CN210044113U - High frequency compound electric knife - Google Patents

Abstract

The utility model belongs to the technical field of the cutting is peeled off under the endoscope, concretely relates to compound electrotome of high frequency, including the operation portion, main part and cutter head portion, the operation portion includes the slide bar, the slide bar cover is equipped with the sliding ring, be provided with the electrical connection post on the sliding ring, be provided with the stay cord in the slide bar, electrical connection post connection sliding ring and stay cord, the main part includes the body, the filling opening has been seted up to the body, the inside liquid column passageway that forms of body, filling opening intercommunication liquid column passageway, liquid column passageway runs through the cutter head portion, the cutter head portion includes the cutter arbor, acupotomy and insulating head, the cutter arbor is hollow structure, the one end and the stay cord of cutter arbor are connected, the stay cord drives the cutter arbor and slides in the body, the other end and the insulating head. The utility model provides a need the problem of change equipment when electrotome mark, hydrojet and cutting, the function in an organic whole of time electrotome collection cutting, mark and hydrojet, the structure is succinct, and low in production cost is honest and clean, has guaranteed the security and the reliability of operation.

Description

High frequency compound electric knife

technical field

The utility model belongs to the technical field of cutting and stripping under an endoscope, in particular to a high-frequency composite electric knife.

Background technique

In recent years, with the development of endoscopic technology, endoscopic submucosal dissection (ESD) has been widely used, and it is gradually becoming the first choice for the treatment of gastrointestinal bleeding, polypectomy and early cancer. However, the ESD procedure is complicated, generally time-consuming, and requires endoscopic-guided surgery. The endoscope first enters the human body to find the diseased tissue. The instrument enters the human body through the endoscope forceps, and the lesions are marked. After marking, the instrument is withdrawn. It is necessary to replace the instruments during the operation, which makes the operation more complicated, prolongs the operation time, and brings pain to the patient.

Utility model content

The purpose of this utility model is to solve the above-mentioned problems, and the utility model provides a high-frequency composite electric knife which has the functions of marking, cutting and liquid spraying, and has a simple structure and low cost at the same time.

The specific technical solutions are as follows:

A high-frequency composite electric knife, comprising an operation part, a main body part and a knife head,

The operating part includes a sliding rod, a sliding ring is sleeved on the sliding rod, a slot is formed on the sliding ring, a receiving column is arranged in the slot, a pulling rope is arranged in the sliding rod, and the The power receiving post connects the slip ring and the pull rope, and the pull rope passes through the main body part and is connected with the cutter head part,

The main part includes a pipe body, the pipe body is provided with an injection port, the pipe body is hollow and is formed with a liquid column channel, the injection port is connected to the liquid column channel, and the liquid column channel penetrates the knife head,

The cutter head is at least partially located in the pipe body, the cutter head comprises a cutter bar, a needle cutter and an insulating head, the cutter bar is a hollow structure, and one end of the cutter bar is connected with the pull rope, The pulling rope drives the knife rod to slide in the pipe body,

The other end of the knife rod is connected with the insulating head, the needle knife is arranged in the knife rod, and the insulating head is a hollow structure and communicates with the knife rod.

In some embodiments, the operation part further includes a booster tube and a connecting column, the booster tube is sleeved on the pull rope and arranged in the sliding rod and the tube body, and passes through the The connection post is fixedly connected to the electrical connection post.

In some embodiments, the tube body further comprises a luer conical rod tip, an electric knife rod tip, a sheath tube and a sheath tube, one end of the luer conical rod tip is sleeved with the sliding rod, and the The other end of the luer conical rod head is sleeved with one end of the electric knife rod head, the electric knife rod head is sleeved with the sheath tube through a connecting piece provided inside, and the sheath tube is sleeved on the sheath tube.

In certain embodiments, the luer cone tip communicates with the liquid column channel.

In some embodiments, the cutter head further includes a butt pipe, the cutter bar is connected to the pull rope through the butt pipe, and a first limit block is provided in the middle of the butt pipe.

