CN110755712A

CN110755712A - Chemotherapy pump

Info

Publication number: CN110755712A
Application number: CN201810824844.6A
Authority: CN
Inventors: 彭朝雄
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2018-07-25
Filing date: 2018-07-25
Publication date: 2020-02-07

Abstract

The invention discloses a chemotherapy pump, comprising: a pump body; the medicine box, be equipped with at least one cooperation groove on one of the medicine box with in the pump body and at the hasp that can move between locking position and unblock position, be equipped with on the other of medicine box with in the pump body and be suitable for stretching into and cooperate in at least one cooperation portion in the cooperation inslot, be formed with the locking groove on one of hasp with in cooperation portion, be equipped with locking portion on the hasp with another of cooperation portion, when the hasp is located locking position the cooperation portion cooperation is in the cooperation inslot and locking portion cooperation is in the locking inslot, when the hasp is located unlocking position the locking portion with locking groove break away from the cooperation so that cooperation portion is suitable for following the cooperation inslot is deviate from. According to the chemotherapy pump, the pump body and the medicine box can be reliably connected, the connection strength is high, and the pump is convenient to disassemble and assemble.

Description

Chemotherapy pump

Technical Field

The invention relates to the technical field of medical treatment, in particular to a chemotherapy pump.

Background

In the related art, the chemotherapy pump generally comprises a pump body and a medicine box, wherein the pump body and the medicine box are usually locked by knob locks, the lock strength of the lock positions is not strong, the chemotherapy pump can be loosened when not being installed in place, and the chemotherapy pump is complex to disassemble and assemble. Moreover, the liquid medicine in the medicine box is usually liquid, and when the medicine box is used, the liquid medicine can enter the pump body to cause the whole chemotherapy pump to be incapable of working normally. In addition, the pressure detection, the bubble detection, the infusion rotating speed detection and the three-way valve installation detection mechanism of the chemotherapy pump occupy large space, so that the whole chemotherapy pump occupies large space. In addition, the whole chemotherapy pump has complex manufacturing process and complex whole structure.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a chemotherapy pump, and the pump body and the medicine box of the chemotherapy pump are convenient to disassemble and assemble.

A chemotherapy pump according to an embodiment of the invention, comprising: a pump body; the medicine box, be formed with at least one cooperation groove on one of medicine box and the pump body, be equipped with on one of medicine box and the pump body between locking position and unblock position movable hasp, be equipped with on the other of medicine box and the pump body and be suitable for stretching into and cooperate at least one cooperation portion in the cooperation inslot, be formed with the locking groove on one of hasp and the cooperation portion, be equipped with locking portion on the other of hasp and the cooperation portion, when the hasp is located locking position the cooperation portion cooperate in the cooperation inslot and locking portion cooperation in the locking inslot, when the hasp is located unblock position the locking portion with locking groove break away from the cooperation so that cooperation portion is suitable for to deviate from in the cooperation inslot.

According to the chemotherapy pump provided by the embodiment of the invention, the pump body and the medicine box are provided with the matching groove and the matching part which are suitable for being matched with each other, the lock catch which can move between the locking position and the unlocking position is arranged, and the lock catch and the matching part are provided with the locking part and the locking groove which are separably matched with each other, so that the pump body and the medicine box can be reliably connected, and the chemotherapy pump is high in connection strength and convenient to disassemble and assemble.

According to some embodiments of the present invention, two mating grooves are formed on the pump body at an interval, the two latches are respectively disposed on two opposite side surfaces of the pump body, one side of each latch adjacent to the corresponding mating groove is provided with the locking portion adapted to extend into the mating groove, the medicine box is provided with two mating portions adapted to be respectively mated in the two mating grooves, and one side of each mating portion adjacent to the corresponding latch is provided with the locking groove.

According to some embodiments of the invention, each lock catch is pivotally connected to the pump body, the locking portion is disposed at one end of the corresponding lock catch adjacent to the medicine box, and an elastic member for normally pushing the lock catch in a direction away from the center of the pump body is disposed between the other end of the lock catch and the pump body.

According to some embodiments of the invention, the resilient member is a spring.

According to some embodiments of the invention, at least one medicine box clamping in-place detection device is arranged in the pump body, and the free end of at least one matching part is provided with a sensing element which is suitable for being sensed by the medicine box clamping in-place detection device when the matching part is matched in the matching groove.

According to some embodiments of the invention, the medicine box clamping-in-place detecting device is a first hall switch, and the sensing element is a sensing magnet.

According to some embodiments of the invention, a battery compartment is arranged on the pump body, a detachable battery cover is arranged on the battery compartment, and the battery cover is hermetically connected with the battery compartment when the battery cover is arranged on the battery compartment.

According to some embodiments of the present invention, a battery cover receiving groove is formed on an outer circumferential wall of the battery cover, and an annular battery cover sealing ring is disposed in the battery cover receiving groove to seal a gap between the battery cover and the battery compartment.

According to some embodiments of the invention, a battery cover buckle is arranged on the pump body, the battery cover buckle is arranged on one side of the battery compartment, when the battery cover is arranged on the battery compartment, the battery cover buckle locks the battery cover on the battery compartment, and the battery cover buckle is connected with the pump body in a sealing manner.

According to some embodiments of the present invention, the battery cover buckle has a buckle portion, one end of the battery compartment is provided with a battery cover buckle accommodating slot communicated with the battery compartment, the battery cover buckle is rotatably arranged in the battery cover buckle accommodating slot, the buckle portion is adapted to press the battery cover in the battery compartment when at least a portion of the buckle portion extends into the battery compartment, and the battery cover is adapted to be taken out of the battery compartment when the buckle portion is completely located in the battery cover buckle accommodating slot.

