CN110693535B - Caliper type skin tissue fluid collecting device - Google Patents
Caliper type skin tissue fluid collecting device Download PDFInfo
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- CN110693535B CN110693535B CN201911011881.6A CN201911011881A CN110693535B CN 110693535 B CN110693535 B CN 110693535B CN 201911011881 A CN201911011881 A CN 201911011881A CN 110693535 B CN110693535 B CN 110693535B
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- spring
- skin
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- rail
- cavity
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- 239000012530 fluid Substances 0.000 title claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000741 silica gel Substances 0.000 claims abstract description 15
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000005096 rolling process Methods 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims abstract description 3
- 230000007547 defect Effects 0.000 abstract description 7
- 238000007790 scraping Methods 0.000 abstract description 7
- 238000003825 pressing Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 208000035473 Communicable disease Diseases 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 210000001519 tissue Anatomy 0.000 description 23
- 206010024229 Leprosy Diseases 0.000 description 15
- 241000193830 Bacillus <bacterium> Species 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 208000015181 infectious disease Diseases 0.000 description 4
- 230000000740 bleeding effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 210000004247 hand Anatomy 0.000 description 3
- 206010020718 hyperplasia Diseases 0.000 description 3
- 210000004400 mucous membrane Anatomy 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 208000005392 Spasm Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000002390 hyperplastic effect Effects 0.000 description 2
- 210000001165 lymph node Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000035755 proliferation Effects 0.000 description 2
- 238000010186 staining Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- 235000009161 Espostoa lanata Nutrition 0.000 description 1
- 240000001624 Espostoa lanata Species 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 206010040893 Skin necrosis Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 210000003756 cervix mucus Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 210000000865 mononuclear phagocyte system Anatomy 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 210000000578 peripheral nerve Anatomy 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 210000000582 semen Anatomy 0.000 description 1
- 210000003491 skin Anatomy 0.000 description 1
- 244000005714 skin microbiome Species 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/0045—Devices for taking samples of body liquids
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a caliper type skin tissue fluid collecting device which comprises a secondary roller, a disposable silica gel sleeve, return steel, a regulating handle, a wire fixing window, a cavity rail, a spring hole, a spring wire, a spring seat, a fixed hole, a rotary sleeve, a main roller and a skin rolling handle. The invention is designed by utilizing the principle of the spring supporting of the caliper and the principle of the rolling of the wringing roller, so that the operation force is controllable and adjustable, the pulling effect is obvious by utilizing the friction force between the skin and the roller, and especially for patients with infectious diseases, the operator is not in direct contact with the skin of the patient any more during operation, and the tissue scraping operation is carried out by hands, so that the invention is safe and reliable; the defect and the defect existing in the existing freehand tissue fluid collection are effectively overcome, the pulling, pressing and fixing of the corresponding movable skin can be completely realized, meanwhile, the gap that related medical devices are lacking in the related field is filled, and auxiliary devices are provided for the collection and extraction of the skin tissue fluid of a patient.
Description
Technical Field
The invention belongs to an experimental device, relates to an auxiliary instrument for physical examination of leprosy patients, in particular to a caliper type skin tissue fluid collecting device which is suitable for the early preparation of tissue fluid collection of tissues such as human skin and the like and avoids invasive operation, infection and the like.
Background
Leprosy patients are the natural host of leprosy bacillus. The leprosy bacillus is widely distributed in a patient body and is mainly found in some cells of reticuloendothelial systems such as skin, mucous membrane, peripheral nerves, lymph nodes, liver and spleen and the like. The leprosy bacillus is mainly discharged out of the body through the broken skin and mucous membrane, and other leprosy bacillus exists in milk, tears, seminal fluid and vaginal secretion, but the bacterial load is small. The conventional examination means of leprosy patients mainly comprises the steps of periodically detecting the content and distribution of leprosy bacillus, and is most commonly used as a tissue fluid scraping and collecting method.