In some embodiments, one end of the knife bar is provided with a plurality of sliding openings, the needle knife is provided with a bending portion, and the bending portion is slidably clamped in the sliding openings.

In some embodiments, the knife head further includes a needle knife fixing sleeve, the needle knife fixing sleeve is sleeved at the sliding port, and the outer peripheral surface of the needle knife fixing sleeve is in a tooth-like structure, and is connected with the The tube body is tightly fitted.

In some embodiments, the other end of the knife bar is trumpet-shaped and arranged, and the middle part of the knife bar is provided with a second limit block, and the outer diameter of the second limit block is larger than that of the needle knife fixed The inner diameter of the sleeve.

In some embodiments, the insulating head is sleeved on the port of the cutter bar.

In some embodiments, annular pull handles are provided on both the sliding rod and the sliding ring.

The utility model has the following beneficial effects: the high-frequency composite electric knife provided by the utility model can mark and cut the lesion through the cooperation of the knife bar and the needle knife. In this process, the instruments need not be replaced and the operation time is saved. In addition, the high-frequency composite cutter head provided by the present invention is also provided with an injection port and a liquid column channel, so if the visual field of the lesion is not clear and there is blood stains, the injection port and the liquid column channel can pass through the injection port and the liquid column channel without changing the instrument. Cleaning the lesions ensures the safety and reliability of the operation.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the high frequency composite electrosurgical knife provided by the embodiment of the present invention;

Fig. 2 is the plane cross-sectional schematic diagram of the high-frequency compound electric knife provided by the embodiment of the present invention;

3 is an enlarged schematic view of FIG. 2 at A;

4 is a schematic diagram of an enlarged plane cross-sectional view of the knife head when the high-frequency composite electric knife slip ring provided by the embodiment of the present invention is pulled backward;

5 is an enlarged plan cross-sectional schematic diagram of the knife head when the high-frequency composite electric knife slip ring provided by the embodiment of the present invention is pushed forward.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to FIGS. 1 to 5 .

The utility model provides a high-frequency composite electric knife, and the specific scheme is as follows:

A high-frequency composite electric knife, comprising an operation part 1 , a main body part 2 and a knife head part 3 . The operation part 1 includes a sliding rod 11 . The sliding rod 11 is sleeved with a sliding ring 12 . The sliding ring 12 is provided with a slot 121 . The electric column 121 is connected to the slip ring 12 and the pull rope 111 , and the pull rope 111 is passed through the main body part 2 and connected to the cutter head part 3 . In this way, the operating part 1 drives the pulling rope 111 through the slip ring 12, thereby driving the cutter head 3 to operate and treat the lesion.

In some embodiments, the operation part 1 further includes a booster tube 112 and a connecting column 123. The booster tube 112 is sleeved on the pull rope 111 and is arranged in the sliding rod 11 and the tube body 21, and is connected to the connecting column 123 and all the The connecting posts 122 are fixedly connected. In the case of needing to be energized, the power receiving column 122 is connected to electricity, and the power is transmitted through the connecting column 123 , the booster tube 112 and the pull rope 111 .

The main body 2 includes a pipe body 21 . The pipe body 21 is provided with an injection port 21 . The pipe body 21 has a hollow structure and is formed with a liquid column channel 27 . In this way, the liquid is injected into the injection port 21 , the liquid flows to the blade head through the liquid column channel 27 , and is ejected from the blade head 3 .

In some embodiments, the tube body further includes a luer conical rod head 23, an electric knife rod head 24, a sheath tube 25 and a sheath tube 26, one end of the luer conical rod head 23 is sleeved with the sliding rod 11, and the luer The other end of the conical rod head 23 is sleeved with one end of the electric knife rod head 24 , the electric knife rod head 24 is sleeved with the sheath tube 26 through the connecting member 28 provided inside, and the sheath tube 25 is sleeved on the sheath tube 26 . In certain embodiments, the luer cone tip 23 communicates with the liquid column channel 27 .

Specifically, an infusion pump or a syringe can be connected to the luer cone rod head 23 to perform infusion, such as injecting physiological saline and the like. The liquid enters the liquid column channel 27 formed by the connector 28 and the sheath tube 26 through the luer conical rod head 23 , and the sheath tube 25 protects the sheath tube 26 .

