JPH02104372A - Service time communication tool - Google Patents

Abstract

PURPOSE:To facilitate assembling of a tool and prevent fluid from leakage when the fluid is injected or exhausted by enlarging the dia. of a sealing part in the same dia. as the contracted end of a chip fitting part, and by forming a gap, i.e., fluid passage, between the plug part of a blocking element and the sealing part of cylinder. CONSTITUTION:A chip 13 of an injector S is fitted into a chip inserting part 1 of a communication tool until the tip of the chip 13 comes in contact with the sealing part 2. This the dia. of the chip inserting part 1 is enlarged, when the sealing part 2 in contact with this chip inserting part 1 and having the same inside dia. will increase the dia. to form a gap 14, i.e., fluid passage P, between the sealing part 2 and plug 8. If injected from an injector S, the fluid passes this gap 14 and further through a fluid passage P, i.e., between a detent part 3 and a support 9 and in the hollow of the outlet 4 to be injected into a balloon of a balloon catheter in case the outlet is connected with a tube in communication with this balloon. Thereby there is not fear of leakage of the fluid when it is injected or exhausted.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention enables communication between the inlet and the outlet by inserting a tip such as a syringe into the inlet during use, which is a communication device through which fluid could not pass through until then. The present invention relates to a communication device in use for allowing fluid to pass from an inlet side or an outlet side to an outlet side or an inlet side.

[Conventional technology]

When injecting or discharging fluid such as gas or liquid into or out of a medical device that has a balloon, such as a balloon catheter or endotracheal tube, conventionally a stopper was attached to the inlet/outlet as shown in Figure 5. A tube or a tube with a valve that opens only when injecting or discharging fluid as shown in Fig. 6 was used.The former tube with a stopper is used to prevent the balloon from bulging due to the biasing force of the balloon when injecting or discharging fluid. Remove the stopper (22) by crushing the tube (21) with your fingers to prevent the fluid inside from leaking out, and then insert the tip of the syringe into the injection port of the tube. The latter valve tube is composed of a casing (31), a valve body (32), a spring (33), and a rubber seal (34). When injecting or discharging fluid, simply insert the tip of the syringe into the tube ( 35), it is possible to communicate between the inlet and outlet of the tube.

[Problem to be solved by the invention]

However, regarding the former, these conventional techniques
- This is problematic because it requires an operation of picking with fingers or the like, and there is a risk of fluid leaking when the plug is removed. Regarding the latter, although the problem of the former can be solved, it takes time to assemble the valve due to the large number of parts that make up the valve, and it is difficult to insert the tip of the syringe against the biasing force of the spring. If the spring's biasing force is strong, a large force is required to insert the tip, and it is troublesome to keep pushing the syringe so that the tip does not come off. If it is weak,
This is problematic because there is a risk of fluid leaking when the chip is suddenly removed.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a communication device during use that is easy to assemble and does not leak fluid during fluid injection or discharge operations.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present invention provides a communication device consisting of a cylindrical body made of a soft material with both ends open, and a closure body made of a hard material inserted and supported in the cylindrical body, the cylindrical body being The hollow part of the cylindrical body has a tip insertion part whose diameter is tapered from the inlet to the outlet, and an outlet of the chip insertion part which extends from the chip insertion part in the exit direction. It consists of a seal portion formed to have an inner diameter equivalent to the inner diameter of the side end portion, a locking portion extending from the seal portion toward the outlet, and an outlet portion extending from the locking portion to the outlet, and The closing body includes a cylindrical inspection line having an outer diameter slightly larger than the inner diameter of the seal portion of the cylinder, and a substantially cylindrical support portion having a smaller diameter than the outer diameter of the inspection line and engaged with the locking portion. A fluid passage is formed in the locking part and/or the support part,
The present invention proposes a communication tool in use, which is arranged such that the trunk of the closure body and the sealing part of the cylindrical body are in contact with each other, and the support part of the closure body is locked with the locking part of the cylindrical body.

