CN213406254U - Multifunctional high-frequency cutter for endoscope - Google Patents

Multifunctional high-frequency cutter for endoscope Download PDF

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Publication number
CN213406254U
CN213406254U CN202021331404.6U CN202021331404U CN213406254U CN 213406254 U CN213406254 U CN 213406254U CN 202021331404 U CN202021331404 U CN 202021331404U CN 213406254 U CN213406254 U CN 213406254U
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China
Prior art keywords
handle
sheath tube
spring guide
tube
shaped knife
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Active
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CN202021331404.6U
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Chinese (zh)
Inventor
胡晓刚
韩贯通
高崇
完颜宏涛
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Anrei Medical HZ Co Ltd
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Anrei Medical HZ Co Ltd
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Abstract

The utility model discloses a multifunctional high-frequency cutter for an endoscope, which comprises a sheath tube, an I-shaped knife, an electrocoagulation head, a first handle, a second handle, an electrode holder and an injection interface; the rear end of the sheath tube is fixedly connected with the second handle, a spring guide tube penetrates through the sheath tube, the rear end of the spring guide tube is fixedly connected with a first handle, the first handle moves forwards and backwards and drives the spring guide tube to move forwards and backwards, an outer sheath tube is further sleeved at the front part of the sheath tube, an electric coagulation head and an I-shaped knife penetrate through the front part of the outer sheath tube, and the rear end of the I-shaped knife is fixedly connected with the spring guide tube; the I cutter is provided with an inner cavity and communicated with the spring guide pipe; the spring guide tube moves back and forth and drives the I-shaped knife to extend out of and retract back from the front end of the outer sheath tube. The electric appliance integrates the functions of cutting, electrocoagulation and injection needle, so as to realize three-in-one function, and doctors can perform corresponding operation according to the requirements, thus saving the time for replacing the appliance.

