A hepatobiliary surgical fluid drainage device
Through the internal and external tube structure and normal saline dilution technology, the blockage problem of hepatobiliary surgery fluid drainage device was solved, and the smooth discharge of fluid was achieved and the postoperative recovery effect was improved.
Patent Information
- Application Number
- CN202210539341.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-05-17
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2042-05-17
AI Technical Summary
Existing hepatobiliary surgical fluid drainage devices are prone to clogging when faced with viscous fluid or lumpy tissue such as blood clots, resulting in the inability to drain the fluid smoothly and affecting the patient's postoperative recovery.
A hepatobiliary surgical fluid drainage device was designed, which adopts an inner tube and outer tube structure. A peristaltic pump is used to inject physiological saline to dilute the accumulated fluid, and the fluid is extracted through the negative pressure of the inner tube. Combined with the retaining ring and sealing ring structure, it ensures the smooth discharge of the accumulated fluid and the fixation of the instrument. When the inner tube is blocked, it can be flushed to clear it.
Effectively dilute viscous effusion, reduce the risk of blockage, ensure smooth discharge of effusion, reduce patient pain, and improve postoperative recovery effect.
Smart Images
Figure CN114870118B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of medical devices, in particular to a hepatobiliary surgical effusion drainage device. Background Art
[0002] A fluid drain is a medical device used for clinical surgical drainage. It guides pus, blood, and fluid accumulated between human tissues or in body cavities to the outside of the body to prevent postoperative infection and promote wound healing. A hepatobiliary surgical fluid drain draws pus or blood produced by hepatobiliary lesions out of the body, reducing the possibility of postoperative infection and accelerating wound healing.
[0003] Publication number 214105387U provides a nursing drainage device for hepatobiliary surgery, including a connecting bottle, a connecting bottle, the top of the connecting bottle is connected to a connecting block by a thread, and the top of the connecting block is fixedly connected to a drainage tube; the nursing drainage device avoids fluid accumulation when replacing the collection bottle. The device can still collect the accumulated fluid, and at the same time prevents the device from shaking and causing the accumulated fluid to spill out of the device.
[0004] The above-mentioned nursing drainage device has defects. If the accumulated fluid in the liver and gallbladder is viscous, or accompanied by lumpy tissues such as blood clots, it will block the drainage tube, resulting in the inability to drain the accumulated fluid smoothly, affecting the patient's postoperative recovery effect.
[0005] To this end, the present invention provides a hepatobiliary surgical fluid drainage device. Summary of the Invention
[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.
[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: the hepatobiliary surgical fluid drainage device described in the present invention comprises an inner tube and an outer tube; a feed port is provided on the outer ring surface and one end face of the outer tube, the other end of the outer tube is connected to a hollow disk, the hollow disk is connected to an external physiological saline bag through a liquid inlet pipe, the middle position of the hollow disk is fixed to the outer tube, the other end of the outer tube is provided with a plurality of water inlet holes along the length direction of the outer tube, the water inlet holes are connected to the hollow disk, a plurality of drainage holes are provided in the water inlet holes, and the drainage holes penetrate to the outer surface of the outer tube; a ventilation pipe is fixed to the hollow disk, the ventilation pipe is connected to the outer tube, and the inner tube is inserted into the outer tube; one end of the inner tube A liquid extraction port is provided on the outer ring surface of the end, and the other end of the inner tube extends to the other end of the outer tube and is connected to an external peristaltic pump; the effusion drainage device is used for clinical surgical drainage, and is a medical device that guides pus, blood, and liquid accumulated between human tissues or in body cavities to the outside of the body to prevent postoperative infection and promote wound healing; the hepatobiliary surgical effusion drainage device draws pus or blood produced by hepatobiliary lesions out of the body, reduces the possibility of postoperative infection, and accelerates wound healing; when the effusion drainage device draws out viscous effusions, or when the effusions are accompanied by lumpy tissues such as blood clots, the drainage tube will be blocked, resulting in the inability of the effusions to be discharged smoothly, affecting the patient Postoperative recovery effect: physiological saline is injected into the hollow disk from the liquid inlet tube through the peristaltic pump, and then the physiological saline flows along the water inlet hole and is discharged into the socket of the patient's body from the drainage hole. The physiological saline mixes with the accumulated fluid and dilutes the accumulated fluid. At the same time, the other end of the inner tube is also connected to the peristaltic pump. The peristaltic pump creates a negative pressure in the inner tube and draws the accumulated fluid in the body socket into the outer tube. The accumulated fluid flows along the feed port on the outer tube into the outer tube, and then flows along the liquid extraction port into the inner tube, and finally is discharged from the body along the inner tube, thereby realizing the extraction of fluid accumulated in the liver and gallbladder; the viscous accumulated fluid can be diluted and then extracted and discharged through the inner tube to reduce the blockage of the accumulated fluid. The femoral drainage device has the advantages of smooth discharge of effusion, which helps the patient's postoperative recovery; through the hollow disc, medical staff can insert the outer tube into the patient's body, and then transfer the hollow disc to the patient's skin through medical tape. Thanks to the fixation of the femoral drainage device, the swing amplitude of the outer tube in the body is reduced, and the patient's pain is reduced; and when the inner tube encounters a blood clot or soft tissue and is blocked in the inner tube, the inner tube can be pulled out from the outer tube, and then the inner tube can be flushed and unblocked with physiological saline, and then the inner tube can be inserted into the outer tube again to drain the effusion, which is convenient for operation and solves the blockage problem in time.
