CN114587480A - Aorta blocking balloon device based on 18F-FDG detection and positioning - Google Patents
Aorta blocking balloon device based on 18F-FDG detection and positioning Download PDFInfo
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12027—Type of occlusion
- A61B17/12031—Type of occlusion complete occlusion
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12027—Type of occlusion
- A61B17/1204—Type of occlusion temporary occlusion
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
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- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/12136—Balloons
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- A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding
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Abstract
The invention belongs to the technical field of medical instruments, and particularly relates to an aorta occlusion balloon device based on 18F-FDG detection and positioning, which comprises a catheter; the front end of the catheter is provided with a saccule, an injection tube communicated with the saccule penetrates through the interior of the catheter, and the rear end of the catheter is provided with an injector communicated with the injection tube; the device can assist in determining the general anatomical position of the balloon in the body before aortic occlusion hemostasis is performed, and increases the success rate of disposable balloon occlusion, and has the advantages that firstly, the device has lower requirements on the technical capability and experience of first-aid practitioners, and can be mastered by simple training and then operating according to the program; secondly, the 18F-FDG is a common medical medicament, the availability and the medication cost can be controlled, and the corresponding handheld gamma ray detector for 18F-FDG detection has lower cost; thirdly, the technical operation procedure is simple, and the risk of additionally increasing the bleeding time is small; fourthly, 18F has short half-life and causes less secondary harm to patients.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to an aorta occlusion balloon device based on 18F-FDG detection and positioning.
Background
Alternative methods of aortic occlusion include direct clamping by emergency surgery and emergency endovascular balloon occlusion. The essential condition of direct clamping in emergency operation is hospital operating room treatment, and emergency endovascular balloon occlusion is the only currently available emergency technique under the condition of no unfolding operation before the hospital and the like.
In the process of implementing emergency treatment of endovascular balloon occlusion, a catheter and a balloon need to be guided into the lower section of an aorta deterministically, and in the prior art, the mode of determining the insertion position of the catheter and the balloon is to judge whether the implanted catheter enters the lower section of the aorta by a rapid ultrasonic mode, but the judgment mode has high requirements on operators and is difficult to judge, and even an experienced sonographer is often influenced by abdominal fat, intestinal gas accumulation and the like to cause misjudgment. The other mode for determining the balloon position is X-ray judgment, but the method is difficult to be carried out under the condition of out-of-hospital emergency; if the balloon is not released at the set position, the balloon cannot play an effective hemostatic effect and even can cause damage to tissues and organs.
Therefore, the invention provides an aorta occlusion balloon device based on 18F-FDG detection positioning.
Disclosure of Invention
To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention discloses an aorta occlusion balloon device based on 18F-FDG detection and positioning, which comprises a catheter; the front end of the catheter is provided with a balloon, the balloon consists of an elastic film, the surface of the elastic film is provided with a liquid outlet, an injection tube penetrates through the catheter, an annular partition plate is arranged between the end part of the injection tube close to the balloon and the inner wall of the catheter at the balloon, a flow guide cavity is formed among the partition plate, the injection tube and the catheter, the side wall of the injection tube corresponding to the inner side of the flow guide cavity is provided with a liquid outlet, the side wall of the catheter corresponding to the outer side of the flow guide cavity is provided with an opening communicated with the balloon, and the rear end of the catheter is provided with an injector communicated with the injection tube; in the process of implementing emergency treatment of endovascular balloon occlusion, a catheter and a balloon need to be guided into the lower section of an aorta deterministically, and in the prior art, the mode of determining the insertion position of the catheter and the balloon is to judge whether the implanted catheter enters the lower section of the aorta by a rapid ultrasonic mode, but the judgment mode has high requirements on operators and is difficult to judge, and even an experienced sonographer is often influenced by abdominal