Description

Multifunctional high-frequency cutter for endoscope
Technical Field
The utility model relates to the technical field of medical equipment, more specifically say, it relates to a multi-functional high frequency cutter for endoscope.
Background
With the development of endoscopic technology and other related technologies, treatment and screening of early digestive tract cancer under endoscope has become the treatment of the first choice. The conventional digestive tract early cancer treatment process at present often needs a plurality of instruments to be matched. For example: marking or injecting the lesion position by using an injection needle to enable the lesion position to bulge, then cutting or stripping by using an electric knife, and finally suturing or stopping bleeding by using a hemostatic clamp or the electric knife or the injection needle. The operation process is complicated, the instruments are frequently replaced, the operation efficiency is low, and the requirement on the professional skills of doctors is high; the replacement of the instruments increases patient pain and the cost of the surgery is relatively high.
Chinese patent application publication No. CN108523986A discloses a high-frequency cutter with an injection needle for an endoscope, which needs to lock a double-finger handle by a locking member when operating, so as to avoid accidental sliding of an axial electrode, which brings inconvenience to the operation of medical care personnel; if the locking piece is not locked, when the double-finger handle or the sliding block is moved, a linkage phenomenon can be generated, further misoperation can occur, and accidental injury can be brought to a patient; meanwhile, the axial electrode and the needle tube are arranged in the sheath tube side by side, so that the radial size of the sheath tube is larger.
The application publication number is CN109771027A discloses a multifunctional incision knife, which relates to a multifunctional incision knife comprising a conductive liquid injection knife head, a ring sleeve, a pull rope, an outer tube component, a sliding ring and an electrode plug core rod and having the functions of peeling off and injecting water before and during an endoscopic mucosa peeling operation.
Chinese patent with publication number CN209074869U discloses a novel mucosa incision knife, which relates to a novel mucosa incision knife integrating a mucosa incision knife and an injection needle into different lumens of a double-lumen catheter, thereby realizing the functions of the injection needle and the mucosa incision knife.
Chinese patent No. CN209186932U discloses an endoscope high-frequency electrotome with a liquid injection structure, and relates to an endoscope high-frequency electrotome which uses a gap between a cutter body and a far-end limit ring to form a liquid injection channel to achieve an injection function.
Chinese patent No. CN209186930U discloses a high-frequency electric knife for endoscope with double knife heads, which relates to a high-frequency electric knife for endoscope with double knife heads, wherein the damping structure between two knife heads controls the contraction movement of the other knife head.
Chinese patent with the publication number of CN209916189U discloses a biliary tract mucosa electrocoagulation ball, which relates to a biliary tract mucosa electrocoagulation ball, and an electrocoagulator is added at the front end of the device to timely perform electrocoagulation hemostasis in an operation.
US patent No. US20190298435a1 relates to a high frequency electrotome device with injection function connected to an electrode with an electrode lumen at the distal end of the shaft by a shaft containing a central lumen and the electrode containing one or more differently angled electrode lumen exits.
The above patents still have some drawbacks including:
1) the functions are not diversified enough, and the multifunctional requirements of doctors on the high-frequency electric instruments cannot be met;
2) when the injection or the electrotomy function is performed, some unnecessary operations are required, so that the operation burden of a doctor is increased;
3) the structure is more complicated, and manufacturing cost is high.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model provides an endoscope is with multi-functional high frequency cutter, this electrical apparatus have integrated cutting, electricity congeals and has gone into the syringe needle function and realized trinity, and the doctor can carry out corresponding operation as required, so saved the time of changing the apparatus, improved operation efficiency.
In order to achieve the above purpose, the utility model provides a following technical scheme: a multifunctional high-frequency cutter for an endoscope comprises a sheath tube, an I-shaped cutter, an electrocoagulation head, a first handle, a second handle and an electrode holder;
the rear end of the sheath tube is fixedly connected with the second handle, and a spring guide tube is arranged in the sheath tube in a penetrating manner; the second handle is provided with a first handle in a sliding manner, the rear end of the spring guide pipe is fixedly connected with the first handle, the first handle moves forwards and backwards on the second handle and drives the spring guide pipe to move forwards and backwards relative to the sheath pipe, and meanwhile, the spring guide pipe is electrically connected with the connector on the electrode holder;
