WO2013089257A1 - 組織縫合器 - Google Patents
組織縫合器 Download PDFInfo
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- WO2013089257A1 WO2013089257A1 PCT/JP2012/082583 JP2012082583W WO2013089257A1 WO 2013089257 A1 WO2013089257 A1 WO 2013089257A1 JP 2012082583 W JP2012082583 W JP 2012082583W WO 2013089257 A1 WO2013089257 A1 WO 2013089257A1
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- tissue
- suturing device
- sutured
- crushing
- tissue suturing
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- 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
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0469—Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
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- 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
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00482—Digestive system
-
- 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
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00482—Digestive system
- A61B2018/00494—Stomach, intestines or bowel
-
- 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
- A61B2018/00589—Coagulation
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- 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
- A61B2018/00619—Welding
-
- 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
- A61B2018/0063—Sealing
-
- 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
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
- A61B2018/1823—Generators therefor
-
- 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
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
- A61B2018/1869—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves with an instrument interstitially inserted into the body, e.g. needles
Definitions
- the present invention uses a microwave and combines a tissue side and a tissue side instead of suturing with a thread, and coagulates and fixes the tissue so as to produce substantially the same effect as a suture, that is, a tissue suturing device (Stitch)
- a tissue suturing device Stitch
- Patent Document 1 Documents related to a suturing device using microwaves (see Patent Document 1) have been reported.
- the structure of the tissue suture device of the present invention is completely different. Furthermore, the structure is complicated and it is difficult to put it into practical use as a simple device. Furthermore, it is necessary to sew the gastrointestinal wall during endoscopic surgery, but work through the endoscope is not possible. Therefore, there has been a demand for the development of a device that can substitute the stitching (adhesion) of tissue by sewing with a thread or stapler.
- the present invention is to develop a device that can perform an operation to sew a needle with a thread or a stapler on a tissue in order to solve the above problem.
- a tissue suturing device having a crushing portion and a protruding portion including a central conductor and / or an outer conductor for applying a microwave is the protruding portion.
- the parts of the tissue to be sutured are brought into contact with each other or overlapped by the crushing part and the crushing part, and each tissue is pressed into the small hole, and in addition, the contacted or overlapped part by microwave is solidified and / or fixed.
- the present invention was completed after confirming that the tissue to be sutured could be sutured.
- the two protrusions facing each other are pressed against the tissue while being shifted from each other, so that the protrusion pushes the tissue, and the other protrusion also pushes from the opposite side of the tissue in the same manner.
- the pieces to be sutured can be sutured by contacting or overlapping pieces of the tissue to be sutured and coagulating and / or fixing the contacted or piled portions by microwaves.
- the tissue after removing the protruding portion pressed against the tissue is coagulated and fixed, and each tissue is fixed and connected to the opposite tissue at the same time as crimping.
- the stitching is completed in the same way (see: FIGS. 2C and 3b).
- this invention consists of the following. “1. a tissue suturing device, Crushing section, A central conductor and / or a protrusion including an outer conductor for applying microwaves, The projecting portion and the crushing portion are used to contact or superimpose fragments of the tissue to be sutured, and further, the portion that is contacted or superposed by microwaves is coagulated and / or fixed to suture the tissue to be sutured. Tissue suture device. 2.
- the tissue suturing device according to item 1, wherein Two or more crushing parts facing each other, A projecting portion including a central conductor and / or an outer conductor for applying one or more microwaves fixed to the crushing portion, A tissue characterized by suturing a tissue to be sutured by contacting or overlapping pieces of the tissue to be sutured by pressing and projecting portions facing each other, and further coagulating and / or fixing the portions contacted or superimposed by microwaves. Suture device. 3.
- the tissue suturing device Having a small hole in the crushing portion;
- the small hole serves as a receiver of the protruding portion fixed to the pressing portion facing each other,
- the suturing target tissue is sutured by contacting or overlapping the pieces of the tissue to be sutured with the projections and crushing holes facing each other, and further coagulating and / or adhering the contacted or superimposed portions with the microwave.
- tissue suturing device The pieces of the tissue to be sutured are brought into contact with each other by the small holes of the protruding portion and the pressure-contacting portion, and the respective tissues are press-fitted into the small holes to coagulate and / or fold the contacted or overlapped portions by microwaves.
- a tissue suturing device that is fixed and sutures a tissue to be sutured. 5.
