CN115212381B

CN115212381B - Analgesic pump

Info

Publication number: CN115212381B
Application number: CN202110411129.1A
Authority: CN
Inventors: 王宏斌; 赵海宾; 王志成; 孙新刚; 任国增; 赵瑞
Original assignee: Beijing Kellymed Co ltd
Current assignee: Beijing Kellymed Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2024-08-27
Anticipated expiration: 2041-04-16
Also published as: CN115212381A

Abstract

The application relates to an analgesic pump, which comprises an analgesic pump body, wherein a liquid storage box is detachably connected to the analgesic pump body, a transfusion tube for transfusion is connected to the liquid storage box, a control device for controlling transfusion of the transfusion tube is arranged in the analgesic pump body, the control device comprises a motor, an inlet liquid stop cam, a liquid extrusion cam and an outlet liquid stop cam, the inlet liquid stop cam, the liquid extrusion cam and the outlet liquid stop cam are sequentially arranged on an output shaft of the motor along the direction close to the motor, an inlet thrust block, a liquid extrusion thrust block and an outlet thrust block for extruding the transfusion tube are sequentially matched and used below the inlet liquid stop cam, the liquid extrusion thrust block and the outlet liquid stop cam, and a transfusion precision adjusting device is further arranged in the analgesic pump body and used for finely adjusting the relative position of the liquid extrusion thrust block and the transfusion tube. The device can be convenient for subdividing the single-period infusion quantity of the pump head of the analgesic pump and improving the effect of real-time stability of infusion.

Description

Analgesic pump

Technical Field

The application relates to the technical field of medical appliances, in particular to an analgesic pump.

Background

The analgesic pump is a liquid infusion device, can keep a stable concentration of the drug in blood, can help to achieve better analgesic treatment with less drug, can help postoperative patients to effectively relieve pain, and has wide application in medical treatment.

In the prior related technical proposal, the single-period infusion quantity of the pump head of the analgesic pump is not subdivided, which is unfavorable for the real-time stability of infusion.

Disclosure of Invention

The application provides an analgesic pump, which is convenient for subdividing the single-period infusion quantity of a pump head of the analgesic pump and improving the effect of real-time stability of infusion.

The application provides an analgesic pump which adopts the following technical scheme:

The utility model provides an analgesia pump, includes the analgesia pump body, can dismantle on the analgesia pump body and be connected with the stock solution box, the internal transfer line that is used for the infusion that is connected with of stock solution box, this internal controlling means who is used for controlling the transfer line infusion that is provided with of analgesia pump, controlling means includes the motor, sets up on the output shaft of motor and just arrange the import that sets up along the direction that is close to the motor in proper order and end liquid cam, crowded liquid cam and export end liquid cam, import end liquid cam, crowded liquid cam and export end liquid cam's below cooperation in proper order use have and are used for the extruded import thrust piece of transfer line, crowded liquid thrust piece and export thrust piece, still be provided with infusion precision adjusting device in the analgesia pump body, infusion precision adjusting device is used for finely dividing the relative position of adjusting crowded liquid thrust piece and transfer line.

Through adopting above-mentioned technical scheme, adopt import to stop the liquid cam, crowded liquid cam and export to stop mutually supporting between the liquid cam, exert effort to import thrust piece, crowded liquid thrust piece and export thrust piece in proper order, extrude the transfer line in turn, infusion precision adjusting device can finely divide pump head single cycle infusion volume, combines adjusting device position and software control, can make the output more steady.

The present application may be further configured in a preferred example to: the infusion precision adjusting component is arranged between the outlet liquid stopping cam and the output shaft of the motor, the infusion precision adjusting component comprises a signal transmitter, a signal receiver and a code disc, the signal transmitter and the signal receiver are arranged in the analgesic pump body at intervals, the code disc is arranged between the signal transmitter and the signal receiver, the signal receiver is electrically connected with the motor, the code disc is sleeved on the output shaft of the motor and fixedly connected with the output shaft, a plurality of signal penetrating holes for the signal of the signal transmitter to penetrate are formed in the code disc, and the signal penetrating holes are arranged in a fan shape on the code disc.

Through adopting above-mentioned technical scheme, adopt signal transmitter transmission signal, the signal is received by signal receiver after passing the signal through hole on the code wheel, signal receiver receives the back and acts on the motor, thereby come the turned angle of the output shaft of control motor, the signal through the code wheel that turns over between signal transmitter and signal receiver pierces through the hole check number, thereby indirect come the angle of control motor's output shaft pivoted at every turn, because crowded liquid cam sets up on the output shaft of motor, crowded liquid cam rotates along with the output shaft rotation of motor, then make infusion precision adjusting device finely divide and adjust the relative position of crowded liquid ejector pad and transfer line.

The present application may be further configured in a preferred example to: the intervals between any two adjacent signal penetrating holes are not equal.

Through adopting above-mentioned technical scheme, through setting the interval between two arbitrary adjacent signal penetration holes to inequality for the code wheel is when rotating between signal transmitter and signal receiver, and the signal interval that signal receiver received at every turn is inequality, and then makes the output shaft of motor at every turn also different, and the angle of carrying crowded liquid cam pivoted is also different at the output shaft of motor at every turn under the different circumstances of angle, and the angle is different, but extrusion pipeline sectional area changes the same, thereby single cycle infusion volume evenly subdivides.

