CN116173339B - Treatment device for treating knee joint degenerative disease - Google Patents
Treatment device for treating knee joint degenerative disease Download PDFInfo
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- CN116173339B CN116173339B CN202310093008.6A CN202310093008A CN116173339B CN 116173339 B CN116173339 B CN 116173339B CN 202310093008 A CN202310093008 A CN 202310093008A CN 116173339 B CN116173339 B CN 116173339B
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- 210000000629 knee joint Anatomy 0.000 title claims abstract description 71
- 238000011282 treatment Methods 0.000 title claims abstract description 33
- 208000015122 neurodegenerative disease Diseases 0.000 title abstract description 15
- 239000007924 injection Substances 0.000 claims abstract description 53
- 238000002347 injection Methods 0.000 claims abstract description 53
- 238000011010 flushing procedure Methods 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000011084 recovery Methods 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 238000005086 pumping Methods 0.000 claims abstract description 11
- 230000005786 degenerative changes Effects 0.000 claims description 15
- 238000003384 imaging method Methods 0.000 claims description 15
- 230000001225 therapeutic effect Effects 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000002699 waste material Substances 0.000 claims description 10
- 210000001519 tissue Anatomy 0.000 claims description 9
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- 230000002757 inflammatory effect Effects 0.000 claims description 7
- 230000002262 irrigation Effects 0.000 claims description 3
- 238000003973 irrigation Methods 0.000 claims description 3
- 206010061218 Inflammation Diseases 0.000 claims 1
- 230000004054 inflammatory process Effects 0.000 claims 1
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Abstract
The invention discloses a treatment device for treating knee joint degenerative disease, which comprises: the device comprises a flushing liquid, a storage container, a recovery container, an injection pipeline, two return pipelines, two pumps, a detection component and a controller, wherein the controller is electrically connected with the pumps and the detection component and is used for controlling the pumping work of the pumps and the detection work of the detection component; the three pipelines further comprise puncture needles fixedly connected with the front ends of the pipelines, one end of the injection pipeline is inserted into the storage container, the other end of the injection pipeline is inserted into the first inner cavity of the knee joint cavity through the puncture needles, one ends of the two return pipelines are respectively connected with the second inner cavity and the third inner cavity of the knee joint cavity through the puncture needles, the other ends of the two return pipelines are respectively inserted into the recovery container, the position of the first inner cavity is higher than that of the second inner cavity and the third inner cavity, and the injection pipeline and the two return pipelines are mutually communicated in the knee joint cavity. The treatment device has the advantages of simple structure, convenient operation, accurate automatic control and thorough flushing.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a treatment device for treating knee joint degenerative disease.
Background
Arthritis is called world-first disability disease, and about 4 hundred million people are worldwide arthritis patients, and more than 1 hundred million people are arthritis patients in China, most of which are degenerative diseases. Degenerative changes occur in the knee joint, hip, spine, ankle, etc., with knee joint degenerative changes being the most common. Knee joint degenerative diseases, also known as osteoarthritis, osteoarthropathy, degenerative joint disease, proliferative arthritis, hypertrophic arthritis, senile arthritis, etc., are the most common chronic and progressive joint diseases. The pathological characteristics of the composition are degeneration and destruction of articular cartilage, subchondral bone hardening, joint edge and subchondral bone reactive hyperplasia and osteophyte formation. With the arrival of an aging society and the improvement of life expectancy, patients with knee joint degenerative disease rise year by year, and the knee joint degenerative disease greatly influences the life quality of the patients, bringing a heavy burden to families and society.