- the tissue suturing device Has a scissors-shaped structure, The crushing portion is fixed to each cutting edge of the scissors, By grasping the grip of the scissors, the protruding portions and the crushing portions and / or the small holes of the crushing portions contact or overlap the pieces of the tissue to be sutured with each other, and further, the portions that are contacted or overlapped by microwaves.
- the tissue suturing device according to any one of 3 to 5 above, 2.
- the tissue suturing device according to claim 1, wherein the two or more protrusions form a row, and the two or more small holes form a row to serve as a receiver of the opposing protrusions forming the row. 7).
- the tissue suturing device according to any one of 3 to 5 above, The tissue suturing device is characterized in that the projecting portion forms a linear projecting portion, and the small hole serves as a receiver of the linear projecting portion.
- tissue suturing device according to any one of 1 to 6, wherein A tissue suturing device having two sets of protrusions and small holes facing each other, one protrusion including an inner conductor and the other protrusion including an outer conductor. 11. The tissue suturing device according to any one of claims 1 to 10, wherein the diameter of the protrusion, the central conductor, and / or the outer conductor decreases gradually or stepwise toward the tip. 12 The tissue suturing device according to any one of claims 1 to 10, wherein the protrusion has a halved structure. "
- tissue suturing device according to the present invention, the same operation as ligating and suturing with a thread is completed almost instantly. If this operation is performed several times, the membrane can be easily closed in a short time for a long time.
- the tissue suturing device of the present invention having a pressing portion in which a large number of protrusions are fixed on a plane, the operations of sandwiching the tissue having two planes and applying the microwave are repeated, whereby the linear planar tissues are mutually bonded. It can be solidified and fixed.
- a It is an enlarged view of the protrusion part 6 and the crushing part 1 of the tissue suture device of this invention.
- the crushing portion 1 of the pedestal-shaped object has a small hole 3 into which the protruding portion 6 enters.
- the protrusion 6 pushes the tissue into the crushing portion 1.
- b A prototype of the scissor-shaped tissue suture device of the present invention. By grasping the grip 8 between the pieces of the tissue to be sutured, the protruding portion 6 can push the tissue into the crushing portion 1.
- 1 shows an example of a crushing portion 1 and a protruding portion 6 of a pedestal shaped object of a tissue suturing device of the present invention.
- FIG. 1 illustrates one example of the entire tissue suturing device of the present invention.
- Fig. 3 illustrates an example of use of the tissue suturing device of the present invention.
- Each of the two protrusions 6 pushes the tissue into the pressing part 1 facing each other.
- the protrusion part 6 may have a halved structure or a tapered structure other than the shape for a puncture needle.
- Fig. 3 illustrates an example of use of the tissue suturing device of the present invention.
- the cutting edge 6 is installed on the protruding portion 6 of the pressing part 1 of the pedestal-shaped object, and the cutting edge does not face the pressing part of the pedestal-shaped object, but both cutting edges face each other through the structure, etc.
- Microwave is applied, compresses and solidifies. It is a closure experiment of the mesenteric incision part of a pig, Comprising: The usage example of the tissue suture device of this invention is illustrated. In a, the incision line is aligned, the gripping pressure is applied, and a microwave is applied for coagulation. b indicates that the adhesion is maintained even if the incision site is tensioned by three coagulation operations.
- E-Field by microwave irradiation in the tissue suturing device of the present invention in the case of having a needle-like (the diameter of the central conductor 2 is gradually or gradually decreasing toward the tip: reference FIG. 5a) V / m). It shows that the microwave can be sufficiently applied to the periphery of the suture target portion.
- c Projection 6 with a half structure
- the mechanism of the present invention includes two or more pressing parts 1 facing each other, a protruding part 6 including a central conductor 2 and / or an outer conductor 9 for applying one or more microwaves fixed to the pressing parts, Since it has the small hole 3 used as the receiver of the protrusion part fixed to the opposing pressing part, when the opposing pressing part 1 is match
- the protruding portion 6 includes both the center conductor 2 and the outer conductor 9, a microwave can be applied to a fragment portion of the tissue to be sutured. Further, if the protruding portion 6 has only the central conductor 2, the other protruding portion 6 or the crushing portion 1 only needs to include the outer conductor 9. Further, if the protruding portion 6 has only the outer conductor 9, the other protruding portion 6 or the crushing portion 1 only needs to include the inner conductor 2.
- the tissue suturing device of the present invention is characterized by the shape of the long-diameter protruding portion 6 and the shape of the crushing portion 1. By adopting this shape, it is possible to perform a suture treatment of tissue or the like, which is an effect that has not been achieved in the past. is there.
- the tissue suturing device of the present invention has a long-diameter protruding portion 6 including at least a central conductor 2 and / or an outer conductor 9 for applying a microwave.
- the long diameter protruding portion 6 is fixed to the crushing portion 1 of the pedestal-shaped object, and preferably, the pair of long diameter protruding portions 6 are in a state of facing each other.
- the long-diameter protrusions 6 do not have to be paired.
- the long-diameter protrusions 6 may be a plurality of pairs, or may be comb-shaped and surfaces.
- the long-diameter protrusions 6 face each other, the long-diameter protrusions 6 face each other with a gap suitable for the thickness of the tissue or the like so as to sandwich the target tissue or the like.
- the crushing portion 1 of the pedestal-shaped object is a receiver of the counterpart long-diameter protrusion 6 and may be a flat surface, but preferably has a small hole 3 as a receiver.
- the small hole 3 preferably corresponds to the shape of the protrusion 6. When the protrusions 6 are a pair, the small holes 3 are also formed in pairs.
- the tissue suturing device of the present invention preferably has a scissor shape or a sealing device structure.
- the crushing portions 1 are fixed to the respective cutting edges 7 of the scissors, and by grasping the grips 8 of the scissors, the protruding portions 6 and the crushing portions 1 and / or the small holes 3 of the crushing portions face each other.
- the pieces to be sutured can be sutured by contacting or overlapping pieces of the tissue to be sutured and further coagulating and / or fixing the contacted or piled portions by microwaves (see FIG. 1b).
- the crushing portion 1 of the pedestal-shaped object has a function of pinching (gripping) a fragment portion of the tissue to be sutured by a scissor cutting operation.
- the shape of a blade can also be made into the shape of a sliding blade (reference: WO2008 / 056732).
- the protrusion 6 has a tapered tip (see FIG. 5a) or a cylinder / prism plane.
- the center conductor 2 for microwave transmission is exposed from the insulating material at the tapered tip portion and the cylindrical / rectangular tip portion. More preferably, the diameter of the projecting portion, the central conductor 2 and / or the outer conductor 9 is gradually or gradually reduced toward the tip.
- the present inventors have found that such a tapered projecting portion 6 (tapered structure) can efficiently apply a microwave to the tissue to be coagulated, and can further reduce the damage to the tissue to be coagulated. I have confirmed.
- the long-diameter protruding portion is not only a so-called cylinder / rectangular column, but also half (the column is half of the column cut in half in the vertical direction, and the center of the column is the center for microwave transmission.
- the center conductor 2 is exposed, and a coaxial structure in which an insulating layer is provided between the center conductor 2 and the outer conductor 9 is cut vertically.
- the present inventors have confirmed that such a halved structure of the projecting portion 6 can apply a microwave to the coagulation target tissue, and can further reduce the damage to the non-coagulation target tissue.
- the receiver of the microwave applied from the center conductor 2 can also be the opposing outer conductor 9 (for example, the crushing portion 1 and the protruding portion 6), and the position of the outer conductor 9 is adjusted according to the purpose of tissue suturing. Is done.
- the crushing part 1 itself of the pedestal shaped object is an insulator, and is installed so as to surround a part of the crushing part of the pedestal shaped object, for example, the outside.
- the long-diameter protruding portion 6 has a halved structure, even if the opposing one long-diameter protruding portion 6 is halved and the other outer conductor 9 having a shape corresponding to the halved shape is installed on the halved central column, Good.
- the central conductor 2 at the center of the long-diameter protruding portion 6 itself, enclose it with an insulating material, and enclose part or all of the outside of the outer shape with the external conductor 9.
- pedestal shaped crushing portion 1, and arm portion are as follows.
- the long-diameter protrusion 6 has a circular, elliptical, semi-circular or half-shaped cross section, and the length of the long-diameter protrusion 6 is 0.1 to 60 mm, preferably 0.5 to 10 mm, and more preferably. Is 1 to 5 mm, specifically, for example, 1.0 to 3.0 mm, or about 2.0 mm.
- the diameter is 0.1 to 5 mm, preferably 0.2 to 3 mm, more preferably 0.5 to 2 mm, specifically 0.8 to 1.8 mm, or 1.0 mm, for example.
