CN117257440B - Spring scissors for neurosurgery - Google Patents
Spring scissors for neurosurgery Download PDFInfo
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- CN117257440B CN117257440B CN202311217451.6A CN202311217451A CN117257440B CN 117257440 B CN117257440 B CN 117257440B CN 202311217451 A CN202311217451 A CN 202311217451A CN 117257440 B CN117257440 B CN 117257440B
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Classifications
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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
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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
- A61B2018/00434—Neural system
-
- 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
- A61B2018/00589—Coagulation
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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
- A61B2018/146—Scissors
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- Health & Medical Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Otolaryngology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a spring shear for neurosurgery, which belongs to the field of medical appliances and comprises the following components: the shearing assembly for shearing the soft tissues comprises a reset shear and a shearing traction piece which are connected, the reset shear is closed by pulling the shearing traction piece, and the reset shear is reset and opened after the shearing traction piece is loosened; the three reset cavities are hinged to the second reset cavity, a pitching traction piece is arranged at the hinged position of the first reset cavity, the reset scissors are hinged to the first reset cavity, the pitching traction piece is pulled to enable the first reset cavity to rotate, and the first reset cavity returns to the initial pose after the pitching traction piece is loosened; the third reset cavity and the second reset cavity are coaxially connected, a rotary traction piece is arranged at the connection part, the rotary traction piece is pulled to enable the second reset cavity and the third reset cavity to coaxially and relatively rotate, and the second reset cavity returns to the initial pose after the pitching traction piece is loosened; the holding component is provided with the control component, and a doctor can flexibly change the reset scissors into various angles by holding the holding component and adjusting the control component.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a spring shear for neurosurgery.
Background
Neurosurgery is a branch in surgery, and is based on surgery as a main treatment means, a unique neurosurgery research method is applied to research human nervous systems, such as brain, spinal cord and peripheral nervous systems, and related auxiliary organs, such as injury, inflammation, tumor, deformity and certain genetic metabolic disorders or dysfunction diseases of structures of skull, scalp, cerebral vascular meninges and the like, such as: etiology and pathogenesis of epilepsy, parkinsonism, neuralgia and the like, and explore a new high-grade, fine and sharp subject of diagnosis, treatment and prevention technology.
In the related operation treatment of neurosurgery, the pia mater positioned in the cranium of the patient is often required to be cut off so as to clearly expose related anatomical structures, the operation space is limited, particularly the operation space under the endoscope is quite limited, the requirement on the operation precision is higher, the flexibility of the spring scissors commonly used by the doctor in the current clinic is quite low and the volume is quite large, the doctor needs to continuously change the pose of the hand relative to the patient to enable the spring scissors to be contacted with the pia mater to be cut off at a proper angle, and the operation difficulty is increased while the efficiency of the doctor is reduced in the operation process; and the existing spring scissors cannot finely adjust the scissors angle of the execution tail end after the approximate position is determined, so that the existing spring scissors cannot adapt to complex and changeable operation environments, slow the operation process and increase the risk of wound. In addition, bleeding and the like may occur during the process of cutting the pia mater, the scissors are required to be switched to the bipolar electrotome for hemostasis, the bleeding amount is increased during the process of repeatedly switching the scissors and the bipolar electrotome, and the operation time is prolonged.
Therefore, a long-rod scissors for operation, which can change the direction of the head end performing the shearing function at multiple angles, is required to be designed, and has the functions of both scissors and bipolar electrotome, and the scissors and the bipolar electrotome can be switched to be used in the use process, so that the intracranial hemorrhage amount and the operation duration in operation can be greatly reduced. In particular to a spring shear for neurosurgery.