[0008] Preferably, the outer ring surface of the inner tube is provided with a plurality of liquid extraction ports, the liquid extraction ports are in the shape of a waist-shaped hole, and a retaining ring is provided on the upper and lower sides of the liquid extraction port, the inner ring of the retaining ring is fixedly connected to the inner tube, and the outer ring of the retaining ring is attached and extruded on the inner side wall of the outer tube; a reinforcing rod is provided at the position between adjacent liquid extraction ports, and the reinforcing rod is wrapped inside the side wall of the inner tube; the larger the diameter of the liquid extraction port is, the better, which helps to draw blood clots or soft tissue into the inner tube, but when the diameter is large, the strength of the liquid extraction port is reduced. For this reason, a reinforcing rod is provided to improve the strength of the liquid extraction port, so as to prevent the blood clots or soft tissues in the outer tube from squeezing and bending the inner tube after the inner tube is inserted into the outer tube, thereby affecting the extraction effect of the liquid extraction port; the retaining ring is provided, and during the process of the inner tube being drawn out of the outer tube, the edge of the retaining ring cleans the feed port of the outer tube, scrapes off the blood clots or soft tissues adhering to the feed port, and thanks to the extraction of blood clots or soft tissues, it helps the accumulated fluid in the body to flow smoothly through the feed port into the outer tube.
[0009] Preferably, each of the retaining rings is trumpet-shaped, with the wide-mouth end of the retaining ring arranged toward one end of the outer tube, and the edge of the retaining ring rolled outward; the retaining ring is made of elastic silicone material, and during the process of inserting the inner tube into the outer tube, the peristaltic pump injects physiological saline into the inlet on the body, and then the diluted accumulated fluid flows into the outer tube. At this time, the inner tube is inserted, and the accumulated fluid pushes down the edge of the retaining ring, causing the edge of the retaining ring to bend downward, reducing the contact between the edge of the retaining ring and the inner ring of the outer tube, and reducing the possibility of blood clots or soft tissue at the feed port position flowing into the inlet again; when the inner tube is pulled out, the peristaltic pump connected to the liquid inlet pipe stops working, and the peristaltic pump connected to the inner tube continues to work. At this time, negative pressure is formed in the outer tube, and the retaining ring bends in the opposite direction toward one end of the outer tube, so that the rolled portion of the baffle gradually becomes perpendicular to the inner surface of the outer tube, and scrapes off the blood clots or soft tissue outside the feed port and takes them away from the outer tube, thereby improving the cleaning effect of the baffle on the outer tube, benefiting from the extraction of fluid accumulated in the patient's body.
[0010] Preferably, the cross-section of each drainage hole is trumpet-shaped, the wide-mouth end outside the drainage hole faces the outside of the outer tube, and the outer end of the drainage hole is provided with a water baffle and an elastic threaded strip; the inner convex surface of the water baffle is placed in the drainage hole, and the inner convex edge of the water baffle is fixed to the outer end surface of the drainage hole by a plurality of elastic threaded strips, and the edge of the water baffle is rolled toward the drainage hole; during the process of flushing the drainage hole with physiological saline, the hydraulic pressure of the physiological saline acts on the water baffle, the water baffle drives the elastic threaded strip to stretch, and a gap leaks out between the edge of the water baffle and the drainage hole, and the physiological saline is discharged from the gap. At this time, the physiological saline is discharged along the outer ring surface of the outer tube, and the physiological saline does not impact vertically in the socket on the body, reducing the impact damage of the physiological saline on the healthy soft tissue in the socket, reducing the pain of the patient; and the edge of the water baffle is rolled toward the drainage hole, so that the edge of the water baffle and the surface of the outer tube tend to be flat, reducing the scraping of the soft tissue in the socket by the water baffle, and reducing the pain of the patient.
[0011] Preferably, a ring-shaped notch is provided on the outer tube, the notch is close to the other end of the outer tube, and a ring-shaped elastic ring is provided in the notch, with both ends of the elastic ring fixed to the notch, a cavity is formed between the elastic ring and the inner wall of the outer tube, and the water inlet is connected to the cavity, the middle position of the elastic ring is convex outward, and the wall thickness of the middle part of the elastic ring is smaller than the wall thickness of the two ends of the elastic ring; after physiological saline is injected into the water inlet, the hydraulic pressure of the physiological saline lifts the elastic ring, so that the convexity of the elastic ring and the outer ring of the elastic ring are squeezed into the jack on the patient's body, and the gap between the jack and the outer tube is blocked, thereby reducing the leakage of physiological saline and effusion, and contaminating the body surface, so that the effusion is more concentratedly extracted and discharged from the inner tube for pollution-free treatment.
[0012] Preferably, a sealing ring is provided on the elastic ring, the inner ring of the sealing ring is fixedly connected to the middle position of the outer ring of the elastic ring, the edge of the sealing ring is bent toward one end of the outer tube, and the cross-section of the sealing ring is horn-shaped, and the edge is pointed; the soft tissue on the inner surface of the socket on the patient's body is uneven, and when the outer ring of the elastic ring bulges, there will still be a gap between part of the soft tissue and the outer surface of the elastic ring. For this purpose, a sealing ring is provided, which is also made of silicone material. The sealing ring is enlarged by the bulge of the elastic ring, and the edge of the sealing ring is against the inner surface of the socket, cooperating with the uneven tissue in the socket, further improving the sealing between the socket and the outer tube, and reducing the possibility of penetration of physiological saline and effusion.
[0013] Preferably, the outer surface of the sealing ring is evenly provided with pull ropes, one end of each pull rope is fixed to the outer ring surface of the sealing ring, and the fixing point is close to the edge of the sealing ring, and the other end of each pull rope slides along the outer ring of the sealing ring, slides through the elastic ring, and is fixed to the inner wall of the outer tube; the sealing ring is expanded and squeezed on the soft tissue, and at the same time, under the pulling limit of the pull rope, the edge of the sealing ring bends toward the convex direction of the elastic ring, so that the edge of the sealing ring is pressed against the soft tissue, thereby increasing the sealing between the sealing ring and the soft tissue, and further improving the sealing between the jack and the outer tube.
[0014] Preferably, a ring-shaped notch is provided on the outer ring of the sealing ring, and the notch is located below the connection point between the draw cord and the sealing ring; the setting of the notch benefits from the bending of the sealing ring, so that the sealing ring bends at the notch, and then the edge of the sealing ring tends to be vertically squeezed on the surface of the soft tissue, thereby improving the sealing performance.
[0015] Preferably, a truncated cone-shaped rubber ring is provided at the position where the pull rope and the elastic ring slide through, and the large end face of the rubber ring is fixed to the inner surface of the elastic ring. The other end of the pull rope slides through the elastic ring and the rubber ring in sequence, and is fixed to the inner wall of the outer tube. Since the pull rope slides through the elastic ring, a gap remains at the position where the pull rope passes through the elastic ring, which will cause part of the physiological saline in the cavity to flow into the insertion hole through the gap. At this time, the insertion hole is not sealed by the sealing ring, which will cause the physiological saline to flow out of this part of the insertion hole and contaminate the patient's body. For this purpose, a rubber ring is provided, and the elastic ring is convex. The convex part squeezes the rubber ring, and the center of the rubber ring is squeezed toward the pull rope, thereby improving the sealing between the pull rope and the elastic ring and reducing the possibility of physiological saline penetration.
[0016] Preferably, the hollow disk is fixed with a circular snap-fit seat coaxial with the hollow disk, and a snap point is symmetrically fixed on the circle of the snap-fit seat; the inner tube is provided with a circular cylinder coaxial with the hollow disk, and an L-shaped snap-fit is symmetrically provided on the end face of the cylinder, the snap-fit seat is embedded in the cylinder, and the snap-fit point is snap-fitted in the snap-fit; the inner tube is inserted into the outer tube, so that the snap-fit seat is embedded in the cylinder, and the snap-fit point is snap-fitted in the snap-fit, and then the cylinder is rotated so that the snap-fit point is embedded in the horizontal position of the snap-fit. At this time, the inner tube and the outer tube are fastened, which is easy to disassemble and install, and convenient for medical staff to operate.
[0017] The beneficial effects of the present invention are as follows:
[0018] 1. The hepatobiliary surgical fluid drainage device described in the present invention can dilute the viscous effusion through the cooperation of the outer tube and the inner tube, and then draw it out through the inner tube, thereby reducing the possibility of the effusion clogging the fluid drainage device. Thanks to the smooth discharge of the effusion, it helps the patient's postoperative recovery.
[0019] 2. The hepatobiliary surgical fluid drainage device described in the present invention has a hollow disk. Medical personnel can insert the outer tube into the patient's body and then transfer the hollow disk to the patient's skin through medical tape. Thanks to the fixation of the fluid drainage device, the swing amplitude of the outer tube in the body is reduced, and the patient's pain is reduced; and when the inner tube encounters a blood clot or soft tissue and is blocked in the inner tube, the inner tube can be pulled out from the outer tube at this time, and then the inner tube can be flushed and unblocked with physiological saline, and then the inner tube can be inserted into the outer tube again to drain the accumulated fluid, which is convenient to operate and solves the blockage problem in time. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The present invention will be further described below with reference to the accompanying drawings.
[0021] Figure 1 is a three-dimensional diagram of the fluid drainage device of the present invention;
[0022] Figure 2 This is a first perspective view of the inner tube and outer tube in the present invention;
[0023] Figure 3 This is a second perspective view of the inner tube and outer tube in the present invention;
[0024] Figure 4 is a first cross-sectional view of the outer tube of the present invention;
[0025] Figure 5 yes Figure 4 A partial enlarged view of the middle A;
[0026] Figure 6 This is a diagram showing the coordination of the inner tube and the retaining ring in the present invention;
[0027] Figure 7 is a second cross-sectional view of the outer tube of the present invention;
[0028] Figure 8 yes Figure 7 A partial enlarged view of point B in the middle;
[0029] Figure 9 This is a diagram showing the coordination between the clamping seat and the cylinder in the present invention;
[0030] In the figure: inner tube 1, outer tube 2, feed port 3, hollow disk 4, liquid inlet pipe 41, water inlet hole 5, drain hole 6, vent pipe 7, liquid extraction port 8, retaining ring 9, reinforcing rod 10, water baffle 11, elastic threaded strip 12, notch 13, elastic ring 14, cavity 15, sealing ring 16, pull rope 17, notch 18, rubber ring 19, snap seat 20, card point 21, cylinder 22, bayonet 23. DETAILED DESCRIPTION
[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.
