JPH08280813A - Catheter sheath with catheter fixing tool - Google Patents

Abstract

PURPOSE: To make operation extremely easy, make catheter fixation freely and quickly by constituting a catheter sheath of a catheter sheath body composed of a connector part and a sheath tube, and of a catheter fixing tool molded in one body with a grasping part and a grip part. CONSTITUTION: A grip part is grasped by an operator, and a gap 13 is formed on the upper part of a grasping part 11 so that the grasping part 11 is opened or closed toward the right and left sides when operated, and a sandwiching recessed groove 14 is carved in the vertical direction of an opposed wall face via the gap 13 so that a catheter 20 is sandwiched in a closed condition of the gap 13. Also, a hook part 15 by which the connector part 2 is sandwiched is formed on the lower part of the grasping part 11 and a pawl 16 is projectingly arranged inside the end part thereof, and the fitted recessed part 4 of the connector part 2 is sandwiched. Therefore, sandwiching the catheter 20 by means of the sandwiching recessed groove 14 and fixation of the fitted recessed part 4 by means of the hook part 15 and the pawl part 16 can be performed in a single operation, thereby, fixation operation of the catheter 20 can be performed extremely easily because the pawl 16 is also opened/closed at the same time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an assisting tool used for percutaneously inserting a catheter into a blood vessel.

[0002]

2. Description of the Related Art As a device used for percutaneously inserting a catheter into a blood vessel, there is an auxiliary device commonly called an introducer. The introducer is composed of a catheter sheath in which a sheath in which a catheter is inserted is fixed to a connector having a hemostasis valve, and a dilator for inserting the catheter sheath to reinforce it and expanding the blood vessel. ing. That is, the introducer is inserted to the target position with the dilator inserted through the catheter sheath by using the guide wire as a guide by the Seldinger method or the like. After that, the dilator is removed, the catheter is inserted into the lumen of the catheter sheath, the tip of the catheter is advanced to the target position, and angiography and other operations are performed. The hemostatic valve internal connector fixed to the catheter sheath has a function of preventing bleeding during this operation.
When performing this contrast, a contrast agent is injected into the catheter, but at that time, the contrast agent is vigorously ejected from the tip of the catheter, and in response to this, the catheter retracts from the target position, and an ideal angiographic image is obtained. There were often no cases. Further, due to the respiratory movement, the catheter inserted into the catheter sheath is displaced and cannot be held at a fixed position. Therefore, in order to prevent this, the practitioner fixes the catheter with fingers and performs angiography.

[0003]

When performing contrast, X-ray irradiation is performed. As described above, the practitioner fixes the sheath and the catheter with his / her fingers and performs the procedure. However, it is not preferable because there is a risk of damaging health. The present invention is to eliminate such an adverse effect and facilitate the treatment.

[0004]

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a fixture capable of reliably fixing a catheter inserted through a hemostatic valve internal connector portion of a catheter sheath by one operation, and the fixture. We propose a catheter sheath provided with a hemostasis valve internal connector that can be fitted, and the catheter fixing tool is operated by operating a bifurcated handle to insert the catheter and the hemostatic valve internal connector. The part and the part can be grasped.

[0005]

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front explanatory view showing the outline of the embodiment, and FIG. 2 is a perspective view of a catheter fixing tool (10). The catheter sheath body (1) is composed of a connector portion (2) and a sheath tube (5). The connector portion (2) has a proximal end portion which is open so that a catheter (20) can be inserted therethrough, and a hemostatic valve (3) is provided in the vicinity thereof. And a fitting recess (4) are provided. The catheter fixture (10) has a grip (11).
The handle part (12) formed in a bifurcated shape is integrally formed, and when the practitioner holds the handle part (12) and operates it, the grip part (11) can be opened or closed left and right. A gap (13) is provided in the upper part of the gripping part (11) so that the catheter can be clamped in a state where the gap (13) is closed, and wall surfaces facing each other through the gap (13). A holding groove (14) is bored in the vertical direction. Therefore, the width of the gap (13) and the depth of the sandwiching groove (14) are relatively determined, but for the purpose of sandwiching the catheter, the sandwiching groove (14) is deepened to form the gap (13). It is conceivable to reduce the width of. A hook (1) for holding the connector (2) is provided below the grip (11).
5) is provided and a claw (16) is projectingly provided inside the end of the hook (15) so that the fitting recess (4) can be held. That is, by gripping the grip portion (12) with strength or weakness, the gap (13) and the hook portion (15) and hence the claw (16) are opened and closed at the same time, so that the holding groove (14) holds the catheter (20). Since the fitting concave portion (4) can be fixed by the hook portion (15) and the claw (16) with one touch, the operator can easily fix the catheter (20). Moreover, since the catheter (20) can be fixed without the need for grasping by the practitioner's fingers, an imaging operation can be performed from a position where X-ray exposure is avoided.

[0006]

The operation and effect of the present invention, the catheter sheath with a catheter fixing device according to the present invention is extremely easy to operate, and the catheter can be fixed to the catheter sheath freely and speedily. Not only can the invasion of the patient be reduced, but a favorable effect on the health management of the practitioner can be obtained.

[Brief description of drawings]

FIG. 1 is a front explanatory view showing an outline of an embodiment.

FIG. 2 is a perspective view of a catheter fixture (10).

[Explanation of symbols]

 1 ... Catheter sheath body 2 Connector part 3 Hemostasis valve 4 Fitting recess 5 Sheath tube 10 Catheter fixture 11 Grip part 12 Grip part 13 Gap 14 Holding groove 15 ・ ・ Hook 16 ・ ・ Claw 20 ・ ・ Catheter

Claims (1)

[Claims] 1. From a connector part (2) and a sheath tube (5) which are opened at a base end part thereof, in which a hemostatic valve (3) is internally provided, and a fitting recess (4) is provided on an outer peripheral wall thereof. And a gripping portion (1)
1) and a forked handle (12) are integrally formed,
The gripping part (11) is provided with a gap (13) at the top,
A sandwiching groove (14) is formed in the wall surface vertical direction facing each other through the gap (13), and a hook portion (15) is provided in the lower portion, and a claw (16) is provided inside the end portion of the hook portion (15). A catheter sheath with a catheter fixing device, characterized in that the catheter sheath comprises a protruding catheter fixing device (10).