JP3058118U - Medical infusion device with automatic sealing device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a medical infusion device with an automatic sealing device capable of improving the safety of an infusion treatment and reducing the number of times a nurse goes to check the state of a hospital room. SOLUTION: A plug-type connector 20, a drip relay pipe 30, and a sealing ball 40 are provided, and a hollow pointed needle 21 of the connector 20 is inserted into a cap of a drip bottle,
The drip solution in the bottle is caused to flow into the relay tube fitted into the connector 20 via the hollow needle 21, and the sealing ball 40 housed in the relay tube 30 is floated on the drip solution, and the relay tube 3
From 0, the infusion is administered to the patient's blood vessel via the infusion tube, the infusion in the bottle is consumed, and when the infusion is almost completely eliminated in the relay tube 30, the sealing ball 40 becomes tapered of the relay tube 30. Upon contact with the attached bottom, it falls into the hemispherical recess 321 and the sealing ball 40 automatically prevents air in the relay tube 30 from entering the patient's blood vessel from the infusion tube.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention relates to a medical infusion device with an automatic sealing device.

[0002]

[Prior art]

 The conventional medical infusion apparatus with control means shown in FIG. 1 has a relay tube 10 for an infusion liquid, and this relay tube 10 is tightly fitted to a connector 20 also called a cap base. The relay pipe 10 has a tapered bottom portion 11, a pipe connection end portion 12 is continuous with the bottom portion 11, and an injection pipe 60 is fitted into the pipe connection end portion 12. The injection tube 60 is controlled by a manual adjustment device 70. The hollow pointed needle 21 provided in the connector 20 takes in the infusion liquid by half the amount of the relay pipe 10 when the drip liquid in the drip bottle 80 flows into the relay pipe 10. The drip solution in the relay tube 10 is continuously injected into the blood vessel of the patient via the injection tube 60 and a needle (not shown) connected thereto. However, the conventional medical infusion device as described above has the following problems when actually used. The hospital nurse must repeatedly visit the patient's room undergoing infusion therapy many times to constantly monitor the amount of drip remaining in the infusion bottle 80, If neglected, the air in the infusion device can easily be infused into the patient's blood vessels, causing a fatal accident such as heart failure.

[0003]

[Problems to be solved by the invention]

 The present invention is intended to solve the above-mentioned problem, and when the drip liquid in the drip is consumed and disappears from the drip bottle, it is applied to the patient's blood vessel at the end of the drip injection. The main purpose is to provide a medical infusion device with a sealing device that can automatically close the opening in the relay tube to prevent air from entering. In addition, the idea was to reduce the number of times nurses and other persons had to go to the sickroom to check the drip solution to minimize the burden and burden on nurses. It is another object of the present invention to provide a medical infusion device with an automatic sealing device that can automatically seal an opening of a tube.

[0004]

[Means for Solving the Problems]

 A medical infusion device with an automatic sealing device according to the invention of claim 1 includes a plug-in type connector, a relay tube for infusion liquid, and a floatable sealing ball, and is hollow at the upper center of the connector. A pointed needle is provided, a small-diameter pipe connecting portion for connecting to an injection pipe is formed at the bottom of the relay pipe, the sealing ball is housed in the relay pipe, and the connector is connected to the relay pipe. And a hemispherical recess is formed in the bottom of the relay tube, the recess is communicated with the outlet passage, and the outlet passage is connected to the pipe connecting portion. Is inserted into a drip bottle containing a medical drip, the drip is poured into the relay tube from the drip bottle, and a sealing ball is floated on the drip, and the drip in the drip bottle is dropped. The liquid is injected into the patient's vein via the infusion tube, and is injected into the drip bottle and relay tube. When the liquid drops are exhausted, the sealing ball enters into the hemispherical cavity to block the outlet passage connected to the injection pipe, and the air in the drip bottle and the relay pipe undergoes drip treatment. It is characterized in that it does not get into the blood vessels of patients who have it.

According to a second aspect of the present invention, in the medical infusion device with the automatic sealing device according to the first aspect, a partition plate is formed in a bottom portion of the relay tube for the drip liquid, and a taper is formed at a center portion of the partition plate. A vertical bar is projected below the sealing ball, a flexible horizontal bar is integrally connected to a lower end of the vertical bar, the horizontal bar is passed through the through hole, and an infusion is performed. The infusion liquid flows from the bottle into the relay pipe, the sealing ball floats on the partition plate, passes through the through-hole, and the infusion liquid is injected into the blood vessel of the patient via the injection pipe. When the drip in the vial and the relay tube runs out, the sealing ball moves into sealing engagement with the tapered through-hole in the partition plate, preventing air from entering the blood vessel of the patient undergoing infusion therapy. It is characterized in that.

