CN107049477B - Positioning guiding surgical electric coagulation scissors - Google Patents
Positioning guiding surgical electric coagulation scissors Download PDFInfo
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- CN107049477B CN107049477B CN201710291800.7A CN201710291800A CN107049477B CN 107049477 B CN107049477 B CN 107049477B CN 201710291800 A CN201710291800 A CN 201710291800A CN 107049477 B CN107049477 B CN 107049477B
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- guide wheel
- wire rope
- steel wire
- wheel set
- scissors
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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
- A61B18/1445—Probes having pivoting end effectors, e.g. forceps at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
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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
- A61B2018/00595—Cauterization
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The front end scissors mechanism comprises a pair of scissors bodies, a middle support, a control mechanism and a control mechanism, wherein the front end scissors mechanism is connected by a carbon fiber tube, the top of the middle support is hinged with the pair of scissors bodies, the bottom of the middle support is hinged with a wire cylinder, the control mechanism controls the opening, closing and equidirectional swinging of the pair of scissors bodies through a steel wire rope, and the control mechanism controls the swinging of the middle support through the steel wire rope; the middle support is conical, and the side wall is provided with a wiring groove. The pair of scissors bodies are connected with the electrodes through the electric coagulation wires to form the monopolar electric coagulation scissors, the electric coagulation wires are fixedly connected to the bottom of the wire cylinder, the electric coagulation wires do not move along with the pair of scissors bodies, the electric coagulation wires are less in abrasion, the service life is long, and the service life of the micro-instrument is integrally prolonged.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to monopolar electrocoagulation scissors for minimally invasive surgery.
Background
Monopolar electrocoagulation, i.e., a relatively large area of sheet metal in contact with the patient's buttocks as one of the electrodes, called the patient electrode or the inactive electrode, and the other electrode connected to the hemostatic instrument acts as an electrocoagulation.
Bipolar electrocoagulation differs from monopolar electrocoagulation in that the inactive electrode that contacts the buttocks is eliminated and the two electrodes are attached to the two blades of a pair of forceps, respectively, with insulation between the two blades of the forceps. In use, current is passed only through the tissue between the tips of the forceps.
The patent specification of application number 02216805.2 and issue number CN2549922Y discloses a bipolar electrocoagulation microscopic shear, comprising a gun-shaped microscopic shear, a groove is arranged at the lower side of a fixed handle in the gun-shaped microscopic shear, a wire coated with an insulating jacket is arranged in the groove, one end of the wire coated with the insulating jacket is arranged at the fixed blade end of a fixed rod, the head of the wire is provided with a bare part, the wire is insulated from the fixed rod and the fixed blade in the gun-shaped microscopic shear, the other end of the wire is connected to an electrode joint in an electrode connecting seat in the prior art, the electrode connecting seat is fixed on the fixed handle through an electrical insulator in the prior art, and an electrode plug is additionally arranged in the electrode connecting seat and connected with the fixed handle. The invention uses the cutting edge of the fixed blade of the gun-shaped microscopic scissors as one electrode and adds one wire as the other electrode to form the bipolar electric coagulation microscopic scissors, combines the functions of the bipolar electric coagulation and the microscopic scissors into a whole, can finish the two operations of electric coagulation and shearing without replacing the instrument, and has convenient operation, time saving, safety and reliability.
In the invention, the electric coagulation wire is exposed, and the wire moves along with the action of the scissors, so that the service life of the wire is influenced.
Disclosure of Invention
The technical problems solved by the invention are as follows: how to conceal the positioning guiding movement of the electric coagulation wires and scissors of the electric coagulation scissors.
In order to solve the technical problems, the invention provides the following technical scheme: the front end scissors mechanism comprises a pair of scissors bodies, a middle support, a control mechanism and a third steel wire rope, wherein the top of the middle support is hinged with the pair of scissors bodies, the bottom of the middle support is hinged with the wire barrel, the control mechanism controls the opening, closing and equidirectional swinging of the pair of scissors bodies through a first group (first steel wire rope and a second steel wire rope), and the control mechanism controls the swinging of the middle support through the third steel wire rope; the electrode is fixedly connected with the wire barrel through an electric coagulation wire, and then connected with the negative plate through a human body to form an electric coagulation loop, and the electric coagulation wire is arranged in the wire barrel.
