CN110464968B - Guide wire safe delivery device for vascular interventional therapy operation and use method - Google Patents
Guide wire safe delivery device for vascular interventional therapy operation and use method Download PDFInfo
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- CN110464968B CN110464968B CN201910807832.7A CN201910807832A CN110464968B CN 110464968 B CN110464968 B CN 110464968B CN 201910807832 A CN201910807832 A CN 201910807832A CN 110464968 B CN110464968 B CN 110464968B
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- clamping
- delivery device
- sliding sleeve
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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
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0127—Magnetic means; Magnetic markers
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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
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M25/09041—Mechanisms for insertion of guide wires
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Abstract
The invention relates to a guide wire safe delivery device for vascular interventional therapy operation and a use method thereof, wherein the guide wire safe delivery device comprises an outer tube, a hollow tubular structure with openings at two ends, and an electromagnetic coil sleeved outside one end; the sliding sleeve is of a hollow tubular structure with openings at two ends, is coaxial with the outer pipe and penetrates through the outer pipe, two ends of the sliding sleeve are positioned outside the outer pipe, the outer side of one end of the sliding sleeve is sleeved with a ferromagnetic body, and the ferromagnetic body is positioned on one side close to the electromagnetic coil; one end of the clamping threaded sleeve is connected with the sliding sleeve in a matching mode, the clamping threaded sleeve is located at the opposite end of the ferromagnetic body, and the other end of the clamping threaded sleeve is contracted to form a clamping through hole. Avoids secondary tissue damage caused by puncturing the vessel wall, and can be used for protecting the guide wire process of vessels with different thicknesses.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a guide wire safe delivery device for a vascular interventional therapy operation and a use method.
Background
The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
With the improvement of the living standard of people and the aging of the population structure, the incidence rate, the death rate and the disability rate of the vascular system diseases rise year by year. With the advancement of technology and medical instruments, minimally invasive medical treatments have become the mainstream. Whether coronary, cerebrovascular or peripheral vascular interventions, intravascular delivery and manipulation of guidewires is inevitable. Because the vascular wall is fragile, if the guide wire is put in and the operating force is too large, the vascular wall can be punctured to cause secondary tissue damage, even the operation is directly failed, and serious medical accidents such as the life of a patient are endangered.
The existing guide wire clamping devices are simple, the design of a reference patent (application number CN200720068371.9) of a guide wire twister for interventional therapy is simple, the guide wire cannot be adjusted in the guiding process, danger is easy to occur, and corresponding protection cannot be provided for blood vessels with different thicknesses. The strength of the vessel wall is weak, and the delivery force of the guide wire is small, and is measured in grams. The doctor always needs to be in contact with the hand feeling repeatedly, and under the condition of wearing the lead clothes, the arm needs to overcome the weight of the heavy lead clothes, and the small force for delivering the guide wire is not easy to grasp, so that the medical problem is solved.
Disclosure of Invention
In view of the above problems in the prior art, the present invention is directed to a safe guidewire delivery device and method for vascular interventional procedures. The device design has automatic disengagement mechanism, and too big is sent forward to the seal wire, or when the rotational operation was used hard too big, the seal wire clamping part can break away from or the rotatory slip with the automatic axial of outer tube, plays and avoids puncturing the vascular wall and causes secondary tissue damage, directly leads to the operation failure even, endangers serious medical negligence such as patient's life.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a guide wire safe delivery device for vascular interventional therapy operation, which comprises,
the outer tube is of a hollow tubular structure with openings at two ends, and the outer side of one end is sleeved with an electromagnetic coil;
the sliding sleeve is of a hollow tubular structure with openings at two ends, is coaxial with the outer pipe and penetrates through the outer pipe, two ends of the sliding sleeve are positioned outside the outer pipe, the outer side of one end of the sliding sleeve is sleeved with a ferromagnetic body, and the ferromagnetic body is positioned on one side close to the electromagnetic coil;
one end of the clamping threaded sleeve is connected with the sliding sleeve in a matching mode, the clamping threaded sleeve is located at the opposite end of the ferromagnetic body, and the other end of the clamping threaded sleeve is contracted to form a clamping through hole. The outer tube drives the sliding sleeve through the electromagnetic attraction to drive the guide wire to enter the blood vessel forwards for delivery or to act backwards or to act in a twisting mode.