- the crushing portion 1 of the pedestal-shaped object is circular or square, and the maximum diameter thereof is 1 to 10 mm, preferably 2 to 8 mm, more preferably 2.5 to 2.5 mm when the projection is single. 5 mm, more specifically, for example, 2.5 to 4 mm, or 3 mm is exemplified.
- the crushing portion 1 of the pedestal-shaped object is preferably provided with a small hole 3 as a receptacle for the long-diameter protruding portion 6.
- the small hole 3 may have any shape and length corresponding to the shape of the long-diameter protruding portion 6.
- the maximum diameter is 0.3 to 8 mm, preferably 0.4 to 5 mm, more preferably 0.8 to 4 mm, specifically, for example, 0.9 to 3.0 mm, or 1.5 mm. Is done.
- the small hole 3 has a shape corresponding to the shape of the long-diameter protruding portion 6, and the maximum depth varies depending on the sandwiched tissue. Generally, 0.5 to 5 mm, preferably 1.0 to 3 mm, more preferably 1.5 to 2.5 mm, specifically 1.8 to 2.3 mm, or 2.0 mm, for example. Is exemplified.
- the crush of the pedestal-shaped object is connected to the arm part, and the center conductor 2 for microwave transmission runs through it.
- the diameter of the arm part is not particularly limited, but the pinching mechanism sandwiches the tissue between the opposing long-diameter protruding part and / or the crushing part of the pedestal shape, so that the material, thickness, and length that can maintain the corresponding strength Can be adjusted in a self-evident manner.
- the diameter is about 3 to 6 mm.
- the tissue suturing device according to the present invention is connected to a microwave generator by a microwave transmission unit made of a coaxial cable.
- the center conductor 2 and the outer conductor 9 are prepared by so-called electric conductors.
- the conductor is preferably made of a non-magnetic material.
- the non-magnetic material include brass (copper + tin), phosphor bronze (copper + tin + phosphorus), copper, zinc, gold, silver alloy, and the like.
- the insulator is not particularly limited as long as it is a so-called heat-resistant electric or heat-resistant substance.
- the heat-resistant temperature is not particularly limited as long as it is approximately 120 ° C. or higher.
- the coaxial cable that connects the output source and the central conductor 2 becomes a microwave transmission part in the case of a stationary oscillator, and can be a tube-like flexible bendable cable (a tube that wraps the coaxial cable). In a portable oscillator, it is an electrical cord.
- a microwave is applied to a living tissue or the like to be sutured by the center conductor 2 from the output source through the coaxial cable.
- the applied voltage is preferably 1 to 60V. If it is higher than 60V, the damage to the tissue can be significant. Also, the requirement of less than 15 V is a condition that also considers the case of avoiding hemostasis of small blood vessels and thermal damage in the vicinity (brain surgery).
- FIG. 1 is a photograph of the main body of the tissue suture device of the present invention.
- the long-diameter protruding portion 6 can be inserted in accordance with the small hole 3 of the pressing portion 1 of the pedestal-shaped object.
- the long-diameter protruding portion 6 has a microwave transmission center conductor 2, and an outer conductor 9 is wound on the outer peripheral edge of the crushing portion 1 of the pedestal shape (the crushing portion 1 includes the outer conductor 9). . If the grip 8 is gripped like scissors, the projections 6 having both long diameters are inserted into the corresponding small holes 3 accordingly.
- FIG. 2A-D illustrate the tissue suturing device of the present invention.
- A shows the relationship between the crushing portion 1 of the pedestal-shaped object, the center conductor 2 for microwave transmission, and the small hole 3.
- B shows that when the long diameter protrusions 6 of the tissue suturing device of the present invention are paired, they are slightly shifted from each other, and both of the long diameter protrusions 6 can reach and come into contact with the crushing portion 1 of the pedestal-shaped object.
- C illustrates a state in which the tissue 4 is sandwiched and sutured. The contact relationship between the tissue 4, the inter-tissue gap 5, the opposing long-diameter protruding portion 6, and the crushing portion 1 of the pedestal-shaped object is shown.
- D shows another shape of the tissue suturing device of the present invention, in which the long-diameter protruding portion 6 is opposed but does not come into contact with the crush 1 of the pedestal shape.
- the tissue 4 is sandwiched between two long-diameter projections 6 and compressed, solidified, and fixed.
