WO2016051918A1 - 外科手術用エネルギーデバイス - Google Patents
外科手術用エネルギーデバイス Download PDFInfo
- Publication number
- WO2016051918A1 WO2016051918A1 PCT/JP2015/070066 JP2015070066W WO2016051918A1 WO 2016051918 A1 WO2016051918 A1 WO 2016051918A1 JP 2015070066 W JP2015070066 W JP 2015070066W WO 2016051918 A1 WO2016051918 A1 WO 2016051918A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- energy device
- base
- coating
- polysiloxane
- surgical energy
- Prior art date
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1442—Probes having pivoting end effectors, e.g. forceps
- A61B18/1445—Probes having pivoting end effectors, e.g. forceps at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1402—Probes for open surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/08—Materials for coatings
- A61L31/082—Inorganic materials
- A61L31/088—Other specific inorganic materials not covered by A61L31/084 or A61L31/086
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/08—Materials for coatings
- A61L31/10—Macromolecular materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/0084—Material properties low friction
- A61B2017/00849—Material properties low friction with respect to tissue, e.g. hollow organs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
- A61B2017/320069—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic for ablating tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
- A61B2017/320082—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic for incising tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00107—Coatings on the energy applicator
- A61B2018/0013—Coatings on the energy applicator non-sticking
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00601—Cutting
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00607—Coagulation and cutting with the same instrument
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00964—Features of probes
- A61B2018/0097—Cleaning probe surfaces
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1412—Blade
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1442—Probes having pivoting end effectors, e.g. forceps
- A61B2018/1452—Probes having pivoting end effectors, e.g. forceps including means for cutting
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1442—Probes having pivoting end effectors, e.g. forceps
- A61B2018/1462—Tweezers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2420/00—Materials or methods for coatings medical devices
- A61L2420/08—Coatings comprising two or more layers
Definitions
- the present invention relates to a surgical energy device having a function of incising, coagulating, and stopping hemostasis by applying energy represented by heat generated by microwaves, high frequencies, or ultrasonic waves to a living subject.
- a surgical energy device microwaves, high frequency waves, or ultrasonic waves are transmitted from a working region part to a living body target part, and the living tissue is incised by the action, bleeding and coagulation (hemostasis) from the tissue, or incision. And used for simultaneous coagulation.
- the impedance, discharge characteristics, conductivity, thermal conductivity, and energy transfer characteristics of the electrode change as the living tissue adheres to the work area during treatment of the living tissue.
- smoking may occur and treatment properties such as sharpness, coagulation performance, and hemostasis performance may be reduced.
- a conventional surgical energy device is formed by forming irregularities on the surface of a metal working region, filling the recess with a low surface energy resin such as a fluororesin, and making the surface relatively smooth. It consists of a portion having electrical conductivity and a portion having a low surface energy resin and having an insulating property and low surface energy.
- the fixation of the living tissue is reduced by partially exposing the fluorine-based polymer embedded in the irregularities on the surface of the working region.
- thermoplastic fluororesin disposed on the surface of the working region portion is strongly pressed against the living tissue, and the exposed metal portion is weakly pressed. Tissue sticking is reduced.
- a conventional surgical energy device is an uppermost coated fluoropolymer comprising a primer layer containing a polysiloxane resin on the surface of a metal working region roughened by blasting and a silicone elastomer base polymer. It consists of The thickness of the uppermost coating is not uniform, the edge of the surgical blade is thin, and the main surface has a thickness of 76-510 ⁇ m.
- the main surface is cut and solidified by preferentially conducting high-frequency waves at the edges where the coating is thin, and the main surface where high-frequency waves are not conductive is affected by heat. Therefore, the adherence of living tissue is reduced.
- Patent Document 4 a conventional surgical energy device is composed of an oxide layer obtained by oxidizing the surface of a stainless steel working region by heat treatment and a release material containing silicone.
- adhesion of the living tissue is reduced by obtaining a coating with a non-uniform thickness and at the same time providing an oxide layer. Has also improved.
- thermoplastic fluororesin for preventing fixation of living tissue.
- the thermoplastic fluororesin is formed by heating and pressure bonding at 1 to 4 MPa at 320 to 340 ° C. for 1 to 30 minutes, which may cause deformation of the base material. There is a problem that it cannot be done.
