CN112587228B - Bipolar tissue closer - Google Patents
Bipolar tissue closer Download PDFInfo
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- CN112587228B CN112587228B CN202011471135.8A CN202011471135A CN112587228B CN 112587228 B CN112587228 B CN 112587228B CN 202011471135 A CN202011471135 A CN 202011471135A CN 112587228 B CN112587228 B CN 112587228B
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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
- A61B18/1206—Generators therefor
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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
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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
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00607—Coagulation and cutting with the same instrument
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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
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1412—Blade
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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
- A61B2018/1452—Probes having pivoting end effectors, e.g. forceps including means for cutting
- A61B2018/1455—Probes having pivoting end effectors, e.g. forceps including means for cutting having a moving blade for cutting tissue grasped by the jaws
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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
- A61B2018/1462—Tweezers
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Abstract
The present invention relates to a tissue closure, in particular to a bipolar tissue closure, comprising: the two forceps bodies act on the clamped tissue through the conducted current; the first power device provides power for the relative rotation of the two forceps bodies; a cutting blade for cutting the clamped tissue; the second power device provides power for the linear motion of the cutting blade; the first power unit includes: the power supply assembly drives the forceps body push-pull rod body connected with at least one forceps body to linearly move under the force application of an operator, so that the two forceps bodies are opened and closed; and the stopping rod body stops the second power device when an operator does not operate the stopping rod body, and the second power device is released after the operator operates the stopping rod body in place. According to the invention, the stop rod body is arranged in the first power device, and the second power device can not realize operation when the two forceps bodies are not closed, so that the injury to a human body is avoided, the multifunctional operation is met, and the safety of a product is improved.
Description
Technical Field
The invention relates to the technical field of closers, in particular to a bipolar tissue closer.
Background
The bipolar tissue closer consists of a double-petal forceps body and an electrode seat, the tail ends of the double-petal forceps body are respectively connected with the electrode seat, and a high-frequency input plug is arranged on the electrode seat. The bipolar tissue closer can carry out more meticulous electricity congeals hemostasis and processing to little blood vessel and other structures, and the principle is that high frequency current makes protein dissolve the degeneration, under the pressure effect of the bivalve tweezers body, makes the fusing of vascular wall form with the zona pellucida that distinguishes around to produce permanent lumen closure and reach hemostasis, when the tissue accomplishes the degeneration and fuses, can the auto-power-off.
The double-petal forceps body of the existing bipolar tissue closer is provided with forceps tips, the forceps tips and the double-petal forceps body are integrally formed, an insulating layer is arranged on the outer surface of the double-petal forceps body, the forceps tip part is exposed, only current is conducted between the forceps tips, the current is conducted from one forceps tip to the other forceps tip during electric coagulation, the tissue between the two forceps tips is under the action of the current, and the tissue outside the forceps tips is little or not influenced. Because the action range of the forceps is limited between two ends of the forceps, the degree of damage and the influence range to adjacent tissues are small, and the forceps are quite safe.
At present, the traditional bipolar tissue closer has single function, simple structure and poor safety in the operation process, and how to improve the multifunction of the product and improve the reliability of the performance becomes a technical problem to be solved urgently by the technical personnel in the field.
In view of the above problems, the present designer is based on the practical experience and professional knowledge of many years of engineering application of such products, and is engaged with the application of theory to actively make research and innovation, so as to create a bipolar tissue closer, which is more practical.
Disclosure of Invention
The present invention provides a bipolar tissue closure which effectively addresses the problems of the background art.
In order to achieve the purpose, the invention adopts the technical scheme that:
a bipolar tissue closure comprising:
the two forceps bodies rotate relatively to realize opening and closing, and act on the clamped tissue through conducted current to dissolve and denature collagen and fibrin in the tissue and fuse the vessel wall, so that permanent lumen closing is formed;
the first power device provides power for the relative rotation of the two forceps bodies;
the cutting blade is arranged between the two forceps bodies and is used for cutting the clamped tissue;
the second power device is used for providing power for the linear motion of the cutting blade;
the first power unit includes:
the power supply assembly drives the forceps body push-pull rod body connected with at least one forceps body to linearly move under the force application of an operator, so that the two forceps bodies are opened and closed;
and the stopping rod body stops the second power device to limit the operation of the second power device when an operator does not operate the second power device, and the stopping rod body releases the stop of the second power device after the operator operates the power supply assembly in place.