Disclosure of Invention
In order to overcome the problems in the background art, the invention adopts the following technical scheme:
A spring clipper for neurosurgery, comprising: the shearing assembly is used for shearing soft tissues and comprises a reset shear and a shearing traction piece, wherein the shearing traction piece is connected with the reset shear, the reset shear is closed by pulling the shearing traction piece, and the reset shear is reset and opened after the shearing traction piece is loosened; the device comprises a first reset cavity and a second reset cavity, wherein the distal end of the first reset cavity is hinged to the proximal end of the second reset cavity in a sagittal plane, a pitching traction piece is arranged at the hinge position, a reset shear is hinged to the proximal end of the first reset cavity, the pitching traction piece is pulled to enable the first reset cavity to rotate in the sagittal plane, and the first reset cavity returns to an initial pose after the pitching traction piece is loosened; and the proximal end of the third reset cavity and the distal end of the second reset cavity are coaxially connected in the coronal plane, a rotary traction piece is arranged at the connection part, the rotary traction piece is pulled to enable the second reset cavity and the third reset cavity to coaxially and relatively rotate, and the second reset cavity returns to the initial pose after the pitching traction piece is loosened.
Further, the third reset cavity is also connected with a holding assembly, the holding assembly comprises a joint rod and a handle, the joint rod is connected between the third reset cavity and the handle, and the shearing traction piece, the pitching traction piece and the rotating traction piece are all arranged through the joint rod and enter the interior of the handle.
Further, the handle is inside to be equipped with control assembly, including shearing control structure, every single move control structure, rotation control structure, shearing control structure with shearing tractive spare links to each other, every single move control structure with every single move tractive spare links to each other, rotation control structure with rotation tractive spare links to each other, and the operator can adjust control assembly control when the handle is grabbed reset cut open and shut reset cut the rotation angle of coronal plane reset cut the rotation angle of sagittal plane.
Further, one end of the shearing pulling piece is connected with the shearing control structure, and the other end of the shearing pulling piece passes through the joint rod to be connected with the reset shear; one end of the pitching traction piece is connected with the pitching control structure, and the other end of the pitching traction piece passes through the joint rod to be connected with the first reset cavity; one end of the rotary traction piece is connected with the rotary control structure, and the other end of the rotary traction piece passes through the joint rod to be connected with the second reset cavity; the doctor only needs to grasp the handle with one hand and adjust different control structures by using different fingers, and can simultaneously or sequentially control the shearing action of the reset scissors, the radial rotation and the circumferential rotation in the coronal plane/the horizontal plane/the sagittal plane, so that the reset scissors can realize universal rotation about the joint rod based on simple operation.
Further, the reset scissors comprise at least two identical rotating blades which are hinged with each other, a first energy storage part is arranged between the rotating blades, each rotating blade is respectively connected with the shearing traction part, when the shearing traction part is pulled, the adjacent rotating blades are relatively closed, and the first energy storage part is pressed for storing energy; when the shearing traction piece stops being stressed, the first energy storage piece releases energy to stretch, so that the adjacent rotary blades are opened relatively.
Further, the articulating rod includes at least two sections of receiving cavities and at least one section of flexible cavity, each section of flexible cavity being disposed between adjacent receiving cavities, the flexible cavities being capable of being adjusted to a variety of degrees of flexion, but the operator adjusting the control assembly such that the force generated when the shearing assembly is displaced from the respective reset cavity is less than the force to change the shape of the flexible cavity.
Further, the first reset cavity, the second reset cavity and the third reset cavity are provided with at least one positioning ring, the circle center of each positioning ring coincides with the central axis of the corresponding reset cavity, the shearing traction piece passes through the positioning ring, so that the part of the shearing traction piece passing through each reset cavity coincides with the central axis of the corresponding reset cavity all the time, based on the setting, when the relative angle change of each reset cavity occurs, the sum of the lengths of the shearing traction piece in each reset cavity is changed to the minimum, and the influence of changing the position and the posture of the reset cavity on the resetting shearing open and close state is reduced to the greatest extent. The shearing traction piece is provided with a bifurcated shearing traction monomer between the locating ring and the rotary blade, or the shearing traction piece comprises at least two bundles of shearing traction monomers, then the two bundles of shearing traction monomers are restrained through the locating ring, in the two conditions, when the reset shear is in an open state, one sides of the shearing traction monomers connected with the rotary blade are far away from each other, and when the shearing traction piece is pulled, the shearing traction monomers are assembled together under the restraint action of the locating ring and enable the rotary blade to be closed, so that the shearing action of the reset shear is realized.