[0032] Example 1:
[0033] Reference Figure 1 、 Figure 2 and Figure 3A hepatobiliary surgical fluid drainage device comprises an inner tube 1 and an outer tube 2; a feed port 3 is provided on the outer ring surface and one end face of the outer tube 2, the other end of the outer tube 2 is connected to a hollow disk 4, the hollow disk 4 is connected to an external physiological saline bag through a liquid inlet pipe 41, the middle position of the hollow disk 4 is fixed to the outer tube 2, the other end of the outer tube 2 is provided with a plurality of water inlet holes 5 along the length direction of the outer tube 2, the water inlet holes 5 are connected to the hollow disk 4, a plurality of drainage holes 6 are provided in the water inlet holes 5, and the drainage holes 6 pass through the outer surface of the outer tube 2; a ventilation tube 7 is fixed to the hollow disk 4, the ventilation tube 7 is connected to the outer tube 2, and the inner tube 1 is inserted into the outer tube 2; a liquid extraction port 8 is provided on the outer ring surface of one end of the inner tube 1, The other end of the inner tube 1 extends to the outside of the other end of the outer tube 2 and is connected to an external peristaltic pump; the fluid drainage device is a medical device used for clinical surgical drainage, which guides pus, blood, and liquid accumulated between human tissues or in body cavities to the outside of the body to prevent postoperative infection and promote wound healing; the hepatobiliary surgical fluid drainage device also draws pus or blood produced by hepatobiliary lesions out of the body, reduces the possibility of postoperative infection, and accelerates wound healing; when the fluid drainage device draws out viscous fluid, or when the fluid is accompanied by blood clots and other blocky tissues, it will block the drainage tube, resulting in the inability to drain the fluid smoothly, affecting the patient's postoperative recovery effect; first, insert one end of the outer tube 1 into the patient's body The upper socket is then filled with physiological saline from the liquid inlet pipe 41 into the hollow disk 4 through the peristaltic pump, and then the physiological saline flows along the water inlet hole 5 and is discharged from the drainage hole 6 into the socket of the patient's body. The physiological saline mixes with the effusion and dilutes the effusion. At the same time, the other end of the inner tube 1 is also connected to the peristaltic pump. The peristaltic pump forms a negative pressure in the inner tube 1 and draws the effusion in the body socket into the outer tube 2. The effusion flows along the feed port 3 on the outer tube 2 into the outer tube 2, and then flows along the liquid extraction port 8 into the inner tube 1, and finally is discharged from the body along the inner tube 1, thereby realizing the extraction of the effusion in the liver and gallbladder; the viscous effusion can be diluted and then extracted and discharged through the inner tube 1, reducing the effusion. The possibility of clogging the fluid drainage device is reduced, and the smooth discharge of the accumulated fluid helps the patient's postoperative recovery; through the hollow disk 4, medical personnel can insert the outer tube 2 into the patient's body, and then transfer the hollow disk 4 to the patient's skin through medical tape. Thanks to the fixation of the fluid drainage device, the swing amplitude of the outer tube 2 in the body is reduced, and the patient's pain is reduced; and when the inner tube 1 encounters a blood clot or soft tissue and is blocked in the inner tube 1, the inner tube 1 can be pulled out from the outer tube 2 at this time, and then the inner tube 1 can be flushed and unblocked with physiological saline, and then the inner tube 1 can be inserted into the outer tube 2 again, and the accumulated fluid can be extracted again, which is convenient for operation and solves the blockage problem in time.
[0034] Reference Figure 2 、 Figure 3 and Figure 6, the outer surface of the inner tube 1 is provided with a plurality of liquid extraction ports 8, the liquid extraction ports 8 are waist-shaped holes, and retaining rings 9 are provided on the upper and lower sides of the liquid extraction ports 8. The inner ring of the retaining ring 9 is fixed to the inner tube 1, and the outer ring of the retaining ring 9 is attached and squeezed on the inner wall of the outer tube 2; a reinforcing rod 10 is provided between the adjacent liquid extraction ports 8, and the reinforcing rod 10 is wrapped inside the side wall of the inner tube 1; the larger the diameter of the liquid extraction port 8 is, the better, which is helpful for drawing blood clots or soft tissue into the inner tube 1, and after the diameter is large, the strength of the liquid extraction port 8 is reduced, so a reinforcing rod 10 is provided for this purpose. The strong rod 10 improves the strength of the liquid extraction port 8 to prevent the blood clots or soft tissues in the outer tube 2 from squeezing and bending the inner tube 1 after the inner tube 1 is inserted into the outer tube 2, thereby affecting the extraction effect of the liquid extraction port 8; the provided retaining ring 9, when the inner tube 1 is extracted from the outer tube 2, the edge of the retaining ring 9 cleans the feed port 3 of the outer tube 2, and scrapes off the blood clots or soft tissues adhering to the feed port 3. Thanks to the extraction of the blood clots or soft tissues, the accumulated fluid in the body can flow smoothly through the feed port 3 into the outer tube 2.