- FIG. 3a shows that after cutting the mesentery of a pig, each stump (tissue side) is grasped by the protruding portion 6 and the crushing portion 1 of the tissue suturing device of the present invention, and crushing and microwave application are performed. This confirmed that the mesentery could be closed with the same effect as suture.
- FIG. 3b the line after the closing operation is tensioned to confirm the sewing. This was an experiment to close the mesenteric incision in a pig, but the suture was completed several times faster than when stitched with a conventional thread, and the stability of the obtained suture site was very good. . In addition, it was confirmed that the operation was achieved without the need for post-operative thread removal and without leaving a foreign body in the body, which was an extremely excellent tissue suture device.
- the output connector and the tissue suturing device of the present invention are connected, the long-diameter protruding portion 6 is brought into contact with the suture site of the target tissue 4, microwaves are applied, and the target tissue is approximately 1.5 mm. Was solidified, fixed, and sutured.
- the tissue suturing device of the present invention is capable of suturing a wide range of living tissue by applying microwaves to the living tissue or the like that is a suture target in a surgical treatment area in the medical field. Can be achieved. In particular, it can be applied to sutures of the mesenchyme, intestinal tract, blood vessels and the like. Therefore, the tissue suturing device of the present invention is a surgical device that is easy to operate and can easily achieve tissue suturing. In addition, mist and smoke do not come out, the hemostatic ability is extremely strong and excellent, and it is suitable as a surgical instrument in a limited space.
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Abstract
Description
なお、本出願は、参照によりここに援用されるところ、日本特許出願番号2011-273043からの優先権を請求する。
よって、糸やステープラーで縫って組織を縫合(接着)することを代行できる器具の開発が求められていた。
より詳しくは、互いに向かい合う2つの突出部を、お互いずらして組織に押しつけることにより、突出部が組織を押しこみ、さらに、もう一方の突出部が該組織の反対側からも同じように押しこみ、縫合対象組織の断片部分同志を接触又は重ねて、加えてマイクロ波によって接触又は重ねた部分を凝固及び/又は固着して縫合対象組織を縫合することができる。
