Medical precise time control dissolution timing pin
By combining a self-disintegrating structure with a rotating occlusion plate, precise time and volume control without electronic intervention is achieved, solving the problem of inaccurate control in existing medical devices such as urinary catheters, closed thoracic drainage systems, and abdominal drainage, and reducing medical risks.
Patent Information
- Application Number
- CN202511016528.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-23
- Publication Date
- 2025-11-07
AI Technical Summary
The lack of precise, non-electronic time and volume control devices in existing medical equipment leads to improper catheter replacement cycles, inaccurate flow control in closed thoracic drainage systems, and difficulty in simultaneously meeting time and volume control requirements in abdominal drainage, increasing the workload of medical staff and medical risks.
The medical precision timed dissolution timing pin, which adopts a self-disintegrating structure design, controls the liquid permeation rate through the self-disintegrating structure in the disintegration limiting cavity. Combined with a waterproof rotating shaft and a waterproof torsion spring seat, it achieves the limiting control of the rotating sealing plate. The instantaneous pop-out of the spring push plate drives the sealing rod or cutting blade to achieve precise timed dissolution timing.
It achieves precise time and volume control without electronic intervention, reducing the workload of medical staff, lowering medical risks, and ensuring automatic sealing after the preset time and volume are reached, thus preventing complications.
Smart Images
Figure CN120909093A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of medical auxiliary devices, in particular to a medical precise time control dissolving timing pin. BACKGROUND
[0002] At present, the precise control in medical devices mainly relies on the following ways, all of which have obvious limitations: electronic timing, metering and other equipment need to rely on power supply, high cost, reliability is affected by environment, not suitable for disposable medical devices; manual recording and monitoring method needs to rely on medical staff to perform, is easily affected by shift change, and has the risk of human error; simple color / scale indication method has insufficient accuracy and is easily ignored, without forced replacement / stop mechanism; mechanical metering system, whose accuracy is difficult to guarantee, cannot adapt to different patient condition changes.
[0003] In the following medical scenarios, there is an increasing demand for reliable non-electronic precise control solutions, for example, the clinical replacement cycle of urinary catheter is strictly limited, the rubber tube is 7 days, and the silica tube is 30 days, and the existing technology lacks a forced replacement mechanism. Clinically, a reliable, non-subjective physical mechanism is urgently needed to force catheter replacement after the expiration of the preset time, to prevent urinary tract infections, stone formation and other complications caused by delayed replacement. In the closed thoracic drainage system, the clinical standard usually requires that the first day drainage volume does not exceed 1000ml, and exceeding this threshold value may lead to complications such as re-expansion pulmonary edema. At present, it relies on medical staff to monitor and manually control the pipe, which not only increases the work burden, but also may delay the treatment due to negligence. Certain clinical scenarios require simultaneous consideration of time and volume control, such as abdominal drainage, which has both drainage time limit and daily maximum drainage volume limit, and the existing technology cannot meet both of these needs.
[0004] The physical dissolution process of drugs, medicaments, mixtures before absorption or action in medicine is called disintegration. The common disintegration mechanism products on the market include disintegrating tablets, effervescent tablets, multi-layer tablet coating products, and micro-environment corresponding disintegration products. Disintegration is actually the process of dissolution of pills, blocks, tablets or capsules under certain time, pressure, temperature or other conditions, and disintegration does not mean absorption, but a precise control mechanism. Although there are related researches on disintegration system in the field of drug sustained release, the technology for precise time / volume control in medical devices is still blank. Therefore, there is a lack of non-electronic precise control device for medical drainage system in the existing technology. SUMMARY
[0005] In view of the deficiencies of the prior art, the present application provides a medical precise time control dissolving timing pin which has simple structure, convenient operation, is suitable for different pipe connections, is triggered by self-disintegration system, effectively reduces the work burden of medical staff, reduces medical risk and operation risk, and adopts non-electronic design, to overcome the defects in the prior art.
[0006] The technical scheme of the present application is implemented as follows: a medical precise time control dissolution timing pin comprises a shell, a liquid distribution cavity formed in the shell, an inlet pipe and an outlet pipe respectively communicated with two ends of the liquid distribution cavity, a disintegration limiting cavity formed in the outer wall of the shell, the disintegration limiting cavity being communicated with the liquid distribution cavity through an inlet valve, a self-disintegration structure body placed in the disintegration limiting cavity, a sealing push plate mounted at the lower part of the self-disintegration structure body, the lower part of the sealing push plate being connected with a limiting cavity cover plate through a spring, a sealing through hole provided at one side of the inlet valve, a plugging rod movably mounted in the sealing through hole, a first magnet piece provided on the top surface of the plugging rod, the bottom of the plugging rod being connected with the top of the sealing push plate through a push rod, and a rotating plugging piece mounted in the liquid distribution cavity through a waterproof rotating shaft, the side surface of the rotating plugging piece being provided with a second magnet block matched with the first magnet piece.
[0007] Preferably, the waterproof rotating shaft is arranged on the middle bottom surface of the liquid distribution cavity, the outer wall of the rotating plugging piece is matched with the inner wall of the liquid distribution cavity, and a stop block matched with the outer edge of the rotating plugging piece is arranged on the top surface of the liquid distribution cavity; or the waterproof rotating shaft is arranged on the bottom surface of the liquid distribution cavity at the liquid inlet end position of the outlet pipe.
[0008] Preferably, the push rod and the plugging rod are both cylindrical rod structures, the diameter of the push rod is not greater than the diameter of the plugging rod, the sealing through hole is a circular through hole communicated with the liquid distribution cavity and the disintegration limiting cavity, the length of the push rod is not less than one half of the depth of the disintegration limiting cavity, the length of the plugging rod is equal to the depth of the sealing through hole, and the length between the waterproof rotating shaft and the inlet valve is not less than the length of the rotating plugging piece.
