JP6397960B1 - Operation tool for reservoir set for balloon expansion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the mounting of a balloon catheter by expanding a balloon even with handicapped fingers. An operating tool for operating a reservoir set 56 including a balloon expansion reservoir 57, a flexible tube 58, and a clamp 59 on the flexible tube 58 includes a base member 1 and a lever member 2. The base member 1 includes a first accommodating portion 15 that accommodates the reservoir 57 and a second accommodating portion 16 that accommodates the clamp 59. The lever member 2 engages with the base member 1 so as to be relatively movable in the vertical direction from the first upper position to the second lower position, and to be relatively rotatable from the second position to the third position. . When the lever member 2 moves from the first position to the second position, the first pressing portion 25 of the lever member compresses the reservoir 57 accommodated in the first accommodating portion 25 and sends the fluid to the balloon. The second pressing portion 26 deforms the clamp 59 accommodated in the second accommodating portion 26 of the base member 1 to the blocking position when the lever member 2 rotates from the second position to the third position. [Selection] Figure 9

Description

  The present invention relates to an operation tool for operating a reservoir set for balloon expansion, which is used for a living indwelling balloon catheter such as a urinary catheter.

  A balloon catheter for guiding urine is known as disclosed in Patent Document 1, for example. The catheter includes a shaft that reaches the bladder through the urethra, a balloon provided at a distal end portion of the shaft, and a funnel attached to the proximal end side of the shaft. A urine collection bag is connected to the funnel, and a reservoir set for balloon expansion is connected via a branch pipe. An opening for leading urine stored in the bladder is formed at the most distal end portion of the shaft. This opening communicates with the funnel through the first passage in the shaft. On the other hand, the reservoir for storing the balloon expansion fluid and the balloon communicate with each other through the second passage in the shaft via a flexible tube and a funnel branch tube. A clamp is engaged on the extension of the flexible tube connecting the funnel branch tube and the reservoir. This clamp has the role of controlling the communication and blocking between the balloon and the reservoir.

JP 2007-167483 A

  The conventional balloon catheter requires an operation of compressing the reservoir and pumping the expansion fluid to the balloon, and then an operation of closing the flexible tube by operating the clamp. It is not always easy for the handicapped user. Therefore, an object of the present invention is to provide an operation tool that can easily perform the operation of feeding an expansion fluid by compressing a reservoir and the subsequent operation of closing the flexible tube by clamping. .

Hereinafter, the present invention will be described with reference to the accompanying drawings, but the present invention is not limited thereto.
The operation tool of the present invention for solving the above-described problem is for operating a reservoir set 56 including a reservoir 57, a flexible tube 58, and a clamp 59 on the flexible tube 58 in a balloon catheter. And a lever member 2. The base member 1 includes a first accommodating portion 15 that positions and accommodates the reservoir 57 and a second accommodating portion 16 that positions and accommodates the clamp 59. The lever member 2 includes first and second pressing portions 25 and 26, and is relatively movable in the vertical direction relative to the base member 1 from the upper first position to the lower second position, and further to the second member. The base member 1 is engaged with the base member 1 so as to be relatively rotatable from the position to the third position. The first pressing portion 25 of the lever member compresses the reservoir 57 housed in the first housing portion of the base member and sends the fluid to the balloon 53 when moving vertically downward from the first position to the second position. The second pressing portion 26 deforms the clamp 59 housed in the second housing portion 26 of the base member 1 to the blocking position when the lever member 2 rotates from the second position to the third position.

  According to the operation tool for the reservoir set of the present invention, the reservoir set is accommodated in the accommodating portion of the base member, and the lever member is vertically pushed down to the second position, whereby the reservoir compression operation is completed, and then the third position is reached. Since the engagement operation of the clamp is completed by rotating to the left, the indwelling operation of the balloon catheter in the living body can be easily performed without requiring assistance even with a non-free finger.

It is a perspective view of the operation tool of the reservoir set of the present invention. It is a top view of the base member in the operation tool of FIG. It is a front view of the base member in the operation tool of FIG. It is IV-IV sectional drawing in FIG. It is VV sectional drawing in FIG. It is a bottom view of the lever member in the operation tool of FIG. It is VII-VII sectional drawing in FIG. It is VIII-VIII sectional drawing in FIG. It is a longitudinal cross-sectional view which shows the operation process of the operation tool of FIG. It is explanatory drawing of the positional relationship of the base member and lever member corresponding to the operation process of FIG. It is a block diagram of the balloon catheter which expands and hold | maintains a balloon with the operation tool of FIG.