fat, intestinal gas accumulation and the like to cause misjudgment. The other mode for determining the balloon position is X-ray judgment, but the method is difficult to be carried out under the condition of out-of-hospital emergency; if the saccule is not released at the set position, not only the effective hemostasis effect cannot be achieved, but also the injury of tissues and organs can be caused; when the balloon blocking device is used, the catheter drives the balloon to move to the approximate position to be blocked, 18F-FDG liquid of 3-5 milliliters is injected into the injection tube through the injector firstly, so that the 18F-FDG liquid in the injection tube slightly swells after flowing into the balloon through the flow guide cavity, then the 18F-FDG liquid is released from a liquid outlet hole on the surface of the balloon and generates submerging with negative electrons of an organism to release gamma rays, then the gamma rays are captured by the handheld gamma ray detector to realize the positioning effect of the balloon, then after the position of the balloon is accurately adjusted, the liquid is supplemented into the balloon through the injection tube to 10 milliliters to realize the complete filling of the balloon, the fully swelled surface of the balloon is attached to the wall of a blood vessel, the blocking effect on the blood vessel can be realized, and the liquid outlet hole on the surface of the balloon can be blocked, the continuous outflow of the injection in the balloon is reduced, so that the work of the balloon can be stably and effectively carried out; the device can assist in determining the general anatomical position of the balloon in the body before aorta occlusion hemostasis is performed, increases the success rate of disposable balloon occlusion, effectively makes up the technical defects of ultrasonic positioning and X-ray radiation positioning, and has the following advantages that firstly, the requirements on the technical capability and experience of an emergency practitioner are low, and the emergency practitioner can master the situation according to program operation after simple training; secondly, the 18F-FDG is a common medical medicament, the availability and the medication cost can be controlled, and the corresponding handheld gamma ray detector for 18F-FDG detection has low cost and low cost; thirdly, the technical operation procedure is simple, the risk of additionally increasing the bleeding time is small, and fourthly, the half-life period of 18F is short, and the secondary injury to the patient is small.
Preferably, a guide wire tube penetrates through the injection tube, a guide wire body is arranged in the guide wire tube, the rear end of the guide wire body is led in from the rear end of the catheter, and the front end of the guide wire body penetrates out from the front end of the catheter and can be used for guiding the catheter to be placed into the lower aortic segment through the femoral artery; through having increased the seal wire structure on the pipe, strengthen the guide effect to pipe and sacculus through the seal wire, be favorable to reducing pipe and sacculus and advance the hard harm of vascular wall that the in-process probably caused.
Preferably, the number of the liquid outlets on the side wall of the injection tube is not less than two, and the liquid outlets are annularly and uniformly distributed on the side wall of the injection tube; through the quantity and the position that set up the liquid outlet for the inside injection liquid of injection syringe can be even fill inside the sacculus, thereby more even release in the sacculus can be followed to the injection liquid, improves the detection effect of follow-up sacculus position.
Preferably, the diameter of the catheter is 7-8F, the length of the catheter is 60-80cm, the distance between the balloon and the front end of the catheter is 8-12mm, the length of the balloon is 18-20mm, and the diameter of the balloon in the inflated state is not more than 50 mm; through the size that sets up pipe and sacculus, make it can more effectual be applicable to the patient, reduce the unexpected injury that pipe and sacculus caused the patient in the use, can closely laminate through the pipe wall of the sacculus wall when control is insufficient and the pipe wall of the pipe body simultaneously for the pipe can pass through the blood vessel smoothly, and the setting that reduces the sacculus leads to the pipe to cause the condition of blocking in the blood vessel.
Preferably, two ends of an elastic membrane forming the balloon are respectively connected with the partition plates on two sides of the flow guide cavity, an elastic body is arranged between the elastic membrane and the inner wall of the injection tube, and the surface of the elastic membrane is contracted inside the catheter when the elastic membrane is in an unfilled state; through the connection form of arranging the sacculus, when the catheter passes through in the blood vessel, the sacculus is received inside the catheter under the effect of the elastomer, and the condition that the sacculus protrudes to the outside of the catheter and influences the motion of the catheter in the blood vessel is further reduced.