[0035] Reference Figure 2 Each of the retaining rings 9 is trumpet-shaped, with the wide-mouth end of the retaining ring 9 facing one end of the outer tube 2, and the edge of the retaining ring 9 is rolled outward; the retaining ring 9 is made of elastic silicone material. During the process of inserting the inner tube 1 into the outer tube 2, the peristaltic pump injects physiological saline into the jack on the body, and then the diluted effusion flows into the outer tube 2. At this time, the inner tube 1 is inserted, and the effusion pushes down the edge of the retaining ring 9, so that the edge of the retaining ring 9 bends downward, reducing the contact between the edge of the retaining ring 9 and the inner ring of the outer tube 2, and lowering the position of the feed port 3. When the inner tube 1 is pulled out, the peristaltic pump connected to the liquid inlet pipe 41 stops working, and the peristaltic pump connected to the inner tube 1 continues to work. At this time, negative pressure is formed in the outer tube 2, and the retaining ring 9 is bent in the opposite direction toward one end of the outer tube 2, so that the rolled portion of the baffle is gradually perpendicular to the inner surface of the outer tube 2, and the blood clots or soft tissues outside the feed port 3 are scraped off and taken away from the outer tube 2, thereby improving the cleaning effect of the baffle on the outer tube 2, benefiting from the extraction of fluid accumulated in the patient's body.
[0036] Reference Figure 4 and Figure 5, the cross-section of each of the drainage holes 6 is trumpet-shaped, the wide-mouth end outside the drainage hole 6 faces the outside of the outer tube 2, and the outer end of the drainage hole 6 is provided with a water baffle 11 and an elastic threaded strip 12; the inner convex surface of the water baffle 11 is placed in the drainage hole 6, and the inner convex edge of the water baffle 11 is fixed to the outer end surface of the drainage hole 6 through a plurality of elastic threaded strips 12, and the edge of the water baffle 11 is rolled toward the drainage hole 6; during the discharge of physiological saline through the drainage hole 6, the hydraulic pressure of the physiological saline acts on the water baffle 11, and the water baffle 11 drives the elastic threaded strip 12 The stripes 12 are stretched, and a gap leaks out between the edge of the water baffle 11 and the drainage hole 6, and the physiological saline is discharged from the gap. At this time, the physiological saline is discharged along the outer ring surface of the outer tube 2, and the physiological saline does not impact vertically into the socket on the body, thereby reducing the impact and damage of the physiological saline on the healthy soft tissue in the socket and reducing the patient's pain; and the edge of the water baffle 11 is rolled toward the drainage hole 6, so that the edge of the water baffle 11 and the surface of the outer tube 2 tend to be flat, reducing the scraping of the water baffle 11 on the soft tissue in the socket and reducing the patient's pain.
[0037] Reference Figure 7 The outer tube 2 is provided with a ring-shaped notch 13, which is close to the other end of the outer tube 2. A ring-shaped elastic ring 14 is provided in the notch 13. Both ends of the elastic ring 14 are fixed to the notch 13. A cavity 15 is formed between the elastic ring 14 and the inner wall of the outer tube 2, and the water inlet 5 is connected to the cavity 15. The middle position of the elastic ring 14 is convex outward, and the wall thickness of the middle part of the elastic ring 14 is smaller than the wall thickness of the two ends of the elastic ring 14; after the physiological saline is injected into the water inlet 5, the hydraulic pressure of the physiological saline pushes up the elastic ring 14, so that the convexity of the elastic ring 14 and the outer ring of the elastic ring 14 are squeezed into the insertion hole on the patient's body, thereby blocking the gap between the insertion hole and the outer tube 2, reducing the leakage of physiological saline and effusion, and contaminating the body surface, so that the effusion is more concentratedly drawn out from the inner tube 1 for pollution-free treatment.
[0038] Reference Figure 7 and Figure 8 The elastic ring 14 is provided with a sealing ring 16, the inner ring of the sealing ring 16 is fixedly connected to the middle position of the outer ring of the elastic ring 14, the edge of the sealing ring 16 is bent toward one end of the outer tube 2, and the cross-section of the sealing ring 16 is horn-shaped, and the edge is pointed; the soft tissue on the inner surface of the insertion hole on the patient's body is uneven, and when the outer ring of the elastic ring 14 bulges, there will still be a gap between part of the soft tissue and the outer surface of the elastic ring 14. For this reason, a sealing ring 16 is provided, which is also made of silicone material. The sealing ring 16 is enlarged by the bulge of the elastic ring 14, and the edge of the sealing ring 16 is against the inner surface of the insertion hole, cooperating with the uneven tissue in the insertion hole, further improving the sealing between the insertion hole and the outer tube 2, and reducing the possibility of penetration of physiological saline and effusion.
