CN220001905U - Medical high-frequency electric incision knife - Google Patents

Abstract

The utility model belongs to the technical field of high-frequency electric incision knives, and particularly relates to a medical high-frequency electric incision knife which comprises a core rod, wherein a slip ring is slidingly connected inside the core rod, a luer connector is arranged at the upper end of the slip ring, a boosting pipe is arranged at the lower end of the luer connector in a communicating way, an electrode connecting part is arranged at the left end of the core rod, a protective sleeve pipe is arranged at the left end of the electrode connecting part, an outer pipe is arranged inside the protective sleeve pipe, the boosting pipe penetrates through the electrode connecting part and stretches into the outer pipe, a core pipe is arranged in the middle of the outer pipe, an end cap is arranged at the left end of the outer pipe, a mandrel is fixedly connected with the right end of the boosting pipe, a transmission piece is arranged on the mandrel, a hollow cutter bar is fixedly arranged on the transmission piece, a cutter head is arranged at the left end of the hollow cutter bar, and a T-shaped ceramic head is arranged at the left end of the cutter head.

Description

Medical high-frequency electric incision knife

Technical Field

The utility model belongs to the technical field of high-frequency electric incision knives, and particularly relates to a medical high-frequency electric incision knife.

Background

Endoscopic Submucosal Dissection (ESD) refers to a minimally invasive technique of completely dissecting diseased mucosa from submucosal layer under an endoscope, was first initiated in japan at the end of the 90 th century and applied to clinic, and is a selective diagnostic or radical operation. The main purpose of ESD is to diagnose and treat early digestive tract tumor, which has the advantage of one-time complete excision of superficial lesions with certain area, but has high technical requirement and great difficulty. After the high-frequency electric incision knife enters the human body through the endoscope forceps channel, if the sight of the lesion part is not clear, the high-frequency electric incision knife is withdrawn from the endoscope forceps channel, then liquid is injected into the lesion part by adopting a liquid injection instrument, and the high-frequency electric incision knife is re-introduced into the endoscope forceps channel for operation after the high-frequency electric incision knife is visible, so that the problems of complex operation and operation time waste exist, and the improvement is needed.

Disclosure of Invention

The purpose of the utility model is that: the utility model aims at providing a medical high frequency electric incision sword, can conveniently adjust the position of empty cutter arbor and tool bit, and then more convenient operation when excision to pathological change part, hollow cutter arbor still has the effect of injection concurrently simultaneously, need not to change the apparatus when needs the injection, practices thrift operating time.

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

the utility model provides a medical high frequency electric incision sword, includes the core bar, rectangular channel has been seted up to the core bar upper end, rectangular channel inside sliding connection has the sliding ring, luer is installed to the sliding ring upper end, luer lower extreme intercommunication is equipped with the boost tube, electrode connecting portion is installed to the core bar left end, the protective sleeve pipe is installed to electrode connecting portion left end, protective sleeve pipe internally mounted has the outer tube, the boost tube runs through electrode connecting portion and stretches into inside the outer tube, outer tube mid-mounting has the core tube the end cap is installed to the outer tube left end, boost tube right-hand member fixedly connected with dabber, the driving medium is installed to the dabber, driving medium fixed mounting has hollow cutter arbor, the tool bit is installed to hollow cutter arbor left end, T type ceramic head is installed to the tool bit left end, tool bit and T type ceramic head all seted up with hollow cutter arbor assorted through-hole.

The electrode connecting portion comprises a fixed head fixedly connected with the core rod, the upper end of the fixed head is fixedly connected with a protection cylinder, an electrode joint is clamped in the protection cylinder, and a spring abutted to the boosting pipe is installed at the output end of the electrode joint.

The transmission piece comprises a connecting pipe fixedly installed with the mandrel, a communication groove is formed in the connecting pipe, and the right end of the hollow cutter bar is fixedly installed with the connecting pipe.

The connecting pipe outside fixedly connected with buckle spare, the draw-in groove with buckle spare joint is seted up to the inside left side of core pipe.

The right end of the core rod is fixedly provided with a first handle ring, and the upper side and the lower side of the slip ring are fixedly provided with second handle rings.

The outside joint of end cap has fixed pipe, fixed pipe and the inboard joint of outer tube.

The utility model can conveniently adjust the positions of the hollow cutter bar and the cutter head, thereby being more convenient to operate when the lesion part is resected, and simultaneously, the hollow cutter bar also has the injection function, and the device does not need to be replaced when the injection is needed, so that the operation time is saved.

Drawings

The utility model may be further illustrated by means of non-limiting examples given in the accompanying drawings.

FIG. 1 is a schematic view of a medical high-frequency electric incision knife according to the present utility model;

FIG. 2 is a schematic cross-sectional view of a medical high-frequency electric incision knife according to the present utility model;

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

fig. 4 is an enlarged schematic view of the structure at B in fig. 2.

