Surgical operation wound drainage dosing device

Abstract

The invention provides a surgical operation wound drainage and administration device which comprises a sponge imbedding sheet, a plurality of drainage tubes and administration tubes which are distributed in a pairwise staggered mode are arranged in the sheet, and a plurality of drainage holes and administration holes are formed in the peripheries of the drainage tubes and the administration tubes respectively. A main pipe strip perpendicular to the drainage pipe and the dosing pipe is arranged on one side of the sponge imbedding piece, a drainage cavity and a dosing cavity are formed in the main pipe strip, and the drainage pipe and the dosing pipe are communicated with the drainage cavity and the dosing cavity respectively. And the main pipe strip is outwards connected with a liquid outlet pipe and a liquid inlet pipe which are respectively communicated with the drainage cavity and the dosing cavity. The device further comprises a drainage bag communicated with the liquid outlet pipe and a medicine storage tank communicated with the liquid inlet pipe. A piston piece is arranged in the medicine storage tank, high-elasticity compression sponge is arranged on the side, away from the liquid inlet pipe, of the piston piece and stores medicine liquid, air inlet micropores are formed in the end, close to the high-elasticity compression sponge, of the medicine storage tank, and a hole blocking piece is detachably connected to the outer side. According to the device, all-directional and efficient drainage and continuous and uniform drug administration can be achieved, wound impregnation is effectively avoided, and the postoperative wound nursing accuracy and the treatment effect are improved.

Description

Technical Field

[0001] This invention belongs to the field of medical auxiliary device technology and relates to a surgical wound drainage and drug delivery device. Background Technology

[0002] In modern surgical clinical practice, postoperative wound care is a crucial aspect affecting the quality of patient recovery and the incidence of complications. If blood, exudate, inflammatory mediators, and potential pathogens accumulate in the wound and are not removed promptly and effectively, they can easily induce infection, delay healing, and even lead to deep tissue necrosis or systemic inflammatory reactions. Therefore, wound drainage, as a routine postoperative care measure, has long been considered an important means of ensuring wound cleanliness and promoting tissue repair.

[0003] Traditional drainage techniques primarily rely on passive or active drainage devices, such as negative pressure drainage balls, drainage bags, or closed negative pressure drainage systems (VSD). Their core structure typically consists of a drainage tube with a single-ended opening. This tube is inserted percutaneously into the deep wound cavity, relying on gravity, capillary action, or external negative pressure to drain the fluid. However, these devices have significant limitations in practical application: because the drainage tube only has an opening at the tip, the drainage range is limited to the area near the tube end, making it difficult to cover the entire wound cavity. Especially for irregularly shaped or multi-cavity wounds, fluid easily accumulates in drainage blind spots, resulting in incomplete drainage and increasing the risk of infection and tissue adhesions.

[0004] Meanwhile, postoperative wound care often requires the local application of antibiotics, anti-inflammatory drugs, or healing-promoting factors to prevent infection, control inflammation, and accelerate repair. Current administration methods mostly involve percutaneous injection, dressing infiltration, or temporary catheterization, all of which are single-dose or intermittent administration methods. These methods not only result in uneven drug distribution but also make it difficult to establish an effective and sustained drug concentration gradient within the wound cavity. Summary of the Invention

[0005] The purpose of this invention is to provide a surgical wound drainage and drug delivery device that can achieve comprehensive and efficient drainage, as well as continuous and uniform drug delivery, effectively avoiding wound maceration and improving the precision of postoperative wound care and treatment effect.

