JP2011193924A5

JP2011193924A5 - Indwelling catheter changer

Info

Publication number: JP2011193924A5
Application number: JP2010061307A
Authority: JP
Filing date: 2010-03-17
Publication date: 2013-03-21
Anticipated expiration: 2030-03-17

Description

前記目的を達成するために、本発明の留置カテーテル交換器具は、瘻孔を介して先端が体腔内に挿入される可撓性を有するチューブと、前記チューブの先端に設けられ体腔内からのチューブの抜出しを規制する可撓性を有する体腔内固定部とを備える留置カテーテルを体腔内から抜去すると共に、交換用の留置カテーテルを患者に装着するための交換器具であって、瘻孔に挿入される外筒と、前記外筒内に少なくとも一部が挿入され内部に前記チューブを挿通可能な内筒とを有し、前記内筒は可撓性部材で形成され、前記外筒に挿入される円筒状の内筒本体を有し、前記内筒本体の先端から長さ方向に沿って基端側に延設されるスリットが形成され、前記外筒は、前記内筒本体の外方への展開を抑制する弾性部材からなることを特徴とする。 To achieve the above object, indwelling catheters exchange exchanger device of the present invention includes: a tube having a flexible tip through the fistula is inserted into a body cavity, from the body cavity is provided at the distal end of the tube the indwelling catheter and a body cavity fixing portion that having a flexible regulating the withdrawal of the tube as well as removed from the body cavity, the indwelling catheter for replacement a replacement device for attachment to a patient, the fistula An outer cylinder that is inserted into the outer cylinder, and an inner cylinder that is at least partially inserted into the outer cylinder and into which the tube can be inserted. The inner cylinder is formed of a flexible member, a cylindrical inner tube body to be inserted, a slit which extends proximally along the length from the distal end of the inner barrel body is formed, the outer cylinder has an outer of the inner tube body It consists of the elastic member which suppresses the expansion | deployment to the direction, It is characterized by the above-mentioned.

本発明の留置カテーテルの交換器具によれば、前記外筒及び内筒の先端部から前記チューブの基端部を挿入し、前記チューブに沿って前記外筒及び前記内筒本体を体腔内に挿入し、この状態で前記チューブを後方に引っ張ると、前記体腔内固定部が前記内筒の先端部に圧接される。このとき、前記内筒は可撓性部材からなり、その先端から長さ方向に沿って基端側にスリットが形成されているので、前記内筒本体の先端部が前記体腔内固定部の外形に沿って前記内筒の外周方向に展開する。またこのとき、前記体腔内固定部は、前記内筒本体の内面形状に案内されて変形される。従って、前記体腔内固定部を、弱い力で内筒の内部に引き込むことができる。 According to the indwelling catheter exchange device of the present invention, the proximal end portion of the tube is inserted from the distal end portion of the outer tube and the inner tube, and the outer tube and the inner tube main body are inserted into the body cavity along the tube. In this state, when the tube is pulled backward, the body cavity fixing portion is pressed against the distal end portion of the inner cylinder. At this time, the inner cylinder is made of a flexible member, and a slit is formed on the proximal side along the length direction from the distal end thereof, so that the distal end portion of the inner cylinder main body is the outer shape of the body cavity fixing portion. Along the outer circumferential direction of the inner cylinder. At this time, the body cavity fixing portion is guided and deformed by the inner surface shape of the inner cylinder main body. Therefore, the body cavity fixing portion can be pulled into the inner cylinder with a weak force.

また、前記内筒は、基端側に筒状の把持部材が着脱自在に装着されていることが好ましい。当該構成によれば、前記外筒及び内筒を、前記チューブを介して瘻孔内に挿入する際には、術者が前記把持部材を把持して処置を行うことができるので、容易に且つ確実に前記外筒及び内筒を瘻孔内に挿入することができる。 Further, it is preferable that a cylindrical gripping member is detachably mounted on the base end side of the inner cylinder. According to this configuration, when the outer cylinder and the inner cylinder are inserted into the fistula through the tube, the operator can perform the treatment by grasping the grasping member. The outer cylinder and the inner cylinder can be inserted into the fistula.

また、前記把持部材は前記内筒に着脱自在であるため、前記把持部材を前記内筒から取り外すことにより、留置カテーテルを挿通させる長さを短くすることができる。従って、留置カテーテルを抜去した後、交換用の留置カテーテルを瘻孔内に挿入する際の術者の処置が容易となる。 Also, the grasping member because it is detachably attached to the inner tube, by detaching the gripping member from the inner cylinder, it is possible to shorten the length that is inserted through the indwelling catheter. Therefore, after the indwelling catheter is removed, it is easy for the operator to insert the replacement indwelling catheter into the fistula.

Claims

A tube having a flexible tip through the fistula is inserted into a body cavity, and body cavity fixing portion that having a flexible regulating the extraction of the tube from the body cavity is provided at the distal end of the tube An indwelling catheter that is removed from the body cavity, and an exchange device for mounting an indwelling indwelling catheter to a patient,
An outer cylinder that is inserted into the fistula, and an inner cylinder that is at least partially inserted into the outer cylinder and into which the tube can be inserted.
The inner cylinder is formed of a flexible member has a cylindrical inner tube body which is inserted into the outer cylinder, which extends proximally along the length from the distal end of the inner tube body Slits are formed,
The outer cylinder is indwelling catheter exchange exchanger device, characterized in that it consists of inhibiting the elastic member to expand outwardly of the inner barrel body.

The exchange tool according to claim 1, wherein the inner cylinder includes a long hole formed in the slit along the length direction.

The exchange tool according to claim 1 or 2, wherein a cylindrical gripping member is detachably mounted on the base end side of the inner cylinder.

The exchange tool according to any one of claims 1 to 3, wherein the inner cylinder is detachably attached to the outer cylinder.

The exchange tool according to any one of claims 1 to 4, wherein the outer cylinder includes a folded portion that is folded back from an end of the inner cylinder to an inner peripheral surface.

A shaft portion that is longer than the inner cylinder and that can be inserted into the inner cylinder; and a locking portion that is provided at a distal end of the shaft portion and that can lock the tube. A tube insertion tool that is inserted from the proximal end side of the tube and exposed from the distal end side, and the tube portion is inserted into the inner tube by pulling the shaft portion in a state where a portion of the tube is locked to the locking portion. The exchange device according to any one of claims 1 to 5, further comprising: