JP2005058310A - Puncture suction device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a puncture and suction device capable of easily sucking a contained liquid without leaking out a large amount of the contained liquid when sucking the contained liquid of an ovarian cystoma or others and preventing an accidental penetration through an ovary at the time of puncture in an endoscopic surgical operation. <P>SOLUTION: In the puncture suction device comprising an inner needle, a suction pipe for sucking the contained liquid in an organ, an outer pipe accommodating the inner needle and the suction pipe, and an operation grip portion, a fixing means is arranged at the front end portion of the suction pipe for fixing to the cystoma wall, the fixing means comprises at least a balloon, or the above fixing means comprises two balloons, and the inner needle and the suction pipe slide out and protrude from the outer pipe. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a puncture and suction device for aspirating an internal solution such as ovarian cyst in endoscopic surgery.

  In recent years, endoscopic surgery has been widely performed. Endoscopic surgery is a method in which surgery is performed by remote control while viewing images viewed from the endoscope on a screen. In the case of gynecological endoscopic surgery, an intravaginal approach is used in addition to an intraperitoneal approach. In cases of ovarian cysts, the intracystic solution is aspirated with a puncture needle or suction tube. Usually, a puncture needle is inserted while grasping with forceps or the like, or an incision is made in the ovary and suctioned with a suction tube. At this time, a large amount of intracystic solution may leak. Moreover, when the puncture needle is inserted, the internal solution may leak through the organ due to excessive insertion.

  A method has been proposed in which the content liquid leaked when a puncture needle is inserted is sucked from the route of the outer cylinder (Patent Document 1). In this case, the leakage from the periphery of the puncture needle is intended to be sucked. However, if the ovary is removed from the distal end of the outer tube during operation, the leaked content liquid cannot be sucked and may not be effective.

  Further, a method has been devised in which an organ is sucked by a flexible tip suction portion of an outer cylinder and a puncture needle is inserted in that state (Patent Documents 2 and 3). By making the tip flexible, it was less likely to come off the organ during aspiration. Further, in order to prevent the distal end portion from coming off, a balloon, a big tail, and a malecot are attached to the distal end of the catheter for suctioning the internal solution to make it difficult to remove. However, these are all costly operations, as well as an aspirator that aspirates the cystic solution and a device with a trap in the middle of the aspirator and aspiration tube to fix the outer tube to the organ. Was sometimes complicated.

Further, in order to completely prevent leakage of the internal solution, a method has been devised in which a puncture needle is inserted and aspirated after an umbrella-like portion is adhered and adhered to the outer wall of an organ (Patent Document 4, Patent Document) 5, Patent Document 6). This method is good in that it can completely prevent leakage of the content liquid, but has the disadvantages that it takes time for the bonding operation, and the operation is complicated and expensive.
JP-A-4-224740 JP-A-8-336595 JP-A-9-192214 Japanese Patent Laid-Open No. 7-313513 JP 2000-245 A JP 2000-354624 A

  The present invention provides a puncture and suction device that can easily suck a large amount of internal solution without leaking a large amount thereof during endoscopic surgery, for example, when aspirating the content of ovarian cyst, and does not accidentally penetrate the ovary during puncture. It is to provide.

The present invention
(1) In a puncture and suction device composed of an inner needle, an aspiration tube for aspirating organ content fluid, an outer cylinder for accommodating the inner needle and the aspiration tube, and an operation gripping part, the tip of the aspiration tube is fixed to the organ A puncture and suction device characterized by comprising means,
(2) The puncture suction device according to (1), wherein the inner needle and the suction tube slide out of the outer cylinder and protrude.
(3) The puncture and suction device according to (1) or (2), which has an overpuncture prevention unit that controls a width of sliding from the outer cylinder in order to prevent overpuncture of the inner needle and the suction tube.
(4) The puncture suction device according to (1), wherein the tip of the suction tube is fixed to an organ with two balloons.

  According to the present invention, it is possible to easily prevent a large amount of cyst solution from leaking from the ovary, and to prevent an erroneous operation that penetrates the ovary when inserting the inner needle, thereby reducing the stress on the operator, shortening the operation time, and thus the patient. Can be expected to return to society early and reduce the medical economy.

