CN115824514A - Medical instrument gas tightness testing arrangement - Google Patents
Medical instrument gas tightness testing arrangement Download PDFInfo
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- CN115824514A CN115824514A CN202310112850.XA CN202310112850A CN115824514A CN 115824514 A CN115824514 A CN 115824514A CN 202310112850 A CN202310112850 A CN 202310112850A CN 115824514 A CN115824514 A CN 115824514A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The invention discloses a device for testing the air tightness of a medical instrument. A hollow rotating shaft is rotatably arranged above the water tank, and two ends of the hollow rotating shaft are respectively provided with a clamping tool; the clamping tool comprises a hollow rotary table fixedly sleeved on the hollow rotary shaft, a plurality of U-shaped supports are uniformly distributed and fixed on the peripheral surface of the hollow rotary table, and the U-shaped supports are provided with separated joint assemblies; the joint assembly comprises a first threaded pipe, a second threaded pipe and a third threaded pipe which are connected in sequence; the end part of the third threaded pipe is connected with a pressing sleeve through threads, and an elastic expansion sleeve is arranged between the end part of the third threaded pipe and the pressing sleeve; an outer sleeve is arranged on the outer cover of the third threaded pipe, and an elastic gasket opposite to the elastic expansion sleeve is fixed on the inner wall of the outer sleeve. The hose clamping device integrates the clamping structure and the air source connecting structure, so that the clamping efficiency of the hose is greatly improved; when the hose of bottom is detecting the experiment, the clamping frock of top begins the new hose of clamping, rotates in proper order and changes, has improved detection experiment efficiency greatly.
Description
Technical Field
The invention relates to the technical field of medical equipment production, in particular to a device for testing the air tightness of medical instruments.
Background
The surgical instruments refer to medical instruments used in clinical operations, and besides conventional surgical instruments, there are some specialized instruments. Tube components are often used in surgical instruments to deliver gases and liquids or to achieve a sealing effect. The air tightness test is an indispensable procedure in the production of medical tube parts, and avoids the adverse effects of gas and liquid leakage on patients and doctors caused by the air tightness problem of pipelines.
The Chinese patent discloses an air tightness detection device (CN 217930716U) aiming at a surgical instrument hose, which comprises a detection water tank, supporting plates are symmetrically and fixedly installed at the lower end of the detection water tank, cushion blocks are symmetrically and fixedly installed at the upper end of the detection water tank, vertical plates are symmetrically and fixedly installed at the upper end of the detection water tank, a lifting mechanism comprises fixed blocks, the fixed blocks are fixedly connected with a telescopic rod, dovetail grooves are formed in the lower end of the fixed blocks, connecting blocks are symmetrically and fixedly installed at the lower end of the fixed blocks, yan Weikuai is symmetrically and movably installed inside the dovetail grooves, connecting strips are fixedly installed at the lower ends of two Yan Weikuai respectively, arc-shaped blocks are fixedly installed at the opposite ends of the two connecting strips respectively, rubber pads are fixedly installed at the opposite ends of the two sets of arc-shaped blocks respectively, a hose is movably installed between the two sets of rubber pads, joints are symmetrically and fixedly installed on the surface of the hose, so that the air tightness detection device can detect the air tightness of the hose when the device is used, and the detection result is visual.
The prior art has the following defects: the clamping efficiency is low, the two connecting strips are driven to be opened and closed by rotating the rotary column, so that the hose joints at two ends are clamped or loosened, the operation is inconvenient, the sealing of the hose joints cannot be realized, the interior of the hose is easily polluted during detection, and the subsequent use is not facilitated; after the hose is clamped, the inflating device is required to be connected with the hose connector, so that the operation steps of equipment are further increased; only one hose detection experiment can be completed each time, and then a new hose needs to be clamped again, so that the detection process is not smooth enough, and the efficiency is low.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a device for testing the air tightness of a medical instrument. The air tightness testing device integrates the clamping and the inflating device, and the clamping of a new hose is completed while a hose detection experiment is carried out, so that the hose detection efficiency is improved.
