CN115381548B - Radio frequency ablation catheter capable of locking connection tail wire - Google Patents
Radio frequency ablation catheter capable of locking connection tail wire Download PDFInfo
- Publication number
- CN115381548B CN115381548B CN202210916591.1A CN202210916591A CN115381548B CN 115381548 B CN115381548 B CN 115381548B CN 202210916591 A CN202210916591 A CN 202210916591A CN 115381548 B CN115381548 B CN 115381548B
- Authority
- CN
- China
- Prior art keywords
- wire
- handle
- catheter
- tail
- locking
- 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.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00172—Connectors and adapters therefor
- A61B2018/00178—Electrical connectors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00345—Vascular system
- A61B2018/00404—Blood vessels other than those in or around the heart
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/0063—Sealing
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Otolaryngology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Cardiology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a radio frequency ablation catheter capable of locking a connecting tail wire. The radiofrequency ablation catheter comprises a catheter body, a radiofrequency coil, a handle, a wire guide tube, a starting chip, a connecting tail wire and a tail wire locking device, wherein the radiofrequency coil is wound at the far end of the catheter body; the handle is connected to the proximal end of the catheter tube; the guide wire tube penetrates through the handle and the catheter tube body and penetrates through the distal end of the catheter tube body, and a guide wire cavity is formed in the guide wire tube; the starting chip is arranged in the handle and is connected with the radio-frequency coil through a radio-frequency heating wire; one end of the connecting tail wire is connected with the starting chip, the other end of the connecting tail wire penetrates through and is exposed out of the proximal end part of the handle, and the exposed end of the connecting tail wire is provided with a host connector; the tail wire locking device is arranged in the proximal end of the handle and used for locking and fixing the connecting tail wire. The radio frequency ablation catheter can ensure that the connecting tail wire is in a locking and fixing state in the operation process, thereby effectively ensuring the stability and reliability of the operation process.
Description
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to a radio frequency ablation catheter capable of locking a connecting tail wire.
Background
Varicose veins are the most common diseases of the venous system, and various causes are formed, including congenital venous insufficiency of lower limbs, arteriovenous fistula, deep venous thrombosis sequelae, venous valve-free diseases and the like, and acquired factors are that the same posture is maintained for a long time, little change is caused, lower limbs are accumulated in blood, venous valves are destroyed under the condition of daily accumulation and monthly accumulation, and venous pressure is excessively high, so that varicose veins are caused.
The existing high-efficiency and safe treatment method is surgical intervention treatment, a catheter is inserted into a diseased vessel position of a patient in the operation, the catheter is provided with a heating device, a radio frequency closure generator is connected outside the body, radio frequency energy can be transmitted to diseased vessel tissues through the catheter heating device, diseased vessels are heated and shrunk, and inflammatory denaturation occurs on fiber layers to completely block the curved vessels, so that the treatment purpose is achieved. In the operation process, the catheter is connected with the external radio frequency closed generator host through the connector on the tail wire, but in the operation process, because the position of the connecting tail wire is not fixed, stretching or shrinking can often occur, so that the stability and the reliability of the operation process are affected.
Accordingly, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The invention aims to provide a radio frequency ablation catheter capable of locking a connecting tail wire, so as to solve the problem that the stability and reliability of an operation process are affected due to the fact that the position of the connecting tail wire is not fixed.
In order to achieve the above object, the present invention provides the following technical solutions:
a radio frequency ablation catheter lockable with a connection tail, the radio frequency ablation catheter comprising:
a catheter tube;
a radio frequency coil wound on the distal end of the catheter tube;
a handle connected to the proximal end of the catheter tube;
the guide wire tube penetrates through the handle and the catheter tube body and penetrates through the distal end of the catheter tube body, and a guide wire cavity is formed in the guide wire tube;
the starting chip is arranged in the handle and is connected with the radio-frequency coil through a radio-frequency heating wire;
the connecting tail wire is connected with the starting chip at one end, penetrates through the other end and is exposed out of the proximal end part of the handle, and a host connector is arranged at the exposed end of the connecting tail wire;
and the tail wire locking device is arranged in the proximal end of the handle and used for locking and fixing the connecting tail wire.