[0006]

[Embodiment of the invention]

 A medical infusion device according to a first embodiment of the present invention will be described with reference to FIGS. 2 to 4. In each of FIGS. 2 to 4, reference numeral 20 denotes a plug-in type connector 20, 30 denotes a drip relay tube, 40 denotes a floatable sealing ball, and 60 denotes a drip injection tube.

The connector 20 is provided with a hollow, pointed needle 21 protruding from the center of the upper part. The relay pipe 30 for the drip solution has a small diameter for connecting to the injection pipe 60. A comb tube connection 31 is formed at the bottom.

The relay pipe 30 has a tapered shape in which most of the diameter of the relay pipe 30 is reduced downward, and forms a small-diameter outlet passage 33 communicating with a lower pipe connecting portion 31. There is a recess 321 which is connected to the tapered bottom 32. Then, the floatable sealing ball 40 is put into the relay pipe 30, and as shown in FIG. 3, the connector 20 is pushed into the open upper part of the relay pipe 30 and snap-fitted.

As shown in FIGS. 4A and 4B, when the drip liquid in the relay tube 30 is almost exhausted at the final part of the drip treatment, the floatable sealing ball 40 is hemispherical due to its own weight. By falling into the recess 312, the sealing ball 40 closes the outlet passage 33, preventing air from flowing through the outlet passage 33.

In actual use, first, the hollow pointed needle 21 of the pierceable connector 20 is inserted into the cap of the drip bottle as in the case of the conventional connector shown in FIG. Pierce. As a result, the drip liquid in the bottle flows into the drip relay pipe 30 through the hollow pointed needle 21 of the connector 20, and the drip liquid for the drip in the same manner as the conventional manual adjustment device 70 shown in FIG. The control is performed so that the drip liquid coming out of the bottle 80 accumulates in half of the vertical direction of the relay tube 30. After that, the infusion liquid is administered to the blood vessel of the patient via an infusion tube 60 similar to the conventional one shown in FIG. At this time, the floatable sealing ball 40 is floating on the drip solution that has entered up to half of the relay tube 30 (see FIG. 4A).

When the drip liquid in the drip bottle has run out and the drip liquid in the relay tube 30 has almost disappeared, the sealing ball 40 is moved with the auxiliary action of the remaining drip solution. It automatically prevents air within 30 from entering the patient's blood vessels via infusion tube 60.

A medical infusion device according to a second embodiment of the present invention will be described with reference to FIGS. 5 to 7. FIG. In each of FIGS. 5 to 7, reference numeral 20 denotes a plug-in type connector, reference numeral 30 denotes a relay for a drip solution, and reference numeral 50 denotes a floating sealing means having a rod-shaped end.

The plug-in connector 20 has a hollow, pointed needle 21 protruding from the center of the upper part thereof, and the relay pipe 30 for the drip liquid has a diameter for connecting to the infusion pipe for the drip liquid. Is formed at the bottom of the pipe connecting portion 31.

A connecting portion 31 having a small diameter is connected to a bottom portion of the relay tube 30, and a drip tube 60 is attached to the connecting portion 31 when actually used. Further, a partition plate 34 having a through hole 341 is formed near the bottom of the relay tube 30, and the through hole 341 is tapered so that the diameter of the lower portion becomes smaller.

The sealing means 50 is formed by projecting a vertical bar 53 below the center of the floating sealing ball 51, and integrally forming a flexible horizontal bar 52 below the vertical bar 53. , In an inverted T-shape. The lower part of the sealing ball 51 is formed with a tapered contact surface 511 having a small diameter at the bottom.

The sealing means 50 is put into the relay tube 30 for the drip liquid, and the flexible horizontal bar 52 is pushed in so as to pass through the tapered through hole 341 of the partition plate 34. Then, as shown in FIG. 6, the connector 20 is snapped into the upper opening of the relay tube 30 in a snap-fit manner.

As shown in FIGS. 7A and 7B, when actually used, the pointed needle 21 of the pluggable connector 20 is inserted into the cap of the drip bottle 80 as shown in FIG. When pierced, the drip liquid in the drip bottle flows into the relay tube 30 via the hollow pointed needle 21 of the connector 20. The infusion tube 60 is provided with a manual adjusting device 70 as shown in FIG. 1 so that the infusion liquid flowing from the infusion bottle reaches the upper and lower halves in the relay tube 30. The fluid is controlled, and the infusion is infused into the patient's blood vessel via the infusion tube 60.