Further, the power supply assembly includes:
the holding connecting rod comprises a first rotating shaft body, a stress section and a connecting section, wherein the stress section and the connecting section are respectively arranged on two sides of the first rotating shaft body, an included angle between the stress section and the connecting section is smaller than 90 degrees, and the first rotating shaft body rotates around a fixed axis;
the force transmission rod body comprises a rotating connecting end and a first linear moving end, the rotating connecting end is rotatably connected with the tail end of the connecting section, and the first linear moving end moves along the linear moving direction of the forceps body push-pull rod body under the limitation of the linear guide groove;
the first linear moving end is rotatably connected with the end part of the forceps body push-pull rod body.
Furthermore, one end of the stopping rod body is rotatably connected with the middle of the stress section, a guide rod is arranged in the middle of the stopping rod body, the stress section drives the stopping rod body to move, the guide rod moves along the guide groove in an adaptive mode, and the other end of the stopping rod body stops the second power device.
Further, the connecting side of the stopping rod body and the stressed section comprises two parts which are symmetrically arranged relative to the stressed section.
Further, still be provided with locking device, locking device includes:
the middle part of the lock rod is fixedly connected with the power supply assembly, and two ends of the lock rod are freely arranged;
the locking block moves along a straight line and comprises a left group of extrusion guide surfaces, a right group of concave locking grooves and a connecting surface which are sequentially connected; the two ends of the lock rod extrude the extrusion guide surface under the force application of an operator, and the lock rod enters the sunken locking groove from top to bottom along the extrusion guide surface, and when the operator applies force for the second time, the lock rod leaves the sunken locking groove from top to bottom and returns through the lower part of the connecting surface;
and the extrusion spring is arranged at the bottom of the locking block and used for providing resetting force for the locking block.
Further, the second power device comprises a stop block, a slide way, a connecting rod, a force application rod, a return spring and a moving block;
the reset spring is sleeved on the periphery of the forceps body push-pull rod body, one end of the reset spring is blocked by the stop block, and the stop block is fixedly arranged;
the slide way is fixedly arranged, one end of the connecting rod is linearly guided, the guiding direction is parallel to the length direction of the forceps body push-pull rod body, the other end of the connecting rod is rotatably connected with one end of the force application rod, the middle part of the force application rod is rotatably arranged through a fixed axis, and the other end of the force application rod is used for applying force to an operator;
the moving block is rotatably connected with a second linear movement end of the connecting rod and synchronously linearly moves with the second linear movement end, and the moving block is sleeved on the periphery of the tweezer body push-pull rod body and is attached to the other end of the reset spring;
the force bearing ends of the slide way and the force application rod are respectively positioned on two sides of the forceps body push-pull rod body, and the moving block drives the cutting blade to perform linear motion.
Further, the connecting side of the force application rod and the connecting rod comprises two parts which are symmetrically arranged relative to the connecting rod.
Furthermore, one of the forceps bodies is of a split structure and comprises a fixed section and a rotating section, the other forceps body is of an integral structure and rotates relative to the fixed section, the fixed section and the rotating section are rotationally connected with a rotating shaft perpendicular to the length direction of the forceps body push-pull rod body through an axis, and when the rotating section rotates to the limit position relative to the fixed section, the forceps bodies of the split structure form a flat clamping surface.
Furthermore, the fixed section is further provided with an elastic blocking piece, and when the rotating section rotates to the limit position, the elastic blocking piece generates acting force on the rotating section, so that the rotating section generates a trend of rotating towards the direction far away from the limit position.
Further, an insulating bulge is arranged on the clamping surface of at least one of the forceps bodies.