  Hereinafter, the present invention will be specifically described with reference to the drawings. FIG. 1 shows an external view of a puncture suction device according to one embodiment of the present invention. 2 to 5 are schematic views of the usage state of the present invention.

  FIG. 1 is an external view of an embodiment of the present invention, and the structure thereof is an inner needle (1), an aspiration tube (2) inserted into an organ simultaneously with the inner needle inserted, and an aspiration tube (2 ), The outer tube (3) in which the suction tube (2) and inner needle (1) can move, the switching of suction operation and the operation of moving the suction tube (2), the outer tube (3) An operation gripper (4) that performs sliding operation, an inner balloon (5) that is placed on the inside of the organ and fixed inside the organ, and is placed on the outer circumference of the suction tube (2). The outer balloon (6) for fixing the organ by being placed outside the stool, and the over-stab prevention part (7) installed in the operation gripping part (4) for controlling the penetration length.

(Inner needle)
The inner needle (1) is usually produced by injection molding, extrusion molding or metal processing. The outer diameter of the inner needle (1) is preferably φ1 to φ8 mm. If the diameter is less than 1 mm, the suction efficiency of the highly viscous inner solution is particularly bad, and if it exceeds 8 mm, the ovary is thick. The total length is preferably 20-50 cm. This is because if it is less than 20 cm, it may not reach the organ, and if it exceeds 50 cm, the operability of the treatment tool will deteriorate. The inner needle (1) may be tubular, and the inner diameter is preferably φ0.5 to φ7 mm. The needle tip of the inner needle (1) may have a sharp shape, and may have a shape like a conical shape or an oblique cut. The material used for the inner needle (1) is usually a metal material such as stainless steel, but a hard synthetic resin such as polycarbonate resin is also used.

(Suction tube)
The suction tube (2) is a conduit having a lumen, and is usually produced by injection molding, extrusion molding or metal processing. The inner diameter is formed so that the inner needle (1) is in close contact with the inner needle (1) without any step and the inner needle (1) is removed. The wall thickness is 0.1-2 mm. An inner balloon (5) and an outer balloon (6) for fixing the organ are installed at the tip of the suction tube by a method such as adhesion. In addition, a soft material may be formed by insert molding or the like so as not to damage the internal organs at the cutting edge. The material used for the suction pipe (2) is usually a metal material such as stainless steel, but a hard synthetic resin such as polycarbonate resin is also used. As the soft material at the tip, it is desirable to use a flexible material such as natural rubber, silicone rubber, soft vinyl chloride resin, polyurethane resin, polyethylene resin, polypropylene resin, polyethylene terephthalate resin.

(Outer cylinder)
The outer cylinder (3) is usually produced by injection molding or extrusion molding. The method of attaching to the operation gripping part (4) is a detachable method such as fitting into the operation gripping part (4) or screwing so that the outer cylinder (3) can be slid by sliding the outer cylinder slide lever in Fig. 1 Alternatively, it may be attached by bonding with a solvent or an adhesive, welding with ultrasonic waves or high frequency. The outer cylinder (3) has an inner diameter of 3 to 14 mm and an outer diameter of 4 to 15 mm. If the inner diameter is less than 3 mm, the inner diameter of the suction pipe (2) for sucking the content liquid becomes smaller, the suction efficiency of the inner solution is poor, and the outer diameter is limited to the diameter of the trocar to be inserted. The length is enough to cover the inner needle (1) and suction tube (2) to the tip before use. By sliding the outer cylinder slide lever, the inner needle (1) and suction tube (2) Can be short. Materials used for the outer cylinder (3) are hard synthetic resins such as hard vinyl chloride resin, polycarbonate resin, and ABS resin, and metal materials such as stainless steel.