According to some embodiments of the invention, a screw is disposed in the pump body, the battery cover buckle has a buckle post penetrating through the pump body and connected to the screw in a threaded manner, and at least one first battery cover buckle sealing ring is disposed between the outer circumferential surface of the buckle post and the battery cover buckle accommodating groove.

According to some embodiments of the invention, a second battery cover snap seal is provided between the screw and the pump body.

According to some embodiments of the present invention, the pump body is provided with a multi-way valve switching module, a bubble detection module, an infusion module and a pressure detection module, which are sequentially arranged.

According to some embodiments of the invention, a light sensing element is disposed in the pump body, and the infusion module comprises an infusion shaft, and a spoke piece matched with the light sensing element is fixedly connected to the infusion shaft to detect the rotation speed of the infusion shaft.

According to some embodiments of the present invention, a plurality of medicine bags are disposed in the medicine box, a plurality of second hall switches corresponding to the plurality of medicine bags one to one are disposed in the pump body, the multi-way valve switching module includes a motor and a transmission rod fixedly connected to the motor, a magnet is disposed on the transmission rod, and when the magnet is sensed by the corresponding second hall switch, the multi-way valve switching module is communicated with the corresponding medicine bag.

According to some embodiments of the invention, the drive rod is sleeved with a drive rod seal.

According to some embodiments of the invention, the infusion module comprises an infusion part extending out of the pump body, the infusion part comprises at least one telescopic part which is telescopic relative to the medicine box, an infusion part sealing ring is arranged on the infusion part, the infusion part sealing ring comprises at least two sub sealing rings which are arranged around the telescopic part and are spaced along the telescopic direction of the telescopic part, and an annular groove which is concave towards the direction far away from the telescopic part is defined between every two adjacent sub sealing rings.

According to some embodiments of the invention, the pressure detection module comprises a ram on which a ram seal ring is sleeved.

According to some embodiments of the invention, the pump body comprises an upper shell and a lower shell which are buckled with each other, and a first waterproof ring is arranged between the upper shell and the lower shell.

According to some embodiments of the invention, the pump body is provided with a middle frame on the side surface, and a second waterproof ring is arranged between the pump body and the middle frame.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic front view of a chemotherapy pump according to an embodiment of the invention, prior to use;

FIG. 2 is a schematic dorsal view of a chemotherapy pump according to an embodiment of the invention before use;

FIG. 3a is a front view of a chemotherapy pump according to an embodiment of the invention in use;

FIG. 3b is a rear view of the chemotherapy pump shown in FIG. 3 a;

FIG. 3c is a left side view of the chemotherapy pump shown in FIG. 3 a;

FIG. 3d is a right side view of the chemotherapy pump shown in FIG. 3 a;

FIG. 3e is a top view of the chemotherapy pump shown in FIG. 3 a;

FIG. 3f is a bottom view of the chemotherapy pump shown in FIG. 3 a;

FIG. 4a is a schematic view of a chemotherapy pump according to an embodiment of the invention as installed;

FIG. 4b is a schematic illustration of a chemotherapy pump with the pump removed, according to an embodiment of the invention;

FIG. 5 is a cross-sectional view of a chemotherapy pump according to an embodiment of the invention;

FIG. 6 is an exploded view of a portion of the components of the pump body of a chemotherapy pump according to an embodiment of the invention;

FIG. 7 is a perspective view of the latch shown in FIG. 6;

FIG. 8 is an exploded view of a chemotherapy pump according to an embodiment of the invention;

FIG. 9 is an exploded view of a lower housing, battery cover clip and horn of a chemotherapy pump according to an embodiment of the invention;

fig. 10 is a perspective view of the battery cover clip shown in fig. 9;

FIG. 11 is an exploded view of the upper housing, infusion module and multi-way valve switching module of a chemotherapy pump according to an embodiment of the invention;

FIG. 12 is an exploded view of the upper housing, lower housing, center frame, second waterproof ring, push rod seal ring and drive rod seal ring of a chemotherapy pump according to an embodiment of the invention;

FIG. 13 is an enlarged view of portion A circled in FIG. 12;

FIG. 14 is an exploded view of the upper housing, lower housing, middle frame, first watertight ring and second watertight ring of a chemotherapy pump according to an embodiment of the invention;

fig. 15 is an exploded view of an upper housing, a three-way valve rotation detection PCB (printed circuit Board, also called printed circuit Board, which is an important electronic component, a support for an electronic component, which is a carrier for electrical connection of the electronic component), a bubble detection PCB, a pressure detection PCB, and a detection in-place PCB of the chemotherapy pump according to the embodiment of the present invention;

fig. 16 is an exploded view of the upper housing and PCB assembly of a chemotherapy pump according to an embodiment of the invention.

Reference numerals:

100: a chemotherapy pump;

1: a pump body; 11: a mating groove; 12: locking;

121: a lock section; 122: an elastic member;

13: a medicine box clamping in-place detection device;

141: a battery compartment; 142: a battery cover; 1421: a pin;

143: a battery cover sealing ring;

144: the battery cover is buckled; 1441: a buckle part; 1442: buckling a column;

1443: the first battery cover is buckled with the sealing ring; 1444: the second battery cover is buckled with the sealing ring;

151: a multi-way valve switching module; 1512: a transmission rod; 1513: a transmission rod sealing ring;

152: a bubble detection module;

153: an infusion module; 1531: an infusion shaft; 1532: a web;

1533: an infusion section; 1534: a telescopic part; 1535: a sub-seal ring; 1536: an annular groove;

154: a pressure detection module; 1541: a top rod; 1542: a mandril sealing ring;

16: a light sensing element; 17: a second Hall switch;

181: an upper housing; 1811: a display screen; 1812: LCD foam;

1813: LCD supporting foam; 1814: an indicator light;

182: a lower housing; 1821: a sound outlet hole of the loudspeaker;

1822: a horn assembly; 1823: a dust screen;

1824: a waterproof breathable film; 1825: soaking cotton glue;

183: a middle frame;

184: a first waterproof ring; 185: a second waterproof ring;

19: a membrane switch; 191: a PCB assembly;

192: the three-way valve rotates to detect the PCB; 193: detecting the PCB by bubbles;

194: a pressure detection PCB board; 195: detecting the PCB in place; 196: a wire pressing plate;

2: a kit; 21: a fitting portion; 211: an inductive element;

22: a medicine injection port; 23: a medicine outlet;

3: a battery.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A chemotherapy pump 100 according to an embodiment of the invention is described below with reference to fig. 1-16.