The cutter head 3 is at least partially located in the pipe body 21, the cutter head 3 includes a cutter bar 31, a needle knife 32 and an insulating head 33, the cutter bar 31 is a hollow structure, and one end of the cutter bar 31 is connected with the pulling rope 111, and the The rope 111 drives the cutter bar to slide in the tube body 21 . The other end of the cutter bar 31 is connected to the insulating head 33 . The needle knife 32 is arranged in the cutter bar 31 .

In some embodiments, the cutter head 3 further includes a butt pipe 34 , the cutter bar 31 is connected to the pull rope 111 through the butt pipe 34 , and a first limit block 341 is provided in the middle of the butt pipe.

In this way, the knife bar 31 is driven by the pulling rope 111 to slide in the sheath tube 26, so that the needle knife 32 slides relative to the knife bar 31, so that the needle knife 32 extends and retracts in the knife bar 31, and the first limit The block 341 cooperates with the bent portion of the needle knife 32 to play a limiting role when the pulling rope drives the knife rod to prevent the knife rod from extending out of the sheath tube 26 .

In some embodiments, one end of the knife bar 31 is provided with a plurality of sliding ports 312 , and the needle knife 32 is provided with a bent portion 321 , and the bent portion 321 is slidably clamped in the sliding port 312 . The knife head 3 also includes a needle knife fixing sleeve 35, the needle knife fixing sleeve 35 is sleeved at the sliding port 312, and the outer peripheral surface of the needle knife fixing sleeve 35 is in a toothed structure, and is tightly fitted with the pipe body 21. In this way, the needle knife 32 remains stationary relative to the sheath tube 26, and can slide relative to the knife bar 31. In addition, the sliding port 312 can also serve as an inflow port for liquid to enter the knife bar.

In some embodiments, the other end of the knife bar 31 is trumpet-shaped, a second limit block 311 is disposed in the middle of the knife bar 31, and the outer diameter of the second limit block 311 is larger than that of the needle knife fixed The inner diameter of the sleeve 35. In this way, the outflow of the liquid from the liquid column channel 27 can increase the spray area, and the provision of the second limiting block 311 can effectively prevent the cutter bar 31 from being excessively retracted into the sheath tube 26 .

In some embodiments, the insulating head 33 is sleeved on the port of the cutter bar 31 . The insulating head 33 effectively prevents the cutter head 3 from forming a circuit with the tissue, and effectively converts electrical energy into thermal energy, thereby cutting the tissue.

In some embodiments, an annular pull handle 13 is provided on both the sliding rod 11 and the sliding ring 12 . The arrangement of the ring handle 13 is convenient for operation.

To sum up, the working principle of the high-frequency composite electrosurgical knife in the embodiment of the present invention is roughly as follows:

Liquid spraying and marking: find the high-frequency compound electric knife to the affected area under the endoscope. If the affected area is heavily stained with blood, which will affect the marking and cutting operations, pull the annular handle 13 of the slip ring 11 backwards to drive the pull rope 111 to move the knife bar. 31 Pull back, at this time the needle knife protrudes from the knife bar 31 and the insulating head 33, and the cleaning solution is injected by the medical staff through the injection port 22 on the Luer cone rod head 23 with a syringe, and flows into the liquid column channel 27, and It is sprayed from the insulating head 33 to wash the blood stains. After cleaning, the electricity connection post 122 is connected to electricity, and the electricity is transported to the source of the needle knife through the pull rope 111, so that the needle knife 32 goes around the periphery of the lesion to burn a circle of marks, so as to facilitate accurate cutting and peeling or shallow cutting.

Cutting and peeling: push the annular handle 13 of the slip ring 11 forward, and push the knife bar 31 forward through the pull rope 111 under the cooperation of the booster rod 112, so that the knife bar 31 is exposed from the sheath tube 26 and covers the needle knife 32; At this time, the power is turned on, and under the field of view of the endoscope, the cutter bar 31 is driven along the marking circle to cut the surrounding tissue of the lesion and peel off the lesion.

