CN219250407U - Telescopic bipolar radiofrequency ablation electrode - Google Patents

Abstract

The utility model belongs to the technical field of operation electrodes, and discloses a telescopic bipolar radiofrequency ablation electrode, which comprises a handle assembly and an active electrosurgical electrode; the handle assembly is made of plastic materials and is provided with a first main body and a second main body, the rear end of the inner side of the first main body is provided with a mounting groove, and the front end of the second main body is slidably mounted in the inner side of the mounting groove; a spring device is clamped between the front end of the second main body and the bottom of the mounting groove; grooves are formed in the middle of the first main body and the second main body, and the active electrosurgical electrode is sleeved inside the grooves. The handle component of the utility model adopts plastic material bodies, so that the cost is greatly reduced, and the convenience and the assembly efficiency of injection molding of products are improved by improving the structure; the utility model has reasonable structural design, simple and reasonable handle structure, convenient operation and use, convenient product assembly and relatively low injection molding cost.

Description

Telescopic bipolar radiofrequency ablation electrode

Technical Field

The utility model belongs to the technical field of surgical electrodes, and particularly relates to a telescopic bipolar radiofrequency ablation electrode.

Background

Currently, surgical electrodes are used to treat tissue in a surgical procedure commonly known as Minimally Invasive Surgery (MIS). One of the features described and claimed in the prior art is an electrosurgical handpiece that can be used in MIS and reduces the risk of overheating leading to possible injury to the patient. This is achieved by an electrosurgical handpiece that is bipolar in operation and configured for MIS. Bipolar operation limits electrosurgical current to a small active area between the active ends of the bipolar electrodes, thereby reducing the likelihood of overheating that could damage patient tissue. Moreover, the location of the active area may be controlled to avoid patient tissue that may be more susceptible to overheating. The handpiece is provided with a dual compartment insulated elongated tube, each compartment for receiving one of the two wires of the bipolar electrode. The electrodes for MIS are preferably configured with flexible ends that are controllable by the surgeon, allowing the surgeon to manipulate the ends as desired during the surgical procedure. The flexible end is achieved by weakening at the end of the electrode housing and providing a pull cord or wire connected to the weakened housing end and having a mechanism for the surgeon to pull cord or pull cord at the opposite end. The wire bends the end of the housing to the desired position. This feature allows the surgeon to position the active electrode tip at an optimal location for treatment, which may be configured as a bipolar electrode for certain purposes. Other structures are also discussed that provide easier bending of the handpiece end, as well as the use of memory metals to control the position of the extension electrode.

One limitation of the handpiece construction described in these prior applications is the relatively high manufacturing cost, which hinders single use of the handpiece by the surgeon. Today, surgeons prefer disposable instruments, if available, which can be discarded after a single use and no longer require sterilization and sterile packaging for future use.

Through the above analysis, the problems and defects existing in the prior art are as follows: the surgical electrode of the prior art has a complex structure, is difficult to assemble and has high cost, and has relatively high manufacturing cost, thus preventing a surgeon from singly using the handpiece.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model provides a telescopic bipolar radiofrequency ablation electrode. Comprising a squeeze handle structure with a movable body, a handle assembly and an active electrosurgical electrode within the handle assembly are realized with a symmetrical structure (two-part) or an up-down structure (four-part), by squeezing the handle, selectively extendable and retractable relative to the handle.

The utility model is realized in that a scalable bipolar radiofrequency ablation electrode is provided with:

a handle assembly and an active electrosurgical electrode;

the handle assembly is made of plastic materials and is provided with a first main body and a second main body, the rear end of the inner side of the first main body is provided with a mounting groove, and the front end of the second main body is slidably mounted in the inner side of the mounting groove;

a spring device is clamped between the front end of the second main body and the bottom of the mounting groove;

grooves are formed in the middle of the first main body and the second main body, and the active electrosurgical electrode is sleeved inside the grooves.

Further, the active electrosurgical electrode is bipolar and has two electrically active ends, functioning through two insulated positive and negative electrodes, resembling a guided power supply.

Further, the outer side of the active electrosurgical electrode is sleeved with an outer tube, and the outer tube is arranged in the grooves of the first main body and the second main body.

Further, the limiting groove is formed in the front end inside the first main body, and one end of the outer tube is clamped in the limiting groove.

Further, an electrode plug is mounted at the rear end of the interior of the second body, and the electrode plug is connected with the rear end of the active electrosurgical electrode through an electric terminal device.

Further, the contact end of the active electrosurgical electrode with the electrical terminal device has an exposed contact surface, the electrical terminal device being provided with a contact member that mates with the contact surface.