Further, the first reset cavity and the second reset cavity are hinged to the two sides respectively and are provided with second energy storage pieces, the second energy storage pieces are identical to the first energy storage pieces in principle, under the initial position of the first reset cavity and the second reset cavity which are coaxial, the second energy storage pieces are distributed in a circumferential array around the central axis of the first reset cavity, so that the second energy storage pieces can be compressed when the first reset cavity turns to any side relative to the hinge position, and the first reset cavity is always coaxial with the second reset cavity when not subjected to external force.
Further, a traction connection structure is arranged in the first reset cavity and used for connecting the pitching traction pieces, the number of the traction connection structures is two, two ends of the pitching traction pieces bypass the pitching control structure and are connected to the two traction connection structures, and the first reset cavity is controlled to rotate in a sagittal plane through rotating the pitching control structure.
Further, a traction connection structure is arranged in the first reset cavity and used for connecting pitching traction pieces, the number of the traction connection structures is one, one end of each pitching traction piece is connected to the traction connection structure, and the other end of each pitching traction piece penetrates through a plurality of positioning rings and is connected with a pitching control structure.
Further, a third energy storage piece is arranged at the joint of the second reset cavity and the third reset cavity, when the second reset cavity and the third reset cavity relatively rotate, the third energy storage piece is pulled or pressed and starts to store energy, and when the second reset cavity stops being stressed, the third energy storage piece pulls the second reset cavity to restore the initial pose; the third reset cavity is internally provided with a guide channel, one end of the rotary traction piece is connected with the second reset cavity, and the other end of the rotary traction piece penetrates through the guide channel and is connected with the rotary control structure.
Further, the pitching control structure is coaxially hinged with the shearing control structure, the pitching control structure and the shearing control structure can rotate along different set tracks respectively, and the pitching control structure and the shearing control structure do not interfere with each other when moving on the respective rotating tracks, so that a doctor can not bump when adjusting different control structures by using different fingers, and the learning cost required by entering a door is greatly reduced.
Further, still include the electricity congeals the subassembly, the electricity congeals the subassembly and includes electricity congeals the polar plate and opens and stop the switch, electricity congeals the polar plate with it cuts detachable connection to reset, it sets up to open and stop the switch the surface of handle, electricity congeals the polar plate with open and stop the switch electricity and be connected, electricity congeals the polar plate with open and stop the switch and pass through the wire electricity of laying in first reset chamber, second reset chamber, third reset chamber, joint pole. The setting of electric coagulation subassembly can promote by a wide margin the convenient degree of use of spring scissors for neurosurgery, only need manual opening the start-stop switch that sets up on the handle and closed reset scissors after accomplishing the shearing of target tissue, can make the electric coagulation polar plate contact of both sides treat the affected part or the wound of sintering.
Further, the total length of all the traction pieces in the joint rod is longer than the joint rod by a, a is less than or equal to 10mm, so that the traction pieces can keep an elastic margin in the spring scissors, and the closing of the reset scissors or the relative rotation of different reset cavities can be prevented when the joint rod bends.
The invention has the beneficial effects that:
1. The reset scissors can realize universal rotation in a narrow space by respectively axially and radially rotating, can adapt to the complex operation environment in a patient, and can change the angle and the opening and closing of the reset piece by only grabbing the handles with one hand and adjusting the control assembly.