The current treatment methods for treating knee joint degenerative diseases include two main methods, namely non-operative treatment and operative treatment. Non-operative therapies including physiotherapy, medicine, injection therapy, and Chinese medicine treatment. Surgical procedures, including knee irrigation, knee arthroscopic exploration and clearance, and knee replacement. The knee joint irrigation has remarkable treatment effect on degenerative joint diseases of knee joints, can be used as an important means for conservative treatment of early-stage and medium-stage osteoarthropathy, can delay the joint replacement time for patients with advanced-stage osteoarthropathy, and meets the needs of different patients. The treatment method is simple to operate, has small wound and low price, is convenient for doctors to operate, and is a minimally invasive treatment method worthy of popularization. However, manual blind puncture is adopted clinically at present, manual operation is complex, flushing is not thorough, and treatment effect is poor; or the adopted treatment device has complex structure, inconvenient operation and incomplete flushing.
Therefore, there is a need for a therapeutic device for treating degenerative changes of the knee joint that is simple in design and structure, easy to operate, and thorough to rinse.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention aims to provide a treatment device for treating knee joint degenerative disease, which has the advantages of simple structure, convenient operation, accurate automatic control and thorough flushing.
Technical proposal
The invention adopts the following technical scheme: a treatment device for treating degenerative changes of a knee joint, comprising: a flushing liquid; a storage container for storing the rinse liquid; a recovery vessel for recovering waste inflammatory tissue fluid and rinsing fluid; the injection pipeline also comprises a puncture needle fixedly connected with the front end of the pipeline, one end of the injection pipeline is inserted into the storage container, and the other end of the injection pipeline is inserted into the first inner cavity of the knee joint cavity through the puncture needle; the reinfusion pipeline also comprises a puncture needle fixedly connected with the front end of the reinfusion pipeline, one end of the reinfusion pipeline is inserted into the second inner cavity of the knee joint cavity through the puncture needle, and the other end of the reinfusion pipeline is inserted into the recovery container; the reinfusion pipeline also comprises a puncture needle fixedly connected with the front end of the reinfusion pipeline, one end of the reinfusion pipeline is inserted into the third inner cavity of the knee joint cavity through the puncture needle, and the other end of the reinfusion pipeline is inserted into the recovery container; the position of the first inner cavity is higher than the positions of the second inner cavity and the third inner cavity; the injection pipeline, the return pipeline and the return pipeline are respectively provided with a connecting opening at the outer sides, and are mutually communicated in the knee joint cavity in a mode of mutually inserting the connecting openings in pairs; two pumps, one of which is connected to the injection line for pumping the rinsing liquid in the storage container into the injection line; the other pump is connected with a feedback pipeline and is used for pumping the waste inflammatory tissue liquid and the flushing liquid in the feedback pipeline into the recovery container; a detection component for detecting a performance index of the pipeline; and a controller electrically connected to the pump and the detection member for controlling the operation of the pump and the detection member.
Further, the detection component comprises a pressure sensor, wherein the pressure sensor is used for detecting the pressure value in the knee joint cavity before and after treatment.
Further, the number of the pressure sensors is 3, and the pressure sensors are correspondingly arranged on the inner side walls of the injection pipeline and the two feedback pipelines close to the front end.
Further, the detection component comprises a light source optical imaging component for intra-knee joint connection, positioning and exploration.
Further, the number of the light source photo-mirror imaging parts is 3, and the light source photo-mirror imaging parts are correspondingly arranged on the outer side walls of the injection pipeline and the two return pipelines close to the front end.
Furthermore, the injection pipeline, the two feedback pipelines and the puncture needles at the front ends of the injection pipeline and the two feedback pipelines are all in buckle type fixed connection.
Further, the injection pipeline and the two return pipelines are provided with a plurality of through holes around the outer wall of the pipeline, and the through holes are distributed at intervals along the length direction of the pipeline.
Further, the pipe diameters of the injection pipe and the two return pipes are not more than 2mm.
Further, the flushing liquid is medical trioxywater, wherein the trioxygen concentration is 20-80 mug/ml.
Further, the trioxygen concentration is 45 mug/ml, and the medical trioxywater concentration is 10 mug/ml.
