CN221490178U - External hemorrhoid operation assembly and instrument thereof - Google Patents

Abstract

The utility model belongs to the technical field of medical appliances, and relates to an external hemorrhoid surgical assembly and an external hemorrhoid surgical appliance, wherein the external hemorrhoid surgical assembly comprises a support piece and at least two electrodes which are arranged at the far end of the support piece in parallel, one electrode is used as a main electrode, and the other electrodes are used as auxiliary electrodes; the electrode comprises a first electrode and a second electrode which are sequentially sleeved along the direction of the rear end of the axis of the first electrode; the outer surface area of the second electrode is larger than that of the first electrode; the first electrode and the second electrode can be switched between a working electrode and a loop electrode, and at least two modes exist in the working state: a) Perforation mode: the electric polarities corresponding to the same parts of the electrodes are the same, and the first electrode is used as a working electrode to excite plasma; b) Coagulation mode: the corresponding electric polarities of the same parts of adjacent electrodes are opposite. The utility model solves the technical problem that the existing electrosurgical instrument for external hemorrhoid operation can not have the functions of perforation and coagulation.

Description

External hemorrhoid operation assembly and instrument thereof

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to an external hemorrhoid surgical assembly and an external hemorrhoid surgical appliance.

Background

Electrosurgical hemostatic instruments such as electroslag, electrocoagulation forceps, ultrasonic blades, electrocoagulation forceps, and the like are often used in surgical procedures. The current electrosurgical instruments on the market are generally used for surface hemostasis, have smaller hemostasis depth and hemostasis range, and have lower hemostasis efficiency when performing a large-scale cutting operation.

However, in the electrosurgical instrument, it is difficult to combine both the cutting/punching and coagulation functions. This is because of the following reasons: 1) The cutting effect is good, and sharp structures (such as thin and sharp) are needed, so that energy is concentrated, and the cutting can be well performed; 2) The coagulation effect is good and needs a rough and dull structure, and the coagulation effect is better as the contact area is larger by utilizing the thermal effect of current. Moreover, the conventional coagulation instruments at present adopt surface flat-leaning coagulation; for deep bleeding, the blood is mainly coagulated by penetrating from the surface to the deep by temperature, and the coagulation effect is limited.

In the patent with publication number CN107456272a, a plasma external hemorrhoid scalpel is disclosed, the electrode head of which is approximately V-shaped, and the problems are that: 1) In practical application, plasma can be excited only near the proximal end of the handle, and the V-shaped front end is not practical, but rather has the disadvantage of obstructing the operation process; 2) The product has the functions of perforation and coagulation or poor coagulation effect.

Disclosure of utility model

In view of the above, the present utility model aims to provide an external hemorrhoid surgical assembly and an apparatus thereof, so as to solve the technical problem that the existing external hemorrhoid surgical electrosurgical apparatus cannot have both punching and coagulation functions.

The technical scheme of the utility model is as follows:

an external hemorrhoid operation component comprises a support piece and at least two electrodes which are arranged at the distal end of the support piece in parallel, wherein one electrode is used as a main electrode, and the other electrodes are used as auxiliary electrodes; the electrode comprises a first electrode and a second electrode which are sequentially sleeved along the direction of the rear end of the axis of the first electrode; the outer surface area of the second electrode is larger than that of the first electrode; the first electrode and the second electrode can be switched between a working electrode and a loop electrode, and at least two modes exist in the working state:

a) Perforation mode: the electric polarities corresponding to the same parts of the electrodes are the same, and the first electrode is used as a working electrode to excite plasma;

b) Coagulation mode: the corresponding electric polarities of the same parts of adjacent electrodes are opposite.

Furthermore, be equipped with the outlet on the support piece, its purpose is in order to integrate annotating liquid function as an organic whole, avoids increasing apparatus and consuming the manual work.

Furthermore, the electrode I is an electrode wire or an electrode needle, which is beneficial to releasing plasma to puncture, punch and cut in a punching mode.

Furthermore, the second electrode is tubular, which is favorable for tissue surface coagulation under a flat leaning state.

Furthermore, the diameter of the second electrode is larger than that of the first electrode, so that tissue surface coagulation is facilitated in a flat leaning state.

Furthermore, the length of each electrode is the same, which is favorable for matching puncture and leaning coagulation.

Furthermore, an insulating layer II is arranged between the support piece and the electrode II (the insulating layer is exposed to the far end of the support piece and ensures enough exposed area of the electrode II), and one more layer of insulation is adopted, so that the energy is safer and can be concentrated at a required position.