Through the technical scheme, the invention has the beneficial effects that:
in the invention, through the arrangement of the two forceps bodies and the cutting blade, the tissue can be closed and cut off at the same time, the multifunctionality is obtained, and in order to avoid misoperation between function switching, the stop rod body is arranged in the first power device, and the second power device can not realize operation when the two forceps bodies are not closed through the arrangement of the stop rod body, so that the injury to a human body is avoided, the multifunctional operation is met, and the safety of a product is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a bipolar tissue closure (with the outer housing omitted);
figure 2 is a front view of figure 1 (including a partial display of the two pincer bodies closed and the cutting blade performing a cutting action);
FIG. 3 is a schematic structural diagram of a first power plant;
FIG. 4 is a schematic structural view (including a simplified structural view) of a holding link;
FIG. 5 is a schematic view of a force transfer rod (including a simplified schematic view);
FIG. 6 is an enlarged view of a portion of the locking lever in the position where the locking lever is disposed;
FIG. 7 is a schematic structural view of a lock block;
FIG. 8 is a cross-sectional view of the locking piece;
FIG. 9 is a schematic structural view of the force application rod;
FIG. 10 is a schematic view of the structure at the position of two forceps bodies;
FIG. 11 is an enlarged view of a portion of FIG. 10 at A;
FIG. 12 is a schematic structural view of one of the forceps bodies;
FIG. 13 is an enlarged view of a portion of FIG. 12 at B;
description of the drawings:
1. a forceps body; 11. a fixed section; 12. a rotating section; 13. a rotating shaft; 14. an elastic baffle plate; 15. an insulating protrusion; 2. a first power unit; 21. a power supply assembly; 211. a first rotation shaft body; 212. a stress section; 213. a connecting section; 214. rotating the connecting end; 215. a first linear motion end; 22. a stopper rod body; 22a, a guide rod; 3. a cutting blade; 4. a second power unit; 41. a stopper; 42. a slideway; 43. a connecting rod; 44. a force application rod; 45. a return spring; 46. a moving block; 5. a locking device; 51. a lock lever; 52. a locking block; 52a, a pressing guide surface; 52b, a recessed locking groove; 52c, connecting surface; 53. a compression spring; 6. the forceps body pushes the pull rod body.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
1-3, a bipolar tissue closure device, comprising: the two forceps bodies 1 rotate relatively to realize opening and closing, and act on the clamped tissue through conducted current to dissolve and denature collagen and fibrin in the tissue and fuse the vessel wall, so that permanent lumen closing is formed; the first power device 2 is used for providing power for the relative rotation of the two forceps bodies 1; the cutting blade 3 is arranged between the two forceps bodies 1 and is used for cutting the clamped tissue; a second power device 4 for providing power for the linear movement of the cutting blade 3; the first power unit 2 includes: the power supply assembly 21 drives the forceps body push-pull rod body 6 connected with at least one forceps body 1 to linearly move under the force application of an operator, so that the two forceps bodies 1 are opened and closed; the stopper lever 22 stops the second power unit 4 to restrict the operation thereof when the operator does not operate the second power unit, and releases the stop of the second power unit 4 when the operator operates the power supply unit 21 to a proper position.
In the invention, through the arrangement of the two forceps bodies 1 and the cutting blade 3, the tissue can be cut off while being closed, and the multifunctionality is obtained, of course, a groove body allowing the cutting blade 3 to move is required to be arranged on the two forceps bodies 1, and the cutting off action can be selectively carried out according to the actual requirement. In the process that the two forceps bodies 1 rotate relatively, one of the forceps bodies 1 can be fixed, the other forceps body 1 can rotate relatively, the two forceps bodies can rotate oppositely at the same time, the linear motion form is converted into the rotation form, the forceps body push-pull rod body 6 can be conveniently realized in a connecting rod combination mode, in order to guarantee the attractiveness of a product, the forceps body push-pull rod body 6 can be structurally coated in the forceps body push-pull rod body 6 in a mode of arranging the outer tube body, the connection relation can be established with the power supply assembly 21 only at the exposed local position of the end part of the outer tube body, and the technical modes can be obtained in the prior art.
In order to avoid misoperation between function switching, in the invention, the stop rod body 22 is arranged in the first power device 2, and the second power device 4 can not realize operation when the two forceps bodies 1 are not closed through the arrangement of the stop rod body 22, so that the injury to a human body is avoided, the multifunctional operation is met, and the safety of a product is improved.