Preferably, the elastic body is an elastic telescopic bag, the side wall of the telescopic bag is wave-shaped, the elastic body is connected to a liquid outlet on the side wall of the injection tube and communicated with the inside of the injection tube, and a plurality of shrinkage cavities are formed in the side wall of the telescopic bag; after filling into the injection liquid when the injection pipe is inside, its inside injection rate flows into the bellows earlier, make the bellows expand in extension after the topping up, thereby can be ejecting to the pipe outside with the elastic membrane, promote opening of play liquid hole on the elastic membrane, the inside injection liquid of bellows flows into the sacculus from shrinkage cavity and water conservancy diversion chamber afterwards, and can the efficient release, and the elastic membrane can more effectual laminate with the blood vessel wall under the effect of bellows, thereby can play more effectual blocking effect to the blood vessel, after the sacculus work finishes, through the pumpback injection, make the bellows reset in the shrink, can accomodate inside the pipe more effectual pulling elastic membrane, be convenient for the sacculus and take out from the blood vessel with the pipe.
Preferably, the middle part of the inner wall of the elastic membrane is connected with a flexible adsorption layer, the side wall of the injection tube corresponding to the adsorption layer is connected with a flexible magnetic layer, and the flexible magnetic layer can attract the adjacent adsorption layer; after the sacculus work finishes, the adsorption layer that the flexible bag drove on the elastic membrane in the in-process that resets is drawn close to flexible magnetic layer for flexible magnetic layer is through the attraction to the adsorption layer, promotes the elastic membrane more stable effectual accomodating inside the pipe.
Preferably, the liquid outlet hole is formed in the elastic membrane at the position of the adsorption layer, and the adsorption layer is provided with a flow guide hole communicated with the liquid outlet hole; when needs sacculus carries out the shutoff to the blood vessel, through the position that sets up out the liquid hole for behind the middle part that the elastic membrane ratio was bloated and the laminating of vascular wall, the vascular wall can carry out effectual shutoff to going out the liquid hole, reduces out the liquid hole because of setting up the border position at the elastic membrane, and the laminating that leads to elastic membrane and vascular wall is not real, and takes place the condition that the injection was revealed.
Preferably, the adsorption layer at the position of the diversion hole is connected with an arc-shaped plugging bag, the surface of the plugging bag is provided with a liquid leakage cavity, and the plugging bag is communicated with the shrinkage hole of the telescopic bag through a hose; when less injection is filled into the telescopic bag, the leakage cavity on the blocking bag is in an open state, so that the injection can penetrate through the leakage cavity and be released.
Preferably, one side of the flow guide hole, which is close to the blocking bag, is provided with an elastic blocking ball, and a pull rope is connected between the blocking ball and the side wall of the flow guide hole; the plugging bag can press the elastic plugging ball into the diversion hole in the expansion process, so that the diversion hole is more effectively closed, and the condition that the injection in the diversion cavity leaks to the outside of the catheter is further reduced.
The invention has the following beneficial effects:
1. the device can assist in determining the general anatomical position of the balloon in the body before aorta occlusion hemostasis is performed, increases the success rate of disposable balloon occlusion, effectively makes up the technical defects of ultrasonic positioning and X-ray radiation positioning, and has the following advantages that firstly, the requirements on the technical capability and experience of an emergency practitioner are low, and the emergency practitioner can master the situation according to program operation after simple training; secondly, the 18F-FDG is a common medical medicament, the availability and the medication cost can be controlled, and the corresponding handheld gamma ray detector for 18F-FDG detection has low cost and low cost; thirdly, the technical operation procedure is simple, the risk of additionally increasing the bleeding time is small, and fourthly, the half-life period of 18F is short, and the secondary injury to the patient is small.
2. After the injection liquid is filled into the injection tube, the injection liquid in the injection tube firstly flows into the telescopic bag, so that the telescopic bag expands after being filled with the injection liquid, the elastic membrane can be ejected out of the catheter, the liquid outlet hole in the elastic membrane is promoted to be opened, then the injection liquid in the telescopic bag flows into the balloon from the shrinkage hole and the flow guide cavity and can be efficiently released, the elastic membrane can be more effectively attached to the wall of the blood vessel under the action of the telescopic bag, and therefore, the blood vessel can be blocked more effectively.
