WO2018126374A1

WO2018126374A1 - Smoke evacuation tube

Info

Publication number: WO2018126374A1
Application number: PCT/CN2017/070221
Authority: WO
Inventors: 黄海军; 王清华; 尹艳辉; 刘天国; 晁宇
Original assignee: 浙江迈德实达医疗科技有限公司
Priority date: 2017-01-05
Filing date: 2017-01-05
Publication date: 2018-07-12

Abstract

A smoke evacuation tube, comprising a smoke evacuation tube base body (1) and a smoke evacuation tube cavity (2). Two ends of the smoke evacuation tube base body are detachably connected with an electric scalpel fixing end base (11) used for fixing an electric scalpel (3) and a connection end base (12), respectively; the electric scalpel fixing end base and the connection end base are connected by means of a conductive connection component (4) provided in the smoke evacuation tube cavity. Also disclosed is an electrosurgical scalpel based on the smoke evacuation tube. The solution facilitates the casting and molding of a smoke evacuation tube, saves raw materials, reduces the costs, and improves the smoke evacuation effect.

Description

a smoking pipe

Technical field

The utility model belongs to the technical field of medical device manufacturing, in particular to a smoking pipe.

Background technique

At present, in order to keep the electric knife energized, the smoking pipe is arranged in two layers, one layer is a plastic pipe, and a metal conductive layer is arranged in the plastic pipe layer. This kind of structure makes the waste of resources in production more serious, and the whole production process is more difficult. Moreover, the base of the end fixed electric knife is directly disposed in the smoking pipe, resulting in a small cross-sectional area of the entire smoking pipe, which may cause the absorption of the smoke to not completely affect the efficiency and accuracy of the operation.

Utility model content

The purpose of the utility model is to facilitate the pouring and forming of the smoking pipe, save the necessary raw materials, reduce the cost, and improve the smoking effect.

The above technical object of the present invention is achieved by the following technical solutions: a smoking pipe, comprising a smoking pipe base body and a smoking pipe cavity, wherein the two ends of the smoking pipe base body are detachably connected with an electric knife fixed by an electric knife The end seat and the connecting end seat; the electric knife fixed end seat and the connecting end seat are connected by a conductive connecting member disposed in the smoking tube cavity.

The detachable connection of the electrosurgical fixed end seat and the connecting end seat, as well as the installation and disassembly of the conductive connecting parts, requires a specific order. If other types of smoking pipes are used after installation, the first must be the conductive connecting parts and the electric knife. The fixed end seat is assembled into a whole body, and the electric knife fixed end seat is fastened to the smoking tube base body, and the conductive connecting member is inserted into the cigarette tube cavity, and then the connecting end seat is fixed on the smoking tube base body and the conductive connecting piece. connection. When disassembling, you need to remove the end bracket first, and then fix the end seat with the electric knife.

The conductive connectors are only fixed at both ends, the portion in the body of the smoking chamber is free, and the entire conductive connector is independently present in the body outside the base of the smoking tube.

Preferably, a fixed connection structure is disposed between the electric knife fixed end seat and the conductive connecting member, and the fixed connecting structure comprises an electric knife fixing base disposed on the fixed end seat of the electric knife and disposed at the An electrosurgical conductive base on the conductive connector; the electrosurgical conductive base is inserted into the electrosurgical fixed base.

The fixed connection structure is an irreversible connection structure. When the fixed end seat of the electric knife is fixed with the conductive connecting piece, it can not be split normally. The plugging is to make the electric knife can be replaced but it will not keep along itself when working. The shaft makes an axial rotation.

Preferably, the electric knife fixing base comprises a circular passage and a polygonal passage adjacent thereto, the electric passage is inserted into the polygonal passage, and at least one card slot is opened on a side of the circular passage; The cross-sectional area of the polygonal channel is larger than the cross-sectional area of the circular channel such that the circular channel at the junction of the circular channel and the polygonal channel A rib is formed on the upper side.

Preferably, the electrosurgical conductive base comprises an elastic fixing piece disposed on a surface thereof, an outer edge located at an end portion and directed toward the elastic fixing piece side, and a fastening portion fastening the conductive connecting member at the other end; The electrospin conductive base is fixed in the electrospin fixed base by the elastic fixing piece unidirectionally engaging in the card slot and the outer edge abutting the rib.

The one-way clamping means that when the elastic fixing piece is fixed in the card slot, the two are fixed together forever; the fastening part is fixedly connected with the conductive connecting piece, generally does not need to be disassembled, and the conductive connecting piece is fixed with the electric knife The end blocks move together.