As shown in fig. 1 to 16, a chemotherapy pump 100 according to an embodiment of the invention includes a pump body 1 and a drug cassette 2.

Specifically, one of the medicine cartridge 2 and the pump body 1 is formed with at least one fitting groove 11, and the above-mentioned one of the medicine cartridge 2 and the pump body 1 is provided with a lock catch 12 movable between a lock position and an unlock position. The catch 12 and the mating groove 11 are now provided on the same component, for example both on the pump body 1 (as shown in fig. 1-6) or both on the cartridge 2 (not shown). The other of the cartridge 2 and the pump body 1 is provided with at least one fitting portion 21 adapted to project into and fit in the fitting groove 11.

One of the lock catch 12 and the matching part 21 is formed with a locking groove, the other of the lock catch 12 and the matching part 21 is provided with a locking part 121, the matching part 21 is matched in the matching groove 11 and the locking part 121 is matched in the locking groove when the lock catch 12 is positioned at a locking position, and the locking part 121 is separated from the locking groove to make the matching part 21 suitable for being separated from the matching groove 11 when the lock catch 12 is positioned at an unlocking position.

For example, in the example of fig. 1 to 16, both the lock catch 12 and the engagement groove 11 are arranged on the pump body 1, the engagement portion 21 is arranged on the medicine cartridge 2, the lock portion 121 is provided on the lock catch 12, and the lock groove is formed on the engagement portion 21. When the chemotherapy pump 100 is needed, the drug cassette 2 can be mounted on the pump body 1, specifically, the matching portion 21 of the drug cassette 2 is inserted into the matching groove 11 of the pump body 1, in this process, the locking portion 121 of the lock catch 12 on the pump body 1 can be matched with the locking groove on the matching portion 21 to lock the matching portion 21 on the pump body 1, and at this time, the lock catch 12 is in the locking position, so that the connection between the drug cassette 2 and the pump body 1 is realized, and the installation is convenient and firm, as shown in fig. 4a and fig. 5-6. After the chemotherapy pump 100 is used, the drug cassette 2 can be detached from the pump body 1, specifically, the lock catch 12 is moved from the locking position to the unlocking position, at this time, the locking portion 121 of the lock catch 12 on the pump body 1 is disengaged from the locking groove on the fitting portion 21 of the drug cassette 2, the fitting portion 21 is no longer locked, and at this time, the fitting portion 21 can be pulled out from the fitting groove 11, so as to separate the drug cassette 2 from the pump body 1, as shown in fig. 4 b-6.

Of course, the present invention is not limited thereto, and the lock catch 12 and the fitting groove 11 may also be arranged on the medicine cartridge 2, and the fitting portion 21 is arranged on the pump body 1 (not shown). It is understood that the specific arrangement positions of the locking part 121 and the locking groove can be specifically set according to actual requirements to better meet practical application.

According to the chemotherapy pump 100 provided by the embodiment of the invention, the matching groove 11 and the matching part 21 which are suitable for matching with each other are arranged on the pump body 1 and the medicine box 2, the lock catch 12 which can move between the locking position and the unlocking position is arranged, and the locking part 121 and the locking groove which can be matched with each other in a separable mode are arranged on the lock catch 12 and the matching part 21, so that the reliable connection between the pump body 1 and the medicine box 2 can be realized, the connection strength is high, and the disassembly and the assembly are convenient.

According to some embodiments of the present invention, referring to fig. 1-6, two mating grooves 11 are formed on the pump body 1 at intervals, two latches 12 are provided, the two latches 12 are respectively provided on two opposite sides of the pump body 1, one side of each latch 12 adjacent to the corresponding mating groove 11 is provided with a locking portion 121 adapted to extend into the mating groove 11, the medicine box 2 is provided with two mating portions 21 adapted to be respectively fitted into the two mating grooves 11, and one side of each mating portion 21 adjacent to the corresponding latch 12 is provided with a locking groove. For example, in the example of fig. 1 to 6, two fitting grooves 11 are formed on a side surface of the pump body 1 facing the medicine cartridge 2 and spaced apart from each other in a length direction of the side surface, two latches 12 are respectively arranged on two side surfaces of the pump body 1 contiguous to the side surface and opposite to each other, the two latches 12 are in one-to-one correspondence with the two fitting grooves 11, one side of each latch 12 adjacent to a center of the pump body 1 is provided with a locking portion 121, the two fitting portions 21 are two, the two fitting portions 21 are provided on a side surface of the medicine cartridge 2 facing the pump body 1 and spaced apart from each other, the two fitting portions 21 are adapted to be fitted with the two fitting grooves 11 in one-to-one correspondence, and a locking groove adapted to be fitted with the locking portion 121 is formed on a side surface of each fitting portion 21. Thus, by using two fitting grooves 11, two fitting portions 21, and two lock catches 12, the connection between the pump body 1 and the medicine cartridge 2 is more secure.