Compared with the prior art, the invention has the beneficial effects that:
1. The medical trioxywater is selected as flushing liquid, wherein the concentration of the trioxywater is 20-80 mug/ml, preferably 45 mug/ml, and the concentration of the prepared trioxywater is 10 mug/ml. The medical trioxygen water is used as the flushing liquid to flush the knee joint cavity of the patient in the treatment device for treating knee joint degenerative disease, and the early clinical treatment data prove that the relieving rate of the knee joint pain of the patient can reach 80 percent, the activity degree of freedom of the knee joint of the patient is greatly improved, the treatment satisfaction of the clinical patient is improved, and the clinical significance is great.
2. The treatment device for treating knee joint degenerative disease realizes the flushing treatment in the knee joint cavity through the injection pipeline, the two feedback pipelines, the two pumps, the one controller, the three pressure sensors, the three light source optical imaging components and the specific detail design of the pipelines, and has the advantages of simple structure, convenient operation, automatic control and thorough flushing.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described. It is evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic view showing the overall structure of a therapeutic apparatus for treating degenerative changes of knee joint according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram corresponding to the three pipes in fig. 1.
Reference numerals in the drawings represent respectively: 1. storage container, injection pipeline, return pipeline, recovery container, pump, controller, connection opening, etc. the storage container, injection pipeline, return pipeline, recovery container, pump, controller, connection opening, etc. are respectively connected with the storage container, injection pipeline, return pipeline, recovery container, pump, controller, connection opening, 2-2, 3-2, 4-2, through holes, 2-3, 3-3, 4-3, puncture needles, 2-4, 3-4, 4-4, pressure sensors, 2-5, 3-5, 4-5, light source optical lens imaging components.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
A treatment apparatus for treating degenerative changes of the knee joint, as shown in fig. 1-2, comprising: a flushing liquid; a storage container 1, said storage container 1 for storing said rinse liquid; a recovery container 5, said recovery container 5 being used for recovering waste inflammatory tissue liquid and washing liquid; an injection pipeline 2, wherein the injection pipeline 2 further comprises a puncture needle 2-3 fixedly connected with the front end of the pipeline, one end of the injection pipeline 2 is inserted into the storage container 1, and the other end of the injection pipeline 2 is inserted into a first inner cavity of the knee joint cavity through the puncture needle 2-3; a feedback pipeline 3, wherein the feedback pipeline 3 also comprises a puncture needle 3-3 fixedly connected with the front end of the pipeline, one end of the feedback pipeline 3 is inserted into the second inner cavity of the knee joint cavity through the puncture needle 3-3, and the other end is inserted into the recovery container 5; a feedback pipeline 4, wherein the feedback pipeline 4 also comprises a puncture needle 4-3 fixedly connected with the front end of the pipeline, one end of the feedback pipeline 4 is inserted into a third inner cavity of the knee joint cavity through the puncture needle 4-3, and the other end is inserted into the recovery container 5; the position of the first inner cavity is higher than the positions of the second inner cavity and the third inner cavity; the injection pipeline 2, the return pipeline 3 and the return pipeline 4 are respectively provided with a connecting opening at the outer sides, and the injection pipeline 2, the return pipeline 3 and the return pipeline 4 are mutually communicated in the knee joint cavity in a mode of mutually inserting the connecting openings in pairs; two pumps 6, 7, the pump 6 being connected to the injection line 2 for pumping the rinsing liquid in the storage vessel 1 into the injection line 2; the pump 7 is connected with the feedback pipelines 3 and 4 and is used for pumping the waste liquid of inflammatory tissues and the flushing waste liquid in the feedback pipelines 3 and 4 to the recovery container 5; a detection component for detecting a performance index of the pipeline; a controller 8, said controller 8 being electrically connected to said pumps 6, 7 and said detecting means for controlling the pumping operation of said pumps 6, 7 and the detecting operation of said detecting means.