At this time, the sealing ball 51 of the floatable sealing means 50 rises above the liquid in the relay tube 30, and the horizontal bar 52 hits the peripheral edge of the tapered hole 341 of the partition plate 34. And the floating of the sealing means 50 is controlled.

When the liquid in the drip bottle 80 has run out and the tapered contact surface 511 of the floatable sealing ball 51 comes into contact with the peripheral surface of the tapered hole 341 of the partition plate 34, the relay pipe The remaining drip solution 30 is sealed off by the sealing ball 51, so that when the drip solution in the relay tube 30 is almost exhausted, the air in the drip bottle enters the blood vessel of the patient via the infusion tube 60. Can not be.

[0020]

[Effect of the invention]

 As described above, the medical infusion device with an automatic sealing device according to the invention of claims 1 and 2 relays the infusion solution when the infusion solution in the infusion bottle is consumed when actually used. The automatic closure of the duct passage improves the safety of medical drip site procedures and reduces the need for hospital nurses to visit hospital rooms. is there.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a conventional medical infusion device with control means.

FIG. 2 is a longitudinal sectional view showing components of the medical infusion device with the automatic sealing device according to the first embodiment of the present invention.

FIG. 3 is a longitudinal sectional view of the medical infusion device shown in FIG. 2 in an assembled state.

4A is a longitudinal sectional view of the medical infusion device shown in FIG. 2 in an operating state, and FIG. 4B is a longitudinal sectional view of the medical infusion device shown in FIG.

FIG. 5A is a longitudinal sectional view showing components of a medical infusion device according to a second embodiment of the present invention, and FIG. 5B is a perspective view of a sealing ball of the medical infusion device.

6 is a longitudinal sectional view of the medical infusion device shown in FIG. 5 in an assembled state.

FIG. 7A is a longitudinal sectional view of the medical infusion device shown in FIG. 6 in an operating state.

[Explanation of symbols]

 REFERENCE SIGNS LIST 20 plug-in connector 21 hollow pointed needle 30 relay pipe for drip liquid 31 pipe connection part 32 tapered bottom part 321 hemispherical recess 33 outlet passage 34 partition plate 341 through hole 40 floatable sealing ball 50 sealing means 51 Sealing hole 511 Tapered contact surface 52 Flexible horizontal bar 53 Vertical bar 60 Injection tube 70 Manual adjustment device 80 Infusion bottle

Claims (2)

[Utility model registration claims] 1. A plug-in connector, a drip solution relay tube, and a floatable sealing ball, wherein a hollow pointed needle is provided at the upper center of the connector, and a bottom end of the relay tube is provided. A small diameter pipe connecting portion for connecting to the injection pipe is formed, the sealing ball is housed in the relay pipe, the connector is snap-fitted into the upper opening of the relay pipe, and a hemispherical shape is formed at the bottom of the relay pipe. Forming an indentation, communicating the indentation with the outlet passage, connecting the outlet passage to the tube connection, piercing the pointed needle into an infusion bottle containing medical infusion fluid, and The infusion solution is allowed to flow from the bottle into the relay tube, the sealing ball is floated on the infusion solution, the infusion solution in the infusion bottle is injected into the blood vessel of the patient via the injection tube, and the infusion bottle and the relay tube When the drip liquid disappears, the sealing ball is in the hemispherical recess. Automatically injecting and closing the outlet passage connected to the infusion tube so that air in the infusion bottle and in the relay tube does not enter the blood vessels of the patient undergoing infusion therapy. Medical infusion device with sealing device. 2. A partition plate is formed in the bottom of the relay tube for drip liquid, a tapered through hole is formed in the center of the partition plate, and a vertical bar is projected below the sealing ball. A flexible horizontal bar is integrally connected to the lower end of the rod, the horizontal bar is passed through the through-hole, the drip liquid is allowed to flow from the drip bottle into the relay tube, and the sealing ball is placed on the partition plate. The infusion liquid is injected into the blood vessel of the patient via the infusion tube through the through hole, and when the infusion liquid in the infusion bottle and the relay tube runs out, the sealing ball is inserted into the tapered through hole of the partition plate. The medical infusion device with a self-sealing device according to claim 1, wherein the medical infusion device is moved into a sealing engagement so as to prevent air from entering a blood vessel of a patient undergoing infusion treatment.