CN100459948C

CN100459948C - Forked RF liver exsector

Info

Publication number: CN100459948C
Application number: CNB2007100782719A
Authority: CN
Inventors: 夏锋
Original assignee: First Affiliated Hospital of TMMU
Current assignee: First Affiliated Hospital of TMMU
Priority date: 2007-03-09
Filing date: 2007-03-09
Publication date: 2009-02-11
Anticipated expiration: 2027-03-09
Also published as: CN101019777A

Abstract

The forked RF liver exsector has one hollow trinacriform obtuse exsector head with side hole and made of conductive material, one main operating button, one circuit board and one HF power source connected together via connecting wires; one water pipe and one water flow regulating button communicated to the exsector head; one rotating joint set on the exsector bar and connected to the exsector head; and one clamping handle connected via one power pull rod and one handle joint on the exsector bar to the exsector head for controlling. During operation, the exsector head is first inserted into liver tissue to be exsected, and the clamping handle is then used to control the closing of the exsector head to exsect obtusely and cure liver tissue. The operation is accurate, fast and safe, and the forked RF liver exsector has compact structure, small size and easy operation.

Description

Forked RF liver exsector

Technical field

The present invention relates to a kind of surgical operating instrument, particularly relate to a kind of multi-functional forked RF and cut the liver surgery cutter.

Background technology

Be two general objectives of pursuing in the hepatotomy process safely and fast.Safety mainly being meant in cutting the process of liver few as far as possible hemorrhage or not hemorrhage, does not occur that mistake is cut or inaccurate cutting; Fast be meant dialysis hepatic tissue fast, shorten the time of operation as far as possible.Be covered with a large amount of netted blood vessels and bile duct in the liver organization, if can use the closed thin pipeline of apparatus, manifested the in addition ligation of thicker pipeline simultaneously non-destructive, then the difficult problem of hepatectomy will be readily solved.Operation tool and the method used in the prior art mainly contain: clamp method, high frequency electric knife, ultrasound knife and water cutter.Close thicker pipeline though the clamp method can be pressed from both sides, can cause bleeding profusely of little blood vessel; High frequency electric knife can solidify by electricity and produce the thinner pipeline of eschar sealing, but can not appear the pipeline configuration in the liver, will cause massive hemorrhage when tube wall being damaged with fixed attention by electricity when running into big blood vessel, in addition eschar the operation process in come off easily cause again hemorrhage.Though ultrasound knife and water cutter can be known the pipeline configuration that shows in the liver, do not have the hemostatic function, and the time of disconnected liver are longer.Chinese patent ZL01250021.6 discloses a kind of bipolar liver of dripping and has cut electric knife, can reach the effect of anti-eschar by the cutter head cooling of dripping in operation process.But all there is a main problem in above instrument, is exactly when operation, all is by the hands straightforward manipulation, there is action inertia in cutting process, cutting yardstick bad assurance, accuracy is prone to deviation, does not need tissue such as the trunk that cuts off and security incident occurs than being easier to destroy.

So, in operation process, can make hepatic tissue curing, hemostasis and cutting and anti-eschar, and effective Cutting Control inertia, make operation process faster and security incident not occur be the surgery of liver problem demanding prompt solution.

Summary of the invention

In view of this, the invention provides a kind of multi-functional disconnected liver instrument that can improve hepatotomy operation efficient, its set pair hepatic tissue is implemented curing, hemostasis and cutting and anti-eschar forms as one, for hepatotomy provides a kind of convenient and practical instrument, during use, cutter insert is needed in the liver organization of cutting, the mode of closing by folder is cut off and is undergone surgery, make more accurate, the safety and quick of operation process, and this tool construction compactness, volume little, be convenient to operation and carry.

Fork-shaped RF liver exsector of the present invention is cutter head to be improved on the basis of liver exsector frequently at the cooling electricity of dripping to form.The cutter head of fork-shaped RF liver exsector be the made hollow of conductive material with holes can closed three fork-shaped passivity cutter heads, by be arranged on that rotary joint on the knife bar is installed on the knife bar and by the power pull bar, be arranged on handle joint on the knife bar and close handle with folder and be connected.

