CN115778519A - Integrated puncture cutting ablation instrument - Google Patents
Integrated puncture cutting ablation instrument Download PDFInfo
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- CN115778519A CN115778519A CN202211525037.7A CN202211525037A CN115778519A CN 115778519 A CN115778519 A CN 115778519A CN 202211525037 A CN202211525037 A CN 202211525037A CN 115778519 A CN115778519 A CN 115778519A
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- puncture needle
- needle tube
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Abstract
The invention discloses an integrated puncture cutting ablation instrument, which comprises: the cutting knife tube is provided with a hollow cavity, and the hollow puncture needle tube is arranged in the cutting knife tube and is suitable for moving along the axial direction of the hollow cavity and made of an electrode material; a puncture head is formed at the head end of the hollow puncture needle tube; the outer layer of the cutting knife pipe is coated with an insulating sleeve with a hollow accommodating cavity; the insulating sleeve is matched with a handle part; and a push-pull driving component which is connected with the hollow puncture needle tube and is used for pushing and pulling the hollow puncture needle tube is arranged in the handle part.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an integrated puncture cutting ablation instrument.
Background
The cutting and ablating instrument is widely applied to the treatment of tumors of liver, kidney, soft tissue and other parts. The principle is that the ablation needle extends into the tumor to increase the temperature of tumor cells, generally reaching about 80 ℃ or more than 100 ℃, so that the tumor cells are denatured to realize the coagulation necrosis of the tumor cells, thereby achieving the purpose of killing the tumor cells; or the tumor may be cut to achieve separation of the tumor from the body tissue.
Based on the above requirements, for example, in the prior art, publication No. CN211433279U discloses a disposable push-pull ablation electrode, which uses the same electrode to switch the operation modes of electrocoagulation and cutting by adjusting the output power, although the overall instrument in this structure has a simple structure and is convenient to operate, practical use studies find that the operation mode is switched by simply depending on the difference of the output power, and the defect of low operation precision still exists.
Moreover, the ablation cutting instrument among the conventional art still needs the cooperation puncture ware to use the cooperation of two apparatus not only to have complex operation's problem in the use, also can improve holistic surgical instruments cost simultaneously if simply adopt different functional component stack to realize three kinds of functions, not only can cause the problem that the structure is complicated, but also can increase the volume of apparatus in step to the incision that makes probably form in the apparatus use is big, the problem that the amount of bleeding is many. Therefore, it is a difficult point to effectively and skillfully perform three different operation modes of puncturing, ablating and cutting simultaneously in one instrument, and simultaneously simplify the structure of the whole instrument as much as possible.
Disclosure of Invention
The invention aims to provide an integrated puncture cutting ablation instrument, which aims to solve the technical problem of combining the simplification of an instrument structure and the optimization of multiple purposes of the instrument.
The integrated puncture cutting ablation instrument is realized by the following steps:
an integrated lancing and cutting ablation device comprising: the cutting knife comprises a cutting knife tube with a hollow cavity, and a hollow puncture needle tube which is arranged in the cutting knife tube and is made of an electrode material and suitable for moving along the axial direction of the hollow cavity;
a puncture head is formed at the head end of the hollow puncture needle tube;
the outer layer of the cutting knife pipe is coated with an insulating sleeve with a hollow accommodating cavity; the insulating sleeve is matched with a handle part; and
a push-pull driving component which is connected with the hollow puncture needle tube and is used for pushing and pulling the hollow puncture needle tube is arranged in the handle part.
In an alternative embodiment of the invention, the head end of the cutter tube is formed with a sheet-like cutting head.
In alternative embodiments of the invention, the piercing head is pointed or blade-like or serrated. In an optional embodiment of the invention, the tail end of the insulating sleeve is matched with a fixed sleeve; and
the fixing sleeve is provided with a mounting cavity suitable for the insulation sleeve and the part of the cutting knife pipe to be inserted;
the fixed sleeve is connected with the handle part.
In an optional embodiment of the invention, the push-pull driving assembly comprises a movable sleeve fixedly sleeved on the part of the hollow puncture needle tube extending into the handle part, a push-pull block fixedly connected with the movable sleeve, and a movable groove formed on the shell of the handle part;
the push-pull block is suitable for moving in the movable groove so that the movable sleeve drives the hollow puncture needle tube to do linear motion.
In an optional embodiment of the invention, the hollow puncture needle tube comprises a large-outer-diameter tube body fixedly connected with the movable sleeve and a small-outer-diameter tube body arranged at the end part of the large-outer-diameter tube far away from the movable sleeve;
the inner cavity of the small-outer-diameter pipe body is communicated with the inner cavity of the large-outer-diameter pipe body; and
the puncture head is formed at the head end of the small outer diameter pipe body far away from the large outer diameter pipe body.
In an alternative embodiment of the present invention, the handle portion is further provided with a cutting button for activating cutting energy and an ablation button for activating ablation energy; and
a circuit board used for matching and connecting the cutting button and the ablation button is also arranged in the handle part.
In an optional embodiment of the invention, the hollow puncture needle tube is connected with the circuit board through a conductive reed; and
the cutting knife tube is provided with a pressing plate which is suitable for being pressed on the hollow puncture needle tube.
In an alternative embodiment of the present invention, the conductive spring comprises a pair of metal springs oppositely disposed and adapted to hold the hollow puncture needle tube; the pair of conductive reeds are connected with the circuit board through a connecting sheet; wherein
And the pair of conductive spring leaves are respectively provided with an arc-shaped groove which is in contact fit with the outer side wall of the hollow puncture needle tube.
In an optional embodiment of the invention, the integrated puncture and cutting ablation instrument further comprises a suction tube which is arranged on the handle part and is connected with the tail end far away from the puncture head; and
the suction tube is communicated with the tail end of the hollow puncture needle tube far away from the puncture head.
By adopting the technical scheme, the invention has the following beneficial effects: the integrated puncture cutting ablation instrument has the advantages that the cutting knife tube and the hollow puncture needle tube are matched for use, so that the ablation instrument can have the cutting and ablation functions at the same time, the cutting and ablation operations are respectively executed by adopting two independent structures, the two operation modes are not interfered with each other and are not crossed, and the use precision of the two different operation modes can be improved.
Moreover, the hollow puncture needle tube is directly made of the electrode material, so that the hollow puncture needle tube can not only execute puncture operation, but also execute ablation operation under the condition of electrifying the hollow puncture needle tube. Through the dual-purpose hollow puncture needle pipe of a thing for the condition that is provided with puncture structure and melts the structure among the prior art respectively is compared to holistic structure, simple structure, and it is convenient to use, and can reduce the apparatus cost that whole puncture melts the pen, reduces the operation expense from this.
Drawings
FIG. 1 is a schematic view of the integrated lancing and cutting ablation device of the present invention during lancing or ablation;
FIG. 2 is a schematic view of the integrated lancing and cutting ablation device of the present invention during cutting;
FIG. 3 is a first perspective cross-sectional view of the integrated lancing and ablation device of the present invention;
FIG. 4 is a second perspective cross-sectional view of the integrated lancing ablation device of the present invention;
FIG. 5 is a first partially schematic cross-sectional view of the integrated lancing and cutting ablation device of the present invention;
FIG. 6 is a second partially schematic cross-sectional view of the integrated lancing and cutting ablation device of the present invention;
FIG. 7 is a first partially schematic illustration of the integrated lancing and cutting ablation device of the present invention;
fig. 8 is a partial schematic view of the integrated puncture and cutting ablation device of the invention.
In the figure: the puncture device comprises a cutting knife tube 1, a pressing plate 11, a cutting head 2, a hollow puncture needle tube 2, a puncture head 21, a small outer diameter tube 22, a large outer diameter tube 23, an insulating sleeve 3, a handle part 4, a fixed sleeve 5, a movable sleeve 71, a push-pull block 72, a movable groove 73, a circuit board 81, a cutting button 82, an ablation button 83, a metal reed 84, a suction tube 91, a sealing sleeve 92 and a sealing ring 93.
Detailed Description
In order that the manner in which the present invention is attained and can be understood in detail, a more particular description of the invention briefly summarized above may be had by reference to the embodiments thereof which are illustrated in the appended drawings.
Example 1:
referring to fig. 1 to 8, the present embodiment provides an integrated puncture cutting ablation device, including: the puncture needle tube comprises a cutting knife tube 1 with a hollow cavity, and a hollow puncture needle tube 2 which is arranged in the cutting knife tube 1 and is suitable for moving along the axial direction of the hollow cavity and made of an electrode material; the head end of the hollow puncture needle tube 2 is formed with a puncture head 21. It should be noted that the "head end" in this embodiment corresponds to an end of the integrated puncture-cutting ablation instrument that is away from the hand that operates the integrated puncture-cutting ablation instrument during use, and the "tail end" corresponds to an end of the integrated puncture-cutting ablation instrument that is close to the hand that operates the integrated puncture-cutting ablation instrument during use. The piercing head 21 may be pointed or blade-shaped or serrated, but this embodiment is not limited thereto.