Furthermore, the second electrode is a segmented structure formed by at least one insulating piece in a separated mode, and the purpose of the second electrode is to accurately perform hemostasis ablation in a segmented mode.

Further, the external hemorrhoid surgical assembly further comprises a telescopic control member, and the telescopic control member is connected with at least one auxiliary electrode. The electrode structure has the meaning that only at least one electrode is reserved and cannot stretch, so that punching, puncturing and cutting can be conveniently carried out in a narrow area.

Further, the external hemorrhoid operation assembly further comprises a telescopic control piece, wherein the telescopic control piece is at least connected with the first electrode of one auxiliary electrode and drives the first electrode of each auxiliary electrode to extend or retract the second electrode. The electrode structure has the meaning that only at least one electrode is reserved and cannot stretch, so that punching, puncturing and cutting can be conveniently carried out in a narrow area. The scheme has the advantages that only the far-end electrode I and the insulating layer wrapping the electrode I stretch, so that the stretch distance is shorter, and compared with the scheme of stretching the whole electrode, the effect is relatively worse.

The external hemorrhoid surgical instrument comprises a handle, wherein the proximal end of the handle is connected with a cable plug, and the external hemorrhoid surgical instrument further comprises an external hemorrhoid surgical assembly, and the external hemorrhoid surgical assembly is connected with the distal end of the handle through a support piece of the external hemorrhoid surgical assembly.

Further, the proximal end of the handle is connected with a liquid injection assembly, and the liquid injection assembly is communicated with the outflow port through a liquid injection pipe.

Compared with the prior art, the utility model has the beneficial effects that:

The utility model is mainly characterized in that the existing V-shaped electrode head is improved into at least two parallel independent electrodes, each electrode is separated into a first electrode and a second electrode which are provided with two poles through a first insulating layer, the first electrode and the second electrode can be switched between a working pole and a loop pole, each electrode can be independently perforated or coagulated, and each electrode can be mutually matched for perforation or coagulation, so that the technical problem that the existing external hemorrhoid surgical instrument can not have perforation and coagulation functions is solved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. The above and other objects, features and advantages of the present utility model will become more apparent from the accompanying drawings. Like reference numerals refer to like parts throughout the several views of the drawings. The drawings are not intended to be drawn to scale, with emphasis instead being placed upon illustrating the principles of the utility model.

FIG. 1 is a schematic overall outline structure of an embodiment;

FIG. 2 is a schematic diagram of an embodiment of an electrode operating state-a punching mode;

FIG. 3 is a schematic illustration of the operation of an electrode in one embodiment-coagulation mode;

FIG. 4 is a schematic view of an electrode structure according to another embodiment;

FIG. 5 is a schematic view of the overall configuration of a handle according to another embodiment;

Fig. 6 is a schematic structural view of an embodiment of a telescoping control.

Reference numerals:

1-supporting piece, 2-electrode, 3-telescopic control piece, 4-handle, 5-cable plug and 6-liquid injection component;

11-a flow outlet;

21-electrode one, 22-insulating layer one, 23 electrode two, 24-insulating layer two, 25-insulating member;

31-racks, 32-stop pushing pieces, 33-catch wheel sheets, 34-screws and 35-handle wheels;

61-liquid injection pipe.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Fluid: the utility model mainly refers to cooling mediums such as normal saline, low-temperature water, ice water and the like.

Proximal end: refers to the end facing away from the puncture direction.

Distal end: refers to one end of the puncturing direction.

Example 1

Referring to fig. 1-3, the external hemorrhoid surgical assembly provided by the utility model comprises a support member 1 and at least two electrodes 2 arranged at the far end of the support member 1 in parallel, wherein one electrode 2 is used as a main electrode, and the other electrodes 2 are used as auxiliary electrodes; in general, the external hemorrhoid operation does not need excessive electrode quantity, and 2 electrodes 2 are preferable; the length and the size of the electrode 2 are the same, the electrode 2 comprises an electrode I21, and an insulating layer I22 and an electrode II 23 which are sleeved in sequence along the axial rear end direction of the electrode I21; the outer surface area of the second electrode 23 is larger than the outer surface area of the first electrode 21; the first electrode 21 and the second electrode 23 can be switched between a working electrode and a loop electrode, and at least two modes exist in the working state:

a) Perforation mode: referring to fig. 2, the same parts of the electrodes 2 have the same corresponding electric polarities, and the electrode one 21 is used as a working electrode to excite plasma (when the target tissue of the human body does not have enough electrolyte solution as physiological saline environment to excite plasma, the physiological saline needs to be externally connected); preferably, the first electrode 21 has a tip;

b) Coagulation mode: referring to fig. 3, the same portions of adjacent electrodes 2 have opposite electric polarities.