According to the technical scheme, the working principle of the positioning guide surgical electric coagulation scissors is as follows: the control mechanism controls the opening, closing and equidirectional swinging of the pair of scissors bodies in a mode of winding a first group (a first steel wire rope and a second steel wire rope) so as to clamp and swing left and right the pair of scissors bodies; the control mechanism controls the swing of the middle support in a mode of winding the third steel wire rope, and the middle support drives the pair of scissors bodies to swing back and forth.
According to the technical scheme, when the pair of scissors bodies are clamped, swung left and right and swung back and forth, the wire barrel is kept static, the electric coagulation wire hidden in the wire barrel cannot act along with the movement of the pair of scissors bodies, and the electric coagulation wire is well protected.
As an illustration of specific wiring of the electric coagulation wire in the technical scheme, the bottom of the wire barrel is fixedly connected with an electric coagulation wire connecting sleeve, a wire hole is formed in the lower portion of the electric coagulation wire connecting sleeve, and the electric coagulation wire is fixedly connected with the wire hole.
The middle support is conical, and a wiring groove for the first group of steel wire ropes to pass through is formed in the side wall of the middle support. The middle support is conical, the first group (the first and the second) of steel wire ropes are hidden in the wiring groove of the concave middle support, and other devices are not arranged in the middle of the front end scissor mechanism, so that the whole front end scissor mechanism is smoothly transited, no edges and corners are formed, and the injury to a human body is avoided.
The front end scissor mechanism is provided with a first group of guide wheels for guiding the first group (the first guide wheel and the second guide wheel) of the wire rope, and the first group of guide wheels are positioned in the wire cylinder, so that the first group (the first guide wheel and the second guide wheel) of the wire rope can be effectively prevented from damaging a human body.
The first shaft and the second shaft are fixedly arranged in the wire barrel and are arranged in parallel up and down; the bottom of the middle support is hinged on a first shaft; the first group of guide wheels comprises an upper guide wheel group and a lower guide wheel group, the upper guide wheel group is hinged on the first shaft, and the lower guide wheel group is hinged on the second shaft. The bottom of the middle support is in a lug shape and stretches into the wire barrel, and the middle support rotates to fix the first shaft so as to prevent the first shaft from rotating to hurt a human body. Similarly, the upper guide wheel set and the lower guide wheel set rotate and the second shaft is fixed. After bypassing the upper guide wheel group, the first group of steel wire ropes tangentially pass through the lower guide wheel group and are connected with the control mechanism, and the design can effectively avoid excessive bending of the first group of steel wire ropes so as to prolong the service life of the first group of steel wire ropes.
The root of any one of the pair of scissors bodies is provided with a mounting notch, one side of any one of the pair of scissors bodies is provided with a radial terminal mounting hole and a first steel wire rope groove, the other side of any one of the pair of scissors bodies is provided with an axial terminal mounting hole and a second steel wire rope groove, and the central angle of the first steel wire rope groove and the central angle of the second steel wire rope groove are smaller than 360 degrees; the left scissors body and the right scissors body in the pair of scissors bodies are installed together in a staggered mode, and one side of the left scissors body, provided with the axial terminal installation hole, is positioned in the installation notch of the right scissors body. According to the above description, the left scissors body and the right scissors body have the same structure and are hinged in the U-shaped groove at the top of the middle support through the same shaft. Under the prerequisite that the middle part supports and be coniform, the staggered arrangement of left scissors body and right scissors body makes the arrangement of first group wire rope skew one side, has increased the space that the first group guide pulley was placed for the diameter of guide pulley increases, and wire rope winding wrap angle also increases in succession on the guide pulley, thereby has prolonged wire rope's life, and has improved wire rope's equivalent allowable intensity, will fix a position the life of direction operation electric coagulation scissors and wholly improve.
The control mechanism comprises a pitching active guide wheel set, a left active guide wheel set and a right active guide wheel set; the middle part of the third steel wire rope is fixedly connected with the bottom of the middle support, the left end of the third steel wire rope is wound and fixed on the pitching active guide wheel set in a counterclockwise manner, and the right end of the third steel wire rope is wound and fixed on the pitching active guide wheel set in a clockwise manner; the right-side open steel wire rope fixedly connected with the right scissors body axial terminal mounting hole is wound and fixed on the left driving guide wheel set in a anticlockwise manner, and the right-side closed steel wire rope fixedly connected with the right scissors body radial terminal mounting hole is wound and fixed on the left driving guide wheel set in a clockwise manner; the left open steel wire rope fixedly connected with the axial terminal mounting hole of the left scissor body is wound and fixed on the right driving guide wheel set anticlockwise, and the left closed steel wire rope fixedly connected with the radial terminal mounting hole of the left scissor body is wound and fixed on the right driving guide wheel set clockwise.