2. The multifunctional electric coagulation surgical instrument has the functions of multi-angle and multi-azimuth shearing and electric coagulation, the shearing function and the electric coagulation function are realized by the same instrument, and a doctor does not need to frequently replace surgical instruments in the operation process, so that the surgical efficiency is improved, and the risk of damaging surrounding tissues during the replacement of the surgical instruments is avoided.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a partial structure of the reset shears according to the present invention after the reset shears are opened;
FIG. 3 is a schematic cross-sectional view of a part of the structure based on FIG. 2;
FIG. 4 is a schematic view of a partial structure of the first reduction chamber of the present invention rotated in the sagittal plane with respect to the second reduction chamber;
FIG. 5 is a schematic cross-sectional view of a part of the structure based on FIG. 4;
FIG. 6 is a schematic view of a partial structure of the second reset chamber of the present invention after circumferential rotation about the third reset chamber;
FIG. 7 is a schematic cross-sectional view of a part of the structure based on FIG. 6;
FIG. 8 is a schematic view of a partial structure of the control assembly in an initial position;
FIG. 9 is a schematic cross-sectional view of a portion of the control assembly after an external force is applied thereto;
FIG. 10 is a schematic view of a partial structure of the present invention after assembly of the electrocoagulation assembly;
FIG. 11 is a schematic view of another partial structure of the present invention after assembly of the electrocoagulation assembly;
In the figure, 1, a shearing assembly; 11. resetting the scissors; 111. a rotating blade; 112. a first energy storage member; 12. shearing the traction piece; 2. a first reset chamber; 21. a pitch traction member; 22. a positioning ring; 23. a second energy storage member; 24. pulling the connecting structure; 3. a second reset chamber; 31. a third energy storage member; 32. a fan-shaped groove; 4. a third reset chamber; 41. rotating the pulling member; 5. a grip assembly; 51. a joint lever; 511. a receiving chamber; 512. a flexible chamber; 52. a handle; 6. a control assembly; 61. a shear control structure; 611. a first trigger reset; 62. a pitch control structure; 63. a rotation control structure; 631. a second trigger reset; 7. an electrocoagulation polar plate; 71. and (5) starting and stopping the switch.
Detailed Description
The following detailed description of the embodiments of the present invention will be made more apparent to those skilled in the art from the following detailed description, in which the invention is embodied in several, but not all, embodiments of the invention. The invention may be embodied or applied in other specific forms and features of the following examples and examples may be combined with each other without conflict, all other examples being contemplated by those of ordinary skill in the art without undue burden from the present disclosure, based on the examples of the invention.
A pair of neurosurgical spring shears, as shown in fig. 1-9, defining a proximal end for the end of the neurosurgical spring shears and a distal end for the end distal from the proximal end, as a whole, of each mechanism and combinations thereof, during a surgical procedure, comprising: the shearing assembly 1 for shearing soft tissues comprises a reset shear 11 and a shearing traction piece 12, wherein the shearing traction piece 12 is connected with the reset shear 11, the reset shear 11 is closed by pulling the shearing traction piece 12, and the reset shear 11 is reset and opened after the shearing traction piece 12 is loosened; the first reset cavity 2 and the second reset cavity 3 are hinged at the far end of the first reset cavity 2 in the sagittal plane, a pitching traction piece 21 is arranged at the hinge position of the far end of the second reset cavity 3, the reset scissors 11 are hinged at the near end of the first reset cavity 2, the pitching traction piece 21 is pulled to enable the first reset cavity 2 to rotate in the sagittal plane, and the first reset cavity 2 returns to the initial pose after the pitching traction piece 21 is loosened; the third reset cavity 4, the proximal end of the third reset cavity 4 and the distal end of the second reset cavity 3 are coaxially connected in the coronal plane, a rotary traction piece 41 is arranged at the connection part, the rotary traction piece 41 is pulled to enable the second reset cavity 3 and the third reset cavity 4 to coaxially and relatively rotate, and the second reset cavity 3 returns to the initial pose after the pitching traction piece 21 is loosened.
Defining that when in operation, one end of each structure of the spring scissors and the structure forming the spring scissors is near to a patient and the other end of each structure is far away from the near end, before operation, the gesture of the joint rod 51 is adjusted firstly so as to reduce the subsequent operation difficulty of doctors, in the use process, the near end of the spring scissors enters an operation area, the gesture of the near end of the spring scissors is adjusted through adjusting the pitching control structure 62 and the rotating control structure 63, a reset piece is enabled to approach to a tissue to be sheared in a more proper gesture, after the gesture adjustment of the reset scissors 11 is completed, the reset scissors 11 is controlled to be closed through moving the shearing control structure 61, and the target tissue is sheared. After shearing is finished, the integral posture of the proximal end of the spring shear is continuously adjusted in the process of withdrawing the spring shear from the patient, so that the proximal end of the spring shear is consistent with a withdrawing path as much as possible, and the risk of trauma to tissues around the patient in the withdrawing process is reduced.