[0006] To solve the above-mentioned technical problems, the present invention provides a surgical wound drainage and drug delivery device, including a sponge insert sheet. The sponge insert sheet contains multiple drainage tubes and drug delivery tubes arranged in a staggered pattern. Multiple drainage holes are formed on the outer periphery of each drainage tube, and multiple drug delivery holes are formed on the outer periphery of each drug delivery tube. A main tube strip perpendicular to the drainage tubes and drug delivery tubes is provided on one side of the sponge insert sheet. The main tube strip contains a drainage cavity and a drug delivery cavity arranged along its length. Each drainage tube communicates with the drainage cavity, and each drug delivery tube communicates with the drug delivery cavity. The main tube strip is externally connected to an outlet tube communicating with the drainage cavity and an inlet tube communicating with the drug delivery cavity. It also includes a drainage bag connected and communicating with the outlet pipe, and a medicine storage tank connected and communicating with the inlet pipe. The medicine storage tank is provided with a piston plate. A highly elastic compression sponge is provided on the side of the piston plate away from the inlet pipe. Liquid medicine is stored in the medicine storage tank on the side of the piston plate away from the inlet pipe. An air inlet micro-hole communicating with the interior of the medicine storage tank is opened at the end of the medicine storage tank near the highly elastic compression sponge. A plugging piece for blocking the air inlet micro-hole is detachably connected to the outside of the medicine storage tank.

[0007] By employing the above-mentioned technical solution, during the surgical procedure, the surgeon first appropriately cuts the sponge insert according to the shape and size of the wound and places it inside the wound. Because the sponge insert is made of gelatin composite sponge material, it has excellent biocompatibility and absorbency, allowing it to conform well to the wound tissue. Next, the drainage bag and drug reservoir are connected to the outlet and inlet tubes, respectively. When drainage is needed, due to the multiple drainage holes on the outer periphery of the drainage tube and the porous structure of the sponge insert, the fluid in the wound is drawn into the drainage tube through these holes, and then flows into the drainage bag through the drainage cavity and outlet tube, achieving comprehensive and efficient drainage, preventing fluid accumulation in the wound cavity, and effectively avoiding wound maceration. When medication is needed, the plug on the outside of the drug reservoir is first removed. Air then slowly enters the drug reservoir, and the highly elastic compressible sponge slowly absorbs the air and expands, pushing the piston plate to move and slowly squeezing out the stored medication. After the medication enters the administration cavity, it is evenly distributed on the sponge insert through multiple administration holes on the periphery of the administration tube and the porous structure of the sponge insert, thus enabling continuous and uniform administration of medication to the wound. This creates an effective and lasting drug concentration gradient within the wound cavity, preventing infection, controlling inflammation, and accelerating repair.

[0008] The present invention is further configured such that the free ends of the outlet pipe and the inlet pipe are each provided with a sealed connecting pipe head communicating with them, and the open end of each sealed connecting pipe head is provided with a silicone sealing sheet. The drainage bag and the medicine storage tank are each provided with a connecting joint communicating with their interiors. Each connecting joint includes a connecting tube. Each sealed connecting pipe head can extend into the corresponding connecting tube. A support plate is provided in each connecting tube away from its free end. A puncture tube is provided upward on each support plate. Each puncture tube communicates with the drainage bag or the medicine storage tank. The free end of each puncture tube is a pointed tip. A silicone piston block is movably arranged in each connecting tube. A support spring for the corresponding puncture tube is provided between each silicone piston block and the corresponding support plate. Squeezing the silicone piston block inward compresses the support spring, which allows the puncture tube to penetrate the silicone piston block upward.

[0009] The present invention is further configured such that one end of the main tube is open, and a rubber plug is detachably connected to the open end of the main tube. The rubber plug is provided with two plugs that respectively block the ends of the drainage cavity and the drug delivery cavity.

[0010] The present invention is further configured such that the sponge insert is made of gelatin composite sponge material.

[0011] The present invention is further configured such that the highly elastic compressed sponge is hot-pressed at high temperature and then placed into the medicine storage tank.

[0012] The present invention is further configured such that the plugging piece is connected to the outer wall of the medicine storage tank by adhesive bonding, and the adhesive portion of the plugging piece does not block the air inlet micropore.

[0013] Compared with the prior art, the present invention has the following beneficial effects: Firstly, this device integrates the dual functions of drainage and drug administration. In traditional techniques, drainage and drug administration often require different instruments and procedures. However, the device of this invention uses a sponge to insert drainage tubes and drug administration tubes that are interspersed within the tablet, along with a drainage bag and a drug reservoir connected to them. This allows drainage and drug administration to be performed in stages, reducing the time and complexity of surgical procedures and improving treatment efficiency.

