KR20220157679A - Pneumatic beat type pump with one-touch coupling - Google Patents

Abstract

The present invention relates to a pneumatic pulsatile pump in which a pump unit and a power unit providing power can be coupled in a one-touch method. More specifically, the present invention relates to a pneumatic pulsatile pump capable of one-touch coupling, which can quickly and accurately connect a pump unit and a power unit by simply coupling the same through a one-touch method without the need to separately connect a pneumatic pipe to each component of the pump unit, thereby easily circulating blood.

Description

Pneumatic pulsatile pump with one-touch coupling {PNEUMATIC BEAT TYPE PUMP WITH ONE-TOUCH COUPLING}

The present invention relates to a pneumatic pulsatile pump in which a pump unit and a power unit providing power can be coupled in a one-touch manner, and more particularly, a pneumatic pipe can be separately coupled to each component of the pump unit because the pump unit and the power unit can be quickly and accurately connected. It relates to a pneumatic pulsatile pump capable of one-touch coupling that can easily circulate blood by simply coupling it in a one-touch method without the need to do so.

In general, a pneumatic pulsatile pump works by receiving external power to contract and relax a blood bag inside the pump to circulate blood in one direction.

In order to deliver an external power source to such a pneumatic pulsatile pump, a structure in which the power source is transmitted through a pneumatic pipe directly connecting the pump unit and the driving unit is used.

In order to operate the conventional pneumatic pulsatile pump, a pneumatic pipe connected to the configuration was used to transfer power to the inlet, the blood bag, and the outlet, respectively.

In the case of connecting the pump unit and the drive unit in this way, three pneumatic pipes per pump and six pneumatic pipes in the case of a dual type using two pumps are required to operate the pneumatic pulsatile pump.

On the other hand, in the case of passively connecting the pneumatic pipe that provides power to the pump part, time and effort are consumed, and there is a concern that the pneumatic pipe to be connected and the pump part do not match in configuration or that the pneumatic pipe is twisted during the connection process. exists.

Republic of Korea Patent Registration No. 10-1840857 "Blood Pump"

The present invention is intended to solve the above problems, and can quickly and accurately connect a pump unit and a power unit in a one-touch manner without the need to separately connect a pneumatic pipe to drive a pump unit including a blood bag and the like, and easily circulate blood. Its purpose is to provide a pneumatic pulsatile pump capable of one-touch coupling.

In addition, a single or dual type pulsatile pump can be used by adjusting the number of pump frames connected to the drive frame and selectively combining them, and at the same time as the drive frame and pump frame are combined, the built-in pipe and pneumatic pipe An object of the present invention is to provide a pneumatic pulsatile pump capable of one-touch coupling that can be connected to each other and easily provide power (pneumatic pressure) to the housing side.

In addition, an object of the present invention is to provide a pneumatic pulsatile pump that can prevent a pump unit coupled to a driving unit from being easily separated from the driving unit by an external force, and which can be easily coupled to the driving unit in a one-touch fashion.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

In the pneumatic pulsatile pump capable of one-touch coupling of the drive unit and the pump unit according to the present invention to solve the above problems,

The drive unit has an open upper surface, a frame inlet groove is formed on the inside, a drive pipe connected to an external power supply source protrudes on the front side, and one end is connected to the drive pipe to transmit power to the pump unit. A driving frame with a built-in pipe, the pump unit having an inlet pipe and a discharge pipe protruding therein, a housing having a built-in blood bag and both ends connected to the inlet pipe and the discharge pipe, respectively; It is connected to the housing and includes a pump frame having a built-in pneumatic pipe communicating with the outside of the bottom surface, and connected to the other end of the built-in pipe on the inner surface of the frame inlet groove, and a coupling pipe inserted into the other end of the pneumatic pipe. ; And a first fastener that protrudes in a hexahedral shape and has a fastening pin protruding to one side, and a fastener inlet groove into which the first fastener is inserted is recessed on the lower surface of the pump frame, and the fastener inlet is formed. Inside the groove, a second fastener having a coupling groove into which the coupling pin is inserted when the first fastener is drawn in is embedded, and when the pump frame is drawn into the frame inlet groove and engaged, the coupling pin is fastened. It is inserted into the groove and fastened.

In addition, the fastening groove may include a first region recessed upward from the lower surface of the second fastener; a second region connected to an upper end of the first region, descending toward the center of the second fastener, and extending inwardly; a third region connected to the extended end of the second region and extending concavely upward in a direction opposite to the first region; And a fourth area connected to the extended end of the third area, extending downward and communicating with the lower end of the first area, wherein the fastening pin when the pump frame is inserted into the frame inlet groove is locked by moving along the first area and the second area, and when the pump frame is separated to the outside of the frame inlet groove, the fastening pin moves along the third area and the fourth area so that the fastening pin is It is separated to the outside of the fastening groove.