Further, an electric wire is arranged in the middle of the contact member and is realized by penetrating a wire electrode in the integrated double-channel tube, a thin end head is arranged at the front end of the contact member, the electric wire penetrates out of the middle of the thin end head, a stripping end is arranged at the front end of the electric wire, the stripping end is an electric exposed part with the middle exposed, and the stripping end is in contact with an exposed contact surface of the active electrosurgical electrode.

Further, the first body and the second body are in a press-fit or adhesive relationship, and the contact member is in a press-fit or adhesive relationship with the second body.

Further, the lower end of the handle assembly is connected with a flexible handle, and two ends of the flexible handle are respectively connected with the first main body and the second main body.

In combination with the above technical solution and the technical problems to be solved, please analyze the following aspects to provide the following advantages and positive effects:

first, aiming at the technical problems in the prior art and the difficulty in solving the problems, the technical problems solved by the technical proposal of the utility model are analyzed in detail and deeply by tightly combining the technical proposal to be protected, the results and data in the research and development process, and the like, and some technical effects brought after the problems are solved have creative technical effects. The specific description is as follows: the technical scheme is that the product appearance, the use structure and the function are unchanged, and the design structure is changed (through the symmetrical structure and the upper and lower combined structure), so that the product is simple in structure, convenient to assemble, high in product strength and high in stability, and the cost of the whole process of the product is greatly reduced.

The handle component of the utility model adopts plastic material bodies, so that the cost is greatly reduced, and the convenience and the assembly efficiency of injection molding of products are improved by improving the structure. The original parts are changed into two or four parts, the product integration is better, and the bipolar radiofrequency ablation electrode can be used as a disposable bipolar radiofrequency ablation electrode, and is mainly suitable for gasifying, cutting, ablating, stopping bleeding and the like of tissues in orthopedic surgery.

Secondly, the technical scheme is regarded as a whole or from the perspective of products, and the technical scheme to be protected has the following technical effects and advantages:

the utility model has reasonable structural design, simple and reasonable handle structure, convenient operation and use, convenient product assembly and relatively low injection molding cost.

Drawings

FIG. 1 is a schematic diagram of a symmetrical structure of a scalable bipolar radiofrequency ablation electrode provided by an embodiment of the present utility model;

FIG. 2 is a semi-split view of a symmetrical structure of a scalable bipolar radiofrequency ablation electrode provided by an embodiment of the present utility model;

FIG. 3 is a fully split view of a symmetrical structure of a scalable bipolar radiofrequency ablation electrode provided by an embodiment of the present utility model;

fig. 4 is a schematic diagram showing the upper and lower structures of a scalable bipolar radiofrequency ablation electrode according to an embodiment of the present utility model;

fig. 5 is a top-bottom half-split view of a scalable bipolar radiofrequency ablation electrode provided by an embodiment of the present utility model;

fig. 6 is a top-bottom half-split view of a scalable bipolar radiofrequency ablation electrode provided by an embodiment of the present utility model;

fig. 7 is a top-bottom structure full split view of a scalable bipolar radiofrequency ablation electrode provided by an embodiment of the present utility model;

FIG. 8 is a schematic diagram of a compression spring structure of a scalable bipolar RF ablation electrode provided by an embodiment of the present utility model;

fig. 9 is a schematic view of a first body and a first body structure according to an embodiment of the present utility model.

Fig. 10 is a split view of a first body and a first body provided by an embodiment of the present utility model.

In the figure: 1. a first body; 2. a second body; 3. an electrode plug; 4. a flexible handle; 5. an active electrosurgical electrode; 6. an outer tube; 7. an electrical terminal device; 8. a compression spring; 9. a mounting groove; 10. a groove; 11. and a limit groove.

Detailed Description

The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

1. The embodiments are explained. In order to fully understand how the utility model may be embodied by those skilled in the art, this section is an illustrative embodiment in which the claims are presented for purposes of illustration.

The technical scheme is that the product appearance is characterized in that under the premise of unchanged using structure and function, the design structure is changed (through a symmetrical structure and an upper-lower combined structure), so that the structure has the advantages that before the product is completely installed, the product can be firstly assembled through parts, debugging and verification are carried out after the assembly, other parts are assembled after the verification has no problem, for example, an electrode part is firstly installed at the other end of a certain handle, the length is cut, debugged, glued, extruded, welded and hot melted, and finally the product is assembled after the other part of the product is assembled.

