CN112295088B - Continuous slow-release administration analgesic drainage tube with controller - Google Patents
Continuous slow-release administration analgesic drainage tube with controller Download PDFInfo
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- CN112295088B CN112295088B CN202011188010.4A CN202011188010A CN112295088B CN 112295088 B CN112295088 B CN 112295088B CN 202011188010 A CN202011188010 A CN 202011188010A CN 112295088 B CN112295088 B CN 112295088B
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- 230000000202 analgesic effect Effects 0.000 title claims abstract description 19
- 239000003814 drug Substances 0.000 claims abstract description 90
- 229940079593 drug Drugs 0.000 claims abstract description 46
- 238000002347 injection Methods 0.000 claims abstract description 25
- 239000007924 injection Substances 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000001647 drug administration Methods 0.000 claims abstract description 5
- 239000012466 permeate Substances 0.000 claims abstract 2
- 238000013268 sustained release Methods 0.000 claims description 24
- 239000012730 sustained-release form Substances 0.000 claims description 24
- 238000012377 drug delivery Methods 0.000 claims description 7
- 230000002209 hydrophobic effect Effects 0.000 claims description 6
- 239000002114 nanocomposite Substances 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000001802 infusion Methods 0.000 claims description 2
- 230000036407 pain Effects 0.000 abstract description 12
- 210000004369 blood Anatomy 0.000 abstract description 5
- 239000008280 blood Substances 0.000 abstract description 5
- 210000000416 exudates and transudate Anatomy 0.000 abstract description 5
- 230000007794 irritation Effects 0.000 abstract description 5
- 229940035676 analgesics Drugs 0.000 abstract description 3
- 239000000730 antalgic agent Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 4
- 238000002690 local anesthesia Methods 0.000 description 4
- 239000003589 local anesthetic agent Substances 0.000 description 4
- 239000005060 rubber Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 230000004060 metabolic process Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000002695 general anesthesia Methods 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0017—Catheters; Hollow probes specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
- A61M25/007—Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
- A61M31/002—Devices for releasing a drug at a continuous and controlled rate for a prolonged period of time
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Hematology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Epidemiology (AREA)
- Urology & Nephrology (AREA)
- Chemical & Material Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Medicinal Chemistry (AREA)
- External Artificial Organs (AREA)
Abstract
The invention provides a continuous slow-release drug administration analgesic drainage tube with a controller, which comprises a drainage tube body, a slow-release tube, a drug storage bag and the controller, wherein the slow-release tube is connected with the drainage tube body into a whole and extends along the extending direction of the drainage tube body, the drug storage bag is positioned in the controller, and the controller is configured to adjust the drug storage bag to force out the liquid medicine in the drug storage bag at a preset drug injection pressure or drug injection speed, so as to enter the slow-release tube and permeate out of the slow-release tube through the tube wall of the slow-release tube. The continuous slow-release administration analgesic drainage tube with the controller can continuously and slowly release analgesic drugs to the incision part when exudates and blood are drained at the incision part, so as to relieve incision pain and drainage tube irritation pain of patients.
Description
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to a continuous slow-release drug administration analgesic drainage tube with a controller.
Background
For many surgical patients, a drainage tube is needed to be placed on an incision to drain exudates and blood, local anesthetic is often injected into the incision for relieving the incision pain and the irritation pain of the drainage tube of the patient, but because the local anesthetic is only injected once, the patient feels severe pain after the metabolism of the local anesthetic is finished, the drainage tube is an outward drainage device, the pain can not be relieved by injecting the local anesthetic into the cavity of the drainage tube, so that the analgesic can only be applied in a whole body, and the defects of poor effect, great side effect and the like exist in the whole body of the medicine.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to provide the continuous slow-release administration analgesic drainage tube with the controller, which can continuously and slowly release analgesic drugs to the incision part while draining exudates and blood at the incision part so as to relieve incision pain and drainage tube irritation pain of patients.
In order to solve the problems, the invention provides a continuous sustained-release drug administration analgesic drainage tube with a controller, which comprises a drainage tube body, a sustained-release tube, a drug storage bag and the controller, wherein the sustained-release tube is connected with the drainage tube body into a whole and extends along the extending direction of the drainage tube body, the drug storage bag is positioned in the controller, and the controller is configured to adjust the drug storage bag to force out the drug liquid in the drug storage bag at a preset drug injection pressure or drug injection speed, and then enters the sustained-release tube and seeps out to the outside of the drug storage bag through the tube wall of the sustained-release tube.
Preferably, the slow release tube is made of medical hydrophilic and hydrophobic nano composite materials.
Preferably, the medical hydrophilic and hydrophobic nanocomposite comprises one of fluorine-containing polymer and polyurethane.