At this time, the degree of depression of the first region gradually decreases as the depression extends upward to form an inner lower surface slope, and the degree of depression of the second region increases than that of the first region so that there is a step difference between the first region and the second region. Is formed, and the third region has an increased degree of depression than the second region, so that a step is formed between the second region and the third region, and the fourth region gradually decreases as the depression extends downward. , The upper end connected to the third region has an increased degree of depression than the third region, so that a step is formed between the third region and the fourth region, and the fastening pin is drawn into the first region to the second region. It moves, but does not go backward due to the step difference between the first area and the second area, does not go backward toward the second area when provided in the third area, and moves from the third area to the fourth area, but the third area It is characterized in that it moves only in one direction toward the inside of the fastening groove without retrogression due to a step difference between the region and the fourth region.

In addition, at the bottom of the pneumatic pipe, an inlet is formed in the shape of the drive pipe and is recessed upward from the lower surface of the pump frame, and a plurality of O-rings are formed on the inside. The coupling pipe is inserted into the inlet and fitted. And, the O-ring closes the gap between the coupling pipe and the inside of the inlet.

In addition, a fitting is formed on the inner surface of the frame inlet groove, and the fitting is provided at both ends of the frame inlet groove, respectively, and side fittings provided on the front and rear sides; And center fittings respectively provided on the front and rear sides of the frame inlet groove at the center of the space spaced apart from the side fittings, wherein the pump frame is formed on both sides of the pump frame, respectively, on the front side and the rear side. A fitting groove recessed on the side is formed, and when the pump frame is inserted into the frame inlet groove, the side fitting hole is inserted into the fitting groove formed on one side of the pump frame and is fitted, and is fitted to the other side of the pump frame. The center fitting hole is inserted into the fitting groove formed and fitted.

In addition, the housing may include a central housing into which the blood bag is built; an inlet housing having one end connected to the inlet pipe and the other end connected to the central housing; and a discharge housing having one end connected to the central housing and the other end connected to the discharge pipe, wherein the pneumatic pipe is connected to the central housing, the inflow housing, and the discharge housing, respectively, and depressurizes or reduces the inside of the housing. The blood is introduced into the inlet pipe by being pressurized, and the blood is circulated in one direction through the housing and discharged into the outlet pipe.

At this time, the pneumatic pipe is composed of a number corresponding to the central housing, the inlet housing, and the discharge housing and connected to each other, and the drive pipe, the built-in pipe, and the coupling pipe are integrally formed, and the drive pipe and the built-in pipe are integrally formed. Pipes The coupling pipe is composed of a number corresponding to the pneumatic pipe and is individually connected.

In addition, a plurality of fixing grooves are recessed downward on the inner surface of the frame inlet groove, and a lower surface of the pump frame protrudes downward to correspond to the recessed shape of the fixing groove at a position corresponding to the fixing groove. A fixing protrusion is formed, and when the pump frame is inserted into the frame inlet groove, the fixing protrusion is inserted into the fixing groove to be fitted and fixed.

As described above, the present invention has an effect of being able to quickly and accurately connect the pump unit and the power unit in a one-touch manner without separately connecting a pneumatic pipe to drive the pump unit including the blood bag and the like, and easily circulating the blood.

In addition, a single or dual type pulsatile pump can be used by adjusting the number of pump frames connected to the drive frame and selectively combining them, and at the same time as the drive frame and pump frame are combined, the built-in pipe and pneumatic pipe It has an effect of being connected to each other and easily providing power (pneumatic pressure) to the housing side.

In addition, it is possible to prevent the pump unit coupled to the driving unit from being easily separated from the driving unit by an external force, and the pump unit has an effect of being easily coupled to the driving unit in a one-touch format.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 shows a pneumatic pulsatile pump capable of one-touch coupling according to the present invention.
2 shows a drive unit according to the present invention.
3 is a plan view showing a driving unit according to the present invention.
FIG. 3A is an AA cutaway view of FIG. 3 .
FIG. 3B is a sectional view of BB of FIG. 3 .
4 shows a pump unit according to the present invention.
Figure 5 shows the configuration of the pump unit excluding the pump frame according to the present invention.
6 shows a cross-sectional view of a pump unit according to the present invention.
7 is an exploded perspective view showing a first fastener and a second fastener according to the present invention;
7a to 7d show an example in which a fastening protrusion and a second fastener according to the present invention are fastened.
8 and 9 are exploded perspective views of the drive unit and the pump unit according to the present invention.
10 shows that the pump unit according to the present invention is provided on the driving unit.
11 shows an example in which a pump unit according to the present invention is coupled to a driving unit.
12 shows an example in which the pump unit according to the present invention is separated from the driving unit.

Since the present invention can make various changes and have various embodiments, specific embodiments are illustrated in the drawings and described in detail.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numerals have been used for like elements throughout the description of each figure.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the gist of the present invention.

1 shows a pneumatic pulsatile pump capable of one-touch coupling according to the present invention, FIG. 2 shows a drive unit according to the present invention, FIG. 3 shows a drive unit according to the present invention in a plan view, and FIG. A-A cross-sectional view is shown, Figure 3b is a B-B cross-sectional view of Figure 3, Figure 4 shows the pump unit according to the present invention, Figure 5 shows the configuration of the pump unit according to the present invention excluding the pump frame , Figure 6 shows a cut-away view of the pump unit according to the present invention, Figure 7 is an exploded perspective view showing the first fastener and the second fastener according to the present invention, Figures 7a to 7d are the fastening protrusion and the second fastener according to the present invention 2 shows an example in which fasteners are fastened, FIGS. 8 and 9 are exploded perspective views of the drive unit and the pump unit according to the present invention, and FIG. 10 shows that the pump unit according to the present invention is provided on the drive unit, FIG. 11 shows an example in which the pump unit according to the present invention is coupled to the driving unit, and FIG. 12 shows an example in which the pump unit according to the present invention is separated from the driving unit.