[0014] Secondly, the comprehensive and efficient drainage design effectively reduces the risk of infection. Because the drainage tube has multiple drainage holes on its outer periphery, combined with the porous structure of the sponge insert, the fluid in the wound can be comprehensively and quickly drawn into the drainage tube, preventing the accumulation of fluid in the wound cavity and effectively avoiding wound maceration. This reduces the possibility of infection and tissue adhesion, ensuring smooth wound healing.

[0015] Third, the continuous and uniform drug delivery method enhances the therapeutic effect. By slowly pushing the piston plate with a highly elastic compression sponge, the drug solution is evenly squeezed out and distributed in the wound through the delivery tube and sponge insertion plate. This delivery method can form an effective and lasting drug concentration gradient in the wound cavity, ensuring that the drug can fully play its role in preventing infection, controlling inflammation and accelerating repair.

[0016] Fourth, the sponge insert of the present invention can be freely cut according to the shape and size of the wound to meet different needs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial cross-sectional view used to show the sponge inserted into the drainage tube and drug delivery tube inside the tablet; Figure 3 This is a partial sectional view used to show the internal structure of the medicine storage tank; Figure 4 Used to display the air inlet micro-holes and plugs at the bottom of the medicine storage tank; Figure 5 Used to demonstrate the silicone sealing sheet inside the sealed connection tube head; Figure 6 It is a partial sectional view used to show the internal structure of the connector.

[0018] The components are as follows: 1. Sponge insertion piece; 2. Drainage tube; 3. Drug administration tube; 4. Drainage hole; 5. Drug administration port; 6. Main tube strip; 7. Drainage cavity; 8. Drug administration cavity; 9. Rubber stopper; 10. Plug; 11. Drainage bag; 12. Drug storage tank; 13. Piston plate; 14. High-elasticity compressed sponge; 15. Air inlet micropore; 16. Plug plate; 17. Sealing connection tube head; 18. Silicone sealing plate; 19. Connector tube; 20. Support plate; 21. Puncture tube; 22. Silicone piston block; 23. Support spring; 24. Discharge tube; 25. Inlet tube. Detailed Implementation

[0019] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a surgical wound drainage and drug delivery device according to the present invention. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, used only to facilitate and clarify the illustration of the embodiments of the present invention. The same or similar reference numerals in the drawings represent the same or similar parts.

[0020] Example, refer to Figure 1-6A surgical wound drainage and drug delivery device includes a sponge insert 1 made of gelatin composite sponge material. The sponge insert 1 has multiple drainage tubes 2 and drug delivery tubes 3 arranged in pairs and distributed alternately. The drainage tubes 2 have multiple drainage holes 4 on their outer periphery, so that the drainage holes 4 can be drawn and drained through the porous structure of the sponge insert 1. The drug delivery tubes 3 have multiple drug delivery holes 5 on their outer periphery. Through the drug delivery holes 5 and the porous structure of the sponge insert 1, the drug solution can be evenly distributed on the sponge insert 1, so that the drug can be delivered evenly. A main tube 6, consisting of a vertical drainage tube 2 and a drug delivery tube 3, is provided on one side of the sponge insertion pad 1. The main tube 6 contains a drainage cavity 7 and a drug delivery cavity 8 arranged along its length. One end of the main tube 6 is open, and a rubber stopper 9 is detachably connected to the open end. The rubber stopper 9 has two plugs 10 that respectively block the ends of the drainage cavity 7 and the drug delivery cavity 8. Each drainage tube 2 communicates with the drainage cavity 7, and each drug delivery tube 3 communicates with the drug delivery cavity 8. The main tube 6 is externally connected to an outlet tube 24 communicating with the drainage cavity 7 and an inlet tube 25 communicating with the drug delivery cavity 8.

