CN219126656U - Puncture cutting ablation instrument - Google Patents
Puncture cutting ablation instrument Download PDFInfo
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- CN219126656U CN219126656U CN202223199909.3U CN202223199909U CN219126656U CN 219126656 U CN219126656 U CN 219126656U CN 202223199909 U CN202223199909 U CN 202223199909U CN 219126656 U CN219126656 U CN 219126656U
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Abstract
The utility model discloses an integrated puncture cutting ablation instrument, which comprises: the cutting knife tube is provided with a hollow cavity and a hollow puncture needle tube which is arranged in the cutting knife tube and is suitable for moving along the axial direction of the hollow cavity and is made of electrode materials; the head end of the hollow puncture needle tube is provided with a puncture head; the outer layer of the cutting knife tube is coated with an insulating sleeve with a hollow accommodating cavity; the insulating sleeve is connected with a handle part in a matching way; and a push-pull driving component which is connected with the hollow puncture needle tube and used for pushing and pulling the hollow puncture needle tube is arranged in the handle part.
Description
Technical Field
The utility model 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 at the parts of the liver, the kidneys, the soft tissues and the like. The principle is that the ablation needle stretches into the tumor to raise the temperature of tumor cells to about 80 degrees or more than 100 degrees, so that the tumor cells are denatured to realize the coagulative necrosis of the tumor cells; or the tumor is cut to achieve the aim of separating the tumor from the body tissue.
Based on the above requirements, in the prior art, for example, CN211433279U discloses a disposable push-pull ablation electrode, which adopts the same electrode to switch the operation modes of electrocoagulation and cutting by adjusting the output power, although the whole instrument with the structure has simple structure and convenient operation, through practical use and research, the defect of low operation precision still exists when the operation modes are simply switched by relying on the difference of the output power.
Furthermore, the ablation cutting instrument in the prior art also needs to be matched with the puncture outfit to use the matching of the two instruments in the use process, so that the problem of complex operation is solved, the cost of the whole surgical instrument is also improved, if the three functions are realized by simply superposing different functional components, the problem of complex structure is caused, the volume of the instrument is synchronously increased, and the problems of large incision and large bleeding amount which are possibly formed in the use process of the instrument are solved. It is therefore a difficulty how to efficiently and skillfully perform three different modes of operation, puncture, ablation and cutting, simultaneously in one instrument, while at the same time simplifying the structure of the overall instrument as much as possible.
Disclosure of Invention
The utility model aims to provide an integrated puncture cutting ablation instrument, which aims to solve the technical problems of simplifying the instrument structure and optimizing the multipurpose of the instrument.
The integrated puncture cutting ablation instrument is realized by the following steps:
an integrated lancing, cutting and ablating instrument, comprising: the cutting knife tube is provided with a hollow cavity, and a hollow puncture needle tube which is arranged in the cutting knife tube and is suitable for moving along the axial direction of the hollow cavity and is made of electrode materials;
the head end of the hollow puncture needle tube is provided with a puncture head;
the outer layer of the cutting knife tube is coated with an insulating sleeve with a hollow accommodating cavity; the insulating sleeve is connected with a handle part in a matching way; and
a push-pull driving component connected with the hollow puncture needle tube for pushing and pulling the hollow puncture needle tube is arranged in the handle part.
In an alternative embodiment of the utility model, the head end of the cutter tube is formed with a sheet-like cutting head.
In an alternative embodiment of the utility model, the piercing tip is pointed or blade-like or serrated.
In an alternative embodiment of the utility model, the tail end of the insulating sleeve is connected with a fixed sleeve in a matching way; and
the fixed sleeve is provided with a mounting cavity suitable for the insertion of the insulating sleeve and the cutting knife tube part;
the fixed sleeve is connected with the handle part.
In an alternative embodiment of the utility model, 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 arranged 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 alternative embodiment of the utility model, 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.
