CN114848135B - Novel radio frequency ablation forceps for surgical operation - Google Patents
Novel radio frequency ablation forceps for surgical operation Download PDFInfo
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- CN114848135B CN114848135B CN202210780593.2A CN202210780593A CN114848135B CN 114848135 B CN114848135 B CN 114848135B CN 202210780593 A CN202210780593 A CN 202210780593A CN 114848135 B CN114848135 B CN 114848135B
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- 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
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- 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
- A61B18/1442—Probes having pivoting end effectors, e.g. forceps
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- 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
- A61B2018/00351—Heart
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Abstract
The invention discloses a novel radio frequency ablation forceps for surgical operation, which comprises a discharge assembly, a conduction assembly and a control assembly; one end of the conduction assembly, which is far away from the discharge assembly, is connected with the control assembly; the discharging assembly comprises a first connecting frame, a first discharging arm and a second discharging arm; one end of the first connecting frame is connected with the conducting assembly, the middle part of the first connecting frame is connected with the first discharge arm, and the other end of the first connecting frame is connected with the second discharge arm; a first rotating unit for adjusting the shape of the first discharge arm is arranged in the first discharge arm, and the first rotating unit is connected with the first discharge arm; a second rotating unit used for adjusting the shape of the second discharge arm is arranged in the second discharge arm, and the second rotating unit is connected with the second discharge arm; a first control channel is arranged in the first discharge arm; a first locking wire is arranged in the first control channel; a second control channel is arranged in the second discharge arm; and a second locking wire is arranged in the second control channel.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a novel radio frequency ablation forceps for a surgical operation.
Background
Atrial fibrillation (atrial fibrillation) is the most common arrhythmia in clinic, and according to statistics, about 1200 million patients with atrial fibrillation in China have an overall prevalence rate of about 0.8 percent, and is up to 7 percent above 80 years old. Atrial fibrillation can cause many hazards to the human body. When atrial fibrillation occurs, the frequency of atrial beats is extremely fast and irregular, and patients feel palpitation, shortness of breath and weakness, so that the quality of life is influenced. If basic diseases such as hypertension or coronary heart disease are combined at the same time, the heart function is damaged, heart failure occurs, and atrial thrombus falls off to cause ischemic nervous system diseases, which causes corresponding serious complications and fatal events.
Therefore, surgical treatment of atrial fibrillation is of great interest. With the continuous improvement of the operation technology, the application of precision operation instruments such as a thoracoscope, a robot and the like and the use of surgical treatment instruments for atrial fibrillation change day by day, a foundation is laid for the development of cardiac surgeons in the aspect of atrial fibrillation treatment. The surgical ablation operation not only comprises the application in the conventional open-chest cardiac surgery, but also can adopt a minimally invasive radio frequency ablation operation of a small incision between the ribs. The medical control and medical interventional catheter ablation operation has the characteristics of low success rate of single operation, long operation time, long treatment period, high cost and the like, and the surgical ablation operation using the bipolar radio frequency ablation forceps and special surgical instruments can be even carried out in a state that the heart does not stop jumping. The main steps are bilateral pulmonary vein isolation, left atrial-annulus pulmonary vein line ablation, epicardial partial denervation and left atrial appendage resection. Has the advantages of small operation injury, rapid and accurate operation, less complication and good curative effect. Any existing method for treating atrial fibrillation cannot achieve a completely satisfactory effect. With the development of technology, these procedures are made simpler and easier to repeat. Compared with the catheter intervention technology, the surgical radio frequency ablation operation is single treatment, is particularly suitable for patients accompanied with heart thoracotomy operation diseases needing surgical treatment at the same time, and has the single success rate of the operation reaching 70-85 percent.
At present, a bipolar radio frequency ablation clamp is commonly used for ablation isolation, an ablation line is accurate, complete and wall penetrating, and the bipolar radio frequency ablation clamp is an effective method for treating atrial fibrillation at present. At present, the conventional open-chest surgical radio frequency ablation, especially the minimally invasive radio frequency ablation, needs to make a plurality of 1-2cm operation holes on the lateral chest wall, and can complete the operation as fast as possible on the premise of ensuring the operation effect. However, the current bipolar radiofrequency ablation forceps can not meet the requirement of operation in clinical practice.