Further, described cutter head comprises three pocket knives, and the pocket knife that closes handle one side away from folder is fixedlyed connected with rotary joint, and all the other two pocket knives are connected with the rotary joint hinge;

Further, described hollow is with holes can closed three fork-shaped passivity cutter heads be shaped as cylindrical, and band gaging hole;

Further, described feed pipe internal diameter is the 2-4 millimeter;

Further, described connection lead, feed pipe, power pull bar and handle joint are arranged in the shell of knife bar formation;

Further, described connection lead and feed pipe are controlled by control knob separately, and control knob is arranged on the shell of knife bar formation;

What further, described hollow was with holes can closed three fork-shaped passivity cutter heads be that conducting metal is made;

Beneficial effect of the present invention: since the cutter head of forked RF liver exsector of the present invention adopt the made hollow of conductive material with holes can closed three fork-shaped passivity cutter heads, in operation process, can insert the liver organization that needs cutting to cutter head earlier, in use by handle by the power pull bar control hollow with holes can closed three fork-shaped passivity cutter heads open or press from both sides and close, when clutching handle, pass through handle joint, power pull bar and rotary joint folder close hollow with holes can closed three fork-shaped passivity cutter head passivity cutting solidify hepatic tissue, eliminate the inertia that cutting action brings, make operation process accurate, fast, safety is stopped blooding and anti-eschar simultaneously; The connection lead of forked RF liver exsector of the present invention, feed pipe, power pull bar, circuit board are arranged in the shell of knife bar formation, make it compact conformation, and volume is little, help operation.

Description of drawings

Below in conjunction with view the present invention is specifically described.

Accompanying drawing 1 is a forked RF liver exsector structure cutaway view of the present invention;

Accompanying drawing 2 is a forked RF liver exsector cutter head schematic diagram of the present invention.

The specific embodiment

As shown in Figure 1, the fork-shaped RF liver exsector comprises that cutter head 1, knife bar 2, rotary joint 3, connection lead 4 and the main action button 7, feed pipe 5 and current adjusting button 8, circuit board 9, power pull bar 6, handle joint 10 and folder close handle 11.Cutter head 1 is connected with high frequency electric source by connection lead 4, the main action button 7, circuit board 9, during use, by the main action button 7 energized, carries out the sustained release frequency spectrum.After cutter head 1 is inserted hepatic tissue, utilize the radio frequency heat production can closed little blood vessel.Cutter head 1 also and diameter be that the feed pipe 5 of 2mm is communicated with, regulate button 8 by current and control, during use, open current and regulate button 8, current flow into operating field by feed pipe 5 along cutter head 1, and cutter head 1 is immersed in the liquid, thereby make local cooling and can not form eschar.The internal diameter of feed pipe 5 is controlled at 2-4 millimeters, and the too small meeting of internal diameter causes the too small cooling effect that do not have of current, and the excessive cutter hub volume of then performing the operation of internal diameter strengthens, and makes the cutter hub heaviness, increase manufacturing cost, and current is wayward.

As shown in Figure 1, rotary joint 3, connect lead 4, feed pipe 5, power pull bar 6, circuit board 9 and folder and close handle 11 and be arranged in the shell that knife bar 2 constitutes, make whole fork-shaped RF liver exsector compact conformation.Certainly, in fact not only be confined to be arranged in the shell, can also be arranged on the knife bar by other form in the practice.The main action button 7 and current adjusting button 8 are arranged on the shell of knife bar 2 formations, and it is more convenient to operate.Rotary joint 3 and handle joint 10 are fixedly mounted on knife bar 2 inside and close handle 11 with cutter head 1, folder respectively and carry out the hinge type flexible connection, certainly, rotary joint 3 also can be installed in knife bar 2 inside and close handle 11 with cutter head 1, folder respectively with handle joint 10 with hinge type fixedlys connected, and plays same effect.

