KR20040055440A - A detachable thermostat for medical fluid - Google Patents

Abstract

PURPOSE: An attachable and removable thermostat for sap for a medical treatment is provided to directly insert or remove a sap flowing path module through a side of a sap thermostat to leave out a rotation movement, a cover, a door and a hinge of the thermostat for an excellent durability, and to compactly manufacture the sap flowing path module to make it easy to handle and simple to carry out the sap thermostat. CONSTITUTION: The attachable and removable thermostat for sap for a medical treatment comprises a sap flowing path module on both sides being connected with a sap tube penetrated with a sap flowing path in a spiral shape formed in the inside; a sap thermostat(20) in which the sap flowing path module is inserted/removed through an insertion groove formed at one side; and a heating unit placed in the sap thermostat(20) for heating the sap flowing path module as inserted at a regular temperature.

Description

A detachable thermostat for medical fluid

The present invention relates to a removable medical fluid thermostat, and more particularly, to a removable medical fluid thermostat capable of inserting / removing the fluid flow module 50 into the fluid thermostat as in the cassette method.

In general, intravenous injection is used to provide blood to patients or to administer ringgel fluids. Ringgel sap is usually stored at low temperature to prevent decay or foreign substance formation. Blood or blood products are stored in a refrigerated state to prevent the decay of harmful organisms before blood transfusion. do.

Therefore, when the ringgel sap or blood is introduced into the human body, the temperature of the human body is usually 37 ° C., so the temperature of the ringgel sap or blood to be transfused is increased to the temperature of the human body. In this case, the heat energy required to raise the temperature of the ring gel sap or blood to the temperature of the human body is provided by the patient's metabolism.

These thermal loads are never small compared to the metabolism of the patient, so it lowers the patient's body temperature, stimulates the cooling point of the skin, and causes cooling pain, and in severe cases, affects life.

In order to solve this problem, before the ring gel sap or blood is introduced into the human body, a sap-purifier for heating up to the temperature of the human body has been developed and used.

1 is a perspective view showing a state of the conventional open and close fluid sap opener. As shown in FIG. 1, the conventional sap thermostat 10 first connects the sap tubes 16a and 16b to both ends of the empty sap flow passage 18, and then the first substrate 14 and the second substrate. After opening (12), place the fluid passage 18 in the correct position inside. Then, the first substrate 14 and the second substrate 12 are closed, locked with the lock device 19, and the power button (not shown) is pressed. Then, the ring gel sap or blood flowing from the sap tube 16a through the sap flow passage 18 to the sap tube 16b is heated to about 37 ° C. by the heating of the heater 13.

However, the conventional open / close fluid sap 10 is not simply hinged to the first substrate 14 and the second substrate 12, but the circuit of the first substrate 14 and the circuit of the second substrate 12. Is electrically connected. Typically, the first substrate 14 is provided with a power supply device, an AC / DC converter, and the like, and the second substrate 12 is provided with a switch, an LCD instrument panel, a microcomputer, a heater operating relay, and the like. Therefore, in order to electrically connect them, a flexible film line or an electric wire is provided in a hinge part.

However, since such film wires or electric wires are subjected to repeated bending fatigue loads, they are easily disconnected or short-circuited, and thus, the sap thermostat 10 is not frequently operated.

In addition to that shown in Figure 1, various types of fluid thermostats have been developed, but all have a limitation in durability as described above because the fluid passage 18 is installed inside the lid, the main body, the door, and the like.

In addition, such a conventional sap thermostat has a disadvantage in that it is inconvenient to handle or carry because of its size increase in order to promote heat transfer.

Therefore, the present invention has been made in view of the above problems, the present invention is to consider the patent application Nos. 2000-19737, 2001-85896, Utility Model Registration No. 200616 of the same applicant.

To this end, the first object of the present invention is to be configured to directly insert / remove the fluid flow channel module through the side of the fluid thermostat, by eliminating the rotational movement, lid, door, hinge, etc. of the fluid thermostat can be detachable with excellent durability It is to provide a medical fluid thermostat.

A second object of the present invention is to provide a detachable medical fluid thermostat by making the sap flow module compact and the corresponding sap thermostat also compactly manufactured, which is easy to handle and portable.

An object of the present invention as described above, in the infusion solution thermostat, the infusion solution flow path 55 is formed therein, the infusion channel module 50 is connected to the infusion tube 53 communicating with the infusion passage 55 on both sides ); An infusion solution thermostat 20 into which the infusion channel module 50 can be inserted / removed through an insertion groove 29 formed in one surface thereof; And heating means for heating the infusion channel module 50 installed and inserted into the infusion solution temperature controller 20 to a constant temperature.