The method mainly comprises the following steps: mainly draws materials from skin and mucous membrane, and can be used for lymph node puncture bacteria examination if necessary. Skin bacteria checking and material obtaining: active skin treatment is selected to disinfect the skin. When in examination, the patient wears the disinfection glove, the skin of the patient is pinched and lifted by thumb and food of the left hand to whiten the local skin, then the right hand holds the knife to cut an incision with the length of 5mm and the depth of 3mm, the tissue fluid is scraped by the knife edge and coated on the slide, and acid-resistant staining and microscopic examination are fixed. The cotton ball is pressed, and the number of the material-taking parts is determined according to the requirement. Because the leprosy patient needs to collect specimens regularly, the leprosy disease has long years, and the leprosy pathology has damage to the skin and nerves of the tissues at the extremities, the proliferation of the skin tissue at the body surface is serious, the activity is poor, the body fluid circulation is poor, and the clinical work of medical workers is greatly difficult.
The current tissue fluid collection mode of leprosy patients has the following defects: (1) severe skin tissue hyperplasia, manual pressure exertion is laborious; (2) poor skin mobility, difficulty in manual pulling; (3) the manual pressing force is not uniform enough and bleeding is easy; (4) fully manual operation, low working efficiency; (5) The pulling, scraping and collecting requirements of the two hands are tightly matched, and the collecting success rate is low; (6) Fully manual operation, lack of research and development of related medical appliances; (7) The operator is in direct contact with the skin of the patient during operation, the risk of infection increases; (8) The safety is poor, and the doctor is easy to accidentally injure the operator.
Based on the defects and drawbacks, a new medical appliance for collecting skin tissue fluid of leprosy patients is urgently needed to be designed.
Disclosure of Invention
The invention aims to solve the problem of skin tissue pickup of leprosy patients, and provides a caliper type skin tissue fluid pickup device, which consists of a slave roller 1, a disposable silica gel sleeve 2, a return steel 3, a handle 4, a wire fixing 5, a rail window 6, a cavity rail 7, a spring hole 8, a spring wire 9, a spring 10, a spring seat 11, a fixed hole 12, a rotary sleeve 13, a main roller 14 and a skin winding handle 15. The hollow inside of the strip-shaped steel 3 forms a cavity rail 7, and the center of the front wall of the cavity rail 7 is partially missing along the longitudinal axis to form a rail window 6; the secondary roller 1 is sent out from the rear wall of one end of the cavity rail 7, forms a right angle with the cavity rail 7, is free from the other end of the roller 1, is sleeved with the disposable silica gel sleeve 2, is provided with three spring holes 8 on the rear wall of the other end of the cavity rail 7, and is internally provided with threads in the spring holes 8 to be meshed with the spring wires 9; a fixed hole 12 is formed in the middle of the upper wall of the cavity rail 7, and threads are turned in the hole and meshed with the fixed wire 5; the spring seat 11 moves in the cavity rail 7, one end of the spring seat 11 emits a rotary sleeve 13 and a handle 4, threads are arranged in the rotary sleeve 13 and are connected with one end of the main roller 14, the other end of the main roller 14 is connected with the skin rolling handle 15, disposable silica gel is sleeved on the main roller 14, the other end of the spring seat 11 abuts against the spring 10, the spring 10 moves in the cavity rail 7, and the other end of the spring 10 abuts against the spring wire 9. The handle 4 is L-shaped and moves horizontally in the cavity rail 7 to drive the spring seat 11 to move forwards and backwards.
The spring is supported by the spring and is always in the track cavity and can slide and is controlled by the elasticity of the spring.
When the device is used, the main roller 14 is moved to approach the auxiliary roller 1 to pull the skin, the movement of the main roller 14 is controlled by the spring seat 11, the spring seat is controlled by the spring force, the spring is compressed by changing different spring hole positions, the spring force is changed, the distance between the main roller 14 and the auxiliary roller 1 is adjusted, and the distance between the main roller 14 and the auxiliary roller 1 is adjusted by adjusting the handle 4 to move left and right in a fine adjustment mode. The disposable silica gel sleeve 2 on the main roller 14 and the auxiliary roller 1 plays roles in protecting skin and helping skin to pull up, and meanwhile, the disposable silica gel sleeve can be replaced at any time, so that sanitation is ensured.