According to the above description, the pitching driving guide wheel group drives the middle support to do pitching motion, and the middle support drives the pair of scissors bodies to do forward and backward swinging. The left driving guide wheel group and the right driving guide wheel group can complete three combined movements: first, the left driving guide wheel set and the right driving guide wheel set rotate anticlockwise in the same direction; secondly, the left driving guide wheel set and the right driving guide wheel set rotate clockwise in the same direction; third, the left and right active guide sets rotate in opposite directions, i.e., the left active guide set rotates counterclockwise and the right active guide set rotates clockwise, or the left active guide set rotates clockwise and the right active guide set rotates counterclockwise. The three combined movements drive a pair of scissors bodies to finish opening and closing actions and swing in the same direction (the left scissors body and the right scissors body swing in the same direction or the left scissors body and the right scissors body swing in the same direction).
The wiring groove comprises a left wiring groove positioned on the left side of the middle support and a right wiring groove positioned on the right side of the middle support; the right side opening steel wire rope fixedly connected with the right scissor axial terminal mounting hole, the left side closing steel wire rope fixedly connected with the left scissor radial terminal mounting hole are positioned at the front sides of the pair of scissor bodies, the right side closing steel wire rope fixedly connected with the right scissor radial terminal mounting hole, and the left side opening steel wire rope fixedly connected with the left scissor axial terminal mounting hole are positioned at the rear sides of the pair of scissor bodies; the right opening steel wire rope and the left closing steel wire rope downwards pass through the left wiring groove and then bypass the left upper guide wheel set of the first group of guide wheels, then tangentially pass through the left lower guide wheel set of the first group of guide wheels, after bypassing the left inner side upper guide wheel set of the left upper guide wheel set, then pass through the left inner side lower guide wheel set of the left lower guide wheel set, and after bypassing the left outer side upper guide wheel set of the left upper guide wheel set, then pass through the left outer side lower guide wheel set of the left lower guide wheel set; the right closed steel wire rope and the left open steel wire rope downwards pass through the right wiring groove and then bypass the right upper guide wheel set of the first group of guide wheels, then tangentially pass through the right lower guide wheel set of the first group of guide wheels, after bypassing the right outer upper guide wheel set of the right upper guide wheel set, then pass through the right outer lower guide wheel set of the right lower guide wheel set, and after bypassing the right inner upper guide wheel set of the right upper guide wheel set, the left open steel wire rope passes through the right inner lower guide wheel set of the right lower guide wheel set. The bottom of the middle support hinged with the first shaft is positioned between the left upper guide wheel set and the right upper guide wheel set.
The positioning guiding surgical electric coagulation scissors have the beneficial effects that:
first, under the condition of guaranteeing a pair of scissors every single move, beat and centre gripping degree of freedom, will carry out the first group guide pulley that leads to first group wire rope and place in the line section of thick bamboo, the middle part supports to be coniform, and bilateral symmetry has the line slot of walking, and other devices are not had in the middle part, guarantees the whole slick and sly transition of front end scissors mechanism, does not have the edges and corners, avoids causing the injury to the human body.
Second, through the crisscross connection of the both sides scissors body, namely, left scissors body and right scissors body, the first group wire rope's of connecting left scissors body and right scissors body the arrangement deflection one end has increased the space that the first group guide pulley was placed for the diameter of guide pulley increases, and wire rope winding wrap angle also increases in succession on the guide pulley, thereby has prolonged wire rope's life, and improved wire rope's equivalent allowable intensity, with the whole life that improves of location direction operation electric coagulation scissors.
Thirdly, the electric coagulation wire is fixedly connected to the bottom of the wire cylinder, the electric coagulation wire does not move along with the pair of scissors bodies, the electric coagulation wire is little in abrasion, the service life is long, and the service life of the micro-instrument is integrally improved.