In an alternative embodiment of the utility model, a cutting button for starting cutting energy and an ablation button for starting ablation energy are also arranged on the handle part; and
and a circuit board used for being matched with the cutting button and the ablation button is also arranged in the handle part.
In an alternative embodiment of the utility model, 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 utility model, the conductive spring comprises a pair of opposed metallic springs adapted to grip a hollow needle cannula; the pair of conductive reeds are connected with the circuit board through a connecting sheet; wherein the method comprises the steps of
The pair of conductive reeds are respectively provided with an arc-shaped groove in contact fit with the outer side wall of the hollow puncture needle tube.
In an alternative embodiment of the present utility model, the integrated lancing and cutting ablation device further includes a suction tube connected to a tail end of the handle portion distal to the puncture head; and
the suction tube is communicated with the tail end of the hollow puncture needle tube, which is far away from the puncture head.
By adopting the technical scheme, the utility model has the following beneficial effects: according to the integrated puncture cutting ablation instrument, through the matched use of the cutting knife tube and the hollow puncture needle tube, the ablation instrument can have cutting and ablation functions at the same time, and two independent structures are adopted to execute cutting and ablation operations respectively, and the two operation modes are not mutually interfered and are not crossed, so that the use precision of the two different operation modes can be improved.
Furthermore, the hollow puncture needle tube is directly made of electrode materials, so that the hollow puncture needle tube can perform not only puncture operation, but also ablation operation under the condition of electrifying the hollow puncture needle tube. Through the dual-purpose hollow puncture needle tube of a thing for the holistic structure compares to be provided with the condition of puncture structure and ablation structure among the prior art respectively, simple structure, it is convenient to use, and can reduce the instrument cost of whole puncture ablation pen, reduces the operation expense from this.
Drawings
FIG. 1 is a schematic illustration of an integrated lancing, cutting and ablating instrument of the present utility model as it is lancing or ablating;
FIG. 2 is a schematic illustration of an integrated lancing, cutting and ablating instrument of the present utility model in use;
FIG. 3 is a first perspective cross-sectional schematic view of an integrated lancing, cutting and ablating instrument according to the present utility model;
FIG. 4 is a second perspective cross-sectional schematic view of the integrated lancing, cutting and ablating instrument of the present utility model;
FIG. 5 is a schematic illustration in partial cross-section of an integrated lancing, cutting and ablating instrument according to the present utility model;
FIG. 6 is a schematic illustration in partial cross-section of an integrated lancing, cutting and ablating instrument according to the present utility model;
FIG. 7 is a partial schematic view of an integrated lancing, cutting and ablating instrument according to the present utility model;
fig. 8 is a partial schematic view of an integrated lancing, cutting and ablating instrument according to the present utility model.
In the figure: cutting blade tube 1, platen 11, cutting head 2, hollow puncture needle tube 2, puncture head 21, small outer diameter tube 22, large outer diameter tube 23, insulation sleeve 3, handle portion 4, fixed sleeve 5, movable sleeve 71, push-pull block 72, movable groove 73, circuit board 81, cutting button 82, ablation button 83, metal reed 84, suction tube 91, sealing sleeve 92, sealing ring 93.
Detailed Description
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
Example 1:
referring to fig. 1-8, the present embodiment provides an integrated lancing, cutting and ablating instrument, comprising: a cutter tube 1 with a hollow cavity and a hollow puncture needle tube 2 which is arranged in the cutter tube 1 and is suitable for moving along the axial direction of the hollow cavity and is made of electrode materials; the tip 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 lancing and cutting ablation instrument that is far away from the hand that operates the integrated lancing and cutting ablation instrument during use, and the "tail end" corresponds to an end of the integrated lancing and cutting ablation instrument that is near to the hand that operates the integrated lancing and cutting ablation instrument during use. The puncture head 21 may be pointed, blade-shaped, or saw-tooth-shaped, and this embodiment is not limited in any way.
