Liquid bag consumable and extraction device applied to knee joint hydrops in orthopedics department

Abstract

The utility model discloses a sac consumable and an extraction device applied to knee joint effusion in the orthopedics department, the sac consumable comprises a transparent and elastic sac body, the top of the sac body is provided with a needle connecting port, and the bottom of the sac body is provided with a sac port. Comprising the liquid bag consumable and a puncture needle assembly, the needling instrument connector is connected with the puncture needle assembly, the puncture needle assembly comprises a holding part, the holding part covers the outer side of the needling instrument connector, and a plurality of three-edged needles are arranged on the bottom face of the holding part and located in the bag body. The utility model is used for solving the problems of low treatment efficiency, high psychological pressure of patients and potential medical risks caused by multiple parts, tedious treatment process, many repeated operations, poor patient experience and medical resource limitation in knee joint effusion treatment.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, and relates to a liquid bag consumable applied to knee joint effusion in orthopedics, and also relates to a drawing device using the liquid bag consumable. BACKGROUND

[0002] Knee joint effusion is often caused by infection, trauma, inflammation, rheumatic immune diseases or strain and degeneration leading to traumatic arthritis, degenerative osteoarthritis, rheumatoid arthritis, suppurative arthritis or gouty arthritis. Knee joint puncture and liquid extraction is one of the common and effective diagnosis and treatment techniques for treating knee joint effusion, and is mainly used for checking the nature of joint cavity effusion, assisting in etiological diagnosis and performing therapeutic liquid extraction or drug injection. In actual operation, it is inevitable to face three main factors affecting treatment, i.e. effusion volume, effusion distribution and individualized conditions of patients: if the effusion volume is small, one-time puncture and liquid extraction can solve the problem. However, if the effusion volume is large, one-time extraction may not be able to completely remove it, and multiple times of extraction may be needed. The distribution of effusion in the knee joint cavity may not be uniform, and some areas have more effusion while some areas have less effusion. In this case, the doctor may need to decide whether multiple needle insertions are needed for extraction according to the distribution of effusion. The age, physical condition, pain tolerance and other factors of the patient also affect the number and method of liquid extraction. For example, for patients with low pain tolerance, the doctor may adopt the method of multiple times of extraction to reduce the pain of the patient.

[0003] These three factors will make the treatment of knee joint effusion a complex and challenging problem: when knee joint effusion involves multiple sites, the doctor needs to repeatedly extract effusion from a single site multiple times, which leads to a cumbersome treatment process. Each extraction needs to be prepared, positioned, disinfected, extracted and processed, making the overall treatment process long. This repetitive operation not only consumes the time and energy of the doctor, but also reduces the treatment efficiency. The patient needs to receive treatment multiple times, and each treatment may bring pain or discomfort, making the overall treatment process long and painful. With the extension of the treatment time, the patient may feel anxious, uneasy and frustrated, and the psychological pressure increases. This psychological pressure may have a negative impact on the treatment effect and rehabilitation process of the patient. After the extraction of effusion, the affected area needs to be pressed or a hemostatic patch needs to be used to prevent bleeding and infection. However, in the case of a shortage of medical staff, it may not be possible for multiple medical staff to press the wound and continue to extract effusion at the same time. This may lead to insufficient hemostasis time, increase the risk of infection, or cause excessive waste of consumables due to the urgency to complete the treatment. SUMMARY

[0004] The utility model discloses a kind of liquid capsule consumables and extraction device applied to knee joint effusion of orthopedics, solve the problems of low treatment efficiency, patient psychological stress and potential medical risk caused by the treatment of knee joint effusion in prior art involving multiple sites, complicated treatment process, repeated operation, poor patient experience and medical resource limitation.

[0005] The first technical solution of the utility model is a kind of liquid capsule consumables applied to knee joint effusion of orthopedics, including transparent and elastic capsule body, needle connection port is set in the top of capsule body, and liquid capsule port is set in the bottom of capsule body.