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 embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a partial structural view of the interior of the catheter in the second embodiment;
in the figure: the device comprises a catheter 1, a balloon 2, an elastic membrane 3, an injection tube 4, a partition plate 5, a liquid outlet 6, an opening 7, an injector 8, a guide wire tube 9, a guide wire body 10, an elastic body 11, an adsorption layer 12, a flexible magnetic layer 13, a flow guide hole 14, a plugging bag 15, a liquid leakage cavity 16, a hose 17, a plugging ball 18 and a pull rope 19.
Detailed Description
The present invention will be further described with reference to the following detailed description so that the technical means, the creation features, the achievement purposes and the effects of the present invention can be easily understood. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-3, an aorta occlusion balloon 2 device based on 18F-FDG probing positioning according to an embodiment of the present invention includes a catheter 1; the front end of the catheter 1 is provided with a balloon 2, the balloon 2 consists of an elastic film 3, the surface of the elastic film 3 is provided with a liquid outlet, an injection tube 4 penetrates through the catheter 1, an annular partition plate 5 is arranged between the end part of the injection tube 4 close to the balloon 2 and the inner wall of the catheter 1 at the balloon 2, a flow guide cavity is formed among the partition plate 5, the injection tube 4 and the catheter 1, the side wall of the injection tube 4 corresponding to the inner side of the flow guide cavity is provided with a liquid outlet 6, the side wall of the catheter 1 corresponding to the outer side of the flow guide cavity is provided with an opening 7 communicated with the balloon 2, and the rear end of the catheter 1 is provided with an injector 8 communicated with the injection tube 4; in the process of implementing the blocking of the balloon 2 in the emergency blood vessel, the catheter 1 and the balloon 2 need to be guided into the lower section of the aorta deterministically, and the mode of determining the extending positions of the catheter 1 and the balloon 2 in the prior art is to judge whether the implanted catheter 1 enters the lower section of the aorta by a rapid ultrasonic mode, but the judgment mode has high requirements on operators and is difficult to judge, and even an experienced sonographer is often influenced by abdominal fat, intestinal gas accumulation and the like to cause misjudgment. While the other way to determine the position of the balloon 2 is X-ray judgment, the method is difficult to be carried out under the condition of emergency outside the hospital; if the saccule 2 is not released at the set position, not only the effective hemostasis effect cannot be achieved, but also the injury of tissues and organs can be caused; when the balloon blocking device 2 is used, 3-5 milliliters of 18F-FDG liquid is firstly injected into the injection tube 4 through the injector 8 when the catheter 1 drives the balloon 2 to move to the approximate position to be blocked, so that the balloon 2 is slightly bulged after the 18F-FDG liquid in the injection tube 4 flows into the balloon 2 through the diversion cavity, then the 18F-FDG liquid is released from a liquid outlet hole on the surface of the balloon 2 and is submerged with negative electrons of a body to release gamma rays, then the gamma rays are captured by the handheld gamma ray detector to realize the positioning effect of the balloon 2, then the balloon 2 is accurately adjusted in position, the liquid is filled into the balloon 2 to 10 milliliters through the injection tube 4 to realize the complete filling of the balloon 2, and the surface of the balloon 2 which is fully bulged is attached to a blood vessel wall, so that the balloon blocking effect can be realized on the blood vessel, the liquid outlet hole on the surface of the balloon 2 can be blocked, and the continuous outflow of the injection in the balloon 2 is reduced, so that the work of the balloon 2 can be stably and effectively carried out; the device can assist in determining the general anatomical position of the balloon 2 in the body before aorta occlusion hemostasis is performed, increases the success rate of the disposable balloon 2 occlusion, effectively makes up the technical defects of ultrasonic positioning and X-ray radiation positioning, and has the following advantages that firstly, the requirements on the technical capability and experience of first-aid performers are low, and the first-aid performers can master the first-aid performers according to program operation after simple training; secondly, the 18F-FDG is a common medical medicament, the availability and the medication cost can be controlled, and the corresponding handheld gamma ray detector for 18F-FDG detection has low cost and low cost; thirdly, the technical operation procedure is simple, the risk of additionally increasing the bleeding time is small, and fourthly, the half-life period of 18F is short, and the secondary injury to patients is small.