[0009] A medical precise time control dissolution timing pin comprises a shell, a liquid distribution cavity formed in the shell, an inlet pipe and an outlet pipe respectively communicated with two ends of the liquid distribution cavity, a disintegration limiting cavity formed in the outer wall of the shell, the disintegration limiting cavity being communicated with the liquid distribution cavity through an inlet valve, a self-disintegration structure body placed in the disintegration limiting cavity, a sealing push plate mounted at the lower part of the self-disintegration structure body, the lower part of the sealing push plate being connected with a limiting cavity cover plate through a spring, a sealing through hole provided at one side of the inlet valve, a plugging rod movably mounted in the sealing through hole, a first magnet piece provided on the top surface of the plugging rod, the bottom of the plugging rod being connected with the top of the sealing push plate through a push rod, and a rotating plugging piece mounted in the liquid distribution cavity through a waterproof rotating shaft, the side surface of the rotating plugging piece being provided with a second magnet block matched with the first magnet piece.
[0010] Preferably, the waterproof rotating shaft is arranged on the middle bottom surface of the liquid distribution cavity, the outer wall of the rotating plugging piece is matched with the inner wall of the liquid distribution cavity, and a stop block matched with the outer edge of the rotating plugging piece is arranged on the top surface of the liquid distribution cavity; or the waterproof rotating shaft is arranged on the bottom surface of the liquid distribution cavity at the liquid inlet end position of the outlet pipe.
[0011] Preferably, the end face of the rotating blocking piece towards the liquid inlet pipe is provided with a support liquid blocking block, the length between the waterproof torsion spring seat and the liquid inlet valve is not less than the length of the rotating blocking piece, a blade limiting groove matched with the cutting blade is formed in the top wall of the liquid distribution cavity, and the limiting pull rope is arranged at the opening of the blade limiting groove.
[0012] The medical precise time control dissolution timing pin comprises a shell, a liquid distribution cavity formed in the shell, a liquid inlet pipe and a liquid outlet pipe respectively communicated with two ends of the liquid distribution cavity, a disintegration limiting cavity formed in the shell below the position where the liquid distribution cavity is communicated with the liquid outlet pipe, the disintegration limiting cavity being communicated with the bottom of the liquid distribution cavity through a liquid inlet valve, a self-disintegration structure body being placed in the disintegration limiting cavity, a sealing push plate being installed at the lower part of the self-disintegration structure body, the sealing push plate being connected with a limiting cavity cover plate through a spring at the lower part, a shutter limiting through hole being arranged at one side of the liquid inlet valve, a shutter being movably installed in the shutter limiting through hole, and the bottom of the shutter being connected with the top of the sealing push plate through a push rod.
[0013] Preferably, a one-way liquid outlet valve is arranged at one side of the liquid inlet valve and communicated with the liquid distribution cavity and the disintegration limiting cavity.
[0014] Preferably, the shutter limiting through hole is a square slot-shaped through hole structure communicated with the disintegration limiting cavity and the inner cavity of the liquid outlet pipe, the inner diameter of the shutter limiting through hole is consistent with the outer diameter of the shutter, and the length of the shutter is not less than the inner diameter of the liquid outlet pipe.
[0015] Preferably, an elastic through hole is arranged at the center position of the limiting cavity cover plate, a pre-warning display rod is movably sleeved in the elastic through hole, the pre-warning display rod is fixedly connected with the bottom of the sealing push plate through a pre-warning elastic connecting rod, an observation window is formed in at least one side of the shell, and the cross section of the liquid distribution cavity is a square structure.
[0016] The present application has the following positive effects: 1. The present application fills the technical gap of using disintegration system to achieve precise time / volume control in medical devices, and provides a non-electronic medical precise control device. Unlike traditional manual control devices and electronic precise control devices, the product uses the installation of self-disintegration structure in the disintegration limiting cavity to achieve the limiting operation of the sealing push plate. When the liquid enters the disintegration limiting cavity through the liquid inlet valve, the self-disintegration structure controls the water permeation rate of the outer layer, thereby accurately dissolving the time. After the water molecules slowly permeate to the inside, the internal filled substance is quickly dissolved, triggering the collapse of the overall structure, achieving the self-disintegration effect. When the self-disintegration structure disintegrates, the sealing push plate in the limiting state is quickly output under the release action of the spring pressure at the bottom. During the output process, the push rod or cutting blade is moved upward, thereby achieving the output of the blocking rod, the cutting of the limiting pull rope, or the output of the gate plate. When the blocking rod is output, the top of the blocking rod instantaneously ejects the rotating blocking piece in the liquid distribution cavity, and the rotating blocking piece rotates to block the liquid distribution cavity. When the cutting blade cuts the limiting pull rope, the compressed state of the waterproof torsion spring seat is released, the rotating blocking piece is instantaneously reset and blocks the liquid distribution cavity. When the gate plate is pushed upward by the push rod, the liquid outlet pipe inner cavity is blocked. When the blocking rod is output by the push rod or the limiting pull rope is cut by the cutting blade, the blocking position of the rotating blocking piece can be different positions in the middle of the liquid distribution cavity, or the liquid inlet end position of the liquid outlet pipe can be blocked. The product achieves the displacement of the sealing push plate through the instantaneous ejection operation of the spring, thereby driving different blocking structures to achieve the precise time control dissolution timing flow limiting operation after the disintegration of the self-disintegration structure.