[0039] Reference Figure 8 The outer surface of the sealing ring 16 is evenly provided with pull ropes 17, and one end of each pull rope 17 is fixed to the outer ring surface of the sealing ring 16, and the fixed point is close to the edge of the sealing ring 16. The other end of each pull rope 17 slides along the outer ring of the sealing ring 16, slides through the elastic ring 14, and is fixed to the inner wall of the outer tube 2; the sealing ring 16 is expanded and squeezed on the soft tissue. At the same time, under the pulling restriction of the pull rope 17, the edge of the sealing ring 16 bends toward the convex direction of the elastic ring 14, so that the edge of the sealing ring 16 is pressed against the soft tissue, thereby increasing the sealing between the sealing ring 16 and the soft tissue, and further improving the sealing between the jack and the outer tube 2.
[0040] Reference Figure 8 The outer ring of the sealing ring 16 is provided with a ring-shaped notch 18, and the notch 18 is located below the fixed point between the drawstring 17 and the sealing ring 16; the setting of the notch 18 is due to the bending of the sealing ring 16, so that the sealing ring 16 bends at the notch 18, and then the edge of the sealing ring 16 tends to be vertically squeezed on the surface of the soft tissue, thereby improving the sealing performance.
[0041] Reference Figure 8 The position where the pull rope 17 and the elastic ring 14 slide through is provided with a truncated cone-shaped rubber ring 19. The large end surface of the rubber ring 19 is fixed to the inner surface of the elastic ring 14. The other end of the pull rope 17 slides through the elastic ring 14 and the rubber ring 19 in sequence and is fixed to the fixed rod. Since the pull rope 17 slides through the elastic ring 14, a gap remains at the position where the pull rope 17 passes through the elastic ring 14, which will cause part of the physiological saline in the cavity 15 to flow into the insertion hole from the gap. At this time, the insertion hole is not sealed by the sealing ring 16, which will cause the physiological saline to flow out of this part of the insertion hole and contaminate the patient's body. For this reason, the rubber ring 19 is provided. The elastic ring 14 is convex, and the convex part squeezes the rubber ring 19. The center of the rubber ring 19 is squeezed toward the pull rope 17, thereby improving the sealing between the pull rope 17 and the elastic ring 14 and reducing the possibility of physiological saline penetration.
[0042] Example 2:
[0043] Reference Figure 9, compared with Example 1, as another embodiment of the present invention, the hollow disk 4 is fixedly connected to a circular clamping seat 20 coaxial with the hollow disk 4, and a clamping point 21 is symmetrically fixed on the circle of the clamping seat 20; the inner tube 1 is provided with a circular cylindrical body 22 coaxial with the inner tube 1, and an L-shaped bayonet 23 is symmetrically opened on the end face of the cylindrical body 22. The clamping seat 20 is embedded in the cylindrical body 22, and the clamping point 21 is clamped in the bayonet 23; the inner tube 1 is inserted into the outer tube 2, so that the clamping seat 20 is embedded in the cylindrical body 22, and the clamping point 21 is clamped in the bayonet 23, and then the cylindrical body 22 is rotated so that the clamping point 21 is embedded in the horizontal position of the bayonet 23. At this time, the inner tube 1 and the outer tube 2 are fastened, easy to disassemble and install, and convenient for medical staff to operate.
[0044] Working principle: The effusion drainer is a medical device used for clinical surgical drainage, which guides pus, blood and liquid accumulated between human tissues or in body cavities to the outside of the body to prevent postoperative infection and promote wound healing; the hepatobiliary surgical effusion drainer can also draw pus or blood produced by hepatobiliary lesions out of the body, reduce the possibility of postoperative infection and accelerate wound healing; when the effusion drainer draws out viscous effusion, or when the effusion is accompanied by blood clots and other blocky tissues, it will block the drainage tube, resulting in the inability to drain the effusion smoothly, affecting the patient's postoperative recovery effect; physiological saline is injected into the hollow disk 4 from the liquid inlet pipe 41 through the peristaltic pump, and then the physiological saline flows along the water inlet hole 5 and is discharged from the drainage hole 6 into the socket of the patient's body, the physiological saline mixes with the effusion and dilutes the effusion, and at the same time the other end of the inner tube 1 is also connected to the peristaltic pump, which creates a negative pressure in the inner tube 1 and draws the effusion in the body socket into the outer tube 2, and the accumulation The liquid flows along the feed port 3 on the outer tube 2 into the outer tube 2, then flows along the liquid extraction port 8 into the inner tube 1, and finally is discharged from the body along the inner tube 1, thereby realizing the extraction of the hepatobiliary effusion; the viscous effusion can be diluted and then extracted and discharged through the inner tube 1, reducing the possibility of the effusion blocking the effusion drainage device, thanks to the smooth drainage of the effusion, which is helpful for the patient's postoperative recovery; through the hollow disk 4, after the medical staff can insert the outer tube 2 into the patient's body, the hollow disk 4 can be transferred to the patient's skin through medical tape, thanks to the fixation of the effusion drainage device, the swing amplitude of the outer tube 2 in the body is reduced, and the patient's pain is reduced; and when the inner tube 1 encounters a blood clot or soft tissue and is blocked in the inner tube 1, the inner tube 1 can be extracted from the outer tube 2 at this time, and the inner tube 1 can be flushed and unblocked with physiological saline, and then the inner tube 1 can be inserted into the outer tube 2 again, and the effusion can be extracted again, which is convenient for operation and solves the blockage problem in time.