[Effect]

According to the above configuration, by selecting a syringe equipped with a tip having an outer diameter sufficiently larger than the outer diameter of the trunk of the closure body of the communication device, it is possible to easily establish fluid communication between the inlet and the outlet of the communication device. In other words, when the tip of the syringe is inserted through the entrance of the communicating device, the diameter of the tip insertion portion of the cylindrical body is expanded because the communicating device is made of a soft material such as soft vinyl chloride or polyethylene.

Then, the diameter of the seal part, which has the same diameter as the reduced diameter end of the tip insertion part, is expanded, and a gap or fluid passage is formed between the trunk of the closure body and the seal part of the cylinder body, so the fluid flows through this passage. through which it is injected or expelled.

However, regarding the size of the outer diameter of the syringe tip selected here, "sufficiently larger than the outer diameter of the trunk of the closure body of the communicating device" means that the tip of the syringe is inserted into the tip insertion part of the communicating device. The size is large enough to ensure that there is a gap between the trunk of the communication device and the seal portion when it is installed.

〔Example〕

Next, the in-use communication device of the present invention will be explained based on the drawings.

Fig. 1 is a cross-sectional view along the longitudinal axis passing through the groove portion of a communication device in use, which is a combination of a cylindrical body having an annular projection and a closure body having a groove, and Fig. 2 is a cross-sectional view taken along the longitudinal axis of the closure body shown in Fig. 1. FIG. 3 is a sectional view similar to FIG. 2 of another embodiment of the closure, and FIG. 4 is a view showing the state in which the tip of the syringe is inserted into the communicating device of FIG. 1. It is.

As shown in FIGS. 1 to 3, the in-use communication device of the present invention is composed of a cylindrical body (T) made of a soft material and a closing body (C) made of a hard material. C) is a cylinder (
T) is inserted into the hollow part of T) to close the hollow part.

The cylinder (T) is a cylindrical container with open ends made of polyethylene, soft polyvinyl chloride, ethylene vinyl acetate copolymer, rubber, elastomer, etc., and has an inlet (5) and an outlet (6). ), and in order from the inlet to the outlet, there are a chip insertion part (1), a seal part (2),
A locking part (3) and an outlet part (4) are formed.

The tip insertion part (1) is a nozzle part of a syringe, etc., where a so-called tip is inserted and attached, and has a hollow part whose diameter is tapered from the inlet (5) to the outlet (6). Since the cylindrical body (T) is made of a soft material, it expands in diameter when the tip is inserted.

The seal part (2) is in close contact with the trunk (8) of the closing body (C), which will be described later, to block the hollow part of the cylinder (T) and prevent fluid from flowing from the inlet side to the outlet side (or vice versa). The hollow portion is formed to have the same size as the inner diameter of the outlet side end of the chip insertion portion (1).

A locking portion (
3) engages with the support part (9) of the closure body (C) and closes the closure body (C).
C) is held and fixed in the hollow part, and the retention (including abutment) is mainly performed by the annular protrusion (7) provided at the lower end of the locking part (3), that is, the outlet side end. protrusion(
7) prevents the closing body (C) from moving toward the exit side. Incidentally, the engagement with the support part (9) may be performed by the inner wall of the locking part (3) and the outer wall of the support part (9), but the annular protrusion (7) or the part shown in FIG. It is preferable to use such a stepped portion (12) because it can reliably prevent the closing body (C) from moving toward the exit side.

The outlet part (4) is an end part for connecting to a medical device, for example a balloon catheter, using a connector if necessary, and in FIG. 1 the opening is slightly enlarged for convenience in shaping (centering) It has a diameter.

The closure body (C) is made of a hard material such as polypropylene, polyamide, polystyrene, polycarbonate, or acrylonitrile-butadiene-styrene copolymer, and consists of a trunk (8) and a support part (9).
The main body (8) is housed in the cylindrical body (T) so that it is in close contact with the sealing part (2), and the support part (9) is locked with the locking part (3).