The rf ablation forceps must be relatively flexible. The existing ablation forceps have a plurality of defects. The radian of the forceps body is too large, the angle cannot be adjusted, and the ablation of the annular vein openings on two sides cannot be met, so that the purpose of the operation can be achieved only by using the radio frequency ablation forceps and the radio frequency ablation pen in a combined manner, and the economic pressure and the operation duration of a patient are increased; the opening between the two forceps arms is too small, so that the forceps are easily interfered by other tissues during operation, and the operation process is influenced.
Disclosure of Invention
In order to overcome the problems set forth in the background, the present invention provides a novel surgical rf ablation forceps.
A novel radio frequency ablation forceps for surgical operation comprises a discharge assembly, a conduction assembly and a control assembly; one end of the conduction assembly, which is far away from the discharge assembly, is connected with the control assembly; the discharge assembly comprises a first connecting frame, a first discharge arm and a second discharge arm; one end of the first connecting frame is connected with the conduction assembly, the middle part of the first connecting frame is connected with the first discharge arm, and the other end of the first connecting frame is connected with the second discharge arm; a first rotating unit used for adjusting the shape of the first discharge arm is arranged in the first discharge arm, and the first rotating unit is connected with the first discharge arm; a second rotating unit used for adjusting the shape of the second discharge arm is arranged in the second discharge arm, and the second rotating unit is connected with the second discharge arm; a first control channel is arranged in the first discharge arm; a first locking wire is arranged in the first control channel; a second control channel is arranged in the second discharge arm; and a second locking wire is arranged in the second control channel.
Further, the first discharge arm comprises a first discharge structure, a first discharge unit and a closing unit; one end of the closing unit is connected with the first connecting frame, and the other end of the closing unit is connected with the first discharging unit; the first discharge structure is arranged in the direction of the first discharge unit far away from the closing unit; two or more first discharge cells are provided.
Further, a discharger is arranged on the side wall of the first discharge arm facing the second discharge arm; the discharger is respectively connected with the first discharge unit and the first discharge structure.
Further, a fourth control channel is arranged inside the first connecting frame; the first control channel is communicated with the fourth control channel; the first locking wire sequentially enters the interior of the conducting assembly through the first control channel and the fourth control channel.
Further, the second discharge arm comprises a second discharge structure and a second discharge unit; the second discharge unit is connected with the first connecting frame; the second discharge structure is arranged in the direction of the second discharge unit far away from the first connecting frame.
Further, two or more second discharge cells are provided. The number of the second discharge units is equal to that of the first discharge units. A discharger is arranged on the side wall of the second discharge arm facing the first discharge arm; the discharger is respectively connected with the second discharge unit and the second discharge structure.
Further, a third control channel is arranged inside the first connecting frame; the second control channel is communicated with the third control channel; and the second locking wire enters the interior of the conducting assembly through a second control channel and a third control channel in sequence.
The conducting assembly comprises a conducting shell, a first connecting structure and a resetting device; the first connecting structure and the resetting device are both arranged in the conduction shell; one end of the reset device is connected with the first discharge arm, and the other end of the reset device is connected with the conduction shell; one end of the first connecting structure is connected with the first discharging arm, and the other end of the first connecting structure is connected with the control assembly.
Furthermore, the control assembly comprises a control shell, a first control structure, a second reset structure and a locking assembly, wherein the control shell is arranged at one end of the conduction assembly, which is far away from the discharge assembly; the first control structure, the second reset structure and the locking assembly are all arranged in the control shell.
Further, the first control structure is rotatably connected with the control shell; one end of the second reset structure is connected with the control shell, and the other end of the second reset structure is connected with the first control structure; the locking assembly is connected with the first locking wire and the second locking wire.
The invention has the beneficial effects that: the shape of the clamp arm is adjusted according to the actual requirements of a patient by adopting a brand-new adjustable clamp arm, so that the whole clamp arm is flexible and changeable; the forceps arms are provided with a plurality of pairs of dischargers, and high-frequency high-voltage alternating current is output at the same time, so that the ablation tissue area is increased, and the effect of comprehensive ablation is achieved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a discharge assembly of the present invention;
FIG. 3 is a schematic view of a control assembly of the present invention;
FIG. 4 is a cross-sectional view of a discharge assembly of the present invention;
FIG. 5 is a cross-sectional view of a conductive assembly of the present invention;
FIG. 6 is a cross-sectional view of the control assembly of the present invention;
in the figure, 1, a discharge assembly; 11. a first connecting frame; 12. a first discharge arm; A. a discharger; 121. a first discharge structure; 122. a first discharge unit; 123. a first rotating unit; 124. a closing unit; 13. a second discharge arm; 131. a second discharge structure; 132. a second discharge unit; 133. a second rotating unit; 2. a conductive component; 21. a conductive housing; 22. a first reset pull rod; 23. a first connecting structure; 24. a first reset structure; 3. a control component; 31. a control housing; 32. a first control structure; 33. a second reset structure; 331. a fixing plate; 332. a rotating shaft; 34. a locking assembly; 341. a first locking knob; 342. a first locking bracket; 343. a second locking knob; 344. a second locking bracket.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to specific embodiments, and it is obvious that the described embodiments are only two partial embodiments of the present invention, rather than all embodiments, and other advantages and effects of the present invention can be easily understood by those skilled in the art from the disclosure of the present specification. The present invention can be implemented or applied by other different specific embodiments, and the features in the following embodiments and embodiments can be combined with each other without conflict, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
1-2, the novel radio frequency ablation forceps for surgical operation comprises a discharge component 1, a conduction component 2 and a control component 3; one end of the conduction assembly 2, which is far away from the discharge assembly 1, is connected with the control assembly 3; the discharge assembly 1 comprises a first connecting frame 11, a first discharge arm 12 and a second discharge arm 13; one end of the first connecting frame 11 is connected with the conducting assembly 2, the middle part of the first connecting frame is connected with the first discharge arm 12, and the other end of the first connecting frame is connected with the second discharge arm 13; a first rotating unit 123 for adjusting the shape of the first discharge arm 12 is arranged inside the first discharge arm 12, and the first rotating unit 123 is connected with the first discharge arm 12; a second rotating unit 133 for adjusting the shape of the second discharge arm 13 is disposed inside the second discharge arm 13, and the second rotating unit 133 is connected to the second discharge arm 13.
In some embodiments of the present application, the first connecting frame 11 is detachably connected to the conducting assembly 2, the first connecting frame 11 is rotatably connected to the first discharge arm 12, and the first connecting frame 11 is rotatably connected to the second discharge arm 13. For example: the first connecting frame 11 is connected with the conducting assembly 2 through a buckle; the first connecting frame 11 is connected with the conducting assembly 2 through threads; the first connecting frame 11 is bolted to the conducting assembly 2.
The first discharge arm 12 includes a first discharge structure 121, a first discharge unit 122 and a closing unit 124; one end of the closing unit 124 is connected to the first connection frame 11, and the other end is connected to the first discharge unit 122; the first discharge structure 121 is disposed in a direction in which the first discharge cell 122 is away from the closing cell 124. More than two first discharge cells 122, preferably four first discharge cells 122, are provided. In some embodiments of the present application, the first discharge unit 122 and the closing unit 124 are connected through the first rotation unit 123; the first discharge unit 122 is connected to the adjacent first discharge unit 122 through the first rotation unit 123; the first discharge unit 122 is connected to the first discharge structure 121 through the first rotation unit 123. The first discharge unit 122 is rotatably connected to the first rotating unit 123, the first discharge unit 122 is rotatably connected to the closing unit 124, and the first discharge structure 121 is rotatably connected to the first rotating unit 123. Optionally, one end of the closing unit 124 close to the first discharge unit 122 is a spherical structure, the first discharge unit 122 is a cylindrical structure with spherical grooves at two ends, and the spherical grooves on the first discharge unit 122 are matched with the spherical ends of the closing unit 124. The first rotating unit 123 is a ball-shaped structure, and the diameter of the first rotating unit 123 is equal to the diameter of the ball-shaped end of the closing unit 124. One end of the first discharge structure 121 close to the first discharge unit 122 is provided with a spherical recess identical to the first discharge unit 122, and the spherical recess on the first discharge structure 121 is matched with the first rotation unit 123.