The invention mainly adopts the principle of caliper spring extrusion, and is suitable for the pulling, pressing, fixing and the like of active skin tissues. The device is innovated to be an assisting instrument for collecting and extracting skin tissue fluid of a leprosy patient. He can completely realize pulling, pressing and fixing of the corresponding movable skin. The principle of the spring supporting of the caliper is utilized to enable the operation force to be controllable and adjustable; the design principle of the twisting roller rolling is that the friction force between the skin and the roller is utilized to make the pulling effect obvious; the operator is not in direct contact with the skin of the patient any more when operating, and the operator can operate by hands when scraping tissues, so that the device is safe and reliable; all defects and shortcomings existing in the existing manual tissue fluid collection are overcome, and the gap that related medical instruments are lacking in related fields is filled.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic view of the rear of the present invention.
FIG. 3 is a schematic view of the front face of the present invention.
Fig. 4 is a schematic diagram of the use.
Detailed Description
The invention is further described with reference to the drawings and examples.
Example 1A Caliper-type device for collecting skin tissue fluid
Referring to fig. 1-3, the device is composed of a secondary roller 1, a disposable silica gel sleeve 2, a return steel 3, a regulating handle 4, a fixed wire 5, a rail window 6, a cavity rail 7, a spring hole 8, a spring wire 9, a spring 10, a spring seat 11, a fixed hole 12, a rotary sleeve 13, a main roller 14 and a skin winding handle 15. The cavity rail 7 is formed by the hollow in the strip-shaped steel 3, a rail window 6 is formed by deleting the center of the front wall of the cavity rail 7 along the longitudinal axis, the strip-shaped steel is sent out from the rear wall of one end of the cavity rail 7 from the roller 1, forms a right angle with the cavity rail 7, is free from the other end of the roller 1, is sleeved with the disposable silica gel sleeve 2 from the roller 1, the disposable silica gel sleeve 2 can be replaced at any time, three spring holes 8 are formed in the rear wall of the other end of the cavity rail 7, threads are arranged in the spring holes 8 and meshed with the spring wires 9, and the spring wires 9 can be meshed with any one of the 3 spring holes 8 according to requirements, so that the elasticity of the spring is adjusted; the middle part of the upper wall of the cavity rail 7 is provided with a fixed hole 12, threads are turned in the hole and meshed with the fixed wire 5, the fixed wire 5 penetrates through the upper wall of the cavity rail 7, and the lower end of the fixed wire 5 is pressed against the spring seat 11 by rotating the fixed wire 5, so that the spring seat 11 is fixed and does not move any more; the elastic seat 11 moves in the cavity rail 7, one end of the elastic seat 11 emits a rotary sleeve 13 and a handle 4, threads are arranged in the rotary sleeve 13 and are connected with one end of the main roller 14, the other end of the main roller 14 is connected with the skin rolling handle 15, the main roller 14 is driven to freely rotate through the skin rolling handle 15, the elastic seat 11 is driven to move in the cavity rail 7, and disposable silica gel is sleeved on the main roller 14; the other end of the spring seat 11 is connected with a spring 10, the spring 10 runs in the cavity rail 7, the other end of the spring 10 is connected with a spring wire 9, the spring is compressed by adjusting the positions of the spring wire 9 in different spring holes 8, the elastic force is changed, the trend that the main roller 14 is close to the auxiliary roller 1 is kept, and the distance between the main roller 14 and the auxiliary roller 1 is adjusted; the handle 4 is L-shaped and moves horizontally in the cavity rail 7 to drive the spring seat 11 to move forwards and backwards, so that fine adjustment between the main roller 14 and the auxiliary roller 1 is realized.
Example 2a caliper device for collecting skin tissue fluid uses:
referring to fig. 1-4, the steps used are generally as follows:
1. The preparation stage: the surface of the skin to be measured (for example, the upper part of the knee) is sterilized, and referring to fig. 1, the disposable silicone cover 2 on the master roll 14 and the slave roll 1 is replaced. The return steel 3 is held by one hand (right hand), the slave roller 1 and the main roller 14 are separated, the elastic force condition between the two rollers is sensed, and if the elastic force is insufficient, the adjusting spring wire 9 is screwed into different spring holes 8 (the three spring holes 8 are arranged from the end of the return steel 3 to the middle, and the closer to the middle, the larger the generated elastic force is).