Preferably, the medicine storage bag is communicated with the slow release pipe through a medicine injection pipe.
Preferably, the drug injection tube is a flexible tube.
Preferably, the drug injection tube and the slow release tube are connected into a whole; and/or the medicine injection tube and the drainage tube body are held together by adopting a hoop.
Preferably, a plurality of drainage holes are formed in the pipe wall of the drainage pipe body, and the drainage holes are arranged at intervals along the extending direction of the drainage pipe body; or, one end of the drainage tube body positioned in the target indwelling tissue is an open end; and/or one end of the slow release tube positioned in the target indwelling tissue is a closed end.
Preferably, a display screen is arranged on the controller; and/or the controller is provided with an adjusting button.
Preferably, the controller is also internally provided with an induction element, the induction element is used for detecting the inner cavity pressure of the medicine storage bag, and the obtained inner cavity pressure signal is transmitted and displayed on the display after being processed by a core operation element in the controller; and/or, the obtained inner cavity pressure signal is calculated by a core calculation element in the controller to obtain the residual medicine quantity in the medicine storage bag, and the obtained residual medicine quantity is transmitted and displayed on the display.
Preferably, the controller further comprises an alarm device, and the alarm device is used for sending an alarm signal when the inner cavity pressure of the medicine storage bag acquired by the sensing element exceeds a preset interval.
The continuous slow-release drug administration analgesic drainage tube with the controller provided by the invention can realize the drainage of exudates and blood at the incision and simultaneously realize the continuous slow-release administration of analgesic drugs to the incision, thereby effectively relieving the incision pain and drainage tube irritation pain of patients after the local anesthesia drugs are metabolized at the incision position of the patients in the prior art and effectively avoiding the defects caused by adopting general anesthesia after the local anesthesia drugs are metabolized in the prior art; meanwhile, an adjusting button is arranged on the controller and used for adjusting the administration speed or the administration pressure, such as increasing the administration speed or the administration pressure or decreasing the administration speed or the administration pressure.
Drawings
Fig. 1 is a schematic structural view of a continuous sustained-release administration analgesic drainage tube with a controller according to an embodiment of the present invention.
The reference numerals are expressed as:
1. a drainage tube body; 11. drainage holes; 2. a slow release tube; 3. a drug storage bag; 4. a drug injection tube; 41. a hoop; 5. a controller; 51. a display screen; 52. an adjusting button.
Detailed Description
Referring to fig. 1, according to an embodiment of the present invention, there is provided a continuous sustained release administration analgesic drainage tube having a controller, comprising a drainage tube body 1, a sustained release tube 2, a drug storage bag 3, and a controller 5, wherein the sustained release tube 2 is integrally connected with the drainage tube body 1 and the sustained release tube 2 extends along the extending direction of the drainage tube body 1, the drug storage bag 3 is located in the controller 5, and the controller 5 is configured to adjust the drug storage bag 3 to force the drug solution in the drug storage bag 3 out at a preset drug injection pressure or drug injection speed, and then into the sustained release tube 2 and exude to the outside thereof through the tube wall of the sustained release tube 2. According to the technical scheme, through the combined action of the slow release pipe 2 and the medicine storage bag 3, analgesic medicine can be continuously and slowly released to the incision part while exudates and blood at the incision part are drained, incision pain and drainage tube irritation pain of patients after local anesthesia medicine metabolism at the incision position of the patients in the prior art are effectively relieved, and the defect caused by general anesthesia after local anesthesia medicine metabolism in the prior art is effectively avoided; in addition, in this technical scheme, the controller 5 is used to regulate and control the injection pressure or injection speed of the liquid medicine in the medicine storage bag 3, so as to accurately control the dosage. It can be understood that the medicine storage bag 3 is provided with a medicine injection port so as to realize the medicine liquid supplement of the medicine storage bag 3.
Preferably, the medicine storage bag 3 is made of elastic material, specifically, for example, one of silica gel, rubber, latex or nylon, wherein the wall thickness of the silica gel is 0.2-0.4mm, the shore softness is 30, and the medicine storage bag can be made by injection molding or bonding process, has good elasticity, stable product performance and transparent color, and is beneficial for operators to observe the condition of medicine liquid in the bag; the wall thickness of the formable rubber is 0.5-0.8mm, the Shore softness is 40, the formable rubber can be manufactured by adopting an injection molding or bonding process, the formable rubber has general elasticity, rough appearance and high hardness, is white, and can not observe the condition of liquid medicine in the bag; the latex can be formed with the wall thickness of 0.2-1mm and the Shore softness of 20-30, can be manufactured by adopting an injection molding or bonding process, has moderate elasticity, is not fine and smooth in appearance, is semitransparent, and has poor shaping effect; the nylon formable wall thickness is 0.2-0.6mm, can be manufactured by adopting an adhesion process, has poor elasticity and is semitransparent, so that the medicine storage bag 3 is preferably manufactured by adopting silica gel.
