CN216628683U

CN216628683U - Bipolar papilla incision knife

Info

Publication number: CN216628683U
Application number: CN202122962244.6U
Authority: CN
Inventors: 许荣春
Original assignee: Yangzhou Fartley Medical Instrument Technology Co ltd
Current assignee: Yangzhou Fartley Medical Instrument Technology Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-05-31
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a bipolar nipple incision knife which comprises a handle, a first electrode and a second electrode, wherein a multi-cavity tube is arranged at one end of the handle, a cutting wire channel, a conductive wire channel and a guide wire channel are respectively formed at one end of the multi-cavity tube, the cutting wire channel, the conductive wire channel and the guide wire channel are respectively and movably connected with a cutting wire, a conductive wire and a guide wire, a metal end cap is movably connected at one end of the multi-cavity tube and fixedly connected with the conductive wire, one ends of the cutting wire and the conductive wire are respectively and fixedly connected with the first electrode and the second electrode, a guide wire opening is formed at one end of the multi-cavity tube, the guide wire penetrates through the guide wire opening, the handle comprises a core bar, and sliding grooves are formed in two sides of the core bar. The nipple incision knife can form a current loop when the nipple incision knife is used, a negative plate does not need to be attached to the back of a human body to serve as an electrode, damage to the human body is reduced, the operation is simple, and requirements of people are met.

Description

Bipolar papilla incision knife

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a bipolar nipple incision knife.

Background

The duodenum endoscope lower papilla myxectomy is further developed on the basis of a therapeutic technology of endoscopic retrograde cholangiopancreatography, and is a treatment technology for incising the duodenum papilla sphincter and the common bile duct terminal part by using a high-frequency electric incision knife under an endoscope, EST is an important treatment technology in the field of endoscopes and is also a premise of other endoscope treatments, EST has the advantages of small surgical trauma, quick postoperative recovery, high success rate and the like, and therefore, the EST is gradually widely applied, and the high-frequency incision knife is a necessary instrument in EST surgery.

The existing nipple incision knife mostly has the following defects: the nipple incision knife is mostly a monopole, and during use, a negative plate is required to be attached to the back of a human body to serve as an electrode, so that the human body is easily injured, the operation is inconvenient, and the requirements of people cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a bipolar papillary incision knife.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a bipolar nipple incision sword, includes handle, first electrode and second electrode, the one end of handle is equipped with the multi-chamber pipe, and cutting filament passageway, conducting wire passageway and seal wire passageway have been seted up respectively to the one end of multi-chamber pipe, and swing joint has cutting wire, conducting wire and seal wire in cutting filament passageway, conducting wire passageway and the seal wire passageway respectively, the one end swing joint of multi-chamber pipe has the metal end cap, metal end cap and conducting wire fixed connection, and the one end of cutting wire and conducting wire respectively with first electrode and second electrode fixed connection, the wire mouth has been seted up to the one end of multi-chamber pipe, and the seal wire passes the wire mouth.

As a further scheme of the utility model, the handle comprises a core bar, sliding grooves are formed in two sides of the core bar, a sliding ring is movably connected in each sliding groove, and an end cap is movably connected to one end of the core bar.

As a further proposal of the utility model, one end of the end cap is movably connected with a liquid injection head, and one side of the liquid injection head is provided with a liquid injection port.

As a further scheme of the utility model, one end of the multi-cavity pipe is provided with a liquid channel, and the liquid channel is communicated with the water injection head.

As still a further aspect of the present invention, the first electrode and the second electrode are fixed to one side of the slip ring and the end cap, respectively.

The utility model has the beneficial effects that:

1. according to the nipple cutting device, the first electrode, the second electrode, the cutting wire and the metal end cap are arranged, so that a current loop can be formed when the nipple is cut, a negative plate does not need to be attached to the back of a human body to serve as an electrode, burn to the human body is reduced, and the nipple cutting device is convenient to operate.

2. According to the utility model, through the arrangement of the slip ring, the outer tube and the metal end cap are inserted into the bile duct through the papillary hole during operation, so that the cutting wire is contacted with the papillary, thereby achieving the purpose of papillary incision and reducing the operation time.

3. The utility model can inject the contrast agent into the bile duct through the papillary hole when the papilla is cut through the arrangement of the liquid injection head, the liquid injection port and the liquid channel, and display the internal condition of the bile duct.

Drawings

FIG. 1 is a schematic plan view of a bipolar papillary incision knife according to the present invention;

FIG. 2 is a schematic front sectional view of a bipolar papillary incision knife multi-lumen tube according to the present invention;

fig. 3 is a schematic structural view of a metal end cap and a cutting wire of a multi-cavity tube of a bipolar papillary incision knife according to the present invention.

In the figure: 1. a core bar; 2. a slip ring; 3. an end cap; 4. a liquid injection head; 401. a liquid injection port; 5. a wire guide opening; 6. a first electrode; 7. a second electrode; 8. a multi-lumen tube; 801. cutting a wire channel; 802. a conductive filament channel; 803. a guidewire channel; 804. a liquid channel; 9. cutting the wire; 10. a metal end cap; 11. a conductive filament; 12. a guidewire.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. It should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and their meaning in the context of this patent may be understood by those skilled in the art as appropriate.