Optionally, the tail wire locking device includes:
a lock stop disposed within the proximal end of the handle;
the pushing rod is arranged in the proximal end of the handle and opposite to the lock stop block, an arc-shaped abdication hole is formed in the handle corresponding to the pushing rod, one end of the pushing rod penetrates through the arc-shaped abdication hole and is exposed out of the handle, and a rotary shifting piece is arranged at the exposed end of the pushing rod;
the locking switch is arranged between the locking stop block and the pushing rod, an annular clamping groove is formed in the outer surface of the locking switch, locking chucks are arranged on the inner sides of the locking stop block and the pushing rod, and the locking chucks are clamped in the annular clamping groove;
the locking switch is provided with a tail wire passing hole, and the exposed end of the connecting tail wire is arranged in the tail wire passing hole in a penetrating way;
the rotary shifting piece rotates along the arc-shaped abdicating hole to drive the pushing rod to rotate, and drives the locking chuck on the pushing rod to move towards the direction of clamping the locking switch, so that the locking switch deforms to lock and fix the connecting tail wire on the inner side.
Optionally, the rotary plectrum is arc plectrum, the radian of rotary plectrum with the outer surface radian looks adaptation of handle.
Optionally, the material of locking switch is silica gel, the material of connecting the tail wire is polyvinyl chloride.
Optionally, a winding post is further disposed in the handle, and the winding post can rotate relative to the handle and is at least partially exposed on the outer surface of the handle; a connecting tail located inside the handle may be wound around the winding post.
Optionally, a connecting hole is formed in the distal end surface of the handle, the inner diameter of the connecting hole is matched with the outer diameter of the catheter tube, and the outer wall of the proximal end of the catheter tube is fixedly connected to the inner wall of the connecting hole;
the guide wire tube penetrates through the inside of the catheter tube body and penetrates through the distal end of the catheter tube body, and a heating wire penetrating hole is formed in the position of the radio frequency coil of the catheter tube body;
the end of the radio frequency heating wire, which is far away from the starting chip, sequentially penetrates through the connecting hole, a gap between the inner surface of the catheter tube body and the outer surface of the wire tube, and the penetrating hole of the heating wire, and is connected with the radio frequency coil.
Optionally, a temperature induction wire is further arranged between the starting chip and the radio frequency coil, and an induction wire penetrating hole is further formed in the catheter tube body at the radio frequency coil;
one end of the temperature sensing wire, which is far away from the starting chip, sequentially penetrates through the connecting hole, a gap between the inner surface of the catheter tube and the outer surface of the guide wire tube, and the sensing wire penetrating hole, and is connected with the radio-frequency coil.
Optionally, a heating wire guiding column and an induction wire guiding column are further arranged in the handle, and are used for guiding and positioning the radio-frequency heating wire and the temperature induction wire.
Optionally, a start button is disposed on the start chip, and a movable switch button is disposed on the handle corresponding to the start button, and the switch button can be pressed on the start button, so that a circuit of the start chip is turned on to heat the radio frequency coil.
Optionally, a UV glue head is arranged at the distal end of the catheter tube, and the guide wire tube penetrates through the UV glue head; the radiofrequency ablation catheter further comprises a protective cover, the protective cover is arranged at the far end of the handle, and the near end of the catheter body penetrates through the protective cover and is fixedly connected to the far end of the handle.
