CN114225188A - Internal imaging catheter for reducing artifacts - Google Patents

Internal imaging catheter for reducing artifacts Download PDF

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Publication number
CN114225188A
CN114225188A CN202111679377.0A CN202111679377A CN114225188A CN 114225188 A CN114225188 A CN 114225188A CN 202111679377 A CN202111679377 A CN 202111679377A CN 114225188 A CN114225188 A CN 114225188A
Authority
CN
China
Prior art keywords
guide wire
catheter
imaging
internal imaging
cavity
Prior art date
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.)
Pending
Application number
CN202111679377.0A
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Chinese (zh)
Inventor
鄢志兵
司阳光
李翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Acoustic Life Science Co ltd
Original Assignee
Acoustic Life Science Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Acoustic Life Science Co ltd filed Critical Acoustic Life Science Co ltd
Priority to CN202111679377.0A priority Critical patent/CN114225188A/en
Publication of CN114225188A publication Critical patent/CN114225188A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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 pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/02007—Evaluating blood vessel condition, e.g. elasticity, compliance
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
    • A61B8/0891—Detecting organic movements or changes, e.g. tumours, cysts, swellings for diagnosis of blood vessels
    • 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
    • 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
    • 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

Abstract

The invention discloses an internal imaging catheter for reducing artifacts, comprising: a conduit comprising a first end and a second end; the first end is provided with a guide wire cavity for penetrating a guide wire, one end of the guide wire cavity is arranged on the end face of the first end, and the other end of the guide wire cavity penetrates out of the side wall of the first end. The second end is provided with the formation of image chamber, and formation of image chamber and seal wire chamber set up respectively at the both ends of pipe, and mutually independent setting, and both insides do not switch on. The inside in formation of image chamber is provided with interior formation of image probe, and the outside cover of pipe second end is equipped with the expandable sacculus, and formation of image chamber and inside intercommunication of sacculus, accessible formation of image chamber realize the expansion of sacculus to the inside injection liquid of sacculus. The inner imaging probe can perform inner imaging scanning inside the balloon, the inner imaging probe can be closer to the actual scanning position, and the arrangement position of the guide wire cavity has a certain distance with the balloon, so that the influence of guide wire artifacts on the inner imaging scanning result can be reduced, and the scanning accuracy is improved.

Description

Internal imaging catheter for reducing artifacts
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 internal imaging balloon catheter in the prior art, a catheter with double channels is selected to realize the combination of guide wire penetration and internal imaging scanning, and the internal imaging balloon catheter has the defects that the guide wire of the internal imaging balloon catheter must pass through the inside of the balloon and occupies one channel with a balloon filling cavity respectively, so that the outer diameter of the catheter is increased, and the internal imaging balloon catheter is limited to be used in smaller parts such as: coronary artery or severe stenosis. Moreover, the puncture of the guide wire in the balloon can generate artifacts, which affect the quality of internal imaging images and ensure the accuracy of observation.
Therefore, how to provide a small-sized internal imaging catheter for improving the observation accuracy is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
It is an object of the present invention to provide a small-sized internal imaging catheter with reduced artifacts with high observation accuracy.
To achieve the above object, the present invention provides an internal imaging catheter with reduced 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 a guide wire, and the guide wire cavity penetrates out of the end face of the first end to the side face of the first end; the second end is provided with an imaging cavity, and the imaging cavity and the guide wire cavity are mutually independently arranged;
the formation of image chamber is used for setting up interior formation of image probe, and the outer peripheral face cover of second end is equipped with the sacculus, and the formation of image chamber communicates with the inside of sacculus.
Optionally, the inner imaging probe is 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 internal imaging probe to realize internal imaging.
Optionally, the control handle is provided with an injection port for injecting the liquid.
Optionally, the control handle is provided with a sealing ring to prevent liquid from seeping out.
Against the above background, the present invention is provided with a catheter including a first end and a second end; the first end is provided with a guide wire cavity for penetrating a guide wire, one end of the guide wire cavity is arranged on the end face of the first end, namely the end face of the catheter, the other end of the guide wire cavity penetrates out of the side wall of the first end, and an operator can penetrate the guide wire into the guide wire cavity and make the guide wire penetrate out of the side face of the catheter.
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 interiors of the imaging cavity and the guide wire cavity are not conducted. The inside in above-mentioned formation of image chamber is provided with interior formation of image probe, and the outside cover of pipe second end is equipped with the expandable sacculus, above-mentioned formation of image chamber and the inside intercommunication of sacculus, and the operator accessible above-mentioned side window is to the inside liquid injection realization sacculus of sacculus expansion. The internal imaging probe can perform internal imaging scanning in the balloon, the internal imaging scanning in the balloon can enable the internal imaging probe to be closer to an actual scanning position, and the influence of artifacts generated by the guide wire on an internal imaging scanning result is reduced because the arrangement position of the guide wire cavity has a certain distance with the balloon, 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 used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a cross-sectional view of an internal imaging catheter with reduced artifacts provided by an embodiment of the present invention;
FIG. 2 is an external view of an internal imaging catheter and control handle with reduced artifacts provided by an embodiment of the present invention.
Wherein:
1-catheter, 2-guide wire cavity, 3-imaging cavity, 4-internal imaging probe, 5-balloon and 6-control handle.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to the specification, fig. 1 is a cross-sectional view of an internal imaging catheter with reduced artifacts according to an embodiment of the present invention, including: 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 inserting a guide wire, one end of the guide wire cavity 2 is arranged on the end surface of the first end, namely the end surface 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 insert the guide wire into the guide wire cavity 2 and lead the guide wire out to the side surface 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 communicated. The inside of above-mentioned formation of image chamber 3 is provided with interior formation of image probe 4, and the outside cover of pipe 1 second end is equipped with expandable sacculus 5, and above-mentioned formation of image chamber 3 accessible is not only limited to the side window of seting up through the lateral wall and the inside intercommunication of sacculus 5, and the operator accessible above-mentioned side window is to the inside liquid that injects of sacculus 5 realization sacculus 5's expansion. The internal imaging probe 4 can perform internal imaging scanning inside the balloon 5, the internal imaging scanning inside the balloon 5 is closer to an actual scanning position compared with the arrangement mode of the internal imaging probe 4 in the prior art, and because the arrangement position of the guide wire cavity 2 has a certain distance with the balloon 5, the influence of artifacts generated by the guide wire on the internal imaging scanning process is reduced, thereby increasing the scanning accuracy.
When the above-described internal imaging catheter with reduced artifacts 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 catheter 1 and penetrate out from the other end of the guide wire cavity 2, and the catheter 1 enters a target blood vessel along the guide wire; then, the physiological saline is injected into the imaging cavity 3, the physiological saline enters the balloon 5 through the side window and inflates and expands the balloon 5, then the internal imaging probe 4 in the imaging cavity 3 scans the inside of the blood vessel when the balloon 5 is inflated according to a control signal of an external control system, and the balloon 5 can be contracted and then scanned in the blood vessel.
Further, the inner imaging probe 4 can rotate and move in the imaging cavity 3 along the length direction thereof, 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 positions of the two ends of the balloon 5.
The internal imaging probe 4 may be implemented by using OCT (optical coherence tomography) probes or ultrasonic transducers, and it should be noted that when the ultrasonic transducer is used as the internal imaging device, liquid is required to be provided as a propagation medium.
Further, referring to fig. 2 of the drawings, fig. 2 is an external schematic view of the cooperation of the inner imaging catheter with the control handle for reducing the artifact according to the embodiment of the present invention, which includes: 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 catheter, and the control handle 6 is essentially used as a connecting device of the internal imaging probe 4, an external control system and a display device.
Further, the control handle 6 is provided with an injection port 61, and the injection port 61 is communicated with the imaging cavity 3. An operator can inject liquid into the balloon 5 through the injection port 61 to realize the expansion of the balloon 5 and provide a liquid transmission medium required for internal imaging for the internal imaging probe 4; for example, in the case that the internal imaging catheter for reducing the artifacts is applied to PCI surgery, the operator can inject physiological saline into the internal portion through the injection port 61, and the balloon 5 is expanded by the physiological saline to fill the inside of the imaging cavity 3 to cover the internal imaging probe 4, so as to serve as a transmission medium for the internal imaging probe 4, and the physiological saline is selected to avoid damage to the inside of the human body.
Further, a sealing ring is provided inside one end of the control handle 6, and the sealing ring is used for preventing the liquid entering the control handle 6 from the injection port 61 from seeping out of the control handle 6, so that the external equipment is affected.
It is noted that, in this specification, relational terms such as first and second, and the like 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 reduced artifact internal imaging catheter provided by the present invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (5)