- a primer layer containing a polysiloxane resin and a top coat fluoropolymer composed of a silicone elastomer-based polymer are coated.
- the blade edge portion is thin and the flat portion is thick.
- energy is conducted at the edge part where the film thickness is thin, so that the incision and coagulation of the living tissue can be performed, and the flat part where the film thickness is thick is thermally insulated to prevent the living tissue from sticking. it can.
- the conduction portion cannot be arbitrarily designed.
- the manufacturing method implementation example describes a process of sandblasting with an aluminum oxide medium, which has a complicated shape. There is a problem that cannot be applied.
- a release material containing silicone is coated on the surface of the stainless steel working region portion in order to prevent fixation of living tissue.
- the base material before coating with silicone does not require an intermediate layer or a roughened layer, and the working region surface of the stainless steel metal substrate is 750 ° in the embodiment. It is described that an iron oxide layer having the best adhesion is formed by heat treatment with F for 30 minutes.
- this method has a problem that the base material may be deformed or rusted easily due to sensitization.
- the base material is also limited to an iron-type material.
- the present invention has been made to solve the above-described problems of the prior art, and provides a coating layer that has good adhesion and can be applied to complex shapes, and prevents adherence of living tissue.
- the aim is to obtain a surgical energy device that can be used.
- a coating layer formed on the outer peripheral surface of a base material constituting the operation region part is based on A base coating formed on the material and a top coating formed on the base coating, wherein the base coating is silicon oxide or a mixture comprising silicon oxide, and the top coating comprises polysiloxane or polysiloxane.
- the adhesion of the living tissue to the working region is suppressed by the water- and oil-repellent action of the uppermost film having a low surface energy.
- the basic coating strongly adheres to the base material and the uppermost coating, so that good adhesion can be obtained.
- the base film can be formed at room temperature or about 150 ° C., deformation of the base material due to heat influence can be suppressed.
- the surface roughness of the base material constituting the working region portion is 3 ⁇ m or less, preferably 0.01 to 1.0 ⁇ m in terms of Ra value before the coating layer is formed. It is.
- it is effective for suppressing fixation of living tissue by adjusting to an arbitrary surface by electrolytic polishing or buffing, blasting using spherical or polygonal ceramic abrasive grains, or laser irradiation.
- Various surface shapes and roughness can be selected.
- the base film has a thickness of 0.05 to 10 ⁇ m, preferably 0.1 to 1.0 ⁇ m.
- the basic coating is a thin film, it can be uniformly formed on a substrate having a complicated shape.
- the uppermost film made of polysiloxane or a compound containing polysiloxane or a compound containing polysiloxane obtained by partially fluorinating can prevent the living tissue from sticking with a film thickness of 0.1 ⁇ m or more.
- the base material constituting the working region portion is a metal, preferably stainless steel, titanium or a titanium alloy, or a resin, preferably polyimide or PEEK resin.
- the surgical energy device having the above-described configuration can be generally handled as a biosafety material, and good adhesion to the basic coating can be obtained.
- region part can be applied besides these base materials, and is not limited to these base materials.
- the energy transmitted from the working region portion to the living tissue is a microwave, a high frequency, or an ultrasonic wave.
- the adhesion of the living tissue can be suppressed by covering the above-described coating layer. .
- the surgical energy device is a scalpel, a lever, a forceps, and a snare used in a surgical operation.
- a coating layer that suppresses adherence of living tissue is uniformly coated on the entire circumferential surface of the working region, thereby enabling a scalpel, a scissors, a forceps, and a snare particularly used in surgery. It can be applied to.
- (A), (b) is a figure for demonstrating the structure of the electric knife as an example of the energy device for surgery of this invention, respectively. It is sectional drawing which shows the coating layer of a test piece. After forming the base film made of silicon oxide and the top film made of a compound containing fluorinated polysiloxane on the base material of the working area of the scalpel, scissors, forceps and snare, the cross-sectional structure of each film was examined with an electron microscope. It is a microscope picture which shows the result observed by expanding.
- an electric knife 1 as an example of the present invention includes an electric knife main body 2 and an operating region portion 3 provided to protrude from the electric knife main body 2.