The beneficial effects are that:
the radiofrequency ablation catheter comprises a catheter body, a radiofrequency coil, a handle, a wire guide tube, a starting chip, a connecting tail wire and a tail wire locking device, wherein the radiofrequency coil is wound at the far end of the catheter body; the handle is connected to the proximal end of the catheter tube; the guide wire tube penetrates through the handle and the catheter tube body and penetrates through the distal end of the catheter tube body, and a guide wire cavity is formed in the guide wire tube; the starting chip is arranged in the handle and is connected with the radio-frequency coil through a radio-frequency heating wire; one end of the connecting tail wire is connected with the starting chip, the other end of the connecting tail wire penetrates through and is exposed out of the proximal end part of the handle, and the exposed end of the connecting tail wire is provided with a host connector; the tail wire locking device is arranged in the proximal end of the handle and used for locking and fixing the connecting tail wire. When the radiofrequency ablation catheter is used for treating varicose vein, the guide wire is penetrated in the guide wire cavity in the guide wire tube, the radiofrequency ablation catheter reaches a lesion site by means of traction of the guide wire, and the host connector connected with the exposed end of the tail wire is connected with the host of the external connection radiofrequency closure generator, so that the radiofrequency coil can be heated by the radiofrequency heating wire, the radiofrequency energy can be transmitted to lesion vascular tissues after the radiofrequency coil heats, the lesion vascular tissues shrink due to heating, and the fiber layer is inflammatory and denatured to completely block the varicose vascular tissues, and the treatment purpose is achieved. And in the operation process, the connecting tail wire can be locked and fixed through the tail wire locking device, so that the stability and the reliability of the operation process are effectively ensured.
Drawings
The accompanying drawings, which 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. Wherein:
FIG. 1 is a schematic diagram of one embodiment of a radiofrequency ablation catheter of the present invention;
FIG. 2 is a schematic view of the internal structure of the radiofrequency ablation catheter of FIG. 1;
FIG. 3 is a schematic view of the internal structure of the catheter tube of FIG. 1;
FIG. 4 is a schematic view of the tail lock of FIG. 1 from another perspective;
FIG. 5 is a schematic view of the tail lock of FIG. 4 in a clamped, secured connection with a tail;
fig. 6 is a schematic view of the tail lock of fig. 4 from another perspective.
Reference numerals in the drawings: 1-a catheter tube; 13-UV glue head; 2-a radio frequency coil; 21-a radio frequency heating wire; 22-temperature sensing wire; 3-a handle; 31-a heating wire guide post; 32-induction wire guide posts; 33-positioning columns; 34-winding posts; 35-a switch button; 36-a grip; 4-a guidewire tube; 5-a host connector; 6-connecting the tail wire; 7-starting a chip; 71-an actuation button; 8-tail locking device; 81-rotating a plectrum; 82-pushing rod; 83-locking the chuck; 84-locking switch; 841-annular clamping grooves; 85-locking stop blocks; 9-protective cover.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
The present invention will be described in detail with reference to examples. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
Aiming at the problem that the stability and reliability of the operation process are affected due to the fact that the position of the connecting tail wire is not fixed in the prior art, the invention provides the radio frequency ablation catheter capable of locking the connecting tail wire.
As shown in fig. 1 to 3, the radiofrequency ablation catheter of the invention comprises a catheter tube 1, a radiofrequency coil 2, a handle 3, a guide wire tube 4, a starting chip 7, a connecting tail wire 6 and a tail wire locking device 5, wherein the radiofrequency coil 2 is wound at the distal end of the catheter tube 1; the handle 3 is connected to the proximal end of the catheter tube 1, and the connection mode can be selected as cementing fixation, so that the operation is simple and the connection is firm; the guide wire tube 4 is penetrated into the handle 3 and the catheter tube 1 and penetrates through the distal end of the catheter tube 1, and a guide wire cavity (not labeled) is formed in the guide wire tube 4; the starting chip 7 is arranged in the handle 3, and the starting chip 7 is connected with the radio frequency coil 2 through a radio frequency heating wire 21; one end of the connecting tail wire 6 is connected with the starting chip 7, the other end of the connecting tail wire 6 penetrates through and is exposed out of the proximal end part of the handle 3, and the exposed end of the connecting tail wire 6 is provided with a host connector 5; the tail wire locking device 8 is arranged inside the proximal end of the handle 3 and is used for locking and fixing the connecting tail wire 6.