When the chemotherapy pump 100 needs to be used, as shown in fig. 4a, the two matching portions 21 on the drug box 2 can be respectively inserted into the two matching grooves 11 of the pump body 1, in this process, the locking portions 121 of the two latches 12 on the pump body 1 can be respectively matched with the locking grooves on the corresponding matching portions 21 to lock the two matching portions 21 on the pump body 1, and at this time, the latches 12 are in the locking positions, so that the drug box 2 and the pump body 1 can be reliably connected. After the chemotherapy pump 100 is used, as shown in fig. 4b, the two latches 12 on the two sides of the pump body 1 can be pressed by fingers, so that the two latches 12 move from the locking positions to the unlocking positions, the locking portions 121 of the two latches 12 on the pump body 1 are disengaged from the locking grooves of the corresponding matching portions 21 on the drug box 2, the two matching portions 21 are not locked any more, and the two matching portions 21 can be pulled out from the two matching grooves 11 of the pump body 1, so that the drug box 2 and the pump body 1 can be separated.

Further, referring to fig. 4b and 5 in combination with fig. 6-7, each lock catch 12 is pivotally connected to the pump body 1, the locking portion 121 is disposed at one end (e.g., the lower end in fig. 5) of the corresponding lock catch 12 adjacent to the medicine box 2, and an elastic member 122 is disposed between the other end (e.g., the upper end in fig. 5) of the lock catch 12 and the pump body 1 for normally pushing the lock catch 12 away from the center of the pump body 1. For example, as shown in fig. 6 and 7, the latch 12 may be pivotably connected to the pump body 1 by a pivot shaft between the one end and the other end of the latch 12. Thus, by providing the elastic member 122, the locking portion 121 at the one end of the lock catch 12 can be always positioned in the engagement groove 11 in a normal state, and at this time, the elastic member 122 is not subjected to an external force. In the process of installing the matching part 21 in the corresponding matching groove 11, before the matching part 21 contacts the locking part 121, the locking part 121 is always located in the matching groove 11, after the matching part 21 contacts the locking part 121, as the matching part 21 continues to extend into the matching groove 11, the matching part 21 pushes the locking part 121 to move towards the direction away from the center of the corresponding matching groove 11, at this time, the one end of the lock catch 12 rotates outwards around the pivot shaft, the other end of the lock catch 12 compresses the elastic part 122 inwards around the pivot shaft, when the locking part 121 moves along with the matching part 21 to contact with the locking groove on the locking part, the locking part 121 is matched in the locking groove, at this time, the lock catch 12 resets, and the medicine box 2 is locked on the pump body 1. When the medicine box 2 needs to be detached, the other end of the lock catch 12 can be pressed to compress the elastic member 122, and at this time, the one end of the lock catch 12 rotates outwards around the pivot shaft, so that the locking part 121 on the lock catch 12 can be withdrawn from the corresponding locking groove, and the matching part 21 is pulled out from the matching groove 11, thereby realizing the separation of the pump body 1 and the medicine box 2. Here, it should be noted that the direction "outer" is understood to be a direction away from the center of the pump body 1, and the opposite direction is defined as "inner", i.e., a direction toward the center of the pump body 1.

Alternatively, as shown in fig. 6, the elastic member 122 is a spring. Therefore, the structure is simple and the cost is low. But is not limited thereto.

Therefore, the lock catch 12, the matching part 21 and the matching groove 11 are simple in structure, the pump body 1 and the medicine box 2 are clamped stably and reliably, and the disassembly is simple.

According to some embodiments of the present invention, referring to fig. 5, at least one medicine cassette loading-in-position detecting device 13 is provided in the pump body 1, and a free end (e.g., an upper end in fig. 4a and 4 b) of at least one of the fitting portions 21 is provided with a sensing element 211, and the sensing element 211 is adapted to be sensed by the medicine cassette loading-in-position detecting device 13 when the fitting portion 21 is fitted in the fitting groove 11. For example, in the example of fig. 5, there are two sensing elements 211, two sensing elements 211 are respectively disposed on a side surface of the corresponding matching portion 21 adjacent to the center of the pump body 1, there are two medicine box in-place clamping detection devices 13, both the two medicine box in-place clamping detection devices 13 are disposed in the pump body 1 and between the two matching grooves 11, and each medicine box in-place clamping detection device 13 is disposed adjacent to the corresponding matching groove 11, so that after the matching portion 21 is matched in the matching groove 11, the medicine box in-place clamping detection device 13 can well sense the sensing elements 211, and it is ensured that the in-place clamping condition of the medicine box 2 can be accurately detected.

Optionally, the medicine box clamping in-place detection device 13 is a first hall switch, and the sensing element 211 is a sensing magnet. When the medicine box 2 is clamped in place, the first Hall switch is detected to correspond to the induction magnet, and a magnetic signal is detected to complete the detection function. But is not limited thereto.

Further, the first hall switch can detect the magnitude of the magnetic force of the induction magnet. For example, when the medicine cartridge 2 is mounted in place, the first hall switch may be disposed opposite to the sensing magnet, so that when the first hall switch detects that its magnetic force sensing is maximum, it indicates that the medicine cartridge 2 is mounted in place.

When the medicine box is installed, as shown in fig. 4a, the two matching portions 21 of the medicine box 2 are aligned to the two matching grooves 11 of the pump body 1, inserted and locked by the corresponding lock catches 12, and the medicine box clamping in-place detection device 13 detects that the medicine box 2 is installed in place. When the medicine box 2 is removed, as shown in fig. 4b, the lock catches 12 on the left side and the right side of the pump body 1 are pressed, the medicine box 2 is pulled out, and meanwhile the removal of the medicine box 2 is detected, so that the removal of the medicine box 2 is completed.