- the working area 3 of the electric scalpel 1 is brought close to a living body (not shown) to be treated, and microwaves, high frequencies, or ultrasonic waves are transmitted from the working area 3 to the living body. It has been used to dissect tissue, coagulate blood from the tissue (hemostasis), or perform incision and coagulation simultaneously.
- the feature of the present invention lies in the configuration of the operation region 3 shown in FIGS. 1 (a) and 1 (b). That is, in this invention, as shown in FIG.1 (b), the action
- the thickness of the base coating 12 is preferably 0.1 to 10 ⁇ m, more preferably 0.1 to 1.0 ⁇ m.
- the basic coating 12 since the basic coating 12 is a thin film, it can be uniformly formed on the substrate 11 having a complicated shape.
- the uppermost film made of polysiloxane or a compound containing polysiloxane or a compound containing polysiloxane obtained by partially fluorinating can prevent the living tissue from sticking with a film thickness of 0.1 ⁇ m.
- the thickness of the uppermost film 13 can be adjusted by applying it several times, but a practically sufficient effect can be obtained at 0.1 ⁇ m.
- the surface roughness of the base material 11 constituting the working region portion 3 is preferably 3 ⁇ m or less, more preferably 0.01 to 1.0 ⁇ m in terms of Ra value before the coating layer 14 is formed. is there.
- the base 11 is adjusted to an arbitrary surface by electrolytic polishing or polishing by buffing, blasting using spherical or polygonal ceramic abrasive grains, or laser irradiation, and a surface that is effective for suppressing adherence of living tissue. The shape and roughness can be selected.
- region part 3 is a metal, Preferably stainless steel, titanium, or a titanium alloy, or resin, Preferably it is a polyimide and PEEK resin. In this preferred example, it can be generally handled as a biosafety material, and good adhesion to the base coating 12 can be obtained.
- the energy transmitted to the operation region portion 3 is a microwave, a high frequency, or an ultrasonic wave.
- the surgical energy device can be applied to a scalpel, a lever, a forceps, or a snare used in a surgical operation.
- the surgical energy device having the above-described configuration can be applied particularly to the above-described product group by uniformly coating the entire peripheral surface of the working region with a coating layer that suppresses the adherence of living tissue.
- the base film 12 on the base material 11 various conventionally known methods can be used. For example, flow coating, dipping, spraying, CVD, or the like can be used.
- a test piece having a coating layer shown in FIG. 2 was produced by simulating the working region 3 of the electric knife 1 as the surgical energy device shown in FIGS. 1 (a) and 1 (b).
- the surface of the base material 21 made of SUS304 steel is blasted to form a pretreatment portion 22 having a surface roughness Ra of 1 ⁇ m.
- a basic coating 23 made of silicon oxide was formed by ethyl silicate (TEOS, for example, manufactured by Kosei Chemical Co., Ltd.) at 100 ° C.
- TEOS ethyl silicate
- an uppermost coating 24 made of a mixture containing polysiloxane fluorinated by dipping was formed on the base coating 23.
- the test piece of the example of the present invention was produced by the above process. Moreover, the test piece which does not form the base film 23 and the uppermost film 24 among the test pieces of the said invention example as a test piece of a comparative example, and the test piece which does not form the uppermost film 24 were prepared.
- the contact angle of water and the contact angle of rapeseed oil were determined with respect to the surface of the coating layer in the prepared specimens of the present invention and the comparative example. The contact angle was measured by a liquid suitable method according to JIS R 3257. The results are shown in Table 1 below.
- the water-repellent and oil-repellent action of the lower surface energy uppermost coating 24 can suppress the adherence of the living tissue compared to the test piece of the comparative example. Recognize.
- Example 2 The basic film in the coating layer of the present invention was examined.
- the surface of a base material made of SUS304 steel having a size of 25 mm (width) ⁇ 100 mm (length) ⁇ 1 mm (thickness) was pretreated, and then a basic coating made of silicon oxide was coated, followed by fluorination
- the test piece of the present invention in which the uppermost film made of the compound containing polysiloxane was formed, the base film made of iron oxide was formed by heat treatment, and then the uppermost film made of the compound containing fluorinated polysiloxane was formed.
