Miniature negative pressure adjustable drainage device for hand and foot microsurgery

Abstract

The micro negative pressure adjustable drainage apparatus comprises a collecting bottle, a liquid inlet pipe is fixedly installed at the top end of the collecting bottle, a connecting hose is fixedly installed at the top end of the liquid inlet pipe, and a pressure adjusting assembly for adjusting pressure is arranged on the periphery of the connecting hose. The pressure adjusting assembly comprises a connecting shell penetrating through the connecting hose, through holes symmetrically formed in the two ends of the connecting shell and an adjusting sleeve fixedly installed at the top end of the connecting shell, a pressing rod for pressing the connecting hose is slidably connected into the adjusting sleeve, and flanges are symmetrically and fixedly arranged on the periphery of the adjusting sleeve. Limiting slots are uniformly formed in one side, close to the flange, of one end of the pressing rod; through the pressure adjusting assembly, the flow ruler diameter of the connecting hose can be conveniently and rapidly adjusted according to the condition of a patient, the situation that the wound of the patient is cracked again due to the fact that the connecting hose cannot be adjusted during drainage and the pressure is too large is reduced, and the use safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and specifically to a micro negative pressure adjustable drain for hand and foot microsurgery. Background Art

[0002] Negative pressure wound therapy technology is a new technology developed in recent years for treating wounds. It uses a bio - semipermeable membrane to seal open wounds, and a special negative pressure machine generates a certain negative pressure, which acts on the debrided wound through a drainage tube and dressing. Current research has shown that this therapy can accelerate blood circulation at the wound site, significantly promote the entry of new blood vessels into the wound, stimulate the growth of granulation tissue, fully drain, reduce edema, reduce contamination, inhibit bacterial growth, directly accelerate wound healing, or create conditions for surgical repair. It is an efficient, simple, and economical pure physical therapy for promoting wound healing.

[0003] This technology has been widely used in European and American countries, and is hailed as a revolutionary technology for treating trauma, a new milestone in the field of wound care. The negative pressure wound drainage set uses a high - molecular medical sponge as an intermediary between the negative pressure drainage tube and the wound surface, and the wound surface is sealed with a bio - semi - permeable membrane to form a closed drainage system under the action of a negative pressure suction machine. During negative pressure treatment, the negative pressure can timely suck out the exudate from the wound surface, and the dressing can be changed once every 3 - 10 days. It has the characteristics of fast wound healing, low infection rate, fewer dressing changes, less use of antibacterial drugs, and reduced medical costs. It can accelerate the healing time of acute wounds by more than 60%, accelerate the healing speed of chronic wounds by 2 - 3 times, and reduce medical costs by 38%.

[0004] The micro negative pressure drain can accurately drain the tiny wounds on the hand and foot. The anatomical structure of the hand and foot is complex, with many fine tendons, nerves, and small blood vessels. This drain can penetrate into small gaps and wounds, such as small wounds at the end of the finger and wounds between the toes, and effectively drain exudate, blood, etc. When the micro negative pressure drain dedicated to hand and foot microsurgery is in use, it cannot adjust the pressure according to the different trauma sites of the patient, which may cause the wound to reopen due to excessive pressure, and the safety of use is relatively low. Summary of the Invention

[0005] The purpose of the present invention is to provide a micro negative pressure adjustable drain for hand and foot microsurgery to solve the problem that when the micro negative pressure drain dedicated to hand and foot microsurgery is in use, it cannot adjust the pressure according to the different trauma sites of the patient, which may cause the wound to reopen due to excessive pressure, and the safety of use is relatively low.