The present application may be further configured in a preferred example to: the back of analgesia pump body has seted up the grafting chamber, be connected with the grafting piece with grafting chamber looks adaptation on the tip of reservoir box, rotatory being provided with rotatory lock button on the lateral wall of analgesia pump body, the locking structure who cooperatees with rotatory lock button to use has been seted up on the grafting piece.

Through adopting above-mentioned technical scheme, align the grafting piece on the receiver tip with the grafting chamber on the analgesia pump body back, peg graft the grafting piece in the grafting intracavity afterwards, realize the equipment between receiver and the analgesia pump body, cooperate through the locking structure on rotatory knob and the grafting piece for equipment between receiver and the analgesia pump body is stable.

The present application may be further configured in a preferred example to: the locking structure comprises a mounting block fixedly arranged on the side wall of the insertion sheet, a mounting notch is formed in the mounting block, a locking part is fixedly arranged on the mounting notch, a rotating channel for rotating the rotary lock knob is formed between the locking part and the side wall of the mounting notch, a yielding notch for the locking part to enter is formed in the outer wall of the rotary lock knob, the end part of the rotary lock knob at the yielding notch is rotated to enter the rotating channel, and the locking part enters from the yielding notch and is mutually clamped with the rotary lock knob.

Through adopting above-mentioned technical scheme, rotate the rotatory lock and turn round, rotate to the rotation lock turn round when the breach of stepping down on the breach corresponds with the locking part on the installation piece, continue to rotate the rotatory lock turn round, locking part enters into in the rotatory lock turn round from stepping down the breach this moment, enters into in the rotatory lock turn round through locking part and carries out the joint to realize the joint between reservoir box and the analgesia pump body stable.

The present application may be further configured in a preferred example to: the utility model discloses a analgesia pump, including analgesia pump body, rotatory lock is twisted and is provided with the locking subassembly that is used for locking rotatory lock, locking subassembly includes that one end sets firmly rotatory lock is twisted, the other end extends to the inside joint post of analgesia pump body, rotatory lock is twisted and is provided with the activity on the opposite one side of joint post and wears to locate rotatory lock, the pressing post of joint post, pressing down to have set firmly the butt dish on the outer wall after the post extends the joint post, be provided with reset spring between butt dish and the mounting bracket, the draw-in groove has been seted up on the tip that rotatory lock was twisted to the joint post, the clamping piece in the draw-in groove has been set firmly to the card on the pressing post outer wall, reset spring inlays in the draw-in groove when its natural state.

Through adopting above-mentioned technical scheme, through pressing the post to pressing, make the post that presses remove in the pump body that eases pain in, the post that presses can deviate from the draw-in groove on the joint post in the time of removing, rotatory lock button can continue to rotate after deviate from, the post that presses still can extrude reset spring through the butt dish when removing, make reset spring carry out elastic deformation, when rotatory lock button rotates back to original position department again, release the effort to pressing the post, press the post and press the post automatically outward to remove outside the pump body that eases pain under reset spring's elasticity effect, and inlay again in the draw-in groove with the fixture block, thereby realize the locking to rotatory lock button.

The present application may be further configured in a preferred example to: the analgesia pump is characterized in that a display screen is further arranged on the analgesia pump body, and a power supply module for displaying the display screen is arranged on the analgesia pump body.

By adopting the technical scheme, the setting of the display screen can grasp the infusion quantity of the infusion tube in real time, so that the infusion quantity of the infusion tube can be conveniently regulated.

The present application may be further configured in a preferred example to: the utility model discloses a analgesia pump, including analgesia pump body, power module, the surface indent of analgesia pump body has the holding tank, power module is including installing the battery in the holding tank, analgesia pump body is provided with the capping in the notch position department of holding tank, be provided with the locking subassembly that locks the capping on the analgesia pump body.

Through adopting above-mentioned technical scheme, adopt the battery to supply power to the display screen, be convenient for change the battery, install the battery in the holding tank simultaneously, cover the holding tank through the capping, can protect the battery, avoid deviating from in the holding tank at the in-process battery that removes, satisfy waterproof requirement simultaneously.

The present application may be further configured in a preferred example to: the analgesic pump body is provided with a stepped groove at the position of the analgesic pump body, which is close to the accommodating groove, the locking assembly comprises a sliding block which is connected in the stepped groove in a sliding way, a locking rod, a compression elastic piece, a locking hole and a locking hole, wherein one end of the locking rod is arranged on the locking rod in a penetrating way, the locking rod extends towards the groove bottom direction of the stepped groove, the compression elastic piece is sleeved on the locking rod and is positioned between the sliding block and the groove bottom of the stepped groove, the locking rod is fixedly connected with the sliding block, and the locking hole is matched with the locking rod in use.

Through adopting above-mentioned technical scheme, through pressing the locking lever, make the locking lever remove toward the ladder inslot, the locking lever slides in the ladder inslot through the slider and extrudees compression elastic component when removing, make compression elastic component take place elastic deformation, when the locking lever remove to the capping can lock on the holding tank, make the locking hole on the capping correspond with the position of locking lever this moment, the tip of locking lever is automatic from the ladder inslot popping out and peg graft in the locking hole under compression elastic component's elasticity effect, thereby realize the locking to the capping, dual locking structure, avoid the maloperation, lead to the unexpected whereabouts of reservoir cartridge and analgesia pump body, delay treatment.