A guide wire tube 9 penetrates through the injection tube 4, a guide wire body 10 is arranged inside the guide wire tube 9, the rear end of the guide wire body 10 is led in from the rear end of the catheter 1, and the front end of the guide wire body 10 penetrates out from the front end of the catheter 1 and can be used for guiding the catheter 1 to be placed into the lower aortic segment through the femoral artery; through having increased the seal wire structure on pipe 1, strengthen the guide effect to pipe 1 and sacculus 2 through the seal wire, be favorable to reducing pipe 1 and sacculus 2 hard harm of vascular wall that probably causes in the advancing process.
The number of the liquid outlets 6 on the side wall of the injection tube 4 is not less than two, and the liquid outlets are annularly and uniformly distributed on the side wall of the injection tube 4; through the quantity and the position that set up liquid outlet 6 for the inside injection liquid of injection tube 4 can be even fill inside sacculus 2, thereby more even release in sacculus 2 can be followed to the injection liquid, improves the detection effect in follow-up sacculus 2 position.
The diameter of the catheter 1 is 7-8F, the length of the catheter 1 is 60-80cm, the distance between the balloon 2 and the front end of the catheter 1 is 8-12mm, the length of the balloon 2 is 18-20mm, and the diameter of the balloon 2 in the filling state is not more than 50 mm; through setting up the size of pipe 1 and sacculus 2, make it can more effectual be applicable to the patient, reduce the unexpected injury that pipe 1 and sacculus 2 caused the patient in the use, can closely laminate through the pipe wall of 2 walls of sacculus and the pipe 1 body when controlling not sufficient simultaneously for pipe 1 can pass through the blood vessel smoothly, and the setting that reduces sacculus 2 leads to pipe 1 to lead to the fact the condition of blocking in the blood vessel.
Two ends of an elastic membrane 3 forming the balloon 2 are respectively connected with the partition boards 5 at two sides of the flow guide cavity, an elastic body 11 is arranged between the elastic membrane 3 and the inner wall of the injection tube 4, and the surface of the elastic membrane 3 is contracted inside the catheter 1 when the elastic membrane is in an unfilled state; by providing the connection form of the balloon 2, when the catheter 1 passes through a blood vessel, the balloon 2 is accommodated inside the catheter 1 under the action of the elastic body 11, and the situation that the balloon 2 protrudes out of the catheter 1 to influence the movement of the catheter 1 in the blood vessel is further reduced.
The elastic body 11 is an elastic telescopic bag, the side wall of the telescopic bag is wave-shaped, the elastic body 11 is connected to the liquid outlet 6 on the side wall of the injection tube 4 and communicated with the inside of the injection tube 4, and the side wall of the telescopic bag is provided with a plurality of shrinkage cavities; after injection is filled into the injection tube 4 inside, its inside injection rate flows into the bellows earlier, make the bellows expand in extension after the filling, thereby can be ejecting to pipe 1 outside elastic membrane 3, promote opening of play liquid hole on the elastic membrane 3, the inside injection of bellows flows into sacculus 2 from shrinkage cavity and water conservancy diversion chamber afterwards, and can the efficient release, and elastic membrane 3 can more effectual and blood vessel wall laminating under the effect of bellows, thereby can play more effective effect of blocking to the blood vessel, after the work of sacculus 2 is finished, through the back-pumping injection, make the bellows reset in the shrink, can more effective pulling elastic membrane 3 accomodate inside pipe 1, be convenient for sacculus 2 and pipe 1 take out from the blood vessel.
The middle part of the inner wall of the elastic membrane 3 is connected with a flexible adsorption layer 12, the side wall of the injection tube 4 corresponding to the adsorption layer 12 is connected with a flexible magnetic layer 13, and the flexible magnetic layer 13 can attract the adjacent adsorption layer 12; after the work of sacculus 2 finishes, the flexible bag drives adsorbed layer 12 on the elastic membrane 3 to draw close to flexible magnetic layer 13 in the process of resetting for flexible magnetic layer 13 promotes elastic membrane 3 more stable effectual accomodating inside pipe 1 through the attraction to adsorbed layer 12.