A discharger A is arranged on the side wall of the first discharge arm 12 facing the second discharge arm 13; the discharger a is connected to the first discharge unit 122 and the first discharge structure 121, respectively. In some embodiments of the present application, the dischargers a are electrodes respectively disposed on the sidewalls of the first discharge cells 122 facing the second discharge arm 13, and the electrodes are disposed on the sidewalls of the first discharge structures 121 facing the second discharge arm 13. The electrode is connected with the control component 3, and the control component 3 controls the electrode to be electrified and cut off.
The second discharge arm 13 includes a second discharge structure 131 and a second discharge unit 132; the second discharge unit 132 is connected to the first connection frame 11; the second discharge structure 131 is disposed in a direction in which the second discharge cell 132 is away from the first link frame 11. In some embodiments of the present application, the second discharge unit 132 is rotatably coupled to the first link frame 11.
Two or more second discharge cells 132 are provided. The number of the second discharge cells 132 is equal to that of the first discharge cells 122. In some embodiments of the present application, the second discharge cell 132 is connected to an adjacent second discharge cell 132 through a second rotation cell 133; the second discharge unit 132 is connected to the second discharge structure 131 through the second rotation unit 133. The second discharge unit 132 is rotatably connected to the second rotation unit 133, and the second discharge structure 131 is rotatably connected to the second rotation unit 133. Alternatively, one end of the first connecting frame 11 close to the second discharge unit 132 is a spherical structure, the second discharge unit 132 is a cylindrical structure with spherical grooves at two ends, and the spherical grooves on the second discharge unit 132 are matched with the spherical ends of the first connecting frame 11. The second rotating unit 133 has a spherical structure, and the diameter of the second rotating unit 133 is equal to the diameter of the spherical end of the closing unit 124. One end of the second discharge structure 131 close to the second discharge unit 132 is provided with a spherical recess identical to the second discharge unit 132, and the spherical recess on the second discharge structure 131 is matched with the second rotation unit 133.
The second discharge arm 13 is provided with a discharger A on the side wall facing the first discharge arm 12; the discharger a is connected to the second discharge unit 132 and the second discharge structure 131, respectively. In some embodiments of the present application, the dischargers a are electrodes respectively disposed on the sidewalls of the second discharge cells 132 facing the first discharge arm 12, and the electrodes are disposed on the sidewalls of the second discharge structures 131 facing the first discharge arm 12. The electrode is connected with the control component 3, and the control component 3 controls the electrode to be electrified and cut off.
As shown in fig. 4, the discharge assembly 1 is shown in cross-section. A first control channel is arranged inside the first discharge arm 12; a first locking wire is arranged in the first control channel; the first locking wire passes through the first control channel into the interior of the conductive assembly 2. In some embodiments of the present application, a first through hole is provided inside the first discharge structure 121; a second through hole is formed in the first discharge cell 122; a third through hole is formed in the first rotating unit 123; a first passage is arranged inside the closing unit 124; the first through hole, the second through hole, the third through hole and the first passage are connected to form a first control channel. A fourth control channel is arranged in the first connecting frame 11, and the first control channel is communicated with the fourth control channel. The connection point of the first control channel and the fourth control channel is located on the rotation axis of the closing unit 124 and the first connecting frame 11, and when the closing unit 124 rotates, the communication between the first control channel and the fourth control channel is not affected. A first locking wire is arranged in the first control channel. One end of the first locking wire is connected with the first discharge structure 121, and the first locking wire sequentially passes through the first through hole, the second through hole, the third through hole, the first passage and the fourth control channel and then enters the interior of the conduction assembly 2; one end of the first locking wire, which is far away from the first discharge structure 121, is connected with the control component 3. The first locking wire is loosened to adjust the shape of the first discharge arm 12, and then the first locking wire is tightened to maintain the adjusted shape of the first discharge arm 12.
A second control channel is arranged inside the second discharge arm 13; a third control channel is arranged in the first connecting frame 11; the second control channel is communicated with the third control channel; a second locking wire is arranged in the second control channel; the second locking wire enters the interior of the conducting component 2 through a second control channel and a third control channel in sequence.