The detection component comprises a pressure sensor and a light source light mirror imaging component. The number of the pressure sensors and the number of the imaging components of the light source mirror are 3. Specifically, to facilitate accurate positioning, connection and exploration of the three ducts within the knee joint cavity, a light source mirror imaging component 2-5, 3-5, 4-5 is disposed on the outer side wall of the three ducts near the front end, respectively. The light source optical mirror imaging component mainly comprises a lens with a light source, and the imaging system is a common imaging system in the prior art. In order to detect the pressure values in the three pipelines before and after flushing and identify the disease diagnosis and the improvement degree after treatment in the joint cavity for follow-up observation, pressure sensors 2-4, 3-4 and 4-4 are respectively arranged on the inner side walls of the three pipelines close to the front end.
In terms of three-pipe design, in order to achieve that three pipes are mutually communicated in the knee joint cavity of a patient, as shown in fig. 1-2, the injection pipe 2, the return pipe 3 and the side wall of the return pipe 4 are respectively provided with a connecting opening 2-1, 3-1 and 4-1, the front end of the return pipe 3 is inserted into the connecting opening 2-1 of the injection pipe 2, the front end of the injection pipe 2 is inserted into the connecting opening 4-1 of the return pipe 4, the front end of the return pipe 4 is inserted into the connecting opening 3-1 of the return pipe 3, the injection pipe 2, the return pipe 3 and the return pipe 4 are mutually communicated in the knee joint cavity in a mode of mutually inserting the connecting openings two by two, the connecting openings can be oval or round, and the sizes of the connecting openings can be matched with the pipe diameters. In order to facilitate the connection and the disassembly of each pipeline and the corresponding puncture needles, the three pipelines are connected with the puncture needles at the front ends of the pipelines in a buckle type. In order to enable the flushing liquid to smoothly flow into each chamber of the knee joint to realize repeated and thorough flushing, a plurality of through holes are formed in the periphery of the outer wall of each pipeline, and the through holes are distributed at intervals along the length direction of the pipeline. The three pipelines can be made of PVC plastic or rubber, the pipe diameters of the three pipelines are not more than 2mm, and the thinner the pipe diameter design is, the better the pipe diameter design is, under the condition of ensuring the flow velocity, the less the wound area of the human body is involved.
In the aspect of selecting flushing liquid, medical trioxygen water is selected as the flushing liquid, wherein the concentration of the trioxygen is 20-80 mug/ml, and the preferable concentration of the trioxygen is 45 mug/ml, and the concentration of the prepared trioxygen water is 10 mug/ml. Pharmacological actions of medical trioxywater include: the sterilizing agent has a sterilizing rate of more than 99 percent for bacteria, viruses, fungi, mycoplasma and chlamydia, and can directly and instantaneously kill pathogens. Early medical studies abroad have demonstrated that trioxywater and iodine have the same bactericidal efficacy, far exceeding hydrogen peroxide and potassium permanganate. The medical trioxygen water is used as the flushing liquid to flush the knee joint cavity of the patient in the treatment device for treating knee joint degenerative disease, and the early clinical treatment data prove that the relieving rate of the knee joint pain of the patient can reach 80 percent, the activity degree of freedom of the knee joint of the patient is greatly improved, the treatment satisfaction of the clinical patient is improved, and the clinical significance is great.
When the treatment device is used, joint puncture is firstly carried out, the puncture points of the knee joint upper capsule of a clinical patient and the puncture points of the knee eyes on two sides are selected for positioning before puncture, local skin of the three puncture points is disinfected and spread, after local anesthesia measures are taken, the injection pipeline 2 is inserted into the first inner cavity of the knee joint cavity from the puncture points of the knee joint upper capsule through the puncture needle 2-3 of the injection pipeline 2, the return pipeline 3 is inserted into the second inner cavity of the knee joint cavity from one side of the knee eye through the puncture needle 3-3 of the return pipeline 3, and the return pipeline 4 is inserted into the third inner cavity of the knee joint from the other side of the knee eye through the puncture needle 4-3 of the return pipeline 4. Because the outside of three pipelines all is equipped with a connection opening, sets up a light source mirror imaging unit simultaneously on the lateral wall that three pipelines are close to the front end respectively, detects the accurate positioning that realizes three pipeline interconnect through controller control light source mirror imaging unit, adopts two-to-two interconnect connection opening's mode after the location for three pipeline communicates each other in knee joint intracavity.