the outer sheath tube is further sleeved outside the sheath tube, the I-shaped knife and the electrocoagulation head are arranged at the front part of the outer sheath tube in a penetrating mode, the I-shaped knife penetrates through the electrocoagulation head, the rear end of the I-shaped knife is fixedly connected with the front end of the spring guide tube, and the spring guide tube moves back and forth and drives the I-shaped knife to extend out of and retract back from the front end of the outer sheath tube;
the electrocoagulation head is fixed at the front end of the sheath tube, the I-shaped knife is electrically connected with the electrocoagulation head, and the sheath tube slides backwards relative to the sheath tube to expose the electrocoagulation head.
Preferably, a sleeve is further fixed to the front end of the second handle.
Preferably, the cutter I is provided with an inner cavity and is communicated with an inner cavity channel of the spring guide pipe; the first handle is also fixed with an injection interface, and an inner cavity channel of the spring guide pipe is communicated with the injection interface.
Preferably, a sheath handle is fixed to a rear end of the sheath tube, and the sheath handle is fitted to the sheath tube.
Preferably, the spring guide pipe is coated with a plastic coating layer.
Preferably, the second handle comprises a handle main body and a thumb ring fixed at the rear end of the handle main body; the first handle is a double-finger ring structure.
Preferably, a ceramic pad is further fixed at the front end of the electrocoagulation head, and the I-shaped knife penetrates through the ceramic pad.
Preferably, the I knife is provided with a radial electrode which is electrically connected with the electrocoagulation head, and the electrocoagulation head is connected with the I knife through the radial electrode.
Preferably, the radial electrode is fixed on the I-knife; alternatively, the radial electrodes are fixed to the electrocoagulation head.
Preferably, the electrode holder is connected with the second handle through clamping, interference fit or threads.
To sum up, the utility model discloses following beneficial effect has:
1. the spring guide pipe has the functions of a guide pipe and electric conduction, namely, the spring guide pipe, the electrode and the I knife are communicated to form an electric loop during injection; during cutting, the spring guide pipe, the injection interface and the inner cavity of the I-shaped knife are communicated to form an injection channel; therefore, on one hand, the liquid injection and the electric cutting function are reversely moved through the corresponding driving piece, so that the accidental starting of the standby function can be completely eliminated, and the accidental injury to a patient or the interference to the operation process can be avoided; meanwhile, unnecessary actions in the operation of a doctor can be reduced, and the operation efficiency is improved; secondly, the phenomenon of misoperation caused by linkage of the same-direction movement of a plurality of functional parts can be avoided;
2. the I-shaped knife penetrates through the electrocoagulation head, and the electrocoagulation head penetrates through the front end of the sheath tube and is fixedly connected with the sheath tube, so that the radial size of the sheath tube can be reduced;
3. the high-frequency electric appliance has a simpler internal structure and low manufacturing cost.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view of the insertion section of the high-frequency electric instrument;
FIG. 3 is a schematic view of the I-shaped knife according to the present invention in an operating state;
FIG. 4 is a schematic view of the electrocoagulation head of the present invention in operation.
Reference numerals: 1. a thumb ring; 2. a second handle; 3. a first handle; 4. an injection port; 5. an electrode holder; 6. a connector; 7. a sleeve; 8. a sheath tube; 9. a sheath handle; 10. an outer sheath tube; 11. a ceramic head; 12. i, cutting; 13. a radial electrode; 15. a ceramic pad; 16. a spring draft tube; 17. coating a plastic layer; 18. an electrocoagulation head.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The embodiment discloses a multifunctional high-frequency cutter for an endoscope, which comprises a sheath tube 8, an I-shaped knife 12, an electrocoagulation head 18, a first handle 3, a second handle 2, an electrode holder 5 and an injection interface 4, as shown in fig. 1 to 4; the electrode holder 5 is provided with a connector 6, and the electrode holder 5 is arranged at the front end of the second handle 2 and is connected with the second handle 2 through clamping, interference fit or threads; in addition, the injection interface 4 is fixed on the first handle 3; the rear end of the sheath tube 8 is fixedly connected with the second handle 2, a spring guide tube 16 penetrates through the sheath tube 8, the spring guide tube 16 is simultaneously coated with a plastic coating layer, the second handle is provided with a first handle in a sliding manner, the rear end of the spring guide tube 16 is fixedly connected with the first handle 3, the first handle 3 moves forwards and backwards on the second handle 2 and drives the spring guide tube 16 to move forwards and backwards relative to the sheath tube 8, meanwhile, the spring guide tube 16 is electrically connected with the connector 6 on the electrode holder 5, and an inner cavity channel of the spring guide tube 16 is communicated with the injection interface 4; an outer sheath tube 10 is further sleeved outside the sheath tube 8, an electrocoagulation head 18 and an I-shaped knife 12 are arranged at the front part of the outer sheath tube 10 in a penetrating mode, the I-shaped knife 12 penetrates through the electrocoagulation head 18, so that the radial size of the sheath tube 8 can be further reduced, a ceramic pad 15 playing a role in protection is further fixed at the front end of the electrocoagulation head 18, the I-shaped knife 12 penetrates through the ceramic pad 15, and the rear end of the I-shaped knife 12 is fixedly connected with the front end of the spring guide tube 16; the electrocoagulation head 18 is fixed at the front end of the sheath tube 8, the front end of the I-shaped knife 12 is also provided with a radial electrode 13 which is electrically connected with the electrocoagulation head 18, and the electrocoagulation head 18 is electrically connected with the I-shaped knife 12 through the radial electrode 13; sliding the outer sheath 10 backwards relative to the sheath 8 exposes the electrocoagulation head 18; meanwhile, the I-shaped knife 12 is provided with an inner cavity and communicated with the spring guide pipe 16; the spring catheter 16 moves back and forth and drives the I-knife 12 to extend and retract from the front end of the outer sheath 10.
Injection needle mode: the first handle 3 is pushed forwards along the second handle 2, the first handle 3 drives the spring guide tube 16 and the I-shaped knife 12 to move forwards, so that the I-shaped knife 12 extends out of the front end of the outer sheath tube 10 to reach a working state, at the moment, the injection interface 4, an inner cavity channel of the spring guide tube 16 and an inner cavity of the I-shaped knife 12 are communicated to form a channel, and the injector is connected to the injection interface 4 to perform injection operation;
high-frequency I knife mode: the first handle 3 is pushed forwards along the second handle 2, the first handle 3 drives the spring guide pipe 16 and the I-shaped knife 12 to move forwards, and the I-shaped knife 12 extends out of the front end of the outer sheath tube 10 to reach a working state; at this time, the connector 6, the spring guide pipe 16 and the I-shaped knife 12 form a connecting circuit to electrically connect the high frequency to the connector 6, and the I-shaped knife 12 performs cutting operation;
electrocoagulation mode: in the state that the I-shaped knife 12 is completely retracted, the outer sheath tube 10 is pulled backwards along the sheath tube 8, so that the electrocoagulation head 18 is exposed from the front end of the outer sheath tube 10 and is in the working state of the electrocoagulation head 18; at the moment, the connector 6, the spring guide tube 16, the I-shaped knife 12, the radial electrode 13 and the electrocoagulation head 18 form a connecting circuit; the high frequency electrical connection is made to the connector 6 to perform the electrocoagulation head 18 electrocoagulation hemostasis operation.
The instrument integrates the functions of an I-shaped knife 12, an electrocoagulation head 18 and an injection needle, realizes three-in-one, and can be used for performing corresponding operations as required by doctors, namely, performing electrocoagulation hemostasis operation; physiological saline can be injected to lift the focus part; can also be used for cutting and stripping mucosa tissue; therefore, the time for replacing the instrument is saved, the operation efficiency is improved, and the pain of the patient is reduced to the maximum extent.
In the technical scheme of the application, the spring guide tube 16 has the functions of a guide tube and electric conduction, namely, the spring guide tube 16, the connector 6 on the electrode holder 5 and the I-shaped knife 12 are connected to form an electric loop during cutting; during injection, an inner cavity channel of the spring guide tube 16, the injection interface 4 and an inner cavity of the I-shaped knife 12 are communicated to form an injection channel; therefore, on one hand, the liquid injection and the electric cutting function are reversely moved through the corresponding driving piece, so that the accidental starting of the standby function can be completely eliminated, and the accidental injury to a patient or the interference to the operation process can be avoided; meanwhile, unnecessary actions in the operation of a doctor can be reduced, and the operation efficiency is improved; secondly, the phenomenon of misoperation caused by linkage of the same-direction movement of a plurality of functional parts can be avoided; on the other hand, the radial dimension of the sheath 8 can be reduced, and the internal structure of the instrument is simpler and the manufacturing cost is low.
Further, a sleeve 7 is fixed at the front end of the second handle 2, and the outer sheath tube 10 slides backwards to abut against the sleeve 7 and expose the electrocoagulation head 18; meanwhile, the rear end of the sheath tube 10 is fixed with a sheath handle 9, the sheath handle 9 is sleeved on the sheath tube 8, and the sheath handle 9 moves backwards and drives the sheath tube 10 to move backwards relative to the sheath tube 8.
In addition, the second handle 2 comprises a handle main body and a thumb ring 1 fixed at the rear end of the handle main body; the first handle 3 is a double-finger ring structure, so that the doctor can conveniently operate with one hand.