[0017] 2、The application realizes two kinds of limiting control of the rotary sealing piece through the waterproof rotating shaft and the waterproof torsional spring seat, when the waterproof rotating shaft is used, the rotary sealing piece is in a free rotating state in the liquid distribution cavity, the rotary sealing piece can realize 180 degrees free rotation around the waterproof rotating shaft, in the initial state, the rotary sealing piece can be in a 0 degree angle state, one side surface of which is attached to the bottom wall of the liquid distribution cavity, which ensures that the liquid in the liquid distribution cavity will not be subjected to excessive resistance during the liquid flow process, in order to ensure the maintenance of the above state, the rotary sealing piece is limited before the self-disintegration structure disintegrates through the second magnet block and the first magnet piece, when the self-disintegration structure disintegrates, the push rod drives the sealing rod to output from the sealing through hole under the action of the spring, at this time, the second magnet block and the first magnet piece are attached to each other, and the rotary sealing piece is perpendicular to the liquid distribution cavity under the action of the elastic force, in order to ensure the sealing effect and the sealing failure caused by excessive rotation of the rotary sealing piece, the product is designed with a stop block to support the outer end of the rotary sealing piece and realize positioning clamping, when the waterproof torsional spring seat is used, the rotary sealing piece is rotated to a 0 degree angle state, the waterproof torsional spring seat is in a compressed deformation state, in order to ensure the maintenance of the above state before the self-disintegration structure disintegrates, the rotary sealing piece is fixed by the limiting pull rope, maintaining the continuous compression state of the spring seat, when the self-disintegration structure disintegrates, the sealing push plate moves up, driving the cutting blade to cut the limiting pull rope, after cutting, the spring seat resets, driving the rotary sealing piece to rotate to a 90 degree angle state with the bottom wall of the liquid distribution cavity, and then realizing the sealing of the liquid distribution cavity, in order to ensure the sealing effectiveness of this state, the product is designed with a stop block to support the outer end of the rotary sealing piece and realize limiting clamping.
[0018] 3、When the self-disintegration structure disintegrates the internal core part through slow penetration, the sealing push plate moves quickly to the original placement position of the self-disintegration structure under the action of the spring, in the process of moving, the liquid enters the disintegration limiting cavity above the sealing push plate through the liquid inlet valve, at this time, in order to ensure the effective movement of the sealing push plate, the liquid in the disintegration limiting cavity must be discharged, at this time, the sealing through hole becomes a liquid discharge channel, before disintegration occurs, the sealing through hole is sealed by the sealing rod or the water-impermeable limiting pull rope, when the sealing push plate moves up under the action of the spring, the sealing rod moves up synchronously, the outer diameter of the push rod is smaller than the inner diameter of the sealing through hole, at this time, the sealing through hole becomes a liquid discharge channel, or when the sealing push plate moves up, the cutting blade cuts the limiting pull rope, after cutting, the waterproof torsional spring seat is relieved of compression and resets, the limiting pull rope is separated from the sealing through hole and becomes a liquid discharge channel. In order to ensure the effective discharge of the liquid during the operation of the product, the product is also provided with a one-way liquid outlet valve for auxiliary liquid discharge according to specific use conditions.
[0019] 4, the disintegration of the product limit position cavity liquid position using one-way liquid inlet valve, in order to improve the liquid inlet valve liquid effect, the rotating sealing piece in the initial state, its outer end surface part and liquid inlet valve liquid inlet position height cooperation, realize liquid from the liquid inlet pipe to the outlet pipe direction flow process, in the liquid inlet valve liquid inlet position of the rotating flow, realize the effective liquid through the liquid inlet valve into the disintegration limit cavity.
[0020] 5, in order to enhance the practicality of the product in the process of use, at the same time for medical staff to provide visual prompt, the product in the limit cavity cover plate movably equipped with early warning display rod, early warning display rod in the initial state is convex, when the sealing push plate displacement under the spring pressure, early warning telescopic connecting rod synchronous drive early warning display rod moves towards the disintegration limit cavity, early warning display rod finally hidden in the disintegration limit cavity, the original exposed convex state disappears, to prompt medical staff product has reached the timing or metering closing state. The product can be connected with different liquid flow medical pipeline, whether the liquid pipeline is in vertical setting state or horizontal setting state, the product can play the rotating sealing piece or the shutter plate to the liquid distribution cavity, realize the non electronic accurate timing pipeline closing. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is one of the main view structure schematic diagram of the present application.
[0022] Figure 2 is the rear view structure schematic diagram of the present application. Figure 1
[0023] Figure 3 is the top view structure schematic diagram of the present application. Figure 1
[0024] Figure 4 is the bottom view structure schematic diagram of the present application. Figure 1
[0025] Figure 5 is one of the internal use state structure schematic diagram of the present application. Figure 1
[0026] is the internal use state structure schematic diagram of the present application. Figure 6 Figure 1 is the local enlarged structure schematic diagram of the present application.
[0027] Figure 7 Figure 5 is the local enlarged structure schematic diagram of the present application.
[0028] Figure 8 is the local enlarged structure schematic diagram of the present application. Figure 6
[0029] Figure 9 Fig. 3 is a schematic view of a structure of the application in an internal use state.
[0030] Figure 10 Fig. 4 is a schematic view of a structure of the application in an internal use state.
[0031] Figure 11 Fig. 5 is a schematic view of a structure of the application in an internal use state. Figure 9 Fig. 6 is a schematic view of a structure of the application in an internal use state.
[0032] Figure 12 Fig. 7 is a schematic view of a structure of the application in an internal use state. Figure 10 Fig. 8 is a schematic view of a structure of the application in an internal use state.
[0033] Figure 13 Fig. 9 is a schematic view of a structure of the application in an internal use state.
[0034] Figure 14 Fig. 10 is a schematic view of a structure of the application in an internal use state.
[0035] Figure 15 Fig. 11 is a schematic view of a structure of the application in an internal use state.
[0036] Figure 16 Fig. 12 is a schematic view of a structure of the application in an internal use state. DETAILED DESCRIPTION
[0037] The technical solutions in the embodiments of the application will be apparently and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, but not all the embodiments of the application. Based on the embodiments in the application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.
[0038] In the following description of the application, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation. The term "connection" only means the connection between devices, and has no special meaning.