- test piece of the example of this invention and the test piece of the comparative example which formed the uppermost film which consists of a compound containing the directly fluorinated polysiloxane were prepared.
- the prepared test pieces of the present invention and comparative examples were evaluated for adhesion by a rubbing test (ASTM D4752). The results are shown in Table 2.
- test piece of the inventive example having the basic coating made of silicon oxide is compared with the comparative test piece in which the basic coating was not formed or the comparative test sample in which iron oxide by heat treatment was formed as the basic coating. It can be seen that the number of reciprocations of the rubbing test is large and the coating layer has high adhesion.
- test piece of the comparative example in which the iron oxide formed by heat treatment was formed as the base film was deformed when the base film was formed.
- Example 3 The suitable example of the film thickness of the basic film in the coating layer of this invention was examined.
- the surface of the base material made of SUS304 steel having a rod shape of 2.7 mm (diameter) ⁇ 10 mm (length) was pretreated, and then the film thickness of the base coating made of silicon oxide was 0.01 ⁇ m to After the coating was changed in the range of 15.0 ⁇ m, a test piece on which an uppermost film made of a compound containing fluorinated polysiloxane was formed was prepared. Each of the prepared test pieces was inserted into a pig liver and allowed to conduct microwaves at 50 W for 30 seconds, and then the coagulation property and the degree of scorching of the tissue were evaluated. The results are shown in Table 3.
- the film thickness of the base film made of silicon oxide is preferably in the range of 0.05 to 10.0 ⁇ m.
- Example 4 The suitable example of the pre-processing with respect to the base material of this invention was examined. 2.7mm (diameter) x 10mm (length) rod-shaped base material made of SUS304 steel, electrolytic polishing or buffing, blasting using spherical or polygonal ceramic abrasive grains, laser irradiation, arbitrary After providing the surface roughness Ra, a test piece was prepared in accordance with Example 1 in which a base film made of silicon oxide and an uppermost film made of a compound containing fluorinated polysiloxane were formed. Each of the prepared test pieces was inserted into a pig's liver and subjected to microwaves at 50 W for 30 seconds, and then the degree of scoring was evaluated. The results are shown in Table 4.
- the surface roughness Ra of the substrate is Ra: 3.0 ⁇ m or less, more preferably Ra: 0.01 to 1.0 ⁇ m, the degree of scorching of the liver tissue is particularly small, and the living body It can be seen that tissue sticking can be suppressed. Therefore, it can be seen that the surface roughness of the substrate is preferably Ra: 3.0 ⁇ m or less, and more preferably Ra: 0.01 to 1.0 ⁇ m.
- Example 5 The suitable example of the material of the base material of this invention was examined. As shown in Table 5 below, a base film made of silicon oxide and a fluorinated polysiloxane were formed on a 25 mm (width) ⁇ 100 mm (length) ⁇ 1 mm (thickness) base material with different materials according to Example 1. A test piece on which an uppermost film made of a compound containing s was formed was prepared. Each of the prepared test pieces was heated to 100 ° C. with a hot plate, and then a pig liver piece was placed on the test piece, and the degree of scoring was evaluated. The results are shown in Table 5.
- the base film and the uppermost film can be formed regardless of the material of the base material, and the adherence of the living tissue can be suppressed.
- stainless steel, titanium, titanium alloy, polyimide, PEEK resin, or the like is suitable.
- Example 6 The suitable example of the energy supplied to the action
- a working area part of a surgical energy device using microwave, high frequency, ultrasonic wave or electric energy a base coating made of silicon oxide and a compound containing a fluorinated polysiloxane are formed on a substrate according to Example 1. After forming the coating layer consisting of the upper film, the liver of the pig was incised and coagulated, and the degree of burning was evaluated. The results are shown in Table 6.
- Example 7 According to Example 1, a base film made of silicon oxide and a top film made of a compound containing fluorinated polysiloxane were formed on the base material of the working area part of a scalpel, scissors, forceps and snare used for surgery. Thereafter, the cross-sectional structure of each coating was observed. The results are shown in FIG. From the results of FIG. 3, it can be seen that a base film made of silicon oxide and a top film made of a compound containing fluorinated polysiloxane can be formed regardless of the shape of the operating region of the surgical energy device.