The liquid outlet hole is formed in the elastic membrane 3 at the position of the adsorption layer 12, and the adsorption layer 12 is provided with a diversion hole 14 communicated with the liquid outlet hole; when needs sacculus 2 carries out the shutoff to the blood vessel, through the position that sets up out the liquid hole for behind the middle part that elastic membrane 3 takes the lead to bulging and the laminating of vascular wall, the vascular wall can carry out effectual shutoff to going out the liquid hole, reduces out the liquid hole because of setting up the border position at elastic membrane 3, leads to the laminating of elastic membrane 3 and vascular wall not real, and takes place the condition that the injection was revealed.
Example two:
as shown in fig. 4, a first comparative example, in which another embodiment of the present invention is: an arc-shaped plugging bag 15 is connected to the adsorption layer 12 at the diversion hole 14, a liquid leakage cavity 16 is formed in the surface of the plugging bag 15, and the plugging bag 15 is communicated with a shrinkage hole of the telescopic bag through a hose 17; when the injection filled in the telescopic bag is less, the leakage cavity 16 on the blocking bag 15 is in an open state, so that the injection can penetrate through the leakage cavity 16 and be released, when the balloon 2 is required to block a blood vessel, when the injection amount in the telescopic bag is increased, a part of the injection in the telescopic bag can flow into the blocking bag 15 through the hose 17, so that the leakage groove is closed by the blocking bag 15 in expansion, and the situation that the injection in the diversion cavity leaks from the liquid outlet hole on the elastic membrane 3 is reduced.
An elastic plugging ball 18 is arranged on one side of the flow guide hole 14 close to the plugging bag 15, and a pull rope 19 is connected between the plugging ball 18 and the side wall of the flow guide hole 14; the blocking bag 15 can press the elastic blocking ball 18 into the diversion hole 14 in the expansion process, so that the diversion hole 14 is closed more effectively, and the condition that the injection in the diversion cavity leaks out of the catheter 1 is further reduced.
The working principle is as follows: when the balloon blocking device 2 is used, 3-5 milliliters of 18F-FDG liquid is firstly injected into the injection tube 4 through the injector 8 when the catheter 1 drives the balloon 2 to move to the approximate position to be blocked, so that the balloon 2 is slightly swelled after the 18F-FDG liquid in the injection tube 4 flows into the balloon 2 through the diversion cavity, then the 18F-FDG liquid is released from a liquid outlet hole on the surface of the balloon 2 and is submerged with negative electrons of a body to release gamma rays, then the positioning effect of the balloon 2 is realized by capturing the gamma rays by the handheld gamma ray detector, then the position of the balloon 2 is accurately adjusted, the liquid is filled into the balloon 2 to 10 milliliters through the injection tube 4, the complete filling of the balloon 2 is realized, and the surface of the balloon 2 which is fully swelled at the moment is attached to the wall of a blood vessel, so that the balloon blocking effect on the blood vessel can be realized, the liquid outlet hole on the surface of the balloon 2 can be blocked, and the continuous outflow of injection in the balloon 2 is reduced, so that the work of the balloon 2 can be stably and effectively carried out; the device can assist in determining the general anatomical position of the balloon 2 in the body before aorta occlusion hemostasis is performed, increases the success rate of the disposable balloon 2 occlusion, effectively makes up the technical defects of ultrasonic positioning and X-ray radiation positioning, and has the following advantages that firstly, the requirements on the technical capability and experience of first-aid performers are low, and the first-aid performers can master the first-aid performers according to program operation after simple training; secondly, the 18F-FDG is a common medical medicament, the availability and the medication cost can be controlled, and the corresponding handheld gamma ray detector for 18F-FDG detection has low cost and low cost; thirdly, the technical operation procedure is simple, the risk of additionally increasing the bleeding time is small, and fourthly, the half-life period of 18F is short, and the secondary injury to patients is small; by adding the guide wire structure on the catheter 1, the guide effect on the catheter 1 and the balloon 2 is enhanced through the guide wire, and the hard damage of the blood vessel wall possibly caused in the advancing process of the catheter 1 and the balloon 2 is reduced; by setting the number and the positions of the liquid outlets 6, the injection liquid in the injection tube 4 can be uniformly filled in the