The trunk (8) is a part that comes into close contact with the seal part (2) to close the hollow part of the cylinder (T), that is, the fluid passage (P),
Seal part (2) to reliably close the fluid passage (P)
It is formed into a cylindrical shape with an outer diameter slightly larger than the inner diameter.

The support part (9) is a part that supports the trunk (8), and is engaged with the locking part (3) of the cylindrical body (T), or more precisely, the part that supports the exit (6) of the closure body (C) in the lateral direction. In order to prevent migration, the end thereof is provided with an annular projection (7) shown in FIG. 1 or a step (7) shown in FIG.
12). And the support part (9) is the locking part (
It is formed in such a size and shape that a fluid passage (P) is formed between it and the locking part (3), and the overall size is that of the locking part (
The support part (9) is equal to or smaller than the inner diameter of 3).
The shape is, for example, made of a cylindrical portion with a diameter larger than the inner diameter of the annular projection (7) as shown in FIGS. 1 and 2, and a groove (10) formed in the axial direction of the outer wall of this cylindrical portion. Become,
Those where the groove (lO) part is a fluid passage (P),
It consists of a cylindrical portion having a smaller diameter than the inner diameter of the annular protrusion (7) as shown in FIG. An example is one in which a fluid passage (P) is formed by the outer wall of the columnar portion and the outer wall of the protrusion (11). However, here the groove (10
) is such that the bottom of the groove (10) is inside the inner wall of the annular protrusion (7) when the cylinder (T) and closure body (C) are assembled, and the depth of the protrusion ( It goes without saying that the height of the protrusion (11) is such that the top of the protrusion (11) is located outside the inner wall of the annular protrusion (7).

Note that the case where the step part (12) is formed in the locking part (3) of the cylinder (T) will be explained similarly to the case of the annular protrusion (7), so the explanation will be omitted.

Next, using FIG. 4, the use of the carrying tool will be explained.

When using this communication device, first insert the tip (13) of the syringe (S) into the tip insertion part (1) of the communication device.
) until the tip touches the seal part (2).

Then, the diameter of the chip insertion part (1) expands, and at this time, the diameter of the seal part (2), which is adjacent to the chip insertion part (1) and has the same inner diameter as that, also expands, and the seal part (2) and executives (8)
A gap (14) or fluid passageway (P) is formed between them. When fluid is injected from the syringe (S), the fluid passes through the gap (14) and passes through the fluid passage (P), that is, the hollow part between the locking part (3) and the support part (9) and the outlet part (4). If, for example, a tube communicating with the balloon of the balloon catheter is connected to the outlet side through the tube, fluid is injected into the balloon.

Note that the fluid passage (P) is formed in the groove (1) formed in the support part (9).
0) and the protrusion (11), a groove may be formed in the entire locking part (3) including the annular projection (7) or step part (12), and the outer diameter of the support part (9) The diameter is smaller than the inner diameter of the locking part (3) and larger than the inner diameter of the annular projection (7) or the stepped part (12), and a groove or a through hole is provided in the annular projection (7) or the stepped part (12). may be used, and various modifications are possible.

〔Effect of the invention〕

As is clear from the above description, the in-use communication device of the present invention has the following advantages: (1) Since the number of parts is small, it is easy to manufacture and is economical.

(2) No fluid leakage occurs when fluid is injected or discharged.