According to some embodiments of the present invention, referring to fig. 1 and fig. 2 in combination with fig. 8, a battery compartment 141 is provided on the pump body 1, a battery 3 such as an AA battery 3 is placed in the battery compartment 141, a detachable battery cover 142 is provided on the battery compartment 141, and the battery cover 142 is hermetically connected to the battery compartment 141 when the battery cover 142 is covered on the battery compartment 141. Therefore, by arranging the battery compartment 141, the chemotherapy pump 100 can work in a mode of installing the battery 3, so that the chemotherapy pump 100 can be carried about and is more convenient. Moreover, by providing a detachable battery cover 142, the mounting and dismounting of the battery 3 is facilitated. In addition, through the arrangement that the battery cover 142 is hermetically connected with the battery compartment 141 when the battery cover 142 is covered on the battery compartment 141, external liquid such as water or the like or liquid medicine in the medicine box 2 is not easy to enter the battery compartment 141, and the normal operation of the chemotherapy pump 100 is ensured.

Optionally, as shown in fig. 8, a battery cover 142 receiving groove is formed on the outer circumferential wall of the battery cover 142, and an annular battery cover 142 sealing ring is disposed in the battery cover 142 receiving groove to seal a gap between the battery cover 142 and the battery compartment 141. Therefore, the battery cover 142 accommodating groove has a positioning function on the battery cover 142 sealing ring, the sealing reliability between the battery cover 142 and the battery compartment 141 is ensured, and the battery cover 142 sealing ring is adopted, so that the structure is simple and the cost is low.

According to some embodiments of the present invention, referring to fig. 2, a battery cover button 144 is disposed on the pump body 1, the battery cover button 144 is disposed on one side of the battery compartment 141, when the battery cover 142 is covered on the battery compartment 141, the battery cover button 144 locks the battery cover 142 on the battery compartment 141, and the battery cover button 144 is hermetically connected to the pump body 1. Therefore, the battery cover button 144 is hermetically connected with the pump body 1, so that external liquid such as water or liquid medicine in the medicine box 2 is not easy to enter the battery compartment 141 through the gap between the battery cover button 144 and the pump body 1, and the normal operation of the chemotherapy pump 100 is ensured.

Specifically, for example, as shown in fig. 2 and 8, the battery cover clip 144 has a buckle portion 1441, one end of the battery compartment 141 is provided with a battery cover clip 144 receiving groove communicated with the battery compartment 141, the battery cover clip 144 is rotatably provided in the battery cover clip 144 receiving groove, the buckle portion 1441 is adapted to press the battery cover 142 in the battery compartment 141 when at least a portion of the buckle portion 1441 extends into the battery compartment 141, and the battery cover 142 is adapted to be taken out of the battery compartment 141 when the buckle portion 1441 is completely located in the battery cover clip 144 receiving groove. The other end of the battery compartment 141 may be formed with at least one insertion hole, and the battery cover 142 is provided with at least one pin adapted to be engaged with the insertion hole, as shown in fig. 2. When the battery cover 142 is installed, the fastening portion 1441 of the battery cover buckle 144 may be rotated to the outside of the battery compartment 141, at this time, the fastening portion 1441 may be completely located in the receiving groove of the battery cover buckle 144, the pin at the other end of the battery cover 142 is inserted into the insertion hole, and the one end of the battery cover 142 is received in the battery compartment 141, and then the battery cover buckle 144 is rotated to make the fastening portion 1441 of the battery cover buckle 144 extend into the battery compartment 141 to press the battery cover 142, thereby completing the installation of the battery cover 142. When the battery cover 142 is detached, the battery cover button 144 may be rotated to prevent the button 1441 from extending into the battery compartment 141, and then the one end of the battery cover 142 is snapped outward, so that the pin of the other end of the battery cover 142 is disengaged from the insertion hole, thereby detaching the battery cover 142. Therefore, the battery cover buckle 144 with the buckling part 1441 is adopted, so that the battery cover 142 is convenient to mount and dismount, the battery cover 142 can be pressed on the battery bin 141, and the waterproof performance is good.

Optionally, referring to fig. 9 in combination with fig. 10, a screw is disposed in the pump body 1, the battery cover buckle 144 has a buckle column 1442 penetrating the pump body 1 and connected to the screw by a thread, and at least one first battery cover buckle sealing ring 1443 is disposed between an outer circumferential surface of the buckle column 1442 and the battery cover buckle 144 receiving groove. For example, in the example of fig. 9 and 10, two first cap snap rings 1443 are shown, two grooves are formed on the stud 1442 at intervals in the axial direction, and the two first cap snap rings 1443 are respectively fitted in the two grooves, so that, when the stud 1442 passes through the pump body 1, the two first cap snap rings 1443 may be pressed against the inner circumferential wall of the through hole of the pump body 1 to seal the gap between the stud 1442 and the inner circumferential wall of the through hole.

Further, a second battery cover buckle seal 1444 is arranged between the screw and the pump body 1, as shown in fig. 9. For example, referring to fig. 9, a screw including a head portion and a screw portion connected to each other is threadedly coupled to a fastening post 1442 of the battery cover fastener 144, and the pump body 1 may be formed with a receiving groove opened toward one side surface of the head portion connected to the screw portion, and a second battery cover fastener sealing ring 1444 may be provided in the receiving groove to seal a gap between the head portion and the pump body 1. Thereby, liquid such as water or the like is less likely to enter the inside of the pump body 1 through the gap between the screw and the pump body 1.

Of course, the present invention is not so limited and, according to other embodiments of the present invention, the chemotherapy pump 100 may also be operated directly from a power source, such as a DC power source, to save the cost of purchasing the battery 3. Alternatively, the chemotherapy pump 100 can be powered by both the battery 3 and the power source, and the user can select the battery 3 or the power source to operate the chemotherapy pump 100 according to actual needs.