In summary, the present application includes at least one of the following beneficial technical effects:

the inlet liquid stopping cam, the liquid extruding cam and the outlet liquid stopping cam are matched with each other, acting force is applied to the inlet liquid stopping block, the liquid extruding pushing block and the outlet liquid stopping block in sequence, the infusion tube is extruded alternately, the infusion precision adjusting device can subdivide the single-period infusion quantity of the pump head, and the output is stable by combining the position of the adjusting device and software control.

Drawings

Fig. 1 is a schematic structural view of an analgesic pump according to an embodiment of the present application;

Fig. 2 is an exploded view of the analgesic pump body and the cartridge of the present application;

FIG. 3 is a schematic diagram of the internal structure in an embodiment of the application;

FIG. 4 is a schematic diagram of a display control device according to an embodiment of the present application;

fig. 5 is a schematic view showing an internal structure of an analgesic pump body in an embodiment of the present application;

Fig. 6 is an enlarged view of a portion a in fig. 5;

fig. 7 is a schematic structural view of an analgesic pump body in an embodiment of the application;

FIG. 8 is a schematic explosion diagram showing the locking assembly, rotary lock knob and analgesic pump body in an embodiment of the application;

FIG. 9 is a schematic view showing a partial structure of the inside of the analgesic pump in the embodiment of the present application;

fig. 10 is an enlarged view of a portion B in fig. 9;

fig. 11 is an exploded view showing the slot cover, the locking assembly and the analgesic pump in an embodiment of the application.

In the figure, 1, an analgesic pump body; 11. an insertion end; 111. a first relief hole; 112. a second relief hole; 113. a third relief hole; 114. a support frame; 1141. a guide groove; 1142. a sliding groove; 115. hiding the groove; 116. a receiving chamber; 12. an abutting plate; 121. a bearing sleeve; 13. a top plate; 14. a plug cavity; 15. a display screen; 16. a first button; 17. a placement groove; 18. a placement groove; 19. a rotation hole; 20. a mounting frame; 201. a cavity; 2011. a receiving groove; 2012. a stepped flange; 202. a stepped groove; 2021. hoisting the frame; 2022. a mounting plate; 2. a liquid storage box; 21. a receiving end; 22. an infusion tube; 23. a plug-in piece; 31. a motor; 311. a coupling; 3111. a rotation shaft; 32. an inlet liquid stopping cam; 33. a liquid squeezing cam; 331. a shaft sleeve; 34. an outlet liquid stop cam; 35. an inlet thrust block; 351. an outer frame; 3511. an abutting portion; 3512. a reverse hanging part; 352. an inner frame; 3521. an abutment groove; 3522. a movable notch; 3523. a clamping and pressing part; 3531. an upper connecting block; 3532. a lower connecting block; 36. an outlet thrust block; 37. extruding liquid pushing blocks; 371. a sliding part; 372. an extrusion part; 373. a pressing part; 41. a signal transmitter; 42. a signal receiver; 43. a code wheel; 431. a signal penetration hole; 5. a pressure detector; 61. a bubble detection probe; 62. a reflection base; 7. rotating the lock knob; 71. a locking ring; 711. a relief notch; 72. a toggle rod; 81. a mounting block; 811. a mounting notch; 82. a locking part; 83. a rotating channel; 91. a clamping column; 911. a clamping groove; 92. an abutment plate; 93. a return spring; 94. a clamping block; 95. pressing the column; 951. a second button; 1011. a travel base; 1012. an elastic sheet; 102. a battery; 103. a slot cover; 1031. a locking hole; 1041. a sliding block; 1042. a locking lever; 1043. compressing the second spring.

Detailed Description

The present application will be described in further detail with reference to the accompanying drawings.

The embodiment of the application discloses an analgesic pump, referring to fig. 1 and 2, comprising an analgesic pump body 1 and a liquid storage box 2, wherein an insertion end 11 is connected to the end part of the analgesic pump body 1 in an extending way, a receiving end 21 matched with the insertion end 11 is arranged on the end part of the liquid storage box 2, and the insertion end 11 of the analgesic pump body 1 is inserted into the receiving end 21 of the liquid storage box 2, so that the assembly between the liquid storage box 2 and the analgesic pump body 1 is realized.

Referring to fig. 2 and 3, an infusion tube 22 is disposed at the bottom of the receiving end 21, an inlet communicated with the inside of the liquid storage box 2 is disposed at the bottom of the receiving end 21, one end of the infusion tube 22 extends into the liquid storage box 2 from the position of the inlet, and the other end of the infusion tube 22 penetrates out from the side wall of the receiving end 21.

Referring to fig. 3 and 4, a control device is provided in the analgesic pump body 1, the control device is used for controlling infusion of the infusion tube 22, the control device comprises a motor 31, an inlet liquid stopping cam 32, a liquid squeezing cam 33 and an outlet liquid stopping cam 34, the motor 31 is fixedly installed in the analgesic pump body 1, an output shaft of the motor 31 is horizontally arranged, a coupler 311 is fixedly arranged on the output shaft of the motor 31, a rotating shaft 3111 is fixedly arranged on one side of the coupler 311 away from the motor 31, and the rotating shaft 3111, the coupler 311 and the output shaft of the motor 31 are coaxially arranged.