Shown in accompanying drawing 1, accompanying drawing 2, cutter head 1 be metal hollow cylindrical band side opening can closed three fork-shaped passivity cutter heads, cutter head 1 comprises pocket knife I 12, pocket knife II 13 and pocket knife III14, three pocket knives of normality are by spring 15 control flare up fork-shapeds.Pocket knife III14 is fixedlyed connected with rotary joint 3, and pocket knife I 12 is connected with rotary joint 3 hinges with pocket knife II 13.Cutter head 1 is installed on the shell knife bar 2 by rotary joint 3,3 hinged pocket knife I 12 are connected with power pull bar 6 with pocket knife II 13 with rotary joint, being arranged on handle joint 10 and folder on the shell knife bar 2 closes handle 11 and carries out hinge type and be connected, folder closes handle 11 and is connected with power pull bar 6, folder closes handle 11 pulling power pull bars 6, power pull bar 6 pulling pocket knife I 12 and pocket knife II 13 make pocket knife I12 and pocket knife II 13 with respect to pocket knife III14 closure.During use, cutter head 1 is inserted in the liver organization that needs cutting, closing handle 11 and spring 15 by folder, to control the pocket knife I 12 of cutter head 1 relative with pocket knife III14 with pocket knife II 13 closed or open, close three fork-shaped cutter heads 1 by handle joint 10, power pull bar 6 and rotary joint 3 folders when clutching folder when closing handle 11, cutter head 1 passivity folder can cut the hepatic tissue that has been cured when closing.Need also aim at by cutting part because cutter head has pointed to, so cutting process closes handle 11 controls by folder, thereby eliminate the inertia that cutting process produces, tissue that reservation need not be cut and bigger blood vessel are so that the ligation cut-out.Therefore, use forked RF liver exsector of the present invention undergo surgery cutting relatively accurately, quick, safety.Certainly, three small bit tools on the cutter head 1 can any one be fixedly mounted on the rotary joint 3, or all are installed on the rotary joint 3 with the form of hinge, can both play aforesaid cutting effect.The material of cutter head can also be taked other other material that can meet the demands with electric conductivity value in the practice on intensity.

Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.

In the practice in making the process of forked RF liver exsector; the making shape of passivity cutter head can also be taked other passivity shapes; the any position at cutter head can be opened in hole on the cutter head; the setting of described lead, circuit board, power pull bar, water supply line and all control knob also has other modes; certainly, all fall within protection scope of the present invention.

Claims

1. forked RF liver exsector, comprise cutter head (1), knife bar (2), connection lead (4) and the main action button (7), feed pipe (5) and current adjusting button (8), circuit board (9), described cutter head (1) is connected with high frequency electric source by connection lead (4), the main action button (7), circuit board (9); Described cutter head (1) and feed pipe (5), current are regulated button (8) and are communicated with, it is characterized in that: described forked RF liver exsector also includes rotary joint (3), power pull bar (6), handle joint (10) and folder and closes handle (11), what the hollow that described cutter head (1) is made for conductive material was with holes can closed three fork-shaped passivity cutter heads, cutter head (1) carries out hinge with rotary joint (3) on being arranged on knife bar (2) and is connected, and by power pull bar (6), be arranged on handle joint (10) on the knife bar (2) and close handle (11) with folder and be connected.

2. forked RF liver exsector according to claim 1, it is characterized in that: described cutter head (1) comprises pocket knife I (12), pocket knife II (13) and pocket knife III (14), described pocket knife III (14) is fixedlyed connected with rotary joint (3), and pocket knife I (12), pocket knife II (13) are connected with rotary joint (3) hinge.

3. forked RF liver exsector according to claim 1 and 2 is characterized in that: described cutter head (1) is the cylinder shape belt side opening.

4. forked RF liver exsector according to claim 1 and 2 is characterized in that: described feed pipe (5) internal diameter is the 2-4 millimeter.

5. forked RF liver exsector according to claim 3 is characterized in that: described feed pipe (5) internal diameter is the 2-4 millimeter.

6. forked RF liver exsector according to claim 1 and 2 is characterized in that: described rotary joint (3), feed pipe (5), power pull bar (6) and handle joint (10) are arranged in the shell of knife bar (2) formation.

7. forked RF liver exsector according to claim 3 is characterized in that: described rotary joint (3), feed pipe (5), power pull bar (6) and handle joint (10) are arranged in the shell of knife bar (2) formation.

8. forked RF liver exsector according to claim 4 is characterized in that: described rotary joint (3), feed pipe (5), power pull bar (6) and handle joint (10) are arranged in the shell of knife bar (2) formation.

9. forked RF liver exsector according to claim 6, described the main action button (7), current are regulated button (8) and are arranged on the knife bar (2).

10. forked RF liver exsector according to claim 1 and 2, described cutter head (1) is that conducting metal is made.