1. An internal imaging catheter with reduced 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) for a guide wire to penetrate, and the guide wire cavity (2) penetrates out of the end face of the first end to the side face of the first end; the second end is provided with an imaging cavity (3), and the imaging cavity (3) and the guide wire cavity (2) are arranged independently;
imaging probe (4) in being used for setting up of formation of image chamber (3), the outer peripheral face cover of second end is equipped with sacculus (5), formation of image chamber (2) with the inside intercommunication of sacculus (5).
2. The reduced artifact internal imaging catheter as claimed in claim 1, wherein the internal imaging probe (4) is rotationally movable along a length of the imaging lumen (3).
3. The reduced artifact internal imaging catheter as claimed in claim 2, wherein a control handle (6) is connected to the catheter (1), the control handle (6) being configured to control the internal imaging probe (4) to perform internal imaging.
4. The reduced artifact internal imaging catheter as claimed in claim 3, wherein the control handle (6) is provided with an injection port (61) for injecting a liquid.
5. The reduced artifact internal imaging catheter according to any of claims 1-4, wherein the control handle (6) is provided with a sealing ring to prevent the fluid from oozing out.
CN202111679377.0A 2021-12-31 2021-12-31 Internal imaging catheter for reducing artifacts Pending CN114225188A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111679377.0A CN114225188A (en) 2021-12-31 2021-12-31 Internal imaging catheter for reducing artifacts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111679377.0A CN114225188A (en) 2021-12-31 2021-12-31 Internal imaging catheter for reducing artifacts

Publications (1)

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CN114225188A true CN114225188A (en) 2022-03-25

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CN202111679377.0A Pending CN114225188A (en) 2021-12-31 2021-12-31 Internal imaging catheter for reducing artifacts

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Citations (4)

* Cited by examiner, † Cited by third party
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
US20030229286A1 (en) * 1999-01-25 2003-12-11 Lenker Jay A. Resolution optical and ultrasound devices for imaging and treatment of body lumens
CN101208045A (en) * 2005-05-06 2008-06-25 威索诺瓦公司 Method and apparatus for endovascular device guiding and positioning
US20110077463A1 (en) * 2009-09-29 2011-03-31 Fujifilm Corporation Optical probe and endoscope apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
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
US20030229286A1 (en) * 1999-01-25 2003-12-11 Lenker Jay A. Resolution optical and ultrasound devices for imaging and treatment of body lumens
CN101208045A (en) * 2005-05-06 2008-06-25 威索诺瓦公司 Method and apparatus for endovascular device guiding and positioning
US20110077463A1 (en) * 2009-09-29 2011-03-31 Fujifilm Corporation Optical probe and endoscope apparatus

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