[0006] To achieve the above object, the present invention provides the following technical solution: A micro negative pressure adjustable drain for hand and foot microsurgery, including a collection bottle, a liquid inlet pipe is fixedly installed at the top of the collection bottle, a connection hose is fixedly installed at the top of the liquid inlet pipe, a pressure regulating assembly for adjusting pressure is arranged on the outer periphery of the connection hose, the pressure regulating assembly includes a connection housing installed in communication with the connection hose, through holes symmetrically opened at both ends of the connection housing, and an adjusting sleeve fixedly installed at the top of the connection housing, a pressure rod for pressing the connection hose is slidably connected inside the adjusting sleeve, blocking edges are symmetrically and fixedly arranged on the outer periphery of the adjusting sleeve, a plurality of limiting slots are evenly opened on one side of one end of the pressure rod close to the blocking edge, a limiting insertion rod adapted to the limiting slots is slidably connected in the middle of the blocking edge on the outer periphery of the adjusting sleeve, a rotating shaft is rotatably connected in the middle of the two blocking edges, and a connecting rod fixedly installed with the limiting insertion rod is fixedly installed at one end of the rotating shaft, and a pressing plate for pressing is fixedly installed at one end of the rotating shaft.

[0007] As a further scheme of the present invention: A return spring for facilitating the pressing and resetting of the pressing plate is fixedly installed in the middle of the two blocking edges.

[0008] As a further scheme of the present invention: A limiting assembly for limiting the rotating shaft is arranged at one end of the blocking edge, the limiting assembly includes a limiting housing fixedly installed at one end of the blocking edge, a first rotating shaft fixedly installed at one end of the rotating shaft, and a limiting gear arranged inside the limiting housing, the first rotating shaft penetrates the blocking edge and is fixedly installed with the limiting gear, a limiting slot is opened inside the limiting housing, a slot hole is opened at one end of the limiting housing, and a limiting rod inserted into the limiting slot for limiting is inserted at one end of the slot hole.

[0009] As a further scheme of the present invention: A second rotating shaft rotatably connected with the blocking edge is fixedly installed at one end of the rotating shaft on the opposite side of the first rotating shaft.

[0010] As a further scheme of the present invention: Transparent observation ports for facilitating the user to observe the connection hose for adjustment are symmetrically arranged at both ends of the connection housing.

[0011] As a further scheme of the present invention: A liquid outlet pipe for discharging the collected liquid medicine is fixedly installed at the top of the collection bottle.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] In the present invention, the connecting hose is passed through the connecting housing. Then, according to the situation, the pressing plate is pressed to drive the rotating shaft to rotate in the middle of the two sets of retaining edges. When the rotating shaft rotates, the limiting insertion rod is pulled out from the inside of the limiting slot at one end of the pressing rod through the connecting rod at one end. Then, the staff can slide and adjust the pressing rod inside the adjusting sleeve and move it closer to the connecting hose to squeeze it, thereby changing the flow diameter of the connecting hose. The larger the flow diameter of the connecting hose, the greater the pressure, and vice versa. At the same time, the adjustment distance of the pressing rod can be observed through the transparent observation port, increasing the convenience of adjustment. The pressure regulating component can conveniently and quickly adjust the flow diameter of the connecting hose according to the patient's condition, reducing the situation where the connecting hose cannot be adjusted during drainage, resulting in excessive pressure and causing the patient's wound to crack again, and increasing the safety of use;

[0014] In the present invention, the limiting rod is inserted into the limiting housing through the slot hole at one end of the limiting housing and inserted into the limiting slot to complete the limitation of the limiting gear. The limiting component can limit the position when the pressing plate is adjusted, reducing the situation where the pressing rod slides due to accidental touch of the pressing plate and increasing the stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural schematic diagram of the present invention;

[0016] Figure 2 is the structural schematic diagram of the connecting housing in the present invention;

[0017] Figure 3 is the present invention Figure 2 partial enlarged structural schematic diagram of part A therein;

[0018] Figure 4 is the cross-sectional structural schematic diagram of the connecting housing and the adjusting sleeve in the present invention;

[0019] Figure 5 is the partial structural schematic diagram of the adjusting sleeve in the present invention;

[0020] Figure 6 is the present invention Figure 5 partial enlarged structural schematic diagram of part B therein.

