CN217408957U - Ablation electrode with negative pressure suction function - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, in particular to an ablation electrode with a negative pressure suction function, which comprises a handle with a cavity, a tool bit and a tool tube, wherein the tool bit is connected and communicated with the cavity through the tool tube; the ablation electrode also comprises a negative pressure suction device, the negative pressure suction device comprises a flow channel and a trigger mechanism, the flow channel is communicated with the knife tube, and an elastic conduction piece is arranged in the flow channel in a sliding manner; one end of the trigger mechanism is abutted against the elastic conduction piece, and the other end of the trigger mechanism extends out of the handle. The utility model discloses convenient to use when realizing the electricity and surely, congealing the function, can also improve medical staff's negative pressure suction operating efficiency, reduces working strength.

Description

Ablation electrode with negative pressure suction function

Technical Field

The utility model relates to the technical field of medical equipment, more specifically relates to an ablation electrode with negative pressure suction function.

Background

The ablation electrode product is surgical equipment required to be used in a surgical operation, and mainly has the functions of cutting, stopping bleeding, flushing, negative pressure suction and the like of tissues in the operation.

The ablation electrode is widely applied to clinical abdominal cavity minimally invasive surgery at present. Because the minimally invasive surgery has a small wound, the functions of electrotomy, electric coagulation, negative pressure suction and the like for the operation in the abdominal cavity need to be realized, the operation difficulty is high, and different instruments are required for assistance. The functions can be realized only by replacing equipment in the using process of the instrument, and certain influence is caused on the operation difficulty.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide an ablation electrode with negative pressure attracts function, convenient to use when realizing the electricity and surely, congeal the function, can also improve medical staff's negative pressure and attract operating efficiency, reduces working strength.

In order to solve the technical problem, the utility model adopts the technical scheme that:

the ablation electrode with the negative pressure suction function comprises a handle with a cavity, a cutter head and a cutter tube, wherein the cutter head is connected and communicated with the cavity through the cutter tube, and the handle is provided with an electric cutting and electric coagulation device connected with the cutter tube; the ablation electrode also comprises a negative pressure suction device, the negative pressure suction device comprises a flow channel and a trigger mechanism, the flow channel is communicated with the knife tube, and an elastic conduction piece is arranged in the flow channel in a sliding manner; one end of the trigger mechanism is abutted against the elastic conduction piece, and the other end of the trigger mechanism extends out of the handle.

The utility model relates to an ablation electrode with negative pressure suction function, the arrangement of an electric excision electric coagulation mechanism enables the ablation electrode to realize the electric excision and electric coagulation functions; the flow passage is used for connecting the knife tube with the negative pressure suction tube; the elastic conduction piece is positioned in the flow channel, and medical staff can control the conduction of the elastic conduction piece through the trigger mechanism, so that the operation convenience is improved.

Preferably, the elastic conducting piece comprises a valve core and a first spring, and two ends of the first spring are respectively abutted against the inner wall of the flow passage and the valve core; and the valve core is abutted with the trigger mechanism.

Preferably, one surface of the valve core, which is in contact with the trigger mechanism, is an inclined surface.

Preferably, the valve core includes a first core and a second core connected to the first core; the second core body is abutted with the trigger mechanism, and two ends of the first spring are respectively abutted with the inner wall of the flow channel and the second core body; a first sealing ring is arranged between the first core body and the inner wall of the flow channel. The arrangement of the first sealing ring can improve the sealing performance between the elastic conduction piece and the flow channel in an uncompressed state.

Preferably, the valve spool includes a first core and a second core connected to the first core; the second core body is abutted with the trigger mechanism; the runner is internally connected with a check ring in a clamping manner, the first core body is sleeved with the first spring, and two ends of the first spring are respectively abutted against the second core body and the check ring. The setting of retaining ring can improve the sealing performance between the elastic conduction piece and the runner under the uncompressed state.

Preferably, the flow channel comprises a first valve sleeve and a second valve sleeve detachably connected with the first valve sleeve, the first valve sleeve is connected and communicated with the knife tube, and the second valve sleeve is used for carrying a negative pressure suction tube.

Preferably, the trigger mechanism comprises a trigger, a push rod; one end of the push rod extends into the flow channel and is abutted with the elastic conduction piece, and the other end of the push rod is abutted with the trigger; the trigger is movably connected with the handle.

Preferably, the electrocoagulation device comprises a control module, and a first trigger module and a second trigger module which are in communication connection with the control module, wherein the knife tube is connected with the control module through a conduction piece, and the first trigger module and the second trigger module extend out of the handle.

Preferably, the multifunctional knife comprises a handle, a knife tube and a rotating wheel, wherein the handle is connected with the knife tube, and the knife tube is connected with the rotating wheel in an inserting mode through a connecting piece.

Preferably, the cutting device further comprises a sleeve and a driving mechanism, the sleeve is slidably sleeved on the cutter tube, and the sleeve is connected with the driving mechanism through a connecting piece.

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

the utility model relates to an ablation electrode with negative pressure suction function, the arrangement of an electric excision electric coagulation mechanism enables the ablation electrode to realize the electric excision and electric coagulation functions; the flow passage is used for connecting the knife tube with the negative pressure suction tube; the elastic conduction piece is positioned in the flow channel, and medical staff can control whether the elastic conduction piece is conducted or not through the trigger mechanism, so that the operation convenience is improved.

Drawings

Fig. 1 is a schematic structural view of an ablation electrode with a negative pressure suction function according to the present invention.

Fig. 2 is a schematic structural view of the internal view angle of the ablation electrode with the vacuum suction function according to the present invention.

Fig. 3 is a schematic view of the internal structure of an ablation electrode with negative pressure suction function according to the present invention.

Fig. 4 is a schematic structural diagram of embodiment 1 of the valve element of the present invention.

Fig. 5 is a schematic structural diagram of the flow channel of the present invention.

Fig. 6 is a schematic structural diagram of the connecting member of the present invention.

Fig. 7 is a schematic structural view of an ablation electrode of embodiment 2 with negative pressure suction function according to the present invention.

The graphic symbols are as follows:

1-handle, 11-cavity, 2-cutter head, 3-cutter tube, 31-joint, 4-electric cutting electrocoagulation device, 41-control module, 42-first trigger module, 43-second trigger module, 44-conducting piece, 5-negative pressure suction device, 51-flow channel, 511-first valve sleeve, 5111-first body part, 5112-second body part, 5113-first plug-in tube, 5114-second plug-in tube, 512-second valve sleeve, 52-trigger mechanism, 521-trigger, 522-second spring, 523-push rod, 524-second sealing ring, 53-elastic conducting piece, 531-valve core, 5311-first core body, 5312-second core body, 532-groove, 533-first spring, 534-first sealing ring, 54-check ring, 6-rotating wheel, 7-sleeve, 71-third button, 8-connecting plug, 9-connecting piece, 91-first connecting piece and 92-second connecting piece.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Example 1

Fig. 1 to 6 show a first embodiment of an ablation electrode with negative pressure suction function according to the present invention, which includes a handle 1 having a cavity 11, a tool bit 2, and a knife tube 3, wherein the tool bit 2 is connected and communicated with the cavity 11 through the knife tube 3, and the handle 1 is provided with an electrotomy electrocoagulation device 4 connected with the knife tube 3; the ablation electrode further comprises a negative pressure suction device 5, the negative pressure suction device 5 comprises a flow channel 51 and a trigger mechanism 52, the flow channel 51 is communicated with the knife tube 3, and an elastic conduction piece 53 is arranged in the flow channel 51 in a sliding manner; one end of the trigger mechanism 52 is abutted against the elastic conduction piece 53, and the other end extends out of the handle 1.

The arrangement of the electric excision electric coagulation mechanism 4 enables the ablation electrode to realize the electric excision and electric coagulation functions; the flow passage 51 is used for connecting the knife tube 3 with a negative pressure suction tube; the elastic conduction piece 53 is positioned in the flow passage 51, and medical staff can control the conduction of the elastic conduction piece 53 through the trigger mechanism 52, so that the operation convenience is improved.

As shown in fig. 2, the flow passage 51 includes a first valve housing 511 and a second valve housing 512, one end of the first valve housing 511 is connected and communicated with the knife tube 3, the other end of the first valve housing 511 is connected with one end of the second valve housing 512 through a screw, and the other end of the first valve housing 511 extends out of the handle 1 and is used for externally connecting a negative pressure suction tube.

Specifically, as shown in fig. 5, the first valve housing 511 includes a first body portion 5111, a second body portion 5112, a first insertion tube 5113 for connecting with the knife tube 3, and a second insertion tube 5114 for connecting with the trigger mechanism 52. One end of the first body portion 5111 is connected and communicated with the first insertion pipe 5113, the other end of the first body portion 5111 is connected and communicated with one end of the second body portion 5112, and the other end of the second body portion 5112 is connected with the second valve sleeve 512 by a screw thread; the second inserting tube 5114 is inserted into and communicated with the second body portion 5112. The cross-sectional area of the first body portion 5111 is smaller than the cross-sectional area of the second body portion 5112 in this embodiment, such that there is a step between the first body portion 5111 and the second body portion 5112.

As shown in fig. 3, the elastic conductive member 53 includes a valve element 531 and a first spring 533, and both ends of the first spring 533 are respectively in contact with the inner wall of the flow passage 51 and the valve element 531; and the valve body 531 abuts on the trigger mechanism 52.

Specifically, as shown in fig. 4, the valve spool 531 includes a first core 5311 and a second core 5312, an upper end of the first core 5311 is fixedly connected to the second core 5312, and a lower end of the first core 5311 is provided with a groove 532. The cross-sectional area of the first core 5311 is smaller than the cross-sectional area of the second core 5312, so that a stepped position is provided between the first core 5311 and the second core 5312. The second core 5312 is inclined at an end thereof remote from the first core 5311 to form an inclined surface, and the inclined surface abuts against the trigger 52. The inclined surface in this embodiment is inclined upward from a side close to the trigger mechanism 52 to a side away from the trigger mechanism 52.

In addition, a retainer ring 54 is arranged in the flow passage 51, and the retainer ring 54 is clamped at the connection part of the first valve sleeve 511 and the second valve sleeve 512; the first core 5311 is slidably inserted into the retainer ring 54, the first spring 533 is sleeved on the first core 5311, one end of the first spring 533 abuts against the second core 5312, and the other end abuts against the retainer ring 54. The first seal ring 534 is mounted in the groove 532, which can further improve the sealing performance between the elastic conducting member 53 and the flow passage 51 in an uncompressed state.

The trigger mechanism 52 includes a trigger 521, a second spring 522, a push rod 523, and a second sealing ring 524; one end of the push rod 523 extends into the first valve housing 511 and abuts against the inclined surface of the valve core 531, and the other end abuts against the trigger 521; the second spring 522 is sleeved on the push rod 523, and two ends of the second spring 522 are respectively abutted against the end part of the push rod 523 and the outer wall of the first valve housing 511; the trigger 521 is rotatably connected to the handle 1.

Specifically, as shown in fig. 3 to 5, one end of the push rod 523 extends into the second inserting pipe 5114 and abuts against the inclined surface of the second core 5312, the second sealing ring 524 is sleeved on the push rod 523, and the second sealing ring 524 abuts against the inner wall of the second inserting pipe 5114, so as to improve the sealing property between the push rod 523 and the inserting port 513.

When the negative pressure suction function is used, the second valve housing 512 is connected to the negative pressure suction tube, the trigger 521 is pulled down, the push rod 523 moves toward the first valve housing 511, the second spring 522 is compressed, one end of the push rod 523 slides along the inclined surface of the second core 5312, the valve body 531 moves toward the second valve housing 512, the first spring 533 is compressed, the first seal ring 534 is separated from the stopper 54, and the negative pressure suction tube communicates with the knife tube 3, thereby realizing the suction function. When the suction function needs to be closed, the trigger 521 is released, the first spring 533 and the second spring 522 are restored to the original lengths, the push rod 523 is restored to the original position, the valve core 531 is also restored to the original position, the first sealing ring 534 is abutted to the check ring 54, the negative pressure suction tube is not communicated with the knife tube 3, and the suction function is closed.

In addition, the electrocoagulation device 4 comprises a control module 41 and a first triggering module 42 and a second triggering module 43 which are electrically connected with the control module 41, the first triggering module 42 and the second triggering module 43 extend out of the handle 1 to be triggered, and the knife pipe 3 is connected with the control module 41 through a conducting piece 44. The first and second triggering modules 42 and 43 are used for triggering the electric cutting and electrocoagulation functions, respectively. As shown in fig. 1 to 3, one end of the knife pipe 3 is connected and communicated with the knife head 2, the other end is connected with the joint 31, and the joint 31 is connected with the control module 41 through the conducting piece 44. In this embodiment, the control module 41 is a circuit board, the first trigger module 42 and the second trigger module 43 are respectively a first button and a second button, the conduction member 44 is a metal conductive sheet, the joint 31 is a metal joint, the metal conductive sheet is fixedly sleeved on the metal joint, the metal conductive sheet is connected with the circuit board through a wire, and the functions of electric cutting and electric coagulation can be respectively realized by respectively triggering the first trigger module 42 and the second trigger module 43. As shown in FIG. 2, the first and second trigger modules 42, 43 are each provided with contacts to facilitate the medical staff member in distinguishing the two trigger modules. As shown in fig. 1, a connection plug 8 is also electrically connected to the control module 41, and power is obtained through the connection plug 8.

Furthermore, the ablation electrode also comprises a rotating wheel 6 connected to the handle 1, and the knife tube 3 is inserted in the rotating wheel 6 through a connecting piece 9.

In addition, the ablation electrode also comprises a sleeve 7 and a driving mechanism, wherein the sleeve 7 is sleeved on the knife tube 3 in a sliding manner, and the sleeve 7 is connected with the driving mechanism through a connecting piece 9.

Specifically, as shown in fig. 5, the connecting member 9 includes a first connecting member 91 and a second connecting member 92 axially slidably connected to the first connecting member 91, two ends of the first connecting member 91 are fixedly connected to the casing 71 and the driving mechanism, respectively, the knife pipe 3 penetrates through the first connecting member 91 and then is fixedly connected to the second connecting member 92, and the first connecting member 91 is slidably connected to the inner wall of the rotating wheel 61.

As shown in fig. 1, the driving mechanism in this embodiment includes a push rod motor, a third button 71, the third button 71 extends out of the handle, a push rod of the push rod motor is connected with the first connecting piece 91, and the push rod motor is disposed in the handle 1. When the telescopic tube 7 needs to be adjusted to stretch, the third button 71 is pressed to be communicated with the push rod motor, the push rod of the push rod motor extends or retracts and pushes the first connecting piece 91 to move forwards or backwards relative to the second connecting piece 92, so that the telescopic tube 7 moves forwards or backwards relative to the knife tube 3, the telescopic tube 7 stretches, and the knife head 2 can be exposed out of the telescopic tube 7 or accommodated in the telescopic tube 7 according to actual requirements.

When the angle of the tool bit 2 needs to be adjusted, the rotating wheel 61 is rotated to enable the rotating wheel 61 to drive the first connecting piece 91 and the second connecting piece 92 to rotate, so that the adjustment of the rotating angle of the tool bit 2 is realized.

Example 2

This embodiment is similar to embodiment 1 except that, as shown in fig. 7, the valve core 531 in this embodiment includes a first core 5311 and a second core 5312 connected to the first core 5311; the upper end of the second core 5312 abuts against the push rod 523, one end of the first spring 533 abuts against the inner wall of the second valve housing 512, and the other end of the first spring 533 abuts against the lower end of the second core 5312; the first core 5311 is located above the second core 5312, the upper end of the first core 5311 abuts against a step position between the first valve housing body 5111 and the second valve housing body 5112, and the first sealing ring 534 is sleeved on the first core 5311, so that the sealing performance between the elastic conduction piece 53 and the flow channel 51 in an uncompressed state can be improved.

In use, the trigger 521 is pressed to push the second core 5312 to move downward, and at this time, the first core 5311 also moves downward, so that the first core 5311 is separated from the first and second valve housing bodies 5111 and 5112 at the step position, thereby enabling the flow passage 51 to be communicated.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. An ablation electrode with a negative pressure suction function comprises a handle (1) with a cavity (13), a cutter head (2) and a cutter tube (3), wherein the cutter head (2) is connected and communicated with the cavity (13) through the cutter tube (3), and the ablation electrode is characterized in that an electrotomy electrocoagulation device (4) connected with the cutter tube (3) is arranged on the handle (1); the ablation electrode further comprises a negative pressure suction device (5), the negative pressure suction device (5) comprises a flow channel (51) and a trigger mechanism (52), the flow channel (51) is communicated with the knife tube (3), and an elastic conducting piece (53) is arranged in the flow channel (51) in a sliding manner; one end of the trigger mechanism (52) is abutted against the elastic conducting piece (53), and the other end of the trigger mechanism extends out of the handle (1).

2. The ablation electrode with the negative pressure suction function according to claim 1, wherein the elastic conducting piece (53) comprises a valve core (531) and a first spring (533), and two ends of the first spring (533) are respectively abutted against the inner wall of the flow passage (51) and the valve core (531); and the valve core (531) is abutted against the trigger mechanism (52).

3. The ablation electrode with the negative pressure suction function according to claim 2, wherein a surface of the valve element (531) contacting the trigger mechanism (52) is an inclined surface.

4. The ablation electrode with negative pressure suction function according to claim 3, wherein the valve core (531) comprises a first core (5311) and a second core (5312) connected to the first core (5311); the second core body (5312) is abutted with the trigger mechanism (52), and two ends of the first spring (533) are respectively abutted with the inner wall of the flow passage (51) and the second core body (5312); a first sealing ring (534) is arranged between the first core body (5311) and the inner wall of the flow passage (51).

5. The ablation electrode with negative pressure suction function according to claim 3, wherein the valve core (531) comprises a first core (5311) and a second core (5312) connected to the first core (5311); the second core body (5312) is abutted with the trigger mechanism (52); a retainer ring (54) is clamped in the flow passage (51), the first spring (533) is sleeved on the first core body (5311), and two ends of the first spring (533) are respectively abutted against the second core body (5312) and the retainer ring (54).

6. The ablation electrode with the negative pressure suction function according to any one of claims 1 to 5, wherein the flow passage (51) comprises a first valve sleeve (511) and a second valve sleeve (512) detachably connected with the first valve sleeve (511), the first valve sleeve (511) is connected and communicated with the knife tube (3), and the second valve sleeve (512) is used for carrying the negative pressure suction tube.

7. The ablation electrode with negative pressure suction function according to any one of claims 1 to 5, wherein the trigger mechanism (52) comprises a trigger (521), a push rod (523); one end of the push rod (523) extends into the flow channel (51) and is abutted with the elastic conducting piece (53), and the other end of the push rod is abutted with the trigger (521); the trigger (521) is movably connected with the handle (1).

8. The ablation electrode with negative pressure suction function according to any one of claims 1 to 5, wherein the electrocoagulation device (4) comprises a control module (41) and a first trigger module (42) and a second trigger module (43) which are in communication connection with the control module (41), the knife tube (3) is connected with the control module (41) through a conducting piece (44), and the first trigger module (42) and the second trigger module (43) extend out of the handle (1).

9. The ablation electrode with the negative pressure suction function according to any one of claims 1 to 5, further comprising a rotating wheel (6) connected to the handle (1), wherein the knife tube (3) is inserted into the rotating wheel (6) through a connecting piece (9).

10. The ablation electrode with the negative pressure suction function according to any one of claims 1 to 5, further comprising a sleeve (7) and a driving mechanism, wherein the sleeve (7) is slidably sleeved on the knife tube (3), and the sleeve (7) is connected with the driving mechanism through a connecting piece (9).

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