The present invention relates to a pneumatic pulsatile pump in which a pump unit and a power unit providing power can be coupled in a one-touch manner. Such a pneumatic pulsatile pump (1) is composed of a driving unit (100) and a pump unit (200).

The drive unit 100 is connected to an external motor to provide power to the pump unit 200. The pump unit 200 is provided inside and is coupled to the drive unit 100 at the same time as the housing 210 in the pump unit 200. ) to provide pneumatic pressure.

The driving unit 100 includes a driving frame 101 having a hexahedral shape with front and rear surfaces provided with a driving pipe 110 and an open upper surface, and the lower end of the pump unit 200 is inside the driving frame 101. A frame inlet groove (101a) that can be pulled in and fixed is provided on the inside.

The pump unit 200 can be easily attached to and detached from the driving unit 100 by simply inserting the pump unit 200 into the frame inlet groove 101a.

Fitting holes 102 into which the fitting grooves 204 of the pump unit 200 can be fitted are provided on the front and rear sides of the frame inlet groove 101a, respectively.

Fitting holes 102 are formed at the center of the front and rear ends of the drive frame 101 in which the fitting grooves 204 are formed, respectively, and the center fitting holes 102a protruding upward to correspond to the shape of the fitting grooves 204 and the driving frame. It consists of a side fitting hole (102b) protruding to correspond to the shape of the fitting groove 204 on the inside of both ends of (101).

The center fitting hole (102a) and the side fitting hole (102b) are coupled with the fitting grooves 204 respectively recessed on both sides of the pump frame 201 in the front and rear direction. That is, as shown in FIG. 1, a pair of pump units 200 are coupled to one driving unit 100, and the pump frame 201 of the pump unit 200 is provided on one inner side and the other inner side of the driving frame 101, respectively. In one pump frame 201, fitting grooves 204 are formed on both sides of the front and rear directions, respectively, and a total of four fitting grooves 204 are recessed in one pump frame 201, and such a pump frame 201 ) Is drawn into the fitting groove 204 and when combined, a pair of fitting grooves 204 formed on one side of the pump frame 201 as a center are coupled with a pair of side fitting holes 102b, and the pump frame ( 201), the other pair of fitting grooves 204 formed on the other side are coupled with the pair of central fitting holes 102a.

In addition, on the inner surface of the drive frame 101, that is, on the inner lower surface of the fitting groove 204, a fixing groove 103 into which a fixing protrusion 206 protruding from the lower surface of the pump frame 201 can be inserted is formed.

Therefore, when the lower end of the pump frame 201 is inserted into the fitting groove 204 of the drive frame 101, the fixing protrusion 206 of the pump frame 201 is inserted into the fixing groove 103 and fixed through fitting. .

A drive pipe 110 coupled to an external power source (such as a pump or motor) is formed on the front of the drive frame 101 .

The drive pipe 110 is capable of providing air pressure for each zone of the housing 210 built into the pair of pump frames 201, and the built-in pipe 110a built into and provided in the drive frame 101 and It is connected to the pipe 120 and does not need to be separately connected to the power supply source for each section of the housing 210. It is connected to the driving pipe 110 and at the same time, the housing 210 within the pump unit 200 and the power supply source to be connected for each section ) to be connected accordingly.

The driving pipe 110 protrudes outward from the front surface of the driving frame 101 and is connected to the built-in pipe 110a embedded in the driving frame 101 .

In addition, a coupling pipe 120 protruding from the inner surface of the frame inlet groove 101a is inserted into the lower surface of the pump frame 201 to provide power.

The coupling pipe 120 is connected to the built-in pipe 110a embedded in the driving frame 101 and protrudes from the inside of the frame inlet groove 101a. As the pump frame 201 is inserted into the end of the pipe 220, the pump frame 201 is inserted into the frame inlet groove 101a, and the coupling pipe 120 is connected to the pneumatic pipe 220 to provide air pressure to the housing 210 side. there will be

Therefore, the driving pipe 110, the built-in pipe 110a, and the coupling pipe 120 are connected to each other like a single pipe as shown in FIG. At the same time, the power transmitted to the pump unit 200 can be immediately provided.

At this time, one driving pipe 110 is composed of one built-in pipe 110a and a coupling pipe 120, and the built-in pipe 110a is provided in a fixed state inside the driving frame 101, and the coupling pipe ( 120) are provided at different locations, so that the user can check the position of the lower surface of the pump unit 200 and correctly insert and couple the pump unit 200 to the drive unit 100, so that it fits into the housing 210 area with a simple coupling. to provide power.