Advantageously, the connection end seat and the electrically conductive connection are connected by a conductive connection structure, the conduction connection structure comprising a cavity disposed on a surface of the smoking tube base and having an opening facing away from the smoking tube cavity a body and a wire base disposed on the conductive connector, the wire base being received within the cavity portion.

The opening of the wall facing away from the smoking tube cavity means that the opening of the wall body faces the outside of the smoking tube cavity, and the main purpose is to facilitate the connection between the wire base and the external conductive limit tube.

Preferably, the cavity portion comprises one or at least two mutually intersecting slots and a cavity for receiving the conductive connector; at least one protrusion is provided in the cavity portion.

Advantageously, the wire base includes a conductive base received in the cavity, and a limiting hole defined in the conductive base by the convex portion is defined.

The above three preferred combinations are to fix the wire base by a slot cavity matching at least one protrusion or at least two mutually intersecting slots to match the at least one protrusion, so that the wire base in one plane is in the X-axis direction The Y axis is fixed.

As a preferred one of the smoking electric knives, the outer portion of the smoking tube base is closely attached with a conductive limiting tube to communicate the connecting end seat with the wire and the controller, and the smoking tube base can follow the conductive limit The shaft of the tube moves axially and is also rotatable about the shaft a distance such that the tobacco tube substrate is fixed at a particular location of the conductive stop tube.

Preferably, the conductive limiting tube is provided with an outer casing, and the outer casing comprises a flexible button covering the controller and a flexible supporting portion symmetrically disposed with the flexible button.

In summary, the beneficial effects of the present invention are that by providing an electrosurgical fixed end seat at the end of the smoking passage, the cross-sectional area is increased, so that the area of contact with the smoke becomes larger, and the smoking effect of the prior art is not good. The resulting surgery is slow, and the accuracy of the surgery is poor.

The independent arrangement of the conductive connecting member and the smoking tube base makes the manufacturing cost lower and the manufacturing difficulty decrease, and the overall quality of the smoking tube is lowered, so that the surgical electric knife composed of the smoking tube is more flexible during the operation; if the smoking tube is deformed only There is a need to replace the smoking pipe, and there is no need to replace other parts. The prior art smoking pipe only needs to replace the smoking pipe after the deformation, but the prior art smoking pipe contains many parts, manufacturing cost and manufacture. Difficulty Large; and because the prior art smoking tube contains a large number of parts, the overall quality is too large, when the smoking tube is extended, the center of gravity of the entire electrosurgical knife is moved forward, which is not conducive to the operation of the operator.

The electric knife conductive base is fixed in the electric knife fixing base in one direction to prevent the electric knife from pulling out the electric knife conductive base from the electric knife fixing base when the electric knife is inserted. The conduction of the smoking tube becomes a direct connection of the present application from the point-to-point conduction between the point-to-face of the prior art, overcoming the problem of poor contact in the prior art.

The connecting end seat is preferably arranged to ensure that the conductive base is fixed at a designated position. If it is not fixed at the designated position, the conductive connecting member is made when the length of the smoking tube is extended and fixed by rotation during the operation. A rotational displacement is generated which causes the conductive connector itself to generate a torsion that affects its useful life. Fixing at a specified position allows the conductive connector to be in a natural state and prolong its service life.

The hand-held part of the entire smoking electrosurgical knife comprises a flexible button covering the controller and a flexible supporting portion symmetrically arranged with the flexible button. The setting of the flexible button and the flexible supporting portion makes the operator more comfortable to operate the electrosurgical knife, and improves the efficiency and precision of the operation. degree.

DRAWINGS

1 is a schematic view showing the overall structure of a surgical electrosurgical unit;

Figure 2 is a side elevational cross-sectional view showing the overall structure of the electrosurgical knife;

Figure 3 is a perspective cross-sectional view of the surgical electric knife omitting the base of the smoking tube;

Figure 4 is a bottom view of a smoking pipe with an electric knife;

Figure 5 is a bottom view of the smoking pipe with an electric knife which is cut at both ends;

Figure 6 is a side view of a smoking pipe with an electric knife cut at both ends;

Figure 7 is a perspective view showing the structure of an electric knife fixed end seat;

Figure 8 is a side cross-sectional view showing the structure of the electric knife fixed end seat;

As shown in Figure 1-8 above; 1-smoking pipe base, 11-electro-tool fixed end seat, 110-electro-knife fixed base, 1101-round channel, 1102-polygonal channel, 1103-card slot, 1104-rib , 12-connecting end seat, 120-cavity part, 1201-slot cavity, 1202-capacity cavity, 1203-protrusion, 2-smoking lumen, 3-electro-knife, 4-conducting connection, 41-electrosurgical Conductive base, 410-elastic fixing piece, 411-outer edge, 412-fastening part, 42-wire base, 420-conducting base, 421-restricted hole, 5-fixed connection structure, 6-conducting connection Structure, 7-conductive limit tube, 8-shell.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings.