- silicon oxide was used as the base film, but the same result as in the above example could be obtained even when a mixture containing silicon oxide instead of silicon oxide was used as the base film.
- the compound containing fluorinated polysiloxane was used as the uppermost film, the above-described embodiment can be used even if a compound containing polysiloxane or polysiloxane is used instead of the compound containing fluorinated polysiloxane as the uppermost film. Similar results were obtained.
- a coated surgical energy device capable of suppressing the fixation of a living tissue in a working region portion of the surgical energy device, and to perform a surgical operation.
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Otolaryngology (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Dentistry (AREA)
- Mechanical Engineering (AREA)
- Surgical Instruments (AREA)
- Electromagnetism (AREA)
Abstract
Description
図1(a)、(b)に示した外科手術用エネルギーデバイスとしての電気メス1の作動領域部3を模擬して、図2に示すコーティング層を有する試験片を作成した。図2に示す例において、まず、SUS304鋼からなる基材21の表面をブラスト処理することにより表面粗さRa:1μmの前処理部22を形成した。次に、100℃でのエチルシリケート(TEOS、たとえば高純度化学(株)製)により酸化ケイ素からなる基礎被膜23を形成した。次に、基礎被膜23上にディッピングによりフッ素化したポリシロキサンを含む混合物からなる最上部被膜24を形成した。上記工程により本発明例の試験片を作製した。また、比較例の試験片として、上記本発明例の試験片のうち、基礎被膜23および最上部被膜24を形成しない試験片、および、最上部被膜24を形成しない試験片を準備した。準備した本発明例および比較例の試験片におけるコーティング層の表面に対し、水の接触角および菜種油の接触角を求めた。接触角はJIS R 3257に準じた液適法により測定した。結果を以下の表1に示す。
本発明のコーティング層における基礎被膜について検討した。実施例1に従って、25mm(幅)×100mm(長さ)×1mm(厚さ)のSUS304鋼からなる基材の表面に前処理を施した後、酸化ケイ素からなる基礎被膜を被覆後、フッ素化したポリシロキサンを含む化合物からなる最上部被膜を形成した本発明例の試験片、熱処理によって鉄酸化物からなる基礎被膜を形成後、フッ素化したポリシロキサンを含む化合物からなる最上部被膜を形成した本発明例の試験片、および、直接フッ素化したポリシロキサンを含む化合物からなる最上部被膜を形成した比較例の試験片を準備した。準備した本発明例および比較例の試験片に対し、ラビングテスト(ASTM D4752)による密着性の評価を行った。結果を表2に示す。
本発明のコーティング層における基礎被膜の膜厚の好適例について検討した。実施例1に従って、2.7mm(直径)×10mm(長さ)の棒状のSUS304鋼からなる基材の表面に前処理を施した後、酸化ケイ素からなる基礎被膜の膜厚を0.01μm~15.0μmの範囲で変えて被覆した後、フッ素化したポリシロキサンを含む化合物からなる最上部被膜を形成した試験片を準備した。準備した試験片のそれぞれを、豚の肝臓に差込み50Wで30秒マイクロ波を導通させた後、組織の凝固性および焦げ付きの程度を評価した。結果を表3に示す。
本発明の基材に対する前処理の好適例について検討した。2.7mm(直径)×10mm(長さ)の棒状のSUS304鋼からなる基材の表面に、電解研磨あるいはバフ研摩、球状または多角形のセラミックス砥粒を用いたブラスト処理、レーザ照射によって、任意の表面粗さRaを付与した後に、実施例1に従って、酸化ケイ素からなる基礎被膜およびフッ素化したポリシロキサンを含む化合物からなる最上部被膜を形成した試験片を準備した。準備した試験片のそれぞれを、豚の肝臓に差込み50Wで30秒マイクロ波を導通させた後、焦げ付きの程度を評価した。結果を表4に示す。
本発明の基材の材質の好適例について検討した。以下の表5に示すように材質を変えた25mm(幅)×100mm(長さ)×1mm(厚さ)の基材に、実施例1に従って、酸化ケイ素からなる基礎被膜およびフッ素化したポリシロキサンを含む化合物からなる最上部被膜を形成した試験片を準備した。準備した試験片のそれぞれを、ホットプレートで100℃に加熱した後、豚の肝臓片を試験片上に乗せ、焦げ付きの程度を評価した。結果を表5に示す。
本発明の作動領域部に供給するエネルギーの好適例について検討した。マイクロ波、高周波、超音波または電気エネルギーを用いる外科手術用エネルギーデバイスの作動領域部として、実施例1に従って、基材上に酸化ケイ素からなる基礎被膜およびフッ素化したポリシロキサンを含む化合物からなる最上部被膜からなるコーティング層を形成した後、豚の肝臓を切開および凝固し、焦げ付きの程度を評価した。結果を表6に示す。
外科手術に用いられる、メスや鑷子、鉗子およびスネアの作動領域部の基材に、実施例1に従って、酸化ケイ素からなる基礎被膜およびフッ素化したポリシロキサンを含む化合物からなる最上部被膜を形成した後、各々の被膜の断面組織を観察した。結果を図3に示す。図3の結果から、外科手術用エネルギーデバイスの作動領域部の形状を問わず、酸化ケイ素からなる基礎被膜およびフッ素化したポリシロキサンを含む化合物からなる最上部被膜を形成することができることがわかる。