When the radiofrequency ablation catheter is used for performing an operation of treating varicose veins, the guide wire is arranged in the guide wire cavity in the guide wire tube 4 in a penetrating way, the radiofrequency ablation catheter reaches a lesion part by means of traction of the guide wire, the host connector 5 connected with the exposed end of the tail wire 6 is connected with the host of the external connection radiofrequency closure generator, the radiofrequency coil 2 can be heated by the radiofrequency heating wire 21, the radiofrequency energy can be transmitted to lesion vascular tissues after the radiofrequency coil 2 heats, the lesion vascular tissues are heated and shrunk, and inflammatory denaturation occurs on the fiber layer to completely block the varicose vascular tissues, so that the purpose of treatment is achieved. And, can lock the connection tail 6 through the tail locking device 8 and fix in the operation process to guarantee the stability and the reliability of operation process effectively.
It should be noted that, the proximal end is the end close to the operator, and the distal end is the end far away from the operator.
As shown in fig. 4 to 6, in the embodiment of the present invention, the tail wire locking device 8 includes: a lock stopper 85, a push rod 82, and a lock switch 84, the lock stopper 85 being provided inside the proximal end of the handle 3; the push rod 82 is arranged inside the proximal end of the handle 3 and opposite to the lock stop block 85, the handle 3 is provided with an arc-shaped abdication hole (not labeled) corresponding to the push rod 82, one end of the push rod 82 passes through the arc-shaped abdication hole and is exposed out of the handle 3, and the exposed end of the push rod 82 is provided with a rotary plectrum 81; the locking switch 84 is arranged between the locking stop block 85 and the pushing rod 82, an annular clamping groove 841 is formed in the outer surface of the locking switch 84, locking chucks 83 are arranged on the inner sides of the locking stop block 85 and the pushing rod 82, and the locking chucks 83 are clamped in the annular clamping groove 841, so that limiting and fixing of the locking switch 84, the locking stop block 85 and the pushing rod 82 can be achieved; the lock switch 84 is provided with a tail passage hole (not shown) in which the size of the tail passage hole is adapted to the radial size of the connection tail 6, and the exposed end of the connection tail 6 is inserted. By means of the structural design, the rotary pulling piece 81 is manually rotated, the push rod 82 can be driven to rotate by rotating along the arc yielding hole, and the locking chuck 83 on the push rod 82 is driven to move towards the direction of clamping the locking switch 84, so that the locking switch 84 is deformed to lock and fix the inner connecting tail wire 6.
Optionally, the rotary plectrum 81 is an arc plectrum, its radian looks adaptation with the outer surface radian of handle 3, and rotary plectrum 81 can be rotated along the arc hole of stepping down, and rotary plectrum 81 keeps exposing in the arc hole of stepping down in the rotation process to hug closely the arc hole of stepping down, so design, the arc hole of stepping down plays and carries out spacing effect to rotary plectrum 81 rotation process, in order to guarantee that rotary plectrum 81 can effectively lock fixedly to connecting tail wire 6.
In the embodiment of the present invention, the material of the locking switch 84 is silica gel, which has excellent plasticity, and the locking switch 84 deforms under the action of external force, so that the deformation of the locking switch 84 can be ensured to effectively clamp and fix the connection tail 6 on the inner side, and the locking switch can be restored after the external force is removed. Moreover, the outer skin material of the connection tail wire 6 is polyvinyl chloride (Polyvinyl chloride, PVC), and the silica gel material of the locking switch 84 is in clamping contact with the PVC material of the connection tail wire 6, so that larger friction resistance can be formed, and the connection tail wire 6 can be effectively locked and fixed.
As shown in fig. 1 and 2, a winding post 34 is further disposed in the handle 3, the winding post 34 can rotate relative to the handle 3 and is at least partially exposed on the outer surface of the handle 3, that is, the handle 3 is provided with an exposed hole (not shown) corresponding to the winding post 34, and the winding post 34 can be exposed on the outer surface of the handle 3 through the exposed hole; the connecting tail 6 located inside the handle 3 may be wound around the winding post 34. With such a design, the connecting tail 6 can be accommodated inside the handle 3 by manually screwing the winding post 34 on the outside of the handle 3.