[0021] In the figure: 1, collection bottle; 2, liquid inlet pipe; 3, liquid outlet pipe; 4, connecting hose; 5, pressure regulating component; 51, connecting housing; 52, through hole; 53, transparent observation port; 54, adjusting sleeve; 55, pressing rod; 56, retaining edge; 57, limiting slot; 58, limiting insertion rod; 59, rotating shaft; 510, connecting rod; 511, pressing plate; 512, return spring; 513, second rotating shaft; 6, limiting component; 61, limiting housing; 62, first rotating shaft; 63, limiting gear; 64, limiting slot; 65, slot hole; 66, limiting rod. DETAILED DESCRIPTION OF THE INVENTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The embodiments of the present invention will be described below according to its overall structure.

[0024] The present invention discloses the following embodiments

[0025] Embodiment 1

[0026] Refer to Figure 1 and Figure 6, in the embodiment of the present invention, a micro negative pressure adjustable drain for hand and foot microsurgery includes a collection bottle 1. A liquid inlet pipe 2 is fixedly installed at the top of the collection bottle 1. A connection hose 4 is fixedly installed at the top of the liquid inlet pipe 2. A pressure regulating component 5 for regulating pressure is arranged on the outer periphery of the connection hose 4. The pressure regulating component 5 includes a connection housing 51 installed through the connection hose 4, through holes 52 symmetrically opened at both ends of the connection housing 51, and an adjusting sleeve 54 fixedly installed at the top of the connection housing 51. A pressure rod 55 for pressing the connection hose 4 is slidably connected inside the adjusting sleeve 54. The outer periphery of the adjusting sleeve 54 is symmetrically fixed with edge blocks 56. One end of the pressure rod 55 is evenly provided with limit slots 57 on the side close to the edge block 56. A limit insertion rod 58 adapted to the limit slots 57 is slidably connected in the middle of the outer periphery of the adjusting sleeve 54 and located between the two edge blocks 56. A rotating shaft 59 is rotatably connected in the middle of the two edge blocks 56. One end of the rotating shaft 59 is fixedly installed with a connecting rod 510 fixedly installed with the limit insertion rod 58. A pressing plate 511 for pressing is fixedly installed at one end of the rotating shaft 59.

[0027] Adopting the above solution: Through the pressure regulating component 5, the flow diameter of the connection hose 4 can be conveniently and quickly adjusted according to the patient's condition, reducing the situation that the connection hose 4 cannot be adjusted during drainage, resulting in excessive pressure and causing the patient's wound to split again, and increasing the safety of use.

[0028] Refer to Figure 1 and Figure 6 , a reset spring 512 for facilitating the pressing and resetting of the pressing plate 511 is fixedly installed in the middle of the two edge blocks 56;

[0029] Adopting the above solution: The reset spring 512 can reset the adjusted pressing plate 511, and then insert the limit insertion rod 58 into the limit slot 57 to complete the adjustment.

[0030] Refer to Figure 1 and Figure 6 , a limit component 6 for limiting the rotating shaft 59 is arranged at one end of the edge block 56. The limit component 6 includes a limit housing 61 fixedly installed at one end of the edge block 56, a first rotating shaft 62 fixedly installed at one end of the rotating shaft 59, and a limit gear 63 arranged inside the limit housing 61. The first rotating shaft 62 penetrates the edge block 56 and is fixedly installed with the limit gear 63. A limit slot 64 is opened inside the limit housing 61. A slot hole 65 is opened at one end of the limit housing 61. A limit rod 66 inserted and limited with the limit slot 64 is inserted at one end of the slot hole 65. A second rotating shaft 513 rotatably connected with the edge block 56 is fixedly installed at one end of the rotating shaft 59 and on the side opposite to the first rotating shaft 62;

[0031] Adopting the above solution: The limiting rod 66 is inserted into the inside of the limiting housing 61 through the slot hole 65 at one end of the limiting housing 61 and inserted into the limiting slot 64 to complete the limitation of the limiting gear 63. The limiting component 6 can limit the position when the pressing plate 511 is adjusted, reducing the situation that the pressing rod 55 slides due to accidental touch of the pressing plate 511 and increasing the stability of use.