(3) After the tip of a syringe or the like is inserted into the chip insertion part, the tip will not come off naturally, so there is no need for operations such as pressing the syringe or the like against the chip insertion part.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view along the longitudinal axis passing through the groove portion of the carrying tool in use, which is composed of a combination of a cylindrical body having an annular projection and a closure body having a groove, and Fig. 2 is a cross-sectional view taken along the longitudinal axis of the closure body shown in Fig. 1. FIG. 3 is a sectional view similar to FIG. 2 of another embodiment of the closure, and FIG. 4 is a view showing the state in which the tip of the syringe is inserted into the communicating device of FIG. 1. It is. Further, FIGS. 5 and 6 are schematic diagrams showing conventional examples. [Explanation of main symbols] T two cylinders C: Closure body P: Fluid passage 1: Chip insertion part 2: Seal part
3: Locking part 4: Exit part 7: Annular projection 8: Check line 9: Support part 10: Groove 11: Projection 12: Step part 14: Gap Nissho Co., Ltd. Figure 1 Figure 5 Figure 6 Drawing procedure amendment (voluntary) Director General of the Japan Patent Office Yoshi 1) Takeshi Moon 1, Indication of the case Patent Application No. 259086 of 1988 2, Communicating device when using the name of the invention 3, Person making the amendment Relationship with the case Patent application Person (Men's Paper) 1. The scope of claims is amended as shown in the attached sheet. 2. The "Detailed Description of the Invention" column of the specification is amended as follows. 1) On page 7, lines 12-13, "vinyl monochloride" is corrected to "polyvinyl chloride". 2) On page 10, line 11, “L section (1
2) is corrected as "Danbu (not shown)". 3) On page 11, line 16, correct the column (12) shown in Figure 3 to 1 column (not shown).4) Page 12, line 7, lines 7-8, Correct “P columnar portion” in line 9 to “column portion”. 5) Correct the 1st column (12) in lines 18 and 19 of page 12 and lines 1, 4, and 5 of page 14 by 2 columns. 3. The "Brief Description of Drawings" section of the specification is amended as follows. 1) Delete “12: Multi-layered portion” on page 15, line 17 (14) and correct Figure 4 of the drawings as shown in the attached sheet. [Nurishing] (y31) 2. Claims l) A communication device consisting of a soft material cylinder with both ends open and a hard material closure inserted and supported within the cough cylinder. The cylindrical body has an opening and an outlet, and the hollow part of the cylindrical body has a tip insertion part whose diameter is tapered from the inlet to the outlet, and a tip insertion part that is tapered in diameter from the inlet to the exit. an extended seal portion formed to have an inner diameter equivalent to the inner diameter of the outlet side end of the tip insertion portion; a locking portion extended from the seal portion and directed toward the outlet;
and an outlet portion extending from the locking portion to the outlet, and the closing body includes a cylindrical trunk having an outer diameter slightly larger than the inner diameter of the sealing portion of the cylinder body, and a cylindrical trunk having a diameter smaller than the outer diameter of the trunk. A substantially cylindrical support part is engaged with the locking part, a fluid passage is formed in the locking part and/or the support part, and the trunk of the closure body and the seal part of the cylinder body are in contact with each other. A communication device in use, which is arranged so that the support part of the closure body is in contact with the locking part of the cylinder body. 2) The locking part of the cylindrical body has an annular projection protruding from the outlet end of the hollow part, and the support part of the closing body has a circular plate having an inner diameter smaller than the inner diameter of the annular projection. In addition, the outer wall of the bean has a plurality of protrusions arranged at approximately equal intervals in the axial direction, and the outer diameter of the support part at the protrusion portion is larger than the inner diameter of the annular protrusion. 2. The in-use communication device according to claim 1, wherein a lower end of the protrusion is arranged in contact with an upper end of the annular protrusion. 3) The locking part of the cylinder has an annular protrusion protruding from the outlet end of the hollow part, and the support part of the closing body is formed with an outer diameter larger than the inner diameter of the annular protrusion. 2. The in-use communication device according to claim 1, wherein a groove serving as a fluid passage is formed in the axial direction of the outer wall, and a lower end of the support portion is disposed in contact with an upper end of the annular protrusion. 4) The locking part of the cylindrical body has a stepped part formed on the outlet side end inside the inner wall of the end of the releasing locking part, and the support part of the closing body has a diameter larger than the inner diameter of the stepped part. A groove is formed on the outer diameter and serves as a fluid passage in the axial direction of the outer wall of the support part.
2. The communication device according to claim 1, wherein the end of the supporting portion is disposed in contact with the stepped portion. 5) The locking portion of the cylinder has a stepped portion formed at the outlet end on the inside of the inner wall of the end of the locking portion, and the support portion of the closing body has an outer diameter smaller than the inner diameter of the stepped portion. The outer wall of the column m has a plurality of protrusions arranged at approximately equal intervals in the axial direction, and the outer diameter of the support portion at the protrusion portion is stepped. 2. The in-use communication device according to claim 1, wherein the groove is formed to have a diameter larger than the inner diameter of the step, and the lower end of the protrusion is arranged in contact with the upper end of the stepped portion.