A smoking pipe as shown in FIG. 4-6 includes a smoking pipe base 1 and a smoking pipe cavity 2, and an electric knife fixed end seat 11 and a connection for fixing the electric knife 3 are respectively detachably connected to the two ends of the smoking pipe base 1 End seat 12; electric knife fixed end seat 11 and even The terminal blocks 12 are connected by a conductive connection 4 provided in the smoking tube cavity 2.

The conductive connecting member 4 is a wire that is freely disposed in the smoking tube cavity 2 and is independent of the smoking tube base 1.

In a specific embodiment of the detachable connection between the smoking tube base 1 and the electrosurgical fixed end seat 11, a recess is formed on the outer surface of the end portion of the smoking tube base 1, and the electrosurgical fixed end seat 11 includes a portion forming a smoking lumen. The outer ring of the body 2, the outer ring having a contact with the smoking tube base 1 has a rib that confines the smoking tube base 1 in the outer ring, the rib being a bevel directed toward the smoking tube cavity 2. The inner surface of the electric knife fixed end seat 11 adjacent to the retaining edge is provided with a protrusion corresponding to the concave portion, and the fixed end of the electric knife is fixed by the insertion in the axial direction of the smoking tube base 1 and the fastening of the convex portion and the concave portion in the radial direction. The seat 11 is fixed to the smoking tube base 1.

A fixed connection structure 5 is disposed between the electric knife fixed end seat 11 and the conductive connecting member 4 as shown in FIG. 7 and FIG. 8. The fixed connecting structure 5 includes an electric knife fixing base 110 disposed on the electric knife fixed end seat 11. And an electrosurgical conductive base 41 disposed on the conductive connecting member 4; the electrosurgical conductive base 41 is inserted into the electrosurgical fixed base 110. The electrosurgical fixed base 110 is fixed at the center of the outer ring, and a smoking lumen 2 having an area larger than that of the prior art is formed between the electrosurgical fixed base 110 and the outer ring.

The electric knife fixing base 110 includes a circular passage 1101 and a polygonal passage 1102 adjacent thereto, and the electric knife 3 is inserted into the polygonal passage 1102 to prevent the electric knife 3 from rotating in the axial direction, and the circular passage 1101 is symmetrically opened on the side. There are two card slots 1103; the cross-sectional area of the polygonal channel 1102 is larger than the cross-sectional area of the circular channel 1101 so as to fix the axial direction of the electrosurgical blade 3 such that the circular channel at the junction of the circular channel 1101 and the polygonal channel 1102 A rib 1104 is formed on the 1101. The rib 1104 prevents the axial insertion of the electrosurgical blade 3 from being too deep, resulting in too little effective use of the reservation.

The tail portion of the electric knife 3 extends into the circular passage 1101 and is connected to the electrosurgical conductive base 41. The electrosurgical conductive base 41 includes an elastic fixing piece 410 disposed on the surface thereof, and is located at the end portion and directed to the side of the elastic fixing piece 410. The fastening portion 412 of the conductive connecting member 4 is fastened along the 411 and at the other end; the electric knife conductive base 41 is fixed by the elastic fixing piece 410 unidirectionally engaging in the card slot 1103 and the outer edge 411 abutting the rib 1104. The electric knife is fixed in the base 110. The electrosurgical conductive base 41 is finally fixed in the circular passage 1101 by the polygonal passage 1102. The fixing method is such that the elastic fixing piece 410 is a slanting piece whose opening faces the circular passage 1101, when entering the circular passage 1101, The elastic fixing piece 410 is tightly attached to the two sides of the electrosurgical base 41. When the outer edge 411 abuts the rib 1104, the elastic fixing piece 410 just enters the card slot 1103, and the elastic fixing piece 410 opens after entering the card slot 1103. Because the outer edge 411 abuts the rib 1104, the electrosurgical conductive base 41 can no longer continue to advance toward the circular channel 1101, and the elastic fixing piece 410 creates an opening opening angle toward the circular channel 1101 after entering the card slot 1103. Therefore, the electrosurgical conductive base 41 cannot be withdrawn from the polygonal passage 1102. With this simple embodiment, the electrosurgical conductive base 41 is permanently fixed in the electrosurgical fixed base 110. The fastening portion 412 has a "U"-shaped cross section, and when the conductive connecting member 4 enters between the two sides of the "U"-shaped portion, the two sides of the "U"-shaped portion are closed to engage the conductive connecting member 4.