The invention adopts the following technical scheme: a device for testing the air tightness of medical instruments comprises a water tank, wherein a hollow rotating shaft is rotatably arranged above the water tank, two ends of the hollow rotating shaft are connected with an air source through rotating joints, and one end of the hollow rotating shaft is connected with a power device; two ends of the hollow rotating shaft are respectively provided with a clamping tool; the clamping tool comprises a hollow rotary table, the axis of the hollow rotary table is fixedly sleeved on a hollow rotary shaft, and the hollow rotary shaft is provided with an air vent communicated to the inner cavity of the hollow rotary table; a plurality of U-shaped supports are uniformly distributed and fixed on the peripheral surface of the hollow rotary table, and separated joint assemblies are mounted on the U-shaped supports; the joint assembly comprises a first threaded pipe, a second threaded pipe, and a third threaded pipe; the first threaded pipe penetrates through the U-shaped bracket and the hollow rotary table, the inner end of the first threaded pipe is communicated with the inner cavity of the hollow rotary table, and a three-way electromagnetic valve is arranged in the first threaded pipe; the third threaded pipe penetrates through one end, far away from the hollow rotary table, of the U-shaped bracket; the second threaded pipe is connected between the first threaded pipe and the third threaded pipe; the end part of the third threaded pipe is connected with a pressing sleeve through threads, and an elastic expansion sleeve is arranged between the end part of the third threaded pipe and the pressing sleeve; an outer sleeve is arranged outside the third threaded pipe in a covering mode, and an elastic gasket opposite to the elastic expansion sleeve is fixed on the inner wall of the outer sleeve.
It further comprises the following steps: two ends of the hollow rotating shaft are respectively connected with a support plate through bearings, and the support plates are fixed on the water tank through bolts; the power device comprises a motor, and the motor is connected with the hollow rotating shaft through a chain wheel and a transmission chain.
The side surface of the hollow turntable is fixedly provided with detection blocks which correspond to the U-shaped supports one by one; and a mounting plate is fixed on the support plate, and a position sensor opposite to the detection block at the highest position is fixed on the mounting plate.
The hollow turntable comprises a cylinder body, and the peripheral surface of the cylinder body is of a regular hexagon structure; two sides of the cylinder are connected with circular seal plates through bolts; the center of the sealing plate is provided with a hole, and the center hole of the sealing plate is sleeved and fixed on the hollow rotating shaft.
And the middle part of the hollow rotating shaft is provided with a stop valve.
The first threaded pipe and the third threaded pipe are provided with external threads, the second threaded pipe is provided with internal threads, and two ends of the second threaded pipe are fixed with the first threaded pipe and the third threaded pipe through threaded connection.
The two ends of the elastic expansion sleeve are provided with convex snap rings, and the inner wall of the elastic expansion sleeve is provided with an arc-shaped groove; the end part of the third threaded pipe is provided with an inner spigot matched with the snap ring of the elastic expansion sleeve; the pressing sleeve is arranged in the elastic expansion sleeve in a penetrating mode, the inner end of the pressing sleeve is fixedly connected with the third threaded pipe through threads, the middle of the pressing sleeve is provided with a through groove opposite to the arc-shaped groove of the elastic expansion sleeve, and the outer end of the pressing sleeve is provided with an inner spigot matched with the clamping ring of the elastic expansion sleeve.
The outer end of the pressing sleeve is provided with an inner hexagonal counter bore.
The end part of the outer sleeve is provided with an inner edge extending inwards, and the inner edge is sleeved on the third threaded pipe; the third threaded pipe has a shoulder thereon that bears against the inner rim.