[0006] Another technical solution of the utility model is a kind of extraction device applied to knee joint effusion of orthopedics, including the above-mentioned liquid capsule consumables and puncture needle assembly, needle connection port is connected with puncture needle assembly, and puncture needle assembly includes holding part, holding part covers outside needle connection port, and the bottom surface of holding part is provided with a plurality of trihedral needles, and a plurality of trihedral needles are located inside capsule body.

[0007] The utility model has the characteristics that:

[0008] Further, the liquid capsule port and the needle connection port are both circular openings, and the inner diameter of the liquid capsule port is smaller than the inner diameter of the needle connection port.

[0009] Further, the liquid capsule port is connected with a transparent and elastic liquid extraction part, the liquid extraction part has a funnel-shaped structure, a liquid outlet is formed in the top of the liquid extraction part and connected with the liquid capsule port, and the inner diameter of the liquid extraction part is smaller than the inner diameter of the needle connection port.

[0010] Further, the shape of the capsule body is ellipsoidal.

[0011] Further, the holding part includes a sealing surface, the sealing surface covers outside the needle connection port and is sealed therebetween, the trihedral needles are arranged on the bottom surface of the sealing surface, and a handle is arranged on the top surface of the sealing surface.

[0012] Further, the handle is flat and round and has a gourd shape, and the surface of the handle is frosted.

[0013] Further, the bottom surface of the sealing surface is detachably connected with a needle port made of elastic material, the needle port has a ring-shaped structure, a clamping groove is formed in the ring of the needle port, and the handheld end of the trihedral needle is inserted into and fixed in the clamping groove.

[0014] Further, the number and arrangement of the needle ports are suitable for the disease.

[0015] Further, the size of the needle port is suitable for the size of the trihedral needle used for treating the disease.

[0016] The utility model has the advantages that:

[0017] 1. The liquid extraction part of the utility model can accurately position the effusion part, multiple liquid extraction parts are positioned at multiple effusion parts at the same time, through the one-time placement of multiple triangular needles and the use of the liquid bag negative pressure system, the rapid and synchronous extraction of effusion is realized, and the treatment time is greatly shortened.

[0018] 2. The needle port of the utility model is designed flexibly, can be adapted to triangular needles of different specifications, meets the puncture requirements of different knee joint parts and depths. At the same time, the liquid bag with good elasticity can cope with the treatment of a small amount to large capacity effusion, and ensure the wide applicability and personalized needs of treatment.

[0019] 3. Compared with the traditional method, the utility model simplifies the effusion extraction steps, and the effusion can be completely extracted by simply lifting the handle, without repeated squeezing of the puncture port. In addition, the postoperative treatment is also more convenient, only one-time sterile gauze is needed to cover multiple puncture points for compression hemostasis, reducing the complexity and time cost of nursing work. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0021] Figure 1 It is the structure diagram of the liquid bag consumables of the utility model;

[0022] Figure 2 It is the isometric view of the liquid extraction device of the utility model in the unfolded or finished state of liquid extraction;

[0023] Figure 3 It is the isometric view of the liquid extraction device of the utility model in the unfolded or finished state of liquid extraction;

[0024] Figure 4 It is the front view of the liquid extraction device of the utility model in the unfolded or finished state of liquid extraction;

[0025] Figure 5 It is the front view of the liquid extraction device of the utility model in the unfolded or finished state of liquid extraction;

[0026] Figure 6 It is the front view of the liquid extraction device of the utility model in the unfolded or finished state of liquid extraction;

[0027] Figure 7 It is the front view of the liquid extraction device of the utility model in the unfolded or finished state of liquid extraction;

[0028] Figure 8is the section view of the liquid extracting device in the liquid extracting or the liquid extracting preparation state of the utility model;

[0029] Figure 9 is the front view of the liquid extracting device in the liquid extracting or the liquid extracting preparation state of the utility model;