The directions given in the present embodiment are merely for convenience of describing positional relationships between the respective members and the relationship of fitting with each other. It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A multifunctional high-frequency cutter for an endoscope comprises a sheath tube (8), an I-shaped cutter (12), an electrocoagulation head (18), a first handle (3), a second handle (2) and an electrode holder (5); the method is characterized in that:
the rear end of the sheath tube (8) is fixedly connected with the second handle (2), and a spring guide tube (16) penetrates through the sheath tube (8); the second handle (2) is provided with a first handle (3) in a sliding manner, the rear end of the spring guide pipe (16) is fixedly connected with the first handle (3), the first handle (3) moves forwards and backwards on the second handle (2) and drives the spring guide pipe (16) to move forwards and backwards relative to the sheath pipe (8), and meanwhile, the spring guide pipe (16) is electrically connected with the connector (6) on the electrode holder (5);
an outer sheath tube (10) is further sleeved outside the sheath tube (8), the I-shaped knife (12) and the electrocoagulation head (18) are arranged at the front part of the outer sheath tube (10) in a penetrating mode, the I-shaped knife (12) penetrates through the electrocoagulation head (18), the rear end of the I-shaped knife (12) is fixedly connected with the front end of a spring guide tube (16), and the spring guide tube (16) moves back and forth and drives the I-shaped knife (12) to extend out of and retract from the front end of the outer sheath tube (10);
the electrocoagulation head (18) is fixed at the front end of the sheath tube (8), the I-shaped knife (12) is electrically connected with the electrocoagulation head (18), and the outer sheath tube (10) slides backwards relative to the sheath tube (8) to expose the electrocoagulation head (18).
2. The multifunctional high-frequency cutting tool for endoscope according to claim 1, wherein: a sleeve (7) is fixed at the front end of the second handle (2).
3. The multifunctional high-frequency cutting tool for endoscope according to claim 2, wherein: the I-shaped knife (12) is provided with an inner cavity and is communicated with an inner cavity channel of the spring guide pipe (16); an injection interface (4) is further fixed on the first handle (3), and an inner cavity channel of the spring guide pipe (16) is communicated with the injection interface (4).
4. The multifunctional high-frequency cutting tool for endoscope according to claim 2, wherein: the rear end of the sheath tube (10) is fixed with a sheath handle (9), and the sheath handle (9) is sleeved on the sheath tube (8).
5. The multifunctional high-frequency cutting tool for endoscope according to claim 4, wherein: the spring guide pipe (16) is coated with a plastic coating layer.
6. The multifunctional high-frequency cutting tool for endoscope according to claim 1, wherein: the second handle (2) comprises a handle main body and a thumb ring (1) fixed at the rear end of the handle main body; the first handle (3) is of a double-finger ring structure.
7. The multifunctional high-frequency cutting tool for endoscope according to claim 1, wherein: a ceramic pad (15) is further fixed at the front end of the electrocoagulation head (18), and the I-shaped knife (12) penetrates through the ceramic pad (15).
8. The multifunctional high-frequency cutting tool for endoscope according to claim 1, wherein: the I knife (12) is provided with a radial electrode (13) which is electrically connected with the electrocoagulation head (18), and the electrocoagulation head (18) is connected with the I knife (12) through the radial electrode (13).
9. The multifunctional high-frequency cutting tool for endoscope according to claim 8, wherein: the radial electrode is fixed on the I-shaped knife (12); alternatively, the radial electrodes are fixed to the electrocoagulation head (18).
10. The multifunctional high-frequency cutting tool for endoscope according to claim 1, wherein: the electrode holder (5) is connected with the second handle (2) through clamping, interference fit or threads.
CN202021331404.6U 2020-07-08 2020-07-08 Multifunctional high-frequency cutter for endoscope Active CN213406254U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021331404.6U CN213406254U (en) 2020-07-08 2020-07-08 Multifunctional high-frequency cutter for endoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021331404.6U CN213406254U (en) 2020-07-08 2020-07-08 Multifunctional high-frequency cutter for endoscope

Publications (1)

Publication Number Publication Date
CN213406254U true CN213406254U (en) 2021-06-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022007734A1 (en) * 2020-07-08 2022-01-13 安瑞医疗器械(杭州)有限公司 High frequency electrical instrument for use with endoscope
WO2022007733A1 (en) * 2020-07-08 2022-01-13 安瑞医疗器械(杭州)有限公司 Multifunctional high-frequency cutter for endoscope

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022007734A1 (en) * 2020-07-08 2022-01-13 安瑞医疗器械(杭州)有限公司 High frequency electrical instrument for use with endoscope
WO2022007733A1 (en) * 2020-07-08 2022-01-13 安瑞医疗器械(杭州)有限公司 Multifunctional high-frequency cutter for endoscope

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CB03 Change of inventor or designer information

Inventor after: Hu Xiaogang

Inventor after: Han Guantong

Inventor after: Gao Song

Inventor after: Wan Yan Hongtao

Inventor before: Hu Xiaogang

Inventor before: Han Guantong

Inventor before: Gao Chong

Inventor before: Wan Yan Hongtao