Portable analgesia pump

Abstract

The utility model discloses a portable analgesia pump which comprises a pump cabin, a pump cover, a bottom box, an upper cover, a filter, a speed regulator and an infusion pipeline. A medicine storage bag, a two-way valve and an infusion valve are arranged in the pump cabin; when liquid medicine is injected into the medicine storage bag through the infusion opening of the infusion valve, the two-way valve control switch controls the two-way valve to be in a closed state; after liquid injection is completed, the two-way valve control switch controls the two-way valve to be opened, and the elastic retraction force of the medicine storage bag drives the liquid medicine to be conveyed to the two-way valve; the liquid conveying pipeline is arranged in a hollow containing cavity in the bottom box, the filter is placed in a special speed regulator containing area reserved in the bottom box and sealed through a detachable upper cover, and an open hole enabling an adjusting knob of the speed regulator to be exposed is formed in the upper cover. By pre-storing corresponding medicines and combining a plurality of portable analgesia pumps for use, the rapid use of opioid, non-steroidal and sedative related medicines can be realized, the configuration process of the analgesia pumps is simplified, and the grading analgesia concept is advanced to a wound site.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical auxiliary equipment, concretely relates to a portable analgesia pump. BACKGROUND

[0002] Pain is the most important complication of trauma, and acute pain after trauma not only severely limits the mobility of the wounded, but also seriously affects the physical and mental health of the wounded, increasing the risk of chronic pain, post-traumatic stress disorder and depression. Timely analgesic treatment after trauma is crucial.

[0003] The common infusion pump on the market is divided into active infusion pump and passive infusion pump. The former is mostly designed as an integrated structure, which reduces the possible mechanical connection failure, reduces the uncertainty of external connection, and improves the stability of the equipment. But the structure is relatively complex, which limits the expansibility of the equipment, and the number or type of channels cannot be flexibly adjusted according to actual needs, which limits the application range of the equipment. Because it is not detachable, the volume and weight of the entire device may be large, and in some cases, the extra channels may be idle, resulting in waste of equipment resources. And the active infusion pump usually relies on a battery to provide infusion power, which may not be suitable for special environments such as high temperature and high humidity.

[0004] Most passive infusion pumps are single-flow rate infusion pumps, which have the benefits of relatively simple structure, convenient operation, and are suitable for specific medical scenarios such as stable and fixed drug infusion rate. But it lacks flexibility and cannot adapt to diversified medical needs. During treatment, if different flow rates are needed, the drug amount needs to be added through a drug infusion tee, which is inconvenient to use, and sometimes even needs to replace the infusion pump with different flow rates to meet the needs of patients, which is not conducive to the realization of graded analgesia. SUMMARY

[0005] In view of the problems existing in the prior art, the utility model provides a portable analgesia pump, which can realize the rapid use of opioid, non-steroidal and sedative related drugs by pre-storing corresponding drugs and combining the use of multiple portable analgesia pumps, which not only simplifies the analgesia pump configuration process, but also moves the concept of graded analgesia to the trauma site.

[0006] The technical scheme of the utility model is: a portable analgesia pump, comprising a pump cabin, a pump cover, a bottom box, an upper cover, a filter, a speed regulator and an infusion pipeline.

[0007] The pump cabin is provided with a medicine storage bag, a double-way valve and an infusion valve; the medicine storage bag is fixed in a hollow cavity in the pump cabin; the infusion valve has a three-way structure, a first through hole of the infusion valve is a closable infusion port, a second through hole of the infusion valve is connected with the medicine storage bag, and a third through hole of the infusion valve is connected with a liquid inlet of the double-way valve; a double-way valve control switch capable of controlling the opening and closing of the double-way valve is arranged on the double-way valve; when the medicine storage bag is injected with liquid through the infusion port of the infusion valve, the double-way valve control switch controls the double-way valve to be in a closed state; after the injection is completed, the double-way valve control switch controls the double-way valve to be opened, and the elastic retraction force of the medicine storage bag drives the liquid to be delivered to the double-way valve.

[0008] The pump cover is detachably fixedly connected with the pump cabin and then placed in the bottom box, and the double-way valve control switch is exposed through the pump cover.

[0009] The liquid outlet of the double-way valve is connected with the liquid inlet of the filter, and the liquid outlet of the filter is connected with the liquid inlet of the infusion pipeline.

[0010] The infusion pipeline is arranged in a hollow receiving cavity in the bottom box, the filter is placed in a reserved placement area for a speed regulator in the bottom box and is closed by a detachable upper cover, and the upper cover is provided with an opening hole for exposing an adjustment knob of the speed regulator.

[0011] Further, one side of the left and right sides of the bottom box is provided with a boss with a dovetail groove, and the other side is provided with a groove matched with the boss, and the boss of one portable analgesic pump is matched and connected with the groove of another portable analgesic pump, so that the two portable analgesic pumps are connected as a whole.

[0012] Further, the groove includes a wedge-shaped guide groove at the front end and a dovetail groove at the rear end. The device can be smoothly docked.

[0013] Further, the gap between the end of the wedge-shaped guide groove and the dovetail groove is gradually reduced from 0.1 mm to 0.05 mm. The connection tightness of the device is optimized, and the proper damping during disassembly is ensured.

[0014] Further, the end of the dovetail groove is provided with a limiting rib.

[0015] Further, the pump cover and the pump cabin are tightly connected by buckling.

[0016] Further, the pump cabin is provided with a buckle, and the bottom box is provided with a matching hole at the corresponding position. After the pump cover and the pump cabin are connected, the buckle and the matching hole are fixedly connected in the bottom box. The stable connection between the components is ensured, and the loosening or displacement during use is prevented.

[0017] Furthermore, the adjustment knob is a hexagonal structure embedded in the inner side of the upper cover end face, and the speed needs to be controlled by rotating it with a corresponding hexagonal switch tool.

[0018] The beneficial effects of this invention are as follows: Compared with the prior art, this device, by pre-storing corresponding drugs and combining multiple portable analgesic pumps, enables the rapid use of opioids, non-steroidal anti-inflammatory drugs (NSAIDs), and sedative-related drugs. This simplifies the analgesic pump configuration process and brings the concept of graded analgesia to the trauma site. The drug reservoir is a mechanical analgesic pump that overcomes the fixed resistance of the pre-set tubing solely through its own elastic recoil, achieving continuous and stable drug infusion. It is a passive infusion pump, lightweight, safe, impact-resistant, salt-resistant, and moisture-proof, sufficient to meet storage and usage conditions under special circumstances. Different infusion speeds can be achieved via a speed control knob, and the speed accuracy remains high whether using a single portable analgesic pump or multiple portable analgesic pumps combined with a three-way valve. The device adopts a quick-release design, using a dovetail-groove boss and groove structure to achieve rapid installation and disassembly between multiple portable analgesic pumps. A wedge-shaped guide and optimized fitting clearance ensure smooth docking of the device. Users can flexibly adjust the number of cabins as needed, providing a high degree of operational flexibility.

[0019] This novel device can precisely meet the special needs of storing and using graded analgesics in special environments, providing more timely and comprehensive analgesic treatment for trauma patients. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the pump compartment;

[0022] Figure 3 A schematic diagram of the overall structure of the pump compartment and pump cover;

[0023] Figure 4 This is a schematic diagram of the dovetail groove structure;

[0024] Figure 5 This is the general assembly drawing of this utility model.

[0025] In the diagram: 1 is the pump chamber, 2 is the pump cover, 3 is the bottom box, 4 is the top cover, 11 is the drug storage bladder, 12 is the two-way valve, 13 is the infusion valve, 21 is the two-way valve control switch, 22 is the buckle, 41 is the boss with a dovetail groove, 42 is the wedge-shaped guide groove, and 43 is the limiting rib. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] likeFigure 1 The image shows a portable analgesia pump, whose main structure includes a pump chamber 1, a pump cover 2, a base box 3, an upper cover 4, and necessary infusion valves.

[0028] like Figure 2 As shown, the pump chamber of this device is equipped with a drug reservoir 11, a two-way valve 12, and an infusion port 13. The drug reservoir 11 is fixed in an elliptical cavity within the pump chamber 1. When liquid medicine is injected into the drug reservoir 11 through the infusion port 13, the two-way valve 12 is in the closed state. After the injection is completed, the two-way valve 12 opens, and the elastic recoil force of the drug reservoir 11 drives the liquid medicine to be delivered to the speed regulator. In this embodiment, the drug reservoir is made of silicone, with an inner diameter of 8mm, an outer diameter of 12mm, a thickness of 2mm, and a length of 120mm.

[0029] The pump cover 2 and the pump chamber 1 are tightly connected by a snap-fit ​​mechanism, and a two-way valve control switch 21 that can control the opening and closing of the two-way valve 12 is installed through the pump cover, so that the patient can adjust the infusion of the medicine or stop it according to his or her own needs.

[0030] The liquid medicine passes through a filter after exiting the dual-way valve and enters the speed controller. The filter and infusion tubing can be housed in a rectangular storage cavity inside the base box. The pump chamber 1 and pump cover 2 are integrated and placed within the base box 3 after being fastened together. Figure 3 As shown, the pump compartment is equipped with a buckle 22, and the base box 3 has corresponding mating holes to ensure a secure connection between components and prevent loosening or displacement during use. A dedicated area for the speed controller is reserved inside the base box 3 and is sealed by a removable top cover 4. The top cover 4 has an opening to expose the speed controller's adjustment knob for easy operation. To prevent accidental operation, the speed controller knob requires a hexagonal switch tool of a specific shape for adjustment. Users can precisely control the infusion rate of the medication by rotating the knob. After the medication flows out from the speed controller, it mixes with medications from other portable analgesic pumps through a three-way valve.