[0039] Example 1: as Figure 1 , 2The application discloses a medical precise time control dissolving timing pin, which is characterized by comprising a shell 1, a liquid distribution cavity 11 arranged in the shell 1, a liquid inlet pipe 2 and a liquid outlet pipe 3 which are respectively communicated with two ends of the liquid distribution cavity 11, a disintegration limiting cavity 14 arranged on the outer wall of the shell 1, the disintegration limiting cavity 14 being communicated with the liquid distribution cavity 11 through a liquid inlet valve 13, a self-disintegration structure 15 arranged in the disintegration limiting cavity 14, a sealing push plate 20 arranged at the lower part of the self-disintegration structure 15, the sealing push plate 20 being connected with a limiting cavity cover plate 10 through a spring 21, a sealing through hole 17 arranged on one side of the liquid inlet valve 13, a blocking rod 18 movably arranged in the sealing through hole 17, a first magnet piece 19 arranged on the top surface of the blocking rod 18, the bottom of the blocking rod 18 being connected with the top of the sealing push plate 20 through a push rod 16, and a rotating blocking piece 6 arranged in the liquid distribution cavity 11 through a waterproof rotating shaft 5, the rotating blocking piece 6 being provided with a second magnet block 7 which is matched with the first magnet piece 19.
[0040] The waterproof rotating shaft 5 is arranged on the bottom surface of the middle part of the liquid distribution cavity 11, the outer wall of the rotating blocking piece 6 is matched with the inner wall of the liquid distribution cavity 11, and a stopper 12 is arranged on the top surface of the liquid distribution cavity 11 and matched with the outer edge of the rotating blocking piece 6.
[0041] The push rod 16 and the blocking rod 18 are both cylindrical rod structures, the diameter of the push rod 16 is not greater than that of the blocking rod 18, the sealing through hole 17 is a circular through hole which is communicated with the liquid distribution cavity 11 and the disintegration limiting cavity 14, the length of the push rod 16 is not less than one half of the depth of the disintegration limiting cavity 14, the length of the blocking rod 18 is equal to the depth of the sealing through hole 17, and the length between the waterproof rotating shaft 5 and the liquid inlet valve 13 is not less than the length of the rotating blocking piece 6.
[0042] A telescopic through hole is arranged at the center position of the limiting cavity cover plate 10, a pre-warning display rod 8 is movably sleeved in the telescopic through hole, the pre-warning display rod 8 is fixedly connected with the bottom of the sealing push plate 20 through a pre-warning telescopic connecting rod 9, an observation window 4 is arranged on at least one side of the shell 1, and the cross section of the liquid distribution cavity 11 is a square structure.
[0043] Specifically, the shell 1 is the main body structure of the product, and the inlet pipe 2 and the outlet pipe 3 are symmetrically connected at both ends thereof, respectively. The inlet pipe 2 is connected with a medical pipeline outlet end or a liquid outlet pipeline, and the outlet pipe 3 is connected with a medical liquid receiving bag body or a medical extension pipeline inlet pipeline. The disintegration limiting cavity 14 is arranged on the outer wall of the shell 1 and is sealed by the limiting cavity cover plate 10. The disintegration limiting cavity 14 is connected with the liquid distribution cavity 11 through the one-way inlet valve 13. The disintegration limiting cavity 14 is divided into two parts, one of which is a cavity structure and the other of which is connected with the liquid distribution cavity for one-way liquid inlet. The two parts are isolated by the sealing push plate 20. The liquid distribution cavity 11 is arranged in the shell 1, and both ends thereof are connected with the inlet pipe 2 and the outlet pipe 3, respectively, thereby forming a liquid containing and drainage or diversion cavity after the liquid enters the shell 1.
[0044] The self-disintegration structure 15 adopts a design structure of an outer shell wrapping an inner core. The outer shell layer is used to control the water permeation rate, thereby accurately determining the dissolution time. The core layer containing a disintegration trigger mechanism is used as a support body to maintain the integrity of the structure. A diffusion potential gradient is created by continuously changing the crosslinking degree, so that the water molecule permeation follows a predictable mathematical model. After the water molecules slowly permeate into the core layer, the acidic monomer is released, the local environment pH value is reduced, the pH-sensitive polymer is quickly dissolved at a specific pH threshold, the overall structure is collapsed, and the self-disintegration effect is achieved.
[0045] The sealing push plate 20 and the limiting cavity cover plate 10 are connected by the spring 21. The limiting cavity cover plate 10 is tightly clamped at the bottom of the disintegration limiting cavity, thereby achieving fast sealing. After the self-disintegration structure 15 is installed, the sealing push plate 20, the limiting cavity cover plate 10 and the spring are installed into the disintegration limiting cavity, and the volume of the self-disintegration structure 15 is used to limit the sealing push plate 20. After the limiting, the spring 21 is in a compressed and contracted state. At this time, the sealing rod 18 falls into the sealing through hole 17 and is fitted and inserted. The push rod 16 is located in the disintegration limiting cavity 14 on one side of the self-disintegration structure 15.
[0046] The inlet valve 13 is a one-way inlet valve. The liquid only flows from the liquid distribution cavity 11 to the disintegration limiting cavity 14, but not from the disintegration limiting cavity 14 to the liquid distribution cavity 11. Under the condition of no external pressure, the liquid in the disintegration limiting cavity 14 is in a stable state.
[0047] The rotary sealing piece 6 is installed in the liquid distribution cavity 11 through the waterproof rotary shaft 5. In the initial state, the rotary sealing piece 6 is rotated towards the inlet pipe 2 by the external rod for guiding and controlling. After the rotary sealing piece 6 is rotated to be attached to the bottom wall of the liquid distribution cavity 11, the second magnet block 7 is exactly magnetically adsorbed with the first magnet piece 19 at the top of the sealing rod 18. In turn, the initial limiting of the rotary sealing piece 6 is achieved.
[0048] In use, as liquid enters the disintegration limiting cavity 14 from the liquid distribution chamber 11 through the inlet valve, the self-disintegrating structure 15 slowly allows the liquid to penetrate into the core layer according to a preset disintegration time. When the time or flow rate reaches a preset value, the disintegration system activates its mechanism to achieve instantaneous disintegration. At this time, the self-disintegrating structure 15, which originally supported the sealing push plate 20, loses its supporting function. Under the elastic force of the spring 21, the sealing push plate 20 moves towards the disintegration limiting cavity 14, which originally housed the self-disintegrating structure 15. Simultaneously with the displacement of the sealing push plate 20, the push rod 16 drives the sealing rod 18 to move out of the sealing through hole 17. The channel between the outer wall of the push rod 16 and the inner wall of the sealing through hole 17 becomes the liquid outlet channel within the disintegration limiting cavity 14. Under the action of the instantaneous disintegration of the self-disintegrating structure 15 and the instantaneous displacement of the sealing push plate 20, the sealing rod 18 instantly ejects the rotating sealing plate 6 that was originally pressed on it. The rotating sealing plate 6 rotates around the waterproof rotating shaft 5 to a state close to ninety degrees. At this time, the stop block 12 engages with the outer end face of the rotating sealing plate 6 to achieve positioning. The integral filling in the disintegration limiting cavity is discharged from the sealing through hole 17. The rotating sealing plate 6 changes from the original horizontal state in contact with the bottom wall of the liquid distribution cavity 11 to the state perpendicular to the bottom wall of the liquid distribution cavity 11. The liquid distribution cavity 11 changes from the original open state to the closed state, realizing the automatic sealing of the liquid distribution cavity 11.
[0049] During automatic sealing operation, the warning display rod 8, which was originally exposed outside the limit cavity cover plate 10, retracts into the disintegration limit cavity along with the warning telescopic link 9, thereby reminding medical staff that the product has entered the sealing state. At the same time, the sealing state can be further clearly observed through the observation window 4, so as to carry out further pipeline replacement, adjustment, replacement and other operations.
[0050] Example 2, as Figure 13 As shown, this embodiment differs from Embodiment 1 in that it does not include a stop 12. The waterproof rotating shaft 5 is positioned on the bottom surface of the liquid distribution cavity 11 at the inlet end of the outlet pipe 3. When the rotating sealing plate 6 pops out from its initial horizontal state and then transitions to a vertical state, its sidewall seals the outlet pipe 3. The outer edge of the rotating sealing plate 6 contacts the inner edge of the liquid distribution cavity 11 and seals it, preventing liquid from flowing from the liquid distribution cavity 11 towards the outlet pipe 3, thus achieving automatic sealing of the liquid distribution cavity 11. Due to the obstruction of the end sidewall of the liquid distribution cavity 11, the rotating sealing plate 6 no longer rotates excessively but is limited to the longitudinal surface where the outlet end sidewall of the liquid distribution cavity 11 and the inlet end of the outlet pipe 3 are located. Therefore, this embodiment does not require a stop 12.
[0051] When the automatic sealing operation is running, the early warning display rod 8 originally exposed outside the limiting cavity cover plate 10 is retracted into the disintegration limiting cavity along with the early warning telescopic connecting rod 9, thereby reminding medical staff that the product has entered the sealing state, and the sealing state can be further clearly observed through the observation window 4, so as to implement further pipeline replacement, adjustment, replacement and other operations.
[0052] Embodiment 3, as shown in Figure 9 、 10 , 11, 12, a medical precise time control dissolution timing pin, comprising a shell 1, a liquid distribution cavity 11 opened in the shell 1, a liquid inlet pipe 2 and a liquid outlet pipe 3 respectively communicated with both ends of the liquid distribution cavity 11, a disintegration limiting cavity 14 opened on the outer wall of the shell 1, the disintegration limiting cavity 14 communicated with the liquid distribution cavity 11 through a liquid inlet valve 13, a self-disintegration structure 15 placed in the disintegration limiting cavity 14, a sealing push plate 20 installed at the lower part of the self-disintegration structure 15, the sealing push plate 20 connected with a limiting cavity cover plate 10 through a spring 21 at the lower part, a sealing through hole 17 provided on one side of the liquid inlet valve 13, a limiting pull rope 25 sleeved in the sealing through hole 17, a cutting blade 26 installed on the top surface of the sealing push plate 20, a rotating sealing piece 6 installed in the liquid distribution cavity 11 through a waterproof torsion spring seat 22, one end of the limiting pull rope 25 fixed on the top surface of the disintegration limiting cavity 14, and the other end of the limiting pull rope 25 fixedly connected with the side surface of the rotating sealing piece 6 in the compressed state of the waterproof torsion spring seat 22.
[0053] The waterproof torsion spring seat 22 is arranged on the middle bottom surface of the liquid distribution cavity 11, the outer wall of the rotating sealing piece 6 is matched with the inner wall of the liquid distribution cavity 11, and a stop block 12 matched with the outer edge of the rotating sealing piece 6 is arranged on the top surface of the liquid distribution cavity 11. A supporting liquid blocking block 23 is arranged on the end face of the rotating sealing piece 6 towards the side of the liquid inlet pipe 2, the length between the waterproof torsion spring seat 22 and the liquid inlet valve 13 is not less than the length of the rotating sealing piece 6, a blade limiting groove 24 matched with the cutting blade 26 is opened on the top wall of the liquid distribution cavity 11, and the limiting pull rope 25 is arranged at the opening of the groove bottom of the blade limiting groove 24.
[0054] A one-way liquid outlet valve 27 communicating the liquid distribution cavity 11 and the disintegration limiting cavity 14 is arranged on one side of the liquid inlet valve 13. A telescopic through hole is arranged at the center position of the limiting cavity cover plate 10, an early warning display rod 8 movably sleeved in the telescopic through hole, the early warning display rod 8 fixedly connected with the bottom of the sealing push plate 20 through an early warning telescopic connecting rod 9, an observation window 4 opened on at least one side of the shell 1, and the cross section of the liquid distribution cavity 11 is a square structure.