[0032] Refer to Figure 1 and Figure 6 At both ends of the connection housing 51, symmetrically arranged are transparent observation ports 53 that facilitate the user to observe and adjust the connection hose 4. At the top of the collection bottle 1, a liquid discharge pipe 3 for discharging the collected liquid medicine is fixedly installed.

[0033] Adopting the above solution: The adjustment distance of the pressing rod 55 can be observed through the transparent observation port 53, increasing the convenience of adjustment.

[0034] Embodiment 2

[0035] Refer to Figure 1 and Figure 6 In the embodiment of the present invention, a micro negative pressure adjustable drainage device for hand and foot microsurgery includes a collection bottle 1. At the top of the collection bottle 1, a liquid inlet pipe 2 is fixedly installed. At the top of the liquid inlet pipe 2, a connection hose 4 is fixedly installed. A pressure regulating component 5 for adjusting the pressure is arranged on the outer periphery of the connection hose 4. The pressure regulating component 5 includes a connection housing 51 installed in communication with the connection hose 4, through holes 52 symmetrically opened at both ends of the connection housing 51, and an adjustment sleeve 54 fixedly installed at the top of the connection housing 51. A pressing rod 55 for pressing the connection hose 4 is slidably connected inside the adjustment sleeve 54. On the outer periphery of the adjustment sleeve 54, symmetrically fixed are stop edges 56. On one side of one end of the pressing rod 55 close to the stop edge 56, limiting slots 57 are evenly opened. On the outer periphery of the adjustment sleeve 54 and located in the middle of the stop edge 56, a limiting insertion rod 58 adapted to the limiting slots 57 is slidably connected. A rotating shaft 59 is rotatably connected in the middle of the two stop edges 56, and one end of the rotating shaft 59 is fixedly installed with a connecting rod 510 fixedly installed with the limiting insertion rod 58. One end of the rotating shaft 59 is fixedly installed with a pressing plate 511 for pressing.

[0036] Adopting the above solution: Through the pressure regulating component 5, the flow diameter of the connection hose 4 can be conveniently and quickly adjusted according to the patient's condition, reducing the situation that the connection hose 4 cannot be adjusted during drainage, resulting in excessive pressure and causing the patient's wound to split again, and increasing the safety of use.

[0037] Refer to Figure 1 and Figure 6 In the middle of the two stop edges 56, a return spring 512 for facilitating the pressing and resetting of the pressing plate 511 is fixedly installed.

[0038] Adopting the above solution: The reset spring 512 can reset the pressing plate 511 after adjustment, and then insert the limit insertion rod 58 into the limit slot 57 to complete the adjustment.

[0039] Referring to Figure 1 and Figure 6 As shown in [Figures] and [Figures], a limit component 6 for limiting the rotating shaft 59 is provided at one end of the rib 56. The limit component 6 includes a limit outer shell 61 fixedly installed at one end of the rib 56, a first rotating shaft 62 fixedly installed at one end of the rotating shaft 59, and a limit gear 63 arranged inside the limit outer shell 61. The first rotating shaft 62 penetrates through the rib 56 and is fixedly installed with the limit gear 63. A limit slot 64 is opened inside the limit outer shell 61, a slot hole 65 is opened at one end of the limit outer shell 61, and a limit rod 66 inserted and limited with the limit slot 64 is inserted at one end of the slot hole 65. A second rotating shaft 513 rotatably connected to the rib 56 is fixedly installed at one end of the rotating shaft 59 and on the side opposite to the first rotating shaft 62.