It will be appreciated that after the catheter tube 1 is introduced into the lesion site in the blood vessel, the connection tail wire 6 inside the handle 3 needs to be pulled out to connect the host connector 5 with the external connection rf closure generator host, and when the connection tail wire 6 is pulled out in place, the connection tail wire 6 can be locked and fixed by the tail wire locking device 8, so as to ensure the stability and reliability of the operation process. When the operation is finished, the connecting tail wire 6 is loosened by the tail wire locking device 8, and the connecting tail wire 6 is collected inside the handle 3 by manually screwing the winding post 34.
As shown in fig. 2, in the embodiment of the present invention, the starting chip 7 is fixed in the handle 3 through the positioning column 33, specifically, the positioning column 33 is disposed in the handle 3, the starting chip 7 is correspondingly provided with a positioning hole, and the starting chip 7 is fixed in the handle 3 through the cooperation of the positioning hole and the positioning column 33. Optionally, four positioning posts 33 are provided at intervals, and four positioning holes are correspondingly provided, so that the setting stability of the starting chip 7 can be ensured.
Referring to fig. 2 and 3 again, in the embodiment of the present invention, a distal end surface of the handle 3 is provided with a connection hole (not labeled), the inner diameter of the connection hole is adapted to the outer diameter of the catheter tube 1, and the proximal outer wall of the catheter tube 1 is fixedly connected to the inner wall of the connection hole, optionally, the proximal outer wall of the catheter tube 1 is glued and fixed to the inner wall of the connection hole; the wire guide tube 4 penetrates through the inside of the catheter tube 1 and penetrates through the distal end of the catheter tube 1, and a heating wire penetrating hole (not shown) is formed in the catheter tube 1 at the radio frequency coil 2; one end of the radio frequency heating wire 21, which is far away from the starting chip 7, sequentially penetrates through the connecting hole, the gap between the inner surface of the catheter tube 1 and the outer surface of the wire guide tube 4 and the heating wire penetrating hole, and is connected with the radio frequency coil 2. I.e. the radio frequency heating wire 21 is routed in the gap between the inner surface of the catheter tube 1 and the outer surface of the guide wire tube 4.
It should be noted that, the proximal end of the handle 3 and the distal end of the catheter tube 1 are both provided with a guide wire tube passing hole, and the guide wire tube 4 is glued and fixed on the inner wall of the guide wire tube passing hole, so that the assembly operation of the guide wire tube 3 can be realized.
Further, a temperature induction wire 22 is further arranged between the starting chip 7 and the radio frequency coil 2 and used for sensing the temperature of the radio frequency coil 2 in real time, and an induction wire penetrating hole (not shown) is further formed in the position of the radio frequency coil 2 of the catheter tube 1; one end of the temperature sensing wire 22, which is far away from the starting chip 7, sequentially penetrates through the connecting hole, the gap between the inner surface of the catheter tube 1 and the outer surface of the wire guide tube 4, and the sensing wire penetrating hole, and is connected to the radio frequency coil 2, namely, the temperature sensing wire 22 is arranged in the gap between the inner surface of the catheter tube 1 and the outer surface of the wire guide tube 4.
Referring to fig. 2 again, in the embodiment of the present invention, a heating wire guiding column 31 and a sensing wire guiding column 32 are further disposed in the handle 3, so as to guide and position the rf heating wire 21 and the temperature sensing wire 22, so that the routing layout is more reasonable.
Referring to fig. 1 and 2 again, in the embodiment of the present invention, a start button 71 is disposed on the start chip 7, a movable switch button 35 is disposed on the handle 3 corresponding to the start button 71, and after the host connector 5 is connected with the host of the external connection rf closed generator, the switch button 35 can be manually pressed, so as to contact and press the start button 71, so that the circuit of the start chip 7 is turned on to heat the rf coil 2. Specifically, a through hole (not labeled) is disposed at a position of the handle 3 corresponding to the start button 71, the switch button 35 is disposed through the through hole, the switch button 35 is elastically connected with the start button 71 (a spring may be adopted), and the manual pressing of the switch button 37 may contact and press the start button 71.
