CN111887976A - A bipolar electrocoagulation forceps with microscissors - Google Patents

Abstract

The invention discloses a bipolar electrocoagulation tweezers with a micro-scissor function, which comprises an electrocoagulation tweezers body (10), the electrocoagulation tweezers body has two tweezers (13); Two blades (20) inside the tweezers (13) with opposite cutting edges, the blades (20) can be slid along the length of the tweezers (13) to extend or retract from the tweezers (14), the The blade (20) is provided with a magnetic structure, so that a certain adsorption effect is produced after the two blades are in contact; and a driving device (30) installed on the tweezers (13) for driving the blade (20) to extend or retract . The bipolar electrocoagulation forceps has the function of micro scissors, which can simplify the operation and shorten the operation time. Under the condition of hemostasis, the blades used as microscissors are stored in the two forceps flaps, which do not affect the surgical field and do not injure the surrounding tissue. Can also be used as a jig.

Description

A bipolar electrocoagulation forceps with microscissors

technical field

The invention relates to the field of medical instruments, in particular to a bipolar electrocoagulation forceps with a micro-scissor function.

Background technique

Bipolar electrocoagulation forceps, micro scissors (referred to as micro scissors) and suction devices are three commonly used instruments in neurosurgery, which are used for hemostasis, shearing and aspiration respectively. Use additional forceps to pick up the brain patch. Neurosurgery is performed under the microscope field of view, and the above instruments need to be frequently used alternately during the operation, which makes the operation time long and the doctor labor-intensive.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a bipolar electrocoagulation tweezers with micro-scissor function, so as to solve the above-mentioned defects existing in the related art at least to a certain extent.

For reaching the above object, the technical scheme adopted in the present invention is as follows:

A bipolar electrocoagulation forceps with micro-scissor function, comprising:

an electrocoagulation tweezers body, the electrocoagulation tweezers body has two tweezers;

Correspondingly, the two blades are installed inside the two tweezers and have opposite cutting edges. The blades can slide along the length of the tweezers to extend or retract from the tips of the tweezers. A certain adsorption effect occurs when the two blades come into contact; and

A drive device mounted on the tweezers for driving the blade to extend or retract.

Preferably, the magnetic structure includes a layer of magnetic powder attached to the surface of the blade or magnetic powder dispersed within the material of the blade.

Preferably, the driving device comprises: a rack provided on the handle portion of the blade; a gear device fixed on the tweezers, and the gear is drivingly matched with the rack; A first foot control switch connected to the gear and used for controlling the rotation of the gear.

Preferably, the gear device comprises: a casing provided with a wheel hole and a rope hole; a gear shaft supported in the casing, and a gear part passing through the wheel hole; The gear is an elastic piece for keeping the initial state; a plurality of reversing parts are arranged in the housing and used to change the movement direction of the pulling rope.

Preferably, the elastic member is a tension spring.

Preferably, the gear has a sector-shaped structure.

Preferably, the cutting edge of the blade is provided with a blocking structure for preventing the tissue from sliding along the cutting edge.

Preferably, a non-slip structure is also provided on the inner end face of the forceps tip for holding the suction device and the brain cotton sheet.

Compared with the prior art, the present invention at least has the following beneficial effects:

The bipolar electrocoagulation forceps has the function of micro scissors, which can simplify the operation and shorten the operation time.

Under the condition of hemostasis, the blades used as microscissors are stored in the two forceps flaps, which do not affect the surgical field and do not injure the surrounding tissue.

The structure of the blade driving device is simple.

The inner end face of the forceps tip is also integrated with a holding part, which can be used to hold the suction device and the brain cotton piece.

There are teeth on the cutting edge, and the operation of cutting tissue is reliable.

Description of drawings

Figure 1 is a schematic diagram of the structure of a bipolar electrocoagulation tweezers with a micro-scissor function;

Fig. 2 is the schematic diagram of the anti-skid structure of tweezers;

Fig. 3 is the schematic diagram of the driving device of the blade;

Fig. 4 is the structural representation of blade;

Fig. 5 is the structural schematic diagram of the pull rope;

FIG. 6 is a schematic diagram of the retracted state of the blade;

Fig. 7 is a schematic diagram of a blade extending state;

Reference number:

10. Electrocoagulation forceps body;

11. Forceps seat; 12. Guide rope loop; 13. Forceps flap; 14. Forceps tip; 15. Anti-skid structure; 16. Receiving cavity;

20. Blade;

21. Knife handle; 22. Knife body; 23. Blocking structure;

30. Drive device;

31, rack; 32, gear device; 321, housing; 322, gear; 323, reversing part; 324, rope; 325, shaft; 326, rope hole; 327, elastic part; 33, first foot control switch; 34, guide ring;

40. The second foot control switch.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and embodiments.

As shown in FIG. 1 , the bipolar electrocoagulation forceps with micro-scissor function includes an electrocoagulation forceps body 10 , two blades 20 , and a driving device 30 for the blades 20 .

