CN101081175A

CN101081175A - Combination type electric cutting knife of prostate

Info

Publication number: CN101081175A
Application number: CN 200710099535
Authority: CN
Inventors: 王璠
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-05-24
Filing date: 2007-05-24
Publication date: 2007-12-05

Abstract

The present invention relates to medical equipment, and is especially one kind of combined electric knife for prostate. The combined electric knife is superior to available one, which consists of one knife bar, one knife head and one knife, and has two knifes, including one arc linear knife with excellent cutting performance and one plate vaporizing knife with excellent vaporizing performance. The combined electric knife has raised performance, and capacity of facilitating surgical operation and raising operation quality.

Description

Combination type electric cutting knife of prostate

Affiliated technical field

The present invention is a kind of medical apparatus and instruments, promptly a kind of combination type electric cutting knife of prostate.

Background technology

Per urethra carries out the hyperplastic prostate tissue electrotomy, be an application for many years, the Minimally Invasive Surgery that universal face is very wide.The apparatus that this operation is used is an electric cutting knife of prostate, also claims resectoscope.Except the complicated electrical apparatus control equipment of a cover was arranged, its functional unit mainly was made of cutter head, the cutting knife of an elongated knife bar and front.During work, this electric knife enters prostate through endoscope from urethra, and endoscope is reflected to image in the gland on the display of operating room, and the doctor diagnoses according to image and performs the operation.Its operation method is, makes cutting knife and the tissue that contacted heats up by high frequency electric, utilizes high temperature that intraprostatic hyperplastic tissue is cut down.The cutting knife of Ying Yonging is Semicircular TURP button loop the earliest, outgrowth tissue is cut down pour bladder, and the reuse emptying device washes repeatedly, and the fragment in the bladder is all discharged.The advantage of this mode is that cutting performance is good, rapid operation, and facet is smooth.Shortcoming is: hemorrhage more, cutting-out organized processing difficulty is big.Afterwards, people were made cutting knife into cylindric, had increased the contact surface of cutting knife and tissue, cutting knife disappears hyperplastic tissue's heating vaporization in the gland between advancing, reduce the number of times of per urethram sending into apparatus, alleviated patient's misery and wound, also had good coagulation function simultaneously.Shortcoming is be difficult to grasp, and wound surface is out-of-flatness also, and solidification layer is darker, and the relatively effort of cutting once more and vaporize has all improved the difficulty of operation from another point of view.For this reason, people have invented the cutting knife of shovel shape again, the existing thin blade that is suitable for cutting of this cutting knife, generouser blade is arranged again, blade face is provided with many grooves, and when high frequency electric passed through, the groove both sides became highly dense high frequency electric zonation, thereby effective aggregates power, make the vaporization that heats up rapidly of the tissue of contact.This can the cutting, the cutting knife that can vaporize for operation has brought convenience, becomes present state-of-the-art cutting knife again., the cutting performance of this shovel shape cutting knife is far below the cutting knife of arc shaped, and its vaporization performance is also not as cylindric cutting knife.Its reason is that the cutting knife of arc shaped is thinner, and quality is less, and is bigger to the pressure of tissue, and shovel shape cutting knife quality is bigger, and its blade again can not be too thin, must be blunt sword, otherwise can damage urethra, thereby pressure is less, so cutting performance is relatively poor.Simultaneously, we are also noted that, the cutting and two processes of vaporizing are very inconsistent to the cutting knife performance requirement, vaporization requires cutting knife to have bigger quality, blade has approached very much not all right, cutting then requires the quality of cutting knife the smaller the better, and this has just formed a pair of insoluble contradiction, and single cutting knife is difficult to adapt to such requirement.

Summary of the invention

The purpose of this invention is to provide a kind of existing cutting performance preferably, the performance of vaporizing is preferably arranged again, be convenient to operation, surgical effect is electric cutting knife of prostate preferably.

Above-mentioned purpose is realized by following technical scheme: develop a kind of combination type electric cutting knife of prostate, mainly be to constitute by knife bar, cutter head and cutting knife, be characterized in: said cutting knife has two at least, one is the thin-line-shaped cutter of arc, another is plate-like vaporization cutter, and cutter and vaporization cutter are contained on the cutter head side by side.