The invention has the beneficial effects that: the hose connector is sleeved between the outer sleeve and the pressing sleeve, after the three-way electromagnetic valve is communicated with an air source, the elastic expansion sleeve is pushed by air pressure to clamp the hose connector, and the clamping structure and the air source connecting structure are integrated into a whole, so that the clamping efficiency of the hose is greatly improved; when the hose at the bottom is in a detection experiment, the clamping tool at the top starts to clamp a new hose, and the new hose is sequentially rotated and replaced, so that the detection experiment efficiency is greatly improved; the joint assembly adopts a separated threaded connection structure, is convenient to replace, and the clamping tools at two ends of the hollow rotating shaft can work independently, can adapt to different double-head and single-head hoses, and has wide detection and adaptation product range.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of an air tightness testing device for medical instruments according to the present invention.
Fig. 2 is an enlarged view of a point a in fig. 1.
FIG. 3 is a left side view of the air tightness testing device for medical devices of the present invention.
Fig. 4 is an assembly view of the air tightness testing device for medical instruments of the present invention in operation.
Fig. 5 is an enlarged view of fig. 4 at B.
Fig. 6 is an exploded view of the components of fig. 5.
Description of the reference numerals: 1. a water tank; 2. a hollow rotating shaft; 201. a vent hole; 3. a hollow turntable; 301. a cylinder body; 302. closing the plate; 4. a rotary joint; 5. a U-shaped bracket; 6. a first threaded pipe; 7. a second threaded pipe; 8. a third threaded pipe; 801. a shoulder; 9. pressing a sleeve; 901. a through groove; 10. an elastic expansion sleeve; 1001. a snap ring; 1002. an arc-shaped slot; 11. an outer sleeve; 1101. an inner edge; 12. an elastic washer; 13. a support plate; 14. a motor; 15. a sprocket; 16. a drive chain; 17. a three-way electromagnetic valve; 18. a stop valve; 19. a detection block; 20. mounting a plate; 21. a position sensor; 22. a hose.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, in the air tightness testing device for the medical instrument, two ends of a hollow rotating shaft 2 are respectively and rotatably mounted on a support plate 13 through bearings, and the support plate 13 is fixed on a water tank 1 through bolts. The two ends of the hollow rotating shaft 2 are connected with an air source through a rotary joint 4, and the middle part of the hollow rotating shaft 2 is provided with a stop valve 18. One end of the hollow rotating shaft 2 is fixed with a chain wheel and chain wheel 15, and the chain wheel 15 is connected with a motor 14 through a transmission chain 16. The motor 14 is used for controlling the hollow rotating shaft 2 to move intermittently, and gas with certain pressure is introduced into the hollow rotating shaft 2 through a gas source.
Referring to fig. 1 and 2, two ends of the hollow rotating shaft 2 are respectively provided with a clamping tool, and the clamping tools at the two ends are symmetrically arranged. The clamping tool comprises a hollow rotary table 3, and the hollow rotary table 3 comprises a cylinder 301. The peripheral surface of the cylinder 301 is in a regular hexagon structure, two sides of the cylinder 301 are connected with circular sealing plates 302 through bolts, and a hollow inner cavity is formed between the cylinder 301 and the sealing plates 302. The center of the closing plate 302 is provided with a hole, and the center hole of the closing plate 302 is sleeved and fixed on the hollow rotating shaft 2. The hollow rotating shaft 2 is provided with a vent hole 201 communicated with the inner cavity of the hollow rotating disc 3.
A U-shaped bracket 5,U is respectively fixed on 6 planes on the circumference of the hollow turntable 3, and a separated joint component is arranged on the bracket 5. The joint assembly comprises a first threaded pipe 6, a second threaded pipe 7 and a third threaded pipe 8. The first screwed pipe 6 is provided with an external thread, the first screwed pipe 6 is connected with the inner end of the U-shaped bracket 5 and the hollow turntable 3 in a penetrating way through a thread, and the inner end of the first screwed pipe 6 is communicated with the inner cavity of the hollow turntable 3. The third screwed pipe 8 is provided with external threads, and the third screwed pipe 8 is connected through threads and penetrates through the outer end of the U-shaped support 5. The second threaded pipe 7 is provided with internal threads, and two ends of the second threaded pipe 7 are fixed with the first threaded pipe 6 and the third threaded pipe 8 through threaded connection. A three-way electromagnetic valve 17 is arranged in the first threaded pipe 6, and the three-way electromagnetic valve 17 can be used for communicating the second threaded pipe 7 with the inner cavity of the hollow rotary disc 3 or communicating the second threaded pipe 7 with the outside.
As shown in fig. 4 to 6, an internal thread is formed at the end of the third threaded pipe 8, an external thread is formed at the inner end of the pressing sleeve 9, and the inner end of the pressing sleeve 9 is fixed in the third threaded pipe 8 through threaded connection. The outer end of the pressing sleeve 9 is provided with an inner hexagonal counter bore, so that the pressing sleeve 9 can be screwed down conveniently. The elastic expansion sleeve 10 is sleeved on the pressing sleeve 9, and two ends of the elastic expansion sleeve 10 are provided with convex snap rings 1001. The end part of the third threaded pipe 8 is provided with an inner spigot matched with the snap ring 1001 of the elastic expansion sleeve 10, the outer end of the pressing sleeve 9 is also provided with an inner spigot matched with the snap ring 1001 of the elastic expansion sleeve 10, the elastic expansion sleeve 10 is positioned between the end part of the third threaded pipe 8 and the outer end of the pressing sleeve 9 through the pressing sleeve 9, and sealing is realized through the matching of the inner spigot and the snap ring 1001. The inner wall of the elastic expansion sleeve 10 is provided with an arc-shaped groove 1002, the middle part of the pressing sleeve 9 is provided with a through groove 901 opposite to the arc-shaped groove 1002 of the elastic expansion sleeve 10, and when the pressing sleeve 9 is filled with high-pressure gas, the elastic expansion sleeve 10 expands outwards to a certain degree to compress the hose 22 joint on the outer side, and meanwhile sealing and positioning are achieved.
The outer sleeve 11 is covered outside the elastic expansion sleeve 10, the end of the outer sleeve 11 is provided with an inner edge 1101 extending inwards, and the inner edge 1101 is sleeved on the third threaded pipe 8. The third threaded pipe 8 has a shoulder 801 that presses against an inner rim 1101, and the inner wall of the outer sleeve 11 is fixed with an elastic washer 12 opposite the elastic expansion sleeve 10 for preliminary positioning of the hose 22. The third threaded pipe 8 and the outer sleeve 11 adopt a mounting structure of threaded connection and step positioning, and are convenient to replace.
As shown in fig. 1, a mounting plate 20 is fixed to one of the brackets 13. The side of the hollow rotary disc 3 close to the close plate 302 of the mounting plate 20 is fixed with 6 detection blocks 19, and the detection blocks 19 correspond to the 6U-shaped brackets 5 on the peripheral surface one by one. A position sensor 21 is fixed on the mounting plate 20 and is opposite to the detection block 19 at the highest position, and the positions of the hollow rotary disc 3 and each U-shaped bracket 5 are determined by the position sensor 21.
The working principle is as follows:
referring to fig. 1 to 6, gas with a certain pressure is introduced into the hollow rotating shaft 2 through a gas source; joints at two ends of the hose 22 are respectively connected with joint components at the uppermost positions of the clamping tools at two sides, and at the moment, the three-way electromagnetic valve 17 in the joint component at the uppermost position is communicated with the second threaded pipe 7 and the outside; then, inserting a joint of a hose 22 between the outer sleeve 11 and the elastic expansion sleeve 10, connecting the three-way electromagnetic valve 17 with the second threaded pipe 7 and the inner cavity of the hollow turntable 3, and starting high-pressure gas to enter the hose 22, wherein if obvious gas leakage exists, the three-way electromagnetic valve 17 needs to be closed in time to replace the hose 22;
when the pressure sleeve 9 is filled with high-pressure gas, the elastic expansion sleeve 10 expands outwards to a certain extent so as to press the joint of the hose 22 at the outer side tightly and realize sealing and positioning; after the installation is finished, the hollow rotating shaft 2 drives the hollow rotating disc 3 to rotate for one station, and the installation of the next hose 22 is started; the hose 22 located at the lowermost side is sunk into the water tank, and the airtightness of the hose 22 can be visually judged by whether or not there is any air bubble.