1-9, The third reset chamber 4 is further connected with a holding assembly 5, the holding assembly 5 comprises an articulated rod 51 and a handle 52, the articulated rod 51 is integrally connected with the distal end of the third reset chamber 4, the articulated rod 51 is connected between the third reset chamber 4 and the handle 52, and the shearing traction piece 12, the pitching traction piece 21 and the rotation traction piece 41 are all arranged through the articulated rod 51 and enter the interior of the handle 52; the handle 52 is internally provided with the control component 6, and comprises a shearing control structure 61, a pitching control structure 62 and a rotating control structure 63, wherein the shearing control structure 61 is connected with the shearing pulling piece 12, the pitching control structure 62 is connected with the pitching pulling piece 21, the rotating control structure 63 is connected with the rotating pulling piece 41, and an operator can adjust the control component 6 to control the opening and closing of the reset scissors 11, the rotating angle of the reset scissors 11 on the coronal plane and the rotating angle of the reset scissors 11 on the sagittal plane when grasping the handle 52. Further, one end of the shear pulling member 12 is connected to the shear control structure 61, and the other end of the shear pulling member 12 is connected to the reset shear 11 through the joint lever 51; one end of the pitching pulling member 21 is connected with the pitching control structure 62, and the other end of the pitching pulling member 21 passes through the joint rod 51 to be connected with the first reset cavity 2; one end of the rotary pulling member 41 is connected with the rotary control structure 63, and the other end of the rotary pulling member 41 passes through the joint rod 51 to be connected with the second reset cavity 3; the doctor can control the shearing action of the restoring shears 11, the radial rotation and the circumferential rotation in the coronal/horizontal/sagittal planes simultaneously or sequentially by holding the handle 52 with one hand and adjusting different control structures using different fingers, so that the restoring shears 11 can realize the universal rotation about the joint rod 51 based on a simple operation. Specifically, the shearing control structure 61 and the rotation control structure 63 may be a coaxial shearing trigger and a rotation trigger, the operator triggers the closing of the reset shear 11 and the rotation of the second reset cavity 3 about the third reset cavity 4 by pulling the trigger, a first trigger reset member 611 is disposed between the shearing trigger and the inner wall of the handle 52, a second trigger reset member 631 is disposed between the rotation trigger and the inner wall of the handle 52, the first trigger reset member 611 and the second trigger reset member 631 are spring or spring, and the spring or spring may be made of metal or plastic.
1-9, The overall length of all the pulling members within the articulating rod 51 is a longer than the articulating rod 51 by a.ltoreq.10 mm, which allows the pulling members to maintain a margin of elasticity within the spring shears, preventing the articulating rod 51 from flexing which could trigger the closure of the reset shears 11 or the relative rotation of the different reset chambers.
1-9, The reset shear 11 comprises at least two identical rotating blades 111 hinged with each other, a first energy storage member 112 is arranged between the rotating blades 111, each rotating blade 111 is respectively connected with the shearing pulling member 12, when the shearing pulling member 12 is pulled, the adjacent rotating blades 111 are relatively closed, and the first energy storage member 112 is pressed to store energy; when the shear pull 12 ceases to be stressed, the first energy storage member 112 releases energy to expand such that the adjacent blades 111 are relatively open.
1-9, The articulating rod 51 includes at least two segments of receiving cavities 511 and at least one segment of flexible cavity 512, each segment of flexible cavity 512 being disposed between adjacent receiving cavities 511, the flexible cavities 512 being capable of being adjusted to a variety of bending angles such as 30, 45, 60, etc., but the operator adjusts the control assembly 6 such that the force generated when the shear assembly 1 is displaced from the respective reset cavity is less than the force that would change the shape of the flexible cavity 512.