balloon 2, so that the injection liquid can be more uniformly released from the balloon 2, and the subsequent detection effect of the position of the balloon 2 is improved; the catheter 1 and the balloon 2 are more effectively suitable for patients by setting the sizes of the catheter 1 and the balloon 2, accidental injury to the patients caused by the catheter 1 and the balloon 2 in the using process is reduced, meanwhile, the catheter 1 can smoothly pass through the blood vessel by controlling the tight fit between the wall of the balloon 2 and the wall of the catheter 1 body when the catheter is not full, and the blocking condition of the catheter 1 in the blood vessel caused by the arrangement of the balloon 2 is reduced; by arranging the connection form of the balloon 2, when the catheter 1 passes through a blood vessel, the balloon 2 is accommodated in the catheter 1 under the action of the elastic body 11, so that the situation that the balloon 2 protrudes out of the catheter 1 to influence the movement of the catheter 1 in the blood vessel is further reduced; after the injection is filled into the injection tube 4, the injection rate inside the injection tube firstly flows into the telescopic bag, so that the telescopic bag expands after being filled with the injection, the elastic membrane 3 can be ejected out of the catheter 1, the opening of a liquid outlet hole in the elastic membrane 3 is promoted, then the injection inside the telescopic bag flows into the balloon 2 from a shrinkage hole and a flow guide cavity and can be efficiently released, the elastic membrane 3 can be more effectively attached to the wall of a blood vessel under the action of the telescopic bag, a more effective blocking effect on the blood vessel can be achieved, after the balloon 2 finishes working, the injection is pumped back, so that the telescopic bag can more effectively pull the elastic membrane 3 to be accommodated inside the catheter 1 after being contracted and reset, and the balloon 2 and the catheter 1 can be conveniently pumped out from the blood vessel; after the balloon 2 finishes working, the flexible balloon drives the adsorption layer 12 on the elastic membrane 3 to approach the flexible magnetic layer 13 in the resetting process, so that the flexible magnetic layer 13 can attract the adsorption layer 12 to promote the elastic membrane 3 to be more stably and effectively accommodated in the catheter 1; when the balloon 2 is required to plug a blood vessel, the liquid outlet holes can be effectively plugged by the blood vessel wall after the middle part of the elastic membrane 3 which is firstly swelled is attached to the blood vessel wall by setting the positions of the liquid outlet holes, so that the situation that the liquid outlet holes are not attached to the blood vessel wall because the liquid outlet holes are arranged at the edge of the elastic membrane 3, and the injection liquid leaks is reduced; when the injection liquid filled in the telescopic bag is less, the liquid leakage cavity 16 on the blocking bag 15 is in an open state, so that the injection liquid can penetrate through the liquid leakage cavity 16 and be released, when the balloon 2 is required to block a blood vessel, when the injection liquid amount in the telescopic bag is increased, a part of the injection liquid in the telescopic bag can flow into the blocking bag 15 through the hose 17, so that the liquid leakage groove is closed by the blocking bag 15 during expansion, and the situation that the injection liquid in the diversion cavity leaks from the liquid outlet hole on the elastic membrane 3 is reduced; the blocking bag 15 can press the elastic blocking ball 18 into the diversion hole 14 in the expansion process, so that the diversion hole 14 is more effectively closed, and the condition that the injection in the diversion cavity leaks out of the catheter 1 is further reduced.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An aorta occlusion balloon device based on 18F-FDG detection positioning, comprising a catheter (1); the method is characterized in that: catheter (1) front end is equipped with sacculus (2), sacculus (2) comprise elastic membrane (3), liquid outlet hole has been seted up on elastic membrane (3) surface, pipe (1) is inside to run through has injection syringe (4), be equipped with annular baffle (5) between pipe (1) inner wall that tip that injection syringe (4) are close to sacculus (2) and sacculus (2) department, form the water conservancy diversion chamber between baffle (5), injection syringe (4) and pipe (1), liquid outlet (6) have been seted up on injection syringe (4) lateral wall that the water conservancy diversion chamber inboard corresponds, set up opening (7) that are linked together with sacculus (2) on pipe (1) lateral wall that the water conservancy diversion chamber outside corresponds, pipe (1) rear end is equipped with syringe (8) that are linked together with injection syringe (4).