[0055] Specifically, the difference between the embodiment and embodiment 1 is that the limiting pull rope 25 is sleeved in the sealing through hole 17 in the embodiment, the rotating sealing piece 6 is installed in the liquid distribution cavity 11 through the waterproof torsional spring seat 22, the top surface of the sealing push plate 20 is provided with the cutting blade 26, the blade limiting groove 24 matched with the cutting blade 26 is formed in the top wall of the liquid distribution cavity 11, the limiting pull rope 25 is arranged at the opening of the groove bottom of the blade limiting groove 24, and the bottom end of the limiting pull rope 25 is fixed to the top surface of the disintegration limiting cavity 14 in a binding or other fixing manner. The other end of the limiting pull rope 25 is fixedly connected with the side surface of the rotating sealing piece 6 in the compressed state of the waterproof torsional spring seat 22. In the initial state, the rotating sealing piece 6 is vertically arranged. During installation, the limiting pull rope 25 on the side of the rotating sealing piece 6 facing the direction of the liquid inlet pipe 2 is first passed through the sealing through hole 17 into the disintegration limiting cavity 14, then the rotating sealing piece 6 is pressed in the direction of the liquid inlet pipe 2 by using an external guide rod, the rotating sealing piece 6 is rotated, the limiting pull rope 25 is pulled tight at the same time, when the rotating sealing piece 6 is rotated to be parallel to the bottom wall of the liquid distribution cavity 11, the end of the limiting pull rope 25 is fixedly connected with the hanging ring or the fixing device on the top surface of the disintegration limiting cavity 14, so that the horizontal state of the rotating sealing piece 6 is limited, and after the limiting operation is completed, the self-disintegration structure 15, the sealing push plate 20 and the limiting cavity cover plate 10 are installed in the opened disintegration limiting cavity 14.
[0056] The support liquid blocking block 23 plays two roles in use. One is to support the bottom of the rotating sealing piece 6, so that a gap is formed between the bottom of the rotating sealing piece 6 and the bottom surface of the liquid distribution cavity 11, the gap facilitates installation of the limiting pull rope 25, and also reserves a liquid outlet space for the top of the one-way liquid outlet valve 27. The other is to partially limit and block the liquid flowing from the direction of the liquid inlet pipe 2, so that the liquid forms a rotating flow at the position of the support liquid blocking block 23, and the liquid inlet efficiency at the position of the liquid inlet valve 13 is improved. The product is different from embodiment 1. The product is provided with the liquid outlet valve 27 on the side of the liquid inlet valve 13, and the liquid outlet valve 27 communicates the liquid distribution cavity 11 and the disintegration limiting cavity 14. After the disintegration mechanism occurs, the liquid in the disintegration limiting cavity 14 above the sealing push plate 20 can be discharged through the liquid outlet valve 27. The liquid outlet valve 27 is a one-way valve, and the liquid only flows out of the disintegration limiting cavity 14 to the liquid distribution cavity 11, but does not flow into the disintegration limiting cavity 14 from the liquid distribution cavity 11. The liquid inlet valve 13 is a one-way liquid inlet valve, and has the same function as that in embodiment 1.
[0057] In use, after the liquid enters the disintegration limiting cavity 14 from the liquid distribution cavity 11 through the liquid inlet valve, the self-disintegration structure 15 starts to implement slow liquid penetration into the core layer according to the preset disintegration time, and when the time or flow rate reaches the preset value, the disintegration system plays a mechanism to achieve instantaneous disintegration. At this time, the self-disintegration structure 15 that originally supports the sealing push plate 20 loses the supporting effect, and the sealing push plate 20 moves towards the position of the disintegration limiting cavity 14 that originally contains the self-disintegration structure 15 under the elastic force of the spring 21. At the same time that the sealing push plate 20 is displaced, the cutting blade 26 moves towards the blade limiting groove 24, and when it touches the limiting pull rope 25 in a taut state under the action of pressure, it cuts the limiting pull rope 25, the horizontal limiting state of the rotating sealing plate 6 is released, the elastic component of the waterproof torsional spring seat 22 returns to the initial state without pressure, the rotating sealing plate 6 returns to the initial state perpendicular to the bottom wall of the liquid distribution cavity 11, the stop block 12 and the outer end surface of the rotating sealing plate 6 are connected to achieve positioning, ensuring the sealing effect of the outer end surface position of the rotating sealing plate 6, the integrated liquid outlet valve 27 in the disintegration limiting cavity is discharged, the rotating sealing plate 6 changes from the original horizontal state in contact with the bottom wall of the liquid distribution cavity 11 to the vertical state perpendicular to the bottom wall of the liquid distribution cavity 11, and the liquid distribution cavity 11 changes from the original open state to the closed state, achieving automatic sealing of the liquid distribution cavity 11.
[0058] During the automatic sealing operation, the warning display rod 8 originally exposed outside the limiting cavity cover plate 10 is retracted into the disintegration limiting cavity along with the warning telescopic connecting rod 9, thereby reminding medical personnel that the product has entered the sealing state, and the sealing state can also be clearly observed through the observation window 4, thereby implementing further pipeline replacement, adjustment, replacement, etc.
[0059] As shown in Figure 14 the waterproof torsional spring seat 22 is arranged on the bottom surface of the liquid distribution cavity 11 at the liquid inlet end position of the liquid outlet pipe 3, and the difference between this embodiment and embodiment 3 is that this embodiment does not have the stop block 12, and the waterproof torsional spring seat 22 is arranged on the bottom surface of the liquid distribution cavity 11 at the liquid inlet end position of the liquid outlet pipe 3. When the rotating sealing plate 6 is popped out from the horizontal state and changes to the vertical state, its side wall seals the liquid outlet pipe 3, and the outer edge of the rotating sealing plate 6 contacts the inner edge of the liquid distribution cavity 11 to seal it, so that the liquid no longer flows from the liquid distribution cavity 11 to the liquid outlet pipe 3, achieving automatic sealing of the liquid distribution cavity 11. Due to the blockage of the side wall at the end of the liquid distribution cavity 11 and the resistance of the elastic component of the waterproof torsional spring seat 22, the rotating sealing plate 6 is accurately positioned on the longitudinal surface where the liquid outlet end side wall of the liquid distribution cavity 11 and the liquid inlet end of the liquid outlet pipe 3 are located.