When the flushing is started, the controller 8 controls the pump 6 to start, the pump 6 pumps the medical trioxygen water in the storage container 1 into the injection pipeline 2, and the injection pipeline 2 and the return pipelines 3 and 4 are communicated with each other in the knee joint cavity, and a plurality of through holes are formed in the periphery of the outer wall of the pipeline, and the through holes are distributed at intervals along the length direction of the pipeline, so that after the medical trioxygen water is input into the first inner cavity of the knee joint cavity through the injection pipeline 2 and the through holes 2-2 on the injection pipeline 2, the medical trioxygen water flows into the second inner cavity and the third inner cavity of the knee joint cavity through the through holes 3-2 and 4-2 of the two return pipelines 3 and 4, that is, the medical trioxygen water can freely enter and exit through the through holes of the three pipelines, so that the hyperplasia synovium of the knee joint cavity can be repeatedly and fully flushed, inflammatory mediums such as effusion, shedding necrotic tissues and the like in the joint cavity can be cleared, and undeviated degeneration tissues and pathogenic factors (enzymes, immune complex, harmful immune products and the like) can be accelerated, meanwhile, the intra-articular environment is improved, the joint metabolic fluid and the benign circulation of the joint fluid and the chondrus fluid can be restored to the detumescence, and the benign circulation can be removed.
Because the pressure sensors 2-4, 3-4 and 4-4 are respectively arranged on the inner side walls of the front ends of the three pipelines and are used for detecting the pressure values in the three pipelines before and after flushing, when the pressure difference value in the pipelines before and after flushing reaches a first preset value, the controller 8 controls the pump 6 to stop pumping action, and simultaneously controls the pump 7 to start pumping action, because the height of the first inner cavity is higher than that of the second inner cavity and the third inner cavity, under the pumping action of the gravity and the pump 7, the flushed inflammatory tissue waste liquid and flushing waste liquid are returned to the recovery container 5 through the two feedback pipelines 3 and 4, and when the pressure difference value in the pipelines before and after flushing reaches a second preset value, the pump 7 is controlled to stop pumping action, so that part of medical trioxygen water is remained in the knee joint cavity, a longer-term treatment effect is ensured, and the whole automatic and thorough flushing treatment process of the degenerative disease of the knee joint is completed. Of course, other specific control logic may be employed with the present invention.
Compared with the prior art, the treatment device for treating knee joint degenerative disease has the advantages of simple structure, convenient operation, automatic control, thorough flushing and remarkable and durable treatment effect.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A therapeutic device for treating degenerative changes of the knee joint, characterized in that:
Comprising the following steps:
A flushing liquid;
-a storage container (1), said storage container (1) being adapted to store said rinsing liquid;
-a recovery container (5), said recovery container (5) being adapted to recover waste inflammatory tissue fluids and irrigation fluids;
An injection pipeline (2), wherein the injection pipeline (2) further comprises a puncture needle (2-3) fixedly connected with the front end of the pipeline, one end of the injection pipeline (2) is inserted into the storage container (1), and the other end of the injection pipeline is inserted into the first inner cavity of the knee joint cavity through the puncture needle (2-3);
the reinfusion pipe (3) further comprises a puncture needle (3-3) fixedly connected with the front end of the reinfusion pipe (3), one end of the reinfusion pipe (3) is inserted into the second inner cavity of the knee joint cavity through the puncture needle (3-3), and the other end of the reinfusion pipe is inserted into the recovery container (5);
The reinfusion pipe (4) further comprises a puncture needle (4-3) fixedly connected with the front end of the reinfusion pipe (4), one end of the reinfusion pipe (4) is inserted into the third inner cavity of the knee joint cavity through the puncture needle (4-3), and the other end of the reinfusion pipe is inserted into the recovery container (5); the position of the first inner cavity is higher than the positions of the second inner cavity and the third inner cavity; the injection pipeline (2), the return pipeline (3) and the return pipeline (4) are respectively provided with a connecting opening at the outer sides, and the injection pipeline (2), the return pipeline (3) and the return pipeline (4) are mutually communicated in the knee joint cavity in a mode of mutually inserting the connecting openings in pairs;
-a first pump (6) and a second pump (7), the first pump (6) being connected to the injection conduit (2) for sucking the flushing liquid in the storage container (1) into the injection conduit (2); the second pump (7) is connected with the feedback pipeline (4) and is used for pumping the inflammation tissue waste liquid and the flushing waste liquid in the feedback pipeline (4) into the recovery container (5);
a detection component for detecting a performance index of the pipeline;
And the controller (8) is electrically connected with the first pump (6), the second pump (7) and the detection component and is used for controlling the suction operation of the first pump (6) and the second pump (7) and the detection operation of the detection component.