2. The aorta occlusion balloon device based on 18F-FDG exploration positioning, as recited in claim 1, wherein: the utility model discloses a blood vessel guiding device, including injection tube (4), wire guiding body (10) are worn out to the inside silk guide tube (9) that runs through of injection tube (4), wire guiding body (10) are inside to be equipped with of wire guiding tube (9), the rear end of wire guiding body (10) is leading-in from the rear end of pipe (1), the front end of wire guiding body (10) is worn out from the front end of pipe (1) to can be used for guiding pipe (1) and put into the aorta hypomere through femoral artery.
3. The aorta occlusion balloon device based on 18F-FDG detection positioning as claimed in claim 1, wherein: two sets of are no less than in liquid outlet (6) quantity on injection pipe (4) lateral wall, and the annular equipartition is on the lateral wall of injection pipe (4).
4. The aorta occlusion balloon device based on 18F-FDG detection positioning as claimed in claim 1, wherein: the diameter of the catheter (1) is 7-8F, the length of the catheter (1) is 60-80cm, the distance between the balloon (2) and the front end of the catheter (1) is 8-12mm, the length of the balloon (2) is 18-20mm, and the diameter of the balloon (2) in the filling state is not larger than 50 mm.
5. The aorta occlusion balloon device based on 18F-FDG detection positioning as claimed in claim 1, wherein: the two ends of an elastic membrane (3) forming the balloon (2) are respectively connected with the partition boards (5) on the two sides of the flow guide cavity, an elastic body (11) is arranged between the elastic membrane (3) and the inner wall of the injection tube (4), and the surface of the elastic membrane (3) is contracted inside the catheter (1) when the elastic membrane is in an unfilled state.
6. The aorta occlusion balloon device based on 18F-FDG detection positioning as claimed in claim 5, wherein: the elastic body (11) is an elastic telescopic bag, the side wall of the telescopic bag is wavy, the elastic body (11) is connected to a liquid outlet (6) on the side wall of the injection tube (4) and communicated with the inside of the injection tube (4), and a plurality of shrinkage cavities are formed in the side wall of the telescopic bag.
7. The aorta occlusion balloon device based on 18F-FDG detection positioning as claimed in claim 6, wherein: the inner wall middle part of elasticity membrane (3) is connected with flexible adsorbed layer (12), syringe (4) lateral wall is connected with flexible magnetic layer (13) with the corresponding lateral wall position department of adsorbed layer (12), flexible magnetic layer (13) can attract adsorbed layer (12) that are close to.
8. The aorta occlusion balloon device based on 18F-FDG detection positioning as claimed in claim 7, wherein: the liquid outlet hole is formed in the elastic membrane (3) of the adsorption layer (12), and the adsorption layer (12) is provided with a flow guide hole (14) communicated with the liquid outlet hole.
9. The aorta occlusion balloon device based on 18F-FDG detection positioning, according to claim 8, wherein: the adsorption layer (12) at the position of the diversion hole (14) is connected with an arc-shaped plugging bag (15), the surface of the plugging bag (15) is provided with a liquid leakage cavity (16), and the plugging bag (15) is communicated with the shrinkage cavity of the telescopic bag through a hose (17).
10. The aorta occlusion balloon device based on 18F-FDG detection positioning, according to claim 9, wherein: one side of the diversion hole (14) close to the blocking bag (15) is provided with an elastic blocking ball (18), and a pull rope (19) is connected between the blocking ball (18) and the side wall of the diversion hole (14).
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| CN115253036A (en) * | 2022-08-11 | 2022-11-01 | 中国人民解放军陆军军医大学第二附属医院 | Aorta blocking perfusion tube |
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