CN215651490U - High-frequency incision knife - Google Patents
High-frequency incision knife Download PDFInfo
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- CN215651490U CN215651490U CN202121792063.7U CN202121792063U CN215651490U CN 215651490 U CN215651490 U CN 215651490U CN 202121792063 U CN202121792063 U CN 202121792063U CN 215651490 U CN215651490 U CN 215651490U
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- incision knife
- liquid
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Abstract
The utility model discloses a high-frequency incision knife which comprises a handle, a liquid injection joint, an electrode connecting assembly, a sealing assembly and a joint, wherein a cavity channel is arranged in the liquid injection joint, the front end of the cavity channel is provided with a baffle ring arranged on the liquid injection joint, and the rear end of the cavity channel is provided with an assembly port; the electrode connecting assembly is internally provided with a liquid channel and comprises a connecting pipe, the connecting pipe is provided with a pore passage which is at least one part of the liquid channel, the connecting pipe penetrates through the cavity passage and is provided with a liquid inlet hole which is communicated with the pore passage and the cavity passage; the sealing assembly comprises a first sealing ring, a support piece and a second sealing ring which are sequentially sleeved on the connecting pipe along the axial direction of the connecting pipe and are positioned in the cavity, and the first sealing ring is positioned behind the baffle ring; the joint is connected to the handle, and at least part of the joint is assembled into the assembly port to press the second sealing ring and press the first sealing ring through the support member to seal two ends of the cavity channel. The utility model can well and conveniently seal the cavity channel of the liquid injection joint through the matching of the sealing component and the joint, and is easy to assemble.
Description
Technical Field
The utility model relates to a high-frequency incision knife.
Background
The endoscope high-frequency incision knife is mainly applied to stripping treatment of early-stage cancer mucosal layer lesions in a digestive tract system, a liquid injection cavity of the high-frequency incision knife with a liquid injection function in the current market is not easy to seal, liquid injection interfaces of the high-frequency incision knife are fixed, and a medical staff can adjust the operation posture in the actual operation process, so the liquid injection interfaces of the high-frequency incision knife can change accordingly, when liquid needs to be injected, the position of a handle needs to be adjusted again to enable the liquid injection interfaces to be located at the position easy to operate, and the high-frequency incision knife is inconvenient to inject liquid.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a high-frequency incision knife which can well and conveniently seal a cavity channel of a liquid injection joint through the matching of a sealing component and the joint and is easy to assemble.
In order to solve the technical problems, the technical scheme of the utility model is as follows: a high frequency incision knife comprising:
a handle;
the liquid injection connector is internally provided with a cavity, the front end of the cavity is provided with a baffle ring arranged on the liquid injection connector, and the rear end of the cavity is provided with an assembly port;
the electrode connecting assembly is internally provided with a liquid channel and comprises a connecting pipe, the connecting pipe is provided with a pore passage which is used as at least one part of the liquid channel, and the connecting pipe penetrates through the cavity passage and is provided with a liquid inlet hole for communicating the pore passage with the cavity passage;
the sealing assembly comprises a first sealing ring, a support piece and a second sealing ring which are sequentially sleeved on the connecting pipe along the axial direction of the connecting pipe and are positioned in the cavity, and the first sealing ring is positioned behind the baffle ring;
the joint is connected to the handle, at least part of the joint is assembled into the assembly port to extrude the sealing ring II and extrude the sealing ring I through the supporting piece to seal two ends of the cavity channel.
Further to prevent leakage of liquid from the trailing end of the bore, the electrode connection assembly further comprises a plug for sealing the trailing end of the bore.
Further, the liquid injection joint can rotate relative to the joint.
Further in order to prevent that grafting portion and notes liquid connect and take place relative displacement in the axial, connect and have grafting portion, grafting portion cartridge is in the fitting port, grafting portion and notes liquid connect between through the cooperation of at least one concave-convex structure and connect, concave-convex structure includes:
a convex part which is arranged on one of the outer peripheral wall of the insertion part and the inner peripheral wall of the liquid injection joint and is convex along the radial direction;
and the concave part is arranged on the other one of the outer peripheral wall of the inserting part and the inner peripheral wall of the liquid filling joint and is inwards concave along the radial direction, and the convex part is embedded into the corresponding concave part.
Further, the joint is rotatably connected to the handle.
Further, be equipped with between joint and handle and prevent that the joint from for handle axial displacement's axial limit structure, axial limit structure includes:
the annular groove is arranged on the peripheral wall of the handle;
and the annular bulge is arranged on the inner peripheral wall of the joint and is rotatably embedded in the annular groove.
Further, the high-frequency incision knife also comprises an insulating part and a working electrode; wherein the content of the first and second substances,
the insulating part is connected with the liquid injection joint;
the working electrode is movably connected to the insulating part and electrically connected with the electrode connecting assembly, and a liquid outlet hole communicated with the liquid channel is formed in the working electrode.