The handle component in the telescopic bipolar radiofrequency ablation electrode provided by the embodiment of the utility model is provided with a first main body 1 and a second main body 2, the rear end of the inner side of the first main body 1 is provided with a mounting groove 9, and the front end of the second main body 2 is slidably arranged on the inner side of the mounting groove 9; a groove 10 is formed in the middle of the first main body 1 and the second main body 2, and the active electrosurgical electrode 5 is sleeved inside the groove 10. The outer side of the active electrosurgical electrode 5 is sleeved with an outer tube 6, and the outer tube 6 is mounted in the grooves 10 of the first body 1 and the second body 2.

The active electrosurgical electrode 5 in the embodiments of the present utility model is bipolar and has two electroactive terminals.

In the embodiment of the utility model, the front end of the inner part of the first main body 1 is provided with a limiting groove 11, and one end of the outer tube 6 is clamped in the limiting groove 11.

The electrode plug 3 is mounted at the rear end of the interior of the second main body 2 in the embodiment of the utility model, and the electrode plug 3 is connected with the rear end of the active electrosurgical electrode 5 through an electric terminal device 7.

The contact ends of the active electrosurgical electrode 5 and the electrical terminal device 7 in the embodiments of the utility model have exposed contact surfaces, the electrical terminal device being provided with contact members which mate with the contact surfaces. The electric wire is arranged in the middle of the contact member, the front end of the contact member is provided with a thin end head, the electric wire penetrates out of the middle of the thin end head, the front end of the electric wire is provided with a stripping end, the stripping end is an electric exposed part with the middle exposed, and the stripping end is in contact with the exposed contact surface of the active electrosurgical electrode.

The first body 1 and the second body 2 in the embodiment of the utility model are in a press-fit or adhesive relationship, and the contact member is in a press-fit or adhesive relationship with the second body 2.

The lower end of the handle component in the embodiment of the utility model is connected with a flexible handle 4, and two ends of the flexible handle 4 are respectively connected with the first main body 1 and the second main body 2.

As shown in fig. 1 to 3, the telescopic bipolar radiofrequency ablation electrode with the symmetrical structure provided by the embodiment of the utility model achieves the use and structural requirements of the product in a symmetrical manner. The product is of a symmetrical structure from the appearance, and the handle is of a flexible mode, so that the symmetrical structure is used, and the advantages in the number of parts are obvious. When the product is injection molded, the demolding angle (also the handle angle) is larger, the mold is convenient to process, after the part injection molding is finished, the handle of the other half part of the product is extruded through assembly, so that the first main body 1 and the second main body 2 are convenient to match (figure 2), when the debugging product has no abnormality in function, the other half is combined according to the same method, the other half is assembled with the assembled half through limit fit, the final finished product is assembled through glue or ultrasonic wave, and when a user presses the flexible handle 4, the first main body 1 and the second main body 2 can move forwards and backwards, so that the product using function is realized, and through the above description, the product structure can be changed from six parts on the current market into two parts, so that the stability of the product is greatly improved, the assembling convenience is improved, and the finished product is reduced.

As shown in fig. 4 to 7, in the telescopic bipolar radiofrequency ablation electrode with the up-down structure provided by the embodiment of the utility model, the handle assembly is composed of four parts, the lower half part of the first main body 1 and the flexible handle 4 are used as one part, and as shown in fig. 6, the lower half part of the first main body and the lower half part of the second main body 2 are combined through glue (through the cooperation of the other side of the flexible handle and the solidification of the glue), the flexible handle is pressed by hands to form a lower half part handle assembly capable of moving back and forth, and after the active electrosurgical electrode is assembled (fig. 5), the upper half parts of the first main body and the second main body are assembled again respectively after the product function is verified to be abnormal, and the upper half parts of the first main body and the second main body are combined through the limiting combination and the action of the glue to form an intact product. Also, through the reduction of parts, the biggest advantage is that when the product is not fully assembled, whether the function of the product is normal can be verified in advance, the bad of process species is avoided, the bad of final finished products is caused because the bad is not found in time, and the structural advantage is obvious.

In a preferred embodiment, the handle end of the handpiece is preferably constructed of a known plastic, and thus can be molded in several parts, for example, and simply assembled for assembly of plastic components as known in the art by being forcibly fitted and/or adhered or snapped together with a suitable adhesive. Preferably, all parts of the handle end, except the electrical terminals, optional metal springs and electrode assembly, are made of inexpensive plastic.

In the preferred embodiment, the automatic retraction of the electrodes is caused by an internal compression spring 7. Alternatively, the plastic handle may be configured with built-in resilience, tending to return it to the open position shown. An important advantage of the described structure is its inexpensive structure and manufacture.

The structure of the present utility model may provide bipolar operation alone or in the same handpiece, with a portion of the present utility model held in the hand of the surgeon and operable by the surgeon to extend and retract the flexible tip.