The outer cladding of cutting knife pipe 1 has the insulating cover 3 that has the cavity and holds the chamber, and the head end protrusion of cutting knife pipe 1 in the head end of insulating cover 3 for the realization of the normal cutting function of the head end of cutting knife pipe 1 can not be influenced in the setting of insulating cover 3. 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 cutting blade tube 1 is used only in the sheet-like cutting head 11, but not in the outer side wall of other parts of the cutting blade tube 1, so as to avoid the coagulation block formed by the unexpected action of the outer side wall of other parts of the cutting blade tube 1.
On the basis of the structure, the tail end of the insulating sleeve 3 is matched and connected with the handle part 4, the handle part 4 is mainly used for holding the hand, and a push-pull driving component connected with the hollow puncture needle tube 2 for pushing and pulling the hollow puncture needle tube 2 is arranged in the handle part 4.
More specifically, the tail end of the insulating sleeve 3 is matched and connected with a fixed sleeve 5; and the fixed sleeve 5 has a mounting cavity adapted for partial insertion of the insulating sleeve 3 and the cutter tube 1; the fixed sleeve 5 is connected with the handle part 4. The retaining sleeve in this embodiment may also be made of, for example, but not limited to, heat shrink plastic. And the fixing sleeve 5 in the embodiment can be connected and fixed with the handle part 4 by adopting an interference clamping way, an adhesive way or a welding way.
Next, it should be further described that, for the push-pull driving assembly of the present embodiment, as an alternative case, referring to the drawings, the push-pull driving assembly includes a movable sleeve 71 fixedly sleeved on a portion of the hollow puncture needle tube 2 extending into the handle portion 4, a push-pull block 72 fixedly connected with the movable sleeve 71, and a movable groove 73 opened on a 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 moves the hollow needle cannula 2 in a linear motion. The movable groove 73 defines the movable track of the hollow puncture needle tube 2, wherein anti-skidding patterns can be arranged on the surface of the push-pull block 72, so that certain friction exists between the hand and the push-pull block 72, and the slipping phenomenon is not easy to occur.
The hollow puncture needle tube 2 used in the present embodiment may be a tube body of one piece and uniform outer diameter, for example, the hollow puncture needle tube 2 as a whole has a circular tube structure, and the puncture head 21 is formed at the head end of the circular tube structure. Of course, the hollow puncture needle tube 2 can also be in a tube shape with different outer diameters, and in combination with the accompanying drawings, for example, the hollow puncture needle tube 2 comprises a large outer diameter tube 23 fixedly connected with the movable sleeve 71 and a small outer diameter tube 22 connected with the end part of the large outer diameter catheter far away from the movable sleeve 71; 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 hollow pipe structures; the puncture head 21 is formed at the head end of the small outer diameter tube 22 body away from the large outer diameter tube 23 body. In the processing process, an embedded groove for embedding the small-diameter tube 22 can be directly formed at the end part of the large-diameter tube 23 connected with the small-diameter tube 22, and after the small-diameter tube 22 is matched with the embedded groove, the hollow inner cavity of the small-diameter tube 22 is communicated with the hollow inner cavity of the large-diameter tube 23. The large outer diameter tube 23 and the small outer diameter tube 22 may be formed integrally or may be welded together, and this embodiment is not limited in any way.
It will be further described that, in this embodiment, the cutting blade tube 1 and the hollow puncture needle tube 2 are controlled in a switching manner during use, and the following design is made in this embodiment:
first, the handle portion 4 is further provided with a cutting button 82 for activating cutting energy and an ablation button 83 for activating ablation energy.
Secondly, a circuit board 81 for matching the cutting button 82 and the ablation button 83 is also arranged in the handle part 4, and the circuit board 81 is fixed inside the handle part 4; when the cutting button 82 is brought into contact with the wiring board 81, a cutting operation is performed, and when the ablation button 83 is brought into contact with the wiring board 81, an ablation operation is performed.