A fourth through hole is formed in the second discharge structure 131; a fifth through hole is formed in the second discharge unit 132; a sixth through hole is formed in the second rotating unit 133; a third control channel is arranged in the first connecting frame 11; the fourth through hole, the fifth through hole and the sixth through hole are connected into a second control channel; a second locking wire is arranged in the second control channel; one end of the second locking wire is connected with the second discharge structure 131, and sequentially passes through the fourth through hole, the fifth through hole, the sixth through hole and the third control channel to enter the conduction assembly 2; one end of the second locking wire far away from the second discharge structure 131 is connected with the control assembly 3. The second locking wire is loosened to adjust the shape of the second discharge arm 13, and then the second locking wire is tightened to maintain the adjusted shape of the second discharge arm 13.
The conductive assembly 2 as shown in fig. 4-6, which includes a conductive housing 21, a first connecting structure 23 and a reset device; the first connecting structure 23 and the resetting means are both arranged inside the conductive shell 21; one end of the reset device is connected with the first discharge arm 12, and the other end is connected with the conductive shell 21; one end of the first connecting structure 23 is connected to the first discharge arm 12, and the other end is connected to the control component 3. Alternatively, the closing unit 124 is slidably connected with the resetting device, and the closing unit 124 is fixedly connected with the first connecting structure 23. Alternatively, the interior of the conductive housing 21 is provided with a working channel for defining a path for the first locking wire and the second locking wire. The working pipeline is arranged on the side wall of the conduction shell 21 and is fixedly connected with the conduction shell 21. First locking silk and second locking silk all set up in the inside of working line, first locking silk and second locking silk all with working line sliding connection. Preferably, the first locking wire and the second locking wire are arranged in different working pipelines. To prevent the first locking wire from becoming entangled with the second locking wire during use.
In some embodiments of the present application, a side of the closing unit 124 away from the first discharge arm 12 is provided with a second link for connecting with the reset device and a third link for connecting with the first connection structure 23, the second link being located in a direction toward the first discharge arm 12. The second connecting frame and the third connecting frame are both fixedly connected with the closing unit 124, the second connecting frame is slidably connected with the resetting device, and the third connecting frame is bound and connected with the first connecting structure 23.
Alternatively, the first connecting structure 23 is a steel wire. One end of the wire is tied to the third link and the other end is tied to the first control structure 32. The first control structure 32 is applied to pull the steel wire which pulls the closing unit 124 towards the second discharge arm 13, closing the discharge assembly 1. Releasing the first control structure 32, the reset means pulls the closing unit 124 to rotate, causing the discharge assembly 1 to relax.
In some embodiments of the present application, the return device includes a first return link 22 and a first return structure 24; one end of the first reset pull rod 22 is connected with the first discharge arm 12, and the other end is connected with the first reset structure 24; an end of the first reset structure 24 distal from the first reset lever 22 is connected to the conductive shell 21. The first restoring structure 24 is a tension spring.
In other embodiments of the present application, the reduction device comprises a first reduction wire and a first reduction structure 24; one end of the first reset steel wire is connected with the first discharge arm 12, and the other end is connected with the first reset structure 24; the end of the first reduction structure 24 remote from the first reduction wire is connected to the conductive housing 21. The first restoring structure 24 is a tension spring.
The control assembly 3 shown in fig. 3 and 6 comprises a control housing 31, a first control structure 32, a second reset structure 33 and a locking assembly 34, wherein the control housing 31 is disposed at an end of the conducting assembly 2 away from the discharging assembly 1, and the control housing 31 is detachably connected to the conducting assembly 2; the first control structure 32, the second reset structure 33, and the locking assembly 34 are disposed within the control housing 31. Alternatively, the control housing 31 is bolted to the conductive assembly 2. Alternatively, the control housing 31 is threadedly connected to the conductive assembly 2. The first control structure 32 is rotatably connected to the control housing 31. The second reset structure 33 is connected with the control housing 31 in a heat seal manner. In some embodiments of the present application, the second restoring structure 33 is glued to the control housing 31.
In some embodiments of the present application, the control housing 31 is divided into two left and right symmetrical parts, which are inserted into each other and locked by bolts. The two-piece control housing 31 facilitates manufacturing and also facilitates installation of the first control structure 32, the second reset structure 33 and the locking assembly 34.