  First, a urinary balloon catheter which is an example of a balloon catheter operated using the operation tool 1 of the present invention will be described with reference to FIG. The catheter 51 includes a shaft 52 that reaches the bladder through the urethra, a balloon 53 provided at a distal end portion of the shaft 52, and a funnel 54 attached to the proximal end side of the shaft 52. A urine collection bag 55 is connected to the funnel 54, and a reservoir set 56 for balloon expansion is connected via a branch pipe 54a.

  The reservoir set 56 includes a reservoir 57 that contains a balloon-expanding fluid, a flexible tube 58 that connects the branch tube 54a and the reservoir 57, and a clamp 59 that engages the extended tube 58. .

  An opening 60 for leading out urine stored in the bladder is formed at the most distal end portion of the shaft 52. The opening 60 communicates with the funnel 54 through the first passage in the shaft 52.

  On the other hand, the reservoir 57 that stores the balloon expansion fluid and the balloon 53 communicate with each other via the second passage in the shaft 52. When the reservoir 57 is compressed and fluid is sent to the balloon 53, the balloon 53 expands within the bladder, as indicated by phantom lines.

  The clamp 59 has a role of controlling communication and blocking between the balloon 53 and the reservoir 57, and after the balloon 53 is expanded, the flexible tube 58 is closed to maintain the expansion of the balloon 53. The clamp 59 is made of an elastic synthetic resin, and a pair of opposing leg portions 59a that are curved and continuous on the base end side, a fastening protrusion 59b that is formed at a position facing the inside of the leg portion 59a, and an inner side from one leg portion 59a. And an engagement piece 59c having an engagement claw 59d at the tip. A flexible tube 58 passes through the curved portion on the proximal end side of the clamp 59 and the engagement piece 59c. When the pair of legs 59a are compressed so as to be closed, the fastening protrusion 59b approaches to close the flexible tube 58, and at the same time, the engaging claw 59d engages with the tip of the other leg 59a to maintain the closed state. To do.

The present invention relates to an operating tool for operating a reservoir set 56 that controls the balloon 53 of the balloon catheter 51 as described above.
In FIG. 1, the operation tool of the balloon expansion reservoir set according to the present embodiment of the present invention includes a base member 1 and a lever member 2 which are made of synthetic resin and are fitted to each other up and down.

  As shown in FIGS. 1 to 5, the base member 1 is a substantially rectangular parallelepiped box shape having a front wall 11, a rear wall 12, both side walls 13, and a bottom surface 14. 1 accommodation recessed part 15 and the 2nd accommodation recessed part 16 open | released upwards ahead are comprised. The first housing recess 15 and the second housing recess 16 are connected to each other, the reservoir 57 is housed in the first housing recess 15, and the clamp 59 is housed in the second housing recess 16. The second housing recess 16 is opened forward by a longitudinal notch 11a through which the flexible tube 58 is passed. The first accommodating recess 15 has a shape for positioning and accommodating the reservoir 57. The second accommodating recess 4 has a shape for positioning and accommodating the clamp 59 so that the engaging piece 59c faces upward and the leg portion 59a can be compressed vertically.

  As shown in FIGS. 1, 6 to 8, guide ridges 17 extending vertically downward from the vicinity of the upper end edge are formed on the outer surface of the intermediate portion of the side walls 13 of the base member 1. The front corner of the lower end portion of the guide protrusion 17 forms an arc surface 17a. Guide bosses 18 are formed on the outer surfaces of the upper rear corners of the side walls 13.

  The lever member 2 includes a front wall 21, a rear plate 22, both side plates 23, and a top wall 24, and has a substantially rectangular parallelepiped box shape that is opened downward and is fitted to the base member 1 from above. The front wall 21 is formed with a vertically long notch 21 a that faces the notch 11 a of the base member 1. On the lower surface of the top wall 24, a first pressing convex portion 25 is formed at a position corresponding to the first accommodating concave portion 15, and a second pressing convex portion 26 is formed at a position corresponding to the second accommodating concave portion 16. The first pressing convex part 25 compresses the reservoir 57 in the first accommodating concave part 15 by fitting the lever member 2 to the base member 1 and pressing it down, and sends a predetermined amount of expansion fluid to the balloon 53. The second pressing convex portion 26 compresses so as to close between the leg portions 59a of the clamp 59.