[0030] Figure 10 is the top view of the liquid extracting device in the liquid extracting or the liquid extracting preparation state of the utility model;

[0031] Figure 11 is the section view of the liquid extracting device in the liquid extracting preparation state of the utility model;

[0032] Figure 12 is the front view of the liquid extracting device in the liquid extracting preparation state of the utility model;

[0033] Figure 13 is the top view of the liquid extracting device in the liquid extracting preparation state of the utility model;

[0034] Figure 14 is the front view of the handle of the liquid extracting device of the utility model;

[0035] Figure 15 is the top view of the handle of the liquid extracting device of the utility model;

[0036] Figure 16 is the bottom view of the handle of the liquid extracting device of the utility model;

[0037] Figure 17 is the bottom view of the needle port layout of the utility model for knee tuberculosis, suppurative arthritis;

[0038] Figure 18 is the bottom view of the needle port layout of the utility model for meniscus injury, cross ligament injury or synovial membrane injury;

[0039] Figure 19 is the bottom view of the needle port layout of the utility model for knee synovitis, gouty arthritis;

[0040] Figure 20 is the bottom view of the needle port layout of the utility model for rheumatoid arthritis, rheumatoid arthritis;

[0041] Figure 21 is the bottom view of the needle port layout of the utility model for patellar chondromalacia, knee degenerative arthritis;

[0042] In the drawing, 1, capsule, 2, needle connection port, 3, liquid capsule port, 4, liquid extraction part, 5, holding part, 6, three-edge needle, 5-1, sealing surface, 5-2, handle, 6, three-edge needle, 7, needle port. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0044] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model. Figure 1 The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model. Figure 21 The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0045] Embodiment 1

[0046] A kind of liquid capsule consumables for being applied to orthopedics knee joint effusion, structure as Figure 1 As shown in the figure, including transparent and elastic bag body 1, needle connection port 2 is set in the top of bag body 1, liquid capsule mouth 3 is set in the bottom of bag body 1. The bag body 1 of this embodiment is made of silica gel or silicon oxide glue material, the bag body 1 is light and thin, flexible, has high elasticity, good sealing performance, and has good transparency.

[0047] The bag body 1 has elasticity, so that it is extruded to generate negative pressure, and the extraction and guarantee lifting liquid extraction are smooth, the bag body 1 has certain transparency, for observing the extraction condition and effusion property.

[0048] As Figures 11-13 As shown in the figure, further, liquid capsule mouth 3 and needle connection port 2 are circular openings, and the inner diameter of liquid capsule mouth 3 is smaller than that of needle connection port 2. Under the action of elastic force, when the bag body 1 is pressed downward, the liquid capsule mouth 3 will be opened, and after the handle 5-2 is pulled up, the liquid capsule mouth 3 will be narrowed.

[0049] Further, the liquid capsule mouth 3 is connected with the transparent and elastic liquid extraction part 4, the liquid extraction part 4 is a funnel structure, the top of the liquid extraction part 4 is connected with the liquid capsule mouth 3, the inner diameter of the liquid extraction part 4 is smaller than that of the needle connection port 2, and the liquid extraction part 4 is positioned at the puncture site, and the funnel structure makes the liquid extraction part 4 tightly cover the skin of the patient to form a vacuum environment.

[0050] Further, the shape of the bag body 1 is ellipsoidal, the middle abdominal part is wide, and the two ends are narrower than the abdominal part. The ellipsoidal shape provides large capacity, ensures the extraction efficiency and extraction integrity.

[0051] A kind of extraction device for being applied to orthopedics knee joint effusion, structure as Figures 2-7 As shown in the figure, including the liquid capsule consumables, the needle connection port 2 is connected with the puncture needle assembly by concave-convex buckling mode, to ensure the sterile state in the operation process, reduce the risk of infection, and ensure that there is no effusion leakage in the extraction process.