1-9, At least one positioning ring 22 is arranged in each of the first reset cavity 2, the second reset cavity 3 and the third reset cavity 4, the center of each positioning ring 22 coincides with the central axis of the corresponding reset cavity, the shearing pulling member 12 passes through the positioning ring 22, so that the part of the shearing pulling member 12 passing through each reset cavity coincides with the central axis of the corresponding reset cavity all the time, based on the arrangement, when the relative angle change occurs in each reset cavity, the sum of the lengths of the shearing pulling member 12 in each reset cavity is changed to the minimum, and the influence of changing the position and the posture of the reset cavity on the opening and closing state of the reset scissors 11 is further reduced to the maximum extent. The shearing pulling member 12 is provided with a bifurcated shearing pulling unit between the positioning ring 22 and the rotating blade 111, or the shearing pulling member 12 comprises at least two bundles of shearing pulling units, and then the two bundles of shearing pulling units are restrained by the positioning ring 22, in the above two cases, when the reset scissors 11 are in an opened state, one sides of the shearing pulling units connected with the rotating blade 111 are far away from each other, and when the shearing pulling member 12 is pulled, the shearing pulling units are assembled together under the restraint action of the positioning ring 22 and the rotating blade 111 is closed, so that the shearing action of the reset scissors 11 is realized.
More preferably, the number of the shear pull monomers is at least two, so that a bifurcation can be formed at one end of the shear pull member 12, when the shear pull member 12 is provided with a bifurcated shear pull monomer between the positioning ring 22 and the rotary blade 111: the shearing and pulling unit is specifically an inelastic line body with two ends respectively connected to the shearing and pulling piece 12, the manufacturing material of the shearing and pulling piece 12 can be an organic polymer material or a fabric, and the manufacturing material of the shearing and pulling piece 12 can be the same as or different from that of the shearing and pulling unit under the condition, so that the whole shearing and pulling piece 12 can be ensured to have good flexibility, and the shearing and pulling piece 12 can still be smoothly driven after the reset scissors 11 make various angles of torsion about the handle 52; where the shear pull 12 comprises at least two bundles of shear pull monomers, the two bundles of shear pull monomers are identical to the specific structure and fabrication materials in the first instance, except that: in this case, at least two bundles of completely independent wires are connected with the shearing trigger and the rotary blade 111, so that the stability of connection is improved, and even if one bundle of inelastic wires is broken, the linkage between the shearing trigger and the rotary blade 111 is not affected, so that the device has longer service life.
In a more preferred embodiment, as shown in fig. 1-9, the first reset cavity 2 and the second reset cavity 3 are hinged at two sides and are respectively provided with a second energy storage piece 23, the second energy storage piece 23 and the first energy storage piece 112 have the same principle, and in an initial position where the first reset cavity 2 and the second reset cavity 3 are coaxial, the second energy storage pieces 23 are distributed in a circumferential array around the central axis of the first reset cavity 2, so that the first reset cavity 2 compresses the second storage piece when turning to any side about the hinge position, and the first reset cavity 2 is always coaxial with the second reset cavity 3 when not subjected to external force.
Further, the first reset cavity 2 is internally provided with a traction connection structure 24 for connecting the pitching traction pieces 21, the number of the traction connection structures 24 is two, two ends of the pitching traction pieces 21 bypass the pitching control structure 62 and are connected to the two traction connection structures 24, and the first reset cavity 2 is controlled to rotate in the sagittal plane through rotating the pitching control structure 62. Specifically, the pitch control structure 62 is a wire control pulley, the wire control pulley is axially connected in the handle 52, a part of the contour of the wire control pulley penetrates out of the housing of the handle 52, the pitch traction member 21 is specifically an inelastic wire body with a rough surface, the manufacturing material of the pitch traction member can be fibrilia fabric or polyester fiber, the inelastic wire body is wound on the wire control pulley, a user can press the thumb to push the part of the wire control pulley penetrating out of the handle 52, the movement of the traction connection structure 24 is regulated and controlled through the forward pushing or backward pulling of the wire control pulley, further the pitch movement of the first reset cavity 2 is controlled, a fan-shaped groove 32 is formed between the first reset cavity 2 and the second reset cavity 3, the fan-shaped groove is used for providing a placement area and an opening and closing stroke for the second energy storage member 23, and the first energy storage member 112 and the second energy storage member 23 are torsion springs.