According to some embodiments of the present invention, as shown in fig. 1 and 5, the pump body 1 is provided with a multi-way valve switching module 151, a bubble detection module 152, an infusion module 153 and a pressure detection module 154, which are arranged in sequence. For example, when different liquid medicines need to be infused, a plurality of medicine bags can be arranged in the medicine box 2, and the multi-way valve switching module 151 is used for being switched and communicated with different medicine bags, so that different liquid medicines can be infused. The bubble detecting module 152 is used for detecting the bubble condition in the infusion tube of the medicine box 2 to ensure the safety of the infusion. For example, the bubble detection module 152 may compact the infusion tube through the medicine box 2 and the bubble sensor, so as to achieve the purpose of detecting the bubble condition in the infusion tube, thereby achieving the bubble detection. The infusion module 153 may be used to detect the rate at which the medical fluid is infused and infuse the medical fluid. The pressure detecting module 154 is used for detecting the pressure of the medical fluid in the infusion tube. For example, in the example of fig. 1 and 5, the multi-way valve switching module 151, the bubble detection module 152, the infusion module 153, and the pressure detection module 154 are arranged in this order in the width direction of the pump body 1. From this, through arranging multiport valve switching module 151, bubble detection module 152, infusion module 153 and pressure detection module 154 on the pump body 1 according to actual operation order in order, chemotherapy pump 100 functional configuration is reasonable, and makes whole pump body 1 design compact, has reduced occupation space.

According to some embodiments of the present invention, referring to fig. 5 in combination with fig. 11, the light sensing element 16 is disposed in the pump body 1, the infusion module 153 includes an infusion shaft 1531, and a spoke 1532 cooperating with the light sensing element 16 is fixedly connected to the infusion shaft 1531 to detect the rotation speed of the infusion shaft 1531. When the infusion shaft 1531 rotates, the spoke 1532 may rotate synchronously with the infusion shaft 1531, so that the rotation speed of the spoke 1532 may be detected by the light sensing element 16 to achieve the function of detecting the infusion rotation speed.

Optionally, the light sensing element 16 is an opto-electronic switch. Therefore, the photoelectric switch is matched with the spoke 1532, and the detection speed is accurate. But is not limited thereto.

According to some embodiments of the present invention, as shown in fig. 5 and 15, a plurality of second hall switches 17 corresponding to a plurality of medicine pouches in the medicine box 2 are disposed in the pump body 1, the multi-port valve switching module 151 includes a motor and a transmission rod 1512 fixedly connected to the motor, a magnet is disposed on the transmission rod 1512, and the multi-port valve switching module 151 communicates with the corresponding medicine pouch when the magnet is sensed by the corresponding second hall switch 17. The multi-way valve switching module 151 can be a three-way valve switching module, two medicine bags can be arranged in the medicine box 2 at the moment, the second hall switches 17 can be two, and the two second hall switches 17 can be arranged on the three-way valve rotation detection PCB 192 in the pump body 1. The multi-way valve switching module 151 drives the transmission rod 1512 to rotate through the rotation of the motor, and the three-way valve rotation detection PCB 192 detects a magnetic signal of a magnet on the transmission rod 1512 through a different second hall switch 17, so as to determine the position of the three-way valve. Therefore, the multi-way valve switching module 151 rotates in place, the function of detecting the rotation in place is accurate and reliable, the transmission rod 1512 rotates synchronously with the motor, the magnet on the transmission rod 1512 corresponds to the second hall switch 17 to detect the position of the multi-way valve, the occupied space is small, and the safety performance is good.

Further, referring to fig. 12, a drive rod seal 1513 is fitted over the drive rod 1512. Therefore, the structure is simple, and the waterproof effect is good.

According to some embodiments of the present invention, referring to fig. 12 in combination with fig. 13, the infusion module 153 includes an infusion part 1533 extending out of the pump body 1, the infusion part 1533 has at least one telescopic part 1534 telescopic with respect to the cartridge 2, an infusion part 1533 sealing ring is provided on the infusion part 1533, the infusion part 1533 sealing ring includes at least two sub-sealing rings 1535 surrounding the telescopic part 1534 and spaced along a telescopic direction of the telescopic part 1534, and an annular groove 1536 recessed in a direction away from the telescopic part 1534 is defined between two adjacent sub-sealing rings 1535. For example, in the example of fig. 12 and 13, three telescoping portions 1534 are shown at intervals, three infusion portion 1533 sealing rings are provided on the infusion portion 1533, each infusion portion 1533 sealing ring is adapted to the shape of the corresponding telescoping portion 1534, and each infusion portion 1533 sealing ring includes two sub-sealing rings 1535 arranged around the outer circumference of the corresponding telescoping portion 1534 at intervals along the telescoping direction of the telescoping portion 1534, with an annular groove 1536 therebetween that is recessed away from the central axis of the telescoping portion 1534. Therefore, because the telescopic part 1534 moves in the working process, the infusion part 1533 including at least two sub-sealing rings 1535 is provided with the sealing rings, and the side multi-sealing layer is matched with the corresponding telescopic part 1534 to realize water prevention, so that the water prevention effect is good. Alternatively, the infusion part 1533 may be a waterproof sealing silicone member. But is not limited thereto.

Further, as shown in fig. 12, the pressure detecting module 154 includes a lift rod 1541, and a lift rod sealing ring 1542 is sleeved on the lift rod 1541. Therefore, the structure is simple, and the sealing effect is good. When detecting pressure, the infusion tube can push against the ejector rod 1541 to transmit pressure to the pressure sensor, so that the purpose of detecting pressure is achieved.