In addition, the transfusion flow path module 50 includes a pair of pipe joints 32 formed at both ends of the module 50 and connectable with the transfusion pipe 53; A sap flow passage body 51 installed between the pipe joints 32 and having a sap flow passage 55 recessed in a spiral along an outer surface thereof; And a contraction tube 57 in which the fluid flow passage body 51 is press-fitted therein to complete the fluid flow passage 55.

The transfusion flow path module 50 is preferably formed to accommodate the insertion portion 35 therein by being symmetrically bent on both sides with respect to the pipe joint (32).

In addition, an insertion portion 41 that can be inserted into the insertion receiving portion 35 is further protruded in the fluid thermostat 20, and a heater 40 is further formed in the insertion portion 41. It is more preferable that it is provided.

In addition, the heating means is most preferably a pair of heaters 40 for heating both sides of the main body 51 opposite the fluid flow path.

In addition, in order to achieve the above object, the heater 40 is mounted on one surface, and the other surface is reciprocated by a predetermined distance so as to be in contact with the fluid passage main body 51, and the ceramic material on the surface Coated contact plate 44; And a plurality of springs 42 which elastically support the contact plate 44 in the direction of the fluid flow main body 51.

Here, the watering groove 31 may be further recessed in the opening region of the insertion groove 29 of the fluid thermostat 20 to accommodate the pipe fitting portion 32 of the fluid passage module 50. Do.

In addition, the elastic energy is stored by the forced insertion of the fluid channel module 50, it is preferable to further include an insertion / removal means for removing the fluid channel module 50 by the elastic energy.

In addition, the insertion / removal means, the engaging groove 12 formed in one side of the infusion fluid passage main body 51 is inserted into the infusion solution thermostat 20; A locking member (10) installed inside the infusion fluid thermostat (20), elastically entering the locking groove (12), and retired by an eject button (25); And a second contact plate 80 elastically opposed to the insertion direction of the infusion passage module 50 and capable of reciprocating in the insertion direction.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings.

1 is a perspective view showing an open state of a conventional open and close type fluid thermostat,

2 is a perspective view showing a state in which the infusion channel module 50 is detached from the removable medical fluid thermostat 20 according to the first embodiment of the present invention;

Figure 3 is a perspective view showing a state in which the infusion solution thermostat 20 and the infusion channel module 50 shown in FIG.

4 is a cross-sectional view of FIG.

Figure 5a is a cross-sectional view of the infusion state of the infusion solution thermostat 20 and the infusion passage module 50a according to a second embodiment of the present invention,

FIG. 5B is a cross-sectional view of the infusion state thermostat 20 and the infusion passage module 50a shown in FIG. 5A;

Figure 5c is a cross-sectional view of the infusion state thermostat 20 and the infusion passage module 50a according to a third embodiment of the present invention,

6 is a cross-sectional view of the infusion passage module body 51 according to the present invention,

7 is a partial cross-sectional view showing a mechanical configuration for elastically ejecting the fluid channel module in the fluid temperature controller 20 according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: sap thermostat, 12: second substrate, 13: heater,

14: first substrate, 16a, 16b: infusion tube, 18: infusion passage,

19: locking device, 20: sap thermostat, 22: string,

24: temperature control button, 25: eject button, 26: power button,

27: display window, 29: insertion groove, 30: power line,

31: water receiving groove, 32: pipe fitting, 35: insertion receiving portion,

40: heater, 41: insertion part, 42: spring,

44: contact plate, 50: fluid channel module, 51: fluid channel body,

53a, 53b: fluid tube, 55: fluid channel, 57: shrink tube,

70: locking member, 72: locking groove, 74: third spring,

76: link, 78: second spring, 80: second contact plate,

99: rechargeable battery.

Hereinafter will be described in detail with respect to the configuration of the removable medical fluid thermostat according to the present invention.

Figure 2 is a perspective view showing a state in which the fluid flow channel module 50 is detached from the removable medical fluid thermostat 20 according to the first embodiment of the present invention, Figure 3 is a fluid warmer 20 shown in FIG. It is a perspective view showing the state in which the infusion channel module 50 is coupled.

As shown in Figures 2 and 3, the present invention is largely composed of the fluid channel module 50 and the fluid temperature regulator 20. The fluid flow channel module 50 is a member that performs heat exchange while fluid or blood flows through it, and detailed internal configuration thereof will be described with reference to FIG. 6.

Sap flow channel module 50 is generally rectangular parallelepiped, the upper surface and the lower surface, one side is continuously opened to form the insertion receiving portion 35, the upper portion of the pipe joint 32 is connected to the infusion tube 53a The infusion pipe 53b is connected to the pipe joint 32 of the lower surface. This fluid flow module 50 is a disposable member that is discarded after one use.