Drawings
The invention is further described with reference to the accompanying drawings:
FIG. 1 is a schematic view of a positioning guide surgical electric coagulation shears according to the present invention;
FIG. 2 is a schematic view of the front end scissor mechanism 10 of FIG. 1;
FIG. 3 is a schematic plan view of the front end scissor mechanism 10 of FIG. 2;
FIG. 4 is a schematic view of the front end scissor mechanism 10 of FIG. 3 from the rear right;
FIG. 5 is a schematic view of the front end scissor mechanism 10 of FIG. 4 from the left;
FIG. 6 is a rear view of FIG. 3;
FIG. 7 is a schematic view of the structure of the left scissor body 11-1;
FIG. 8 is a schematic view of the left scissor body 11-1 from another perspective;
FIG. 9 is a schematic view of the structure of the right scissor body 11-2;
FIG. 10 is a schematic view of the right scissor body 11-2 from another perspective;
fig. 11 is a schematic structural view of the bobbin 13;
fig. 12 is a schematic view of the construction of the electric coagulation wire connection sleeve 140 installed in the electric coagulation wire connection sleeve installation hole 130 of the wire barrel 13 and the electric coagulation wire 14 therein;
fig. 13 is a schematic structural view of the control mechanism 30.
The symbols in the drawings illustrate:
10. a front end scissor mechanism; 11. a pair of scissors bodies; 11-1, left scissors body; 11-2, right scissors body; 110. a mounting notch; 111. radial terminal mounting holes; 112. an axial terminal mounting hole; 12. a middle support; 120. a wiring groove; 121. a third shaft; 122. a third wire rope terminal hole; 13. a wire barrel; 130. mounting holes of the electric coagulation wire connecting sleeve; 131. a first shaft; 132. a second shaft; 14. an electrocoagulation wire; 140. an electrocoagulation lead connecting sleeve; 151. a left disc spring; 152. a right disc spring;
20. a carbon fiber tube;
30. a control mechanism; 300. a mechanism bottom plate; 31. pitching initiative guide wheel group; 32. a left driving guide wheel group; 33. a right driving guide wheel group; 34. a longitudinal guide wheel; 35. a transverse guide wheel;
43. the right side opens the steel wire rope; 44. closing the steel wire rope on the right side; 41. the left side is opened with a steel wire rope; 42. closing the steel wire rope on the left side; 45. a third wire rope;
511. the left inner side is provided with an upper guide wheel; 512. an upper left guide wheel; 513. an upper right outer guide wheel; 514. an upper guide wheel on the right inner side; 521. a left inner lower guide wheel; 522. a left outer lower guide wheel; 523. a right outer lower guide wheel; 524. and the right inner side lower guide wheel.
Detailed Description
Referring to fig. 1, a positioning guided surgical electric coagulation shears includes a front end shears mechanism 10 and a control mechanism 30 connected by a carbon fiber tube 20.
As shown in fig. 2, the front end scissor mechanism comprises a pair of scissor bodies 11, a middle support 12 with the top hinged with the pair of scissor bodies and the bottom hinged with a wire drum 13.
The electrodes are connected to an electrocoagulation wire connection sleeve 140 by means of an electrocoagulation wire 14, the electrocoagulation wire connection sleeve 140 being fixedly connected to the wire drum 13, the electrocoagulation wire being arranged in the wire drum 13.
Referring to fig. 7 to 10, the pair of scissors bodies 11 includes a left scissors body 11-1 and a right scissors body 11-2, wherein the root of any one of the left scissors body 11-1 and the right scissors body 11-2 is provided with a mounting notch 110, one side of any one of the scissors bodies is provided with a radial terminal mounting hole 111 and a first wire rope groove, the other side of any one of the scissors bodies is provided with an axial terminal mounting hole 112 and a second wire rope groove, and the central angles of the first wire rope groove and the second wire rope groove are both smaller than 360 degrees. The left scissors body 11-1 and the right scissors body 11-2 are installed together in a staggered mode, and one side of the left scissors body, provided with the axial terminal installation hole, is positioned in the installation notch of the right scissors body.
Referring to fig. 3 to 6, the middle support 12 is conical, a U-shaped groove is formed in the upper portion of the middle support 12, a third shaft 121 is fixedly disposed in the U-shaped groove, a left wiring groove and a right wiring groove are symmetrically formed in the middle cone of the middle support 12, and a third wire rope terminal hole 122 and a groove for guiding the third wire rope 45 are formed in the bottom of the middle support 12. The outer end surfaces of the left scissors body and the right scissors body are respectively pressed into the left belleville spring 151 and the right belleville spring 152 and then are connected in the U-shaped groove supported in the middle by the third shaft in a clearance fit mode, and reference is made to fig. 7 and 10.