2 電気メス本体
3 作動領域部
11、21 基材
12、23 基礎被膜
13、24 最上部被膜
14 コーティング層
22 前処理部
Claims (5)
- エネルギーを生体対象部に伝達する作動領域部を持つ外科手術用エネルギーデバイスにおいて、作動領域部を構成する基材の外周面に形成したコーティング層が、基材上に形成された基礎被膜と基礎被膜上に形成された最上部被膜からなり、前記基礎被膜が酸化ケイ素あるいは酸化ケイ素を含む混合物であるとともに、前記最上部被膜がポリシロキサンあるいはポリシロキサンを含む化合物または一部をフッ素化したポリシロキサンを含む化合物であることを特徴とする外科手術用エネルギーデバイス。
- 前記基礎被膜が形成される前の表面粗さが、Ra値で3μm以下であることを特徴とする請求項1に記載の外科手術用エネルギーデバイス。
- 前記基礎被膜の膜厚が0.05~10μmであることを特徴とする請求項1または2に記載の外科手術用エネルギーデバイス。
- 前記作動領域部から生体対象部に伝達されるエネルギーが、マイクロ波、高周波、または超音波であることを特徴とする請求項1~3のいずれか1項に記載の外科手術用エネルギーデバイス。
- 前記外科手術用エネルギーデバイスが、メスや鑷子、鉗子またはスネアであることを特徴とする請求項1~4のいずれか1項に記載の外科手術用エネルギーデバイス。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/512,647 US20170290623A1 (en) | 2014-09-30 | 2015-07-13 | Energy device for surgical operations |
EP15847084.9A EP3202350B1 (en) | 2014-09-30 | 2015-07-13 | Energy device for surgical operations |
JP2016551601A JP6299055B2 (ja) | 2014-09-30 | 2015-07-13 | 外科手術用エネルギーデバイス |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014201277 | 2014-09-30 | ||
JP2014-201277 | 2014-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016051918A1 true WO2016051918A1 (ja) | 2016-04-07 |
Family
ID=55629970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/070066 WO2016051918A1 (ja) | 2014-09-30 | 2015-07-13 | 外科手術用エネルギーデバイス |
Country Status (4)
Country | Link |
---|---|
US (1) | US20170290623A1 (ja) |
EP (1) | EP3202350B1 (ja) |
JP (1) | JP6299055B2 (ja) |
WO (1) | WO2016051918A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020027341A1 (ja) * | 2018-08-03 | 2020-02-06 | 日本パーカライジング株式会社 | 表面処理被膜を有する外科用電極 |
WO2020045494A1 (ja) * | 2018-08-30 | 2020-03-05 | 京セラ株式会社 | 電気メス用ヘッド |
WO2020183679A1 (ja) * | 2019-03-13 | 2020-09-17 | オリンパス株式会社 | 処置具 |
JP2020536617A (ja) * | 2017-10-09 | 2020-12-17 | ストライカー・ユーロピアン・オペレーションズ・リミテッド | 電気手術ペンシル用電極及び電極を製造する方法 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10709497B2 (en) * | 2017-09-22 | 2020-07-14 | Covidien Lp | Electrosurgical tissue sealing device with non-stick coating |
US11432869B2 (en) | 2017-09-22 | 2022-09-06 | Covidien Lp | Method for coating electrosurgical tissue sealing device with non-stick coating |
US11207124B2 (en) | 2019-07-08 | 2021-12-28 | Covidien Lp | Electrosurgical system for use with non-stick coated electrodes |
US11369427B2 (en) | 2019-12-17 | 2022-06-28 | Covidien Lp | System and method of manufacturing non-stick coated electrodes |
DE102020205483A1 (de) | 2020-04-30 | 2021-11-04 | Robert Bosch Gesellschaft mit beschränkter Haftung | Chirurgisches Instrument zum Durchtrennen von biologischem Gewebe |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5549604A (en) * | 1994-12-06 | 1996-08-27 | Conmed Corporation | Non-Stick electroconductive amorphous silica coating |