As a specific embodiment, preferably, the controller 5 is provided with a display screen 51 for displaying the current administration speed or administration pressure, so as to facilitate the medical staff to clearly administer the medicine during the infusion process; meanwhile, the controller 5 is provided with an adjusting knob 52, and the adjusting knob 52 is used for adjusting the administration speed or the administration pressure, for example, increasing the administration speed or the administration pressure or decreasing the administration speed or the administration pressure. Further, an induction element is further disposed in the controller 5, and is configured to detect the pressure of the inner cavity of the drug storage bag 3, and the obtained pressure signal of the inner cavity is processed by a core operation element in the controller 3, and then transmitted and displayed on the display 51; and/or, the obtained inner cavity pressure signal is calculated by a core calculation element in the controller 3 to obtain the residual medicine in the medicine storage bag 3, and the obtained residual medicine is transmitted and displayed on the display 51.
As a better embodiment, the controller 5 further includes an alarm device, configured to send an alarm signal when the cavity pressure of the drug storage bag 3 obtained by the sensing element exceeds a preset interval (i.e. when the cavity pressure is lower than a certain low pressure preset threshold or higher than a certain high pressure preset threshold), where the alarm signal includes a manner of flashing an indicator light, a beeping sound or a text prompt, so as to prompt a medical staff to adjust the drug delivery pressure in time.
The sustained-release tube 2 is made of medical hydrophilic and hydrophobic nano composite materials, and concretely, the medical hydrophilic and hydrophobic nano composite materials can comprise one of fluorine-containing high polymer and polyurethane, and the aperture of a permeation hole on the sustained-release membrane is 1-100nm.
Preferably, the medicine storage bag 3 is communicated with the slow release tube 2 through a medicine injection tube 4, and most preferably, the medicine injection tube 4 is a flexible tube, which can facilitate the selection of the medicine administration angle of medical staff when medicine is administrated into the medicine storage bag 3.
Further, the injection tube 4 is integrally connected with the slow release tube 2, so as to prevent the liquid medicine from leaking at the joint of the injection tube and the slow release tube; and/or, the drug injection tube 4 and the drainage tube body 1 are integrated by adopting the anchor ear 41, so that the drug storage bag 3 can be removed when slow release drug delivery is not needed, and the drug injection tube 4 and the drainage tube body 1 are reliably connected through the anchor ear 41 when slow release drug delivery is needed.
Be equipped with a plurality of drainage holes 11 on the pipe wall of drainage tube body 1, a plurality of drainage holes 11 are followed the extending direction interval setting of drainage tube body 1, in order to promote drainage tube body 1's drainage ability, the one end that drainage tube body 1 is in the target and detains the tissue is the open end, and the one end that is outside the target is detained the tissue then is used for connecting negative pressure suction device. And it can be understood that the end of the slow release tube 2 positioned in the target indwelling tissue is a closed end, so as to ensure the slow release exudation effect of the liquid medicine in the slow release tube.
As a more preferable embodiment, the outer circumference of the slow release tube 2 may be optionally sleeved with a slow release administration positioning film sleeve (not shown in the figure), the slow release administration positioning film sleeve is provided with a through hole, the slow release administration positioning film sleeve outside the through hole can prevent the liquid medicine in the slow release tube 2 from exuding, and the through hole can allow the liquid medicine in the slow release tube 2 to exude, so that the liquid medicine exuding in the slow release tube 2 can be positioned, so that the slow release tube is suitable for the situation that some punctiform lesions need continuous administration.
It will be readily appreciated by those skilled in the art that the above advantageous ways can be freely combined and superimposed without conflict.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention. The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (9)
1. A continuous slow-release drug administration analgesic drainage tube with a controller, which is characterized by comprising a drainage tube body (1), a slow-release tube (2), a drug storage bag (3) and a controller (5), wherein the slow-release tube (2) is connected with the drainage tube body (1) into a whole, the slow-release tube (2) extends along the extending direction of the drainage tube body (1), the drug storage bag (3) is positioned in the controller (5), and the controller (5) is configured to adjust the drug storage bag (3) to force out the drug liquid in the drug storage bag (3) at a preset drug injection pressure or drug injection speed, so as to enter the slow-release tube (2) and permeate out of the drug storage bag through the tube wall of the slow-release tube (2); the slow release tube (2) is made of medical hydrophilic and hydrophobic nano composite materials and is arranged in a target indwelling tissue, a slow release drug delivery positioning film sleeve is sleeved on the periphery of the slow release tube (2), and a through hole is formed in the slow release drug delivery positioning film sleeve.