The high-frequency incision knife further comprises a sliding block, the sliding block is arranged on the handle in a sliding mode, a high-frequency plug electrically connected with the electrode connecting assembly is arranged on the sliding block, and the sliding block is suitable for driving the working electrode to move back and forth on the insulating part through the electrode connecting assembly.
Further provided is a concrete structure of an insulating part, which comprises an insulating seat and an outer insulating layer; wherein the content of the first and second substances,
the working electrode can be inserted in the insulating seat along the axial direction of the working electrode in a movable manner;
the outer insulating layer wraps the insulating base and the electrode connecting assembly to fix the insulating base.
Further, the electrode connecting assembly further comprises an electric connecting piece and a spiral spring tube with an insulating layer; wherein the content of the first and second substances,
the electric connecting piece is inserted in the head of the spiral spring tube, and the tail of the working electrode is inserted in the electric connecting piece;
the spiral spring pipe is connected with the connecting pipe.
Further, the head of the working electrode is straight or O-shaped or D-shaped or T-shaped along the axial section.
After the technical scheme is adopted, the joint is inserted into an assembly port of the liquid injection joint, the first sealing ring is extruded and the second sealing ring is extruded through the support piece, the first sealing ring and the second sealing ring are extruded and deformed, so that two end parts of the cavity channel are sealed, liquid in the cavity channel is effectively prevented from leaking, and the liquid can only enter the liquid channel; when liquid needs to be injected, the handle is fixed, the joint is rotated, and the liquid injection joint rotates along with the joint, so that the position of a liquid injection interface on the liquid injection joint is adjusted, the joint can also be fixed, the liquid injection joint is rotated relative to the joint, and the position of the liquid injection interface on the liquid injection joint is adjusted.
Drawings
FIG. 1 is a schematic view of the structure of a high-frequency incision knife of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic structural view of a liquid injection connector of the present invention;
FIG. 4 is a schematic structural view of a joint of the present invention;
FIG. 5 is a schematic view of the structure of the electrode connecting assembly and the insulating part of the present invention;
FIG. 6 is a schematic view of a first configuration of a working electrode according to the present invention;
FIG. 7 is a schematic diagram of a second construction of the working electrode of the present invention;
FIG. 8 is a schematic view of a third construction of the working electrode of the present invention;
FIG. 9 is a schematic diagram of a fourth configuration of the working electrode of the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the utility model briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
As shown in fig. 1 to 9, a high-frequency incision knife includes:
a handle 1;
the liquid injection connector 2 is internally provided with a cavity, the front end of the cavity is provided with a baffle ring 21 arranged on the liquid injection connector 2, and the rear end of the cavity is provided with an assembly port;
the electrode connecting assembly is internally provided with a liquid channel and comprises a connecting pipe 31, the connecting pipe 31 is provided with a pore passage which is at least one part of the liquid channel, and the connecting pipe 31 penetrates through the cavity and is provided with a liquid inlet hole for communicating the pore passage with the cavity;
the sealing assembly comprises a first sealing ring 41, a support member 42 and a second sealing ring 43 which are sequentially sleeved on the connecting pipe 31 along the axial direction of the connecting pipe 31 and are positioned in the cavity, and the first sealing ring 41 is positioned behind the baffle ring 21;
and the joint 5 is connected to the handle 1, at least part of the joint 5 is assembled into the assembly port to extrude the second sealing ring 43 and extrude the first sealing ring 41 through the supporting piece 42 to seal two ends of the cavity channel.
In this embodiment, as shown in fig. 1 and 2, the liquid injection connector 2 is provided with a liquid injection interface 22 communicated with the cavity, and the liquid injection interface 22 is a luer taper interface.
Specifically, the joint 5 is inserted into an assembly opening of the liquid injection joint 2, the sealing ring II 43 is extruded, the sealing ring I41 is extruded through the supporting piece 42, the sealing ring I41 and the sealing ring II 43 are extruded and deformed, so that two end parts of a cavity channel are sealed, liquid in the cavity channel is effectively prevented from leaking, and the liquid can only enter a liquid channel.
As shown in fig. 1, to prevent leakage of liquid from the trailing end of the bore, the electrode connection assembly further comprises a plug 34 for sealing the trailing end of the bore.
In this embodiment, the plug 34 is located in the handle 1, and the tail end of the connecting tube 31 penetrates into the handle and abuts against the plug 34. The tail end of the hole is blocked, and the liquid can only flow to the head of the hole.
In the present embodiment, the supporting member 42 includes:
two abutting rings respectively sleeved on the connecting pipe 31;
a stay connected between the two abutment rings, a first seal 41 being squeezed between the stop ring 21 and one abutment ring, and a second seal 43 being squeezed between the joint 5 and the other abutment ring.
