• Journal of KSNVE
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• v.10 no.2
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• pp.299-305
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• 2000

In this study, the characteristics of transmitted vibration on hand-arm system are examined when operating electric hand tools. Also through the correlation analysis between anthroponetric data and transmitted vibration, and comparison study with appropriate amount of work done based on the ISO criteriaa, the basic data for the ergonomic work design can be presented. The types of electric tools and works for the experiment are drill (general type and impact type), grinder, wire brush and steel to analyze the characteristics of transmitted vibrations, the amount of transmitted vibrations in X, Y and Z direction at tool(T), hand(H), wrist(W), and the joint between foream and upper arm(A) were measured at the frequency range of 6.3∼1000[HZ]. Also, the limit of human exposure to vibration, and the response of frequency were conducted.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.1 no.1
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• pp.65-74
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• 1995

There is no line of demarcation between the shoulder and elbow regions. Pain In the arm may originate at the shoulder with reference downwards or less often at the elbow with reference upwards. Most pains indicated by the patient at the elbow or forearm have a local origin, since at the more distal part of the upper limb the capacity for correct localization is good. Once it is clear that the elbow region is at fault, the joint and the muscles about it are tested by ten movements. 1. Four. Passive extension, flexion, pronation, supination-full range, LOM, painful, painless. 2. Four. Resisted extension, flexion, pronation, supination-strong, weak, painful, painless. 3. Two. Resisted flexion, extension at the wrist-painful, painless. The muscles that perform theses two movements arise from the humeral epicondyles and a lesion in either often causes pain felt at the elbow although the tissuse affected is not functionally a part of the elbow (i. e. Tennis elbow and Golfer's elbow).

• Journal of Korean Neurosurgical Society
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• v.37 no.4
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• pp.293-295
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• 2005

Posterior interosseous nerve(PIN) syndrome is an entrapment of the deep branch of the radial nerve just distal to the elbow joint. It is caused by acute trauma or masses compressing the nerve. We report an unusual case of PIN syndrome with wrist drop caused by compression of the nerve by anomalous vascular leash. The patient has recovered with the surgical decompression of the offending vessels and arcade of Frohse.

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 1996.06c
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• pp.1063-1072
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• 1996

Fruit harvesting robots should have more diversity and flexibility in the working conditions and environments than industrial robots. This paper presents an efficient optimization algorithm for redundant manipulators to avoid obstacles using dynamic performance criteria, while the optimization schemes of the previous studies used the performance criteria using kinematic approach. Feasibility and effectiveness of this algorithm were tested through simulations on a 3-degrees-of-freedom manipulator made for this study. Only the position of the end-effector was controlled , which requires only three degrees of freedom. Remaining joints, except for the wrist roll joint, which does not contribute to the end-effector linear velocity, provide two degrees of redundancy. The algorithm was effective to avoid obstacles in the workspace even through the collision occurred in extended workspace, and it was found be to a useful design tool which gives more flexibility to design conditions nd to find the mechanical constraints for fruit harvesting robots.

• Journal of the Korean Society for Precision Engineering
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• v.22 no.10 s.175
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• pp.218-224
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• 2005

Arthroscopy is a surgical procedure orthopedic surgeons use to visualize, diagnose and treat problems inside a joint. In usual, since the arthroscopic surgery is more accurate and minimally invasive than through 'open' surgery, the surgery of knee, shoulder, and wrist using auto-shaver is increasing in recent. However, repetitive use of arthroscopic-shaver may induce the second infection, hence the disposable arthroscopic-shaver should be developed. In this paper, a unique power transmission mechanism using DC motor, gear trains, and link mechanism is proposed for disposable arthroscopic-shaver and some test results of tissue cutting are introduced.

