JP3690701B2 - Medical body cavity hermetic retainer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a medical airtight retainer for maintaining a small incision site in a closed state and temporarily maintaining airtightness in a body cavity mainly in surgical treatment.
[0002]
[Prior art]
In recent years, laparoscopic surgery has rapidly spread and its indication is expanding. In laparoscopic surgery, it is necessary to provide a space in the abdominal cavity in order to secure the surgical field, and as a means for that purpose, two methods, the pneumoperitoneum method and the lifting method, have been taken.
[0003]
The pneumoperitoneum is a technique for inflating the abdominal cavity into a tent shape by supplying carbon dioxide into the abdominal cavity via an abdominal needle punctured into the abdominal cavity. On the other hand, in the lifting method, a visual field is developed by passing a metal wire or the like subcutaneously or in all layers and lifting the whole wire.
Each method has its merits and demerits, but since the field of view and operability are different, the pneumoperitoneum method and the lifting method are selectively applied depending on the target site and surgical technique.
(Advantages and problems of abdominal wall lifting method in laparoscopic surgery: JSES 1996.6.6 p223-p227)
[0004]
Normally, laparoscopic surgery can be performed only with one of the methods, but complicated procedures such as excision and suturing cannot be performed under the pneumoperitoneum such as exfoliation as the surgical procedure expands. Techniques for performing operations via a small opening by the lifting method have been seen particularly in the operation of the small intestine. In this case, it is easy to switch from the pneumoperitone method to the lifting method.
[0005]
However, in order to return from the lifting method to the pneumoperitoneal method, the small incision must be re-stitched to maintain hermeticity. For this reason, it has been a time consuming and laborious method.
[0006]
As a method for solving this problem, the abdominal wall is sandwiched from inside and outside by a movable metal disk placed on a metal rod and two semi-discs that become one disk when slid to form a screw-like part. Airtight holders that can be fixed in place have been devised and put into practical use. However, it is difficult to insert because the disc diameter is fixed, it cannot cope with the difference in incision size, there is a possibility of narrowing the visual field inside the abdominal cavity due to its weight, and it is exposed outside the abdominal wall There was a possibility that the fixing mechanism to disturb the progress of the operation.
[0007]
[Problems to be solved by the invention]
The present invention has been made as a result of various studies in order to solve such a problem of a switching method with a small incision surgical operation in a conventional laparoscopic surgical operation, and maintains airtightness in a body cavity. Of course, the simplified method of fixing the airtight plate can shorten the time for switching the operation method, can cope with the difference in the size of the incision, and obstructs the operation of the operator due to unnecessary projections. It is an object of the present invention to provide a medical body cavity hermetic retainer without a medical device.
[0008]
[Means for Solving the Problems]
That is, the present invention has a flexible airtight plate provided inside a body cavity to which one or more fixing threads are connected, and one or more fixing grooves for caulking and fixing the fixing threads. A fixing plate provided outside the body cavity , and the fixing thread communicates with the fixing groove, and the fixing thread is fixed and released by the fixing groove, so that the fixing plate and the airtight plate are separated at an arbitrary interval. It is possible to fix, hold the inside and outside of the body cavity by the airtight plate and the fixing plate, maintain the closed state of the small incision site by the opposing airtight plate and the fixing plate, and temporarily keep the airtight in the body cavity This is a medical body cavity hermetic retainer.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 2 is a schematic view showing an embodiment of an airtight retainer in a body cavity according to the present invention, FIG. 1 is an example of the configuration, FIG. 2A is an example of use in maintaining airtightness in the abdominal cavity, and FIG. Fig. 3 shows an example of a method of fixing the fixing thread (3) and the fixing plate (2), and Fig. 3 shows an example of a method of inserting the airtight plate (1) into the small opening (6).
The airtight retainer in a body cavity of the present invention is connected to the airtight plate (1) having flexibility and covering the small opening (6) from the inside of the body cavity and holding the airtightness inside the body cavity, and the airtight plate (1). The fixing thread (3) and a fixing plate (2) for fixing the fixing thread (3) outside the body cavity are constituted.
[0011]
The airtight plate (1) is made of a flexible material such as natural rubber, silicone rubber, soft vinyl chloride resin, polyurethane resin, etc., in order to obtain sufficient strength and sufficient operability to maintain airtightness. In addition, a thickness of 0.1 to 10.0 mm is desirable. The shape is preferably circular or elliptical in order to avoid bleeding and organ damage, and from the viewpoint of cost and operability. In consideration of operability, it is desirable that the area has a diameter that is 1 to 2 times the length of the small opening (6). Depending on the case, a reinforcing part (7) may be attached in order to maintain airtightness. The surface shape may be flat, or a groove may be provided to increase the contact area and ensure higher airtightness.
[0012]