なお、組織に押し付けた突出部を取り去った後の該組織は凝固・固定され、互いの組織が圧着と同時に反対側組織と繋がって固定化、支持が強化され糸で縫合した時と実質的に同じように縫合が完成する(参照:図2C、図3b)。
「1.組織縫合器であって、
圧挫部と、
マイクロ波を印加するための中心導体及び/又は外部導体を含む突出部と、を有し、
該突出部と該圧挫部によって縫合対象組織の断片部分同志を接触又は重ねて、さらにマイクロ波によって接触又は重ねた部分を凝固及び/又は固着して縫合対象組織を縫合することを特徴とする組織縫合器。
2.前項1に記載の組織縫合器であって、
2以上の互いに向かい合う圧挫部と、
該圧挫部に固定された1以上のマイクロ波を印加するための中心導体及び/又は外部導体を含む突出部と、を有し、
それぞれ向かい合う圧挫部と突出部によって縫合対象組織の断片部分同志を接触又は重ね、さらにマイクロ波によって接触又は重ねた部分を凝固及び/又は固着して縫合対象組織を縫合することを特徴とする組織縫合器。
3.前項1又は2に記載の組織縫合器であって、
前記圧挫部に小孔を有し、
該小孔は向い合う圧挫部に固定された突出部の受け手となり、
それぞれ向かい合う突出部と圧挫部の小孔によって縫合対象組織の断片部分同志を接触又は重ねて、さらにマイクロ波によって接触又は重ねた部分を凝固及び/又は固着して縫合対象組織を縫合することを特徴とする組織縫合器。
4.前項3に記載の組織縫合器であって、
それぞれ向かい合う突出部と圧挫部の小孔によって縫合対象組織の断片部分同志を接触又は重ねて、さらに互いの組織を小孔内に圧入させて、マイクロ波によって接触又は重ねた部分を凝固及び/又は固着して縫合対象組織を縫合することを特徴とする組織縫合器。
5.前項2~4のいずれか1に記載の組織縫合器であって、
ハサミ形状の構造を有し、
該ハサミのそれぞれの刃先に前記圧挫部が固定されており、
該ハサミのグリップを握ることにより、それぞれ向かい合う突出部と圧挫部及び/又は圧挫部の小孔によって縫合対象組織の断片部分同志を接触又は重ねて、さらにマイクロ波によって接触又は重ねた部分を凝固及び/又は固着して縫合対象組織を縫合することを特徴とする組織縫合器。
6.前項3~5のいずれか1に記載の組織縫合器であって、
前記2以上の突出部が列を形成し、さらに2以上の小孔は列を形成した向い合う突出部の受け手になるために列を形成していることを特徴とする組織縫合器。
7.前記列が複数であることを特徴とする前項6に記載の組織縫合器。
8.前項3~5のいずれか1に記載の組織縫合器であって、
前記突出部が線状の突出部を形成し、さらに小孔は線状の突出部の受け手になるための構造であることを特徴とする組織縫合器。
9.前記1~6のいずれか1に記載の組織縫合器であって、
突出部が中心導体を含み、圧挫部が外部導体を含むことを特徴とする組織縫合器。
10.前記1~6のいずれか1に記載の組織縫合器であって、
それぞれ向かい合う2組の突出部と小孔を有し、一つの突出部が内部導体を含み、もう一つの突出部が外部導体を含むことを特徴とする組織縫合器。
11.前記突出部、前記中心導体、及び/又は前記外部導体の直径が先端に向かって漸次又は段階的に小さくなることを特徴とする請求項1~10のいずれか1に記載の組織縫合器。
12.前記突出部が半割構造であることを特徴とする請求項1~10のいずれか1に記載の組織縫合器。」
本発明に係る組織縫合器は、糸で結紮、縫合するのと同じ作業がほぼ一瞬にして終わる。この操作を何度か実施すると長い間膜の閉鎖が容易に短時間で終わることができる。さらに、腸管の縫合等で縫合のある部位を弱いと感じた時、弱い部分の辺縁部分のみをマイクロ波で印加すれば糸と1針追加でかけたと同じ効果を得ることができる。
より詳しくは、互いに向かい合う圧挫部間に挟まれた異なる組織2面が反対の組織に押し込まれ、マイクロ波を印加されることにより凝固されることになる。
また、原則、マイクロ波は、中心導体から外部導体9に向かって飛ばすので、本発明の組織縫合器は、中心導体及び外部導体9が必要である。例えば、突出部6が中心導体2及び外部導体9の両方を含んでいれば、縫合対象組織の断片部分にマイクロ波を印加することができる。また、突出部6が中心導体2のみを有すれば、他の突出部6又は圧挫部1が外部導体9を含んでいれば良い。さらに、突出部6が外部導体9のみを有すれば、他の突出部6又は圧挫部1が内部導体2を含んでいれば良い。
本発明の組織縫合器は、少なくともマイクロ波を印加するための中心導体2及び/又は外部導体9を含む長径の突出部6を有する。
より詳しくは、台座形状物の圧挫部1は、ハサミの切り込み動作により縫合対象組織の断片部分の挟み込み(把持)機能をもつ。また、刃の形状は、滑る刃(参照:WO2008/056732)の形状とすることもできる。
なお、より好ましくは、突出部、中心導体2、及び/又は外部導体9の直径が先端に向かって漸次又は段階的に小さくなることを特徴とする。本発明者らは、このような先細りする突出部6(先細構造)は、凝固対象組織に効率的にマイクロ波を印加することができ、さらに非凝固対象組織の損傷を少なくすることができることを確認している。