Furthermore, during the use of the integrated lancing and cutting ablation device of the present embodiment, the cutter tube 1 is fixedly connected to the handle portion 4, and no relative movement occurs. 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 case where the electrical connection wire connected to the hollow puncture needle tube 2 may break due to pulling during the axial movement of the hollow puncture needle tube 2, so in order to avoid such a case, 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, so that the hollow puncture needle tube 2 is connected through the transitional action of the pressing plate 11, and the electric connection between the cutting knife tube 11 and the circuit board 81 is realized through the action of the conductive reed. Based on this structure, the pressing plate 11 and the cutter tube 11 are in sliding fit with the hollow puncture needle tube 2 during the axial movement of the hollow puncture needle tube 2.
In more detail, and to the extent possible by way of example in connection with the accompanying drawings, the conductive spring comprises a pair of opposed metallic springs 84 adapted to grip the hollow needle cannula 2; a pair of metal reeds 84 are connected to the wiring board 81 by a connecting piece; with this structure, the conductive reed is fixedly connected with the circuit board 81, that is, the conductive reed and the hollow puncture needle tube 2 form a sliding fit in the axial movement process of the hollow puncture needle tube 2.
Based on the above structure, the pair of metal reeds 84 in this embodiment have arc grooves respectively in contact fit with the outer side wall of the hollow puncture needle tube 2, where the design of the arc grooves makes the conductive reeds not affect the normal axial movement process of the hollow puncture needle tube 2 in the handle portion 4, and also can maintain the effective contact surface of the conductive reeds and the hollow puncture needle tube 2, so as to maintain good electrical connection effect.
To sum up, for the integrated lancing and cutting ablation device of this embodiment, the specific implementation principle is as follows:
when the puncture or ablation operation needs to be performed by adopting the hollow puncture needle tube 2, the hollow puncture needle tube 2 is axially moved towards one end far away from the hand by pushing and pulling the driving assembly, so that the puncture head 21 of the hollow puncture needle tube 2 can extend out of the head end of the cutting knife tube 1, the ablation operation can be performed by pressing the ablation button 83 at the moment, and when the ablation button 83 is not pressed, the hollow puncture needle tube 2 is not electrified, and the corresponding hollow puncture needle tube 2 can perform the puncture operation. When the cutting operation is required to be performed by adopting the cutting knife tube 1, the hollow puncture needle tube 2 moves axially towards one end of the hand by pushing and pulling the driving component, so that the puncture head 21 of the hollow puncture needle tube 2 is gradually folded into the cutting knife tube 1 until the hollow puncture needle tube 2 is completely folded into the cutting knife tube 1, and at the moment, the cutting operation can be performed by pressing the cutting button 82. In summary, for the integrated puncture ablation device in this embodiment, the whole operation process only needs to toggle the push-pull block 72 by fingers and switch the working states of the ablation button 83 and the cutting button 82, so that the operation of the whole device is very convenient.
Example 2:
on the basis of the integrated puncture, cutting and ablation instrument of embodiment 1, the integrated puncture, cutting and ablation instrument provided by this embodiment further comprises a suction tube 91 connected to the tail end of the handle portion 4, which is far 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 such design is mainly that when the hollow puncture needle tube 2 executes ablation operation, smoke gas can be generated, if the smoke gas is not discharged timely, the definition of the operation visual field can be directly influenced, while the hollow puncture needle tube 2 adopted in the embodiment is provided with a hollow cavity, the smoke gas can directly enter the cavity, so the smoke gas can be timely absorbed through the connection of the suction tube 91 and the hollow puncture needle tube 2, thereby ensuring the definition of the operation visual field, improving the accuracy of the operation and avoiding the problem of misoperation caused by poor visual field.