The invention discloses a safe guide wire throwing device, which is a device for preventing a blood vessel wall from being punctured in a guide wire process. The guide wire passes through the clamping threaded sleeve and the sliding sleeve and is clamped by the clamping threaded sleeve, one end of the guide wire extending out of the clamping through hole of the clamping threaded sleeve is an operation end, the guide wire is clamped by the clamping through hole of the clamping threaded sleeve and changes along with displacement of the clamping threaded sleeve, when an operator holds the outer tube to push the guide wire forwards, the guide wire advances along with the outer tube due to attraction of a coil of the outer tube and a ferromagnetic body of the sliding sleeve.
When the strength of hand is too big, the outer tube can break away from with the sliding sleeve, because the outer tube does not drive the sliding sleeve this moment, so the seal wire does not receive the influence of the great power of outer tube. Similarly, in the radial direction, the force is buffered by the temporary disengagement state, and the blood vessel of the patient is not affected.
In some embodiments, the outer edge of the end of the outer tube remote from the solenoid coil is provided with an annular protrusion.
In some embodiments, the number of turns of the electromagnetic coil is 20-110.
In some embodiments, the ferromagnetic body is in the shape of a circular ring having a diameter of 10-20 mm.
The diameters of the electromagnetic coil and the ferromagnetic body affect the force between the ferromagnetic body and the coil, which cannot be too large or too small, so the number of turns of the electromagnetic coil and the diameter of the ring are set by the inventor based on experience. When the acting force of a person exceeds the interaction force, the electromagnetic coil and the ferromagnetic body are separated, and if the acting force between the electromagnetic coil and the ferromagnetic body is too large, the acting force of the person exceeds the destructive force of the blood vessel, the action of buffering is not played, and the significance is not realized.
In some embodiments, the outer tube has a diameter of 10-15mm and the sliding sleeve has a diameter of 5-10 mm.
In some embodiments, the clamping through-hole of the clamping screw sleeve has a diameter of 0.08-1 cm.
In some embodiments, a lock nut is coaxially disposed outside one end of the clamping through hole of the clamping nut, and the lock nut is threadedly coupled to the clamping nut.
In some embodiments, the solenoid is connected to a power source via a wire, the power source having a current of 0.3-0.8A.
In some embodiments, one end of the clamping through hole of the clamping screw sleeve is provided with a cross-shaped groove.
The use method of the guide wire safe delivery device comprises the following specific steps:
and inserting the guide wire into the clamping threaded sleeve from one end of the clamping through hole, screwing the guide wire and the clamping threaded sleeve by using a locking nut when the guide wire extends out of the sliding sleeve for a certain distance, enabling the ferromagnetic body to be close to the electromagnetic coil, turning on a power supply and adjusting current.
Preferably, the magnitude of the current is 0.3-0.8A. Preferably, the number of turns of the electromagnetic coil is 20-110. Preferably, the diameter of the guide wire is 0.08-1 cm.
The invention has the beneficial effects that:
the guide wire safe delivery device for the vascular interventional therapy operation solves the problem which troubles doctors all the time, avoids excessive force or misoperation, protects patients and shortens the exercise time of the doctors. Representing a trend in guidewire delivery systems. The electromagnetic force can be adjusted according to different blood vessels, and the application range is wide. Meanwhile, the guide wire rotating operation is also protected.
The guide wire safe throwing device can adapt to blood vessels with different thicknesses, and the adjustment spaces and stress ranges of the blood vessels with different thicknesses are different, so that the guide wire safe throwing device can set different protection forces aiming at the blood vessels at different parts to form the protection of the blood vessels and avoid puncturing the blood vessel wall.
The delivery force of the guide wire is not easy to control, and the delivery force can be controlled easily by the delivery device.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the invention and not to limit the invention.
FIG. 1 is a structural section view of a guide wire safety delivery device for vascular interventional therapy;
FIG. 2 is a schematic perspective view of a clamping screw boss;
the device comprises a guide wire 1, a guide wire 2, a locking nut 3, a sliding sleeve 4, a clamping threaded sleeve 5, a ferromagnet 6, an outer tube 7, an electromagnetic coil 8, a lead wire 9, a power supply 10 and a cross groove.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
A guide wire safe delivery device for vascular interventional therapy operation, which comprises,
the outer tube 6 is a hollow tubular structure with openings at two ends, and the outer side of one end is sleeved with an electromagnetic coil 7;
the sliding sleeve 3 is a hollow tubular structure with openings at two ends, is coaxial with the outer tube 6 and penetrates through the outer tube 6, two ends of the sliding sleeve 3 are positioned outside the outer tube 6, the outer side of one end of the sliding sleeve 3 is sleeved with the ferromagnetic body 5, and the ferromagnetic body 5 is positioned on one side close to the electromagnetic coil 7;
one end of the clamping threaded sleeve 4 is connected with the sliding sleeve 3 in a matching mode, the clamping threaded sleeve 4 is located at the opposite end of the ferromagnetic body 5, and the other end of the clamping threaded sleeve is contracted to form a clamping through hole.