As a preference of the above embodiment, as shown in fig. 4 and 5, the power supply unit 21 includes: the holding connecting rod comprises a first rotating shaft body 211, a stress section 212 and a connecting section 213, wherein the stress section 212 and the connecting section 213 are respectively arranged at two sides of the first rotating shaft body 211, an included angle between the stress section 212 and the connecting section 213 is smaller than 90 degrees, and the first rotating shaft body 211 rotates around a fixed axis; the force transmission rod body comprises a rotating connecting end 214 and a first linear movement end 215, the rotating connecting end 214 is rotatably connected with the tail end of the connecting section 213, and the first linear movement end 215 moves along the linear movement direction of the forceps body push-pull rod body 6 under the limitation of the linear guide groove; wherein, the first linear moving end 215 is rotatably connected with the end of the forceps body push-pull rod body 6.
In the preferred embodiment, the angles of the force-transmitting rod body and the force-transmitting rod body are set at the same side of the forceps body push-pull rod body 6 by the angle of the force-receiving section 212 and the angle of the connecting section 213 in the holding connecting rod, so that the space is efficiently utilized, and the whole power supply assembly 21 effectively ensures the transmission of the rotational power and the linear power by the rotation limitation of the axis of the first rotational shaft body 211 and the linear motion limitation of the first linear motion end 215.
As a preferred embodiment, an annular groove body may be disposed at the end of the forceps body pulling rod body 6, and the first linear motion end 215 is partially disposed in the groove body to realize the rotational connection, wherein the width of the groove body only needs to be ensured to be equal to the local position of the first linear motion end 215 inserted therein, in this preferred embodiment, in order to increase the structural strength of the transmission link 43, the transmission link may be disposed in a V shape, and this structural form does not increase the distance between the rotational connection end 214 and the first linear motion end 215.
Preferably, as for the above embodiment, one end of the stopping rod body 22 is rotatably connected to the middle of the force-receiving section 212, the guide rod 22a is disposed in the middle of the stopping rod body 22, when the force-receiving section 212 drives the stopping rod body 22 to move, the guide rod 22a adaptively moves along the guide groove, and the other end of the stopping rod body 22 stops the second power device 4.
Referring to fig. 2, in the preferred embodiment, before the force is applied, the force-applied section 212 is located on the left side of the figure together with the stop rod 22, and when the force-applied section 212 is rotated to the right side of the figure by an external force, the operator drives the stop rod 22 to move to the right side, the guide groove is used for keeping the height of the guide rod 22a at a set position, and when the stop rod 22 moves to the right side to a proper position, the blocking of the second power device 4 is naturally released, so that the operability is obtained.
Wherein, the connecting side of the stopping rod body 22 and the force-bearing section 212 comprises two parts which are symmetrically arranged about the force-bearing section 212, thereby increasing the stability of the connection.
In order to reduce the control difficulty in operation, as shown in fig. 6-8, the bipolar tissue closer is further provided with a locking device 5, the locking device 5 comprising: the middle part of the lock rod 51 is fixedly connected with the power supply component 21, and two ends of the lock rod are freely arranged; the locking block 52 moves along a straight line and comprises a left group of extrusion guide surfaces 52a, a right group of concave locking grooves 52b and a connecting surface 52c which are connected in sequence; the two ends of the lock rod 51 extrude the extrusion guide surface 52a under the force application of the operator, and enter the concave locking groove 52b from top to bottom along the extrusion guide surface 52a, when the operator applies force for the second time, the lock rod 51 leaves the concave locking groove 52b from top to bottom and returns through the lower part of the connecting surface 52 c; and the pressing spring 53 is arranged at the bottom of the locking block 52 and is used for providing a resetting force for the locking block 52.
Through the locking device 5, after the power supply assembly 21 moves to the locking direction to the proper position, the self-positioning can be realized through the locking action of the locking rod 51 in the concave locking groove 52b, the gripping force of an operator is released, the operation comfort is ensured, and the operation safety is improved. Wherein the pressing spring 53 always provides a counter force against the pressing force from the lock lever 51, thereby ensuring the balance of the locked position when no external force is applied.
As a preferable example of the above embodiment, the second power unit 4 includes a stopper 41, a slide 42, a link 43, an urging lever 44, a return spring 45, and a moving block 46; the reset spring 45 is sleeved on the periphery of the forceps body push-pull rod body 6, one end of the reset spring is blocked by the stop block 41, and the stop block 41 is fixedly arranged; the slideway 42 is fixedly arranged, one end of the connecting rod 43 is linearly guided, the guiding direction is parallel to the length direction of the tweezer body push-pull rod body 6, the other end of the connecting rod 43 is rotatably connected with one end of the force application rod 44, the middle part of the force application rod 44 is rotatably arranged through a fixed axis, and the other end of the force application rod is used for applying force to an operator; the moving block 46 is rotatably connected with the second linear motion end of the connecting rod 43 and performs linear motion synchronously with the second linear motion end, and the moving block 46 is sleeved on the periphery of the tweezer body push-pull rod body 6 and is attached to the other end of the return spring 45; the stressed ends of the slideway 42 and the force applying rod 44 are respectively located at two sides of the forceps body push-pull rod body 6, and the moving block 46 drives the cutting blade 3 to perform linear motion.
Referring to fig. 1 and 9, in the working process, after the stop lever body 22 releases the blocking of the force application rod 44, an operator applies force to the end of the force application rod 44 located on one side of the forceps body push-pull rod body 6 to make the force application rod 44 rotate around the fixed rotating shaft, so as to pull the second linear motion end of the connecting rod 43 located on the other side of the forceps body push-pull rod body 6 to move, the moving block 46 performs linear motion under the pulling of the connecting rod 43 to extrude the return spring 45, and at the same time, the cutting blade 3 is driven to perform linear motion to perform cutting, and after the execution is completed, after the application of force of the operator is released, the return spring 45 drives the second power device 4 to return through the moving block 46.
In the structure form, the length of the force application rod 44 is prolonged in a limited space, the force application size is reduced through a lever principle, the whole second power device 4 fully utilizes the space distribution form of the closer, and simultaneously the length of the connecting rod 43 is extended as much as possible, so that the fluency of power transmission can be ensured, the risk of blocking is reduced, and meanwhile, the operation noise is small; the connection side of the force application rod 44 and the link 43 comprises two parts symmetrically arranged about the link 43, which also increases the stability of the connection.
In order to solve the above technical problems, as shown in fig. 10 and 11, one of the forceps bodies 1 is a split structure and includes a fixed section 11 and a rotating section 12, the other forceps body 1 is an integral structure and rotates relative to the fixed section 11, the fixed section 11 and the rotating section 12 are rotatably connected with a rotating shaft 13 perpendicular to the length direction of the forceps body push-pull rod body 6 through an axis, wherein when the rotating section 12 rotates to an extreme position relative to the fixed section 11, the forceps body 1 of the split structure forms a flat clamping surface, wherein the clamping surface can be formed by the fixed section 11 and the rotating section 12 together, and can also be provided by the rotating section 12 independently.
In the preferred scheme, at least one forceps body 1 is designed in a split mode, the length of any part is shortened, the deformation probability is reduced, the structural rigidity is enhanced, and the clamping force of the tail ends of the two forceps bodies 1 can be effectively enhanced through the rotating arrangement mode. In order to further enhance the clamping effect, when the rotating section 12 rotates to the limit position, the elastic catch 14 generates a force on the rotating section 12, so that the rotating section 12 tends to rotate away from the limit position, and the elastic clamping force at the end can be further enhanced by the elastic action of the elastic catch 14.