Further, as shown in fig. 1 and 3, the distal end of the catheter tube 1 is provided with a UV glue head 13, the UV glue head 13 is hemispherical, and is formed by curing with an ultraviolet lamp, and the UV glue body 13 is soft and elastic, and does not scratch the blood vessel. The guide wire tube 4 penetrates through the UV glue head 13, namely, a hole for the guide wire tube 4 to penetrate through is formed in the UV glue head 13, and the guide wire tube 4 is fixed on the hole wall in an adhesive mode.
Referring again to fig. 1 and 2, the radiofrequency ablation catheter further comprises a protective cover 9, wherein the protective cover 9 is arranged at the distal end of the handle 3, and the proximal end of the catheter tube 1 is arranged in the protective cover 9 in a penetrating manner and is fixedly connected to the distal end of the handle 3. The shield 9 is generally tapered and may be used to protect the microcatheter tube 1 from bending or breaking when the handle 3 is manipulated.
It should be noted that, the connection mode between the protective cover 9 and the distal end of the handle 3 is adhesive connection, and the operation is simple and the connection is firm.
Further, the outer contour of the handle 3 of the present invention is cylindrical, and the concave structure of the outer surface of the proximal end is a gripping portion 36, so as to facilitate the operator to hold the handle 3. The handle 3 may be selected as a split housing structure to facilitate assembly operations of the various components within the handle 3.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A radio frequency ablation catheter lockable with a connection tail, the radio frequency ablation catheter comprising:
a catheter tube;
a radio frequency coil wound on the distal end of the catheter tube;
a handle connected to the proximal end of the catheter tube;
the guide wire tube penetrates through the handle and the catheter tube body and penetrates through the distal end of the catheter tube body, and a guide wire cavity is formed in the guide wire tube;
the starting chip is arranged in the handle and is connected with the radio-frequency coil through a radio-frequency heating wire;
the connecting tail wire is connected with the starting chip at one end, penetrates through the other end and is exposed out of the proximal end part of the handle, and a host connector is arranged at the exposed end of the connecting tail wire;
and the tail wire locking device is arranged in the proximal end of the handle and used for locking and fixing the connecting tail wire.
The tail wire locking device comprises:
a lock stop disposed within the proximal end of the handle;
the pushing rod is arranged in the proximal end of the handle and opposite to the lock stop block, an arc-shaped abdication hole is formed in the handle corresponding to the pushing rod, one end of the pushing rod penetrates through the arc-shaped abdication hole and is exposed out of the handle, and a rotary shifting piece is arranged at the exposed end of the pushing rod;
the locking switch is arranged between the locking stop block and the pushing rod, an annular clamping groove is formed in the outer surface of the locking switch, locking chucks are arranged on the inner sides of the locking stop block and the pushing rod, and the locking chucks are clamped in the annular clamping groove;
the locking switch is provided with a tail wire passing hole, and the exposed end of the connecting tail wire is arranged in the tail wire passing hole in a penetrating way;
the rotary shifting piece rotates along the arc-shaped abdicating hole to drive the pushing rod to rotate, and drives the locking chuck on the pushing rod to move towards the direction of clamping the locking switch, so that the locking switch deforms to lock and fix the connecting tail wire on the inner side.
2. The lockable connection tail radiofrequency ablation catheter of claim 1, wherein the rotary paddle is an arcuate paddle, the arc of the rotary paddle being adapted to the arc of the outer surface of the handle.
3. The radio frequency ablation catheter with a lockable connection tail according to claim 1, wherein the locking switch is made of silica gel, and the connection tail is made of polyvinyl chloride.
4. The lockable connection tail radiofrequency ablation catheter of claim 1, wherein a spool is further disposed within the handle, the spool being rotatable relative to the handle and at least partially exposed on an outer surface of the handle;
a connecting tail located inside the handle may be wound around the winding post.