In this application, the electrode configuration remains substantially the same. It may include bending the flexible end of the outer tube housing for the electrode using a pull wire while extending the electrode from the end of the outer tube. Alternatively, preferably, the outer tube end is not flexible, but the electrode distal end is constructed of a memory metal or has a pre-curved profile such that when extended from its outer tube housing it assumes a pre-set curved or straight position which allows the surgeon to more easily reach the electrode active end behind the patient site.

The working principle of the utility model is as follows: through integrated design, simplified product structure, this technical scheme lies in the product appearance, uses under the unchangeable prerequisite of structure and function, through changing the design structure (through symmetrical structure and upper and lower integrated structure), has realized that product structure is simple, and the equipment is convenient, and product strength strengthens, and stability is higher, very big reduction product whole process's cost. The utility model, when in use, after assembling the first body 1 and the second body 2, also fulfils the function of a handle, which squeezable handle associates the first body 1 and the second body 2 such that when the handle is not squeezed the first body 1 and the second body 2 assume a first position relative to each other and when the handle is squeezed the first body 1 is in a first position relative to each other. The second bodies 2 assume a second position relative to each other. When the electrical terminal device is activated and the handle is squeezed, the first body 1 and the second body 2 assume their second positions, and the electroactive ends of the electrodes extend beyond the distal second end of the outer tube and are capable of providing electrosurgical current when applied to a patient.

2. Application example. In order to prove the inventive and technical value of the technical solution of the present utility model, this section is an application example of the specific product or related technology application of the claim technical solution.

The prior structure can be assembled by part before the product is completely installed, debugging and verification are carried out after the assembly, and after the verification is carried out, other parts are assembled, such as the electrode part is firstly installed at the other end of the determined handle, the length is cut, debugged, glued, extruded, welded and hot melted, and the assembly of the product is finally completed at the other part of the assembled product.

Products on the market at present are composed of six to seven parts, and from the perspective of the parts, the assembly strength is relatively complex, and through simplifying the product structure, creatively optimizing the product structure and the number of the parts, the number is reduced to four to two, the assembly and the product debugging are also convenient, the product strength is higher, and the performance is better.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present utility model will be apparent to those skilled in the art within the scope of the present utility model.

Claims (9)

1. A scalable bipolar radiofrequency ablation electrode, characterized in that it is provided with:

a handle assembly and an active electrosurgical electrode;

the handle assembly is made of plastic materials and is provided with a first main body and a second main body, the rear end of the inner side of the first main body is provided with a mounting groove, and the front end of the second main body is slidably mounted in the inner side of the mounting groove;

a spring device is clamped between the front end of the second main body and the bottom of the mounting groove;

grooves are formed in the middle of the first main body and the second main body, and the active electrosurgical electrode is sleeved inside the grooves.

2. The retractable bipolar radiofrequency ablation electrode of claim 1, wherein the active electrosurgical electrode is bipolar and has two electrically active ends.

3. The retractable bipolar radiofrequency ablation electrode of claim 1, wherein the active electrosurgical electrode is externally sleeved with an outer tube that fits within the grooves of the first body and the second body.

4. The retractable bipolar radiofrequency ablation electrode of claim 3, wherein the front end of the interior of the first body is provided with a limiting groove, and one end of the outer tube is clamped in the limiting groove.

5. The retractable bipolar radiofrequency ablation electrode of claim 1, wherein the second body has an electrode plug mounted at the inner rear end thereof, the electrode plug being connected to the active electrosurgical electrode rear end by an electrical terminal device.

6. The retractable bipolar radiofrequency ablation electrode of claim 5, wherein the contact end of the active electrosurgical electrode and the electrical terminal device has an exposed contact surface, the electrical terminal device being provided with a contact member that mates with the contact surface.

7. The retractable bipolar radiofrequency ablation electrode of claim 6, wherein a wire is disposed intermediate the contact members, the contact member front end is provided with a thin tip, the wire passes out intermediate the thin tip, the wire front end is provided with a stripping end, the stripping end is an intermediate exposed electrically exposed portion, and the stripping end is in contact with an exposed contact surface of the active electrosurgical electrode.

8. The retractable bipolar radiofrequency ablation electrode of claim 6, wherein the first body and the second body are in a press-fit or adhesive relationship and the contact member is in a press-fit or adhesive relationship with the second body.

9. The retractable bipolar radiofrequency ablation electrode of claim 1, wherein a flexible grip is attached to the lower end of the handle assembly, the flexible grip being attached at each end to the first body and the second body.

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