The main reference numerals are as follows:

core bar 1, slip ring 11, luer 12, booster 13, mandrel 131, core tube 137, electrode connection 14, sheath tube 15, outer tube 16, end cap 17, hollow cutter bar 18, cutter head 19, T-shaped ceramic head 20, through hole 21, fixed head 22, protective tube 23, electrode connector 24, spring 25, connection tube 26, buckle 261, communication groove 27, first handle ring 28, second handle ring 29.

Detailed Description

In order that those skilled in the art will better understand the present utility model, the following technical scheme of the present utility model will be further described with reference to the accompanying drawings and examples.

Example 1:

as shown in fig. 1-4, the medical high-frequency electric incision knife comprises a core rod 1, a rectangular groove is formed in the upper end of the core rod 1, a slip ring 11 is connected in the rectangular groove in a sliding mode, a luer connector 12 is arranged at the upper end of the slip ring 11, a boosting tube 13 is arranged at the lower end of the luer connector 12 in a communicating mode, an electrode connecting part 14 is arranged at the left end of the core rod 1, a protective sleeve 15 is arranged at the left end of the electrode connecting part, an outer tube 16 is arranged in the protective sleeve 15, the boosting tube 13 penetrates through the electrode connecting part 14 and stretches into the outer tube 16, a core tube 137 is arranged in the middle of the outer tube 16, an end cap 17 is arranged at the left end of the outer tube 16, a mandrel 131 is fixedly connected to the right end of the boosting tube 13, a transmission piece is arranged on the mandrel 131, a hollow cutter bar 18 is fixedly arranged on the transmission piece, a cutter head 19 is arranged at the left end of the hollow cutter bar 18, T-shaped ceramic heads 20 are arranged at the left end of the cutter head 19, and through holes 21 matched with the hollow cutter bar 18 are formed in the cutter head 19 and the T-shaped ceramic heads 20.

Observing pathological tissue of human body under the guidance of an endoscope, connecting a high-frequency host machine with an electrode connecting part 14 to input high-frequency current, connecting a liquid delivery device such as a syringe with a luer connector 12, enabling the device to enter the human body through an endoscope forceps channel, enabling a cutter bit 19 to be abutted with an end cap 17 in an initial state, avoiding mistakenly touching other parts when extending into the human body, enabling a core bar 1 to be relatively fixed with a slip ring 11, then driving the slip ring 11 to slide left and right in a rectangular groove, further enabling the slip ring 11 to drive a mandrel 131 to move left and right, enabling the mandrel 131 to drive a hollow cutter bar 18 to move left and right through a transmission part when the mandrel 131 moves left and right, further enabling the cutter bit 19 and a T-shaped ceramic head 20 to stretch and adjust positions, enabling the pathological part to be located between the cutter bit 19 and the end cap 17, enabling the hollow cutter bar 18 to directly contact the pathological part, or the slip ring 11 is driven to move rightwards to drive the hollow cutter bar 18 to move rightwards so as to enable the cutter bit 19 to contact with a lesion position, thus, high-frequency current which is connected in advance is transmitted to the boosting pipe 13 through the electrode connecting part 14, the boosting pipe 13 is fixedly arranged with the mandrel 131, so that high-frequency current is transmitted to a transmission part through the mandrel 131 and then transmitted to the hollow cutter bar 18 and the cutter bit 19, the hollow cutter bar 18 and the cutter bit 19 with high-frequency current can cut a lesion part, the core bar 1 can be driven to rotate at the electrode connecting part 14 during cutting, the lesion part is conveniently aligned, meanwhile, the T-shaped ceramic head 20 plays an insulating role, the cutter bit 19 is prevented from contacting a part which does not need cutting during cutting, injection liquid can be communicated with the luer connector 12 through a liquid-delivering device during injection, the injection liquid can enter the boosting pipe 13 through the inside of the core tube 137, thus, the injection liquid can enter the transmission part through the outer tube 16 and then enter the hollow cutter bar 19, and the injection liquid can flow out of the middle of the T-shaped ceramic head 20 at the tail end of the hollow cutter bar 19 for injection.

The utility model can conveniently adjust the positions of the hollow cutter bar 18 and the cutter head 19, thereby being more convenient to operate when the lesion part is resected, and simultaneously the hollow cutter bar 18 also has the function of conveying injection liquid, and does not need to replace instruments when injection is needed, thereby saving operation time.

Example 2:

the electrode connecting part 15 comprises a fixed head 22 fixedly connected with the core bar 1, a protective cylinder 23 is fixedly connected to the upper end of the fixed head 22, an electrode joint 24 is clamped in the protective cylinder 23, and a spring 25 which is abutted to the boosting pipe 13 is arranged at the output end of the electrode joint 24; when the high-frequency host is connected, the output end is connected with the electrode joint 24, so that high-frequency current is input to the electrode joint 24, and then the electrode joint 24 transmits high-frequency electricity to the spring 25, the spring 25 is abutted with the boosting pipe 13, so that the high-frequency electricity can be input to the boosting pipe 13, the input end of the high-frequency electric equipment can be protected by the protection cylinder 23, and meanwhile, the electrode joint 24 can be detached from the protection cylinder 23 through the barbs to be replaced, and the spring 25 can be replaced, so that the practicability is improved.

The transmission part comprises a connecting pipe 26 fixedly arranged with a mandrel 131, the connecting pipe 26 is provided with a communication groove 27, and the right end of the hollow cutter bar 18 is fixedly arranged with the connecting pipe 26; the connecting pipe 26 is slidably connected inside the outer pipe 16 so that the mandrel 131 drives the connecting pipe 26 and the hollow cutter bar 18 to move together when moving, and the hollow cutter bar 18 is stored or moved, and since the communicating groove 27 is positioned in the middle of the mandrel 131 and the hollow cutter bar 18, the injection liquid enters the communicating groove 27 through the outer pipe 16 when being input, and then is introduced into the hollow cutter bar 18.

The outer side of the connecting pipe 26 is fixedly connected with a clamping piece 261, and the left side of the inner part of the core pipe 137 is provided with a clamping groove which is clamped with the clamping piece 261; the buckle spare 261 is not connected with the draw-in groove under the initial condition, and then makes hollow cutter arbor 18 be located inside the outer tube 16, will make hollow cutter arbor 18 outwards move at the in-process of connecting pipe 26 to the draw-in groove motion, will have certain resistance when the buckle spare 261 runs into hollow cutter arbor 18 when the draw-in groove is met, and then reminds the operator that hollow cutter arbor 18 has stretched out, and then continuously drives the motion of buckle spare 261 and will with the draw-in groove joint, and then makes hollow cutter arbor 18 and tool bit 19 play fixed effect, conveniently resects pathological change portion.

The right end of the core bar 1 is fixedly provided with a first handle ring 28, the upper side and the lower side of the slip ring 11 are fixedly provided with a second handle ring 29, and the first handle ring 28 and the second handle ring 29 can be conveniently held by an operator so as to drive the slip ring 11 to move.

The outer side of the end cap 17 is clamped with a fixed pipe 30, and the fixed pipe 30 is clamped with the inner side of the outer pipe 16; this allows the end cap 17 to be removed.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims of this utility model, which are within the skill of those skilled in the art, can be made without departing from the spirit and scope of the utility model disclosed herein.

Claims (6)

1. The utility model provides a medical high frequency electricity incising knife, includes core bar, its characterized in that: rectangular grooves are formed in the upper ends of the core rods, sliding rings are connected inside the rectangular grooves in a sliding mode, luer connectors are arranged at the upper ends of the sliding rings, boosting tubes are arranged at the lower ends of the luer connectors in a communicating mode, electrode connecting portions are arranged at the left ends of the core rods, protective sleeves are arranged at the left ends of the electrode connecting portions, outer tubes are arranged in the protective sleeves in a mounted mode, the boosting tubes penetrate through the electrode connecting portions and extend into the outer tubes, core tubes are arranged in the middle of the outer tubes in a mounted mode, end caps are arranged at the left ends of the outer tubes, mandrel shafts are fixedly connected to the right ends of the boosting tubes, driving pieces are arranged on the mandrels, hollow cutter bars are fixedly arranged on the driving pieces, cutter heads are arranged at the left ends of the hollow cutter bars, T-shaped ceramic heads are arranged at the left ends of the cutter heads, and through holes matched with the hollow cutter bars are formed in the cutter heads and the T-shaped ceramic heads.

2. A medical high frequency electric incision knife according to claim 1, wherein: the electrode connecting portion comprises a fixed head fixedly connected with the core rod, the upper end of the fixed head is fixedly connected with a protection cylinder, an electrode joint is clamped in the protection cylinder, and a spring abutted to the boosting pipe is installed at the output end of the electrode joint.

3. A medical high frequency electric incision knife according to claim 1, wherein: the transmission piece comprises a connecting pipe fixedly installed with the mandrel, a communication groove is formed in the connecting pipe, and the right end of the hollow cutter bar is fixedly installed with the connecting pipe.

4. A medical high frequency electric incision knife according to claim 3, wherein: the connecting pipe outside fixedly connected with buckle spare, the draw-in groove with buckle spare joint is seted up to the inside left side of core pipe.

5. A medical high frequency electric incision knife according to claim 1, wherein: the right end of the core rod is fixedly provided with a first handle ring, and the upper side and the lower side of the slip ring are fixedly provided with second handle rings.

6. A medical high frequency electric incision knife according to claim 1, wherein: the outside joint of end cap has fixed pipe, fixed pipe and the inboard joint of outer tube.