Claims (1)

[Scope of Claims] 1) A communication device consisting of a cylindrical body made of a soft material with both ends open and a closure body made of a hard material inserted and supported within the cylindrical body, the cylindrical body having an inlet and an outlet. The hollow part of the cylinder has a tip insertion part whose diameter is tapered from the inlet to the outlet, and an outlet side end of the tip insertion part that extends from the tip insertion part in the exit direction. a seal portion formed to have an inner diameter equivalent to the inner diameter of the portion; a locking portion extending from the seal portion toward the outlet;
and an outlet portion extending from the locking portion to the outlet, and the closing body includes a cylindrical plug portion having an outer diameter slightly larger than the inner diameter of the seal portion of the cylindrical body; It consists of a substantially cylindrical support part with a small diameter that is engaged with the locking part, a fluid passage is formed in the locking part and/or the support part, and a seal between the plug part of the closure body and the cylindrical body is formed. A communication device in use, which is arranged such that the parts are in contact with each other and the support part of the closure body is locked with the locking part of the cylindrical body. 2) The locking part of the cylinder has an annular protrusion protruding from the outlet end of the hollow part, and the support part of the closing body has a cylindrical part formed with an inner diameter smaller than the inner diameter of the annular protrusion. In addition, the outer wall of the cylindrical portion has a plurality of protrusions arranged at approximately equal intervals in the axial direction, and the outer diameter of the support portion in the protrusion portion is formed to be larger than the inner diameter of the annular protrusion. Claim 1, wherein the lower end of the protrusion is arranged in contact with the upper end of the annular projection.
Communication device when used as described. 3) The locking part of the cylinder has an annular protrusion protruding from the outlet end of the hollow part, and the support part of the closing body is formed with an outer diameter larger than the inner diameter of the annular protrusion. 2. The in-use communication device according to claim 1, wherein a groove serving as a fluid passage is formed in the axial direction of the outer wall, and a lower end of the support portion is disposed in contact with an upper end of the annular protrusion. 4) The locking portion of the cylinder has a stepped portion formed at the outlet end thereof inside the inner wall of the end of the locking portion, and the support portion of the closing body has a diameter larger than the inner diameter of the stepped portion. A groove is formed on the outer diameter and serves as a fluid passage in the axial direction of the outer wall of the support part.
2. The in-use communication device according to claim 1, wherein an end of the support portion is disposed in contact with the stepped portion. 5) The locking portion of the cylinder has a stepped portion formed at the outlet end on the inside of the inner wall of the end of the locking portion, and the support portion of the closing body has an outer diameter smaller than the inner diameter of the stepped portion. The outer wall of the columnar portion has a plurality of protrusions arranged at approximately equal intervals in the axial direction, and the outer diameter of the supporting portion in the protrusion portion is stepped. 2. The in-use communication tool according to claim 1, wherein the slit is formed to have a diameter larger than the inner diameter of the step, and the lower end of the protrusion is disposed in contact with the upper end of the step.