[0031] like Figure 4 As shown, each device has a boss 41 with a dovetail groove on its left and right sides, and a groove on its right and left sides, respectively. The groove includes a wedge-shaped guide groove 42 at the front end and a dovetail groove at the rear end. The length of the dovetail groove is 50mm, and the front end of the connection has an 80mm wedge-shaped guide groove 42 to ensure smooth docking of the devices. The mating gap at the end of the wedge-shaped guide groove, 5mm from the dovetail groove, gradually converges from 0.1mm to 0.05mm to optimize the connection tightness of the devices and ensure appropriate damping during assembly and disassembly. To ensure precise longitudinal alignment between the devices, the end of the dovetail groove has a 2mm thick limiting rib 43. The above design ensures stable connection of the devices and enables rapid assembly and disassembly of the modular structure through sliding fit. Users can flexibly adjust the number of compartments as needed.

[0032] In order to ensure medical safety and hygiene, the device is designed for one-time use. After each use, the entire device and its internal components can be easily discarded, avoiding the risk of incomplete cleaning and cross-infection that may be caused by traditional multiple-use equipment.

[0033] Specifically, the structure diagram of the assembled analgesic pump of the three portable analgesic pumps is shown in Figure 5 As shown, the assembled analgesic pump uses the mechanical elasticity of the drug storage capsule as the motive power to infuse sufentanil, ketorolac or dexmedetomidine and other pre-stored drugs at a speed of 0, 2, 4 ml / h with high speed and precision. Through the dovetail groove structure, the sufentanil module, the ketorolac module or the dexmedetomidine module, or the three drug modules can be used in combination, and the speed and precision error are all within ±10%.

[0034] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered within the protection scope of the present application.

Claims

1. A portable analgesic pump characterized by: It comprises a pump cabin (1), a pump cover (2), a bottom box (3), an upper cover (4), a filter, a speed regulator and an infusion pipeline. The pump cabin (1) is provided with a medicine storage bag (11), a double-way valve (12) and an infusion valve (13); the medicine storage bag (11) is fixed in a hollow cavity in the pump cabin (1); the infusion valve (13) is of a three-way structure, the first through hole of the infusion valve (13) is a closable infusion port, the second through hole of the infusion valve (13) is connected with the medicine storage bag (11), and the third through hole of the infusion valve (13) is connected with the liquid inlet of the double-way valve (12); the double-way valve (12) is provided with a double-way valve control switch (21) capable of controlling the opening and closing of the double-way valve (12); when the medicine liquid is injected into the medicine storage bag (11) through the infusion port of the infusion valve (13), the double-way valve control switch (21) controls the double-way valve (12) to be in a closed state; after the injection is completed, the double-way valve control switch (21) controls the double-way valve (12) to be opened, and the elastic retraction force of the medicine storage bag (11) drives the medicine liquid to be delivered to the double-way valve (12); The pump cover (2) is detachably fixedly connected with the pump cabin (1) and then placed in the bottom box (3), and the double-way valve control switch (21) is exposed through the pump cover (2); The liquid outlet of the double-way valve (12) is connected with the liquid inlet of the filter, and the liquid outlet of the filter is connected with the liquid inlet of the infusion pipeline; The infusion pipeline is arranged in a hollow receiving cavity in the bottom box (3), the filter is placed in a reserved special placement area of the speed regulator in the bottom box (3) and is closed by the detachable upper cover (4), and the upper cover (4) is provided with an opening hole for exposing the adjustment knob of the speed regulator.

2. The portable analgesic pump of claim 1, wherein: On the left and right sides of the bottom box (3), one side is provided with a boss (41) with a dovetail groove, and the other side is provided with a groove matched with the boss (41), and the boss of one portable analgesic pump is matched and connected with the groove of another portable analgesic pump, so that the two portable analgesic pumps are connected as a whole.

3. The portable analgesic pump of claim 2, wherein: The groove comprises a wedge-shaped guide groove (42) at the front end and a dovetail groove at the rear end.

4. The portable analgesic pump of claim 3, wherein: The gap between the end of the wedge-shaped guide groove (42) and the dovetail groove is gradually reduced from 0.1 mm to 0.05 mm.

5. The portable analgesic pump of claim 3, wherein: The end of the dovetail groove is provided with a limiting rib (43).

6. The portable analgesic pump of claim 1, wherein: The pump cover (2) and the pump cabin (1) are tightly connected by buckling.

7. The portable analgesic pump of claim 1, wherein: The pump cabin (1) is provided with a buckle (22), and the bottom box (3) is provided with a matching hole at the corresponding position, and the pump cover (2) and the pump cabin (1) are fixedly connected in the bottom box (3) through the buckle (22) and the matching hole after being connected.

8. The portable analgesic pump of claim 1, wherein: The adjustment knob is a hexagonal structure embedded in the inner side of the end face of the upper cover (4), and the speed is controlled by rotating the corresponding hexagonal switch tool.

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