[0060] During automatic sealing operation, the warning display rod 8, which was originally exposed outside the limit cavity cover plate 10, retracts into the disintegration limit cavity along with the warning telescopic link 9, thereby reminding medical staff that the product has entered the sealing state. At the same time, the sealing state can be further clearly observed through the observation window 4, so as to carry out further pipeline replacement, adjustment, replacement and other operations.
[0061] Example 5, as Figure 15 , 16 As shown, a medical precision time-controlled dissolution timing pin includes a housing 1, a liquid distribution cavity 11 opened in the housing 1, an inlet pipe 2 and an outlet pipe 3 respectively connected to the two ends of the liquid distribution cavity 11, and a disintegration limiting cavity 14 opened on the housing 1 below the position where the liquid distribution cavity 11 and the outlet pipe 3 are connected. The disintegration limiting cavity 14 is connected to the bottom of the liquid distribution cavity 11 through an inlet valve 13. A self-disintegrating structure 15 is placed in the disintegration limiting cavity 14. A sealing push plate 20 is installed at the lower part of the self-disintegrating structure 15. The lower part of the sealing push plate 20 is connected to the limiting cavity cover plate 10 through a spring 21. A gate limiting through hole 28 is provided on one side of the inlet valve 13. A gate 29 is movably installed in the gate limiting through hole 28. The bottom of the gate 29 is connected to the top of the sealing push plate 20 through a push rod 16.
[0062] A one-way outlet valve 27 is provided on one side of the inlet valve 13, connecting the liquid distribution chamber 11 and the disintegration limiting chamber 14. The gate limiting through hole 28 is a square groove-shaped through hole structure connecting the disintegration limiting chamber 14 and the inner cavity of the outlet pipe 3. The inner diameter of the gate limiting through hole 28 matches the outer diameter of the gate 29, and the length of the gate 28 is not less than the inner diameter of the outlet pipe 3. A telescopic through hole is provided at the center of the limiting chamber cover plate 10. A warning display rod 8 is movably fitted inside the telescopic through hole. The warning display rod 8 is fixedly connected to the bottom of the sealing push plate 20 through a warning telescopic connecting rod 9. An observation window 4 is provided on at least one side of the housing 1. The liquid distribution chamber 11 has a square cross-section.
[0063] Specifically, this embodiment differs from embodiments 1-4 in that it does not use a rotating sealing plate 6, but instead uses a gate plate 29 to seal the outlet pipe 3. This can also be extended to seal the inlet pipe 2, rather than the liquid distribution chamber 11. Additionally, this embodiment has a gate plate limiting through hole 28 on the bottom of the housing of the outlet pipe 3 for installing the gate plate 29, and the bottom of the gate plate limiting through hole 28 is connected to the push rod 16.
[0064] In use, after the liquid enters the disintegration limiting cavity 14 from the liquid distribution cavity 11 through the liquid inlet valve, the self-disintegration structure 15 starts to implement slow liquid penetration into the core layer according to the preset disintegration time, and when the time or flow reaches the preset value, the disintegration system mechanism is implemented to achieve instantaneous disintegration. At this time, the self-disintegration structure 15 that originally supports the sealing push plate 20 loses the supporting effect, and the sealing push plate 20 moves towards the position of the disintegration limiting cavity 14 that originally contains the self-disintegration structure 15 under the elastic force of the spring 21. At the same time that the sealing push plate 20 is displaced, the push rod 16 drives the shutter 29 to move out of the shutter limiting through hole 28, and the integrated liquid outlet valve 27 in the disintegration limiting cavity is discharged. Under the action of the instantaneous disintegration of the self-disintegration structure 15 and the instantaneous displacement of the sealing push plate 20, the shutter 29 enters the liquid outlet pipe 3, and the liquid outlet pipe 3 changes from the original passage state to the closed state, realizing automatic plugging of the liquid outlet pipe 3.
[0065] In order to improve the liquid discharge efficiency, the product is provided with a liquid outlet valve 27 on the side of the liquid inlet valve 13, which communicates the liquid distribution cavity 11 and the disintegration limiting cavity 14. After the disintegration mechanism occurs, the liquid in the disintegration limiting cavity 14 above the sealing push plate 20 can be discharged through the liquid outlet valve 27. The liquid outlet valve 27 is a one-way valve, and the liquid only flows from the disintegration limiting cavity 14 to the liquid distribution cavity 11, and does not flow from the liquid distribution cavity 11 to the disintegration limiting cavity 14. The liquid inlet valve 13 is a one-way liquid inlet valve, which has the same function as example 1.
[0066] In the automatic plugging operation, the warning display rod 8 originally exposed outside the limiting cavity cover plate 10 is retracted into the disintegration limiting cavity along with the warning telescopic connecting rod 9, thereby reminding medical staff that the product has entered the plugging state, and the plugging state can also be clearly observed through the observation window 4, thereby implementing further pipeline replacement, adjustment, replacement and other operations.
[0067] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A medical precision time-controlled dissolution timing pin, comprising a housing (1), a liquid distribution cavity (11) opened within the housing (1), an inlet pipe (2) and an outlet pipe (3) respectively connected to both ends of the liquid distribution cavity (11), characterized in that: The shell (1) outer wall is provided with a disintegration limiting cavity (14), the disintegration limiting cavity (14) is communicated with the liquid distribution cavity (11) through the liquid inlet valve (13), the disintegration limiting cavity (14) is placed with self disintegration structure (15), the lower part of self disintegration structure (15) is installed with sealing push plate (20), the lower part of sealing push plate (20) is connected with the limiting cavity cover plate (10) through spring (21), the one side of liquid inlet valve (13) is provided with sealing through hole (17), the sealing through hole (17) is movably installed with the blocking rod (18), the top surface of blocking rod (18) is provided with the first magnet piece (19), the bottom of blocking rod (18) is connected with the top of sealing push plate (20) through push rod (16), the rotatable blocking piece (6) is installed in the liquid distribution cavity (11) through waterproof rotating shaft (5), the side of rotatable blocking piece (6) is provided with the second magnet block (7) that cooperates with the first magnet piece (19).