More specifically, in this embodiment, the hollow puncture needle tube 2 needs to perform axial movement in the handle portion 4, so in order to ensure that the connection between the suction tube 91 and the hollow puncture needle tube 2 does not affect the normal axial movement requirement of the hollow puncture needle tube 2, and also ensure that a good sealing fit is formed between the suction tube 91 and the hollow puncture needle tube 2. The following structural design is made in this embodiment:
the end of the hollow puncture needle tube 2 is also connected with a sealing sleeve 92 in a matched mode, the sealing sleeve 92 and the suction tube 91 are provided with a hollow cavity channel which is communicated and suitable for the partial insertion of the hollow puncture needle tube 2, at least one sealing ring 93 is sleeved on the hollow puncture needle tube 2, 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 hollow puncture needle tube 2 always keeps effective contact with the outer side wall of the hollow puncture needle tube 2 in the axial moving process.
The foregoing embodiments have been provided for the purpose of illustrating the general principles of the present utility model, and are more fully described herein with reference to the accompanying drawings, in which the principles of the present utility model are shown and described, and in which the general principles of the utility model are defined by the appended claims.
In the description of the present utility model, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its 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 utility model, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.
Claims (10)
1. An integrated lancing, cutting and ablating instrument, comprising: the cutting knife tube is provided with a hollow cavity, and a hollow puncture needle tube which is arranged in the cutting knife tube and is suitable for moving along the axial direction of the hollow cavity and is made of electrode materials;
the head end of the hollow puncture needle tube is provided with a puncture head;
the outer layer of the cutting knife tube is coated with an insulating sleeve with a hollow accommodating cavity; the insulating sleeve is connected with a handle part in a matching way; and
a push-pull driving component connected with the hollow puncture needle tube for pushing and pulling the hollow puncture needle tube is arranged in the handle part.
2. The integrated lancing, cutting and ablating instrument of claim 1, wherein the head end of said cutter tube is formed with a sheet-like cutting head.
3. The integrated lancing, cutting and ablating instrument of claim 1, wherein said 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 tail end of said insulating sleeve; and
the fixed sleeve is provided with a mounting cavity suitable for the insertion of the insulating sleeve and the cutting knife tube part;
the fixed sleeve is connected with the handle part.
5. The integrated lancing, cutting and ablating instrument of claim 1, wherein said push-pull drive assembly comprises a movable sleeve fixedly sleeved on the portion of the hollow lance tube extending into the handle portion, a push-pull block fixedly connected with said movable sleeve, and a movable slot provided on the housing of the handle portion;
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 lancing, cutting and ablating instrument of claim 5, wherein said hollow lance comprises a large outer diameter tube fixedly connected to said movable sleeve and a small outer diameter tube connected to an end of said large outer diameter tube remote from said 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, cutting and ablating instrument of claim 1, wherein said handle portion is further provided with a cutting button for activating cutting energy and an ablating button for activating ablating energy; and
and a circuit board used for being matched with the cutting button and the ablation button is also arranged in the handle part.
8. The integrated lancing, cutting and ablating instrument of claim 7, wherein said hollow lance is connected to said circuit board by 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.
9. The integrated lancing, cutting and ablating instrument of claim 8, wherein said conductive spring comprises a pair of oppositely disposed metal springs adapted to grip a hollow lance; the pair of conductive reeds are connected with the circuit board through a connecting sheet; wherein the method comprises the steps of
The pair of conductive reeds are respectively provided with an arc-shaped groove in contact fit with the outer side wall of the hollow puncture needle tube.
10. The integrated lancing, cutting and ablating instrument of claim 1, further comprising a suction tube attached to a tail end of said handle portion remote from the lance; and
the suction tube is communicated with the tail end of the hollow puncture needle tube, which is far away from the puncture head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223199909.3U CN219126656U (en) | 2022-11-30 | 2022-11-30 | Puncture cutting ablation instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223199909.3U CN219126656U (en) | 2022-11-30 | 2022-11-30 | Puncture cutting ablation instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219126656U true CN219126656U (en) | 2023-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223199909.3U Active CN219126656U (en) | 2022-11-30 | 2022-11-30 | Puncture cutting ablation instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219126656U (en) |
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- 2022-11-30 CN CN202223199909.3U patent/CN219126656U/en active Active
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