Referring to fig. 1, 3 and 11, the upper portion of the wire barrel 13 is provided with a U-shaped groove, and the lower portion of the wire barrel 13 is a mating surface connected with the carbon fiber tube 20.
Referring to fig. 11 and 12, six wire holes and an electrocoagulation wire installation hole are formed in the bottom of the u-shaped groove, and the six wire holes are respectively penetrated by a right-side opening wire rope 43, a right-side closing wire rope 44, a left-side opening wire rope 41, a left-side closing wire rope 42 and a third wire rope 45. The electric coagulation wire mounting hole is fixedly connected with an electric coagulation wire connecting sleeve 140, a wire hole is formed in the lower portion of the electric coagulation wire connecting sleeve, and an electric coagulation wire 14 is fixedly connected with the wire hole.
Referring to fig. 3 to 6, a first group of guide wheels for guiding the first group of steel wire ropes are arranged in the U-shaped groove of the wire drum 13; the U-shaped groove of the wire barrel 13 is fixedly provided with a first shaft 131 and a second shaft 132 which are arranged in parallel up and down. The bottom of the middle support 12 is hinged on a first shaft; the first group of guide wheels comprises an upper guide wheel group and a lower guide wheel group, the upper guide wheel group is hinged on the first shaft, and the lower guide wheel group is hinged on the second shaft.
As shown in fig. 13, the control mechanism 30 includes a pitch driving pulley group 31, a left driving pulley group 32 and a right driving pulley group 33 mounted on a mechanism base plate 300, and the pitch driving pulley group 31, the left driving pulley group 32 and the right driving pulley group 33 are uniformly distributed along the circumferential direction of the mechanism base plate. The center of the mechanism bottom plate 300 is provided with three pairs of longitudinal guide wheels 34 and three pairs of transverse guide wheels 35, and the three pairs of longitudinal guide wheels 34 and the three pairs of transverse guide wheels 35 are uniformly distributed along the circumferential direction. The three pairs of longitudinal guide wheels are positioned at the inner sides of the three pairs of transverse guide wheels, and the three pairs of transverse guide wheels are positioned at the inner sides of the pitching driving guide wheel set 31, the left driving guide wheel set 32 and the right driving guide wheel set 33.
The right scissor body axial terminal mounting hole is fixedly connected with a right-side opening steel wire rope 43, the left scissor body radial terminal mounting hole is fixedly connected with a left-side closing steel wire rope 42, and the right-side opening steel wire rope 43 and the left-side closing steel wire rope 42 are positioned at the front sides of the pair of scissor bodies 11; the right scissor body radial terminal mounting hole is fixedly connected with a right-side closing wire rope 44, the left scissor body axial terminal mounting hole is fixedly connected with a left-side opening wire rope 41, and the right-side closing wire rope 44 and the left-side opening wire rope 41 are positioned at the rear sides of the pair of scissor bodies. The second wire rope terminal hole 122 of the middle support 12 is fixedly connected to the middle of the third wire rope 45.
The right open wire rope 43 and the left closed wire rope 42 pass through the left routing groove downwards and then bypass the left upper guide wheel set of the first set of guide wheels, then tangentially pass through the left lower guide wheel set of the first set of guide wheels, after bypassing the left inner upper guide wheel 511 of the left upper guide wheel set, then pass through the left inner lower guide wheel 521 of the left lower guide wheel set, and after bypassing the left outer upper guide wheel 512 of the left upper guide wheel set, then pass through the left outer lower guide wheel 522 of the left lower guide wheel set. The right closed steel wire rope 44 and the left open steel wire rope 41 pass through the right wiring groove downwards and then bypass the right upper guide wheel set of the first set of guide wheels, then tangentially pass through the right lower guide wheel set of the first set of guide wheels, after bypassing the right outer upper guide wheel 513 of the right upper guide wheel set, then pass through the right outer lower guide wheel 523 of the right lower guide wheel set, and after bypassing the right inner upper guide wheel 514 of the right upper guide wheel set, then pass through the right inner lower guide wheel 524 of the right lower guide wheel set.