• Clinics in Shoulder and Elbow
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• v.19 no.3
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• pp.163-167
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• 2016

Septic arthritis in neonates is a rare condition. A failure to make an early diagnosis of septic arthritis in neonates may leave a permanent disability as a result of a delayed treatment. Thus, septic arthritis, requires a prompt diagnosis and a timely treatment especially in this subset of patients. In this case report, we describe our treatment protocol for septic arthritis and concurrent osteomyelitis in the right shoulder of a 28-day-old newborn. Using 2.4 mm wrist arthroscopy, we performed an arthroscopic irrigation and drainage, to remove intra-articular debris and inflammatory tissue, and multiple drilling. We report a satisfactory clinical outcome without any postoperative complications or side effects.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2003.05a
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• pp.899-902
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• 2003

This study was tested for the bending stress analysis of hand spl int for Hemiplegic Patients. Hemiplegia was represented the stroke and the cerebral palsy. Hand splints of four materials was an Orthoplast hand splint, a Polypropylene hand splint, a Yogips hand splint and an Aluminum hand splint. The Stress Analysis system was made by the electronic oscilloscope, strain gage sensors, amplifier, A/D converter, PC with C program. It will be able to using the important data in spl int design. The results of analysis were obtained various different graphes and maximum data in an Orthoplast hand splint, a Polypropylene hand splint, a Yogips hand splint and an Aluminum hand spl int.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.22 no.52
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• pp.43-52
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• 1999

In this study, the vibration damping characteristics of the powered hand tools transmitted in hand-arm system were examined and compared. The types of powered tools for the experiment are general typed drill, impact drill, grinder, and wire brush. To analyze the characteristics of vibration damping, the magnitude of acceleration of vibration on X, Y, and Z direction at tool, hand, wrist, and the joint between forearm and upper arm were measured respectively. The results indicated that impact drill generated the highest value of acceleration of vibration among the four types of tools used in the experiments. The highest value of the amount of acceleration of vibration was found in the direction of Y. And the amount of acceleration of vibration was significantly affected by the type of tool, type of work, and pushing forces. As become the more distant from the tool, the smaller the amount of acceleration of vibration. Also, the bigger the pushing force at the tool, the higher the acceleration of vibration.

• The Korean Journal of Pain
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• v.7 no.1
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• pp.34-38
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• 1994

The common disorder called tennis elbow exhibits typical clinical characteristics, i.e. painful condition at the lateral aspect of elbow joint on resisted wrist extension. However an exact cause for this painful condition has not yet been established. Many observers believe that the usual lesion of tennis elbow is a partial rupture of the extensor tendon at the tenoperiosteal juction on the lateral epicondyle of humerus. However the mechanism of the tendon rupture has never been explained. Conservative treatments on the tender area have been the most common therapeutic modalities for pain relief of tennis elbow. Based on my clinical experiences and anatomical studies, I discerned that tennis elbow is a periostitis of lateral epicondyle of humerus secondary to spastic contraction of muscular belly of extensor carpi radialis after over-stretched injury. Therefore, spasmolytic treatment on the extensor carpi radialis muscle provided a favorable result for permanent relief for tennis elbow pain.

• Journal of Acupuncture Research
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• v.40 no.1
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• pp.61-66
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• 2023

Very few studies have been reported on upper extremity replantation following traumatic amputation. This case study aimed to report the progress of a patient treated with complex Korean medicine for 1 year after elbow replantation. The patient mainly complained of forearm sensory loss, muscle weakness, and hand pain after undergoing upper limb amputation and emergency replantation. He was hospitalized for approximately 50 days and then received outpatient treatment for approximately 10 months, followed by electroacupuncture, moxibustion, Chuna, herbal medicine, and transcutaneous electrical nerve stimulation. The muscle strength of the wrist joint improved to good (flexion) and fair (extension), and the forearm sensation was partially recovered approximately 10 months after the onset. To our knowledge, this is the first case report on replantation rehabilitation in Korean medicine, and it suggests that complex Korean medicine treatment might be beneficial for patients undergoing replantation after upper extremity amputation.