CN211325562U - Tungsten needle electrode structure and operation electrode - Google Patents
Tungsten needle electrode structure and operation electrode Download PDFInfo
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- CN211325562U CN211325562U CN201921883045.2U CN201921883045U CN211325562U CN 211325562 U CN211325562 U CN 211325562U CN 201921883045 U CN201921883045 U CN 201921883045U CN 211325562 U CN211325562 U CN 211325562U
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Abstract
The utility model discloses a tungsten needle electrode structure and operation electrode, which belongs to the field of medical instruments, wherein the tungsten needle electrode structure comprises a stainless steel conducting rod and a tungsten needle rod, the right end of the conducting rod is coaxially provided with an axial mounting hole, the conducting rod is sleeved with a first insulating sleeve, and the left end of the conducting rod protrudes out of the left end of the first insulating sleeve; the needle rod comprises a needle rod main body and a conical needle point, the needle rod main body is of a bending structure and comprises a straight extending section and a straight bending section, the extending section is parallel to the conducting rod, the left end of the extending section is fixed in the axial mounting hole, the left end of the bending section is connected with the right end of the extending section, and an included angle is formed between the bending section and the extending section; the conical needle point is coaxially connected to the right end of the bending section and is 3mm long; the needle bar body positioned outside the conducting rod is sleeved with a second insulating sleeve. The utility model has the advantages of reasonable design, can enough guarantee the energy density under the low-power, prevent the heat damage, can also guarantee the sharpness under the high temperature.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to tungsten needle electrode structure and operation electrode.
Background
The operation electrode is also called as an electric knife pen, is a common minimally invasive instrument used in the surgical operation process of hospitals, is applied to clinic from 1920 years, and is gradually one of important modern medical equipment in an operation room at present. The operation electrode is an electrosurgical energy instrument, belongs to an operation instrument, has the functions of separation and cutting, and also has the functions of blood coagulation and hemostasis, gradually replaces the traditional scalpel in the operation, and is generally applied clinically.
However, the electrode bit used by the existing surgical electrode has a large contact area with tissues, and is easy to burn to the surrounding intact tissues when in use; meanwhile, when the electrode cutter head works under low power, the energy concentration degree of the electrode cutter head is not enough, so that the tissue is easily thermally damaged, and simultaneously, a large amount of smoke is generated to influence the operation of a doctor; in addition, traditional electrode tool bit is mostly stainless steel material and makes, and its sharpness under high temperature is not enough, cuts to congeal the operation time smooth and easy inadequately.
SUMMERY OF THE UTILITY MODEL
To the problem that the electrode tool bit low power that prior art exists down the energy concentration degree is low, easy firing tissue and high temperature under not sharp enough, the utility model aims to provide a tungsten needle electrode structure.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a tungsten needle electrode structure comprises a stainless steel conducting rod and a tungsten needle rod, wherein an axial mounting hole is coaxially formed in the right end of the conducting rod, a first insulating sleeve is sleeved outside the conducting rod, and the left end of the conducting rod protrudes out of the left end of the first insulating sleeve; the needle rod comprises a needle rod main body and a conical needle point, the needle rod main body is of a bent structure and comprises a straight extending section and a straight bending section, the extending section is parallel to the conductive rod, the left end of the extending section is fixed in the axial mounting hole, the left end of the bending section is connected to the right end of the extending section, and an included angle is formed between the bending section and the extending section; the conical needle point is coaxially connected to the right end of the bending section, and the length of the conical needle point is 3 mm; the needle bar body positioned at the outer side of the conducting rod is sleeved with a second insulating sleeve.
Furthermore, an isolation sleeve is arranged at the right end of the first insulation sleeve and is coated on the outer wall of the left end of the extension section.
Preferably, the isolation sleeve is integrally formed on the first insulating sleeve.
Preferably, the included angle between the bending section and the extending section is 45 degrees.
Preferably, the diameter of the conducting rod is 2.36mm, and the diameter of the needle rod body is 0.8 mm.
Preferably, the length of the conductive rod is 48.2mm, the length of the extending section extending out of the conductive rod is 13.3mm, and the total length of the bent section and the projection of the conical needle point on the axis of the conductive rod is 8.1 mm.