(Operation gripping part)
The operation gripping part (4) is usually produced by injection molding. Inner balloon that inflates the inner balloon (5) and outer balloon (6), which sucks the solution in the operation gripping part (4), injects physiological saline, and slides the outer cylinder (3), and the inner balloon (5) and outer balloon (6) It is preferable to provide an over-stab prevention part (8) for moving the injection port, the outer balloon inlet, the inner needle (1), and the suction tube (2). The material used for the operation gripping part (4) is a hard synthetic resin such as hard vinyl chloride resin, polycarbonate resin or ABS resin, or a metal material such as stainless steel.

(Inner balloon, outer balloon)
Inner balloon (5) and outer balloon (6) are fixing means for preventing organ dropout. Inner balloon (5) and outer balloon (6) are used for extrusion molding, blow molding, compression molding, dipping, sheet welding, etc. Formed by the method. At the tip of the suction tube (2), it is installed by bonding or welding. The width in the longitudinal direction of the inner balloon (5) and the outer balloon (6) is 10 to 30 mm, and the expanded diameter is preferably φ5 to φ35 mm. Although the interval between the inner balloon (5) and the outer balloon (6) varies depending on the size, it is desirable that the inner balloon (5) and the outer balloon (6) are in close contact during inflation. As materials used, rubbers such as silicone rubber and natural rubber, and synthetic resins such as soft vinyl chloride resin, SEBS resin, and polyurethane are used. The outer diameter after installation is limited to the inner diameter of the outer cylinder (3).

(how to use)
Next, actual usage of the puncture and suction device according to the present invention will be described with reference to FIGS. 2 to 5 to clarify the effects of the present invention. Insert the inner needle (1) and suction tube (2) into the abdominal cavity through the trocar with the inner needle (1) and suction tube (2) positioned inside the outer cylinder as shown in Fig. 2, and press the tip of the outer cylinder (3) against the ovary. With the tip pressed against the ovary as shown in Fig. 3, the inner needle (1) and suction tube (2) are inserted until the over-stab prevention part (8) stops and gradually inserted into the ovarian cyst. Since the piercing width is controlled by the excessive piercing prevention section (7), it cannot be penetrated by mistake. Here, as shown in FIG. 4, the inner balloon (5) is inflated to fix the suction tube (2) to the ovarian cyst, and the inner balloon (5) fixes the ovarian cyst from the inside. Subsequently, as shown in FIG. 5, the outer cylinder (3) is slid using the outer cylinder slide lever until the outer balloon (6) is exposed, and the outer balloon (6) is inflated to fix the ovarian cyst from the outside. Since the suction tube (2) is fixed to the ovarian cyst by the inner balloon (5) and the outer balloon (6), it does not easily fall off, and leakage of the contents can be suppressed. Remove the inner needle (1) and connect it to the suction tube to aspirate the contents.

  The present invention can minimize leakage of the internal solution by being used not only for aspiration of an internal solution such as a cyst in endoscopic surgery but also for aspiration of an internal solution such as a cyst in open surgery.

It is an external view of the puncture suction device which becomes one Example of this invention. (Example 1) It is the schematic which shows the use condition of the puncture suction device which becomes one Example of this invention. It is the schematic which shows the use condition of the puncture suction device which becomes one Example of this invention. It is the schematic which shows the use condition of the puncture suction device which becomes one Example of this invention. It is the schematic which shows the use condition of the puncture suction device which becomes one Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inner needle 2 Suction tube 3 Outer cylinder 4 Operation grip part 5 Inner balloon 6 Outer balloon 7 Over-stab prevention part

Claims (4)

  In a puncture and suction device comprising an inner needle, an aspiration tube for aspirating organ content fluid, an outer cylinder for accommodating the inner needle and the aspiration tube, and an operation gripping portion, a means for fixing to the organ is provided at the distal end of the aspiration tube A puncture suction device characterized by that.   2. The puncture suction device according to claim 1, wherein the inner needle and the suction tube slide out of the outer cylinder.   3. The puncture and suction device according to claim 1, further comprising an overpuncture prevention unit that controls a width of sliding from the outer cylinder in order to prevent overpuncture of the inner needle and the suction tube. 2. The puncture and suction device according to claim 1, wherein the tip of the suction tube is fixed to the organ with two balloons.

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