Referring to fig. 4 and 5, an abutment plate 12 is fixedly connected between opposite side walls in the analgesic pump body 1, a bearing sleeve 121 is fixedly arranged above the abutment plate 12, and one end of a rotating shaft 3111, which is far away from the coupler 311, is sleeved in the bearing sleeve 121 and is rotatably connected with the bearing sleeve 121.

Referring to fig. 4 and 5, the inlet liquid stop cam 32 and the outlet liquid stop cam 34 are fixedly mounted on the rotating shaft 3111 and are arranged in sequence, the outlet liquid stop cam 34 is located between the inlet liquid stop cam 32 and the motor 31, the inlet liquid stop cam 32 and the outlet liquid stop cam 34 are both in a half sector shape, and the cambered surface ends of the two liquid stop cams mounted on the rotating shaft 3111 are oppositely arranged. A shaft sleeve 331 is arranged between the inlet liquid stopping cam 32 and the outlet liquid stopping cam 34, the shaft sleeve 331 and the rotary shaft 3111 are coaxially arranged, the liquid extruding cams 33 are arranged in two and are fixedly arranged on the outer wall of the shaft sleeve 331, and the shaft sleeve 331 is sleeved on the rotary shaft 3111 and is fixedly connected with the rotary shaft 3111.

Referring to fig. 3 and 4, the control device further includes an inlet thrust block 35, a liquid squeezing thrust block 37 and an outlet thrust block 36, wherein the upper ends of the inlet thrust block 35, the liquid squeezing thrust block 37 and the outlet thrust block 36 are respectively matched with and abutted against the inlet liquid stopping cam 32, the liquid squeezing cam 33 and the outlet liquid stopping cam 34, and the lower ends of the inlet thrust block 35, the liquid squeezing thrust block 37 and the outlet thrust block 36 are respectively abutted against the infusion tube 22.

The movement process of the transfusion is realized by the elastic deformation of the transfusion tube 22 by the reciprocating pushing and extrusion of the inlet thrust block 35, the extrusion liquid thrust block 37 and the outlet thrust block 36.

When the infusion tube 22 infuses outwards:

The inlet liquid stop cam 32 rotates to the cambered surface end of the inlet liquid stop cam to press the inlet thrust block 35, so that the inlet thrust block 35 is pressed downwards on the infusion tube 22, the position of the infusion tube 22 below the inlet thrust block 35 is in a compression state, at the moment, the cambered surface end of the outlet liquid stop cam 34 has no pressing acting force on the outlet thrust block 36, and the outlet thrust block 36 is sprung upwards under the elastic action of the infusion tube 22; the two are kept still, and the liquid squeezing push block 37 moves downwards under the action of the top pressure of the liquid squeezing cam 33 to squeeze the infusion tube 22, squeeze the liquid of the infusion tube 22 to the outlet end and output the liquid outwards.

When the infusion tube 22 needs to aspirate fluid:

The inlet liquid stop cam 32 has no pressing force on the inlet thrust block 35, the inlet thrust block 35 is in a relaxed state, and the inlet thrust block 35 is sprung upwards under the elastic action of the infusion tube 22; the outlet liquid stop cam 34 pushes against the outlet stop block 36, so that the outlet stop block 36 is pushed downwards against the infusion tube 22, and the outlet stop block 36 is in a compressed state; the two are kept still, the squeezing cam 33 squeezes the squeezing push block 37 to disappear, the squeezing push block 37 moves upwards, the infusion tube 22 is changed from a pressing state to a releasing state, and the liquid in the liquid storage box 2 is sucked into the infusion tube 22 by forming negative pressure through the self resilience force of the infusion tube 22.

Referring to fig. 4 and 5, the insertion end 11 is communicated with the inside of the analgesic pump body 1, the end of the insertion end 11 is provided with a first abdicating hole 111, a second abdicating hole 112 and a third abdicating hole 113 which are used for the inlet thrust block 35, the liquid squeezing thrust block 37 and the outlet thrust block 36 to penetrate out, the lower end of the inlet thrust block 35 slides out of the first abdicating hole 111 and then is propped against the infusion tube 22, the lower end of the liquid squeezing thrust block 37 slides out of the second abdicating hole 112 and then is propped against the infusion tube 22, and the lower end of the outlet thrust block 36 slides out of the third abdicating hole 113 and then is propped against the infusion tube 22.

Referring to fig. 3 and 4, two opposite side walls in the insertion end 11 are respectively and fixedly provided with a supporting frame 114, a space is reserved between the two supporting frames 114, and the inlet thrust block 35, the outlet thrust block 36 and the liquid extrusion push block 37 are all arranged between the two supporting frames 114 in a sliding manner. The inlet thrust block 35 and the outlet thrust block 36 have the same structure, and only the inlet thrust block 35 is described in detail in this document, the inlet thrust block 35 includes an outer frame 351, an inner frame 352 and a spring assembly, two opposite sides of the two support frames 114 are respectively provided with a guide groove 1141, the notches of the two guide grooves 1141 are oppositely arranged, and the outer wall of the outer frame 351 is slidably connected in the guide grooves 1141.