The right-side open wire rope 43 is wound around and fixed to the left driving pulley set counterclockwise after passing through the second pair of longitudinal guide pulleys and the second pair of transverse guide pulleys, and the right-side closed wire rope 44 is wound around and fixed to the left driving pulley set clockwise after passing through the second pair of longitudinal guide pulleys and the second pair of transverse guide pulleys. The left open wire rope 41 is wound around and fixed to the right driving pulley set counterclockwise after passing through the third pair of longitudinal guide pulleys and the third pair of transverse guide pulleys, and the left closed wire rope 42 is wound around and fixed to the right driving pulley set clockwise after passing through the third pair of longitudinal guide pulleys and the third pair of transverse guide pulleys. The left end of the second steel wire rope is wound and fixed on the pitching active guide wheel set anticlockwise after passing through the first pair of longitudinal guide wheels and the first pair of transverse guide wheels, and the right end of the second steel wire rope is wound and fixed on the pitching active guide wheel set clockwise after passing through the first pair of longitudinal guide wheels and the first pair of transverse guide wheels
In actual operation, the passive driving wheel in the pitching driving wheel set 31, the left driving wheel set 32 and the right driving wheel set 33 are driven by the driving device to rotate clockwise and anticlockwise in the axial direction, and the passive driving wheel drives corresponding steel wire ropes fixed on the passive driving wheel set to tension and relax when rotating, so that the left driving wheel set 32 and the right driving wheel set 33 drive the left scissor body 11-1 and the right scissor body 11-2 to finish the closing and opening movements of the front pair of scissor bodies 11, and the pitching driving wheel set 31 drives the front pair of scissor bodies to perform pitching movements, namely to swing back and forth.
The foregoing is merely illustrative of the preferred embodiments of the present invention, and modifications in detail will readily occur to those skilled in the art based on the teachings herein without departing from the spirit and scope of the invention.
Claims (4)
1. The utility model provides a positioning guide operation electric coagulation scissors, includes front end scissors mechanism (10) and control mechanism (30) that are connected by carbon fiber tube (20), front end scissors mechanism includes a pair of scissors body (11), the middle part support (12) that the top is articulated with a pair of scissors body and bottom is articulated with a section of thick bamboo (13), control mechanism controls opening, closure, the syntropy swing of a pair of scissors body through first, second wire rope, control mechanism controls the swing of middle part support through third wire rope (45); the method is characterized in that: the electrode is connected with the wire cylinder (13) through an electric coagulation wire (14), and then connected with the negative plate through a human body to form an electric coagulation loop, wherein the electric coagulation wire is arranged in the wire cylinder;
the front-end scissor mechanism (10) is provided with a first group of guide wheels for guiding a first group of steel wire ropes, and the first group of guide wheels are positioned in the wire drum (13);
a first shaft (131) and a second shaft (132) are fixedly arranged in the wire barrel (13), and the first shaft and the second shaft are arranged in parallel up and down;
the bottom of the middle support (12) is hinged on a first shaft;
the first group of guide wheels comprises an upper guide wheel group and a lower guide wheel group, the upper guide wheel group is hinged on the first shaft, and the lower guide wheel group is hinged on the second shaft;
the root of any one of the pair of scissors bodies (11) is provided with a mounting notch (110), one side of any one of the pair of scissors bodies is provided with a radial terminal mounting hole (111) and a first steel wire rope groove, the other side of any one of the pair of scissors bodies is provided with an axial terminal mounting hole (112) and a second steel wire rope groove, and the central angles of the first steel wire rope groove and the second steel wire rope groove are smaller than 360 degrees;
a left scissor body (11-1) and a right scissor body (11-2) in the pair of scissor bodies are arranged in a staggered manner, and one side of the left scissor body, which is provided with an axial terminal mounting hole, is positioned in a mounting notch of the right scissor body;
the control mechanism (30) comprises a pitching driving guide wheel set (31), a left driving guide wheel set (32) and a right driving guide wheel set (33);
the middle part of the third steel wire rope (45) is fixedly connected with the bottom of the middle support (12), the left end of the third steel wire rope is wound and fixed on the pitching active guide wheel set in a counterclockwise manner, and the right end of the third steel wire rope is wound and fixed on the pitching active guide wheel set in a clockwise manner;
a right-side open steel wire rope (43) fixedly connected with the axial terminal mounting hole of the right scissor body (11-2) is wound and fixed on the left driving guide wheel set in a anticlockwise manner, and a right-side closed steel wire rope (44) fixedly connected with the radial terminal mounting hole of the right scissor body (11-2) is wound and fixed on the left driving guide wheel set in a clockwise manner;
the left open steel wire rope (41) fixedly connected with the axial terminal mounting hole of the left scissor body (11-1) is wound and fixed on the right driving guide wheel set in a anticlockwise manner, and the left closed steel wire rope (42) fixedly connected with the radial terminal mounting hole of the left scissor body (11-1) is wound and fixed on the right driving guide wheel set in a clockwise manner.