In this embodiment, the filling connector 2 is rotatable relative to the connector 5.
As shown in fig. 1, 2 and 4, in order to prevent the plug part 51 and the liquid injection connector 2 from being displaced relative to each other in the axial direction, the connector 5 has a plug part 51, the plug part 51 is inserted into the mounting port, the plug part 51 and the liquid injection connector 2 are connected in a matching manner by at least one concave-convex structure 6, and the concave-convex structure 6 includes:
a convex portion provided on one of the outer peripheral wall of the socket portion 51 and the inner peripheral wall of the liquid injection joint 2 and protruding radially outward;
and a recess provided on the other of the outer peripheral wall of the socket 51 and the inner peripheral wall of the liquid filling joint 2 and recessed in the radial direction, the convex portion fitting into the corresponding recess.
In this embodiment, the joint 5 further has a main body 52, a screw portion for facilitating rotation of the joint 5 is provided on an outer wall of the main body 52, and a plurality of hollow holes 53 are provided on a peripheral wall of the screw portion.
As shown in fig. 1 and 2, the joint 5 is rotatably connected to the handle 1. When the adapter 5 is rotated, friction between the fill adapter 2 and the adapter 5 causes the fill adapter 2 to rotate with the adapter 5.
As shown in fig. 1 and 2, an axial limiting structure 7 for preventing the joint 5 from moving axially relative to the handle 1 is arranged between the joint 5 and the handle 1, and the axial limiting structure 7 comprises:
the ring groove is arranged on the peripheral wall of the handle 1;
and the annular bulge is arranged on the inner peripheral wall of the joint 5 and is rotatably embedded in the annular groove.
Specifically, when liquid needs to be injected, the handle 1 is fixed, the joint 5 is rotated, and the liquid injection joint 2 rotates along with the joint 5, so that the position of the liquid injection interface 22 on the liquid injection joint 2 is adjusted, the joint 5 can also be fixed, and the liquid injection joint 2 is rotated relative to the joint 5, so that the position of the liquid injection interface 22 on the liquid injection joint 2 is adjusted.
As shown in fig. 1, 5, the high-frequency incision knife further includes an insulating portion 8 and a working electrode 9; wherein the content of the first and second substances,
the insulating part 8 is connected with the liquid injection joint 2;
working electrode 9 swing joint be in on insulating part 8, and with electrode coupling assembling electric connection, be equipped with in working electrode 9 with liquid outlet hole that liquid channel is linked together.
As shown in fig. 1, the high-frequency incision knife further comprises a sliding block 10, the sliding block 10 is slidably mounted on the handle 1, a high-frequency plug 101 electrically connected with the electrode connecting assembly is arranged on the sliding block 10, and the sliding block 10 is suitable for driving the working electrode 9 to move back and forth on the insulating part 8 through the electrode connecting assembly.
As shown in fig. 5, the insulating portion 8 includes an insulating seat 81 and an outer insulating layer 82; wherein the content of the first and second substances,
the working electrode 9 is inserted in the insulating seat 81 in a manner of moving along the axial direction;
the outer insulating layer 82 is wrapped outside the insulating base 81 and the electrode connecting assembly to fix the insulating base 81.
As shown in fig. 5, the electrode connecting assembly further includes an electrical connector 32 and a spiral spring tube 33 with an insulating layer; wherein the content of the first and second substances,
the electric connector 32 is inserted into the head of the spiral spring tube 33, and the tail of the working electrode 9 is inserted into the electric connector 32;
the coil spring tube 33 is connected to the connection tube 31.
In this embodiment, the structure of the working electrode 9 may take various forms:
first, as shown in fig. 6, the head of the working electrode 9 is straight in section along the axial direction thereof;
secondly, as shown in fig. 7, the head of the working electrode 9 has an O-shaped cross section along the axial direction thereof;
thirdly, as shown in fig. 8, the head of the working electrode 9 is D-shaped in cross section along the axial direction thereof;
fourthly, as shown in fig. 9, the head of the working electrode 9 is T-shaped in cross section along the axial direction thereof;
the above embodiments are described in further detail to solve the technical problems, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A high frequency incision knife, comprising:
a handle (1);
the liquid injection connector (2) is internally provided with a cavity, the front end of the cavity is provided with a baffle ring (21) arranged on the liquid injection connector (2), and the rear end of the cavity is provided with an assembly port;
the electrode connecting assembly is internally provided with a liquid channel and comprises a connecting pipe (31), the connecting pipe (31) is provided with a pore passage which is at least one part of the liquid channel, and the connecting pipe (31) penetrates through the cavity passage and is provided with a liquid inlet hole for communicating the pore passage with the cavity passage;
the sealing assembly comprises a first sealing ring (41), a support piece (42) and a second sealing ring (43), wherein the first sealing ring (41), the support piece (42) and the second sealing ring (43) are sequentially sleeved on the connecting pipe (31) along the axial direction of the connecting pipe (31) and are positioned in the cavity, and the first sealing ring (41) is positioned behind the baffle ring (21);
the joint (5), connect (5) and connect on the handle (1), the at least part assembly of joint (5) is gone into the assembly mouth is in order to extrude sealing washer two (43) and through support piece (42) extrusion sealing washer one (41) are in order to seal the both ends of chamber way.