The first control structure 32 is rotatably connected to the control housing 31. The second reset mechanism 33 is coupled to the control housing 31 at one end and to the first control mechanism 32 at the other end. In some embodiments of the present application, the fixing plate 331 and the rotating shaft 332 are disposed inside the control housing 31, and both the fixing plate 331 and the rotating shaft 332 are fixedly connected to the control housing 31. The second restoring structure 33 has one end connected to the fixing plate 331 and the other end connected to the first control structure 32. The first control structure 32 is rotatably coupled to the shaft 332. Alternatively, the second restoring structure 33 has one end thermally connected to the fixing plate 331 and the other end bonded to the first control structure 32 by glue. Optionally, one end of the second restoring structure 33 is thermally connected to the fixing plate 331, and the other end is thermally connected to the first control structure 32. Alternatively, one end of the second restoring structure 33 is glued to the fixing plate 331 and the other end is glued to the first control structure 32. Alternatively, one end of the second restoring structure 33 is glued to the fixing plate 331, and the other end is thermally connected to the first control structure 32.
The locking assembly 34 is connected to the first locking wire and the second locking wire. The locking assembly 34 includes a first locking unit and a second locking unit. The first locking unit is connected with the first locking wire, and the second locking unit is connected with the second locking wire. And the tightness of the first locking wire is adjusted by using the first locking unit. The first locking wire is loosened to adjust the shape of the first discharge arm 12, and then the first locking wire is tightened to maintain the adjusted shape of the first discharge arm 12. And the tightness of the second locking wire is adjusted by using the second locking unit. The second locking wire is loosened to adjust the shape of the second discharge arm 13, and then the second locking wire is tightened to maintain the adjusted shape of the second discharge arm 13. In some embodiments of the present application, the locking assembly 34 is disposed at an end of the control housing 31 distal from the conductive housing 21, and the locking assembly 34 is fixedly coupled to the control housing 31.
In some embodiments of the present application, a limiting conduit for defining the path of the first locking wire and the second locking wire is disposed inside the control housing 31. The limiting pipeline is arranged on the side wall of the control shell 31 and is fixedly connected with the control shell 31. First locking silk and second locking silk all set up in the inside of spacing pipeline, first locking silk and second locking silk all with spacing pipeline sliding connection. Preferably, the first locking wire and the second locking wire are arranged in different limiting pipelines. To prevent the first locking wire from becoming entangled with the second locking wire during use.
In some embodiments of the present application, the first locking unit includes a first locking knob 341 and a first locking bracket 342; the first locking knob 341 is rotatably connected to the first locking bracket 342, and the first locking bracket 342 is fixedly connected to the control housing 31. The first locking wire is connected to the first locking knob 341 after passing through the first locking bracket 342. Rotating the first locking knob 341 to wind the first locking wire around the first locking knob 341 to tighten the first locking wire and drive the first discharge arm 12 to maintain the adjusted shape; the first locking knob 341 pulls the first locking wire to make the first discharge structure 121, the first discharge unit 122, the first rotation unit 123 and the closing unit 124 in the first discharge arm 12 closely attached to each other, and applies friction to fix the relative positions of the components in the first discharge arm 12; correspondingly, the first locking wire is fixedly connected with the first discharge arm 12, and when the first locking wire is tightened, the first locking wire pulls the first locking knob 341 to cling to the inner wall of the first locking bracket 342, and the relative position between the first locking knob 341 and the first locking bracket 342 is locked by applying friction force. The first locking knob 341 is turned over to release the first locking wire from the first locking knob 341 to loosen the first locking wire, the shape of the first discharge arm 12 can be adjusted at will, and after the adjustment to the target shape, the first locking knob 341 is turned to lock the first discharge arm 12.
In some embodiments of the present application, the second locking unit includes a second locking knob 343 and a second locking bracket 344; the second locking knob 343 is rotatably coupled to the second locking bracket 344, and the second locking bracket 344 is fixedly coupled to the control housing 31. The second locking wire passes through the second locking bracket 344 and is connected to the second locking knob 343. Rotating the second locking knob 343 to wind the second locking wire around the second locking knob 343, so that the second locking wire is tightened to drive the second discharge arm 13 to maintain the adjusted shape; the second locking knob 343 pulls the second locking wire to make the second discharging structure 131, the second discharging unit 132, the second rotating unit 133 and the first connecting frame 11 closely attached to each other, and applies friction to fix the relative positions of the components inside the second discharging arm 13 and fix the relative positions of the second discharging arm 13 and the first connecting frame 11; correspondingly, the second locking wire is fixedly connected to the second discharge arm 13, and when the second locking wire is tightened, the second locking wire pulls the second locking knob 343 to cling to the inner wall of the second locking bracket 344, and the relative position between the second locking knob 343 and the second locking bracket 344 is locked by applying a friction force. The second locking knob 343 is reversed to release the second locking wire from the second locking knob 343, so that the second locking wire is loosened, the shape of the second discharge arm 13 can be adjusted at will, and after the second locking knob 343 is rotated to lock the first discharge arm 12.