According to some embodiments of the present invention, as shown in fig. 14, the pump body 1 includes an upper housing 181 and a lower housing 182 that are fastened to each other, and a first waterproof ring 184 is disposed between the upper housing 181 and the lower housing 182. Further, a middle frame 183 is arranged on the side surface of the pump body 1, and a second waterproof ring 185 is arranged between the pump body 1 and the middle frame 183. Therefore, by adopting the combined waterproof design of the first waterproof ring 184 and the second waterproof ring 185, the waterproof performance of the whole pump body 1 is greatly improved, and the waterproof reliability is good.

During assembly, the upper shell 181 and the lower shell 182 can be buckled, the sealing rings (such as the mentioned sealing ring of the infusion part 1533, the ejector rod sealing ring 1542 and the driving rod sealing ring 1513) of the modules are assembled, and then the middle frame 183 is covered, so that the modules form an integral frame, and the detection reliability and the waterproofness are good.

Therefore, the gaps between the modules and the pump body 1 are respectively sealed by adopting the infusion part 1533 sealing ring, the ejector rod sealing ring 1542 and the transmission rod sealing ring 1513, and the pump body 1 is sealed by the first waterproof ring 184 and the second waterproof ring 185, so that the waterproof performance of the whole pump body 1 is improved.

Referring to fig. 5, 8 and 15, the bubble detecting module 152 is mounted on the upper case 181 and can be fixed by a locking structure on the upper case 181 and the lower case 182. The three-way valve rotation detection PCB 192, the bubble detection PCB 193, the pressure detection PCB 194 and the two in-place detection PCBs 195 can be clamped and fixed on the upper shell 181 through screws. Specifically, two in-place detection PCB boards 195 are mounted on the corresponding clamping structures of the upper housing 181 and the lower housing 182, and are detected by the induction of the induction magnet and the first hall switch circuit. The pressure detection module 154 is mounted on the corresponding clamping structures of the upper shell 181 and the lower shell 182 through a bracket and a pressure detection PCB 194, and transmits pressure through the PIN. The three-way valve rotation detection PCB 192 is fixed on a U-shaped clamping structure in the pump body 1 and is sensed by the magnet and the second Hall switch 17 circuit.

Two line ball boards 196 can rotate the three-way valve of arranging and detect PCB board 192, bubble detection PCB board 193, pressure detection PCB board 194 and two electric wires that detect PCB board 195 that target in place and push down fixedly, and rethread screw will line ball board 196 locks on last casing 181, can avoid the difficult, kinking scheduling problem of trapping a thread.

The infusion module 153 may be snapped and fixed to the upper housing 181 by two screws. The multi-way valve switching module 151 can be snapped into a U-shaped detent structure of the upper housing 181 and connected to a multi-way valve, e.g., a three-way valve, of the cartridge 2 via a transmission rod 1512. Specifically, for example, the motor of the multi-way valve switching module 151 may be mounted on a U-shaped locking structure of the upper housing 181, and the upper housing 181 and the lower housing 182 are fastened and fixed by damping through a silicone sleeve.

As shown in fig. 16, a Display screen 1811 is mounted on the upper case 181, and the Display screen 1811 is provided with an LCD (liquid crystal Display) foam on the front side thereof to perform buffering and dust-proof functions and an LCD support foam 1813 on the rear side thereof to perform supporting and buffering functions. The PCB assembly 191 may be fixed to the upper housing 181 by four screws, and the display screen 1811, the LCD foam 1812, and the LCD support foam 1813 are pressed tightly, so that the installation is more convenient and the fastening is more secure.

Further, referring to fig. 8, a back adhesive and a lens may be further disposed at a position corresponding to the display screen 1811 on the front side of the upper housing 181, so as to protect and prevent dust. Further, the upper housing 181 may further be provided with an LCD surround.

As shown in fig. 9, a speaker assembly 1822 is disposed in the pump body 1, a speaker sound outlet 1821 is disposed on the lower housing 182 corresponding to the speaker assembly 1822, and a dust screen 1823 and a waterproof and air-permeable membrane 1824 may be disposed between the speaker sound outlet 1821 and the speaker assembly 1822 to improve waterproof and dustproof performance. Further, foam rubber 1825 can be arranged between the waterproof breathable film 1824 and the loudspeaker assembly 1822 to improve the sound cavity effect. Wherein, loudspeaker subassembly 1822 can be fixed through support bubble cotton and screw.

When the chemotherapy pump 100 is used, after the battery 3 is installed or the power supply is connected, the medicine box 2 can be locked through the lock catches 12 on the left side and the right side, the key panel is used for on-off setting and transfusion setting, the indicator light 1814 and the display screen 1811 can display the working state, the horn component 1822 can give out alarm sound, the medicine is injected from the medicine injection port 22 on the medicine box 2, and the medicine outlet 23 on the medicine box 2 is an infusion interface.

According to the chemotherapy pump 100 provided by the embodiment of the invention, the pump body 1 and the medicine box 2 are locked by the lock catch 12, and when the pump body 1 detects that the medicine box 2 is clamped in place, the detection preparation before transfusion is started: infusion setting, bubble detection and exhaust action, and three-way valve position detection, detect infusion pressure and infusion speed when beginning the infusion, carry out the infusion setting operation through membrane switch 19, show the infusion state through display screen 1811 to indicate the warning through loudspeaker subassembly 1822 and pilot lamp 1814.

The pump body 1 is integrally designed into a waterproof structure, so that the leakage of liquid medicine can be prevented. The battery cover 142 may be opened and locked by a battery cover button 144. The multi-way valve switching module 151, the bubble detection module 152, the infusion module 153, and the pressure detection module 154 are all disposed within the middle frame 183. The whole chemotherapy pump 100 has the advantages of beautiful appearance, compact structure, strong reliability of detection and transfusion, good waterproof performance and convenient assembly and disassembly of the medicine box 2.