[0040] Adopting the above solution: Insert the limit rod 66 into the limit outer shell 61 through the slot hole 65 at one end of the limit outer shell 61 and insert it into the limit slot 64 to complete the limitation of the limit gear 63. Through the limit component 6, the pressing plate 511 can be limited when the adjustment is completed, reducing the situation that the pressure rod 55 slides due to accidental touch of the pressing plate 511 and increasing the stability of use.

[0041] Embodiment 3

[0042] Referring to Figure 1 and Figure 6 In the embodiment of the present invention, a micro negative pressure adjustable drainage device for hand and foot microsurgery includes a collection bottle 1. A liquid inlet pipe 2 is fixedly installed at the top of the collection bottle 1. A connection hose 4 is fixedly installed at the top of the liquid inlet pipe 2. A pressure regulating component 5 for regulating pressure is arranged on the outer periphery of the connection hose 4. The pressure regulating component 5 includes a connection outer shell 51 installed through the connection hose 4, through holes 52 symmetrically opened at both ends of the connection outer shell 51, and an adjustment sleeve 54 fixedly installed at the top of the connection outer shell 51. A pressure rod 55 for pressing the connection hose 4 is slidably connected inside the adjustment sleeve 54. The adjustment sleeve 54 is symmetrically and fixedly provided with ribs 56 on the outer periphery. A limit slot 57 is evenly opened on one side of one end of the pressure rod 55 close to the rib 56. A limit insertion rod 58 adapted to the limit slot 57 is slidably connected to the middle of the adjustment sleeve 54 and on the outer periphery of the rib 56. A rotating shaft 59 is rotatably connected to the middle of the two ribs 56, and a connecting rod 510 fixedly installed with the limit insertion rod 58 is fixedly installed at one end of the rotating shaft 59. A pressing plate 511 for pressing is fixedly installed at one end of the rotating shaft 59.

[0043] Adopting the above solution: through the pressure regulating component 5, the flow diameter of the connecting hose 4 can be conveniently and quickly adjusted according to the patient's condition, reducing the situation that the connecting hose 4 cannot be adjusted during drainage, resulting in excessive pressure and causing the patient's wound to split again, and increasing the safety of use.

[0044] Refer to Figure 1 and Figure 6 In the middle of the two sets of edge guards 56, a return spring 512 for facilitating the pressing and resetting of the pressing plate 511 is fixedly installed;

[0045] Adopting the above solution: the return spring 512 can reset the adjusted pressing plate 511, and then insert the limit insertion rod 58 into the limit slot 57 to complete the adjustment

[0046] The working principle of the present invention is as follows: when the staff conducts drainage on the patient, first pass the connecting hose 4 through the connecting housing 51, and then, according to the situation, press the pressing plate 511 to drive the rotating shaft 59 to rotate in the middle of the two sets of edge guards 56. When the rotating shaft 59 rotates, the limit insertion rod 58 will be pulled out from the inside of the limit slot 57 at one end of the pressing rod 55 through the connecting rod 510 at one end. Then, the staff can slide the pressing rod 55 inside the adjusting sleeve 54 and move closer to the connecting hose 4 to squeeze it, thereby changing the flow diameter of the connecting hose 4. The larger the flow diameter of the connecting hose 4, the greater the pressure, and vice versa. At the same time, through the transparent observation port 53, the adjustment distance of the pressing rod 55 can be observed, increasing the convenience of adjustment. Through the pressure regulating component 5, the flow diameter of the connecting hose 4 can be conveniently and quickly adjusted according to the patient's condition, reducing the situation that the connecting hose 4 cannot be adjusted during drainage, resulting in excessive pressure and causing the patient's wound to split again, and increasing the safety of use. When the adjustment is completed, the staff only needs to release the pressing plate 511, and the pressing plate 511 can be reset by the return spring 512 in the middle of the two sets of edge guards 56, and then the limit insertion rod 58 is inserted into the limit slot 57 to complete the adjustment. At the same time, when the adjustment is completed, the limit gear 63 connected to one end of the first rotating shaft 62 at one end of the rotating shaft 59 stops rotating. At this time, the limit rod 66 is inserted into the inside of the limit housing 61 through the slot hole 65 at one end of the limit housing 61 and inserted into the limit slot 64 to complete the limitation of the limit gear 63. Through the limit component 6, the pressing plate 511 can be limited when the adjustment is completed, reducing the situation that the pressing rod 55 slides due to accidental touch of the pressing plate 511, and increasing the stability of use.