The using method comprises the following steps:
1) the shape of the discharge assembly 1 is adjusted according to the patient condition:
1-1) loosening the locking assembly 34, and loosening the first locking wire and the second locking wire to enable the first discharge arm 12 and the second discharge arm 13 to enter a loosening state, so as to adjust the shapes of the first discharge arm 12 and the second discharge arm 13;
1-2) adjusting the first discharge arm 12 and the second discharge arm 13 to proper shapes, locking by using a locking assembly 34 to tighten the first locking wire and the second locking wire, and fixing the shapes of the first discharge arm 12 and the second discharge arm 13 by using friction force;
2) and connecting a power supply to perform the operation.
The above description of the embodiments is only for the understanding of the present invention. It should be noted that modifications could be made to the invention without departing from the principle of the invention, which would also fall within the scope of the claims of the invention.
Claims (4)
1. A novel radio frequency ablation forceps for surgical operation comprises a discharge assembly, a conduction assembly and a control assembly; the device is characterized in that one end of the conduction assembly, which is far away from the discharge assembly, is connected with the control assembly; the discharge assembly comprises a first connecting frame, a first discharge arm and a second discharge arm; one end of the first connecting frame is connected with the conduction assembly, the middle part of the first connecting frame is connected with the first discharge arm, and the other end of the first connecting frame is connected with the second discharge arm; a first rotating unit for adjusting the shape of the first discharge arm is arranged in the first discharge arm, and the first rotating unit is connected with the first discharge arm; a second rotating unit used for adjusting the shape of the second discharge arm is arranged in the second discharge arm, and the second rotating unit is connected with the second discharge arm; a first control channel is arranged in the first discharge arm; a first locking wire is arranged in the first control channel; a second control channel is arranged in the second discharge arm; a second locking wire is arranged in the second control channel; the first discharge arm comprises a first discharge structure, a first discharge unit and a closing unit; one end of the closing unit is connected with the first connecting frame, and the other end of the closing unit is connected with the first discharging unit; the first discharge structure is arranged in the direction of the first discharge unit far away from the closing unit; a discharger is arranged on the side wall of the first discharge arm facing the second discharge arm; a fourth control channel is arranged in the first connecting frame; the first control channel is communicated with the fourth control channel; the first locking wire sequentially enters the interior of the conducting assembly through the first control channel and the fourth control channel; the second discharge arm comprises a second discharge structure and a second discharge unit; the second discharge unit is connected with the first connecting frame; the second discharge structure is arranged in the direction of the second discharge unit far away from the first connecting frame; a third control channel is arranged in the first connecting frame; the second control channel is communicated with the third control channel; the second locking wire enters the interior of the conducting assembly through a second control channel and a third control channel in sequence; a discharger is arranged on the side wall of the second discharge arm facing the first discharge arm; the first discharge arm comprises a first discharge structure, a first discharge unit and a closing unit; one end of the closing unit is connected with the first connecting frame, and the other end of the closing unit is connected with the first discharging unit; the first discharge structure is arranged in the direction of the first discharge unit far away from the closing unit; the first discharging unit is connected with the closing unit through the first rotating unit; the first discharge unit is connected with the adjacent first discharge unit through the first rotating unit; the first discharge unit is connected with the first discharge structure through the first rotating unit; the first discharging unit is rotationally connected with the first rotating unit, the first discharging unit is rotationally connected with the closing unit, and the first discharging structure is rotationally connected with the first rotating unit; one end of the closing unit, which is close to the first discharge unit, is of a spherical structure, the first discharge unit is of a columnar structure, two ends of the columnar structure are provided with spherical grooves, and the spherical grooves in the first discharge unit are matched with the spherical ends of the closing unit; the first rotating unit is of a spherical structure, and the diameter of the first rotating unit is equal to that of the spherical end of the closing unit; one end of the first discharge structure, which is close to the first discharge unit, is provided with a spherical groove which