The wire diameter of said cutter is 0.2-0.4mm.

Said vaporization cutter is the shovel shape, and thickness is greater than 0.6mm.

Said vaporization cutter is cylindric, and diameter is greater than 1mm.

Said vaporization cutter is the roller shape, and the wheel footpath is greater than 1mm.

Said cutter are contained in the back of vaporization cutter, i.e. knife bar one side, with the distance of vaporization cutter greater than 1mm.

Said cutter are contained in the front of vaporization cutter.

Said cutter are connected respectively at two different high frequency electric sources with the vaporization cutter.

Adopt the combination type electric cutting knife of prostate of technique scheme, both had cutting performance preferably, have the performance of vaporizing preferably again, the treatment of suitable especially prostatic hyperplasia, the Minimally Invasive Surgery that also can be used for bladder cancer can reduce the difficulty of operation significantly, improves the quality of operation.

Description of drawings

Fig. 1 is the front view of first kind of embodiment;

Fig. 2 is the vertical view of first kind of embodiment;

Fig. 3 is that the part of first kind of embodiment enlarges front view;

Fig. 4 is that the part of first kind of embodiment enlarges left view;

Fig. 5 is that the part of first kind of embodiment enlarges vertical view;

Fig. 6 is the front view of the parts cutter of first kind of embodiment;

Fig. 7 is the left view of the parts cutter of first kind of embodiment;

Fig. 8 is the vertical view of the parts cutter of first kind of embodiment;

Fig. 9 is the front view of the parts cutter of first kind of embodiment;

Figure 10 is the left view of the parts cutter of first kind of embodiment;

Figure 11 is the vertical view of the parts cutter of first kind of embodiment;

Figure 12 is that the part of second kind of embodiment enlarges front view;

Figure 13 is that the part of the third embodiment enlarges front view;

Figure 14 is that the part of the 4th kind of embodiment enlarges front view;

Figure 15 is the partial isometric of first kind of embodiment;

Figure 16 is the axonometric drawing of first kind of embodiment.

Among the figure as seen: knife bar 1, cutter head 2, cutter 3, the vaporization cutter 4, sight glass pipe 5.

The specific embodiment

First kind of embodiment: as shown in Figure 1, 2, the operation principle of this electric cutting knife of prostate and corollary equipment and prior art are identical, related functional unit also is based on knife bar 1, cutter head 2, the end of knife bar 1 is one section joint that can be connected with power line, and the joint front is connected to conducting rod, and there is insulating barrier the conducting rod outside, there is one section metal tube the insulating barrier outside, sight glass pipe 5 is equipped with in the metal tube outside, and cutter head 2 is installed in knife bar 1 front, and the front end of cutter head 2 is equipped with cutting knife.Different is: have only a cutting knife on the cutter head of the electric cutting knife of prostate of present clinical use, and the cutting knife in the present embodiment has two.By Fig. 3,4,5 as seen: the cutting knife of front be vaporization cutter 4, the cutting knife of back is cutter 3, and the above distance of 1mm is arranged between the two.By Fig. 9,10,11 as seen: vaporization cutter 4 curved bent plate shapes.By Fig. 6,7,8 as seen: cutter 3 are circular-arc fine rules, and wire diameter is 0.2-0.4mm.During work, this electric knife is sent in the prostate together with various apparatuses such as sight glass and material per urethra, connect high frequency electric source, high frequency electric makes tissue produce heat by cutter 3, make and organize rapid cracking and separated, touch vaporization cutter 4 and being vaporized subsequently, the doctor can return the drop-down moving knife bar 1 of guidance of image at sight glass, excision and vaporization hyperplastic tissue.