Referring to fig. 4 and 5, the outer frame 351 is provided in a U-shape, and an open end of the outer frame 351 faces away from the inlet liquid stopper cam 32, and the inlet liquid stopper cam 32 acts on an end of the outer frame 351 facing away from the open end thereof when pressed down. The inner frame 352 is located inside the outer frame 351, the inner frame 352 is slidably disposed inside the outer frame 351, and the outer frame 351 has abutting portions 3511 extending opposite to the two ends thereof near the opening end, and the abutting portions 3511 abut on the ends of the insertion end 11. One end of the inner frame 352, which is close to the opening end of the outer frame 351, extends out of the outer frame 351 from two abutting portions 3511 and penetrates through the first abdicating hole 111, two opposite side walls of the inner frame 352 are respectively provided with abutting grooves 3521, the two abutting grooves 3521 are arranged in one-to-one correspondence with the two abutting portions 3511, and the abutting portions 3511 are inserted into the abutting grooves 3521. The outer frame 351 is provided with an inverted hanging part 3512 integrally formed on the bottom wall opposite to the opening end, the inverted hanging part 3512 is in an inverted T shape, the end of the inner frame 352 positioned in the outer frame 351 is provided with a movable notch 3522 in a U shape, the opening end of the movable notch 3522 faces the inverted hanging part 3512, and the inverted hanging part 3512 extends into the inner frame from the opening end of the movable notch 3522. The two ends of the opening end of the movable notch 3522 extend towards the middle to form a clamping and pressing part 3523, and the clamping and pressing part 3523 is pressed against two sides of the bottom of the hanging part 3512.

Referring to fig. 4, the spring assembly is disposed in the movable gap 3522, and the spring assembly includes an upper connection block 3531, a lower connection block 3532 and a first compression spring (not shown in the drawings), wherein the upper connection block 3531 is fixedly connected to the lower end of the hanging portion 3512, the lower connection block 3532 is fixedly connected to the movable gap 3522 at the bottom opposite to the gap, the first compression spring is disposed between the upper connection block 3531 and the lower connection block 3532, and the upper end of the first compression spring is connected to the upper connection block 3531 and the lower end is connected to the lower connection block 3532.

Referring to fig. 4 and 5, when the cambered end of the inlet liquid stop cam 32 presses the end of the outer frame 351, the outer frame 351 is abutted in the abutment groove 3521 of the inner frame 352 through the abutment portion 3511, so that the inner frame 352 is moved down in the first abdication hole 111 and the infusion tube 22 is extruded, and meanwhile, the inverted portion 3512 moves down in the movable notch 3522 and extrudes the compression spring, so that the outer frame 351 is slowly moved down with the inner frame 352, and the extrusion force on the infusion tube 22 is reduced.

Referring to fig. 4 and 5, the liquid squeezing push block 37 includes a sliding portion 371, a pressing portion 373 and a squeezing portion 372, the sliding portion 371 is located between the two support frames 114, the sliding portion 371 is set to be U-shaped, an opening end of the sliding portion 371 faces the liquid squeezing cam 33, sliding grooves 1142 are respectively formed on opposite side walls of the two support frames 114, and opposite side walls of the sliding portion 371 are slidably connected in the sliding grooves 1142. Dodging grooves are formed in the two end portions of the sliding portion 371 respectively, the dodging grooves are matched with the shaft sleeve 331, the shaft sleeve 331 is movably arranged in the dodging grooves in the end portion of the sliding portion 371, and the two liquid squeezing cams 33 are located in the opening end of the sliding portion 371. The pressing portion 372 is fixedly connected to a side of the sliding portion 371 facing away from the open end thereof, and an end of the pressing portion 372 facing away from the sliding portion 371 is pierced from the position of the third relief hole 113.

Referring to fig. 4 and 5, the pressing portion 373 is located in an opening end of the sliding portion 371, a lower end of the pressing portion 373 is fixedly connected to a bottom wall in the opening end of the sliding portion 371, and an upper end of the pressing portion 373 abuts against cambered surface ends of the two squeeze cams 33. The cambered end stroke of the liquid squeezing cam 33 is smaller than the cambered end strokes of the inlet liquid stopping cam 32 and the outlet liquid stopping cam 34, so that the inlet liquid stopping cam 32 still applies a force to the inlet thrust block 35 when the liquid squeezing cam 33 applies a force to the pressing portion 373.

Referring to fig. 5 and 6, an infusion precision adjusting device is further disposed in the analgesic pump body 1, the infusion precision adjusting device is used for adjusting extrusion force of the extrusion liquid pushing block 37 on the infusion tube 22, the infusion precision adjusting device is disposed between the outlet liquid stopping cam 34 and the coupler 311, the infusion precision adjusting assembly comprises a signal emitter 41, a signal receiver 42 and a code disc 43, a top plate 13 is horizontally and fixedly disposed on the inner wall of the analgesic pump body 1, the top plate 13 is located above the outlet liquid stopping cam 34, the signal emitter 41 and the signal receiver 42 are fixedly mounted on the lower surface of the top plate 13, the signal emitter 41 and the signal receiver 42 are arranged at intervals along an axis direction parallel to the shaft sleeve 331, and the signal receiver 42 is electrically connected with the motor 31.