JPH11508171A (ja) * | 1995-09-27 | 1999-07-21 | ヴァリーラブ・インコーポレーテッド | 被覆された電気外科手術用電極及び製造方法 |
US6409725B1 (en) * | 2000-02-01 | 2002-06-25 | Triad Surgical Technologies, Inc. | Electrosurgical knife |
JP2007510519A (ja) * | 2003-11-10 | 2007-04-26 | チーム メディカル エル.エル.シー. | 電気手術器具 |
JP2010284439A (ja) * | 2009-06-15 | 2010-12-24 | Olympus Corp | 医療機器用電極および医療用処置具 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5925043A (en) * | 1997-04-30 | 1999-07-20 | Medquest Products, Inc. | Electrosurgical electrode with a conductive, non-stick coating |
US6951559B1 (en) * | 2002-06-21 | 2005-10-04 | Megadyne Medical Products, Inc. | Utilization of a hybrid material in a surface coating of an electrosurgical instrument |
US7736361B2 (en) * | 2003-02-14 | 2010-06-15 | The Board Of Trustees Of The Leland Stamford Junior University | Electrosurgical system with uniformly enhanced electric field and minimal collateral damage |
US8814861B2 (en) * | 2005-05-12 | 2014-08-26 | Innovatech, Llc | Electrosurgical electrode and method of manufacturing same |
US20110144676A1 (en) * | 2008-06-30 | 2011-06-16 | Mani, Inc. | Medical Bladed Device And Method For Coating Medical Bladed Device |
KR20140139058A (ko) * | 2012-03-30 | 2014-12-04 | 덴츠플라이 아이에이치 에이비 | 항균 금속을 포함하는 표면을 구비한 의료 기기 |
JP6149425B2 (ja) * | 2013-03-01 | 2017-06-21 | コニカミノルタ株式会社 | 超音波探触子の製造方法 |
-
2015
- 2015-07-13 WO PCT/JP2015/070066 patent/WO2016051918A1/ja active Application Filing
- 2015-07-13 EP EP15847084.9A patent/EP3202350B1/en active Active
- 2015-07-13 JP JP2016551601A patent/JP6299055B2/ja active Active
- 2015-07-13 US US15/512,647 patent/US20170290623A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5549604A (en) * | 1994-12-06 | 1996-08-27 | Conmed Corporation | Non-Stick electroconductive amorphous silica coating |
JPH11508171A (ja) * | 1995-09-27 | 1999-07-21 | ヴァリーラブ・インコーポレーテッド | 被覆された電気外科手術用電極及び製造方法 |
US6409725B1 (en) * | 2000-02-01 | 2002-06-25 | Triad Surgical Technologies, Inc. | Electrosurgical knife |
JP2007510519A (ja) * | 2003-11-10 | 2007-04-26 | チーム メディカル エル.エル.シー. | 電気手術器具 |
JP2010284439A (ja) * | 2009-06-15 | 2010-12-24 | Olympus Corp | 医療機器用電極および医療用処置具 |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020536617A (ja) * | 2017-10-09 | 2020-12-17 | ストライカー・ユーロピアン・オペレーションズ・リミテッド | 電気手術ペンシル用電極及び電極を製造する方法 |
JP7240389B2 (ja) | 2017-10-09 | 2023-03-15 | ストライカー・ユーロピアン・オペレーションズ・リミテッド | 電気手術ペンシル用電極及び電極を製造する方法 |
EP3694433B1 (en) * | 2017-10-09 | 2024-08-14 | Stryker European Operations Limited | An electrode for an electrosurgical pencil and a method of making an electrode |
US12082869B2 (en) | 2017-10-09 | 2024-09-10 | Stryker European Operations Limited | Electrode for an electrosurgical pencil and a method of making an electrode |