2. High-frequency incision knife according to claim 1,
the electrode connection assembly further comprises a plug (34) for sealing the trailing end of the bore.
3. High-frequency incision knife according to claim 1,
the liquid injection joint (2) can rotate relative to the joint (5).
4. High-frequency incision knife according to claim 1,
connect (5) have grafting portion (51), grafting portion (51) cartridge is in the assembly opening, grafting portion (51) and annotate and connect (2) between through the cooperation of at least one concave-convex structure (6) and connect, concave-convex structure (6) include:
a convex part which is arranged on one of the outer peripheral wall of the plug part (51) and the inner peripheral wall of the liquid injection joint (2) and is convex along the radial direction;
and a concave part which is arranged on the other one of the outer peripheral wall of the plug part (51) and the inner peripheral wall of the liquid filling joint (2) and is inwards concave along the radial direction, and the convex part is embedded into the corresponding concave part.
5. High-frequency incision knife according to claim 1,
the joint (5) is rotatably connected to the handle (1).
6. High-frequency incision knife according to claim 5,
an axial limiting structure (7) for preventing the joint (5) from axially moving relative to the handle (1) is arranged between the joint (5) and the handle (1), and the axial limiting structure (7) comprises:
the ring groove is arranged on the peripheral wall of the handle (1);
and the annular bulge is arranged on the inner peripheral wall of the joint (5) and is rotatably embedded in the annular groove.
7. High-frequency incision knife according to claim 1,
further comprising an insulating portion (8) and a working electrode (9); wherein the content of the first and second substances,
the insulating part (8) is connected with the liquid injection joint (2);
working electrode (9) swing joint be in on insulating part (8), and with electrode coupling assembling electric connection, be equipped with in working electrode (9) with the liquid outlet hole that liquid channel is linked together.
8. High-frequency incision knife according to claim 7,
the electrode connecting assembly is characterized by further comprising a sliding block (10), the sliding block (10) is arranged on the handle (1) in a sliding mode, a high-frequency plug (101) electrically connected with the electrode connecting assembly is arranged on the sliding block (10), and the sliding block (10) is suitable for driving the working electrode (9) to move back and forth on the insulating portion (8) through the electrode connecting assembly.
9. High-frequency incision knife according to claim 7,
the insulating part (8) comprises an insulating seat (81) and an outer insulating layer (82); wherein the content of the first and second substances,
the working electrode (9) can be inserted in the insulating seat (81) along the axial direction in a movable manner;
the outer insulating layer (82) wraps the insulating base (81) and the electrode connecting assembly at the same time to fix the insulating base (81).
10. High-frequency incision knife according to claim 7,
the electrode connecting assembly further comprises an electric connector (32) and a spiral spring tube (33) with an insulating layer; wherein the content of the first and second substances,
the electric connector (32) is inserted into the head of the spiral spring tube (33), and the tail of the working electrode (9) is inserted into the electric connector (32);
the spiral spring pipe (33) is connected with the connecting pipe (31).
11. High-frequency incision knife according to claim 7,
the head of the working electrode (9) is straight or O-shaped or D-shaped or T-shaped along the axial section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121792063.7U CN215651490U (en) | 2021-08-03 | 2021-08-03 | High-frequency incision knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121792063.7U CN215651490U (en) | 2021-08-03 | 2021-08-03 | High-frequency incision knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215651490U true CN215651490U (en) | 2022-01-28 |
Family
ID=79983068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121792063.7U Active CN215651490U (en) | 2021-08-03 | 2021-08-03 | High-frequency incision knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215651490U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116421302A (en) * | 2023-06-13 | 2023-07-14 | 杭州好克光电仪器有限公司 | Electric cutting mirror |
| WO2023242407A1 (en) * | 2022-06-17 | 2023-12-21 | Creo Medical Ltd | Interface joint |
-
2021
- 2021-08-03 CN CN202121792063.7U patent/CN215651490U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023242407A1 (en) * | 2022-06-17 | 2023-12-21 | Creo Medical Ltd | Interface joint |
| CN116421302A (en) * | 2023-06-13 | 2023-07-14 | 杭州好克光电仪器有限公司 | Electric cutting mirror |
| CN116421302B (en) * | 2023-06-13 | 2023-09-01 | 杭州好克光电仪器有限公司 | Electric cutting mirror |
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