本発明者らは、このような半割構造の突出部6は、凝固対象組織にマイクロ波を印加することができ、さらに非凝固対象組織の損傷を少なくすることができることを確認している。
長径の突出部6が、半割構造の場合、相対する一の長径の突出部6を半割にし、他を半割形状に相応する形態の外部導体9を半割中心柱に設置してもよい。あるいは、長径の突出部6自体の中心に中心導体2を設置し、それを絶縁体材料で囲み、その外形外側の一部もしくは全部を外部導体9で囲むことも可能である。
Aは、台座形状物の圧挫部1、マイクロ波伝送用中心導体2、小孔3の関係をみたものである。
Bは、本発明の組織縫合器の長径の突出部6が、一対のとき、相互に少しずれて、長径の突出部6がどちらも台座形状物の圧挫部1に届き接触することができることを示す。
Cは、組織4を挟んで、縫合する状態を図示する。組織4、組織間空隙5、相対する長径の突出部6、台座形状物の圧挫部1との接触の関係が示される。より詳しくは、2つの長径の突出部6が、互いに、組織4を対側に押し込み、該組織4を圧縮・凝固・固着させている。
Dは、本発明の組織縫合器の別の形状を示し、長径の突出部6は相対するが台座形状物の圧挫1とは接触しないような形態である。Dでは、2つの長径の突出部6同志で組織4を挟み込み、圧縮、凝固・固着させている。
図3bは、該閉鎖操作後のラインに緊張をかけ、縫着を確認している。豚の腸間膜切開部の閉鎖実験であるが、従来糸で縫い合わせた場合に比較して、数倍の速さで縫合が完成し、得られた縫合部位の安定性は非常に優れていた。しかも、術後抜糸の必要もなく、体内に異物を残さない手術が実現し、極めて優れた組織縫合器であることを確認した。
2:中心導体
3:小孔
4:組織
5:空隙
6:突出部
7:刃先
8:グリップ
9:外部導体
10:絶縁体
Claims (12)
- 組織縫合器であって、
圧挫部と、
マイクロ波を印加するための中心導体及び/又は外部導体を含む突出部と、を有し、
該突出部と該圧挫部によって縫合対象組織の断片部分同志を接触又は重ねて、さらにマイクロ波によって接触又は重ねた部分を凝固及び/又は固着して縫合対象組織を縫合することを特徴とする組織縫合器。 - 請求項1に記載の組織縫合器であって、
2以上の互いに向かい合う圧挫部と、
該圧挫部に固定された1以上のマイクロ波を印加するための中心導体及び/又は外部導体を含む突出部と、を有し、
それぞれ向かい合う圧挫部と突出部によって縫合対象組織の断片部分同志を接触又は重ね、さらにマイクロ波によって接触又は重ねた部分を凝固及び/又は固着して縫合対象組織を縫合することを特徴とする組織縫合器。 - 請求項1又は2に記載の組織縫合器であって、
前記圧挫部に小孔を有し、
該小孔は向い合う圧挫部に固定された突出部の受け手となり、
それぞれ向かい合う突出部と圧挫部の小孔によって縫合対象組織の断片部分同志を接触又は重ねて、さらにマイクロ波によって接触又は重ねた部分を凝固及び/又は固着して縫合対象組織を縫合することを特徴とする組織縫合器。 - 請求項3に記載の組織縫合器であって、
それぞれ向かい合う突出部と圧挫部の小孔によって縫合対象組織の断片部分同志を接触又は重ねて、さらに互いの組織を小孔内に圧入させて、マイクロ波によって接触又は重ねた部分を凝固及び/又は固着して縫合対象組織を縫合することを特徴とする組織縫合器。 - 請求項2~4のいずれか1に記載の組織縫合器であって、
ハサミ形状の構造を有し、
該ハサミのそれぞれの刃先に前記圧挫部が固定されており、
該ハサミのグリップを握ることにより、それぞれ向かい合う突出部と圧挫部及び/又は圧挫部の小孔によって縫合対象組織の断片部分同志を接触又は重ねて、さらにマイクロ波によって接触又は重ねた部分を凝固及び/又は固着して縫合対象組織を縫合することを特徴とする組織縫合器。 - 請求項3~5のいずれか1に記載の組織縫合器であって、
前記2以上の突出部が列を形成し、さらに2以上の小孔は列を形成した向い合う突出部の受け手になるために列を形成していることを特徴とする組織縫合器。 - 前記列が複数であることを特徴とする請求項6に記載の組織縫合器。
- 請求項3~5のいずれか1に記載の組織縫合器であって、
前記突出部が線状の突出部を形成し、さらに小孔は線状の突出部の受け手になるための構造であることを特徴とする組織縫合器。 - 請求項1~6のいずれか1に記載の組織縫合器であって、
突出部が中心導体を含み、圧挫部が外部導体を含むことを特徴とする組織縫合器。 - 請求項1~6のいずれか1に記載の組織縫合器であって、
それぞれ向かい合う2組の突出部と小孔を有し、一つの突出部が内部導体を含み、もう一つの突出部が外部導体を含むことを特徴とする組織縫合器。 - 前記突出部、前記中心導体、及び/又は前記外部導体の直径が先端に向かって漸次又は段階的に小さくなることを特徴とする請求項1~10のいずれか1に記載の組織縫合器。
- 前記突出部が半割構造であることを特徴とする請求項1~10のいずれか1に記載の組織縫合器。
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