[0052] As shown in 2-10, the puncture needle assembly includes a holding part 5 covering the outside of the needle connection port 2, and the bottom surface of the holding part 5 is provided with a plurality of triangular needles 6 located inside the capsule 1. The triangular needles 6 are made of stainless steel, which is cylindrical in shape and has a triangular pyramid-shaped needle. The stainless steel material is sharp, smooth, corrosion-resistant, and has good strength and toughness. It is used for puncture and reduces resistance and pain during puncture.

[0053] As shown in Figures 14-16 Further, the holding part 5 includes a sealing surface 5-1 covering the outside of the needle connection port 2 and sealed therebetween. Specifically, a circular sealing groove is formed in the outer wall of the capsule 1 along the outside of the needle connection port 2, and the bottom of the sealing surface 5-1 is provided with a sealing ring made of rubber material matching in size and shape. The sealing ring is inserted into the circular sealing groove to seal the needle connection port 2 and the sealing surface 5-1. The triangular needles 6 are arranged on the bottom surface of the sealing surface 5-1, and the top surface of the sealing surface 5-1 is provided with a handle 5-2.

[0054] Further, the handle 5-2 is flat and round and has the advantages of light weight, pressure resistance, and toughness. The surface of the handle 5-2 is a frosted surface. The handle 5-2 is made of polycarbonate or acrylonitrile-butadiene-styrene copolymer material, and the surface is treated with anti-slip frosted surface to ensure comfortable holding, reduce operator hand fatigue, and avoid slipping. It is not easy to deform or break, is used for puncture of the triangular needles 6, and is used for cooperation with the liquid capsule to extract the effusion in the puncture port.

[0055] Further, the bottom surface of the sealing surface 5-1 is provided with a needle port 7 made of elastic material by hot melting. The needle port 7 has a ring structure, and the clamping groove of the needle port 7 tightly fits around the hand-held end of the triangular needle 6 to fix the triangular needle 6.

[0056] The needle port 7 is made of thermoplastic elastomer, polyisoprene, polyamide, or styrene-butadiene rubber material, which is flexible and elastic, and is used to tightly fit around the hand-held end of the triangular needle to fix the triangular needle.

[0057] Further, the number and arrangement of the needle ports 7 are adapted to the disease, and the size of the needle ports 7 is adapted to the size of the triangular needles 6 used for treating the disease. The specific conditions are as follows:

[0058] As shown in Figure 17 For knee tuberculosis and pyogenic arthritis: this type of infectious effusion is often accompanied by pus or viscous material. Due to bacterial infection, a large amount of inflammatory exudate will be produced in the joint, which will usually be widely distributed in the entire joint cavity. While ensuring sufficient fluid extraction and reducing damage to the joint, it can quickly control infection and reduce joint pressure.

[0059] Select the outer diameter of 1.54mm three-pronged needle 6, puncture and draw liquid to ensure the effect of drawing liquid and reduce the number of operations. The capacity of the liquid capsule can accommodate more inflammatory exudate. The needle port 7 selects the appropriate size of the thick needle, and the arrangement sequence is adjusted according to the disease.

[0060] As shown in Figure 18 , for meniscus injury, cruciate ligament injury or synovial membrane injury: this type of traumatic effusion is often accompanied by blood components and large amount, with moderate viscosity. The effusion is concentrated in the injury site: meniscus injury causes effusion to accumulate in the medial or lateral compartment of the knee joint; cruciate ligament injury causes effusion to accumulate in the anterior or posterior joint cavity. Avoid further damage to the damaged structure through more delicate operation.

[0061] Select a thinner needle, outer diameter 0.6mm three-pronged needle 6, to achieve precise puncture and reduce damage to surrounding tissues. The needle port selects the appropriate size of the thin needle, and the arrangement sequence is adjusted according to the disease.