The thickness and the form of tissues clamped by the existing closer in the using process are different, and in the working process, the on-off electricity between the two forceps tips is not linked with the opening and closing of the two forceps tips, so that in the working process, a short circuit phenomenon is easily caused when the two forceps tips do not clamp the tissues or the range of the clamped tissues is too small, and in view of further consideration of operation safety, as shown in fig. 12 and 13, an insulating bulge 15 is arranged on the clamping surface of at least one forceps body 1, of course, the height of the insulating bulge 15 needs to be strictly controlled, on the premise that the short circuit condition is not caused after the two forceps bodies 1 are attached, the height of the insulating bulge 15 is reduced as far as possible, so that the effectiveness of clamping the tissues is ensured finally, wherein the insulating bulge 15 is preferably made of a ceramic material.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A bipolar tissue closure, comprising:
the two forceps bodies (1) rotate relatively to realize opening and closing, and act on the clamped tissue through conducted current;
the first power device (2) provides power for the relative rotation of the two forceps bodies (1);
the cutting blade (3) is arranged between the two forceps bodies (1) and is used for cutting the clamped tissue;
a second power device (4) for providing power for the linear movement of the cutting blade (3);
the first power unit (2) includes:
the power supply assembly (21) drives the forceps body push-pull rod body (6) connected with at least one forceps body (1) to linearly move under the force application of an operator, so that the two forceps bodies (1) are opened and closed;
a stopping rod body (22) which stops the second power device (4) and limits the operation of the second power device when the operator does not operate the second power device, and releases the stop of the second power device (4) after the operator operates the power supply component (21) in place;
the power supply assembly (21) comprises:
the holding connecting rod comprises a first rotating shaft body (211), a stress section (212) and a connecting section (213), wherein the stress section (212) and the connecting section (213) are respectively arranged at two sides of the first rotating shaft body (211), an included angle between the stress section and the connecting section is smaller than 90 degrees, and the first rotating shaft body (211) rotates around a fixed axis;
the force transmission rod body comprises a rotating connecting end (214) and a first linear moving end (215), the rotating connecting end (214) is rotatably connected with the tail end of the connecting section (213), and the first linear moving end (215) moves along the linear moving direction of the forceps body push-pull rod body (6) under the limitation of the linear guide groove;
the first linear moving end (215) is rotatably connected with the end part of the forceps body push-pull rod body (6).
2. The bipolar tissue closer according to claim 1, wherein one end of the stopping rod body (22) is rotatably connected with the middle position of the force-bearing section (212), a guide rod (22 a) is arranged in the middle of the stopping rod body (22), the guide rod (22 a) adaptively moves along a guide groove in the process that the force-bearing section (212) drives the stopping rod body (22) to move, and the other end of the stopping rod body (22) blocks the second power device (4).
3. The bipolar tissue closure according to claim 2, wherein the connecting side of the stop rod (22) to the force-bearing segment (212) comprises two parts arranged symmetrically with respect to the force-bearing segment (212).
4. The bipolar tissue closure according to claim 1, further provided with a locking device (5), the locking device (5) comprising:
the middle part of the lock rod (51) is fixedly connected with the power supply component (21), and two ends of the lock rod are freely arranged;
the locking block (52) moves along a straight line and comprises a left group of extrusion guide surfaces (52 a), a right group of extrusion guide surfaces (52 b) and a concave locking groove (52 b) which are connected in sequence and a connecting surface (52 c); the two ends of the lock rod (51) extrude the extrusion guide surface (52 a) under the force application of an operator, and enter the concave locking groove (52 b) from top to bottom along the extrusion guide surface (52 a), and when the operator applies force for the second time, the lock rod (51) leaves the concave locking groove (52 b) from top to bottom and returns through the lower part of the connecting surface (52 c);
and the extrusion spring (53) is arranged at the bottom of the locking block (52) and is used for providing a resetting force for the locking block (52).
5. The bipolar tissue closure according to claim 1 wherein the second motive means (4) comprises a stop (41), a slide (42), a link (43), an apply lever (44), a return spring (45) and a moving mass (46);
the reset spring (45) is sleeved on the periphery of the forceps body push-pull rod body (6), one end of the reset spring is blocked by the stop block (41), and the stop block (41) is fixedly arranged;
the slide way (42) is fixedly arranged, one end of the connecting rod (43) is linearly guided, the guiding direction is parallel to the length direction of the forceps body push-pull rod body (6), the other end of the connecting rod (43) is rotatably connected with one end of the force application rod (44), the middle part of the force application rod (44) is rotatably arranged through a fixed axis, and the other end of the force application rod is used for applying force to an operator; the moving block (46) is rotatably connected with a second linear movement end of the connecting rod (43) and synchronously linearly moves with the second linear movement end, and the moving block (46) is sleeved on the periphery of the tweezer body push-pull rod body (6) and is attached to the other end of the return spring (45);
the force bearing ends of the slide way (42) and the force application rod (44) are respectively positioned at two sides of the forceps body push-pull rod body (6), and the moving block (46) drives the cutting blade (3) to do linear motion.