[0045] The larger the diameter of the liquid extraction port 8 is, the better, as it helps to draw blood clots or soft tissues into the inner tube 1. However, when the diameter is large, the strength of the liquid extraction port 8 is reduced. For this reason, a reinforcing rod 10 is provided to improve the strength of the liquid extraction port 8 to prevent the blood clots or soft tissues in the outer tube 2 from squeezing and bending the inner tube 1 after the inner tube 1 is inserted into the outer tube 2, thereby affecting the extraction effect of the liquid extraction port 8. A retaining ring 9 is provided. During the process of drawing the inner tube 1 out of the outer tube 2, the edge of the retaining ring 9 cleans the feed port 3 of the outer tube 2, scraping off the blood clots or soft tissues adhering to the feed port 3. Thanks to the extraction of blood clots or soft tissues, it helps the accumulated fluid in the body to flow smoothly through the feed port 3 into the outer tube 2.
[0046] The retaining ring 9 is made of elastic silicone material. During the process of inserting the inner tube 1 into the outer tube 2, the peristaltic pump injects physiological saline into the jack on the body, and then the diluted accumulated fluid flows into the outer tube 2. At this time, the inner tube 1 is inserted, and the accumulated fluid pushes down the edge of the retaining ring 9, causing the edge of the retaining ring 9 to bend downward, reducing the contact between the edge of the retaining ring 9 and the inner ring of the outer tube 2, and reducing the possibility of blood clots or soft tissue at the feed port 3 flowing into the jack again; when the inner tube 1 is pulled out, the peristaltic pump connected to the liquid inlet pipe 41 stops working, and the peristaltic pump connected to the inner tube 1 continues to work. At this time, negative pressure is formed in the outer tube 2, and the retaining ring 9 bends in the opposite direction toward one end of the outer tube 2, so that the rolled portion of the baffle gradually becomes perpendicular to the inner surface of the outer tube 2, and scrapes off the blood clots or soft tissue outside the feed port 3 and takes them away from the outer tube 2, thereby improving the cleaning effect of the baffle on the outer tube 2, benefiting from the extraction of fluid from the patient's body;
[0047] During the process of flushing the drainage hole 6 with saline, the hydraulic pressure of the saline acts on the water baffle 11, which drives the elastic threaded strip 12 to stretch, and a gap is formed between the edge of the water baffle 11 and the drainage hole 6, through which the saline is discharged. At this time, the saline is discharged along the outer surface of the outer tube 2, rather than impacting the body's insertion hole vertically, thereby reducing the impact and damage of the saline on the healthy soft tissue in the insertion hole and alleviating the patient's pain. In addition, the edge of the water baffle 11 is rolled toward the drainage hole 6, so that the edge of the water baffle 11 and the surface of the outer tube 2 tend to be flat, thereby reducing the scraping of the water baffle 11 on the soft tissue in the insertion hole and alleviating the patient's pain.
[0048] After the physiological saline is injected into the water inlet 5, the hydraulic pressure of the physiological saline pushes up the elastic ring 14, causing the bulge of the elastic ring 14 and the outer ring of the elastic ring 14 to be squeezed into the insertion hole on the patient's body, thereby blocking the gap between the insertion hole and the outer tube 2, reducing the leakage of physiological saline and accumulated fluid, and contaminating the body surface, so that the accumulated fluid is more concentratedly drawn out from the inner tube 1 for non-polluting treatment;
[0049] The soft tissue on the inner surface of the insertion hole on the patient's body is uneven. When the outer ring of the elastic ring 14 bulges, there will still be a gap between some soft tissue and the outer surface of the elastic ring 14. For this purpose, a sealing ring 16 is provided. The sealing ring 16 is also made of silicone material. The sealing ring 16 is expanded by the bulge of the elastic ring 14. The edge of the sealing ring 16 presses against the inner surface of the insertion hole and cooperates with the uneven tissue in the insertion hole, further improving the sealing between the insertion hole and the outer tube 2 and reducing the possibility of penetration of physiological saline and effusion. The sealing ring 16 is expanded and squeezed on the soft tissue. At the same time, under the pulling limit of the pull rope 17, the edge of the sealing ring 16 bends toward the bulge direction of the elastic ring 14, so that the edge of the sealing ring 16 presses against the soft tissue, thereby increasing the sealing between the sealing ring 16 and the soft tissue, and further improving the sealing between the insertion hole and the outer tube 2.
[0050] The setting of the notch 18 benefits from the bending of the sealing ring 16, which makes the sealing ring 16 bend at the notch 18. Then, the edge of the sealing ring 16 tends to be vertical and squeezes on the surface of the soft tissue, thereby improving the sealing performance. Since the pull rope 17 slides through the elastic ring 14, a gap remains at the part where the pull rope 17 passes through the elastic ring 14, which will cause part of the physiological saline in the cavity 15 to flow into the insertion hole through the gap. At this time, the insertion hole is not sealed by the sealing ring 16, which will cause the physiological saline to flow out of this part of the insertion hole and contaminate the patient's body. For this reason, a rubber ring 19 is provided. The elastic ring 14 is convex, and the convex part squeezes the rubber ring 19. The center of the rubber ring 19 is squeezed toward the pull rope 17, thereby improving the sealing performance between the pull rope 17 and the elastic ring 14 and reducing the possibility of physiological saline penetration.