Referring to fig. 4 and 6, the code wheel 43 is provided in a disc shape, a sleeve hole is formed in the middle of the code wheel 43, the code wheel 43 is sleeved on the rotating shaft 3111 and fixedly connected with the rotating shaft 3111, and the code wheel 43 is located between the signal emitter 41 and the signal receiver 42. The code disc 43 is provided with a plurality of signal penetrating holes 431, the plurality of signal penetrating holes 431 are arranged in a fan shape on the code disc 43, the circle centers of the fan shape are overlapped with the circle centers of the code disc 43, the distances between two adjacent signal penetrating holes 431 are not equal, and the distance between two adjacent signal penetrating holes 431 on the edge is larger than the distance between any other two adjacent signal penetrating holes 431. The first and last cell signal penetration holes represent the start and end points of the squeeze bulb 37, and the penetration holes 431 of the code wheel 43 are subdivided from the start to the end positions. Through the infusion precision adjusting device, infusion can be more stable.

Referring to fig. 2 and 5, the analgesic pump body 1 is provided with a plugging cavity 14 inward at the end connected with the insertion end 11, a plugging piece 23 is fixedly connected to the edge of the end of the receiving end 21 on the liquid storage box 2, the plugging piece 23 is matched with the plugging cavity 14, and when the receiving end 21 of the liquid storage box 2 is sleeved on the insertion end 11 of the analgesic pump body 1, the plugging piece 23 is plugged in the plugging cavity 14.

Referring to fig. 3 and 7, the pressure detector 5 is provided at the end of the insertion end 11, the pressure detector 5 detects the pressure of the infusion tube 22 during the infusion process, the bubble detection probe 61 is further provided at the end of the insertion end 11, the reflection seat 62 is fixedly provided in the end of the receiving end 21, the infusion tube 22 is inserted into the reflection seat 62, and the bubble detection probe 61 and the reflection seat 62 cooperate with each other to detect the bubble in the infusion tube 22.

Referring to fig. 2 and 7, a display screen 15 is provided on the front surface of the analgesic pump body 1, and a row of buttons 16 is provided below the display screen 15. The analgesic pump body 1 is symmetrically provided with rotary lock buttons 7 on the side walls of the analgesic pump body, which are positioned on the two sides of the display screen 15, and the plug sheet 23 is provided with a locking structure which is matched with the rotary lock buttons 7 on the analgesic pump body 1.

Referring to fig. 5 and 8, a placement groove 17 is formed in the side wall of the analgesic pump body 1, the placement groove 17 is a circular groove, the bottom of the placement groove 17 is communicated with the insertion cavity 14 of the analgesic pump body 1, the rotary lock button 7 is matched with the placement groove 17 and is installed in the placement groove 17, and the rotary lock button 7 is rotatably arranged in the placement groove 17. A locking ring 71 is fixedly arranged on one side of the rotary lock button 7 facing the bottom of the placement groove 17, and the locking ring 71 and the rotary lock button 7 are concentric.

Referring to fig. 2 and 8, the locking structure includes a mounting block 81 fixedly disposed on an end portion of the insertion piece 23, and a mounting notch 811 disposed in a quarter arc shape is formed at a vertex angle position of the mounting block 81, and an end portion of the mounting notch 811 is concavely disposed as an arc surface. The mounting notch 811 is fixedly provided with a locking portion 82, and a rotation passage 83 into which the lock ring 71 rotates is formed between the locking portion 82 and the arc-shaped side wall of the mounting notch 811. The outer wall of the locking ring 71 is provided with a yielding gap 711, the yielding gap 711 is used for the locking part 82 to enter the locking ring 71, the end part of the rotary lock knob 7 at the yielding gap 711 rotates to enter the rotary channel 83, and the locking part 82 enters from the yielding gap 711 and is clamped with the locking ring 71.

Referring to fig. 2 and 8, a toggle rod 72 is fixedly arranged on the outer wall of the rotary lock knob 7, a placing groove 18 matched with the toggle rod 72 is formed on the outer wall of the analgesic pump body 1, and the toggle rod 72 is positioned in the placing groove 18. By pulling the tap lever 72, the rotary knob 7 is rotated in the setting groove 17, the lock ring 71 is controlled to rotate in the rotary passage 83 by the rotation of the rotary knob 7, and the lock portion 82 and the lock ring 71 are engaged with each other.

Referring to fig. 8, 9 and 10, the analgesic pump body 1 is provided with a locking assembly, the locking assembly is used for limiting the rotation of the rotary lock knob 7, a rotary hole 19 communicated to the inside of the analgesic pump body 1 is formed in the bottom of the placement groove 17, and the rotary hole 19 is a circular hole. The inside mounting bracket 20 that has set firmly of analgesia pump body 1, mounting bracket 20 set up to the U type, and the open end of mounting bracket 20 is towards the position department of rotation hole 19 and corresponding with rotation hole 19.