In a more preferred embodiment, as shown in fig. 1-9, a pulling connection structure 24 is disposed in the first reset cavity 2 and is used for connecting the pitching pulling member 21, the number of pulling connection structures 24 is one, one end of the pitching pulling member 21 is connected to the pulling connection structure 24, and the other end of the pitching pulling member 21 passes through a plurality of positioning rings 22 and is connected to the pitching control structure 62.
1-9, A third energy storage element 31 is arranged at the joint of the second reset cavity 3 and the third reset cavity 4, the third energy storage element 31 is a compression spring or a tension spring or a rubber band, when the second reset cavity 3 and the third reset cavity 4 rotate relatively, the third energy storage element 31 is pulled or pressed and starts to store energy, and when the second reset cavity 3 stops being stressed, the third energy storage element 31 pulls the second reset cavity 3 to restore the initial pose; the third reset cavity 4 is internally provided with a guide channel, one end of the rotary pulling member 41 is connected with the second reset cavity 3, and the other end of the rotary pulling member 41 passes through the guide channel and is connected with the rotary control structure 63.
In a more preferred embodiment, as shown in fig. 1-9, the pitch control structure 62 is coaxially hinged with the shear control structure 61, the pitch control structure 62 and the shear control structure 61 can rotate on the sagittal plane and the coronal plane respectively, and the pitch control structure 62 and the shear control structure 61 do not interfere with each other when moving on respective predetermined tracks, so that a doctor can not crash when adjusting different control structures by using different fingers, and the learning cost required for entering a door is greatly reduced.
1-11, The electric coagulation assembly further comprises an electric coagulation polar plate 7 and a start-stop switch 71, wherein the electric coagulation polar plate is detachably connected with the reset scissors 11, the start-stop switch 71 is arranged on the surface of the handle 52, the electric coagulation polar plate 7 is electrically connected with the start-stop switch 71, and the electric coagulation polar plate 7 is electrically connected with the start-stop switch 71 through wires laid in the first reset cavity 2, the second reset cavity 3, the third reset cavity 4 and the joint rod 51. The setting of the electrocoagulation assembly can greatly improve the using convenience of the spring scissors for neurosurgery, and after the shearing of target tissues is completed, the electrocoagulation polar plates 7 on two sides can be contacted with affected parts or wounds to be sintered only by manually opening the start-stop switch 71 arranged on the handle 52 and closing the reset scissors 11.
Claims (7)
1. A pair of neurosurgical spring shears, comprising:
The shearing assembly is used for shearing soft tissues and comprises a reset shear and a shearing traction piece, wherein the shearing traction piece is connected with the reset shear, the shearing traction piece is tightened to enable the reset shear to be closed, and the shearing traction piece is loosened to enable the reset shear to be reset and opened;
The first reset cavity is hinged to the second reset cavity in a sagittal plane, a pitching traction piece is arranged at the hinged position of the first reset cavity, the reset scissors are hinged to the first reset cavity, the pitching traction piece is tightened to enable the first reset cavity to rotate in the sagittal plane, and the first reset cavity returns to the initial pose after the pitching traction piece is loosened;
The third reset cavity and the second reset cavity are coaxially connected in the coronal plane, a rotary traction piece is arranged at the connection part, the rotary traction piece is tightened to enable the second reset cavity and the third reset cavity to coaxially and relatively rotate, and the second reset cavity returns to the initial pose after the pitching traction piece is loosened;
The reset scissors comprise at least two identical rotating blades which are hinged with each other, a first energy storage part is arranged between the rotating blades, each rotating blade is respectively connected with the shearing traction part, when the shearing traction part is pulled, the adjacent rotating blades are relatively closed, and the first energy storage part is pressed for energy storage; when the shearing traction piece stops being stressed, the first energy storage piece releases energy to stretch so that the adjacent rotary blades are relatively opened;
The first reset cavity and the second reset cavity are hinged at two sides and are respectively provided with a second energy storage part, the second energy storage part and the first energy storage part have the same principle, and under the initial position that the first reset cavity and the second reset cavity are coaxial, the second energy storage parts are distributed in a circumferential array around the central axis of the first reset cavity, so that the second energy storage parts are compressed when the first reset cavity turns to any side about the hinge position, and the first reset cavity is always coaxial with the second reset cavity when the first reset cavity is not subjected to external force;
the first reset cavity is internally provided with a traction connection structure for connecting pitching traction pieces, the number of the traction connection structures is two, two ends of the pitching traction pieces bypass the pitching control structure and are connected to the two traction connection structures, and the first reset cavity is controlled to rotate in a sagittal plane through rotating the pitching control structure.