WO2020027341A1 (ja) * | 2018-08-03 | 2020-02-06 | 日本パーカライジング株式会社 | 表面処理被膜を有する外科用電極 |
KR20210027405A (ko) * | 2018-08-03 | 2021-03-10 | 니혼 파커라이징 가부시키가이샤 | 표면 처리 피막을 갖는 외과용 전극 |
JPWO2020027341A1 (ja) * | 2018-08-03 | 2021-08-02 | 日本パーカライジング株式会社 | 表面処理被膜を有する外科用電極 |
KR102550287B1 (ko) | 2018-08-03 | 2023-06-30 | 니혼 파커라이징 가부시키가이샤 | 표면 처리 피막을 갖는 외과용 전극 |
WO2020045494A1 (ja) * | 2018-08-30 | 2020-03-05 | 京セラ株式会社 | 電気メス用ヘッド |
JPWO2020045494A1 (ja) * | 2018-08-30 | 2021-08-10 | 京セラ株式会社 | 電気メス用ヘッド |
JP7248687B2 (ja) | 2018-08-30 | 2023-03-29 | 京セラ株式会社 | 電気メス用ヘッド |
WO2020183679A1 (ja) * | 2019-03-13 | 2020-09-17 | オリンパス株式会社 | 処置具 |
Also Published As
Publication number | Publication date |
---|---|
US20170290623A1 (en) | 2017-10-12 |
EP3202350A1 (en) | 2017-08-09 |
EP3202350A4 (en) | 2017-10-11 |
JPWO2016051918A1 (ja) | 2017-05-25 |
JP6299055B2 (ja) | 2018-03-28 |
EP3202350B1 (en) | 2021-06-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6299055B2 (ja) | 外科手術用エネルギーデバイス | |
US20220110673A1 (en) | Structured tissue contact surface for energy-based surgical instrument | |
US6132427A (en) | Electrosurgical instruments | |
US9339326B2 (en) | Diamond-like carbon electrode coating | |
AU2011338152B2 (en) | Surgical instrument | |
US20220022942A1 (en) | Non-stick coated electrosurgical instruments and method for manufacturing the same | |
JP2004267644A (ja) | 生体組織処理用電極棒 | |
JP2006288425A (ja) | バイポーラピンセット | |
BRPI1007293B1 (pt) | Método para produzir um gume da lâmina de barbear ou depilar e gume de lâmina de barbear ou depilar | |
JP5389542B2 (ja) | 医療機器用電極および医療用処置具 | |
EP2901950B1 (en) | Blade tip profile for use in cutting of tissue | |
JP6865666B2 (ja) | 高周波医療機器用の電極および高周波医療機器 | |
US10869715B2 (en) | Double bevel blade tip profile for use in cutting of tissue | |
US11103271B2 (en) | Medical instrument and manufacturing method of covering for metallic component | |
JP2020080995A (ja) | 医療機器用処置部および医療機器 | |
JP2010227462A (ja) | 医療機器用電極および医療用処置具 | |
EP3694433B1 (en) | An electrode for an electrosurgical pencil and a method of making an electrode | |
JP7545565B2 (ja) | 医療用エネルギーデバイスの処置部、その製造方法、および医療用エネルギーデバイス | |
US20240293112A1 (en) | Hydrophobic coating for medical devices | |
JP7523661B2 (ja) | 電気外科用電極のための複合コーティング | |
KR20220127903A (ko) | 전기 외과용 전극 | |
JP2011072324A (ja) | 医療用処置具および医療用処置具の製造方法 | |
KR20010092480A (ko) | 전기수술용 메스 | |
TW201434432A (zh) | 具有類鑽碳薄膜之電燒刀及其製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15847084 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2016551601 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15512647 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REEP | Request for entry into the european phase |
Ref document number: 2015847084 Country of ref document: EP |