[0047] The above-mentioned is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A micro negative pressure adjustable drain for hand and foot microsurgery, characterized in that: The invention comprises a collecting bottle (1), a liquid inlet pipe (2) is fixedly mounted on the top of the collecting bottle (1), a connecting hose (4) is fixedly mounted on the top of the liquid inlet pipe (2), a pressure regulating assembly (5) for regulating pressure is arranged on the outer periphery of the connecting hose (4), the pressure regulating assembly (5) comprises a connecting shell (51) which is installed through the connecting hose (4), through holes (52) symmetrically arranged at both ends of the connecting shell (51), and an adjusting sleeve (54) fixedly mounted on the top of the connecting shell (51), and a pressure rod (55) for applying pressure to the connecting hose (4) is slidably connected inside the adjusting sleeve (54). The outer periphery of the adjusting sleeve (54) is symmetrically fixed with retaining edges (56), and a limiting slot (57) is evenly arranged on one side of one end of the pressure rod (55) close to the retaining edge (56). A limiting plug rod (58) adapted to the limiting slot (57) is slidably connected to the outer periphery of the adjusting sleeve (54) and located in the middle of the retaining edge (56). A rotating shaft (59) is rotatably connected in the middle of the two groups of retaining edges (56), and a connecting rod (510) fixedly installed with the limiting plug rod (58) is fixedly installed at one end of the rotating shaft (59), and a pressing plate (511) for pressing is fixedly installed at one end of the rotating shaft (59).

2. A micro negative pressure adjustable drain for hand and foot microsurgery according to claim 1, characterized in that: A return spring (512) is fixedly installed in the middle of the two groups of retaining edges (56) to facilitate the pressing and returning of the pressure plate (511).

3. The micro negative pressure adjustable drain for hand and foot microsurgery according to claim 1, characterized in that: A limiting assembly (6) for limiting the rotation shaft (59) is arranged at one end of the retaining edge (56), and the limiting assembly (6) comprises a limiting shell (61) fixedly mounted on one end of the retaining edge (56), a first rotating shaft (62) fixedly mounted on one end of the rotating shaft (59), and a limiting gear (63) arranged inside the limiting shell (61), the first rotating shaft (62) passes through the retaining edge (56) and is fixedly mounted with the limiting gear (63), a limiting groove (64) is arranged inside the limiting shell (61), a slot hole (65) is arranged at one end of the limiting shell (61), and a limiting rod (66) for limiting the position by inserting into the limiting groove (64) is inserted at one end of the slot hole (65).

4. The micro negative pressure adjustable drain for hand and foot microsurgery according to claim 3, characterized in that: A second rotating shaft (513) rotatably connected to the retaining edge (56) is fixedly mounted on one end of the rotating shaft (59) and located on a side opposite to the first rotating shaft (62).

5. The micro negative pressure adjustable drain for hand and foot microsurgery according to claim, characterized in that: Transparent observation ports (53) are symmetrically arranged at both ends of the connection housing (51) for users to observe the connection hose (4) and make adjustments.

6. The micro negative pressure adjustable drain for hand and foot microsurgery according to claim 1, characterized in that: A liquid outlet pipe (3) for discharging the collected liquid medicine is fixedly mounted on the top of the collecting bottle (1).

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