On the other hand, even if the pump unit 200 is coupled and fixed to the driving unit 100 connected to the power supply source, vibration or the like occurs due to driving of the power supply source, the driving unit 100, and the pump unit 200, or the pump unit due to an external force. There is a possibility that the 200 may leave the driving unit 100.

In particular, in the method in which the lower end of the pump frame 201 is fitted on the upper side of the simple drive frame 101, there is a concern that the pump frame 201 may easily leave the drive frame 101 when the pneumatic pulsatile pump 1 is tilted. exists.

Therefore, the lower end of the pump frame 201 is inserted into the frame inlet groove 101a, and at the same time, the drive unit 100 and the pump unit 200 are firmly coupled so that the pump unit 200 is fixed to the drive unit 100. The first fastener 130 may be included in the driving unit 100 so as to be able to do so.

The first fastener 130 is formed on the upper surface of the driving frame 101 and has a hexahedral shape protruding upward. One side of the first fastener 130, that is, the side opposite to the driving pipe 110, is provided with a fastening pin 131 protruding in a pin shape.

The fastening pin 131 is inserted into the fastening groove 231 of the second fastener 230 while the first fastener 130 is inserted into the fastener inlet groove 205 formed on the lower surface of the pump frame 201. It is designed so that the fastening pin 131 does not leave the inside of the fastening groove 231 by a simple external force while staying in a locked state according to the inner surface step of the fastening groove 231.

Therefore, in the first fastener 130, the pump frame 201 is inserted into the frame inlet groove 101a of the driving frame 101 and at the same time the first fastener 130 is inserted into the fastener inlet groove 205. By being fastened with the second fastener 230, the pump frame 201 is prevented from being separated from the driving frame 101 by a simple external force, and when the pump frame 201 is moved in the vertical direction by manpower, the fastening groove The fastening pin 131, which is inserted into the 231 and becomes a lock, is separated from the fastening groove 231 so that the first fastener 130 and the second fastener 230 can be easily separated.

At this time, the fastening pin 131 can be moved only in one direction within the fastening groove 231 so that the first fastener 130 can be engaged and separated from the second fastener 230 in one direction, that is, only in the vertical direction. designed to be This will be explained in detail below.

The pump unit 200 receives power (pneumatic pressure) from the drive unit 100 and pressurizes the blood bag (not shown) built in the pump frame 201 to contract and expand it. Through this, the inlet pipe 202 ) and the patient's blood connected to the discharge pipe 203 can be easily drawn in and discharged.

The pump unit 200 is connected to a pump frame 201 in which a housing 210, a pneumatic pipe 220 and a second fastener 230 are embedded, and the housing 210 on the upper side of the pump frame 201 It includes an inlet pipe 202 through which the patient's blood is introduced and an outlet pipe 203 through which the patient's blood is discharged.

As described above, the pump frame 201 is connected to the housing 210 and the housing 210 and extends downward, the penetrating end of which can be combined with the coupling pipe 120 formed on the inner upper surface of the driving frame 101 A second fastener 230 coupled to the pneumatic pipe 220 and the first fastener 130 is built in.

The pump frame 201 has a pentagonal shape with a partially cut upper side, and an inlet pipe 202 connected to one end of the housing 210 protrudes upward on one side of the cut upper side, and on the other side of the cut upper side. The discharge pipe 203 connected to the other end of the housing 210 protrudes upward as well.

The inflow pipe 202 protrudes outward from the upper surface of the pump frame 201 and is connected to the patient's ventricle, and allows blood to be introduced into the pump frame 201 from the patient's ventricle.

The inlet pipe 202 is connected to the inlet housing 212 among the housings 210 built in the pump frame 201, and blood is easily introduced from the ventricle according to the internal pressure state of the inlet housing 212.

The discharge pipe 203 is connected to the patient's aorta so that blood introduced from the inlet pipe 202 is discharged to the aorta, and is connected to the discharge housing 213 of the housing 210 built in the pump frame 201 to discharge According to the internal pressure state of the housing 213, blood can be easily discharged toward the aorta.

In addition, when the pump frame 201 is inserted into the frame inlet groove 101a, both sides of the pump frame 201 can be easily fitted into fittings 102 protruding into the frame inlet groove 101a. The fitting groove 204 is recessed according to the position where the fitting hole 102 is formed.

Therefore, as shown in FIG. 9, when the pair of pump units 200 are coupled with the driving unit 100, the fittings 102 can be inserted into the fitting grooves 204 recessed on the outer surface of the pump frame 201, respectively. have.

At this time, the pump unit 200 is composed of a single unit or a plurality of units and can be combined with the driving unit 100, so that only one pump unit 200 (single-type) is coupled to the driving unit 100 according to the user's intention. It can be used by selecting a dual-type (when a pair of pump units 200 are coupled to the driving unit 100 as shown in the drawing) or a dual-type.

In addition, a fastener into which the second fastener 230 including the first fastener 130 can be inserted at a place where the first fastener 130 of the drive unit 100 is provided on the lower surface of the pump frame 201. The inlet groove 205 has a hexahedral shape and is recessed upward.

