CN217772497U

CN217772497U - Smoking retractable ablation electrode

Info

Publication number: CN217772497U
Application number: CN202220654691.7U
Authority: CN
Inventors: 孙梦园; 张婵娟
Original assignee: Zhejiang Curaway Medical Technology Co ltd
Current assignee: Zhejiang Curaway Medical Technology Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-11-11
Anticipated expiration: 2032-03-24

Abstract

The utility model relates to an ablation electrode technical field, in particular to a smoke-absorbing telescopic ablation electrode, which comprises a handle, a conductive pipe fitting, a smoke-absorbing pipe and an electrode tool bit arranged on the conductive pipe fitting, wherein the conductive pipe fitting is of a telescopic structure and is arranged on the handle along the axial direction of the handle, and the conductive pipe fitting comprises a positioning section and a suspension section; the positioning section is positioned in the handle, and the suspension section is positioned at the front side of the positioning section and suspended in the handle; the smoking pipe is movably arranged on the handle in the axial direction of the handle in a penetrating way, one end of the smoking pipe is positioned in the handle, and the other end of the smoking pipe extends out of the front end of the handle; the smoke absorbing pipe is sleeved outside the suspension section in a penetrating mode and can slide relative to the suspension section in the axial direction, and a gap for smoke to flow is formed between the smoke absorbing pipe and the suspension section. The utility model discloses well smoking pipe is independent of conductive tube spare and stretches out and draws back.

Description

Smoking retractable ablation electrode

Technical Field

The utility model relates to an ablation electrode technical field, concretely relates to smoking retractable ablation electrode.

Background

Ablation electrodes are widely used in various surgical procedures to assist medical personnel in quickly completing the cutting or coagulation of tissue by cutting or electrocoagulation. The ablation electrode can produce a large amount of toxic smog because of the heat effect in the operation process, not only influences the operation visual field of doctors but also influences the health of medical personnel, therefore, some existing ablation electrodes can be provided with smoke absorbing pipes to absorb smog.

The existing ablation electrodes mainly comprise two types, namely a fixed electrode and a telescopic electrode, wherein in the existing telescopic ablation electrode provided with a smoke suction pipe, the smoke suction pipe is combined with a telescopic part in the ablation electrode, so that when the ablation electrode is telescopic, the smoke suction pipe is driven to be synchronously telescopic, and the smoke suction pipe cannot be independently telescopic, so that the use has certain limitation, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one technical problem mentioned in the background art, the utility model aims to provide a smoking retractable ablation electrode.

In order to achieve the above object, the utility model provides a following technical scheme:

a smoking telescopic ablation electrode comprises a handle, a conductive pipe fitting, a smoking pipe and an electrode tool bit arranged on the conductive pipe fitting, wherein the conductive pipe fitting is of a telescopic structure and is arranged on the handle along the axial direction of the handle, and the conductive pipe fitting comprises a positioning section and a suspension section; the positioning section is positioned in the handle, and the suspension section is positioned at the front side of the positioning section and suspended in the handle; the smoking pipe is movably arranged on the handle in a penetrating way along the axial direction of the handle, one end of the smoking pipe is positioned in the handle, and the other end of the smoking pipe extends out of the front end of the handle; the smoke suction pipe is sleeved outside the suspension section in a penetrating mode and can slide relative to the suspension section in the axial direction, and a gap for smoke circulation is formed between the smoke suction pipe and the suspension section in a gap arrangement mode.

Compare prior art, the advantage of this scheme of adoption lies in:

in the scheme, the conductive pipe fitting is set into the positioning section and the suspension section, and is fixedly positioned in the handle through the positioning section, so that the suspension section is suspended in the handle, and the conductive pipe fitting is fixed with the handle only at the positioning section, while the suspension section is suspended in the handle, so that the fume suction pipe can be directly sleeved on the suspension section and can move relative to the suspension section along the axial direction of the suspension section; in other words, because the suspension section is the suspension in the handle, so when the smoking pipe wears to overlap on the suspension section, the suspension section can not lead to the fact the interference to the normal flexible of electrically conductive pipe fitting, guarantees that electrically conductive pipe fitting and smoking pipe can relative slip, and then makes the smoking pipe can stretch out and draw back alone, and electrically conductive pipe fitting also can stretch out and draw back alone to can better adapt to the operation requirement.

Preferably, the positioning section is supported and positioned by the rib plate component in the handle.

Preferably, the rib plate assembly at least comprises two rib plates distributed along the axial direction of the handle.

Preferably, a limiting block is arranged on the positioning section; at least one rib plate is provided with a limiting groove for the limiting block to be clamped in; the limiting block is positioned in the limiting groove in the axial direction.

Preferably, the outer side wall of the tail end of the smoking pipe is provided with a sliding block, the inner wall of the handle is provided with a sliding groove extending along the axial direction of the handle, and the sliding block is arranged in the sliding groove in a sliding manner.

Preferably, a plurality of convex ribs which are abutted against the outer wall of the suspension section are arranged on the inner wall of the smoke absorbing pipe; and/or a clamping rib which is abutted against the outer wall of the smoking pipe is arranged inside the front end of the handle.

Preferably, still include smoke guide pipe and rotary joint, rotary joint locates the handle end, smoke guide pipe passes through rotary joint and the inside intercommunication of handle.

Preferably, the cable connector comprises a connecting pipe and flexible pipes inserted at two ends of the connecting pipe respectively, and a channel for the cable to pass through is arranged on the side wall of the connecting pipe.

Preferably, the conductive pipe fitting comprises a conductive track pipe and a telescopic pipe, the telescopic pipe is arranged in the track pipe and can axially extend and retract along the track pipe, and the electrode cutter head is arranged at the front end of the telescopic pipe; a damping member is arranged between the track pipe and the telescopic pipe, and the relative position of the track pipe and the telescopic pipe is positioned through damping force provided by the damping member; the positioning section and the suspension section are formed on the track pipe.

Preferably, the telescopic pipe is fixedly sleeved with an insulating sleeve for coating the outer wall of the telescopic pipe; the damping component comprises a drum spring and a crown spring, and the drum spring is fixedly sleeved on the outer wall of the telescopic pipe in a penetrating manner and is abutted against the inner wall of the track pipe; the crown spring is fixedly arranged in the track pipe and is abutted against the outer wall of the insulating sleeve

Other advantages and effects of the present invention are specifically described in the detailed description of the invention.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

fig. 3 is a cross-sectional view of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is an enlarged view of portion B of FIG. 3;

FIG. 6 is a schematic view of the structure of the conductive tube in the handle (without the fume tube inserted therein);

FIG. 7 is a schematic view of the structure of the conductive tube inside the handle (after the smoke tube is inserted therein);

FIG. 8 is a schematic structural view of a smoke absorption tube and a conductive pipe;

fig. 9 is a sectional view of the adapter tube.

Detailed Description

The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-9, the present embodiment provides a telescopic ablation electrode for smoking, which includes a handle 1, a conductive pipe, a smoking pipe 4, and an electrode head 2 mounted on the conductive pipe, wherein the conductive pipe is of a telescopic structure and is axially disposed on the handle 1, the electrode head 2 is mounted at the front end of the conductive pipe, and the extension position of the electrode head 2 is adjusted by the extension and retraction of the conductive pipe, so as to adapt to operations at different depths.

As shown in figure 2, the handle 1 is mainly formed by surrounding an upper shell 11 and a lower shell 12, the surface of the electrode cutter head 2 is coated with a non-stick coating, the non-stick coating can be made of an elastic silicon coating, a polytetrafluoroethylene coating, a ceramic coating or the like, and the electrode cutter head 2 with the non-stick coating can effectively reduce tissue adhesion, reduce operation time and improve operation efficiency.

As shown in fig. 6, the conductive pipe includes a positioning section 311 and a suspending section 312; the positioning section 311 is positioned in the handle 1, and the suspension section 312 is positioned at the front side of the positioning section 311 and is suspended in the handle 1, where suspension means that the suspension section 312 is not connected with the handle 1, but is directly suspended in the handle 1; in other words, the conductive pipe is fixed to the handle 1 only at the positioning section 311, so that the suspension section 312 is suspended in the handle 1 for the smoke tube 4 to penetrate through, because the smoke tube 4 can penetrate into only when the suspension section 312 is suspended in the handle 1, otherwise, if the suspension section 312 is not suspended, for example, if a component connected to the handle 1 is disposed in the suspension section 312, the component can hinder the smoke tube 4 from extending and retracting.

In this embodiment, the smoking pipe 4 is movably inserted through the handle 1 along the axial direction of the handle 1, one end of the smoking pipe 4 is located in the handle 1, and the other end of the smoking pipe 4 extends out from the front end of the handle 1, as shown in fig. 7 and 8 \22014g, so that the smoking pipe 4 is inserted outside the suspension section 312 and can slide relative to the suspension section 312 along the axial direction, so that the conductive pipe can perform a telescopic action in the smoking pipe 4, and the smoking pipe 4 can also perform independent telescopic action relative to the conductive pipe, where the telescopic action of the smoking pipe 4 means that the smoking pipe 4 extends out or retracts out from the handle 1.

A gap for smoke circulation is formed between the smoke absorbing pipe 4 and the suspension section 312.

In this embodiment, the concrete structure of electrically conductive pipe fitting is:

as shown in fig. 2-5, the conductive pipe includes a conductive track pipe 31 and an extension pipe 32, the extension pipe 32 is disposed in the track pipe 31 and can axially extend and retract along the track pipe 31, and the electrode head 2 is disposed at the front end of the extension pipe 32; the track pipe 31 is fixedly assembled in the handle 1 along the axial direction of the handle 1, the extension pipe 32 movably penetrates out from the front end of the handle 1, and the extension pipe 32 and the track pipe 31 are integrally sleeved in the smoking pipe 4.

It should be noted that the conductive pipe fitting and the handle 1 are fixed mainly by means of the track pipe 31, as shown in fig. 6, the track pipe 31 is formed with the positioning section 311 and the suspending section 312, that is, the end portion of the track pipe 31 is fixed in the handle 1 as the positioning section 311, and the front portion of the track pipe 31 is suspended in the handle 1 as the suspending section 312 for the smoke absorbing pipe 4 to pass through.

In order to ensure that the current can be normally guided to the electrode bit 2, in this embodiment, the track tube 31 and the extension tube 32 are both conductive structures, for example, both adopt conductive metal tubes, and the two are electrically connected; the electrode head 2 is fixed at the front end of the extension tube 32 and electrically connected to the extension tube 32, for example, the electrode head 2 is welded at the front end of the extension tube 32, but in other embodiments, the electrode head 2 may be integrally formed with the extension tube 32 to form an integral structure.

A damping member is disposed between the track pipe 31 and the extension pipe 32, and the relative positions of the track pipe 31 and the extension pipe 32 are positioned by a damping force provided by the damping member.

In practical operation, after the extension tube 32 extends out from the track tube 31, a part of the tube wall is directly exposed at the front side of the handle 1, and after the power is turned on, the extension tube 32 is entirely electrified, so that once a person accidentally touches the extension tube 32, the risk of electric shock is easily caused, in this embodiment, as shown in fig. 4, an insulating sleeve 33 covering the outer wall of the extension tube 32 is fixedly sleeved on the extension tube 32, where the insulating sleeve 33 may be a heat shrinkable tube and is fixed outside the extension tube 32 by means of heat shrinkage. Therefore, the insulating sleeve 33 can extend and retract in the track pipe 31 along with the telescopic pipe 32, when the telescopic pipe 32 extends out of the handle 1, people cannot directly touch the telescopic pipe 32 due to the shielding of the insulating sleeve 33, and the danger of electric shock caused by touching the telescopic pipe 32 is avoided.

The specific structure of the damping member is that the damping member comprises a drum spring 35 and a crown spring 34, as shown in fig. 5, the drum spring 35 is fixedly sleeved on the outer wall of the extension tube 32 and is abutted against the inner wall of the track tube 31; as shown in fig. 4, the crown spring 34 is fixed in the rail pipe 31, and the insulating sleeve 33 is movably inserted through the crown spring 34, so that the crown spring 34 is in contact with the outer wall of the insulating sleeve 33.

Thus, under the contact between the drum spring 35 and the crown spring 34, a frictional damping force is formed, so that when the telescopic tube 32 and the track tube 31 are not extended, the telescopic tube 32 and the track tube 31 can be positioned relatively, and the relative extension and retraction can not easily occur, and when the telescopic tube 32 is extended and retracted, the telescopic tube 32 can be pulled to overcome the damping force to extend and retract relative to the track tube 31.

Because the drum spring 35 is fixed on the outer wall of the extension tube 32 and is abutted against the track tube 31, the drum spring 35 can also play a role of a bridge, so that the current on the track tube 31 can be transmitted to the extension tube 32 through the drum spring 35 and finally transmitted to the electrode cutter head 2 from the extension tube 32.

In addition, in this embodiment, the drum spring 35 and the crown spring 34 are provided to have a limit function, and the extension tube 32 and the track tube 31 are kept coaxial by the combined action of the drum spring and the crown spring.

In this embodiment, the crown spring 34 is welded inside the front end of the rail pipe 31, and the drum spring 35 is welded outside the end of the extension pipe 32, so that in the initial state (the state where the extension pipe 32 is completely retracted into the rail pipe 31), the axial distance between the crown spring 34 and the drum spring 35 is large, thereby allowing the extension pipe 32 to have a large extension stroke.

As shown in fig. 5, in order to ensure that the drum spring 35 can directly contact the extension tube 32, the end of the extension tube 32 in this embodiment extends axially from the end of the insulating sleeve 33 to form an exposed area, and the drum spring 35 is disposed on the exposed area to ensure that the drum spring 35 directly contacts the extension tube 32.

The specific fixing manner for the positioning segment 311 is as follows: the rib plate component in the handle 1 supports and positions the positioning section 311: the positioning section 311 (the end portion of the rail pipe 31)) is directly fixed on a rib plate assembly in the handle 1, and the whole conductive pipe is erected in the handle 1 through the rib plate assembly, so that the suspension section 312 is suspended in the handle 1.

The rib plate assembly at least comprises two rib plates 16 distributed along the axial direction of the handle 1, and because the conductive pipe fitting needs to be integrally supported, and the supporting and fixing effect of a single rib plate 16 is poor, in the embodiment, as shown in fig. 5 and 6, at least two rib plates 16 are arranged; in a specific embodiment, in this embodiment, the single rib 16 is composed of two separate halves, including an upper half and a lower half, the upper half of the rib 16 is located in the upper casing 11, the lower half is located in the lower casing 12, and when the upper casing 11 and the lower casing 12 are closed, the track pipe 31 is clamped between the upper half and the lower half of the rib 16.

In order to avoid the axial sliding of the track tube 31 along the handle 1, in this embodiment, as shown in fig. 5 to 7, a stop block 313 is arranged on the positioning section 311; a limiting groove 161 for the limiting block 313 to be clamped in is arranged on at least one rib plate 16; the stopper 313 is positioned in the stopper groove 161 in the axial direction; in this embodiment, the stopper 313 is welded and fixed to the end of the rail tube 31 and is clamped in the stopper groove 161, so that the rail tube 31 is kept in position in the axial direction, i.e. cannot move in the axial direction, under the action of the stopper groove 161.

In order to guide the extension and contraction of the smoking pipe 4, in this embodiment, as shown in fig. 6 to 8, two opposite sliding blocks 41 are disposed on the outer side wall of the end of the smoking pipe 4, two sliding grooves 14 extending along the axial direction of the handle 1 are disposed on the inner wall of the handle 1 corresponding to the two sliding blocks 41, the sliding blocks 41 are slidably disposed in the sliding grooves 14, and the smoking pipe 4 moves axially to drive the sliding blocks 41 to slide in the sliding grooves 14. It should be noted that the front slot wall and the rear slot wall of the sliding slot 14 can also limit the sliding block 41, so as to control the sliding stroke of the smoking pipe 4.

In order to position the smoke absorbing pipe 4, in the embodiment, as shown in fig. 8, a plurality of ribs 42 that contact with the outer wall of the suspending section 312 (i.e., the outer wall of the track pipe 31) are disposed on the inner wall of the smoke absorbing pipe 4; in this embodiment, the number of the ribs 42 is 3, the ribs are circumferentially distributed in the smoking pipe 4 in an array manner, the inner ends of the ribs 42 are abutted against the outer wall of the suspension section 312 of the rail pipe 31, and the smoking pipe 4 is positioned by the friction between the ribs 42 and the rail pipe 31, that is, after the smoking pipe 4 is completely stretched, the smoking pipe 4 cannot easily slide by the friction between the ribs 42 and the rail pipe 31.

Of course, the smoke suction tube 4 can also be positioned in the following way: as shown in fig. 4 and 7, a locking rib 17 that contacts the outer wall of the smoking pipe 4 is provided inside the front end of the handle 1, and the principle of positioning the smoking pipe 4 is substantially the same as the principle of positioning the protruding rib 42, that is, the friction between the locking rib 17 and the outer wall of the smoking pipe 4 is used to position the smoking pipe 4.

In order to finally lead out the smoke sucked by the smoking pipe 4, as shown in fig. 1 and 2, the embodiment further includes a smoke guiding pipe 6 and a rotary joint 5, the rotary joint 5 is disposed at the end of the handle 1, the smoke guiding pipe 6 is communicated with the inside of the handle 1 through the rotary joint 5, in the embodiment, as shown in fig. 6 and 7, the rotary joint 5 includes a ball 51, a spherical cavity 18 for the ball 51 to be installed is disposed at the end of the handle 1, and the ball 51 is disposed in the spherical cavity 18, so that the ball 51 rotates 360 ° around the axis of the spherical cavity 18.

As shown in fig. 2, the smoke guide pipe 6 includes a connecting pipe 61 and flexible pipes 62 respectively inserted into two ends of the connecting pipe 61, wherein the two flexible pipes 62 can be inserted into the connecting pipe 61 in an interference fit manner, the flexible pipes 62 can be corrugated pipes, and as shown in fig. 9, a channel 611 for passing a cable is provided on a side wall of the connecting pipe 61; in the assembled state, the cable of the ablation electrode sequentially passes through the ball 51 at the end of the handle 1 and the hose 62 at the upper part, enters the adapter tube 61, and finally is led out from the channel 611 of the adapter tube 61.

When the smoke sucking device is used, the end part of the smoke guide pipe 6 is connected to negative pressure equipment, smoke generated in an operation is sucked into the handle 1 through the smoke sucking pipe 4, then is guided into the smoke guide pipe 6 through the rotary joint 5, and finally is sucked away by the negative pressure equipment, so that the aim of smoking is fulfilled.

It can be understood that, like the existing ablation electrode, the present embodiment further includes a plug (not shown in the figure), an electrode PCB 13 and a control button 15, as shown in fig. 1, the electrode PCB 13 is disposed in the handle 1, and the control button 15 is disposed on the handle 1; when the multifunctional electrode knife head is used, a plug is connected with high-frequency equipment, the high-frequency equipment provides high-frequency current, when the control button 15 is pressed, the high-frequency current is transmitted to the electrode PCB 13, the high-frequency current is transmitted to the rail pipe 31 through the PCB, the rail pipe 31 transmits the high-frequency current to the telescopic pipe 32, finally the telescopic pipe 32 transmits the high-frequency current to the electrode knife head 2, and the electrified electrode knife head 2 can act on a human body to perform corresponding operation. When the control button 15 is reset, the high-frequency device stops supplying power to the electrode tip 2. The way of controlling the working state of the electrode tip 2 by using the control button 15 is described in a large number of publications in the prior art, and therefore, will not be described in detail herein.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides a smoking retractable ablation electrode, includes handle, electrically conductive pipe fitting, smoking pipe and installs the electrode tool bit on electrically conductive pipe fitting, and electrically conductive pipe fitting is extending structure, and its axial along the handle is located on the handle, its characterized in that: the conductive pipe fitting comprises a positioning section and a suspension section; the positioning section is positioned in the handle, and the suspension section is positioned at the front side of the positioning section and suspended in the handle; the smoking pipe is movably arranged on the handle in a penetrating way along the axial direction of the handle, one end of the smoking pipe is positioned in the handle, and the other end of the smoking pipe extends out of the front end of the handle; the smoke suction pipe is sleeved outside the suspension section in a penetrating mode and can slide relative to the suspension section in the axial direction, and a gap for smoke circulation is formed between the smoke suction pipe and the suspension section in a gap arrangement mode.

2. The telescopic ablation electrode for smoking according to claim 1, wherein a rib plate component is arranged in the handle, and the positioning section is supported and positioned by the rib plate component.

3. A smoking retractable ablation electrode according to claim 2, wherein the rib plate assembly comprises at least two rib plates axially distributed along the handle.

4. The smoking retractable ablation electrode according to claim 3, wherein the positioning section is provided with a limiting block; at least one rib plate is provided with a limiting groove for the limiting block to be clamped in; the limiting block is positioned in the limiting groove in the axial direction.

5. The telescopic ablation electrode for smoking according to claim 1, wherein the outer side wall of the end of the smoking pipe is provided with a sliding block, the inner wall of the handle is provided with a sliding groove extending along the axial direction of the handle, and the sliding block is slidably arranged in the sliding groove.

6. The telescopic ablation electrode for smoking according to claim 1, wherein a plurality of ribs which are abutted against the outer wall of the suspension section are arranged on the inner wall of the smoking pipe; and/or a clamping rib which is abutted against the outer wall of the smoking pipe is arranged inside the front end of the handle.

7. The telescopic ablation electrode for smoking according to claim 1, further comprising a smoke guiding tube and a rotary joint, wherein the rotary joint is arranged at the tail end of the handle, and the smoke guiding tube is communicated with the inside of the handle through the rotary joint.

8. The telescopic ablation electrode for smoking according to claim 7, wherein the smoke guiding tube comprises a connecting tube and flexible tubes respectively inserted at two ends of the connecting tube, and a channel for passing a cable is arranged on the side wall of the connecting tube.

9. The telescopic smoking ablation electrode according to claim 1, wherein the conductive pipe comprises a conductive track pipe and a telescopic pipe, the telescopic pipe is arranged in the track pipe and can axially extend and retract along the track pipe, and the electrode cutter head is arranged at the front end of the telescopic pipe; a damping member is arranged between the track pipe and the telescopic pipe, and the relative position of the track pipe and the telescopic pipe is positioned through damping force provided by the damping member; the positioning section and the suspension section are formed on the track pipe.

10. The telescopic ablation electrode for smoking according to claim 9, wherein the telescopic tube is fixedly sleeved with an insulating sleeve tube covering the outer wall of the telescopic tube; the damping component comprises a drum spring and a crown spring, and the drum spring is fixedly sleeved on the outer wall of the telescopic pipe in a penetrating manner and is abutted against the inner wall of the track pipe; and the crown spring is fixedly arranged in the track pipe and is abutted against the outer wall of the insulating sleeve.