Referring to fig. 1-3, a bipolar papilla incision knife comprises a handle, a first electrode 6 and a second electrode 7, wherein a multi-cavity tube 8 is arranged at one end of the handle, a cutting filament channel 801, a conductive filament channel 802 and a guide filament channel 803 are respectively arranged at one end of the multi-cavity tube 8, a cutting filament 9, a conductive filament 11 and a guide filament 12 are respectively inserted into the cutting filament channel 801, the conductive filament channel 802 and the guide filament channel 803, a metal end cap 10 is sleeved at one end of the multi-cavity tube 8, the metal end cap 10 is fixedly connected with the conductive filament 9, one ends of the cutting filament 9 and the conductive filament 11 are respectively fixedly connected with the first electrode 6 and the second electrode 7, a current loop can be formed when the papilla is incised through the design of the first electrode 6, the second electrode 7, the cutting filament 9 and the metal end cap 10, a negative plate does not need to be attached to the back of the human body as an electrode, the burn to the human body is reduced, the operation is simple, satisfy people's demand, wire guide mouth 5 has been seted up to the one end of multi-chamber pipe 8, and wire guide 12 passes wire guide mouth 5, through the design of sliding ring 2, when the operation, inserts human bile duct through the papillary pore with multi-chamber pipe 8 and metal end cap 10, makes cutting wire 9 and papillary contact to reach the purpose that the papillary incised, reduce operation time.

According to the utility model, the handle comprises a core bar 1, sliding grooves are formed in two sides of the core bar 1, a sliding ring 2 is slidably connected in the sliding grooves, one end of the core bar 1 is rotatably connected with an end cap 3, one end of the end cap 3 is rotatably connected with an injection head 4, one side of the injection head 4 is provided with an injection port 401, one end of the multi-cavity tube 8 is provided with a liquid channel 804, the liquid channel 804 is communicated with the injection head 4, through the design of the injection head 4, the injection port 401 and the liquid channel 804, when a nipple is cut, a contrast agent can be injected conveniently, the internal condition of a bile duct is displayed, the safety of an operation is ensured, and the first electrode 6 and the second electrode 7 are respectively fixed on one side of the sliding ring 2 and one side of the end cap 3.

The working principle is as follows: when the medical instrument is used, the first electrode 6 and the second electrode 7 are firstly connected with an external high-frequency electric knife, then the power supply of the high-frequency electric knife is switched on, next, the core rod 1 is held by a hand and the sliding ring 2 is pulled, and during operation, the multi-cavity tube 8 and the metal end cap 10 are inserted into the bile duct through a papillary hole so that the cutting wire 9 is contacted with the papillary. At this moment, the current generated by the high-frequency electrotome is transmitted to the cutting wire 9 through the first electrode 6, then transmitted to the metal end cap 10 through the nipple, the metal end cap 10 transmits the current to the second electrode 7, and finally returns to the high-frequency electrotome, so that a current loop can be formed, and finally the function of cutting the nipple by the electrotome is completed.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A bipolar papilla incision knife comprises a handle, a first electrode (6) and a second electrode (7), it is characterized in that a multi-cavity tube (8) is arranged at one end of the handle, a cutting wire channel (801), a conductive wire channel (802) and a guide wire channel (803) are respectively arranged at one end of the multi-cavity tube (8), a cutting wire (9), a conductive wire (11) and a guide wire (12) are respectively and movably connected in the cutting wire channel (801), the conductive wire channel (802) and the guide wire channel (803), one end of the multi-cavity tube (8) is movably connected with a metal end cap (10), the metal end cap (10) is fixedly connected with a conductive wire (11), one end of the cutting wire (9) and one end of the conductive wire (11) are respectively fixedly connected with the first electrode (6) and the second electrode (7), one end of the multi-cavity tube (8) is provided with a guide wire opening (5), and a guide wire (12) penetrates through the guide wire opening (5).

2. The bipolar papilla cutting knife according to claim 1, wherein the handle comprises a core bar (1), sliding grooves are formed in two sides of the core bar (1), a sliding ring (2) is movably connected in each sliding groove, and an end cap (3) is movably connected to one end of the core bar (1).

3. The bipolar papilla cutting knife according to claim 2, wherein one end of the end cap (3) is movably connected with a liquid injection head (4), and one side of the liquid injection head (4) is provided with a liquid injection port (401).

4. A bipolar papilla cutting knife according to claim 3, wherein one end of the multi-cavity tube (8) is provided with a liquid passage (804), and the liquid passage (804) is communicated with the liquid injection head (4).

5. A bipolar papillary incision knife according to claim 1, characterized in that the first electrode (6) and the second electrode (7) are fixed on one side of the slip ring (2) and the end cap (3), respectively.