The fastener is pulled in through the coupling pin 230a of the second fastener 230 in a state where the second fastener 230 is inserted in the rearward direction of the pump frame 201 in the inside of the fastener inlet groove 205. It is fixed inside the groove 205, and the first fastener 130 is inserted inside the fastener inlet groove 205, except for the second fastener 230, so that the pump frame 201 is inserted into the frame inlet groove 101a When the first fastener 130 is inserted into the fastener inlet groove 205 by vertically descending and inserted into the inside, it can be automatically engaged with the second fastener 230 .

In addition, on the lower surface of the pump frame 201, a fixing protrusion 206 that can be fitted into the fixing groove 103 formed in a depression on the inner upper surface of the driving frame 101 described above, that is, on the inner surface where the frame inlet groove 101a is formed. is formed protrudingly.

The fixing protrusion 206 protrudes from the lower surface of the pump frame 201 as shown in FIG. 4 so that the lower surface of the pump frame 201 is in close contact with the inner surface of the frame inlet groove 101a so that the pump frame 201 is driven by the frame ( 101), in order to prevent the pump frame 201 from being separated from the driving frame 101 by external force, a fixing protrusion 206 inside the fixing groove 103 of the driving frame 101, such as the fitting groove 204 ) is inserted and fixed as it is drawn in to improve the coupling force between the driving frame 101 and the pump frame 201.

The housing 210 has a built-in blood bag (not shown) inside the housing 210 to decompress or pressurize the inside of the housing 210 so that the built-in blood bag is relaxed or contracted by the pressure so that blood can be easily introduced from the outside or to the aorta side. blood can drain.

The housing 210 includes a central housing 211 provided in the center and having a blood bag therein, an inlet housing 212 provided at one end of the central housing 211 and connected to the inlet pipe 202, and a central housing 212 connected to the inlet pipe 202. It is provided on the other end side of the housing 211 and is composed of a discharge housing 213 connected to the discharge pipe 203.

The central housing 211, the inlet housing 212, and the discharge housing 213 are each divided into zones and connected to the pneumatic pipe 220 in the pump frame 201 for each zone, and the coupling pipe 120 of the drive unit 100 Power (pneumatic) is provided from the drive unit 100 through the pneumatic pipe 220 connected to and through this, the central housing 211, the inlet housing 212, and the discharge housing 213 are depressurized or pressurized, respectively, to pump the frame ( 201) The blood introduced into the inside can circulate in one direction and be easily discharged through the discharge pipe 203.

Therefore, the inside of the inlet housing 212 is decompressed or pressurized through the connected pneumatic pipe 220 so that the blood of the ventricle connected to the inlet pipe 202 is introduced into the inlet housing 212 or provided in the central housing 211. It can be discharged to the side of the blood bag.

In addition, the inside of the central housing 211 is depressurized or pressurized through the connected pneumatic pipe 220 so that blood can flow from the inflow housing 212 to the built-in blood bag side or to the discharge housing 213 side to allow the blood in the blood bag to flow in. can eject.

In addition, the inside of the discharge housing 213 is depressurized or pressurized through the connected pneumatic pipe 220 so that blood is introduced from the blood bag in the central housing 211 or blood is flowed to the outside (the patient's aorta side) through the discharge pipe 203. plays a role in releasing

The housing 210 may be separated from the pump frame 201, and pneumatic pipe connectors 211a, 212a, and 213a are provided on the side connected to the pneumatic pipe 220, respectively, so that the pneumatic pipe built into the pump frame 201 220 and the housing 210 can be easily connected by region, and air pressure leaks at the side where the housing 210 and the pneumatic pipe 220 are connected, causing the pump frame 201 to burst due to the leaked air pressure. Accidents can be prevented.

In addition, when the separated housing 210 is coupled to the inside of the pump frame 201, the pneumatic pipe connectors 211a, 212a, and 213a are inserted into the distal end of the pneumatic pipe 220 connected to the housing 210 for easy insertion. By combining, the pneumatic pipe 220 suitable for each area of the housing 210 can be easily connected.

The pneumatic pipe 220 is built into the pump frame 201, the upper end is connected to each section of the housing 210, and the lower end is connected to the lower surface of the pump frame 201, so that the pneumatic pipe 220 is at the bottom of the pump frame. When 201 is combined with the driving frame 101, the coupling pipe 120 protruding upwards inside the frame inlet groove 101a is inserted so that the coupling pipe 120 and the pneumatic pipe 220 can be connected.

These pneumatic pipes 220 may be connected to the coupling pipe 120 at the corresponding position and connected to the driving pipe 110 and the built-in pipe 110a, through which the driving frame 101 receives the Power (pneumatic pressure) is received by the pneumatic pipe 220 and transmitted to the corresponding housing 210 to depressurize or pressurize the inside of the housing 210 connected thereto, thereby circulating blood.

On the other hand, the lower end of the pneumatic pipe 220 is in contact with the lower surface of the pump frame 201 and is open from the outside, but when the coupling pipe 120 is simply fitted to the lower end of the open pneumatic pipe 220, the pneumatic pipe 220 ) Due to the gap between the lower end and the coupling pipe 120, there is a possibility that the power transmitted from the drive frame 101 leaks through the gap.