[0062] As shown in Figure 19 , for knee synovitis, gouty arthritis: the generation rate of this type of inflammatory effusion is greater than the absorption rate, and the synovial tissue secretes a large amount of synovial fluid, causing knee joint waterlogging, which is usually thin and has moderate viscosity, and is usually distributed in the entire joint cavity.

[0063] Select an outer diameter of 0.7mm three-pronged needle 6 for operation. It not only meets the needs of drawing liquid, but also avoids unnecessary trauma to the patient. The needle port selects the appropriate size of the thin needle, and the arrangement sequence is adjusted according to the disease.

[0064] As shown in Figure 20 , for rheumatoid arthritis, rheumatoid arthritis: this type of rheumatic and immunological disease effusion is slow to produce, with relatively small amount and low viscosity. It usually involves multiple joints, and effusion not only occurs in the knee joint, but also is found in other affected joints. In the knee joint, effusion is often widely distributed in the entire joint cavity. Select an outer diameter of 0.6mm three-pronged needle 6 to draw effusion to relieve symptoms. The needle port 7 selects the appropriate size of the thin needle, and the arrangement sequence is adjusted according to the disease.

[0065] As shown in Figure 21 , for chondromalacia patellae, knee osteoarthritis: this type of strain and degenerative effusion has more synovial fluid secreted by synovial tissue hyperplasia and low viscosity. It is usually distributed in the entire joint cavity, and accumulates in the weight-bearing area or the most severely worn part due to local aggravation of joint degeneration.

[0066] Select an outer diameter of 0.84mm three-pronged needle 6 for operation. The patient's comfort and the avoidance of further damage to the joint tissue, the needle port 7 selects the appropriate size of the thin needle, and the arrangement sequence is adjusted according to the disease.

[0067] The working process of the knee joint effusion extraction device is as follows:

[0068] 1. Preoperative preparation

[0069] (1) Prepare the knee joint effusion extraction device and liquid capsule consumables, and arrange the needle port 7 in advance according to the specific disease condition of the patient, and position the three-edged needle 6 of the corresponding size in the needle port 7 according to the position of the puncture point.

[0070] (2) Let the patient take a supine position on the operating table, straighten the two lower limbs, and slightly bend the knee joint by about 30° to make the knee joint in a relaxed state for easy operation.

[0071] 2. Disinfection stage

[0072] (1) Use a sterile cotton swab to dip an appropriate amount of disinfectant and wipe the puncture point and the whole joint.

[0073] 3. Puncture operation

[0074] (1) According to the preoperative judgment, confirm the puncture point again.

[0075] (2) Open the funnel-shaped liquid extraction part 4, press the handle 5-2 to make the three-edged needle 6 close to the edge of the liquid capsule but not protrude, wrap the entire puncture point range with the bottom liquid inlet edge of the liquid extraction part 4, and press the liquid inlet edge to completely fit the skin without gaps.

[0076] (3) Fix the skin near the puncture site with the left hand, and hold the knee joint effusion extraction device with the right hand to insert the needle at an angle of 90°. The hand should be kept stable during the insertion process to avoid shaking.

[0077] (4) When the needle is inserted into the affected area, there is a clear empty feeling, which indicates that the liquid area has been entered. At this time, the handle 5-2 can be slowly pulled back at an angle of 90°, and the semi-transparent liquid capsule shows that the liquid capsule is filled with liquid, which proves that the affected area has been punctured to extract the effusion. Continuously pulling the handle 5-2 will generate a continuous negative pressure on the affected area, and the effusion will continuously fill the liquid capsule through the puncture port. When it is observed that the liquid capsule capacity does not change, it indicates that the extraction is complete.

[0078] (5) The funnel-shaped liquid extraction part will be closed and recovered into a funnel-shaped seal shape at the outlet during the lifting process.

[0079] 5. Post-extraction processing

[0080] (1) After the extraction is completed, completely uncover the edge of the liquid extraction part 4.