The outer cladding of cutting knife pipe 1 has the insulating cover 3 that cavity holds the chamber, and the head end protrusion of cutting knife pipe 1 in the head end of insulating cover 3 for the setting of insulating cover 3 can not influence the realization of the normal cutting function of the head end of cutting knife pipe 1. In particular, a sheet-like cutting head 11 is formed at the head end of the cutter tube 1 to facilitate the cutting operation. With this structure, the cutter tube 1 is made to exert a cutting action only on the sheet-like cutting head 11 thereof during use, and not on the outer side wall of the other portion of the cutter tube 1, thereby preventing the formation of coagulum due to an unintended action on the outer side wall of the other portion of the cutter tube 1.
On the basis of the structure, the tail end of the insulating sleeve 3 is matched with the handle part 4, the handle part 4 is mainly used for holding by hands, and the handle part 4 is internally provided with a push-pull driving component which is connected with the hollow puncture needle tube 2 and is used for pushing and pulling the hollow puncture needle tube 2.
More specifically, the tail end of the insulating sleeve 3 is matched with a fixed sleeve 5; and the fixed sleeve 5 is provided with a mounting cavity suitable for partially inserting the insulating sleeve 3 and the cutting knife pipe 1; the sleeve 5 is connected to the handle portion 4. The harness in this embodiment may also be made of, for example, but not limited to, heat shrink plastic. And for the sleeve 5 in this embodiment, it can be fixed to the handle portion 4 by interference clamping, or by bonding or welding.
Next, it should be further noted that, for the push-pull driving assembly of the present embodiment, as an alternative case illustrated in the attached drawings, the push-pull driving assembly includes a movable sleeve 71 fixedly sleeved on the portion of the hollow puncture needle tube 2 extending into the handle portion 4, a push-pull block 72 fixedly connected to the movable sleeve 71, and a movable groove 73 formed on the housing of the handle portion 4; the push-pull block 72 is adapted to move in the movable slot 73 so that the movable sleeve 71 carries the hollow puncture needle tube 2 in a linear motion. The movable groove 73 defines the movable track of the hollow puncture needle tube 2, wherein the surface of the push-pull block 72 can be provided with anti-slip threads, so that a certain friction exists between the hand and the push-pull block 72, and the phenomenon of slipping is not easy to occur.
The hollow puncture needle tube 2 used in the present embodiment may have a tubular shape with a uniform outer diameter and an integral structure, for example, the hollow puncture needle tube 2 as a whole has a circular tubular structure, and the puncture tip 21 is formed at the tip end of the circular tubular structure. The hollow puncture needle tube 2 may also have a tube body with different outer diameters, and in one example, in combination with the drawings, the hollow puncture needle tube 2 includes a large outer diameter tube 23 fixedly connected with the movable sleeve 71 and a small outer diameter tube 22 connected to the end of the large outer diameter tube far away from the movable sleeve 71; wherein the outer diameter of the small outer diameter pipe 22 is smaller than that of the large outer diameter pipe 23, and the small outer diameter pipe 22 and the large outer diameter pipe 23 are both hollow pipe structures; the puncture head 21 is formed at the tip end of the small outer diameter tube 22 away from the large outer diameter tube 23. In the processing process, an embedded groove for embedding the small outer diameter pipe 22 can be directly formed at the end part of the large outer diameter pipe 23 connected with the small outer diameter pipe 22, and after the small outer diameter pipe 22 is matched and connected with the embedded groove, the hollow inner cavity of the small outer diameter pipe 22 is communicated with the hollow inner cavity of the large outer diameter pipe 23. The large outer diameter tube 23 and the small outer diameter tube 22 may be formed integrally or welded together, which is not limited in this embodiment.
It is to be noted that, in the present embodiment, the cutting blade tube 1 and the hollow puncture needle tube 2 are controlled in a switching manner during use, and the present embodiment is designed as follows:
first, a cutting button 82 for activating cutting energy and an ablation button 83 for activating ablation energy are also provided on the handle portion 4.
Secondly, a circuit board 81 for matching and connecting a cutting button 82 and an ablation button 83 is arranged in the handle part 4, and the circuit board 81 is fixed in the handle part 4; when the cutting button 82 is in contact conduction with the wiring board 81, a cutting operation is performed, and when the ablation button 83 is in contact conduction with the wiring board 81, an ablation operation is performed.