The sap thermostat 20 has a slightly larger rectangular parallelepiped shape than the sap flow channel module 50, and is formed such that an insertion groove 29 is formed at one side of the narrow surface so that the sap flow channel module 50 can be inserted / removed. A pair of irrigation grooves 31 are recessed in the upper side and the lower side of the opening of the insertion groove 29 to accommodate the pipe joint 32.

The exterior of the infusion thermostat 20 is provided with a string 22 for hanging or carrying, and a temperature control button 24 for setting the temperature digitally. In addition, one side of the button 24 is provided with an eject button 25 for ejecting the inserted fluid channel module 50, a power button 26 for supplying or blocking power to one side is provided have.

In addition, a power supply line 30 is provided to supply electric power to the sap thermostat 20. However, when the power line 30 is omitted, a battery accommodating part may be provided inside to increase portability.

As shown in FIG. 3, the fluid flow channel module 50 may be completely inserted into the fluid temperature controller 20.

4 is a cross-sectional view of FIG. 3 in which the infusion channel module 50 is inserted into the infusion solution thermostat 20. As shown in FIG. 4, the insertion part 41 of the infusion solution thermostat 20 is tightly inserted into the insertion receiving part 35 of the infusion flow module 50.

The pair of heaters 40 are in close contact with both ends of the fluid flow channel module 50, and one heater 40 is provided in the insertion portion 41.

The contact plate 44 serves to increase the efficiency of heat transfer by preventing the air layer between the fluid flow channel module 50 and the fluid temperature regulator 20. To this end, a pair of contact plates 44 are provided in the infusion solution thermostat 20, the heater 40 is attached to one surface of each contact plate 44, the other surface is in close contact with the fluid flow channel module 50. . In addition, in order to provide a structural clearance at the time of insertion / removal (eject) of the fluid flow channel module 50, each contact plate 44 is allowed to reciprocate by a predetermined distance in one direction (vertical direction with reference to FIG. 4). It is configured and installed.

The plurality of springs 42 elastically support the contact plate 44, so that the contact plate 44 can always be in close contact with the fluid flow module 50.

FIG. 5A is a cross-sectional view of the infusion state thermostat 20 and the infusion passage module 50a according to the second embodiment of the present invention, and FIG. 5B illustrates the infusion solution thermostat 20 and the infusion passage module shown in FIG. 5A. It is sectional drawing of 50a) separated. The difference in construction between the second embodiment and the first embodiment shown in FIGS. 5A and 5B is that the insertion portion 41 of the infusion thermostat 20 is omitted, and the insertion receiving portion 35 of the infusion passage module 50. Is filled.

That is, the heater 40 in the insertion part 41 is also omitted by the omission of the insertion part 41, and the flow path inside the infusion channel module 50 also has a simple spiral shape.

FIG. 5C is a cross-sectional view of the transfusion solution thermostat 20 and the transfusion flow path module 50a according to the third embodiment of the present invention. As shown in FIG. 5C, a rechargeable battery 99 is incorporated, and the cord wire 30 is omitted.

6 is a cross-sectional view of the fluid passage module body 51 according to the present invention. As shown in FIG. 6, the fluid flow passage 55 is recessed along the spiral direction on the outer surface of the fluid flow passage main body 51, which is a synthetic resin material. In addition, the shrink tube 57 surrounds the outer surface of the fluid flow passage body 51 and contracts by heating to completely form the fluid flow passage 55. Therefore, the sap introduced into the pipe part 32 flows along the sap flow passage 55 without leaking, and then flows out to the lower pipe part 32.

7 is a partial cross-sectional view showing a mechanical configuration for elastically ejecting the fluid channel module in the fluid temperature controller 20 according to the present invention. As shown in FIG. 7, a locking groove 12 having a predetermined depth is recessed at one end of the infusion channel module 50a.

One end of the locking member 70 has a wedge shape, and the other end thereof is connected to the link 76, and the hook member 70 is inserted into the locking groove 12 so as to be caught. And, the third spring (74) to always protrude the locking member (70). The link 76 has a structure such as a seesaw to convert the pressing operation of the eject button 25 into the retracting operation of the locking member 70.

The second contact plate 80 is a member in close contact with the side surface of the infusion channel module 50a, and is configured to be reciprocated by a predetermined distance in the insertion / removal direction of the infusion channel module 50a. In addition, the second spring 78 serves to elastically push the second contact plate 80.

Hereinafter, with reference to the accompanying drawings for the operation method of the removable medical fluid thermostat according to the present invention having the configuration as described above will be described in detail.

First, a method of inserting the infusion fluid module 50 into the infusion solution temperature controller 20 will be described.

