduced, thereby increasing the scanning accuracy.
When the above-described artifact-reducing internal imaging catheter is applied in PCI (percutaneous coronary intervention) surgery: an operator can penetrate a guide wire into the guide wire cavity 2 from the end surface of the guide wire 1 and penetrate out from the other port of the guide wire cavity 2, and the guide wire 1 enters a target blood vessel along the guide wire; then, normal saline is injected into the imaging cavity 3, the normal saline enters the balloon 5 through the side window and expands the balloon 5, then the internal imaging probe 4 in the imaging cavity 3 scans the blood vessel according to the control signal of the external control system while the balloon 5 is filled, and the balloon 5 can be contracted and then scanned.
Further, the inner imaging probe 4 can perform rotational movement along the length direction thereof inside the imaging cavity 3, the scanning range of the inner imaging probe 4 can be changed according to the following movement, and the movement limit position of the inner imaging probe 4 is the position of the two ends of the balloon 5.
The internal imaging probe 4 can be alternatively and not exclusively implemented by an OCT (optical interference tomography) probe or an ultrasonic transducer, and it should be noted that a liquid needs to be provided as a propagation medium when the ultrasonic transducer is used as the internal imaging device.
Further, referring to fig. 2 of the drawings, fig. 2 is an external schematic view of an inner imaging catheter with reduced artifacts and a control handle according to an embodiment of the present invention, including: the catheter 1 is connected with a control handle 6, the control handle 6 is communicated with the imaging cavity 3 and is used for connecting and controlling the internal imaging probe 4 inside the control handle 6, and the control handle 6 is essentially used as a connecting device of the internal imaging probe 4 and an external control system and a display device.
Further, the above-mentioned control handle 6 is provided with an injection port 61, and the injection port 61 communicates with the imaging chamber 3. The operator can inject liquid into the interior of the balloon 5 through the injection port 61 to realize the expansion of the balloon 5 and provide the inner imaging probe 4 with a liquid transmission medium required for inner imaging; for example, in the case that the internal imaging catheter for reducing the artifacts is applied to the PCI operation, the operator can inject the physiological saline into the internal imaging catheter through the injection port 61, expand the balloon 5 by using the physiological saline and fill the internal of the imaging cavity 3 to cover the internal imaging probe 4, and the internal imaging probe 4 is used as a transmission medium, and the physiological saline is selected to avoid the damage to the human body.
Further, a seal ring is provided inside one end of the control handle 6, and the seal ring is used for preventing liquid entering the control handle 6 from the injection port 61 from seeping out from the control handle 6, thereby affecting external equipment.
It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The present invention provides an internal imaging catheter with reduced artifacts described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (5)
1. An internal imaging catheter for reducing artifacts, comprising: a catheter (1), the catheter (1) comprising: a first end and a second end; the first end is provided with a guide wire cavity (2) used for penetrating a guide wire, and the guide wire cavity (2) penetrates out to the side surface of the end surface of the first end; the second end is provided with an imaging cavity (3), the imaging cavity (3) and the guide wire cavity (2) are respectively arranged in the two ends of the catheter (1), and the imaging cavity (3) and the guide wire cavity (2) are mutually independent;
The inside of formation of image chamber (3) sets up interior formation of image probe (4), the outer peripheral face cover of second end is equipped with sacculus (5), formation of image chamber (3) with the inside intercommunication of sacculus (5), the removal extreme position of interior formation of image probe (4) is the position at sacculus (5) both ends, formation of image chamber (3) lateral wall seted up with the side window of the inside intercommunication of sacculus (5).
2. The reduced-artifact inner imaging catheter according to claim 1, characterized in that the inner imaging probe (4) is rotationally movable along the length of the imaging lumen (3).
3. The reduced-artifact internal imaging catheter of claim 2, wherein the catheter (1) is connected to a control handle (6), the control handle (6) being used to control the internal imaging probe (4) to achieve internal imaging.
4. An internal imaging catheter with reduced artefacts as claimed in claim 3, characterized in that the control handle (6) is provided with an injection port (61) for injecting a liquid.
5. An internal imaging catheter with reduced artefacts as claimed in claim 4, characterised in that the control handle (6) is provided with a sealing ring to prevent exudation of the liquid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111679377.0A CN114225188B (en) | 2021-12-31 | 2021-12-31 | An intra-imaging catheter with reduced artifacts |
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| CN202111679377.0A CN114225188B (en) | 2021-12-31 | 2021-12-31 | An intra-imaging catheter with reduced artifacts |
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| CN114225188A CN114225188A (en) | 2022-03-25 |
| CN114225188B true CN114225188B (en) | 2024-11-22 |
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| CN114983521B (en) * | 2022-06-10 | 2025-08-29 | 飞依诺科技股份有限公司 | Shock wave lithotripsy catheter and shock wave lithotripsy catheter system having the same |
| CN115317072A (en) * | 2022-08-10 | 2022-11-11 | 深圳英美达医疗技术有限公司 | Intravascular imaging shock wave balloon catheter and medical equipment |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5327885A (en) * | 1991-10-08 | 1994-07-12 | Griffith James M | Combination catheter for invasive probe delivery and balloon dilation |
| JP3597219B2 (en) * | 1994-07-15 | 2004-12-02 | オリンパス株式会社 | Balloon sheath for ultrasonic probe |
| US7524289B2 (en) * | 1999-01-25 | 2009-04-28 | Lenker Jay A | Resolution optical and ultrasound devices for imaging and treatment of body lumens |
| ES2425388T3 (en) * | 2005-05-06 | 2013-10-15 | Vasonova, Inc. | Apparatus for guiding and positioning an endovascular device |
| US20110077463A1 (en) * | 2009-09-29 | 2011-03-31 | Fujifilm Corporation | Optical probe and endoscope apparatus |
| US20140163361A1 (en) * | 2012-12-12 | 2014-06-12 | Volcano Corporation | Combination Rotational and Phased-Array In Vivo Imaging Devices and Methods |
| WO2015057533A1 (en) * | 2013-10-14 | 2015-04-23 | Adagio Medical, Inc. | Endoesophageal balloon catheter, system, and related method |
| WO2015057961A1 (en) * | 2013-10-18 | 2015-04-23 | Boston Scientific Scimed, Inc. | Balloon catheters with flexible conducting wires and related methods of use and manufacture |
| CN113143315A (en) * | 2021-02-09 | 2021-07-23 | 深圳市赛禾医疗技术有限公司 | Intravascular ultrasonic imaging catheter and system with forward-looking capability |
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