Therefore, the lower end of the pneumatic pipe 220 is depressed to the degree of protrusion of the coupling pipe 120, and an inlet 221 is formed to correspond to the shape of the coupling pipe 120, and the inlet 221 is inside the inlet 221. (221) A plurality of O-rings 222 capable of closing the gap between the inside and the outside of the coupling pipe 120 are provided.

First, the inlet 221 is formed at the bottom of the pneumatic pipe 220 as shown in FIG. 4, and is recessed in the upper direction of the pump frame 201 in a shape corresponding to the coupling pipe 120 to form the coupling pipe 120 as shown in FIG. It can be inserted into the inlet 221 and fitted, and inside the inlet 221, a pair of O-rings 222 are provided on the upper and lower sides of the inlet 221, respectively, to engage with the inner surface of the inlet 221. A fine gap between the outside of the pipe 120 can be closed through the O-ring 222.

The O-ring 222 is made of a rubber material and has an elastic restoring force, so that when the coupling pipe 120 is pulled into the inlet 221, the O-ring 222 is compressed by the coupling pipe 120, and the outer surface of the coupling pipe 120 By being closely attached and fixed, the gap between the inlet 221 and the coupling pipe 120 can be closed.

At this time, the O-rings 222 may be configured as a pair inside one inlet 221 as shown in FIG. 4, but may also be configured in two or more.

The coupling pipe 120 inserted into the inlet 221 is in close contact with the inner surface of the inlet 221, and the hole formed in the center of the coupling pipe 120 and communicating with the inside of the built-in pipe 110a is connected to the pneumatic pipe 220. It is in close contact with the side formed with the inlet 221 so that the inside of the pneumatic pipe 220 and the inside of the coupling pipe 120 communicate with each other so that the power (pneumatic pressure) transmitted from the coupling pipe 120 is completely moved to the pneumatic pipe 220. make it possible

The fastener inlet groove 205 recessed on the lower surface of the pump frame 201 is provided with a second fastener 230 that can be fastened with the first fastener 130 of the drive frame 101 described above.

The second fastener 230 has a hexahedral shape corresponding to half the inner area of the fastener inlet groove 205, and both sides of the second fastener 230 have an inner surface of the fastener inlet groove 205, that is, The coupling pin 230a is formed so that it is directly coupled to the pump frame 201 so that the second fastener 230 can be fixed to the pump frame 201 .

In addition, on one side of the second fastener 230 that comes into contact with the first fastener 130, the fastening pin 131 of the first fastener 130 is inserted and retracted in the vertical direction of the pump frame 201. A fastening groove 231 through which the fastening pin 131 can move along the inside is formed according to the movement.

The fastening groove 231 is formed on one surface of the second fastener 230, and is formed in a triangular shape that is depressed from the lower end of one surface and becomes narrower toward the upper side, and the first region 231a with the upper end bent to one side and extending , the second region 231b moving from the upper end of the first region 231a to the center of the second fastener 230, and the opposite to the first region 231a at the end of the second region 231b. It is divided into a third region 231c that extends sideways and a fourth region 231d that extends downward from the third region 231c and contacts the bottom side of the first region 231a and has a recessed inner side communicating with each other. can lose

The movement between the second fastener 230 having such a fastening groove 231 and the first fastener 130 composed of the fastening pin 131 inserted into the fastening groove 231 and moving is shown in FIGS. 7A to 7D. let me explain

Prior to the description, FIGS. 7A to 7D are divided into (A), (B) and (C), respectively, in the drawings (A) of each drawing, the fastening pin 131 of the first fastener 130 fastens the second It schematically shows the movement of the fastening groove 231 in the sphere 230, and (B) in each figure indicates the degree of depression of the fastening groove 231, that is, the first area 231a to the fourth area 231d. The degree of depression up to is located on a horizontal line and is shown according to the direction in which the fastening pin 131 moves, and (C) in each drawing is a fastening drawn into the fastening groove 231 of the second fastener 230 It is revealed in advance that the pin 131 is shown in a perspective view.

First, FIG. 7A shows that when the pump frame 201 is inserted into the frame inlet groove 101a, the first fastener 130 is inserted into the fastener inlet groove 205, and the fastening pin 131 first enters the fastening groove ( 231) shows the appearance of being drawn inward.

The fastening pin 131 protrudes from the first fastener 130 toward the second fastener 230 and the pump frame 201 descends while the fastening pin 131 is drawn into the recessed lower side of the fastening groove 231. .

The fastening pin 131 is moved toward the first region 231a while the pump frame 201 further descends into the frame inlet groove 101a. At this time, the open lower end of the fastening groove 231 is the first region 231a. ) or the fourth region 231d. Since the fourth region 231d has an internal slope in which the degree of depression gradually decreases toward the lower side of the open fastening groove 231, the user can simply use the pump frame 201 ) is lowered into the frame inlet groove 101a of the driving frame 101, and the fastening pin 131 automatically moves toward the first region 231a.

As the first region 231a moves upward, the degree of depression gradually decreases as shown in (B) of FIG. 7A, and an internal slope of the first region 231a is formed.