Furthermore, during the use of the integrated puncture and cutting ablation device of the present embodiment, the cutting blade tube 1 is a fixed connection structure relative to the handle portion 4, and does not move relatively. The hollow puncture needle tube 2 needs to move axially in the handle portion 4, so if an electrical connection wire is connected to the circuit board 81, there may be a situation that the electrical connection wire connected to the hollow puncture needle tube 2 is broken by pulling during the axial movement of the hollow puncture needle tube 2, and therefore, in order to avoid this situation, the hollow puncture needle tube 2 is connected to the circuit board 81 through a conductive reed. The cutting knife tube 1 is provided with a pressing plate 11 which is suitable for being pressed on the hollow puncture needle tube 2 in a propping manner, so that the hollow puncture needle tube 2 is connected through the transition action of the pressing plate 11, and the electrical connection between the cutting knife tube 11 and the circuit board 81 is realized through the action of the conductive reed. Based on the structure, it should be noted that, in the process of the axial movement of the hollow puncture needle tube 2, the pressing plate 11 and the cutter tube 11 are in sliding fit with the hollow puncture needle tube 2.
In more detail, and as one possibility illustrated in the attached drawings, the conductive spring comprises a pair of metal springs 84 arranged opposite each other and adapted to hold the hollow puncture needle cannula 2; a pair of metal spring pieces 84 connected to the circuit board 81 through a connecting piece; under the structure, the conductive spring is fixedly connected with the circuit board 81, that is, the conductive spring and the hollow puncture needle tube 2 form sliding fit in the process of axial movement of the hollow puncture needle tube 2.
Based on the above structure, a pair of metal reeds 84 in this embodiment respectively have the arc groove that contacts and cooperates with the lateral wall of hollow puncture needle tube 2, and the design of arc groove makes electrically conductive reed can not influence the normal axial motion process of hollow puncture needle tube 2 in handle portion 4 here, can keep electrically conductive reed and hollow puncture needle tube 2's effective contact surface again to keep good electric connection effect.
In summary, the specific implementation principle of the integrated puncture and cutting ablation device of the present embodiment is as follows:
when needs are with adopting hollow puncture needle tubing 2 to carry out the puncture or melt the operation, make hollow puncture needle tubing 2 produce axial removal towards the one end of keeping away from the hand through push-and-pull drive assembly, and then make the puncture head 21 of hollow puncture needle tubing 2 can stretch out in the head end outside of cutting knife pipe 1, press this moment and melt button 83 and can carry out the operation of melting, and when not pressing and melting button 83, hollow puncture needle tubing 2 does not circular telegram, and the corresponding hollow puncture needle tubing 2 can carry out the operation of puncturing. When the cutting knife tube 1 needs to be used for cutting operation, one end, facing the hand, of the hollow puncture needle tube 2 moves axially by pushing and pulling the driving assembly, so that the puncture head 21 of the hollow puncture needle tube 2 is gradually folded into the cutting knife tube 1 until the puncture head is completely folded into the cutting knife tube 1, and the cutting operation can be executed by pressing the cutting button 82 at the moment. In conclusion, for the integrated puncture and cutting ablation device in the present embodiment, the whole use process only needs to poke the push-pull block 72 and switch the working states of the ablation button 83 and the cutting button 82 by fingers, so the operation of the whole device in the use process is very convenient.
Example 2:
on the basis of the integrated puncture and cutting ablation instrument in embodiment 1, the integrated puncture and cutting ablation instrument provided in this embodiment further includes a suction tube 91 connected to the tail end of the handle portion 4 away from the puncture head 21; and the suction tube 91 is communicated with the tail end of the hollow puncture needle tube 2 far away from the puncture head 21. The significance of design like this mainly lies in when hollow puncture needle tubing 2 carries out the ablation operation, probably produce the flue gas, if the flue gas is not discharged in time, can directly influence the definition in the operation field of vision, and hollow puncture needle tubing 2 that this embodiment adopted has hollow cavity, the flue gas can directly enter into in this cavity, so through attracting pipe 91 and hollow puncture needle tubing 2's being connected, can in time absorb the flue gas, guarantee the clear definition in operation field of vision from this, improve the precision of operation from this, avoid because of the not good problem that misoperation appears of sight.
More specifically, the hollow puncture needle tube 2 in this embodiment needs to move axially in the handle portion 4, so that the connection between the suction tube 91 and the hollow puncture needle tube 2 does not affect the normal axial movement of the hollow puncture needle tube 2, and a good sealing fit between the suction tube 91 and the hollow puncture needle tube 2 can be ensured. The present embodiment has made the following structural design:
the end of the suction tube 91 connected with the hollow puncture needle tube 2 is also connected with a sealing sleeve 92, the sealing sleeve 92 and the suction tube 91 are provided with a hollow channel which is communicated and suitable for the hollow puncture needle tube 2 to be partially inserted, the hollow puncture needle tube 2 is also sleeved with at least one sealing ring 93, the sealing ring 93 is positioned at the shaft end of the suction tube 91 facing the sealing sleeve 92, and the sealing ring 93 is limited between the sealing sleeve 92 and the suction tube 91, so that the sealing ring 93 always keeps effective contact with the outer side wall of the hollow puncture needle tube 2 in the axial movement process of the hollow puncture needle tube 2.