The electrocoagulation forceps body 10 includes two forceps petals 13 , the rear ends of the forceps petals 13 are combined together by the forceps seat portion 11 , and the front end of the forceps petals 13 is the forceps tip 14 . The two blades 20 are correspondingly installed inside the two tweezers 13, and are slidably matched with the tweezers 13, so that the blades 20 can slide along the length direction of the tweezers 13 to extend or retract from the tweezers tip 14. The mouths are opposite to each other, so that when the two tweezer tips 14 are operated to approach/separate, the two blades 20 move relative to each other, so that the function of micro scissors can be realized. The two tweezers 13 are connected to the power source through cables for applying current to the tweezers tip 14 to achieve electrocoagulation and hemostasis. An anti-skid structure 15 is also provided on the inner end face of the tweezers tip 14. The anti-skid structure 15 can be a convex point, a convex strip, a grid-shaped convex, etc. In this embodiment, it is a convex strip, as shown in FIG. 2, the anti-skid structure 15 makes the Coagulation forceps can be used as clamps to hold suction and brain tissue.

Due to the long length of the tweezers 13, in order to ensure the reliability of the shearing operation when used as a micro-scissor, the blade 20 is provided with a magnetic structure, so that the two blades 20 are in contact with each other to produce a certain adsorption effect, so as to better adhere to the Taken together, the specific magnetic structures can be magnetic sheets, magnetic powder layers, or magnetic powders, and these magnetic structures can be disposed on the blade 20 through damascene, electroplating, and coating processes, more specifically, on the blade body 22 of the blade 20, and also on the blade 20. The magnetic powder can be directly dispersed in the material for making the blade 20, so that the obtained blade 20 has certain magnetic properties.

The driving device 30 is provided on the forceps flap 13 for driving the blade 20 to extend or retract from the forceps tip 14 . Please refer to FIG. 1 and FIG. 3 , the driving device 30 of this embodiment includes: a rack 31 disposed on the handle portion 21 of the blade 20 , a gear device 32 for driving the rack 31 , and a pulling rope 324 for pulling the gear 322 to rotate , and the first foot control switch 33 for controlling the action of the pull cord 324 . The gear device 32 is fixed on the outer side of the tweezers 13, and its gear 322 is in driving cooperation with the rack 31 of the knife handle 21. The pull rope 324 extends along the tweezers 13 from the gear 322 device 32 to the tweezers seat 11, and then continues. The extension is connected to the first foot control switch 33 , and a guide rope loop 12 is further provided on the forceps petals 13 to hold the pull rope 324 on the forceps petals 13 .

As shown in FIG. 3 , the gear device 32 specifically includes: a housing 321 provided with a wheel hole and a rope hole 326 , a gear 322 , an elastic member 327 , and a plurality of reversing parts 323 . The casing 321 is fixedly matched with the tweezers 13 , the gear 322 is supported in the casing 321 through the shaft 325 , and the tooth portion of the gear 322 passes through the wheel hole and cooperates with the rack 31 , and the elastic member 327 specifically adopts a A tension spring, which is connected between the housing 321 and the gear 322, is used to keep the gear 322 in an initial state in which the blade 20 is retracted within the tweezers 13 (the state shown in FIG. 6 ) . A plurality of reversing portions 323 are fixed in the housing 321 , and one end of the pull rope 324 is connected to the gear 322 , and then passes through the plurality of reversing portions 323 and passes through the rope hole 326 , and is connected to the first foot switch 33 . When stepping on the first foot control switch 33, the pull rope 324 drives the gear 322 to rotate clockwise in FIG. 3, and drives the handle 21 to move to the right, so that the blade 20 protrudes from the tweezers tip 14 (as shown in FIG. 7). state); after the first foot control switch 33 is released, the pulling force of the pull rope 324 on the gear 322 is released, and under the action of the tension spring, the gear 322 rotates and resets in the counterclockwise direction in FIG. 3 to drive the handle 21 Moving to the left, the blade 20 is reset and retracted into the forceps tip 14 (the state shown in FIG. 6 ). It can be understood that the above reset function can also be achieved by installing a torsion spring on the support shaft 325 of the gear 322 .

Among them, the gear 322 adopts a fan-shaped structure, which reduces the volume of the entire gear device 32 and is beneficial to miniaturization.

Please refer to FIG. 4 , the blade 20 includes a blade body 22 and a blade handle 21, and a blocking structure 23 is further provided on the cutting edge of the blade 20, specifically a plurality of teeth, through which, when the blade 20 is used to cut tissue during surgery, It can prevent tissue from sliding along the cutting edge, making the operation of cutting tissue more reliable.

In addition, in order to prevent the blade 20 from shaking when sliding in the tweezers 13, as shown in FIG. 3, a guide ring 34 is provided in the tweezers 13 to match the handle portion 21, and the handle portion 21 is preferably a prismatic structure or a flat structure .

Please refer to FIG. 5 , the pulling rope 324 includes a wire tube 3241 and a core wire 3242. The core wire 3242 can slide in the wire tube 3241, and the two ends of the wire tube 3241 are fixed on the first foot control switch 33 and the tweezers seat 11. The core wire Both ends of the 3242 are connected to the gear 322 and the action part of the first foot switch 33 .