The utility model also discloses an operation electrode, it includes foretell tungsten needle electrode structure
By adopting the technical scheme, due to the arrangement of the conical needle point, the energy transmitted by the conducting rod can be quickly and efficiently concentrated at the tip of the conical needle point, so that the conical needle point can also gather enough energy under low power, thereby completing accurate cutting and blood coagulation operations, meanwhile, the conical needle point under high energy gathering avoids thermal damage to tissues, and the generation of smoke is also reduced; the arrangement of the conical needle point with the length of 3mm ensures that the contact area of the conical needle point and the tissue is small enough, on one hand, the damage to the peripheral intact tissue is effectively avoided, on the other hand, the smaller contact area also ensures that the tissue can obtain larger energy, and the cutting and coagulation effects are ensured; compared with the traditional stainless steel electrode tool bit, the conical needle point made of tungsten materials has the advantages that the tungsten needle electrode relies on the sharp and sharp needle point and the melting point as high as 3400 ℃, so that the conical needle point can also ensure enough mechanical strength at high temperature, the accurate sharp cutting coagulation in the operation is realized, and a doctor has better operation experience.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a cross-sectional view of a tungsten needle electrode structure of the present invention.
In the figure, 1-conductive rod, 2-needle bar, 21-needle bar body, 22-conical needle point, 211-extension segment, 212-bending segment, 3-first insulating sleeve, 31-isolation sleeve and 4-second insulating sleeve.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "back", etc. indicate the orientation or position relationship based on the description of the structure of the present invention shown in fig. 1, and are only for convenience of description of the present invention, but 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 technical scheme, the terms "first" and "second" are only used for referring to the same or similar structures or corresponding structures with similar functions, and are not used for ranking the importance of the structures, or comparing the sizes or other meanings.
In addition, unless expressly stated or limited otherwise, the terms "mounted" and "connected" are to be construed broadly, e.g., the connection may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two structures can be directly connected or indirectly connected through an intermediate medium, and the two structures can be communicated with each other. To those skilled in the art, the specific meanings of the above terms in the present invention can be understood in relation to the present scheme in specific terms according to the general idea of the present invention.
As shown in fig. 1, a tungsten needle electrode structure includes a conductive rod 1 made of stainless steel and a needle rod 2 made of tungsten. The conductive rod 1 is integrally cylindrical, an axial mounting hole is coaxially formed in the right end of the conductive rod 1, a first insulating sleeve 3 is sleeved outside the conductive rod 1, the length of the first insulating sleeve 3 is smaller than that of the conductive rod 1, the position of the first insulating sleeve 3 on the conductive rod 1 is suitable for enabling the right end of the conductive rod 1 to be completely wrapped, and the left end of the first insulating sleeve 3 is located outside the first insulating sleeve 3 so as to be conveniently connected with an external circuit; that is, the left end of the conductive rod 1 protrudes out of the left end of the first insulating sleeve 3; in this embodiment, the first insulating sheath 3 may be a teflon heat-shrinkable tube or a PE heat-shrinkable tube.
The needle bar 2 comprises a needle bar main body 21 with a circular cross section and a conical needle point 22, wherein the needle bar main body 21 is of a bent structure, the needle bar main body 21 specifically comprises a straight extending section 211 and a straight bent section 212, the extending section 211 is parallel to the conductive rod 1, the left end of the extending section 211 penetrates through and is fixed in the axial mounting hole, and the extending section 211 and the conductive rod 1 can be fixed through interference fit or viscose glue;
the left end of the bending section 212 is connected to the right end of the extending section 211, an included angle is formed between the bending section 212 and the extending section 211, the large end of the tapered needle point 22 is coaxially connected to the right end of the bending section 212, the large end face of the tapered needle point 22 is completely overlapped with the right end face of the bending section 212, and the length of the tapered needle point 22 is set to be 3mm, as shown by a dimension b in fig. 1.
In this embodiment, the needle shaft 2 is an integrally formed structure, and the tapered needle tip 22, the bending section 212 and the extending section 211 are integrally formed thereon. In this embodiment, the included angle between the bending section 212 and the extending section 211 is set to be 45 °, as shown by an angle a in fig. 1.
Since the present embodiment only needs the tapered needle point 22 as a working part, the needle bars 2 except the tapered needle point 22 need to be subjected to the isolation coating treatment; correspondingly, in the present embodiment, the needle body 21 located outside the conducting rod 1 is sleeved with the second insulating sleeve 4. The second insulating sleeve 4 can be made of Teflon heat-shrinkable tube or PE heat-shrinkable tube.