6. The bipolar tissue closure according to claim 5, wherein the side of the force application rod (44) connected to the link (43) comprises two parts arranged symmetrically about the link (43).
7. The bipolar tissue closer according to any one of claims 1 to 6, wherein one of the forceps bodies (1) is of a split structure and comprises a fixed section (11) and a rotating section (12), and the other forceps body (1) is of an integral structure; the rotating section (12) and the other forceps body (1) rotate relative to the fixing section (11), the fixing section (11) and the rotating section (12) are rotationally connected with a rotating shaft (13) perpendicular to the length direction of the forceps body push-pull rod body (6) through an axis, when the rotating section (12) rotates to the limit position relative to the fixing section (11), the forceps body (1) of the split structure forms a flat clamping surface, and at the moment, the rotating section (12) and the fixing section (11) are collinear.
8. The bipolar tissue closure according to claim 7, wherein an elastic flap (14) is further disposed on the fixed segment (11), and when the rotating segment (12) rotates to the limit position, the elastic flap (14) exerts a force on the rotating segment (12) to cause the rotating segment (12) to tend to rotate away from the limit position.
9. The bipolar tissue closure according to any one of claims 1 to 6, wherein at least one of the clamping surfaces of the forceps body (1) is provided with an insulating protrusion (15).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011471135.8A CN112587228B (en) | 2020-12-14 | 2020-12-14 | Bipolar tissue closer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011471135.8A CN112587228B (en) | 2020-12-14 | 2020-12-14 | Bipolar tissue closer |
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| CN112587228A CN112587228A (en) | 2021-04-02 |
| CN112587228B true CN112587228B (en) | 2021-07-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114711951B (en) * | 2022-04-25 | 2022-09-30 | 南京首量医疗科技有限公司 | Endoscope type high-frequency electrosurgical closer |
| CN115120336B (en) * | 2022-07-05 | 2023-01-31 | 南京首量医疗科技有限公司 | Disposable open type high-frequency electrosurgical closer |
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| CN101005810A (en) * | 2004-08-24 | 2007-07-25 | 爱尔伯电子医疗设备公司 | Surgical instrument |
| CN101528146A (en) * | 2006-07-13 | 2009-09-09 | 博维医药公司 | Surgical sealing and cutting apparatus |
| CN102178559A (en) * | 2011-05-24 | 2011-09-14 | 胡伟九 | High-frequency bipolar closed cutting forceps |
| CN205433882U (en) * | 2015-12-29 | 2016-08-10 | 杭州桐庐时空候医疗器械有限公司 | Electricity of electrified sword congeals riving knife |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8968283B2 (en) * | 2011-05-19 | 2015-03-03 | Covidien Lp | Ultrasound device for precise tissue sealing and blade-less cutting |
| US11065049B2 (en) * | 2017-11-10 | 2021-07-20 | Gyrus Acmi, Inc. | Electrosurgical device with asymmetric seal compression |
| US10842552B2 (en) * | 2017-11-17 | 2020-11-24 | Gyrus Acmi, Inc. | Vessel sealing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101005810A (en) * | 2004-08-24 | 2007-07-25 | 爱尔伯电子医疗设备公司 | Surgical instrument |
| CN101528146A (en) * | 2006-07-13 | 2009-09-09 | 博维医药公司 | Surgical sealing and cutting apparatus |
| CN102178559A (en) * | 2011-05-24 | 2011-09-14 | 胡伟九 | High-frequency bipolar closed cutting forceps |
| CN205433882U (en) * | 2015-12-29 | 2016-08-10 | 杭州桐庐时空候医疗器械有限公司 | Electricity of electrified sword congeals riving knife |
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