The usage method of the above-mentioned bipolar electrocoagulation forceps with micro-scissor function is as follows:

When used as electrocoagulation forceps, the blade 20 is in a retracted state and is kept in the forceps tip 14, as shown in FIG. The tip 14 is connected with electric current to realize the function of electrocoagulation and hemostasis.

When used as a microscissor, step on the first foot switch 33, the pull rope 324 drives the gear 322 to rotate clockwise in FIG. 3, and drives the blade 20 to move in the right direction in FIG. The forceps tip 14 is extended and enters the extended state, as shown in FIG. 7 , in this state, the opening and closing actions of the two forceps flaps 13 are manually controlled to drive the two blades 20 for shearing motion, thereby realizing the shearing of the tissue. After completion, release the first foot control switch 33, the gear 322 rotates and resets in the counterclockwise direction in FIG. 3 under the action of the tension spring, and the driving blade 20 resets, retracts into the tweezer tip 14, and remains in the retracted state ,As shown in Figure 6.

When used as a clamp, align the forceps tip 14 with the suction device or the brain cotton piece, control the two forceps flaps 13 by hand, and clamp the suction device or the brain cotton piece for moving operation or other operations.

It can be seen that the above-mentioned bipolar electrocoagulation forceps have at least the following effects: 1. With the function of micro-scissors, the micro-scissors and the electro-coagulation forceps do not need to be frequently replaced during the operation, thereby simplifying the operation and shortening the operation time. 2. Under the condition of hemostasis, that is, when used as electrocoagulation forceps, the blades 20 used as micro-scissors are stored in the two forceps flaps 13, which will not affect the operative field and will not injure the surrounding tissue. 3. The drive device 30 of the blade 20 has a simple structure. 4. An anti-skid structure 15 is integrated on the inner end face of the forceps tip 14, which can be used to hold the suction device and the brain cotton piece. 5. The front end of the cutting edge is provided with a blocking structure 23, which can prevent the tissue from protruding during the cutting operation, making the operation more reliable and efficient; 6. The blade 20 is provided with a magnetic structure, which makes the cutting operation more reliable.

The present invention has been described in detail above through specific embodiments. These detailed descriptions are only intended to help those skilled in the art to understand the content of the present invention, and should not be construed as limiting the protection scope of the present invention. Various modifications, equivalent transformations, etc. performed by those skilled in the art on the above solutions under the concept of the present invention shall be included in the protection scope of the present invention.

Claims (8)

1. a bipolar electrocoagulation forceps with micro-scissor function, is characterized in that, comprises: an electrocoagulation forceps body (10), the electrocoagulation forceps body (10) having two forceps petals (13); Correspondingly, two blades (20) installed inside the two tweezers (13) with opposite cutting edges, the blades (20) can slide along the length direction of the tweezers (13) and extend from the tweezers (14) out or retracted, the blade (20) is provided with a magnetic structure, so that the two blades (20) are in contact with each other to produce a certain adsorption effect; and A driving device (30) installed on the forceps flap (13) for driving the blade (20) to extend or retract. 2. The bipolar electrocoagulation tweezers with micro-scissor function according to claim 1, wherein the magnetic structure comprises a magnetic powder layer attached to the surface of the blade (20) or dispersed in the blade (20). 20) Magnetic powder within the material. 3. The bipolar electrocoagulation forceps with micro-scissor function according to claim 1, wherein the driving device (30) comprises: a rack (31) provided on the handle portion (21) of the blade (20); a gear device (32) fixed on the tweezers (13) and having a gear (322) drivingly matched with the rack (31); and A first foot control switch (33) is connected with the gear (322) through a pulling rope (324) and is used for controlling the rotation of the gear (322). 4. The bipolar electrocoagulation forceps with micro-scissor function according to claim 3, wherein the gear device (32) comprises: a housing (321) provided with a wheel hole and a rope hole (326); a gear (322) with the shaft (325) supported in the casing (321) and the tooth portion passing through the wheel hole; an elastic member (327) provided in the housing (321) for maintaining the gear (322) in an initial state; A plurality of reversing parts (323) are arranged in the casing (321) and used for changing the moving direction of the pulling rope (324). 5 . The bipolar electrocoagulation forceps with micro-scissor function according to claim 4 , wherein the elastic member ( 327 ) is a tension spring. 6 . 6. The bipolar electrocoagulation forceps with micro-scissor function according to claim 4, wherein the gear (322) has a fan-shaped structure. 7. The bipolar electrocoagulation forceps with micro-scissor function according to claim 1, wherein the cutting edge of the blade (20) is further provided with a blocking structure (23) for preventing the tissue from sliding along the cutting edge . 8. The bipolar electrocoagulation forceps with micro-scissor function according to claim 1, characterized in that, a non-slip structure (15) is also provided on the inner end face of the forceps tip (14) for clamping the attractor and Brain cotton.

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