[0021] It also includes a drainage bag 11 connected and communicating with the outlet pipe 24. It also includes a medicine storage tank 12 connected and communicating with the inlet pipe 25. A piston plate 13 is provided inside the medicine storage tank 12. A high-elasticity compression sponge 14 is provided inside the medicine storage tank 12 on the side of the piston plate 13 away from the inlet pipe 25. The high-elasticity compression sponge 14 is put into the medicine storage tank 12 after being hot-pressed at high temperature. The medicine liquid is stored inside the medicine storage tank 12 on the side of the piston plate 13 away from the inlet pipe 25. The medicine storage tank 12 has an air inlet micro-hole 15 at one end near the high-elasticity compression sponge 14, which communicates with the interior of the micro-hole. A plugging piece 16 is detachably connected to the outside of the medicine storage tank 12 to block the air inlet micro-hole 15. The plugging piece 16 is connected to the outer wall of the medicine storage tank 12 by adhesive. The adhesive part of the plugging piece 16 does not block the air inlet micro-hole 15. After the plugging piece 16 is torn off, air slowly enters into the medicine storage tank 12. The high-elasticity compression sponge 14 slowly absorbs the air and expands, pushing the piston plate 13 to move and slowly squeezing out the medicine.

[0022] Both the outlet tube 24 and the inlet tube 25 have a sealed connecting tube head 17 at their free ends, and each sealed connecting tube head 17 has a silicone sealing sheet 18 at its open end. The drainage bag 11 and the medicine storage tank 12 are each provided with a connecting joint that communicates with their interiors. Each connecting joint includes a connecting tube 19. Each sealed connecting tube head 17 can extend into the corresponding connecting tube 19. Each connecting tube 19 has a support plate 20 located away from its free end. Each support plate 20 has a puncture tube 21 extending upwards. Each puncture tube 21 communicates with the drainage bag 11 or the medicine storage tank 12. The free end of each puncture tube 21 is a pointed tip. Each connecting tube 19 has a movable silicone piston block 22. Each silicone piston block 22 and the corresponding support plate 20 are provided with a support spring 23 that is sleeved around the corresponding puncture tube 21. Squeezing the silicone piston block 22 inwards compresses the support spring 23, allowing the puncture tube 21 to pierce the silicone piston block 22 upwards. After the sealing connection tube head 17 is inserted into the connector tube 19, the silicone piston block 22 can be squeezed to compress the support spring 23, exposing the puncture tube 21 to puncture the silicone sealing sheet 18, so that the drainage bag 11 is connected to the outlet tube 24, or the medicine storage tank 12 is connected to the inlet tube 25.

[0023] Working principle: During the procedure, the surgeon first cuts the sponge insert 1 to the appropriate size and shape of the wound and places it inside. Because the sponge insert 1 is made of gelatin composite sponge, it has good biocompatibility and absorbency, allowing it to conform well to the wound tissue. Next, the drainage bag 11 and the medicine reservoir 12 are connected to the outlet tube 24 and inlet tube 25 respectively via a sealed connecting tube head 17. When drainage is needed, because the drainage tube 2 has multiple drainage holes 4 on its outer periphery, and the sponge insert 1 has a porous structure, the fluid in the wound is drawn into the drainage tube 2 through the drainage holes 4, and then flows into the drainage bag 11 through the drainage cavity 7 and the outlet tube 24, achieving comprehensive and efficient drainage, preventing fluid accumulation in the wound cavity and avoiding wound maceration. When medication is needed, first tear off the plug 16 on the outside of the storage tank 12. At this time, air slowly enters the storage tank 12. The highly elastic compression sponge 14 slowly absorbs the air and expands, pushing the piston plate 13 to move and slowly squeezing out the liquid medication stored in the storage tank 12. After the liquid medication enters the medication chamber 8, it is evenly distributed on the sponge insertion plate 1 through the multiple medication holes 5 on the outer periphery of the medication tube 3 and the porous structure of the sponge insertion plate 1. This allows for continuous and uniform medication delivery to the wound, forming an effective and lasting drug concentration gradient within the wound cavity, preventing infection, controlling inflammation, and accelerating repair.