While moving from the top of the first region 231a to the second region 231b, a step in which the degree of depression rapidly increases is generated.

Therefore, as shown in (B) of FIG. 7B, the degree of depression provided in the second area 231b is formed the same, and a step occurs from the second area 231b to the first area 231a, so that it is impossible to reverse. It is possible to move only in one direction, that is, to the third region 231c.

After that, even if the pump frame 201 is further lowered toward the drive frame 101 in the state of FIG. 7B, the fastening pin 131 descends in a state of being in close contact with the upper side in the second region 231b, and the third region ( 231c) and the second region 231b are stopped by being caught at one end of the third region 231c, that is, at the center of the upper side of the fastening groove 231 (Fig. 7C (A)). Reference).

At this time, the fastening pin 131 descends in a state of being in close contact with the upper surface in the second region 231b. The fastening pin 131 originally rises while the pump frame 201 descends, forcibly by the user's manpower. As it descends, it moves to the third region 231c.

Therefore, the locking pin 131 cannot move backward due to the step from the state provided in the third region 231c to the second region 231b side, and the locking pin 131 is located in the upper center of the fastening groove 231. In the provided state, the fastening pin 131 is locked in a state where it is caught on the inside of the fastening groove 231.

Through this, the fastening pin 131 does not descend unless the user strongly pulls the pump frame 201 upward and does not rise along the third region 231c by manpower in the third region. With the locking pin 131 provided at one end side of (231c), the first fastener 130 is coupled and fixed to the second fastener 230 to maintain a locked state (see FIG. 11).

As shown in FIG. 11, after the pump frame 201 is completely coupled to the drive frame 101, when the user separates the pump frame 201 from the drive frame 101 as shown in FIG. As shown in A), the fastening pin 131 moves from the third area 231c to the fourth area 231d, and while moving toward the fourth area 231d, the third area 231c and the fourth area 231d A gap between the two will occur.

The fourth region 231d has a greater degree of depression than the third region 231c, so that the fastening pin 131 that has moved toward the fourth region 231d cannot move backward toward the third region 231c. The region 231d has an internal slope in which the degree of depression gradually decreases toward the lower side.

Therefore, as shown in FIG. 7C, the fastening pin 131 is located in the upper center of the fastening groove 231 (ie, the starting point of the third region 231c) in a locked state, and moves the third region 231c by the user's manpower. and moves toward the fourth region 231d, and the fastening pin 131 is gradually moved along the inner lower slope of the fourth region 231d by the force of lifting the pump frame 201 upward to the second fastener 230 By escaping, the first fastener 130 and the second fastener 230 are easily separated, and the pump frame 201 can be separated from the drive frame 101 through this.

Through the fastening between the first fastener 130 and the second fastener 230, the first fastener 130 and the second fastener 230 cannot be fastened or separated with a simple upward pulling force. , When the user pushes the pump frame 201 into the frame inlet groove 101a above a certain pressure, the fastening pin 131 has the advantage of being able to be fastened with one touch while moving in one direction inside the fastening groove 231.

Therefore, when using a single or dual type pulsatile pump, the user can selectively combine the pump frame 201 with the drive frame 101 and use a pipe that provides power (pneumatic) to the housing 210. The drive pipe 110, the built-in pipe 110a, and the coupling pipe 120 and the pneumatic pipe 220 of the pump 200 are automatically connected without having to be connected separately, so that the power is wrong. 210 side, it is possible to receive power (pneumatic pressure) at an appropriate position simultaneously with the coupling of the drive unit 100 and the pump unit 200.

In addition, the pump frame 201 is inserted into the frame inlet groove 101a side of the drive frame 101 and coupled, and at the same time, the first fastener 130 and the second fastener 230 are fastened to drive the drive unit 100 and Since the pump unit 200 can be stably coupled, and the fastening pin 131 in the first fastener 130 moves inside the fastening groove 231 in only one direction, the pump frame 201 is damaged by a simple external force. Separation from the drive frame 101 can be prevented, and it has the advantage of being able to be coupled in a one-touch format.

Optimal embodiments have been disclosed in the drawings and specifications. Here, although specific terms have been used, they are only used for the purpose of describing the present invention and are not used to limit the scope of the present invention described in the meaning or claims. Therefore, those of ordinary skill in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

1: Pneumatic pulsatile pump
100: driving unit 101: driving frame
101a: frame inlet groove 102: fitting
102a: center fitting 102b: side fitting
103: fixing groove 110: drive pipe
110a: built-in pipe 120: coupling pipe
130: first fastener 131: fastening pin
200: pump unit 201: pump frame
202: inlet pipe 203: discharge pipe
204: fitting groove 205: fastener inlet groove
206: fixing protrusion 210: housing
211: central housing 212: inlet housing
213: discharge housing 211a, 212a, 213a: pneumatic pipe connector
220: pneumatic pipe 221: inlet
222: O-ring 230: second fastener
230a: coupling pin 231: fastening groove
231a: first area 231b: second area
231c: third area 231d: fourth area

Claims (8)