Other constructions and operations of the chemotherapy pump 100 according to embodiments of the invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A chemotherapy pump, comprising:

a pump body;

the medicine box, be formed with at least one cooperation groove on one of medicine box and the pump body, be equipped with on one of medicine box and the pump body between locking position and unblock position movable hasp, be equipped with on the other of medicine box and the pump body and be suitable for stretching into and cooperate at least one cooperation portion in the cooperation inslot, be formed with the locking groove on one of hasp and the cooperation portion, be equipped with locking portion on the other of hasp and the cooperation portion, when the hasp is located locking position the cooperation portion cooperate in the cooperation inslot and locking portion cooperation in the locking inslot, when the hasp is located unblock position the locking portion with locking groove break away from the cooperation so that cooperation portion is suitable for to deviate from in the cooperation inslot.

2. The chemotherapy pump of claim 1, wherein the pump body is formed with two matching grooves at intervals, the two latches are respectively arranged on two opposite sides of the pump body, one side of each latch adjacent to the corresponding matching groove is provided with the locking part which is suitable for extending into the matching groove,

the medicine box is provided with two matching parts which are suitable for being matched in the two matching grooves respectively, and one side of each matching part, which is adjacent to the corresponding lock catch, is provided with the locking groove.

3. The chemotherapy pump of claim 2, wherein each lock catch is pivotally connected to the pump body, the locking portion is disposed at an end of the corresponding lock catch adjacent to the drug box, and an elastic member is disposed between the other end of the lock catch and the pump body for normally pushing the lock catch in a direction away from the center of the pump body.

4. The chemotherapy pump of claim 2, wherein the resilient member is a spring.

5. The chemotherapy pump of claim 2, wherein at least one drug cassette in-place detection device is disposed in the pump body, and a free end of at least one of the engagement portions is provided with a sensing element adapted to be sensed by the drug cassette in-place detection device when the engagement portion is engaged in the engagement groove.

6. The chemotherapy pump of claim 5, wherein the cartridge clamping in-place detection device is a first Hall switch, and the sensing element is an induction magnet.

7. The chemotherapy pump according to any one of claims 1-6, wherein a battery compartment is provided on the pump body, a detachable battery cover is provided on the battery compartment, and the battery cover is hermetically connected to the battery compartment when the battery cover is provided on the battery compartment.

8. The chemotherapy pump of claim 7, wherein a battery cover receiving groove is formed on the outer peripheral wall of the battery cover, and an annular battery cover sealing ring is arranged in the battery cover receiving groove to seal a gap between the battery cover and the battery chamber.

9. The chemotherapy pump according to claim 7, wherein a battery cover buckle is arranged on the pump body, the battery cover buckle is arranged at one side of the battery compartment, when the battery cover is arranged on the battery compartment, the battery cover buckle locks the battery cover on the battery compartment, and the battery cover buckle is connected with the pump body in a sealing manner.

10. The chemotherapy pump of claim 9, wherein the battery cover clip has a clip portion,

the one end in battery compartment be equipped with the battery lid that the battery compartment communicates detains the holding tank, the battery lid is detained and is rotationally established in the battery lid is detained the holding tank, works as at least partly of knot portion stretches into when in the battery compartment the knot portion be suitable for with the battery lid compresses tightly in the battery compartment, works as the knot portion is located completely when the battery lid is detained in the holding tank the battery lid is suitable for the follow take out in the battery compartment.

11. The chemotherapy pump of claim 10, wherein the pump body is provided with a screw therein, the battery cover buckle is provided with a buckle column which is arranged on the pump body in a penetrating way and is in threaded connection with the screw, and at least one first battery cover buckle sealing ring is arranged between the outer peripheral surface of the buckle column and the battery cover buckle accommodating groove.

12. The chemotherapy pump of claim 11, wherein a second battery cover snap seal is provided between the screw and the pump body.

13. The chemotherapy pump of claim 1, wherein the pump body is provided with a multi-way valve switching module, a bubble detection module, an infusion module and a pressure detection module which are arranged in sequence.

14. The chemotherapy pump of claim 13, wherein a light sensing element is disposed within the pump body,

the infusion module comprises an infusion shaft, and a spoke piece matched with the light sensing element is fixedly connected to the infusion shaft to detect the rotating speed of the infusion shaft.

15. The chemotherapy pump of claim 13, wherein the drug cassette has a plurality of drug pockets therein,

the multi-way valve switching module comprises a motor and a transmission rod fixedly connected with the motor, and is characterized in that a plurality of second Hall switches in one-to-one correspondence with the medicine bags are arranged in the pump body, a magnet is arranged on the transmission rod, and when the magnet is sensed by the corresponding second Hall switches, the multi-way valve switching module is communicated with the corresponding medicine bags.

16. The chemotherapy pump of claim 15, wherein the drive rod is sleeved with a drive rod seal.

17. The chemotherapy pump of claim 13, wherein the infusion module comprises an infusion part extending out of the pump body, the infusion part comprises at least one telescopic part which is telescopic relative to the medicine box, an infusion part sealing ring is arranged on the infusion part, the infusion part sealing ring comprises at least two sub sealing rings which are arranged around the telescopic part and at intervals along the telescopic direction of the telescopic part, and an annular groove which is concave towards the direction far away from the telescopic part is defined between every two adjacent sub sealing rings.

18. The chemotherapy pump of claim 13, wherein the pressure detection module comprises a push rod, and a push rod sealing ring is sleeved on the push rod.

19. The chemotherapy pump of claim 1, wherein the pump body comprises an upper housing and a lower housing that are snap-fitted to each other, and a first waterproof ring is disposed between the upper housing and the lower housing.

20. The chemotherapy pump of claim 1, wherein the side of the pump body is provided with a middle frame, and a second waterproof ring is arranged between the pump body and the middle frame.