The connection end seat 12 and the conductive connection member 4 are connected by a conductive connection structure 6, and the conduction connection structure 6 includes a cavity portion 120 disposed on the surface of the smoking tube base 1 and having an opening facing away from the smoking tube cavity 2 and disposed at the conductive A wire base 42 on the connector 4, the wire base 42 is received in the cavity portion 120. The conductive connection structure 6 guides the conductive connecting member 4 to the surface of the smoking tube base 1 , and the contact with the wires on the surface of the smoking tube base 1 makes the conduction at the joint more stable, the contact surface is large, and the structure is simple.

The cavity portion 120 includes two slots 1201 that intersect each other perpendicularly and a cavity 1202 that houses the conductive connectors 4; a cavity 1203 is disposed in the cavity portion 120 at the center of the vertically intersecting slots 1201. The wire base 42 includes a conductive base 420 received in the cavity 1201, and a limiting hole 421 defined in the conductive base 420 by the convex portion 1203. The conductive base 420 is also fixedly coupled to the conductive connector 4 by snapping. The fixing method is that the conductive connecting member 4 protruding from the smoking cavity 2 and fixed to the conductive base 420 is folded over to the surface of the smoking tube base 1 , and the conductive connecting member 4 is first engaged in the cavity 1202 , and then the conductive base 420 is turned on. It is placed in the cavity 1201, and the position is adjusted so that the limiting hole 421 enters the convex portion 1203.

The fixing process of the entire smoking pipe is to insert the electrosurgical conductive base 41 into the electric knife fixing base 110, and simultaneously fix the conductive base 420, the electrosurgical conductive base 41 and the conductive connecting member at one end of the conductive connecting member 4. The other end of the fourth end is fixed, and the electrosurgical fixed end seat 11 is inserted into the base of the smoking tube 1. The conductive connecting member 4 and the conductive base portion 420 extending through the smoking base 1 are folded toward the surface of the smoking tube base 1 and inserted into the cavity 1202. And within the cavity 1201.

As shown in FIG. 1 to FIG. 3, an electrosurgical electrosurgical unit is formed by using the above-mentioned smoking duct, and a conductive limiting tube 7 is disposed on the smoking tube base 1 , and the conductive limiting tube 7 is provided with an outer casing 8 integrally connected thereto. The connecting end seat 12 is in close contact with the electric limiting tube 7 to realize the conduction of the entire circuit of the surgical electrosurgical unit.

A ring groove is disposed on the outer circumference of the base body of the smoking pipe, and a rotary bulge member is disposed in the ring groove, and the rotary bulge member is provided with a radial protrusion in the radial direction of the base body 1 of the smoking pipe. A limiting slot is arranged on the conductive limiting tube 7. The radial projection and the limiting groove are fixed in the radial direction. The rotary expansion plug is provided with a mounting opening and a radial protrusion symmetry. The wall thickness of the rotary expansion plug is gradually thickened by the two sides of the mounting opening, and the groove of the ring groove is deeply matched with the base of the smoking pipe. The rotary bulge member which can be moved axially when the conductive limit tube 7 is axially is gradually deepened from the both sides of the mounting opening. Therefore, when the rotary bulge member and the conductive limit tube 7 are axially fixed, the base portion of the squirt tube is rotated to realize the shallow groove of the ring groove and the wall thickness portion of the rotary bulge member is rotated, which results in the smoking tube base body. The wall thickness formed by the cooperation of the 1 and the rotary bulge member is locally changed, which causes a change in the degree of expansion of the smoking tube base 1 relative to the conductive limit tube 7.

Therefore, the ring groove of the present application is eccentric, and the groove depth near the limit groove end is the deepest, and the groove depth away from the limit groove end is the shallowest, and the rotary expansion piece at the shallowest groove depth is provided with the installation port. . Rotating the base of the smoking pipe 1 The shallowest part of the groove is rotated to the left and right, and the rotary bulge is expanded to realize the axial direction of the smoking pipe base 1 and its radial fixation.

The outer casing 8 is an insulating layer disposed outside the conductive limiting tube 7 and integrated with the conductive limiting tube 7. A controller for engaging the conductive wire with the insulating layer is disposed between the conductive limiting tube 7 and the insulating layer, and the conductive wire is connected to the controller through bending or the like. The controller has a PCB with 2 buttons, and the PCB is connected with wires and conductive wires.