2. The therapeutic device for treating degenerative changes of the knee joint according to claim 1, wherein: the detection part comprises a pressure sensor and a light source light mirror imaging part, wherein the pressure sensor is used for detecting the pressure value in the knee joint cavity before and after treatment, and the light source light mirror imaging part is used for connecting, positioning and probing the knee joint cavity.
3. The therapeutic device for treating degenerative changes of the knee joint according to claim 2, wherein: the number of the pressure sensors is 3, and the pressure sensors are correspondingly arranged on the inner side wall, close to the front end, of the injection pipeline (2), the return pipeline (3) and the return pipeline (4).
4. The therapeutic device for treating degenerative changes of the knee joint according to claim 2, wherein: the number of the light source light mirror imaging components is 3, and the light source light mirror imaging components are correspondingly arranged on the outer side wall, close to the front end, of the injection pipeline (2), the return pipeline (3) and the return pipeline (4).
5. The therapeutic device for treating degenerative changes of the knee joint according to claim 1, wherein: the injection pipeline (2), the reinfusion pipeline (3) and the reinfusion pipeline (4) are fixedly connected with the puncture needle at the front end of the injection pipeline in a fastening mode.
6. The therapeutic device for treating degenerative changes of the knee joint according to claim 1, wherein: the injection pipeline (2), the reinfusion pipeline (3) and the reinfusion pipeline (4) are all provided with a plurality of through holes around the outer wall of the pipeline, and the through holes are distributed at intervals along the length direction of the pipeline.
7. The therapeutic device for treating degenerative changes of the knee joint according to claim 1, wherein: the pipe diameters of the injection pipeline (2), the return pipeline (3) and the return pipeline (4) are not more than 2mm.
8. The therapeutic device for treating degenerative changes of the knee joint according to claim 1, wherein: the flushing liquid is medical trioxygen water, wherein the trioxygen concentration is 20-80 mug/ml.
9. The therapeutic device for treating degenerative changes of the knee joint according to claim 8, wherein: the concentration of the trioxygen is 45 mug/ml, and the concentration of the medical trioxygen water is 10 mug/ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310093008.6A CN116173339B (en) | 2023-01-31 | Treatment device for treating knee joint degenerative disease |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310093008.6A CN116173339B (en) | 2023-01-31 | Treatment device for treating knee joint degenerative disease |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116173339A CN116173339A (en) | 2023-05-30 |
| CN116173339B true CN116173339B (en) | 2024-07-09 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4550748A (en) * | 1983-04-08 | 1985-11-05 | Warner-Lambert Company | Fluid flow regulating unit for intravascular catheter systems |
| CN109157274A (en) * | 2018-10-24 | 2019-01-08 | 蔡华蕾 | One kind prevents adhesion uterine cavity bracket and its application method |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4550748A (en) * | 1983-04-08 | 1985-11-05 | Warner-Lambert Company | Fluid flow regulating unit for intravascular catheter systems |
| CN109157274A (en) * | 2018-10-24 | 2019-01-08 | 蔡华蕾 | One kind prevents adhesion uterine cavity bracket and its application method |
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