The needle rod 2 is arranged in the axial mounting hole in the conducting rod 1 in a penetrating way, so the end face of the right end of the conducting rod 1 needs to be further isolated; therefore, in this embodiment, the right end of the first insulating sleeve 3 is provided with an isolation sleeve 31, the isolation sleeve 31 is integrally formed on the first insulating sleeve 3, and extends rightward and covers the outer wall of the extending section 211, specifically, covers the second insulating sleeve 4 sleeved on the extending section 211.
In this embodiment, the diameter of the conducting rod 1 is set to be 2.36mm, the diameter of the needle rod body 2 is set to be 0.8mm, the length of the conducting rod 1 is set to be 48.2mm, the length of the extending section 211 extending out of the conducting rod 1 is set to be 13.3mm, and the total projection length of the bending section 212 and the conical needle point 22 on the axis of the conducting rod 1 is set to be 8.1 mm.
The utility model also discloses an operation electrode, also known as electric knife pen, it includes the shell, and the shaping has the handle of being convenient for to grip on this shell, and operation electrode is as prior art, and its structure is no longer repeated with the constitution this embodiment, only need with foretell tungsten needle electrode structure the conducting rod 1 install the shell on can.
When the multifunctional blood coagulation instrument is used, the shell is only needed to be held by hands, the conical needle point 22 is aligned to tissue to perform cutting or blood coagulation operation, and the conical needle point 22 can better gather energy under low power, so that thermal damage to the tissue due to insufficient heat is prevented, and smoke can be effectively prevented. The tapered tip 22 of tungsten also withstands high temperatures, ensuring mechanical strength at high temperatures. The conical needle point 22 with smaller size has the characteristic of sharpness, is widely applied to various surgical operations, and is suitable for open and minimally invasive surgery of general surgery, thyroid, mammary gland surgery, oral surgery, neurosurgery, cosmetic plastic surgery, otorhinolaryngology and cervical surgery, pediatric surgery, thoracic surgery, orthopedics, urology surgery, obstetrics and gynecology and the like.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (7)
1. A tungsten needle electrode structure is characterized in that: the conductive rod comprises a conductive rod made of stainless steel and a needle rod made of tungsten, wherein an axial mounting hole is coaxially formed in the right end of the conductive rod, a first insulating sleeve is sleeved outside the conductive rod, and the left end of the conductive rod protrudes out of the left end of the first insulating sleeve; the needle rod comprises a needle rod main body and a conical needle point, the needle rod main body is of a bent structure and comprises a straight extending section and a straight bending section, the extending section is parallel to the conductive rod, the left end of the extending section is fixed in the axial mounting hole, the left end of the bending section is connected to the right end of the extending section, and an included angle is formed between the bending section and the extending section; the conical needle point is coaxially connected to the right end of the bending section, and the length of the conical needle point is 3 mm; the needle bar body positioned at the outer side of the conducting rod is sleeved with a second insulating sleeve.
2. The tungsten needle electrode structure of claim 1, wherein: the right-hand member of first insulating bush is provided with isolation sleeve, isolation sleeve cladding is in on the left end outer wall of extension.
3. The tungsten needle electrode structure of claim 2, wherein: the isolation sleeve is integrally formed on the first insulating sleeve.
4. The tungsten needle electrode structure of claim 1, wherein: the included angle between the bending section and the extending section is 45 degrees.
5. The tungsten needle electrode structure of claim 1, wherein: the diameter of conducting rod is 2.36mm, the diameter of needle bar main part is 0.8 mm.
6. The tungsten needle electrode structure of claim 5, wherein: the length of the conducting rod is 48.2mm, the length of the extending section extending out of the conducting rod is 13.3mm, and the total length of the bent section and the projection of the conical needle point on the axis of the conducting rod is 8.1 mm.
7. A surgical electrode, characterized by: comprising a tungsten needle electrode structure according to any of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921883045.2U CN211325562U (en) | 2019-11-04 | 2019-11-04 | Tungsten needle electrode structure and operation electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921883045.2U CN211325562U (en) | 2019-11-04 | 2019-11-04 | Tungsten needle electrode structure and operation electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211325562U true CN211325562U (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921883045.2U Active CN211325562U (en) | 2019-11-04 | 2019-11-04 | Tungsten needle electrode structure and operation electrode |
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| Country | Link |
|---|---|
| CN (1) | CN211325562U (en) |
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2019
- 2019-11-04 CN CN201921883045.2U patent/CN211325562U/en active Active
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