The infusion tube 53a is connected to the ring gel or the blood bag and the fluid passage module 50 is inserted into the insertion groove 29 to the end. Then the sap flow channel module 50 enters while the contact plate 44 opens to both sides, and finally, the second contact plate 80 is pushed and proceeds to catch the locking member 70 in the locking groove 72 while the sap flow channel flows. The position of the module 50 is fixed.

After supplying power to the power button 26, while pressing the temperature control button 24 while watching the display window 27 to set the desired temperature (for example, 37 ℃). Then, while the heater 40 is heated, the sap flowing slowly down the spiral sap flow passage 55 is heated to a predetermined temperature and administered to the human body.

In order to remove the fluid flow channel module 50, press the eject button 25 to retract the locking member 70, and the fluid flow channel module 50 is fully inserted by the restoring force of the compressed second spring 78. Allow 10 to 30% of the length to be removed. Then, the user pulls out the sap flow channel module 50 by hand to completely separate.

The heater 40 of the present invention may use a heater used in a typical sap constant temperature, or may use a PTC heating element whose maximum heat generation temperature is limited to 42 ° C. In addition, when the flow rate of the sap is fast or the temperature of the sap is low contact plate made of aluminum may fall below 30 ℃. In this case, additional auxiliary heaters may be installed to minimize the temperature deviation when the initial operation or the external temperature is cold.

The contact plate 44 of the present invention is made of a high thermal conductivity metal, such as aluminum, and is configured to radiate far-infrared radiation upon heating by ceramic coating the surface of the contact plate 44 to promote heating.

As described above, according to the present invention, the detachable medical fluid thermostat is configured to directly insert / remove the fluid flow channel module through the side of the fluid thermostat, thereby eliminating the rotational movement, lid, and door hinge of the fluid thermostat. It is durable.

In addition, by making the infusion channel module compact and the corresponding fluid thermostat is also made compact, there is an effect that can be easily handled and portable.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, various other modifications and variations may be made without departing from the spirit and scope of the invention. It is therefore contemplated that the appended claims will cover such modifications and variations as fall within the true scope of the invention.

Claims (9)

In sap constant temperature, Sap flow channel module 50 is formed therein, the fluid flow channel module 50 is connected to the infusion tube 53 communicating with the fluid flow path 55 on both sides; An infusion solution thermostat 20 into which the infusion channel module 50 can be inserted / removed through an insertion groove 29 formed in one surface thereof; And Detachable medical fluid thermostat comprising a; heating means for heating the infusion fluid module 50 is inserted into the infusion solution temperature controller 20 at a constant temperature. According to claim 1, The fluid channel module 50, A pair of pipe joints 32 formed at both ends of the module 50 and connectable with the fluid tube 53; A sap flow passage body 51 installed between the pipe joints 32 and having a sap flow passage 55 recessed in a spiral along an outer surface thereof; And Detachable medical fluid thermostat comprising a; a contraction tube (57) for the fluid passage main body 51 is pressed into the fluid passage (55). According to claim 2, The fluid channel module 50 is detachable medical fluid, characterized in that the insertion receiving part 35 is formed therein by being symmetrically bent on both sides with respect to the pipe joint (32). A thermostat. The method of claim 3, wherein the insertion portion 41 which can be inserted into the insertion receiving portion 35 is further protruded in the interior of the fluid thermostat 20, Detachable medical fluid thermostat, characterized in that the heater 40 is further installed inside the insertion portion (41). 2. The detachable medical fluid thermostat of claim 1, wherein said heating means is a pair of heaters (40) for heating opposite sides of the fluid passage body (51). The method of claim 5, wherein The heater 40 is mounted on one surface, and the other surface is reciprocated by a predetermined distance to be in contact with the fluid passage body 51, and a contact plate 44 coated with a ceramic material on a surface thereof; And Removable medical fluid thermostat further comprises; a plurality of springs (42) for elastically supporting the contact plate 44 in the direction of the fluid flow passage main body (51). According to claim 1, wherein the water receiving groove 31 is formed in the opening region of the insertion groove 29 of the fluid reservoir 20 in order to accommodate the pipe joint 32 of the fluid flow channel module 50 Detachable medical fluid thermostat characterized in that it is. The method of claim 1, wherein the elastic energy is stored by the forced insertion of the fluid channel module 50, characterized in that it further comprises an insertion / removal means for removing the fluid channel module 50 by the elastic energy. Removable medical fluid thermostat to say. The method of claim 8, wherein the insertion / removal means, A locking groove 12 formed in one side of the infusion fluid main body 51 to be inserted into the infusion solution thermostat 20; A locking member (10) installed inside the infusion fluid thermostat (20), elastically entering the locking groove (12), and retired by an eject button (25); And And a second contact plate (80) elastically opposed to the insertion direction of the infusion passage module (50) and reciprocating in the insertion direction.