According to the embodiment, the hose connector is clamped by pushing the elastic expansion sleeve by air pressure, and the clamping structure and the air source connecting structure are integrated, so that the clamping efficiency of the hose is greatly improved; when the hose of bottom is detecting the experiment, the clamping frock of top begins the new hose of clamping, rotates in proper order and changes, has improved detection experiment efficiency greatly.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. A device for testing the air tightness of medical instruments comprises a water tank (1),
the method is characterized in that:
a hollow rotating shaft (2) is rotatably arranged above the water tank (1), two ends of the hollow rotating shaft (2) are connected with an air source through a rotating joint (4), and one end of the hollow rotating shaft (2) is connected with a power device; two ends of the hollow rotating shaft (2) are respectively provided with a clamping tool;
the clamping tool comprises a hollow rotary table (3), the axis of the hollow rotary table (3) is fixedly sleeved on the hollow rotary shaft (2), and the hollow rotary shaft (2) is provided with a vent hole (201) communicated to the inner cavity of the hollow rotary table (3); a plurality of U-shaped supports (5) are uniformly distributed and fixed on the peripheral surface of the hollow turntable (3), and the U-shaped supports (5) are provided with separated joint assemblies;
the joint assembly comprises a first threaded pipe (6), a second threaded pipe (7) and a third threaded pipe (8); the first threaded pipe (6) penetrates through the U-shaped bracket (5) and the hollow rotary table (3), the inner end of the first threaded pipe (6) is communicated with the inner cavity of the hollow rotary table (3), and a three-way electromagnetic valve (17) is installed in the first threaded pipe (6); the third threaded pipe (8) penetrates through one end, far away from the hollow rotary table (3), of the U-shaped support (5); the second threaded pipe (7) is connected between the first threaded pipe (6) and the third threaded pipe (8);
the end part of the third threaded pipe (8) is connected with a pressing sleeve (9) through threads, and an elastic expansion sleeve (10) is arranged between the end part of the third threaded pipe (8) and the pressing sleeve (9); an outer sleeve (11) is arranged outside the third threaded pipe (8), and an elastic gasket (12) opposite to the elastic expansion sleeve (10) is fixed on the inner wall of the outer sleeve (11).
2. The device for testing the air tightness of the medical apparatus according to claim 1, wherein: two ends of the hollow rotating shaft (2) are respectively connected with a support plate (13) through bearings, and the support plates (13) are fixed on the water tank (1) through bolts; the power device comprises a motor (14), and the motor (14) is connected with the hollow rotating shaft (2) through a chain wheel (15) and a transmission chain (16).
3. The device for testing the air tightness of the medical apparatus according to claim 2, wherein: the side surface of the hollow turntable (3) is fixed with detection blocks (19) which correspond to the U-shaped brackets (5) one by one; and a mounting plate (20) is fixed on the support plate (13), and a position sensor (21) opposite to the detection block (19) at the highest position is fixed on the mounting plate (20).
4. The device for testing the air tightness of the medical apparatus according to claim 1, wherein: the hollow turntable (3) comprises a cylinder body (301), and the peripheral surface of the cylinder body (301) is of a regular hexagon structure; two sides of the cylinder (301) are connected with circular sealing plates (302) through bolts; the center of the sealing plate (302) is provided with a hole, and the center hole of the sealing plate (302) is sleeved and fixed on the hollow rotating shaft (2).