2. Skin pulling phase: the slave roller 1 and the main roller 14 are placed on skin to be picked, skin tissue to be picked is placed between the two rollers, the main roller 14 is driven to rotate by the other hand to slide in the direction of the slave roller 1 through the other hand rotating skin winding handle 15, the skin is driven to displace between the two rollers due to friction force, the slave roller 1 is kept motionless (namely, the two rollers are mutually closed), and the skin which is contacted with the two rollers and moves is accumulated in the area along with the reduction of the space between the two rollers and is extruded and protruded between the two rollers. The spring seat 11 is arranged in front of the roller 1 and is supported by the spring 10, and the spring seat 11 is always arranged in the rail cavity and can slide and is controlled by the elasticity of the spring.
The movement of the main roller 14 is controlled by the spring seat 11, the spring seat 11 is controlled by the spring force, the spring is compressed by changing the positions of different spring holes 8, the spring force is changed, the distance between the main roller 14 and the auxiliary roller 1 is adjusted, and the distance between the main roller 14 and the auxiliary roller 1 is finely adjusted by adjusting the handle 4 to move left and right.
The disposable silica gel sleeve 2 on the main roller 14 and the auxiliary roller 1 not only plays a role in pulling skin through friction resistance, but also plays a role in protecting the skin from skin necrosis caused by too tight extrusion for a long time, and meanwhile, the disposable silica gel sleeve 2 can be replaced at any time, so that sanitation is ensured, and cross infection is prevented.
3. Compression fixing stage: the skin accumulated between the two rolls will retract due to the stopping of the pressing of the two rolls, and the fixing wire 5 is required to fix the pressing force of the two rolls. The fixed wire 5 rotates downwards, so that the lower end of the fixed wire 5 is tightly pressed against the spring seat 11, the friction force between the spring seat 11 and the inner wall of the cavity rail 7 and between the spring seat 11 and the fixed wire 5 are increased along with the increase of the contact force, the spring seat 11 is kept static in the cavity rail 7, and the slave roller 1 and the main roller 14 are kept in a locking state with unchanged relative displacement. At this time, the skin rolling handle 15 can be rotated, the main roller 14 further extrudes and accumulates the extruded skin by using the friction force of the disposable silicone sleeve 2, and the extruded skin can whiten local skin under the control of extrusion.
4. Scraping: the tissue fluid is scraped by the other hand-held scraper on the local pressure-whitening skin, and is coated on a slide, and acid-fast staining is fixed and microscopic examination is carried out.
5. And (3) a loosening stage: referring to fig. 4, after the collection is completed, the fixing wire 5 is rotated upwards, the force applied to the spring seat 11 is eliminated, the locking state is released, the adjusting handle 4 is pushed towards the spring direction, the slave roller 1 and the main roller 14 are separated, the pressed skin is pulled to retract, the skin is successfully loosened, and the force applied to the spring seat 11 is eliminated.
Example 3 comparison of the use of the device according to the invention with a hand pinching method
The results are shown in Table 1, compared with the conventional manual pinching method using the apparatus of the present invention.
TABLE 1
| Manual work | Instrument for treating and preventing diseases | |
| Pulling type | Lifting and pulling device | Twisting press |
| Pressure-bearing mode | Planar compression | Linear compression |
| Difficulty in handling | In general | Simple and easy |
| Applicability(s) | Inapplicable to hyperplastic skin | Also suitable for hyperplastic skin |
| Force control | Can be used for a long time and is easy to spasm | Simple and easy |
| Safety of | Easily injure the operator himself | Safety device |
| Infectivity of infection | Large, direct contact with the skin | Small, indirect contact with skin |
| Acquisition success rate | Easy bleeding | High height |
| Degree of labor | Dense and easy to fatigue | Low and low |
| Stability of | The fingers are forced to spasm for a long time and unstable | Stabilization |
| Scientific stress | Compared with the original | Science of |
Through the comparison, the traditional manual pinching method is obvious in that the pressure is laborious, the manual pressure is even, and bleeding is easy; the operation is performed by full hand, and the working efficiency is low; the pulling, scraping and collecting requirements of the two hands are tightly matched, and the collecting success rate is low; when the manual operation is performed, the manual operation is directly contacted with the skin of a patient, the infection risk is increased, the safety is poor, the scraping knife is easy to accidentally injure the operator, the proliferation rate of skin tissues is serious, and when the activity of the skin is poor, the manual pulling can be more difficult. The device solves the defects existing in manual pinching, realizes safe and reliable skin pulling and sampling, effectively solves all the defects and shortcomings existing in the existing freehand tissue fluid collection, and fills the gap of the lack of related medical appliances in the related field.