[0024] It should also be noted that all terms such as "set up" and similar descriptive words in this application (especially the specification) indicate that two structures have or exist a connection relationship. However, the specific means by which the two are connected are not limited in detail, and are usually conventional connection methods. That is, the means should be understood as prior art and do not need to be elaborated. For example, "m is set up with n" only indicates that structure m has structure n, and whether the two are connected by welding, riveting, adhesive, or integral molding is within the scope of protection of this application. Similarly, "x is rotatably set up with y" only indicates that y and x can rotate relative to each other, and whether the two are connected by a bearing, or whether y directly passes through x and is rotatably connected to x, or other feasible methods, are all within the scope of protection of this application.

[0025] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A surgical wound drainage and drug delivery device, characterized in that, The device includes a sponge insert (1), which contains multiple drainage tubes (2) and drug delivery tubes (3) arranged in pairs. The drainage tubes (2) have multiple drainage holes (4) on their outer periphery, and the drug delivery tubes (3) have multiple drug delivery holes (5) on their outer periphery. One side of the sponge insert (1) is provided with a main tube (6) perpendicular to the drainage tubes (2) and the drug delivery tubes (3). The main tube (6) contains a drainage cavity (7) and a drug delivery cavity (8) arranged along its length. Each drainage tube (2) is connected to the drainage cavity (7), and each drug delivery tube (3) is connected to the drug delivery cavity (8). The main tube (6) is connected outward to an outlet tube (24) connected to the drainage cavity (7) and an inlet tube (25) connected to the drug delivery cavity (8). It also includes a drainage bag (11) connected and communicating with the outlet pipe (24), and a medicine storage tank (12) connected and communicating with the inlet pipe (25). A piston plate (13) is provided inside the medicine storage tank (12). A high-elasticity compression sponge (14) is provided inside the medicine storage tank (12) on the side of the piston plate (13) away from the inlet pipe (25). Liquid medicine is stored inside the medicine storage tank (12) on the side of the piston plate (13) away from the inlet pipe (25). An air inlet microhole (15) communicating with the interior of the medicine storage tank (12) is opened at one end of the medicine storage tank (12) near the high-elasticity compression sponge (14). A plugging piece (16) for blocking the air inlet microhole (15) is detachably connected to the outside of the medicine storage tank (12).

2. The surgical wound drainage and drug delivery device according to claim 1, characterized in that, The free ends of the outlet pipe (24) and the inlet pipe (25) are each provided with a sealed connecting pipe head (17) communicating with them. Each sealed connecting pipe head (17) has a silicone sealing sheet (18) at its open end. The drainage bag (11) and the medicine storage tank (12) are each provided with a connecting joint communicating with their interiors. Each connecting joint includes a connector tube (19). Each sealed connecting pipe head (17) can extend into the corresponding connector tube (19). Each connector tube (19) has a support piece (20) located away from its free end. Each support piece (20) extends towards... The tube is equipped with a puncture tube (21), each puncture tube (21) is connected to the drainage bag (11) or the medicine storage tank (12), the free end of each puncture tube (21) is a pointed tip, and a silicone piston block (22) is movably arranged inside each connector tube (19). A support spring (23) for the corresponding puncture tube (21) is provided between each silicone piston block (22) and the corresponding support plate (20). By squeezing the silicone piston block (22) inward, the support spring (23) is compressed, which allows the puncture tube (21) to penetrate the silicone piston block (22) upward.

3. The surgical wound drainage and drug delivery device according to claim 1, characterized in that, One end of the main tube (6) is open, and a rubber plug (9) is detachably connected to the open end of the main tube (6). The rubber plug (9) is provided with two plugs (10) that respectively block the ends of the drainage cavity (7) and the drug administration cavity (8).

4. The surgical wound drainage and drug delivery device according to claim 1, characterized in that, The sponge insert (1) is made of gelatin composite sponge material.

5. A surgical wound drainage and drug delivery device according to claim 1, characterized in that, The high-elasticity compressed sponge (14) is hot-pressed at high temperature and then placed into the medicine storage tank (12).

6. A surgical wound drainage and drug delivery device according to claim 1, characterized in that, The plugging piece (16) is connected to the outer wall of the medicine storage tank (12) by adhesive bonding, and the adhesive part of the plugging piece (16) does not block the air inlet micro-hole (15).

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