In the pneumatic pulsatile pump capable of one-touch coupling between the drive unit and the pump unit,
The drive unit has an open upper surface, a frame inlet groove is formed on the inside, a drive pipe connected to an external power supply source protrudes on the front side, and one end is connected to the drive pipe to transmit power to the pump unit. Including a driving frame with a built-in pipe,
The pump unit has an inlet pipe and a discharge pipe protruding from the upper side, a housing in which a blood bag is built in and both ends are connected to the inlet pipe and the discharge pipe, respectively, and an upper end is connected to the housing and a lower end communicates with the outer side of the lower surface. Including a pump frame containing a pneumatic pipe to be,
On the inner surface of the frame inlet groove,
a coupling pipe connected to the other end of the built-in pipe and inserted into the other end of the pneumatic pipe; And a first fastener protruding in a hexahedral shape and having a fastening pin protruding to one side; is formed,
A fastener inlet groove into which the first fastener is inserted is recessed on the lower surface of the pump frame, and a second fastening groove into which the coupling pin is inserted when the first fastener is inserted is formed inside the fastener inlet groove. phrase; is embedded,
A pneumatic pulsatile pump capable of one-touch coupling, characterized in that when the pump frame is inserted into the frame inlet groove and engaged, the fastening pin is inserted into the fastening groove and fastened.
According to claim 1,
The fastening groove,
a first region recessed upward from the lower surface of the second fastener;
a second region connected to an upper end of the first region, descending toward the center of the second fastener, and extending inwardly;
a third region connected to the extended end of the second region and extending concavely upward in a direction opposite to the first region; and
A fourth region connected to the extended end of the third region and extending downward to communicate with the lower end of the first region;
When the pump frame is pulled into the frame inlet groove, the fastening pin moves along the first area and the second area and is locked,
When the pump frame separates to the outside of the frame inlet groove, the fastening pin moves along the third region and the fourth region so that the fastening pin separates to the outside of the fastening groove. Pump.
According to claim 2,
As the first region is depressed and extended upward, the degree of depression gradually decreases to form an inner lower surface slope,
The second region has an increased degree of depression than the first region, so that a step is formed between the first region and the second region,
The third region has a greater degree of depression than the second region, so that a step is formed between the second region and the third region.
As the fourth region is depressed and extended downward, the degree of depression gradually decreases, and the upper end connected to the third region has a greater degree of depression than the third region, so that a step is formed between the third region and the fourth region,
The fastening pin is drawn into the first area and moves to the second area, but does not retrograde due to a step between the first area and the second area, and does not retrograde toward the second area when provided in the third area. , Pneumatic pulsatile pump capable of one-touch coupling, characterized in that it moves from the third area to the fourth area, but does not go backward due to a step difference between the third area and the fourth area and moves only in one direction toward the inside of the fastening groove. .
According to claim 1,
At the bottom of the pneumatic pipe, an inlet is formed in the shape of the driving pipe and is recessed upward from the lower surface of the pump frame and has a plurality of O-rings formed therein.
The pneumatic pulsatile pump capable of one-touch coupling, characterized in that the coupling tube is inserted into the inlet and fitted, and the O-ring closes a gap between the coupling tube and the inside of the inlet.
According to claim 1,
A fitting hole is formed on the inner surface of the frame inlet groove,
The fitting is provided at both ends of the frame inlet groove, respectively, and a side fitting provided on the front and rear sides; and
It consists of; center fittings respectively provided on the front side and the rear side of the frame inlet groove at the center of the spaced apart space of the side fittings,
The pump frame is formed on both sides of the pump frame, and a fitting groove recessed on the front side and the rear side is formed,
When the pump frame is inserted into the frame inlet groove, the side fitting hole is inserted into the fitting groove formed on one side of the pump frame and is fitted, and the center fitting hole is inserted into the fitting groove formed on the other side of the pump frame. A pneumatic pulsatile pump capable of one-touch coupling, characterized in that it is fitted.
According to claim 1,
the housing,
a central housing in which the blood bag is built; an inlet housing having one end connected to the inlet pipe and the other end connected to the central housing; and a discharge housing having one end connected to the central housing and the other end connected to the discharge pipe,
The pneumatic pipe is connected to the central housing, the inflow housing, and the discharge housing, respectively, and depressurizes or pressurizes the inside of the housing to receive blood through the inlet pipe, circulate the housing in one direction, and discharge it through the discharge pipe. Pneumatic pulsatile pump featuring one-touch engagement.
According to claim 6,
The pneumatic pipe is connected to each of the central housing, the inflow housing and the discharge housing in a corresponding number,
The drive pipe, the built-in pipe, and the coupling pipe are integrally formed, and the drive pipe, the built-in pipe, and the coupling pipe are made of a number corresponding to the pneumatic pipe and are individually connected. pulsatile pump.
According to claim 1,
A plurality of fixing grooves are recessed downward on the inner surface of the frame inlet groove,
A fixing protrusion is formed on the lower surface of the pump frame and protrudes downward to correspond to the recessed shape of the fixing groove at a position corresponding to the fixing groove.
A pneumatic pulsatile pump capable of one-touch coupling, characterized in that when the pump frame is inserted into the frame inlet groove, the fixing protrusion is inserted into the fixing groove and fixed.

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