Referring to fig. 8 and 10, the lock assembly includes a pressing post 95, an abutment plate 92, a return spring 93, a lock block 94, and a lock post 91, wherein an end of the lock post 91 is fixedly connected to an end of the rotary lock knob 7 having the lock ring 71, and the other end of the lock post 91 is sleeved in the rotation hole 19 and is rotatably connected in the rotation hole 19. One end of the pressing column 95 sequentially movably penetrates through the rotary lock button 7, the clamping column 91 and the rotation hole 19 from the outer side of the rotary lock button 7 and then extends into the analgesic pump body 1, and a button two 951 is fixedly arranged at one end of the pressing column 95, which is positioned outside the rotary lock button 7. The abutment plate 92 is located between the mounting frame 20 and the rotation hole 19 and the abutment plate 92 is fixedly connected to the outer wall of the pressing post 95, and the abutment plate 92 is coaxially arranged with the pressing post 95. The reset spring 93 is sleeved on the pressing column 95 and is positioned between the mounting frame 20 and the abutting plate 92, one end of the reset spring 93 is fixedly connected with the abutting plate 92, and the other end of the reset spring 93 is fixedly connected with the bottom wall in the opening end of the mounting frame 20.

Referring to fig. 8 and 10, a clamping groove 911 is formed in the end portion of the clamping post 91 located in the rotation hole 19, a clamping block 94 is matched with the clamping groove 911, the clamping block 94 is fixedly connected to the outer wall of the pressing post 95, and the clamping block 94 is embedded in the clamping groove 911 when the return spring 93 is in a natural state. By pressing the pressing column 95, the pressing column 95 is pressed into the analgesic pump body 1, the pressing column 95 moves out of the locking groove 911 of the locking column 91 with the locking block 94, and after the release, the rotary lock 7 can rotate in the setting groove 17.

Referring to fig. 2 and 7, a hidden groove 115 is formed in a side wall of the insertion end 11, a travel switch is installed in the hidden groove 115, the travel switch comprises a travel base 1011 fixedly installed in the hidden groove 115, an outer wall of the travel base 1011 is flush with a side wall of the insertion end 11, an elastic piece 1012 which is arranged outwards in an inclined manner is fixedly arranged on the outer wall of the travel base 1011, a containing cavity 116 for containing the elastic piece 1012 is formed in the side wall of the insertion end 11, the containing cavity 116 is communicated with the hidden groove 115, and when the insertion piece 23 is inserted into the insertion cavity 14, an end part of the liquid storage box 2 extrudes the elastic piece 1012 to deform the elastic piece 1012 into the containing cavity 116, so that a travel of the insertion piece 23 inserted into the insertion cavity 14 can be mastered.

Referring to fig. 7 and 11, a cavity 201 is formed in the side of the analgesic pump body 1 facing away from the display screen 15 and located at the edge thereof, a receiving groove 2011 is formed in the bottom of the cavity 201, and a stepped flange 2012 is formed between the notch of the receiving groove 2011 and the bottom wall of the cavity 201. A power supply module is installed in the accommodating groove 2011, and the power supply module is used for displaying the number of the display screen 15, and comprises a pair of battery 102 groups installed in the accommodating groove 2011. The analgesic pump body 1 is provided with a groove cover 103 at the opening position of the cavity 201, the groove cover 103 is buckled on the step flange 2012,

Referring to fig. 11, a locking component for locking the slot cover 103 is disposed on the analgesic pump body 1, a stepped slot 202 is formed in the analgesic pump body 1 at a position close to the cavity 201, the locking component comprises a sliding block 1041, a locking rod 1042 and a compression elastic member, a lifting frame 2021 is mounted in the stepped slot 202, the lifting frame 2021 is in a U-shaped arrangement, an opening end of the lifting frame 2021 faces a notch position of the stepped slot 202, a mounting plate 2022 located at the notch position of the stepped slot 202 is fixedly arranged at an opening end of the lifting frame 2021, and the sliding block 1041 is located in the lifting frame 2021 and is slidably arranged. One end of the locking rod 1042 is movably arranged on the mounting plate 2022 and the sliding block 1041 in sequence and extends into the lifting frame 2021. The compression elastic piece comprises a compression spring II 1043, the compression spring II 1043 is located in the lifting frame 2021 and sleeved on the locking rod 1042, one end of the compression spring II 1043 is fixedly connected with the bottom wall in the opening end of the lifting frame 2021, and the other end of the compression spring II is fixedly connected with the sliding block 1041. The slot cover 103 is provided with a locking hole 1031 matched with the locking rod 1042, and one end of the locking rod 1042 outside the hoisting frame 2021 is ejected into the locking hole 1031.

The implementation principle of the embodiment is as follows: the rotation angle of the motor 31 can be controlled according to the requirement of single infusion amount, the signal transmitted by the signal transmitter 41 passes through the plurality of signal penetrating holes 431 and then is received by the signal receiver 42 and fed back to the motor 31, so that the driving of the motor 31 is stopped, at the moment, the output shaft of the motor 31 is screwed to a specific angle with the rotating shaft 3111, then the extruding force applied to the infusion tube 22 by the extruding push block 37 by the extruding cam 33 is regulated to a proper force by the rotating shaft 3111, and therefore, the number of the signal penetrating holes 431 passing through the signal transmitter 41 and the signal receiver 42 by the code disc 43 is regulated, so that the infusion precision regulating device can subdivide the single-period infusion amount of the pump head, and the output can be more stable by combining the position of the regulating device and software control.