As shown in figure 1, the outer tube 6 and the sliding sleeve 3 are coaxially arranged, the outer tube 6 and the sliding sleeve 3 can rotate mutually in the radial direction, and meanwhile, the axial movement at a certain distance can be realized. The ferromagnetic body 5 is located on a side close to the electromagnetic coil 7 so as to form an electromagnetic force interaction with the electromagnetic coil 7.
The electromagnetic coil 7 is fixedly connected with the outer tube 6, the ferromagnetic body 5 is fixedly connected with the sliding sleeve 3, and the electromagnetic coil 7 and the ferromagnetic body 5 are fixed in position so as to form mutual attraction force. The ferromagnet 5 can drive the sliding sleeve 3 and the clamping threaded sleeve 4 to displace. The outer tube 6 can drive the electromagnetic coil to displace.
The outer edge of the end of the outer tube 6 far away from the electromagnetic coil 7 is provided with a circular ring-shaped bulge. The circular bulge is beneficial to hand-held operation.
The number of turns of the electromagnetic coil 7 is 100.
The ferromagnet 5 is circular and the diameter of the circular ring is 15 mm.
The number of turns of the electromagnetic coil 7, which determines the magnitude of the magnetic force generated, the size of the ferromagnetic body 5, which determines the magnitude of the force acting between the ferromagnetic body and the electromagnetic coil, so the inventors set the number of turns of the electromagnetic coil and the diameter of the ring empirically.
The diameter of the outer tube 6 is 12.5mm, and the diameter of the sliding sleeve 3 is 8 mm. The connection mode of the clamping threaded sleeve 4 and the sliding sleeve 3 can be threaded connection or welded connection, if the connection mode is threaded connection, the outer side of one end of the sliding sleeve 3 is provided with an external thread, the clamping threaded sleeve 4 is provided with an external thread, and if the connection mode is welded connection, the diameters of the clamping threaded sleeve 4 and the sliding sleeve 3 are close.
The diameter of the clamping through-hole of the clamping screw sleeve 4 is 0.08 cm.
The diameter of the clamping through hole is matched with that of the guide wire, so that the guide wire can pass through the clamping through hole, and meanwhile, a certain friction force is formed between the guide wire and the clamping through hole, so that the clamping threaded sleeve can be driven.
The outer side of one end of the clamping through hole of the clamping threaded sleeve 4 is coaxially provided with a locking nut 2, and the locking nut 2 is in threaded connection with the clamping threaded sleeve 4.
The electromagnetic coil 7 is connected with a power supply 9 through a lead 8, and the current of the power supply 9 is 0.5A. The current of the power supply 9 also affects the magnitude of the magnetic force generated by the solenoid coil, as summarized by the inventor based on experience and continuing experiments, too large or too small does not provide a good buffer effect.
One end of the clamping through hole of the clamping screw sleeve 4 is provided with a cross groove 10. The function of the cross groove 10 is that when the clamping screw sleeve is screwed with the outer side wall of the cross groove 10, the clamping acting force on the guide wire is enhanced, and the clamping screw sleeve is favorable for driving the guide wire.
A use method of a guide wire safety delivery device for a vascular interventional therapy operation comprises the following specific steps:
the guide wire 1 is inserted into the clamping threaded sleeve 4 from one end of the clamping through hole, when the guide wire 1 extends out of the sliding sleeve 3 for a certain distance, the locking nut 2 and the clamping threaded sleeve 4 are screwed down, the ferromagnetic body 5 is close to the electromagnetic coil 7, the power supply 9 is turned on, and the current is adjusted.