5. The device for testing the air tightness of the medical apparatus according to claim 1, wherein: and a stop valve (18) is arranged in the middle of the hollow rotating shaft (2).
6. The medical instrument airtightness testing device according to claim 1, wherein: the first threaded pipe (6) and the third threaded pipe (8) are provided with external threads, the second threaded pipe (7) is provided with internal threads, and two ends of the second threaded pipe (7) are fixed with the first threaded pipe (6) and the third threaded pipe (8) through threaded connection.
7. The medical instrument airtightness testing device according to claim 1, wherein: two ends of the elastic expansion sleeve (10) are provided with convex snap rings (1001), and the inner wall of the elastic expansion sleeve (10) is provided with an arc-shaped groove (1002); the end part of the third threaded pipe (8) is provided with an inner spigot matched with a clamping ring (1001) of the elastic expansion sleeve (10); the pressing sleeve (9) is arranged in the elastic expansion sleeve (10) in a penetrating mode, the inner end of the pressing sleeve (9) is fixedly connected with the third threaded pipe (8) through threads, the middle of the pressing sleeve (9) is provided with a through groove (901) opposite to an arc-shaped groove (1002) of the elastic expansion sleeve (10), and the outer end of the pressing sleeve (9) is provided with an inner spigot matched with a clamping ring (1001) of the elastic expansion sleeve (10).
8. The device for testing the air tightness of the medical apparatus according to claim 7, wherein: the outer end of the pressing sleeve (9) is provided with an inner hexagonal counter bore.
9. The device for testing the air tightness of the medical apparatus according to claim 1, wherein: the end part of the outer sleeve (11) is provided with an inner edge (1101) extending inwards, and the inner edge (1101) is sleeved on the third threaded pipe (8); the third threaded pipe (8) has a shoulder (801) that presses against an inner rim (1101).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310112850.XA CN115824514B (en) | 2023-02-15 | 2023-02-15 | Medical instrument gas tightness testing arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310112850.XA CN115824514B (en) | 2023-02-15 | 2023-02-15 | Medical instrument gas tightness testing arrangement |
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| CN115824514A true CN115824514A (en) | 2023-03-21 |
| CN115824514B CN115824514B (en) | 2023-05-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117091761A (en) * | 2023-10-19 | 2023-11-21 | 欧莱特医疗科技(无锡)股份有限公司 | Special airtight check out test set of medical nasal catheter |
| CN118032234A (en) * | 2024-04-11 | 2024-05-14 | 佳康医用器材（青岛）有限公司 | Leakage detection device for catheter assembly of indwelling needle |
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| CN214040524U (en) * | 2020-12-21 | 2021-08-24 | 福州加扬机械有限公司 | Water type air tightness detection device of automobile air conditioner piping |
| CN216201582U (en) * | 2021-10-20 | 2022-04-05 | 广东电安新材料科技有限公司 | Pipe stopper |
| CN217687712U (en) * | 2022-05-18 | 2022-10-28 | 晋江市晓星钢铁制品有限公司 | Metal air duct air leakage detection device |
| CN217930716U (en) * | 2022-07-19 | 2022-11-29 | 泰安市泰山区人民医院 | Air tightness detection device for surgical instrument hose |
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| CN117091761A (en) * | 2023-10-19 | 2023-11-21 | 欧莱特医疗科技(无锡)股份有限公司 | Special airtight check out test set of medical nasal catheter |
| CN117091761B (en) * | 2023-10-19 | 2023-12-26 | 欧莱特医疗科技(无锡)股份有限公司 | Special airtight check out test set of medical nasal catheter |
| CN118032234A (en) * | 2024-04-11 | 2024-05-14 | 佳康医用器材（青岛）有限公司 | Leakage detection device for catheter assembly of indwelling needle |
| CN118032234B (en) * | 2024-04-11 | 2024-06-11 | 佳康医用器材（青岛）有限公司 | Leakage detection device for catheter assembly of indwelling needle |
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