The above embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, 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, equivalents, 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.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the present product is conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present invention, unless otherwise expressly stated or limited, the first feature may be present on or under the second feature in direct contact with the first and second feature, or may be present in the first and second feature not in direct contact but in contact with another feature between them. Also, the first feature may be over, above or on the second feature including the first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being below, beneath or beneath a second feature includes the first feature being directly below and obliquely below the second feature or simply indicating that the first feature is at a lesser level than the second feature.
Claims (10)
1. An integrated lancing and cutting ablation device, comprising: the cutting knife tube is provided with a hollow cavity, and the hollow puncture needle tube is arranged in the cutting knife tube and is suitable for moving along the axial direction of the hollow cavity and made of an electrode material;
a puncture head is formed at the head end of the hollow puncture needle tube;
the outer layer of the cutting knife tube is coated with an insulating sleeve with a hollow accommodating cavity; the insulating sleeve is matched with a handle part; and
a push-pull driving component which is connected with the hollow puncture needle tube and is used for pushing and pulling the hollow puncture needle tube is arranged in the handle part.
2. The integrated lancing and cutting ablation device of claim 1, wherein the head end of the cutter tube is formed with a sheet-like cutting head.
3. The integrated lancing and cutting ablation device of claim 1, wherein the lancing head is pointed or blade-like or serrated.
4. The integrated lancing, cutting and ablating instrument of claim 3, wherein a retaining sleeve is coupled to the trailing end of the insulating sleeve; and
the fixing sleeve is provided with a mounting cavity suitable for the insulation sleeve and the part of the cutting knife pipe to be inserted;
the fixed sleeve is connected with the handle part.
5. The integrated puncture cutting ablation instrument as claimed in claim 1, wherein the push-pull driving assembly comprises a movable sleeve fixedly sleeved on the part of the hollow puncture needle tube extending into the handle part, a push-pull block fixedly connected with the movable sleeve, and a movable groove formed on the shell of the handle part;
the push-pull block is suitable for moving in the movable groove so that the movable sleeve drives the hollow puncture needle tube to do linear motion.
6. The integrated puncture cutting ablation instrument according to claim 5, wherein the hollow puncture needle tube comprises a large outer diameter tube body fixedly connected with the movable sleeve and a small outer diameter tube body connected with the end part of the large outer diameter catheter far away from the movable sleeve;
the inner cavity of the small-outer-diameter pipe body is communicated with the inner cavity of the large-outer-diameter pipe body; and
the puncture head is formed at the head end of the small-outer-diameter pipe body far away from the large-outer-diameter pipe body.
7. The integrated lancing and cutting ablation device of claim 1, wherein the handle portion further includes a cutting button for activating cutting energy and an ablation button for activating ablation energy; and
a circuit board used for matching and connecting the cutting button and the ablation button is also arranged in the handle part.
8. The integrated lancing, cutting and ablating device of claim 7, wherein the hollow lancet tube is connected to a circuit board by a conductive spring; and
the cutting knife tube is provided with a pressing plate which is suitable for being pressed on the hollow puncture needle tube.
9. The integrated lancing, cutting and ablation device of claim 8, wherein the electrically conductive spring comprises a pair of opposing metal springs adapted to hold a hollow lancet tube; the pair of conductive reeds are connected with the circuit board through a connecting sheet; wherein
And the pair of conductive spring leaves are respectively provided with an arc-shaped groove which is in contact fit with the outer side wall of the hollow puncture needle tube.
10. The integrated puncture and cutting ablation instrument according to claim 1, further comprising a suction tube connected to the tail end of the handle portion away from the puncture head; and
the suction tube is communicated with the tail end of the hollow puncture needle tube far away from the puncture head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211525037.7A CN115778519A (en) | 2022-11-30 | 2022-11-30 | Integrated puncture cutting ablation instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211525037.7A CN115778519A (en) | 2022-11-30 | 2022-11-30 | Integrated puncture cutting ablation instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115778519A true CN115778519A (en) | 2023-03-14 |
Family
ID=85444148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211525037.7A Pending CN115778519A (en) | 2022-11-30 | 2022-11-30 | Integrated puncture cutting ablation instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115778519A (en) |
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2022
- 2022-11-30 CN CN202211525037.7A patent/CN115778519A/en active Pending
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