Claims (2)
1. A calliper type skin tissue fluid collecting device is characterized by comprising a slave roller (1), a disposable silica gel sleeve (2), a return steel (3), a regulating handle (4), a fixed wire (5), a rail window (6), a cavity rail (7), a spring hole (8), a spring wire (9), a spring (10), a spring seat (11), a fixed hole (12), a rotary sleeve (13), a main roller (14) and a skin rolling handle (15), wherein a cavity rail (7) is formed by the hollow inside the return steel (3), the center of the front wall of the cavity rail (7) is partially missing along a longitudinal axis to form a rail window (6), the slave roller (1) is sent out from the rear wall of one end of the cavity rail (7) to form a right angle with the cavity rail (7), the slave roller (1) is free from the other end, the slave roller (1) is sleeved with the disposable silica gel sleeve (2), the rear wall of the other end of the cavity rail (7) is provided with three spring holes (8), the inner threads of the spring hole (8) are meshed with the spring wire (9), the middle part of the upper wall of the cavity rail (7) is provided with the fixed hole (12), the inner threads of the inner thread of the spring seat (11) are meshed with the spring wire (7), the inner threads of the cavity rail (7) are meshed with the inner threads of the spring seat (11) and the inner threads of the screw sleeve (13), the other end of the main roller (14) is connected with a skin rolling handle (15), the disposable silica gel sleeve (2) is sleeved on the main roller (14), the other end of the spring seat (11) is abutted against a spring (10), the spring (10) runs in the cavity rail (7), and the other end of the spring (10) is abutted against a spring wire (9); the handle (4) is L-shaped and moves horizontally in the cavity rail (7) to drive the spring seat (11) to move forwards and backwards.
2. A calliper type skin tissue fluid collection apparatus according to claim 1, wherein the spring seat (11) is held from the roller (1) before and is supported by the spring (10), and the spring seat (11) is always in the cavity rail (7) and is controlled by the spring force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911011881.6A CN110693535B (en) | 2019-10-23 | 2019-10-23 | Caliper type skin tissue fluid collecting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911011881.6A CN110693535B (en) | 2019-10-23 | 2019-10-23 | Caliper type skin tissue fluid collecting device |
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| Publication Number | Publication Date |
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| CN110693535A CN110693535A (en) | 2020-01-17 |
| CN110693535B true CN110693535B (en) | 2024-08-27 |
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| CN201911011881.6A Active CN110693535B (en) | 2019-10-23 | 2019-10-23 | Caliper type skin tissue fluid collecting device |
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| CN113349835B (en) * | 2021-07-15 | 2022-08-30 | 鄂东医疗集团市中心医院 | Skin surface tissue cutting sampler for dermatology |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211985498U (en) * | 2019-10-23 | 2020-11-24 | 浙江省皮肤病防治研究所 | Tape-clamping type pulling device for collecting skin tissue fluid |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6332871B1 (en) * | 1996-05-17 | 2001-12-25 | Amira Medical | Blood and interstitial fluid sampling device |
| CA2319388C (en) * | 1998-02-17 | 2007-12-04 | Abbott Laboratories | Interstitial fluid collection and monitoring device |
| CN105266852B (en) * | 2015-11-24 | 2017-12-01 | 贾爱娟 | A kind of medical inspection device |
| CN107361797A (en) * | 2017-08-11 | 2017-11-21 | 浙江省皮肤病防治研究所 | A kind of leper's tissue fluid gathers apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN211985498U (en) * | 2019-10-23 | 2020-11-24 | 浙江省皮肤病防治研究所 | Tape-clamping type pulling device for collecting skin tissue fluid |
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