Second kind of embodiment: as shown in figure 12, it is crooked cylindric that the vaporization cutter 4 of this electric knife is, and its section is circle or oval, and body diameter is greater than 1mm, equally with existing cutting knife above the cylinder is provided with many grooves.The calorific value of this cutting knife is high and stablize, and area coverage is bigger, and it is functional to vaporize.The back of vaporization cutter 4 is cutter 3 of arc shaped, and the lower edge of cutter 3 is lower than vaporization cutter 4 about 0.6mm.During work, cutter are cut off organizes and touches the vaporization cutter immediately and be heated vaporization.Because the cutting performance of cutter 3 is better, to operate more laborsavingly, tangent plane is more smooth.Because vaporescence carries out above facet, the facet solidification layer is very thin, is convenient to cut once more.Because the gap of vaporization cutter and facet is less, also can keep the effect of enough coagulations.Abundanter for blood vessel, hemorrhage more position, but the angle of appropriate change cutter head 2 make vaporization cutter 4 compress wound surface downwards and get final product.

The third embodiment: as shown in figure 13, the vaporization cutter 4 of this electric knife is crooked colyliform, and the wheel footpath is greater than 1mm, and the back is the cutter 3 of arc shaped, the lower edge of cutter is lower than vaporization cutter 0.8mm, during work, organizing that the cutter of front are cut off touches the vaporization cutter immediately, and is wrapped in wheel and goes up and be heated vaporization, the work surface of vaporization is bigger, it is functional to vaporize, and it is little also to have a walking resistance, characteristics such as easy to operate.

The 4th kind of embodiment: as shown in figure 14, the vaporization cutter 4 of this electric knife is crooked shovel shape, rear-inclined in face of the shovel, and preceding high back is low.The back is the cutter 3 of arc shaped, and the lower edge of cutter is lower than vaporization cutter 0.8mm.During work, the tissue that the cutter 3 of front are cut off is heated vaporization after touching the vaporization cutter in the process that upsweeps.

The 5th kind of embodiment: two cutting knifes are connected with different high frequency electric source line respectively, during work, can carry different electric currents as required respectively.By the heat effect characteristic of high frequency electric as can be known, indications such as the frequency of the cutting and the needed electric current of vaporizing and waveform are very different, adopt a lead to carry same electric current, often do not reach the operation performance of optimization, the control circuit of cutting and vaporization separately, perhaps adopt the existing electric control gear of two covers, control respectively, each takes what he needs, and the service behaviour of cutting knife is further improved.

The 6th kind of embodiment: the front and back position of two kinds of cutting knifes can be exchanged, i.e. cutter 3 pro-, vaporization cutter 4 after, also can reach same purpose.

The 7th kind of embodiment: the height and position of two kinds of cutting knifes is adjustable, i.e. cutter 3 and the adjustable gaps of vaporization between the cutter 4, thus satisfy different operator, the different needs of different surgical objects.

Claims

1. combination type electric cutting knife of prostate, mainly be to constitute by knife bar (1), cutter head (2) and cutting knife, it is characterized in that: said cutting knife has two at least, one is the thin-line-shaped cutter of arc (3), another is plate-like vaporization cutter (4), and cutter (2) and vaporization cutter (4) are contained on the cutter head (2) side by side.

2. combination type electric cutting knife of prostate according to claim 1 is characterized in that: the wire diameter of said formation cutter (3) is 0.2-0.4mm.

3. combination type electric cutting knife of prostate according to claim 1 is characterized in that: said vaporization cutter (4) is the shovel shape, and thickness is greater than 0.6mm.

4. combination type electric cutting knife of prostate according to claim 1 is characterized in that: said vaporization cutter (4) is cylindric, and body diameter is greater than 1mm.

5. combination type electric cutting knife of prostate according to claim 1 is characterized in that: said vaporization cutter (4) is the roller shape, and the wheel footpath is greater than 1mm.

6. combination type electric cutting knife of prostate according to claim 1 is characterized in that: said cutter (3) are contained in the back of vaporization cutter (4), i.e. knife bar (1) one side, with the distance of vaporization cutter (4) greater than 1mm.

7. combination type electric cutting knife of prostate according to claim 1 is characterized in that: said cutter (3) are contained in the front of vaporization cutter (4).

8. combination type electric cutting knife of prostate according to claim 1 is characterized in that: said cutter (3) are connected respectively at two different high frequency electric sources with vaporization cutter (4).