Note that: the host outputs alternating current, so the polarity of the first electrode 21 and the second electrode 23 is continuously changed, but the polarities are always opposite. However, to embody the therapeutic application portion of the instrument, the polarity of the electrode 2 is artificially divided into "working poles" and "return poles".

Specifically, the first electrode 21 is a wire electrode or a needle electrode.

The second electrode 23 is tubular, such as a steel tube heat shrink tube.

The diameter of the second electrode 23 is larger than the diameter of the first electrode 21.

Each of the electrodes 2 is the same length.

An insulating layer two 24 (a heat shrink tube can be adopted, and the insulating layer two 24 is exposed to the distal end of the support member 1 and ensures a sufficient exposed area of the electrode two 23) is arranged between the support member 1 and the electrode two 23.

The second electrode 23 is fixed in the support member 1 by gluing after wrapping the second insulating layer 24.

Example 2

The main difference between this embodiment and the above-described embodiment is that:

With reference to fig. 2, the support 1 according to the utility model is provided with a spout 11. The outflow openings 11 are arranged in the center of each electrode 2, which is advantageous for the fluid to be sprayed onto the electrodes 2.

The utility model also provides an external hemorrhoid surgical instrument, which comprises a handle 4, wherein the proximal end of the handle 4 is connected with a cable plug 5, and the external hemorrhoid surgical assembly is connected with the distal end of the handle 4 through a support piece 1 of the external hemorrhoid surgical assembly.

The proximal end of the handle 4 is connected with a liquid injection assembly 6, and the liquid injection assembly 6 is communicated with the outflow port 11 through a liquid injection pipe 61.

Example 3

The main difference between this embodiment and the above-described embodiment is that:

Referring to fig. 5 to 6, the present utility model further includes a telescopic control member 3, where the telescopic control member 3 is connected to at least one of the auxiliary electrodes, that is, in order to control the punching precision, the number of the auxiliary electrodes that can be telescopic can be set according to the user requirement, for example, the fewer controllable auxiliary electrodes, the higher the punching precision. At this time, the electrode 2 having the expansion function is inserted through the connection with the support member 1, and is not fixed to the support member 1 by means of glue application or the like. In order to prevent sewage from flowing back, a backflow baffle plate can be additionally arranged at the fixed position of the original support piece 1 and the electrode 2.

The telescopic control 3 is arranged on the handle 4. The telescopic control member 3 includes a rack 31, a stop pusher 32, a catch wheel 33, a screw 34 and a handle wheel 35. Wherein, the rack 31 is fixed with the proximal end of the electrode II 23 (the proximal end is wrapped with the insulating layer II 24), and the baffle wheel piece 33, the proximal end of the electrode II 23 and the rack are arranged inside the handle 4. The handle wheel 35 is fixed on the handle 4 by a pin and can rotate freely. The handle wheel 35 is meshed with the rack 31, and the handle wheel 35 can drive the rack 31 to slide when rotating, so as to drive the electrode 2 fixed with the rack 31 to stretch (namely, the electrode 2 needing stretching is fixed on the rack 31). The catch wheel 33 is fixed in the handle 4 together with the stop pusher 32 by means of a screw 34, and the pushing surface of the stop pusher 32 is exposed outside the handle 4. The catch wheel 33 is a metal spring, and one end of the catch wheel 33 is a free end, and the free end is clamped into the handle wheel 35 for limiting. Since this structure is relatively easy to implement and has a variety of structures, a person skilled in the art can implement it without the inventive effort by means of such simple illustrations, and therefore the structure of the telescopic control 3 is not described.

In another case the following may be used:

The telescopic control member 3 is connected with at least one electrode one 21 of the auxiliary electrodes, drives the electrode one 21 of each auxiliary electrode to extend or retract into the electrode two 23, and is not connected with at least one insulating layer one 22 of the electrode 2. This solution, unlike the above-described one, has only a slightly different effect, and can be implemented by a person skilled in the art without the need for creative efforts by means of such simple illustrations, and therefore the structure of the telescopic control 3 is not described.

Example 4

The main difference between this embodiment and the above-described embodiment is that:

referring to fig. 4, the second electrode 23 is a segmented structure separated by at least one insulator 25. The insulating member 25 may be made of plastic or other insulating materials. The second electrode 23 of each segment is flush with the outer surface of the insulating member 25 and can be connected to the cable plug 5 by a wire. The advantage is that the single electrode 2 can be used as a single pole, and the single pole effect of the single electrode 2 can be further developed to have the effect that the single electrode presents a plurality of poles, so that the functions of the electrode 2 are enriched. Namely, the segmented coagulation ablation can be realized by adopting one electrode needle. The insulating member 25 may be made of plastic or other insulating materials.

The number of insulators 25 may be 1, 2, 3, 4, 5, etc., depending on the overall length of the corresponding lower electrode two 23, the length of each minor segment. It is always necessary to keep the outer surface area of the electrode two 23 of each segment after segmentation greater than the outer surface area of the electrode one 21 to ensure a more stable plasma excitation.

Conventional coagulation instruments have a small coagulation area and are difficult to coagulate rapidly in emergency situations. The utility model can control the electrode 2 to present different polarities, namely each section of the electrode one 21 and the electrode two 23 can be used as a working electrode ("+") or a loop electrode ("-"), if the electrode one 21 is a working electrode, each section of the electrode two 23 which is adjacent to the electrode one 21 in sequence is a loop electrode-working electrode-loop electrode … … which is arranged at intervals in sequence, and the single electrode 2 can realize large-scale 'surface coagulation' and 'insertion coagulation' of target tissues and can accurately realize segmented coagulation. How the polarity of the electrode 2 is controlled depends on the control of the relay by the host. It can be simply understood that after the two modes are set, the host controls the on-off of the relay according to the selected working mode, so that the polarity switching of the electrode 2 can be realized. If a perforation mode is required, it is only controlled by a foot switch or a manual button on the handle 4. This part of the circuit or programming belongs to the technology known to those skilled in the art, and will not be described in detail.

The current has a characteristic, and a path with smaller impedance is always selected. Because the inside of the tissue has the conditions of blood vessels, uneven density, sticking knives and the like, the impedance of the tissue is also different, so that current always flows in a certain area; so that in the case of large-area coagulation, there is always a coagulation difference: i.e., a portion of the blood is sufficiently coagulated and another portion still does not achieve the blood coagulation effect, which may be due to sticking of a knife or other factors. The utility model is improved to the sectional electrode 2, and the host can identify the impedance (R=U/I) of different areas so as to judge the coagulation effect of the different areas. The host computer then controls the on-off of the electrodes 2 (including the electrode one 21) at different sections so as to realize regional accurate coagulation.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. An external hemorrhoid surgical assembly is characterized by comprising a support (1) and at least two electrodes (2) arranged at the far end of the support (1) in parallel, wherein one electrode (2) is used as a main electrode, and the other electrodes (2) are used as auxiliary electrodes; the electrode (2) comprises an electrode I (21), and an insulating layer I (22) and an electrode II (23) which are sleeved in sequence along the axial rear end direction of the electrode I (21); the outer surface area of the electrode two (23) is larger than the outer surface area of the electrode one (21); the first electrode (21) and the second electrode (23) can be switched between a working electrode and a loop electrode, and at least two modes exist in the working state:

a) Perforation mode: the corresponding electric polarities of the same parts of the electrodes (2) are the same, and the electrode I (21) is used as a working electrode to excite plasma;

b) Coagulation mode: the corresponding electric polarities of the same parts of the adjacent electrodes (2) are opposite.

2. External hemorrhoid surgical assembly according to claim 1, characterized in that the support (1) is provided with an outflow opening (11).

3. An external hemorrhoid surgical assembly according to claim 1, wherein the electrode one (21) is a wire electrode or a needle electrode.

4. An external hemorrhoid surgical assembly according to claim 1, wherein said second electrode (23) is tubular.

5. An external hemorrhoid surgical assembly according to claim 1, wherein each of said electrodes (2) is of the same length.

6. The external hemorrhoid surgical assembly according to claim 1, wherein an insulating layer two (24) is provided between the support (1) and the electrode two (23).

7. An external hemorrhoid surgical assembly according to claim 1, wherein said second electrode (23) is of a segmented construction separated by at least one insulator (25).

8. The external hemorrhoid surgical assembly according to any one of claims 1 to 7, further comprising a telescoping control member (3), wherein the telescoping control member (3) is connected to at least one of the auxiliary electrodes.

9. The external hemorrhoid surgical assembly according to any one of claims 1 to 7, further comprising a telescopic control member (3), wherein the telescopic control member (3) is connected to at least one electrode one (21) of the auxiliary electrodes, and drives the electrode one (21) of each auxiliary electrode to extend or retract into the electrode two (23).

10. External hemorrhoid surgical instrument comprising a handle (4), the proximal end of the handle (4) being connected with a cable plug (5), characterized in that it further comprises an external hemorrhoid surgical assembly according to any one of claims 1 to 9, said external hemorrhoid surgical assembly being connected to the distal end of the handle (4) by means of its support (1).