[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are 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 understood as limiting the scope of protection of the present invention.
[0052] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. A hepatobiliary surgical effusion drainage device, characterized by: The invention comprises an inner tube (1) and an outer tube (2); a feed port (3) is provided on the outer ring surface and one end face of the outer tube (2); the other end of the outer tube (2) is connected to a hollow disk (4); the hollow disk (4) is connected to an external physiological saline bag through a liquid inlet pipe (41); the middle position of the hollow disk (4) is fixed to the outer tube (2); the other end of the outer tube (2) is provided with a plurality of water inlet holes (5) along the length direction of the outer tube (2); the water inlet holes (5) are connected to the hollow disk (4); the inner side wall of the water inlet hole (5) is provided with a plurality of drainage holes (6); the drainage holes (6) pass through the outer surface of the outer tube (2); a vent pipe (7) is fixed to the hollow disk (4); the vent pipe (7) is connected to the inner side of the outer tube (2); the inner tube (1) is inserted into the outer tube (2); a liquid extraction port (8) is provided on the outer ring surface of one end of the inner tube (1); the other end of the inner tube (1) extends to the outside of the other end of the outer tube (2) and is connected to an external peristaltic pump; The outer ring surface of the inner tube (1) is provided with a plurality of liquid extraction ports (8), the liquid extraction ports (8) are waist-shaped holes, and retaining rings (9) are provided on the upper and lower sides of the liquid extraction ports (8), the inner ring of the retaining ring (9) is fixed to the inner tube (1), and the outer ring of the retaining ring (9) is attached and extruded on the inner side wall of the outer tube (2); a reinforcing rod (10) is provided between adjacent liquid extraction ports (8), and the reinforcing rod (10) is wrapped inside the side wall of the inner tube (1); Each retaining ring (9) is trumpet-shaped, with the wide-mouth end of the retaining ring (9) facing one end of the outer tube (2), and the edge of the retaining ring (9) being rolled outward; The cross-section of each drainage hole (6) is trumpet-shaped, the wide-mouth end of the drainage hole (6) faces the outside of the outer tube (2), and the outer end of the drainage hole (6) is provided with a water baffle (11) and an elastic threaded strip (12); the inner convex surface of the water baffle (11) is placed in the drainage hole (6), the edge of the inner convex surface of the water baffle (11) is fixed to the outer end surface of the drainage hole (6) through a plurality of elastic threaded strips (12), and the edge of the water baffle (11) is rolled toward the drainage hole (6).
2. The hepatobiliary surgical effusion drainage device according to claim 1, characterized in that: The outer tube (2) is provided with a ring-shaped notch (13), the notch (13) being close to the other end of the outer tube (2), and a ring-shaped elastic ring (14) being provided in the notch (13), the two ends of the elastic ring (14) being fixed to the notch (13), a cavity (15) being formed between the elastic ring (14) and the inner wall of the outer tube (2), and the water inlet hole (5) being connected to the cavity (15), the middle position of the elastic ring (14) being provided with a protruding outward, and the wall thickness of the middle portion of the elastic ring (14) being smaller than the wall thickness of the two ends of the elastic ring (14).
3. The hepatobiliary surgical effusion drainage device according to claim 2, characterized in that: A sealing ring (16) is provided on the elastic ring (14), the inner ring of the sealing ring (16) is fixedly connected to the middle position of the outer ring of the elastic ring (14), the edge of the sealing ring (16) is bent toward one end of the outer tube (2), and the cross-section of the sealing ring (16) is horn-shaped, and the edge is pointed.
4. The hepatobiliary surgical effusion drain according to claim 3, characterized in that: Drawstrings (17) are evenly arranged on the outer surface of the sealing ring (16), one end of each drawstring (17) is fixed to the outer surface of the sealing ring (16), and the fixed point is close to the edge of the sealing ring (16). The other end of each drawstring (17) slides along the outer surface of the sealing ring (16), slides through the elastic ring (14), and is fixed to the inner wall of the outer tube (2).
5. The hepatobiliary surgical effusion drainage device according to claim 4, characterized in that: The outer ring of the sealing ring (16) is provided with a ring-shaped notch (18), and the notch (18) is located below the connection point between the drawstring (17) and the sealing ring (16).
6. The hepatobiliary surgical effusion drainage device according to claim 5, characterized in that: A truncated cone-shaped rubber ring (19) is provided at the position where the pull rope (17) and the elastic ring (14) slide through each other. The large end surface of the rubber ring (19) is fixedly connected to the inner surface of the elastic ring (14). The other end of the pull rope (17) slides through the elastic ring (14) and the rubber ring (19) in sequence and is fixedly connected to the inner wall of the outer tube (2).
7. The hepatobiliary surgical effusion drainage device according to claim 1, characterized in that: A circular clamping seat (20) coaxial with the hollow disk (4) is fixedly connected thereto, and a clamping point (21) is symmetrically fixedly connected to the ring of the clamping seat (20); a cylindrical body (22) coaxial with the inner tube (1) is provided, and an L-shaped clamping opening (23) is axially symmetrically provided on the end face of the cylindrical body (22); the clamping seat (20) is embedded in the cylindrical body (22), and the clamping point (21) is clamped in the clamping opening (23).
Citation Information
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