Because the guide wire 1 has certain hardness, when the outer tube is held by hand, the length of the guide wire 1 which is exposed out of the clamping screw sleeve 4 at first cannot be too long, and the guide wire can move forwards or rotate radially along with the outer tube.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a device is put in to seal wire safety for vascular intervention treatment operation which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the outer tube is of a hollow tubular structure with openings at two ends, and the outer side of one end is sleeved with an electromagnetic coil;
the sliding sleeve is of a hollow tubular structure with openings at two ends, is coaxial with the outer pipe and penetrates through the outer pipe, two ends of the sliding sleeve are positioned outside the outer pipe, the outer side of one end of the sliding sleeve is sleeved with a ferromagnetic body, and the ferromagnetic body is positioned on one side close to the electromagnetic coil;
one end of the clamping threaded sleeve is connected with the sliding sleeve in a matching way, the clamping threaded sleeve is positioned at the opposite end of the ferromagnet, and the other end of the clamping threaded sleeve is contracted to form a clamping through hole;
the outer pipe and the sliding sleeve are coaxially arranged, the outer pipe and the sliding sleeve can rotate mutually in the radial direction, and meanwhile, axial movement can be realized;
the guide wire is inserted into the clamping threaded sleeve from one end of the clamping through hole, has hardness and can move forwards or rotate radially along with the outer tube.
2. The guidewire safety delivery device for vascular interventional therapy procedures as set forth in claim 1, wherein: the outer edge of one end of the outer tube, which is far away from the electromagnetic coil, is provided with a circular ring-shaped bulge.
3. The guidewire safety delivery device for vascular interventional therapy procedures as set forth in claim 1, wherein: the number of turns of the electromagnetic coil is 20-110.
4. The guidewire safety delivery device for vascular interventional therapy procedures as set forth in claim 1, wherein: the ferromagnetic body is in a ring shape, and the diameter of the ring is 10-20 mm.
5. The guidewire safety delivery device for vascular interventional therapy procedures as set forth in claim 1, wherein: the diameter of the outer pipe is 10-15mm, and the diameter of the sliding sleeve is 5-10 mm.
6. The guidewire safety delivery device for vascular interventional therapy procedures as set forth in claim 1, wherein: the diameter of the clamping through hole of the clamping screw sleeve is 0.08-1 cm.
7. The guidewire safety delivery device for vascular interventional therapy procedures as set forth in claim 1, wherein: and a locking nut is coaxially arranged on the outer side of one end of the clamping through hole of the clamping threaded sleeve and is in threaded connection with the clamping threaded sleeve.
8. The guidewire safety delivery device for vascular interventional therapy procedures as set forth in claim 1, wherein: the electromagnetic coil is connected with a power supply through a lead, and the current of the power supply is 0.3-0.8A.
9. The guidewire safety delivery device for vascular interventional therapy procedures as set forth in claim 8, wherein: one end of the clamping through hole of the clamping threaded sleeve is provided with a cross groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910807832.7A CN110464968B (en) | 2019-08-29 | 2019-08-29 | Guide wire safe delivery device for vascular interventional therapy operation and use method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910807832.7A CN110464968B (en) | 2019-08-29 | 2019-08-29 | Guide wire safe delivery device for vascular interventional therapy operation and use method |
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| CN110464968A CN110464968A (en) | 2019-11-19 |
| CN110464968B true CN110464968B (en) | 2022-01-18 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203417395U (en) * | 2013-07-11 | 2014-02-05 | 山东贝诺斯医疗器械有限公司 | Drainage tube with external control type magnetic anti-block device |
| CN206715021U (en) * | 2016-11-18 | 2017-12-08 | 苏州恒瑞迪生医疗科技有限公司 | Seal wire turns round control device and equipment |
| CN108815680A (en) * | 2018-04-17 | 2018-11-16 | 杨延辉 | A kind of laparoscope direct-view is lower to guide stomach tube/jejunal nutrient canal placement location device |
-
2019
- 2019-08-29 CN CN201910807832.7A patent/CN110464968B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203417395U (en) * | 2013-07-11 | 2014-02-05 | 山东贝诺斯医疗器械有限公司 | Drainage tube with external control type magnetic anti-block device |
| CN206715021U (en) * | 2016-11-18 | 2017-12-08 | 苏州恒瑞迪生医疗科技有限公司 | Seal wire turns round control device and equipment |
| CN108815680A (en) * | 2018-04-17 | 2018-11-16 | 杨延辉 | A kind of laparoscope direct-view is lower to guide stomach tube/jejunal nutrient canal placement location device |
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| CN110464968A (en) | 2019-11-19 |
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