The fixing plate (2) has a fixing groove (4) for fixing the fixing thread (3). Since the fixing groove (4) is fixed by caulking the fixing thread (3), it is desirable from the viewpoint of productivity that the shape is simply parallel or tapered. The width of the minimum portion of the fixing groove (4) is desirably a width that allows the fixing yarn (3) to be caulked, preferably 20 to 80% of the diameter value of the fixing yarn (3), more preferably 30 to 50%. Is preferable from the viewpoint of productivity. The number of the fixing grooves (4) is not particularly limited as long as a sufficient fixing force can be obtained. However, in order not to damage the slit opening unnecessarily by the fixing thread (3), and to maintain a balance, the number is two to three. It is desirable to be. The thickness of the fixing plate (2) may be a thickness that provides sufficient strength, and is preferably 1.0 to 3.0 mm from the viewpoint of productivity. The shape is not particularly limited, but a circle or an ellipse is appropriate in order to avoid damaging the body due to an angular shape and from the viewpoint of operability. The size needs to be large enough to cover the small opening (6), and preferably the same size as the airtight plate (1) from the viewpoint of operability and airtightness. The material is preferably a hard material such as hard vinyl chloride resin or ABS resin because sufficient strength can be obtained, but it is not necessarily limited to such a material.
[0013]
The number of the fixing yarns (3) is not particularly limited as long as a sufficient fixing force can be obtained, but in order not to damage the notch opening unnecessarily, to maintain balance, and to communicate with the fixing grooves (4). Therefore, it is desirable that the number is 1 to 3. The fixing thread (3) can be fixed to the hermetic plate (1) by passing the fixing thread (3) once through the hermetic plate (1) and fixing it by making a knot, or by piercing it twice and looping it. Although it is reasonable from the viewpoint of productivity, the method is particularly limited as long as sufficient strength is obtained and the fixing thread (3) and the fixing groove (4) communicate with each other. Not. The thickness of the fixing thread (3) is not particularly limited, but is preferably about 0.3 to 8.0 mm in diameter in order to maintain strength and not to unnecessarily expand the slit opening (6). Is preferably 0.5 to 2.0 mm. The fixing yarn (3) is preferably twisted yarn or knitted yarn in order to obtain a sufficient fixing force to be fixed to the fixing groove (4), but is not limited thereto.
[0014]
When inserting the hermetic plate (1) into the slit opening (6), the hermetic plate (1) is larger than the slit opening (6), so the outer dimension is reduced by folding the hermetic plate (1) into two or more. And insert. After the insertion, the airtight plate (1) returns to its original shape in the abdominal cavity and covers the cut opening (6). This is brought into close contact with the abdominal wall (5) by pulling the fixing thread (3), and the pulled state is maintained by the fixing plate (2), thereby keeping the abdominal cavity airtight.
[0015]
The fixing thread (3) is fixed by caulking the fixing thread (3) in the fixing groove (4) of the fixing plate (2). Preferably, the fixing thread (3) is crimped to the fixing groove (4) of the fixing plate (2) while being pulled while pressing the fixing plate (2) against the abdominal wall (5). As a result, the airtight plate (1) in the abdominal cavity is in close contact with the abdominal wall (5), and sufficient airtightness retention is obtained.
[0016]
At the time of removal, by removing the fixing thread (3) from the fixing groove (4), the fixing plate (2) and the airtight plate (1) are easily released, and the airtightness in the abdominal cavity is released. The airtight plate (1) in the abdominal cavity can be easily removed because it has flexibility.
[0017]
【The invention's effect】
As described above, when the medical body cavity hermetic retainer according to the present invention is used, airtightness in the body cavity can be maintained, as well as attachment to and removal from the incision can be facilitated, and the airtight plate is flexible. Because it is made of a certain material, it can cope with the difference in the size of the incision, and since there is no projection protruding outside the body cavity, it is extremely useful without hindering the behavior of the operator.
[0018]
[Brief description of the drawings]
FIG. 1 is a schematic view showing an embodiment of a configuration of a body cavity hermetic holder according to the present invention.
FIG. 2 is a view showing an embodiment of a method for using a body cavity hermetic retainer according to the present invention.
FIG. 3 is a view showing an embodiment of a method for using the intra-body-cavity hermetic retainer according to the present invention.
[Explanation of symbols]
1. Airtight plate2. Fixing plate 3. Fixing thread 4. Fixed groove 5. Abdominal wall 6. Cut opening 7. Reinforcement parts

Claims (1)

1 fixed yarn a plurality of connected, having an airtight plate having flexibility provided in the body cavity inside, caulking the fixing thread, the 1 plurality of fixing grooves for fixing, provided the body cavity outside The fixing thread communicates with the fixing groove, and the fixing thread is fixed and released by the fixing groove so that the fixing plate and the airtight plate can be fixed at an arbitrary interval. A medical use characterized in that the inside and outside of the body cavity are sandwiched between the airtight plate and the fixing plate, and the closed state of the small incision site is maintained by the opposing airtight plate and the fixing plate, and the airtightness in the body cavity is temporarily maintained. Body cavity airtight holder.

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