2. The neurosurgical spring shears according to claim 1, wherein the third reduction chamber further has a gripping assembly connected thereto, the gripping assembly including a rod and a handle, the rod being connected between the third reduction chamber and the handle, the shear pull, pitch pull, and rotation pull all passing through the rod and into the handle; the handle is inside to be equipped with control assembly, including shearing control structure, every single move control structure, rotation control structure, shearing control structure with shear and draw the piece to link to each other, every single move control structure with every single move draw the piece to link to each other, rotation control structure with rotation draws the piece to link to each other, and the operator can adjust control assembly control when grasping the handle reset cut open and shut reset cut the rotation angle at the coronal plane reset cut the rotation angle at the sagittal plane.
3. A neurosurgical spring clip according to claim 2 wherein the articulating rod comprises at least two sections of receiving cavities and at least one section of flexible cavity, each section of flexible cavity being disposed between adjacent receiving cavities, the flexible cavities being adjustable to a plurality of degrees of flexion, but the operator adjusting the control assembly such that the force generated by displacement of the cutting assembly from the respective return cavity is less than the force to change the shape of the flexible cavity.
4. The pair of neurosurgical spring shears according to claim 1, wherein the first, second and third reset chambers are each provided with at least one positioning ring, the center of each positioning ring coincides with the central axis of the corresponding reset chamber, and the shearing pulling member passes through the positioning rings so that the portion of the shearing pulling member passing through each reset chamber always coincides with the central axis of the corresponding reset chamber.
5. The pair of neurosurgical spring shears according to claim 4, wherein a pulling connection structure is provided in the first restoring cavity, and is used for connecting the pitching pulling members, the number of the pulling connection structures is one, one end of each pitching pulling member is connected to the pulling connection structure, and the other end of each pitching pulling member passes through the plurality of positioning rings and is connected to the pitching control structure.
6. The pair of neurosurgical spring shears according to claim 2, wherein the second and third restoring cavities are provided with a third energy storage member at the junction, the third energy storage member being pulled or pressed and starting to store energy when the second and third restoring cavities are rotated relative to each other, and the third energy storage member pulling the second restoring cavity to restore the original position when the second restoring cavity stops being stressed; the third reset cavity is internally provided with a guide channel, one end of the rotary traction piece is connected with the second reset cavity, and the other end of the rotary traction piece penetrates through the guide channel and is connected with the rotary control structure.
7. A neurosurgical spring clip according to claim 2, wherein the pitch control structure is co-axially articulated with the shear control structure, the pitch control structure and the shear control structure being rotatable along different predetermined tracks respectively, the pitch control structure and the shear control structure not interfering with each other when moved on respective rotational tracks.
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| CN202311217451.6A CN117257440B (en) | 2023-09-20 | 2023-09-20 | Spring scissors for neurosurgery |
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| CN202311217451.6A CN117257440B (en) | 2023-09-20 | 2023-09-20 | Spring scissors for neurosurgery |
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| CN117257440A (en) | 2023-12-22 |
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