2. The medical precision time control lysis timing pin of claim 1, wherein: The waterproof rotating shaft (5) is arranged on the bottom surface of the middle part of the liquid distribution cavity (11), the outer wall of the rotatable blocking piece (6) is consistent with the inner wall of the liquid distribution cavity (11), and the stop block (12) matched with the outer edge of the rotatable blocking piece (6) is arranged on the top surface of the liquid distribution cavity (11); or the waterproof rotating shaft (5) is arranged on the bottom surface of the liquid distribution cavity (11) at the liquid inlet end position of the liquid outlet pipe (3).
3. The medical precision time control lysis timing pin of claim 1, wherein: The push rod (16) and the blocking rod (18) are both cylindrical rod structures, the diameter of the push rod (16) is not greater than the diameter of the blocking rod (18), the sealing through hole (17) is a circular through hole for connecting the liquid distribution cavity (11) and the disintegration limiting cavity (14), the length of the push rod (16) is not less than half the depth of the disintegration limiting cavity (14), the length of the blocking rod (18) is equal to the depth of the sealing through hole (17), and the length between the waterproof rotating shaft (5) and the liquid inlet valve (13) is not less than the length of the rotatable blocking piece (6).
4. A medical precise time control dissolving timing pin, comprising a shell (1), a liquid distribution cavity (11) opened in the shell (1), a liquid inlet pipe (2) and a liquid outlet pipe (3) respectively communicated with both ends of the liquid distribution cavity (11), characterized in that: The shell (1) outer wall is provided with a disintegration limiting cavity (14), the disintegration limiting cavity (14) is communicated with the liquid distribution cavity (11) through the liquid inlet valve (13), the disintegration limiting cavity (14) is placed with self disintegration structure (15), the lower part of self disintegration structure (15) is installed with sealing push plate (20), the lower part of sealing push plate (20) is connected with the limiting cavity cover plate (10) through spring (21), the one side of liquid inlet valve (13) is provided with sealing through hole (17), the sealing through hole (17) is sleeved with limiting pull rope (25), the top surface of sealing push plate (20) is installed with cutting blade (26), the rotatable blocking piece (6) is installed in the liquid distribution cavity (11) through waterproof torsion spring seat (22), one end of the limiting pull rope (25) is fixed on the top surface of the disintegration limiting cavity (14), and the other end of the limiting pull rope (25) is fixedly connected with the side surface of the rotatable blocking piece (6) in the compressed state of the waterproof torsion spring seat (22).
5. The medical precision time control lysis timing pin of claim 4, wherein: The waterproof torsion spring seat (22) is arranged on the bottom surface of the middle part of the liquid distribution cavity (11), the outer wall of the rotating sealing sheet (6) is in line with the inner wall of the liquid distribution cavity (11), and the stop block (12) matched with the outer edge of the rotating sealing sheet (6) is arranged on the top surface of the liquid distribution cavity (11); or the waterproof torsion spring seat (22) is arranged on the bottom surface of the liquid distribution cavity (11) at the liquid inlet end of the liquid outlet pipe (3).
6. The medical precision time control lysis timing pin of claim 4, wherein: The end surface of the rotating sealing sheet (6) on the side facing the liquid inlet pipe (2) is provided with a supporting liquid blocking block (23), the length between the waterproof torsion spring seat (22) and the liquid inlet valve (13) is not less than the length of the rotating sealing sheet (6), the blade limiting groove (24) matched with the cutting blade (26) is formed in the top wall of the liquid distribution cavity (11), and the limiting pull rope (25) is arranged at the opening of the groove bottom of the blade limiting groove (24).
7. A medical precise time control dissolving timing pin, comprising a shell (1), a liquid distribution cavity (11) opened in the shell (1), a liquid inlet pipe (2) and a liquid outlet pipe (3) respectively communicated with both ends of the liquid distribution cavity (11), characterized in that: The disintegration limiting cavity (14) is formed in the shell (1) below the position where the liquid distribution cavity (11) is communicated with the liquid outlet pipe (3), the disintegration limiting cavity (14) is communicated with the bottom of the liquid distribution cavity (11) through the liquid inlet valve (13), the self-disintegration structure (15) is arranged in the disintegration limiting cavity (14), the sealing push plate (20) is arranged at the lower part of the self-disintegration structure (15), the lower part of the sealing push plate (20) is connected with the limiting cavity cover plate (10) through the spring (21), the one-way liquid outlet valve (27) is arranged on one side of the liquid inlet valve (13), the gate limiting through hole (28) is movably arranged in the one-way liquid outlet valve (27), the bottom of the gate (29) is connected with the top of the sealing push plate (20) through the push rod (16).
8. The medical precision time release timing pin according to claim 4 or 7, characterized in that: The one-way liquid outlet valve (27) is arranged on one side of the liquid inlet valve (13) and communicates the liquid distribution cavity (11) and the disintegration limiting cavity (14).
9. The medical precision time control lysis timing pin of claim 7, wherein: The gate limiting through hole (28) is a square groove-shaped through hole structure communicating the disintegration limiting cavity (14) and the inner cavity of the liquid outlet pipe (3), the inner diameter of the gate limiting through hole (28) is in line with the outer diameter of the gate (29), and the length of the gate (28) is not less than the inner diameter of the liquid outlet pipe (3).
10. The medical precision time control lysis timing pin of claim 1, 4 or 7, wherein: The center of the limiting cavity cover plate (10) is provided with an elastic through hole, the elastic through hole movably sleeves the early warning display rod (8), the early warning display rod (8) is fixedly connected with the bottom of the sealing push plate (20) through the early warning elastic connecting rod (9), the observation window (4) is formed in at least one side of the shell (1), and the cross section of the liquid distribution cavity (11) is a square structure.