2. A positioning guided surgery electrocoagulation shears as claimed in claim 1 wherein: the bottom of the wire barrel (13) is fixedly connected with an electric coagulation wire connecting sleeve (140), a wire hole is formed in the lower portion of the electric coagulation wire connecting sleeve, and an electric coagulation wire (14) is fixedly connected with the wire hole.
3. A positioning guided surgery electrocoagulation shears as claimed in claim 1 wherein: the middle support (12) is conical, and a wiring groove (120) for the first group of steel wire ropes to pass through is formed in the side wall of the middle support.
4. A positioning guided surgery electrocoagulation shears as claimed in claim 3 wherein: the wiring grooves (120) comprise left wiring grooves positioned on the left side of the middle support and right wiring grooves positioned on the right side of the middle support;
the right side opening steel wire rope (43) fixedly connected with the right scissor axial terminal mounting hole, the left side closing steel wire rope (42) fixedly connected with the left scissor radial terminal mounting hole are positioned at the front sides of the pair of scissor bodies (11), the right side closing steel wire rope (44) fixedly connected with the right scissor radial terminal mounting hole, and the left side opening steel wire rope (41) fixedly connected with the left scissor axial terminal mounting hole are positioned at the rear sides of the pair of scissor bodies;
the right opening steel wire rope (43) and the left closing steel wire rope (42) downwards pass through the left wiring groove and then bypass the left upper guide wheel set of the first set of guide wheels, then tangentially pass through the left lower guide wheel set of the first set of guide wheels, after bypassing the left inner side upper guide wheel (511) of the left upper guide wheel set, then pass through the left inner side lower guide wheel (521) of the left lower guide wheel set, and after bypassing the left outer side upper guide wheel (512) of the left upper guide wheel set, then pass through the left outer side lower guide wheel (522) of the left lower guide wheel set;
the right closed steel wire rope (44) and the left open steel wire rope (41) downwards pass through the right wiring groove and then bypass the right upper guide wheel set of the first set of guide wheels, then tangentially pass through the right lower guide wheel set of the first set of guide wheels, after bypassing the right outer upper guide wheel (513) of the right upper guide wheel set, then pass through the right outer lower guide wheel (523) of the right lower guide wheel set, and after bypassing the right inner upper guide wheel (514) of the right upper guide wheel set, the left open steel wire rope passes through the right inner lower guide wheel (524) of the right lower guide wheel set.
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| CN201710291800.7A CN107049477B (en) | 2017-04-28 | 2017-04-28 | Positioning guiding surgical electric coagulation scissors |
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| CN107789062A (en) * | 2017-12-11 | 2018-03-13 | 哈尔滨思哲睿智能医疗设备有限公司 | A kind of bipolar wrench structure for Minimally Invasive Surgery |
| CN110051428B (en) * | 2019-05-15 | 2021-11-23 | 成都五义医疗科技有限公司 | Improved surgical instrument head assembly |
| CN113081247B (en) * | 2021-04-09 | 2022-10-04 | 珠海市司迈科技有限公司 | Universal bending multifunctional operation electrode |
| WO2023276077A1 (en) * | 2021-06-30 | 2023-01-05 | リバーフィールド株式会社 | Surgical instrument |
| CN115530965A (en) * | 2022-01-04 | 2022-12-30 | 常州唯精医疗机器人有限公司 | Electric coagulation scissors mechanism, equipment and surgical robot for operation |
| CN116250895B (en) * | 2023-01-31 | 2024-04-12 | 极限人工智能有限公司 | Multi-degree-of-freedom abdominal cavity surgical forceps based on steel wire coupling and surgical robot |
| CN117257440A (en) * | 2023-09-20 | 2023-12-22 | 中国医学科学院北京协和医院 | Spring scissors for neurosurgery |
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