5. The radio frequency ablation catheter with a lockable connection tail according to claim 1, wherein a distal end surface of the handle is provided with a connection hole, an inner diameter of the connection hole is matched with an outer diameter of the catheter tube, and a proximal outer wall of the catheter tube is fixedly connected to an inner wall of the connection hole;
the guide wire tube penetrates through the inside of the catheter tube body and penetrates through the distal end of the catheter tube body, and a heating wire penetrating hole is formed in the position of the radio frequency coil of the catheter tube body;
the end of the radio frequency heating wire, which is far away from the starting chip, sequentially penetrates through the connecting hole, a gap between the inner surface of the catheter tube body and the outer surface of the wire tube, and the penetrating hole of the heating wire, and is connected with the radio frequency coil.
6. The radio frequency ablation catheter with a lockable connection tail according to claim 5, wherein a temperature induction wire is further arranged between the starting chip and the radio frequency coil, and an induction wire penetrating hole is further arranged at the radio frequency coil of the catheter body;
one end of the temperature sensing wire, which is far away from the starting chip, sequentially penetrates through the connecting hole, the gap between the inner surface of the catheter tube and the outer surface of the catheter tube, and the penetrating hole of the sensing wire, and is connected with the radio-frequency coil.
7. The lockable connection tail radiofrequency ablation catheter of claim 6, wherein a heater wire guide post and an induction wire guide post are also disposed within the handle for guiding and positioning the radiofrequency heater wire and the temperature induction wire.
8. The lockable connection tail radiofrequency ablation catheter of claim 1, wherein the activation chip is provided with an activation button, the handle is provided with a movable switch button corresponding to the activation button, and the switch button is capable of pressing the activation button so that the activation chip is electrically connected to heat the radiofrequency coil.
9. The lockable connection tail radiofrequency ablation catheter of any of claims 1-8, wherein the distal end of the catheter tube is provided with a UV glue head through which the guidewire tube extends;
the radiofrequency ablation catheter further comprises a protective cover, the protective cover is arranged at the far end of the handle, and the near end of the catheter body penetrates through the protective cover and is fixedly connected to the far end of the handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210916591.1A CN115381548B (en) | 2022-08-01 | 2022-08-01 | Radio frequency ablation catheter capable of locking connection tail wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210916591.1A CN115381548B (en) | 2022-08-01 | 2022-08-01 | Radio frequency ablation catheter capable of locking connection tail wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115381548A CN115381548A (en) | 2022-11-25 |
| CN115381548B true CN115381548B (en) | 2023-09-19 |
Family
ID=84119191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210916591.1A Active CN115381548B (en) | 2022-08-01 | 2022-08-01 | Radio frequency ablation catheter capable of locking connection tail wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115381548B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725840A (en) * | 2017-02-28 | 2017-05-31 | 太仓市中医医院 | A kind of fixable single use high-frequency electrotome pen |
| CN208892764U (en) * | 2018-06-08 | 2019-05-24 | 常州市肿瘤医院(常州市第四人民医院) | A kind of modified form electric knife for preventing line from breaking |
| CN111067617A (en) * | 2019-12-27 | 2020-04-28 | 苏州恒瑞宏远医疗科技有限公司 | Radio frequency closure catheter and method of making same |