  Inside the side walls 23 of the lever member 2 are formed longitudinal guide grooves 27 for receiving the guide protrusions 17. The guide groove 27 extends upward from the lower end edge of the side wall 23 and spreads in the front-rear direction at the upper part. A longitudinal bearing groove 28 that can receive the guide boss 18 of the base member 1 is formed inside the rear portion of the side walls 23. The bearing groove 28 stops the pressing of the lever member 2 in the vertical direction at the position where the guide boss 18 abuts on the upper end thereof. When the front portion of the lever member 2 is pushed down in this state, the lever member 2 rotates downward about the guide boss 18.

  A method of using the operation tool of this embodiment will be described. The shaft 52 of the balloon catheter 51 is inserted into the body, and as shown in FIGS. 9A and 10A, the reservoir 57 of the reservoir set 56 is inserted into the first receiving recess 15 of the base member 1, and the clamp 59 is Each of the two housing recesses 16 is stored, and the lever member 2 is fitted to the first position on the base member 1.

  From this state, as shown in FIGS. 9B and 10B, the lever member 2 is pushed down vertically to the second position where the guide boss 18 contacts the upper end of the bearing groove 28. As a result, the reservoir 57 is compressed, the contained fluid is sent to the balloon 53 by a predetermined amount, and the balloon 53 is expanded in the body.

In this second position, as shown in FIG. 10 (B), enlarged portion of the guide groove 27 reaches the arcuate surface 17a of the guide projection 17. By the arc surface 17a of the enlarged portion and the guide projection 17 of the guide groove 27, the guide projection 17 is Ru accepted to be relatively displaceable in the guide groove 27. Here, as shown in FIG. 9 (C), FIG. 10 (C), the the Ru press down the front of the lever member 2, the rotation up to the third position of the lever member 2 around the guide boss 18 is not impeded . In the third position of the lever member 2 to close between the legs 59a of the clamp 59 compresses the flexible tube 58 between the clamping projections 59, closes the flow path, also in the engaging claws 59d of the leg 59a The front end is engaged, and the closed state is maintained.

DESCRIPTION OF SYMBOLS 1 Base member 11 Front wall 11a Notch 12 Rear wall 13 Side wall 14 Bottom face 15 1st accommodation recessed part 16 2nd accommodation recessed part 17 Guide protrusion 17a Arc surface 18 Guide boss 2 Lever member 21 Front wall 21a Notch 22 Rear plate 23 Side plate 24 Top Wall 25 First pressing convex portion 26 Second pressing convex portion 27 Guide groove 28 Bearing groove 51 Catheter 52 Shaft 53 Balloon 54 Funnel 54a Branch tube 55 Urine collection bag 56 Reservoir set 57 Reservoir 58 Flexible tube 59 Clamp 59a Leg 59b Tightening protrusion 59c engagement piece 59d engagement claw 60 opening

Claims (2)

A telescopic reservoir for storing a fluid for expanding the balloon of the balloon catheter, a flexible tube having a proximal end connected to the reservoir and a distal end connected to a connection portion of the balloon catheter, and in the middle of the flexible tube An operation tool for a reservoir set for balloon expansion, comprising: a clamp that is held and held in order to block the flow path of the flexible tube by being deformed by pressing in the direction perpendicular to the axis of the flexible tube,
A base member comprising a first housing part for positioning and housing the reservoir and a second housing part for positioning and housing the clamp;
The base from a first position above a freely move in the vertical direction to a second position of the lower relative member, comprising a lever member engaged from the second position to freely into rotation the third position,
The lever member compresses the reservoir accommodated in the first accommodating portion when vertically moving from the first position to the second position, and sends a fluid to the balloon. Operation of the balloon expansion reservoir set, comprising: a second pressing portion that deforms the clamp housed in the second housing portion to the blocking position when rotating from the second position to the third position. Ingredients. The base member includes a pair of parallel vertical walls, a guide boss and a guide protrusion protruding from the outer walls of the vertical walls,
The lever member includes a pair of parallel vertical walls that are in sliding contact with the outside of the vertical wall of the base member, a first guide groove that is formed on an inner wall of the vertical wall and engages the guide boss, and the guide protrusion. A second guide groove to be engaged,
The first guide groove extends vertically and is provided to guide the vertical downward movement of the lever member from the first position to the second position until the guide boss contacts the upper end of the first guide groove.
The second guide groove and the guide protrusion guide the vertical downward movement of the lever member from the first position to the second position, and the guide boss from the second position to the third position. in response to rotation of said lever member having a center, balloon expansion according to claim 1 in which the guide projection reaching the second position is characterized in that it is provided so as to be relatively displaceable in the second guide groove Reservoir set operation tool.

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