For the comfort of the user, the controller is covered with a flexible button and then a flexible support is provided on the outer casing 8 which is arranged symmetrically with the flexible button of the outer casing 8. For the convenience of the user, the required length is taken, and the surface of the smoking tube base 1 is marked with a scale of 0-100 mm.

In the second embodiment, the electric knife fixed end seat 11 includes an electric knife fixing base 110 and an outer ring. The electric knife fixing base 110 abuts against the outer ring forming part of the smoking tube cavity 2, and the conductive connecting member 4 is freely located in the smoking tube. In the cavity 2, and the electric knife fixing base 110 is in close contact with the outer ring, the conductive connecting member 4 is close to the inner wall of the smoking tube cavity 2, and both ends of the conductive connecting member 4 are fixed by the electric knife fixed end seat 11 and the connecting end seat 12.

The present invention is only an explanation of the present invention, and is not intended to limit the present invention. Those skilled in the art can make modifications without any creative contribution to the present embodiment as needed after reading the present specification, but as long as it is in the present application. The scope of the new claims is protected by patent law.

Claims

A smoking pipe comprises a smoking pipe base body (1) and a smoking pipe cavity (2), characterized in that the two ends of the smoking pipe base body (1) are detachably connected with an electric knife fixed by an electric knife (3) An end seat (11) and a connecting end seat (12); an electrically conductive connection disposed between the electric knife fixed end seat (11) and the connecting end seat (12) in the smoking tube cavity (2) Piece (4) is connected.
A smoking duct according to claim 1, characterized in that a fixed connection structure (5) is provided between the electric knife fixed end seat (11) and the conductive connecting member (4), the fixed connection The structure (5) includes an electric knife fixing base (110) disposed on the electroslab fixed end seat (11) and an electrosurgical conductive base (41) disposed on the conductive connecting member (4); The electrosurgical conductive base (41) is inserted into the electrosurgical fixed base (110).
A smoking duct according to claim 2, wherein said electrosurgical fixing base (110) comprises a circular passage (1101) and a polygonal passage (1102) adjacent thereto, said polygonal passage ( 1102) The electric knife (3) is internally inserted, and the circular channel (1101) is provided with at least one card slot (1103) on a side surface thereof; the polygonal channel (1102) has a larger cross-sectional area than the circular channel The cross-sectional area of (1101) is such that a rib (1104) is formed on the circular passage (1101) where the circular passage (1101) is joined to the polygonal passage (1102).
A smoking duct according to claim 3, wherein said electrosurgical conductive base (41) comprises an elastic fixing piece (410) disposed on a surface thereof, located at an end portion and directed toward said elastic fixing piece ( 410) an outer edge of the side (411) and a fastening portion (412) for fastening the conductive connecting member (4) at the other end; the elastic fixing piece (410) is unidirectionally engaged with the card slot ( The inner and outer edges (411) abut the rib (1104) to secure the electrosurgical conductive base (41) within the electrosurgical fixed base (110).
A smoking duct according to claim 1, wherein the connecting end seat (12) and the conductive connecting member (4) are connected by a conductive connection structure (6), the conductive connection The structure (6) includes a cavity portion (120) disposed on a surface of the smoking tube base (1) and having an opening facing away from the smoking tube cavity (2) and a wire disposed on the conductive connecting member (4) A pedestal (42), the wire base (42) being received within the cavity portion (120).
A smoking duct according to claim 5, wherein said cavity portion (120) comprises one or at least two mutually intersecting slots (1201) and a housing for said conductive connector (4) a cavity (1202); at least one protrusion (1203) is disposed in the cavity portion (120).
A smoking duct according to claim 6 wherein said wire base (42) is wrapped A conductive base (420) accommodated in the cavity (1201) is provided, and a limiting hole (421) defined on the conductive base (420) by the convex portion (1203) is defined.
An electrosurgical knife according to the above smoking duct, characterized in that the outer portion of the smoking tube base (1) is in contact with a conductive limiting tube (7) to connect the connecting end seat (12) with the wire and the controller. And the smoking tube base (1) is axially movable along the axis of the conductive limiting tube (7), and is further rotatable about the axis such that the tobacco tube substrate (1) is fixed in the The specific position of the conductive limit tube (7).
The electrosurgical electrosurgical knife according to claim 8, wherein the conductive limiting tube (7) is provided with a casing (8), and the casing (8) comprises a flexible button covering the controller and a flexible support portion symmetrically disposed with the flexible button.