| CN113288410A (en) * | 2021-07-08 | 2021-08-24 | 昆山雷盛医疗科技有限公司 | Cavity organ radio frequency thermal ablation system |
| WO2022007489A1 (en) * | 2020-07-06 | 2022-01-13 | 上海鑫律通生命科技有限公司 | Ablation system having bendable electrode |
| CN114010305A (en) * | 2021-11-17 | 2022-02-08 | 上海玮琅医疗科技有限公司 | Radio frequency ablation catheter and system |
| CN215739397U (en) * | 2021-06-08 | 2022-02-08 | 北京迈迪顶峰医疗科技股份有限公司 | Radio frequency ablation manipulator and radio frequency ablation system |
| CN114224473A (en) * | 2021-12-08 | 2022-03-25 | 上海玮琅医疗科技有限公司 | Radio frequency ablation catheter with function of identifying vascular wall |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8475449B2 (en) * | 2007-12-10 | 2013-07-02 | Medtronic Ablation Frontiers Llc | RF energy delivery system and method |
-
2022
- 2022-08-01 CN CN202210916591.1A patent/CN115381548B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725840A (en) * | 2017-02-28 | 2017-05-31 | 太仓市中医医院 | A kind of fixable single use high-frequency electrotome pen |
| CN208892764U (en) * | 2018-06-08 | 2019-05-24 | 常州市肿瘤医院(常州市第四人民医院) | A kind of modified form electric knife for preventing line from breaking |
| CN111067617A (en) * | 2019-12-27 | 2020-04-28 | 苏州恒瑞宏远医疗科技有限公司 | Radio frequency closure catheter and method of making same |
| WO2022007489A1 (en) * | 2020-07-06 | 2022-01-13 | 上海鑫律通生命科技有限公司 | Ablation system having bendable electrode |
| CN215739397U (en) * | 2021-06-08 | 2022-02-08 | 北京迈迪顶峰医疗科技股份有限公司 | Radio frequency ablation manipulator and radio frequency ablation system |
| CN113288410A (en) * | 2021-07-08 | 2021-08-24 | 昆山雷盛医疗科技有限公司 | Cavity organ radio frequency thermal ablation system |
| CN114010305A (en) * | 2021-11-17 | 2022-02-08 | 上海玮琅医疗科技有限公司 | Radio frequency ablation catheter and system |
| CN114224473A (en) * | 2021-12-08 | 2022-03-25 | 上海玮琅医疗科技有限公司 | Radio frequency ablation catheter with function of identifying vascular wall |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115381548A (en) | 2022-11-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5507744A (en) | Apparatus and method for sealing vascular punctures | |
| US5810810A (en) | Apparatus and method for sealing vascular punctures | |
| USRE40863E1 (en) | Apparatus and method for sealing vascular punctures | |
| US6063085A (en) | Apparatus and method for sealing vascular punctures | |
| US6248124B1 (en) | Arterial hole closure apparatus | |
| US8236025B2 (en) | Silicone insulated electrosurgical forceps | |
| US8251996B2 (en) | Insulating sheath for electrosurgical forceps | |
| US8235992B2 (en) | Insulating boot with mechanical reinforcement for electrosurgical forceps | |
| US8221416B2 (en) | Insulating boot for electrosurgical forceps with thermoplastic clevis | |
| EP2042117B1 (en) | Dual durometer insulating boot for electrosurgical forceps | |
| US9023043B2 (en) | Insulating mechanically-interfaced boot and jaws for electrosurgical forceps | |
| US20090088739A1 (en) | Insulating Mechanically-Interfaced Adhesive for Electrosurgical Forceps | |
| US20090088745A1 (en) | Tapered Insulating Boot for Electrosurgical Forceps | |
| WO2017095626A1 (en) | Electrocautery hemostasis clip | |
| JP2012050538A (en) | Ablation device | |
| CA2494863A1 (en) | Arterial hole closure apparatus | |
| CN102958463B (en) | Electrode assembly | |
| JP2010540189A (en) | System and method for closing a puncture hole | |
| CN115381548B (en) | Radio frequency ablation catheter capable of locking connection tail wire | |
| JP2008517706A (en) | Apparatus for cauterizing tissue and use thereof | |
| WO1994024948A1 (en) | Apparatus and method for sealing vascular punctures | |
| US20080125705A1 (en) | Therapeutic treatment device for body lumen occlusion and method for occluding body lumen using the same | |
| CN110769767B (en) | Thread-burying operation device | |
| JP3670265B2 (en) | Large saphenous varices treatment device | |
| KR20200021031A (en) | Method for skin beauty treatment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |