Disposable flushing and sucking ablation electrode

Abstract

The utility model relates to the field of medical instruments, in particular to a disposable flushing and sucking ablation electrode. Comprising a handle part; the gun barrel is used for performing suction, flushing, electrocoagulation or electroresection treatment; the gun barrel comprises an inner tube, an outer tube, a rotating head and an electric knife head assembly; the flushing and suction assembly comprises a flushing pipeline, a flushing pipe control assembly, a suction pipeline, a suction pipe control assembly and a knob for locking the suction pipe control assembly; the gun barrel comprises the inner tube and the outer tube, the outer tube can be driven by the rotating head to move back and forth in the axial direction of the inner tube, on one hand, the outer tube can protect the electric knife head assembly to prevent the electric knife head assembly from being collided, and on the other hand, the electric knife head assembly is collected into the outer tube to facilitate follow-up flushing and sucking treatment; in addition, a knob capable of locking the suction tube control assembly is further arranged, so that an operator does not need to continuously press a suction button, and the operation difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, in particular to a disposable flushing and ablation electrode. Background Art

[0002] Traditional hemostasis may be performed with sutures or manually with related products. The advantage of electrosurgery is that hemostasis can be performed directly with surgical instruments. The working principle of the ablation electrode is to use high-frequency current to cut and stop bleeding in human tissue, which can be used for ablation, resection, coagulation, scraping, suction and peeling of human tissue during surgery.

[0003] Ablation electrodes, also known as electrosurgical pens, are accessories for high-frequency surgical equipment and are often used in conjunction with high-frequency surgical equipment or suction devices. Products used with medical ablation electrodes include Lip Therapeutic Devices, high-frequency electrosurgical units, high-frequency surgical instruments, and radiofrequency therapeutic devices. Although current surgical ablation electrodes also have flushing and suction functions, the operator must press the valve for a long time during the flushing and suction operation, greatly increasing the operator's difficulty and consuming time and effort. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies in the prior art and to provide a disposable flushing and aspiration ablation electrode which can realize flushing and aspiration functions without continuous pressing and is simple and convenient to operate.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] Provided is a disposable ablation electrode comprising:

[0007] A handle portion, wherein a receiving cavity is provided in the handle portion;

[0008] A gun barrel is used for suction, irrigation, electrocoagulation or electrocuting; the gun barrel comprises an inner tube, an outer tube, a rotating head and an electric knife head assembly; the proximal end of the inner tube is sleeved on the distal end of the handle and extends into the accommodating cavity, and the distal end of the inner tube is provided with the electric knife head assembly; the outer tube is sleeved on the outer end of the inner tube and is slidably connected to the inner tube via the rotating head;

[0009] The flushing and suction assembly includes: a flushing pipeline, a flushing tube control assembly, a suction pipeline, a suction tube control assembly and a knob for locking the suction tube control assembly; the distal ends of the flushing pipeline and the suction pipeline are connected to the proximal end of the inner tube through a three-way pipe, and the proximal ends of the flushing pipeline and the suction pipeline extend outside the accommodating cavity; the flushing tube control assembly and the suction tube control assembly are arranged side by side, and the middle parts of the flushing tube control assembly and the suction tube control assembly are both rotatably connected to the handle part.

[0010] Preferably, the rotating head includes: an outer rotating head and an inner rotating head sleeved inside the outer rotating head; the proximal end of the outer rotating head is clamped with the proximal end of the inner rotating head; and the outer tube is sleeved on the middle part of the distal end of the outer rotating head.

[0011] More preferably, a clamping block extends inwardly from the middle of the distal end of the outer rotating head, and an outer rotating head limiting portion extends inwardly from the middle of the distal end of the inner rotating head, and a limiting groove matching the clamping block is provided at the distal end of the outer rotating head limiting portion, and the clamping block cooperates with the limiting groove to realize the clamping connection between the distal end of the outer rotating head and the distal end of the inner rotating head; an outer tube limiting groove for limiting the outer tube is formed between the proximal end of the clamping block and the distal end of the groove wall of the limiting groove.

[0012] Preferably, the rotating head is provided outside the distal end of the handle portion and is slidably connected to the handle portion; a plurality of limiting protrusions for limiting the rotating head are provided on the distal outer wall of the handle portion.

[0013] Preferably, the proximal end of the electric knife head assembly is connected to the distal end of the inner tube, and the distal end of the electric knife head assembly is fixedly provided with a straight hook-shaped head, a curved hook-shaped head or a shovel-shaped head.

[0014] Preferably, a plurality of flushing and suction holes are provided on the distal side wall of the outer tube.

[0015] Preferably, the flushing tube control assembly includes: a flushing button extending out of the accommodating cavity and a flushing tube pressing portion provided in the accommodating cavity.

[0016] More preferably, the suction tube control assembly includes: a suction button extending out of the accommodating cavity, a suction tube pressing portion and a ramp provided in the accommodating cavity; the ramp extends toward the direction of the gun barrel.

[0017] More preferably, an elastic member is further provided in the accommodating cavity; the elastic member includes a fixing portion and two elastic sheets provided at the distal end of the fixing portion; the fixing portion is clamped to the proximal end of the handle portion, and the distal ends of the two elastic sheets respectively pass through the flushing tube pressing portion and the suction tube pressing portion.

[0018] More preferably, the knob includes: a hand-holding portion provided at the top of the handle portion and a locking portion provided in the accommodating cavity; the bottom end of the hand-holding portion is fixedly connected to the top end of the locking portion; and the bottom end of the locking portion is provided with a notch matching the ramp.

[0019] The present invention adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0020] The gun barrel of the present invention comprises an inner tube and an outer tube. The outer tube can move forward and backward along the axial direction of the inner tube under the drive of the rotating head. On the one hand, the outer tube can protect the electric knife head assembly so that it is not easy to be bumped. On the other hand, receiving the electric knife head assembly into the outer tube also facilitates subsequent flushing and suction processing. The present invention is also provided with a knob that can lock the suction tube control assembly, so that the operator does not need to continuously press the suction button, which reduces the difficulty of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the basic structure of a disposable ablation electrode in one embodiment of the present invention;

[0022] Figure 2 This is a cross-sectional view of a disposable ablation electrode in one embodiment of the present invention;

[0023] Figure 3 This is a partial structural cross-sectional view of a disposable ablation electrode in one embodiment of the present invention;

[0024] Figure 4 for Figure 3 Enlarged view of point A;

[0025] Figure 5 This is a schematic diagram of the basic structure of a knob in one embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of the basic structure of the flushing tube control assembly and the suction tube control assembly in one embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the basic structure of the straight hook-shaped head of the electric knife head assembly in one embodiment of the present utility model;

[0028] Figure 8 This is a schematic diagram of the basic structure of the hook-shaped head of the electric knife head assembly in one embodiment of the present utility model;

[0029] Figure 9 This is a schematic diagram of the basic structure of the shovel-shaped head of the electric knife head assembly in one embodiment of the present utility model.

[0030] Reference numerals in the figures include:

[0031] Handle portion 1; elastic member 11; gun barrel 2; inner tube 21; outer tube 22; flushing and suction hole 221; rotating head 23; outer rotating head 231; block 2311; inner rotating head 232; outer rotating head limiting portion 2321; outer tube limiting groove 233; electric knife head assembly 24; straight hook-shaped head 241; curved hook-shaped head 242; shovel-shaped head 243; flushing and suction assembly 3; flushing pipeline 31; suction pipeline 32; knob 33; hand-held portion 331; locking portion 332; notch 3321; flushing button 34; flushing tube pressing portion 35; suction button 36; suction tube pressing portion 37; inclined platform 38. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0035] Example

[0036] This embodiment provides a disposable ablation electrode, comprising a handle 1, a barrel 2, and an ablation assembly 3; wherein,

[0037] The handle portion 1 is provided with a receiving cavity, and an elastic member 11 is provided in the receiving cavity; the elastic member 11 includes a fixing portion and two elastic sheets provided at the distal end of the fixing portion; the fixing portion is clamped to the proximal end of the handle portion 1;

[0038] The gun barrel 2 is used for suction, flushing, electrocoagulation or electrocuting. The gun barrel 2 includes an inner tube 21, an outer tube 22, a rotating head 23 and an electric knife head assembly 24. The proximal end of the inner tube 21 is sleeved on the distal end of the handle 1 and extends into the accommodating cavity. The distal end of the inner tube 21 is provided with the electric knife head assembly 24. The outer tube 22 is sleeved on the outside of the inner tube 21 and is slidably connected to the inner tube 21 via the rotating head 23. A plurality of flushing and suction holes 221 are opened on the side wall of the distal end of the outer tube 22.

[0039] The rotating head 23 comprises an outer rotating head 231 and an inner rotating head 232 sleeved in the outer rotating head 231; the proximal end of the outer rotating head 231 is engaged with the proximal end of the inner rotating head 232; a clamping block 2311 is extended inwardly from the middle of the distal end of the outer rotating head 231, and an outer rotating head limiting portion 2321 is extended inwardly from the middle of the distal end of the inner rotating head 232, and a distal end of the outer rotating head limiting portion 2321 is provided with a clamping block 2311. The outer tube 22 is provided with a limiting groove, and the clamping block 2311 cooperates with the limiting groove to realize the clamping connection between the distal end of the outer rotating head 231 and the distal end of the inner rotating head 232; an outer tube limiting groove 233 for limiting the outer tube 22 is formed between the proximal end of the clamping block 2311 and the distal end of the groove wall of the limiting groove; the outer tube 22 is sleeved on the middle part of the distal end of the outer rotating head 231, and the proximal end of the outer tube 22 is turned outward in its circumferential direction so that it can be clamped into the outer tube limiting groove 233 and is not easy to fall out;

[0040] The rotating head 23 is sleeved on the outer side of the distal end of the handle portion 1 and is slidably connected to the handle portion 1; a plurality of limiting bumps are provided on the outer wall of the distal end of the handle portion 1 for limiting the position of the rotating head 23. The limiting bumps require the operator to apply a certain force to the rotating head 23 in order to pull the rotating head 23, thereby preventing the rotating head 23 from sliding on its own;

[0041] The proximal end of the electric knife head assembly 24 is connected to the distal end of the inner tube 21 , and the distal end of the electric knife head assembly 24 is fixedly provided with a straight hook-shaped head 241 , a curved hook-shaped head 242 or a shovel-shaped head 243 ;

[0042] The flushing and suction assembly 3 includes: a flushing pipeline 31, a flushing tube control assembly, a suction pipeline 32, a suction pipeline control assembly and a knob 33 for locking the suction pipeline control assembly; the distal ends of the flushing pipeline 31 and the suction pipeline 32 are connected to the proximal end of the inner tube 21 through a three-way pipe, and the proximal ends of the flushing pipeline 31 and the suction pipeline 32 extend to the outside of the accommodating cavity; the flushing tube control assembly and the suction tube control assembly are arranged side by side, and a limiting shaft is provided in the handle part 1. The middle portion of the tube control assembly is sleeved outside the limit shaft, so that the middle portions of the flushing tube control assembly and the suction tube control assembly are rotatably connected to the handle portion 1; the flushing tube control assembly includes: a flushing button 34 extending outside the accommodating cavity and a flushing tube pressing portion 35 provided in the accommodating cavity, the flushing button 34 and the flushing tube pressing portion 35 are respectively located at two ends of the flushing tube control assembly. When the operator presses the flushing button 34, the flushing tube pressing portion 35 is lifted, so that the flushing pipeline 31 is connected, thereby enabling the flushing operation;

[0043] The suction tube control assembly includes a suction button 36 extending out of the accommodating cavity and a suction tube pressing portion 37 disposed within the accommodating cavity. The suction button 36 and the suction tube pressing portion 37 are located at two ends of the suction tube control assembly, respectively. When the operator presses the suction button 36, the suction tube pressing portion 37 is lifted, thereby connecting the suction pipe 32 and performing the suction operation.

[0044] The distal ends of the two elastic sheets respectively penetrate the flushing tube pressing portion 35 and the suction tube pressing portion 37; when the flushing tube pressing portion 35 and the suction tube pressing portion 37 are lifted, they drive the two elastic sheets to lift together. When the pressure on the flushing button 34 and the suction button 36 disappears, the rebound force of the elastic sheets drives the flushing tube pressing portion 35 and the suction tube pressing portion 37 back to their initial positions, and then the flushing button 34 and the suction button 36 also return to their initial positions.

[0045] The knob 33 includes: a hand-holding portion 331 provided at the top of the handle portion 1 and a locking portion 332 provided in the accommodating cavity; the bottom end of the hand-holding portion 331 is fixedly connected to the top end of the locking portion 332; a notch 3321 is provided at the bottom end of the locking portion 332; the suction tube control assembly also includes a ramp 38, which extends toward the direction of the gun barrel 2 and is located in the notch 3321 in the initial state. When the operator presses the suction button 36, the ramp 38 moves down with the suction button 36 and then out of the notch 3321. At this time, by rotating the knob 33, the part of the locking portion 332 without a notch can limit the ramp 38, so that the ramp 38 cannot return to the initial position, thus completing the locking.

[0046] Here's how it works:

[0047] When electrocoagulation or electrocutting is required, the operator can select an electric knife head assembly 24 with a different head shape according to specific needs, turn on the high-frequency generator, and perform electrocoagulation or electrocutting. When the electric knife head assembly 24 is not needed, the operator can hold the rotating head 23 and apply a force to the rotating head 23 toward the distal end of the gun barrel 2, so that the rotating head 23 drives the outer tube 22 to move toward the distal end, thereby retracting the electric knife head assembly 24 at the distal end of the inner tube 21 into the outer tube 22.

[0048] When suction treatment is required, the operator presses the suction button 36, at which time the suction line 32 is connected, rotates the knob 33, locks the suction tube control assembly so that the suction tube control assembly cannot rebound, and then releases the suction button 36. The proximal end of the suction line 32 is connected to the suction device, and the suction device is turned on. The liquid in the patient's body flows into the suction line 32 through the gun barrel 2; after the suction treatment is completed, the suction device is turned off, and the knob 33 is rotated so that the suction tube control assembly rebounds to the initial position under the action of the elastic sheet.

[0049] When flushing is required, the operator presses the flush button 34, and the flushing pipeline 31 is connected. Physiological saline or liquid medicine can be injected into the proximal end of the flushing pipeline 31, so that it flows through the barrel 2 to the part that needs to be flushed.

[0050] To sum up, the gun barrel of the present invention includes an inner tube and an outer tube. The outer tube can move back and forth along the axial direction of the inner tube under the drive of the rotating head. On the one hand, the outer tube can protect the electric knife head assembly so that it is not easily bumped. On the other hand, the electric knife head assembly is placed in the outer tube, which is also convenient for subsequent flushing and suction processing. The present invention is also provided with a knob that can lock the suction tube control assembly, so that the operator does not need to continuously press the suction button, reducing the difficulty of operation.