The high-frequency composite electric knife provided by the utility model can mark and cut the lesion through the cooperation of the knife bar 31 and the needle knife 32. In this process, there is no need to replace the instruments and the operation time is saved. In addition, the high-frequency composite cutter head provided by the present invention is also provided with an injection port 121 and a liquid column channel 27, so if the field of view at the lesion is not clear and there is blood stains, the injection port 121 and the liquid column channel 27 can pass through the injection port 121 and the liquid column channel 27 without replacement. The lesions are cleaned in the case of instruments to ensure the safety and reliability of the operation.

The above is only a preferred feasible embodiment of the present invention, not a limitation of the present invention, and the present invention is not limited to the above examples. Those skilled in the art, within the essential scope of the present invention, make changes, Modification, addition or replacement should also belong to the protection scope of the present invention.

Claims (10)

1. a high-frequency compound electric knife, is characterized in that: comprise operation part, main body part and knife head, The operating part includes a sliding rod, a sliding ring is sleeved on the sliding rod, a slot is formed on the sliding ring, a receiving column is arranged in the slot, a pulling rope is arranged in the sliding rod, and the The power receiving post connects the slip ring and the pull rope, and the pull rope passes through the main body part and is connected with the cutter head part, The main part includes a pipe body, the pipe body is provided with an injection port, the pipe body is hollow and is formed with a liquid column channel, the injection port is connected to the liquid column channel, and the liquid column channel penetrates the knife head, The cutter head is at least partially located in the pipe body, the cutter head comprises a cutter bar, a needle cutter and an insulating head, the cutter bar is a hollow structure, and one end of the cutter bar is connected with the pull rope, The pulling rope drives the knife rod to slide in the pipe body, The other end of the knife rod is connected with the insulating head, the needle knife is arranged in the knife rod, and the insulating head is a hollow structure and communicates with the knife rod. 2 . The high-frequency composite electrosurgical knife according to claim 1 , wherein the operation part further comprises a booster tube and a connecting column, and the booster tube is sleeved on the pull rope and arranged on the slide. 3 . The rod and the pipe body are fixedly connected through the connecting post and the power receiving post. 3. The high-frequency composite electrosurgical knife according to claim 1, wherein the pipe body further comprises a Luer conical rod head, an electric knife rod head, a sheath and a sheath, and the Luer conical rod head The other end of the luer cone head is sleeved with the sliding rod, the other end of the luer cone head is sleeved with one end of the electric knife rod head, and the electric knife rod head is sleeved with the sheath tube through the connecting piece provided inside. Then, the sheath tube is sleeved on the sheath tube. 4 . The high-frequency composite electrosurgical knife according to claim 3 , wherein the Luer conical rod head communicates with the liquid column channel. 5 . 5 . The high-frequency composite electrosurgical knife according to claim 1 , wherein the knife head further comprises a butt pipe, and the knife shank is connected to the pull rope through the butt pipe, and the middle part of the butt pipe Set the first limit block. 6 . The high-frequency compound electric knife according to claim 1 , wherein a plurality of sliding openings are opened at one end of the knife bar, and the needle knife is provided with a bending part, and the bending part is slidable. 7 . is clamped in the sliding port. 7 . The high-frequency compound electric knife according to claim 6 , wherein the knife head further comprises a needle knife fixing sleeve, the needle knife fixing sleeve is sleeved at the sliding port, and the needle knife is fixed The outer peripheral surface of the sleeve has a tooth-like structure and is tightly fitted with the pipe body. 8 . The high-frequency compound electric knife according to claim 7 , wherein the other end of the knife bar is trumpet-shaped and arranged, and the middle part of the knife bar is provided with a second limit block. The outer diameter of the limiting block is larger than the inner diameter of the needle knife fixing sleeve. 9 . The high-frequency composite electric knife according to claim 8 , wherein the insulating head is sleeved on the port of the knife shank. 10 . 10 . The high-frequency composite electrosurgical knife according to claim 1 , wherein an annular handle is provided on both the sliding rod and the sliding ring. 11 .

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