is the same as the first discharge unit, and the spherical groove on the first discharge structure is matched with the first rotating unit; the number of the second discharge units is equal to that of the first discharge units; the second discharge unit is connected with the adjacent second discharge unit through a second rotation unit; the second discharge unit is connected with the second discharge structure through a second rotation unit; the second discharging unit is rotationally connected with the second rotating unit, and the second discharging structure is rotationally connected with the second rotating unit; one end of the first connecting frame, which is close to the second discharge unit, is of a spherical structure, the second discharge unit is of a columnar structure, two ends of the columnar structure are provided with spherical grooves, and the spherical grooves in the second discharge unit are matched with the spherical ends of the first connecting frame; the second rotating unit is of a spherical structure, and the diameter of the second rotating unit is equal to that of the spherical end of the closing unit; one end of the second discharge structure, which is close to the second discharge unit, is provided with a spherical groove which is the same as the second discharge unit, and the spherical groove on the second discharge structure is matched with the second rotation unit; a first control channel is arranged in the first discharge arm; a first locking wire is arranged in the first control channel; the first locking wire penetrates through the first control channel to enter the interior of the conducting assembly; a first through hole is formed in the first discharge structure; a second through hole is formed in the first discharge unit; a third through hole is formed in the first rotating unit; a first passage is arranged in the closed unit; the first through hole, the second through hole, the third through hole and the first passage are connected to form a first control channel; a fourth control channel is arranged in the first connecting frame, and the first control channel is communicated with the fourth control channel; the connecting point of the first control channel and the fourth control channel is positioned on the rotating shaft center of the closing unit and the first connecting frame, and when the closing unit rotates, the communication between the first control channel and the fourth control channel is not influenced; a first locking wire is arranged in the first control channel; one end of the first locking wire is connected with the first discharge structure, and the first locking wire sequentially passes through the first through hole, the second through hole, the third through hole, the first passage and the fourth control channel and then enters the interior of the conduction assembly; one end of the first locking wire, which is far away from the first discharging structure, is connected with the control component; and loosening the first locking wire to adjust the shape of the first discharge arm, and then tightening the first locking wire to enable the first discharge arm to keep the adjusted shape.
2. The novel surgical rf ablation forceps of claim 1, wherein the conductive assembly includes a conductive housing, a first connecting structure, and a reduction device; the first connecting structure and the resetting device are both arranged in the conductive shell; one end of the reset device is connected with the first discharge arm, and the other end of the reset device is connected with the conduction shell; one end of the first connecting structure is connected with the first discharging arm, and the other end of the first connecting structure is connected with the control assembly.
3. The novel surgical rf ablation forceps of claim 1, wherein the control assembly includes a control housing, a first control structure, a second reduction structure and a locking assembly, the control housing is disposed at an end of the conductive assembly distal from the discharge assembly; the first control structure, the second reset structure and the locking assembly are all arranged in the control shell.
4. The novel surgical rf ablation forceps of claim 3, wherein the first control structure is rotatably coupled to the control housing.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1913841A (en) * | 2004-01-27 | 2007-02-14 | 日本生命线株式会社 | Ablation catheter |
| CN106102628A (en) * | 2014-03-20 | 2016-11-09 | 阿特里卡思股份公司 | Ablation catheter and ablation apparatus |
| CN114554988A (en) * | 2019-09-04 | 2022-05-27 | 艾格医疗技术公司 | Ablation apparatus for treating a target region of tissue in an organ |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9072522B2 (en) * | 2001-12-04 | 2015-07-07 | Atricure, Inc. | Adjustable clamp systems and methods |
| ES2961869T3 (en) * | 2015-05-13 | 2024-03-14 | Shanghai Golden Leaf Med Tec Co Ltd | Corrugated radiofrequency ablation catheter and its apparatus |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1913841A (en) * | 2004-01-27 | 2007-02-14 | 日本生命线株式会社 | Ablation catheter |
| CN106102628A (en) * | 2014-03-20 | 2016-11-09 | 阿特里卡思股份公司 | Ablation catheter and ablation apparatus |
| CN114554988A (en) * | 2019-09-04 | 2022-05-27 | 艾格医疗技术公司 | Ablation apparatus for treating a target region of tissue in an organ |
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