[0051] The above description is only a preferred embodiment of the present invention and does not limit the implementation method and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A disposable ablation electrode, characterized in that: include: A handle portion (1), wherein a receiving cavity is provided in the handle portion (1); A gun barrel (2) is used for performing suction, flushing, electrocoagulation or electrocuting treatment; the gun barrel (2) comprises: an inner tube (21), an outer tube (22), a rotating head (23) and an electric knife head assembly (24); the proximal end of the inner tube (21) is sleeved on the distal end of the handle portion (1) and extends into the accommodating cavity, and the distal end of the inner tube (21) is provided with the electric knife head assembly (24); the outer tube (22) is sleeved on the outside of the inner tube (21) and is slidably connected to the inner tube (21) via the rotating head (23); The flushing and suction assembly (3) comprises: a flushing pipeline (31), a flushing tube control assembly, a suction pipeline (32), a suction tube control assembly, and a knob (33) for locking the suction tube control assembly; the distal ends of the flushing pipeline (31) and the suction pipeline (32) are connected to the proximal end of the inner tube (21) through a three-way pipe, and the proximal ends of the flushing pipeline (31) and the suction pipeline (32) extend outside the accommodating cavity; the flushing tube control assembly and the suction tube control assembly are arranged side by side, and the middle parts of the flushing tube control assembly and the suction tube control assembly are both rotatably connected to the handle part (1).

2. The disposable ablation electrode according to claim 1, characterized in that: The rotating head (23) comprises: an outer rotating head (231) and an inner rotating head (232) sleeved inside the outer rotating head (231); the proximal end of the outer rotating head (231) is clamped with the proximal end of the inner rotating head (232); and the outer tube (22) is sleeved on the middle portion of the distal end of the outer rotating head (231).

3. The disposable ablation electrode according to claim 2, characterized in that: A clamping block (2311) is extended inwardly from the middle of the distal end of the outer rotating head (231), and an outer rotating head limiting portion (2321) is extended inwardly from the middle of the distal end of the inner rotating head (232). A limiting groove matching the clamping block (2311) is provided at the distal end of the outer rotating head limiting portion (2321). The clamping block (2311) cooperates with the limiting groove to realize the clamping connection between the distal end of the outer rotating head (231) and the distal end of the groove wall of the inner rotating head (232); an outer tube limiting groove (233) for limiting the outer tube (22) is formed between the proximal end of the clamping block (2311) and the distal end of the groove wall of the limiting groove.

4. The disposable ablation electrode according to claim 1, characterized in that: The rotating head (23) is sleeved outside the distal end of the handle portion (1) and is slidably connected to the handle portion (1); a plurality of limiting protrusions for limiting the rotating head (23) are provided on the distal outer wall of the handle portion (1).

5. The disposable ablation electrode according to claim 1, characterized in that: The proximal end of the electric knife head assembly (24) is connected to the distal end of the inner tube (21), and the distal end of the electric knife head assembly (24) is fixedly provided with a straight hook-shaped head (241), a curved hook-shaped head (242) or a shovel-shaped head (243).

6. The disposable ablation electrode according to claim 1, characterized in that: A plurality of flushing and suction holes (221) are provided on the distal side wall of the outer tube (22).

7. The disposable ablation electrode according to claim 1, characterized in that: The flushing tube control assembly comprises a flushing button (34) extending out of the accommodating cavity and a flushing tube pressing portion (35) arranged in the accommodating cavity.

8. The disposable ablation electrode according to claim 7, characterized in that: The suction tube control assembly comprises: a suction button (36) extending out of the accommodating cavity, a suction tube pressing portion (37) arranged in the accommodating cavity, and a ramp (38); the ramp (38) extends in the direction of the gun barrel (2).

9. The disposable ablation electrode according to claim 8, characterized in that: An elastic member (11) is also provided in the accommodating cavity; the elastic member (11) comprises a fixing portion and two elastic sheets provided at the distal end of the fixing portion; the fixing portion is clamped to the proximal end of the handle portion (1), and the distal ends of the two elastic sheets respectively penetrate the flushing tube pressing portion (35) and the suction tube pressing portion (37).

10. The disposable ablation electrode according to claim 8, characterized in that: The knob (33) comprises: a hand-held portion (331) provided at the top end of the handle portion (1) and a locking portion (332) provided in the accommodating cavity; the bottom end of the hand-held portion (331) is fixedly connected to the top end of the locking portion (332); and the bottom end of the locking portion (332) is provided with a notch (3321) that matches the ramp (38).

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