[0081] (2) According to the size of the puncture port distribution, cover the joint with a sterile gauze that can cover all puncture points at the same time, press the puncture point for a moment to prevent bleeding. After the liquid is extracted, cover the puncture site with sterile gauze and press and fix for 3-5 minutes to prevent bleeding.

[0082] 6 Treatment of supplies

[0083] (1) The used consumable liquid capsule and the triangular needle are treated according to medical waste, and the holding part 5 can be recycled.

[0084] The utility model discloses a liquid capsule consumable and extraction device for knee joint effusion in orthopedics, which has the following advantages: the utility model can accurately position and simultaneously puncture and extract liquid at multiple effusion sites, significantly improving the treatment efficiency; the needle port is designed flexibly, which is suitable for different specifications of triangular needles and meets diversified treatment needs; the transparent and high-elasticity capsule body facilitates observation of the liquid extraction condition, ensuring the accuracy of treatment and the safety of patients; the integrated design simplifies the effusion extraction steps and reduces the work burden of medical staff; postoperative treatment is convenient, reducing the pain and recovery time of patients.

[0085] The above further describes the utility model with specific embodiments, but it should be understood that the specific description here should not be understood as limiting the essence and scope of the utility model, and various modifications of the above embodiments made by ordinary skilled persons in the art after reading the specification all belong to the scope protected by the utility model.

Claims

1. A fluid-filled bladder consumable for use in orthopedic knee joint effusion, characterized in that, It includes a transparent and elastic capsule (1), with a needle connection port (2) at the top and a liquid sac port (3) at the bottom.

2. The fluid-filled bladder consumable for knee joint effusion in orthopedics according to claim 1, characterized in that, Both the liquid bladder opening (3) and the needle connection opening (2) are circular openings, and the inner diameter of the liquid bladder opening (3) is smaller than the inner diameter of the needle connection opening (2).

3. The fluid-filled bladder consumable for knee joint effusion in orthopedics according to claim 2, characterized in that, The liquid bladder opening (3) is connected to a transparent and elastic liquid extraction part (4). The liquid extraction part (4) has a funnel-shaped structure. The liquid outlet at the top of the liquid extraction part (4) is connected to the liquid bladder opening (3). The inner diameter of the liquid extraction part (4) is smaller than the inner diameter of the needle connection port (2).

4. The fluid-filled bladder consumable for knee joint effusion in orthopedics according to claim 3, characterized in that, The capsule (1) is ellipsoidal in shape.

5. A device for extracting effusion from the knee joint in orthopedics, characterized in that, The consumable includes a liquid capsule as described in any one of claims 1 to 4, wherein a needle connector (2) is connected to a puncture needle assembly, the puncture needle assembly including a grip (5) covering the outside of the needle connector (2), and a plurality of triangular needles (6) are provided on the bottom surface of the grip (5), the plurality of triangular needles (6) being located inside the capsule body (1).

6. The device for extracting knee joint effusion according to claim 5, characterized in that, The grip (5) includes a sealing surface (5-1), which covers the outside of the needle connection port (2) and seals the two. A triangular needle (6) is disposed on the bottom surface of the sealing surface (5-1), and a handle (5-2) is disposed on the top surface of the sealing surface (5-1).

7. The device for extracting knee joint effusion according to claim 6, characterized in that, The handle (5-2) is a flat, round gourd shape, and the surface of the handle (5-2) is frosted.

8. The device for extracting knee joint effusion according to claim 6, characterized in that, The bottom surface of the sealing surface (5-1) is detachably connected to a needle port (7) made of elastic material. The needle port (7) is a ring structure. The inside of the ring of the needle port (7) is a groove. The hand-held end of the triangular needle (6) is inserted into and fixed in the groove.

9. The device for extracting knee joint effusion according to claim 5, characterized in that, The number and arrangement of needle ports (7) are adapted to the disease.

10. The device for extracting knee joint effusion according to claim 5, characterized in that, The size of the needle opening (7) is adapted to the size of the three-edged needle (6) used to treat the disease.

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