The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. An analgesic pump comprising an analgesic pump body (1), characterized in that: the device comprises an analgesic pump body (1), wherein a liquid storage box (2) is detachably connected to the analgesic pump body (1), an infusion tube (22) for infusion is connected to the liquid storage box (2), a control device for controlling the infusion of the infusion tube (22) is arranged in the analgesic pump body (1), the control device comprises a motor (31), an inlet liquid stop cam (32), a liquid extrusion cam (33) and an outlet liquid stop cam (34) which are arranged on an output shaft of the motor (31) in sequence along the direction close to the motor (31), and an inlet liquid stop block (35), a liquid extrusion push block (37) and an outlet liquid stop block (36) for extruding the infusion tube (22) are sequentially matched below the inlet liquid stop cam (32), the liquid extrusion cam (33) and the outlet liquid stop cam (34), and an infusion precision adjusting device is further arranged in the analgesic pump body (1) and used for finely adjusting the relative positions of the liquid extrusion push block (37) and the infusion tube (22);

The infusion precision adjusting device is arranged between the outlet liquid stopping cam (34) and the output shaft of the motor (31), the infusion precision adjusting device comprises a signal emitter (41), a signal receiver (42) and a code disc (43) arranged between the signal emitter (41) and the signal receiver (42), the signal emitter is arranged in the analgesic pump body (1) at intervals, the signal receiver (42) is electrically connected with the motor (31), the code disc (43) is sleeved on the output shaft of the motor (31) and fixedly connected with the output shaft, a plurality of signal penetrating holes (431) for the signals of the signal emitter (41) to penetrate are formed in the code disc (43), and the plurality of signal penetrating holes (431) are arranged in a fan-shaped arrangement on the code disc (43);

The back of the analgesic pump body (1) is provided with an inserting cavity (14), the end part of the liquid storage box (2) is connected with an inserting piece (23) matched with the inserting cavity (14), the side wall of the analgesic pump body (1) is rotatably provided with a rotary lock button (7), and the inserting piece (23) is provided with a locking structure matched with the rotary lock button (7);

The locking structure comprises a mounting block (81) fixedly arranged on the side wall of the inserting piece (23), a mounting notch (811) is formed in the mounting block (81), a locking part (82) is fixedly arranged on the mounting notch (811), a rotating channel (83) for rotating a rotary lock knob (7) is formed between the locking part (82) and the side wall of the mounting notch (811), a yielding notch (711) for the locking part (82) to enter is formed in the outer wall of the rotary lock knob (7), the end part of the rotary lock knob (7) at the yielding notch (711) rotates to enter the rotating channel (83), and the locking part (82) enters from the yielding notch (711) and is mutually clamped with the rotary lock knob (7).

2. An analgesic pump as claimed in claim 1 wherein: the pitches between any adjacent two of the signal penetration holes (431) are not equally set.

3. An analgesic pump as claimed in claim 1 wherein: the utility model discloses a analgesia pump, including analgesia pump body (1), including rotatory lock button (7), rotatory lock button (7) are connected with each other through the connection, inside mounting bracket (20) has set firmly of analgesia pump body (1), be provided with on rotatory lock button (7) inside locking subassembly that is used for locking rotatory lock button (7), the other end extends to inside joint post (91) of analgesia pump body (1) including one end set firmly on rotatory lock button (7), be provided with movable clamp post (95) of locating rotatory lock button (7), joint post (91) on one side opposite with joint post (91), be provided with butt dish (92) on the outer wall after pressing post (95) extend joint post (91), be provided with reset spring (93) between butt dish (92) and mounting bracket (20), joint post (91) are kept away from on the tip of rotatory lock button (7) and have been seted up draw-in groove (911), clamp block (94) in the draw-in groove is set firmly on pressing post (95) outer wall, clamp block (911) are located under its natural state to reset spring (93).

4. An analgesic pump as claimed in claim 1 wherein: the analgesia pump is characterized in that a display screen (15) is further arranged on the analgesia pump body (1), and a power supply module for displaying the display screen (15) is arranged on the analgesia pump body (1).

5. An analgesic pump as claimed in claim 4 wherein: the utility model discloses a analgesia pump, including analgesia pump body (1), including power module, analgesia pump body (1) surface indent has holding tank (2011), power module is including installing battery (102) in holding tank (2011), analgesia pump body (1) is provided with capping (103) in the notch position department of holding tank (2011), be provided with on analgesia pump body (1) and carry out the locking subassembly of locking to capping (103).

6. An analgesic pump as claimed in claim 5 wherein: the analgesic pump comprises an analgesic pump body (1), wherein a stepped groove (202) is formed in the position, close to an accommodating groove (2011), of the analgesic pump body, the locking assembly comprises a sliding block (1041) which is connected in the stepped groove (202) in a sliding mode, a locking rod (1042) with one end penetrating through the sliding block (1041) and extending towards the groove bottom of the stepped groove (202), and a compression elastic piece which is sleeved on the locking rod (1042) and located between the sliding block (1041) and the groove bottom of the stepped groove (202), the locking rod (1042) is fixedly connected with the sliding block (1041), and a locking hole (1031) matched with the locking rod (1042) is formed in a groove cover (103).