2. The continuous sustained release drug delivery analgesic drainage tube with controller of claim 1 wherein said medical hydrophilic and hydrophobic nanocomposite comprises one of a fluorine-containing polymer, polyurethane.
3. The continuous sustained-release administration analgesic drainage tube with controller according to claim 1, characterized in that said drug storage bag (3) is communicated with said sustained-release tube (2) through a drug injection tube (4).
4. A continuous sustained release administration analgesic drainage tube with a controller according to claim 3 wherein said drug infusion tube (4) is a flexible tube.
5. A continuous sustained release administration analgesic drainage tube with controller according to claim 3 characterized in that said drug injection tube (4) is connected as one piece with said sustained release tube (2); and/or the medicine injection tube (4) and the drainage tube body (1) are integrated by adopting a hoop (41).
6. The continuous sustained-release administration analgesic drainage tube with controller according to claim 1, characterized in that a plurality of drainage holes (11) are arranged on the tube wall of the drainage tube body (1), and a plurality of the drainage holes (11) are arranged at intervals along the extension direction of the drainage tube body (1); or, the end of the drainage tube body (1) positioned in the target indwelling tissue is an open end, and/or the end of the slow release tube (2) positioned in the target indwelling tissue is a closed end.
7. The continuous sustained release administration analgesic drainage tube with controller of claim 1 wherein said controller (5) is provided with a display screen (51); and/or, the controller (5) is provided with an adjusting button (52).
8. The continuous sustained-release administration indwelling catheter according to claim 7, wherein an induction element is further provided in the controller (5), the induction element is used for detecting the cavity pressure of the drug storage bag (3), and the obtained cavity pressure signal is transmitted and displayed on the display (51) after being processed by a core operation element in the controller (3); and/or, the obtained inner cavity pressure signal is calculated by a core calculation element in the controller (3) to obtain the residual medicine amount in the medicine storage bag (3), and the obtained residual medicine amount is transmitted and displayed on the display (51).
9. The continuous sustained release drug delivery indwelling catheter according to claim 8, wherein said controller (5) further comprises an alarm device for giving an alarm signal when the internal cavity pressure of said drug storage bag (3) obtained by said sensing element exceeds a preset interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011188010.4A CN112295088B (en) | 2020-10-29 | 2020-10-29 | Continuous slow-release administration analgesic drainage tube with controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011188010.4A CN112295088B (en) | 2020-10-29 | 2020-10-29 | Continuous slow-release administration analgesic drainage tube with controller |
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| Publication Number | Publication Date |
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| CN112295088A CN112295088A (en) | 2021-02-02 |
| CN112295088B true CN112295088B (en) | 2023-06-06 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989003232A1 (en) * | 1987-10-09 | 1989-04-20 | Bukh Meditec A/S | A medical device for introduction into a body cavity |
| CN203090197U (en) * | 2013-02-01 | 2013-07-31 | 海盐康源医疗器械有限公司 | Silica gel urethral catheter with automatic controlled-release doser |
| CN105031800A (en) * | 2015-08-31 | 2015-11-11 | 南京医科大学第一附属医院 | Medical painless chest drainage pipe |
| CN108136157A (en) * | 2015-07-20 | 2018-06-08 | 斯卓特凯系统有限责任公司 | Cause the conduit device and method of negative pressure in patient's bladder |
| CN109464722A (en) * | 2018-11-14 | 2019-03-15 | 山东大学 | Active pressure intelligent infusion set, infusion control system and control method |
| CN208823748U (en) * | 2017-12-05 | 2019-05-07 | 江苏大学附属医院 | Drainage device with analgesia function |
| CN210009404U (en) * | 2019-04-08 | 2020-02-04 | 大理大学第一附属医院 | Improvement type glaucoma aqueous humor drainage tube |
| CN211705485U (en) * | 2019-12-26 | 2020-10-20 | 上海交通大学医学院附属第九人民医院 | Analgesia pump capable of buffering medicine feeding |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2019101907A (en) * | 2015-07-20 | 2019-04-01 | Стратака Системз Лимитед | URINARY CATHETER AND BLADDER CATHETER AND METHODS FOR CREATING A NEGATIVE PRESSURE TO INCREASE RENAL PERFUSION |
-
2020
- 2020-10-29 CN CN202011188010.4A patent/CN112295088B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989003232A1 (en) * | 1987-10-09 | 1989-04-20 | Bukh Meditec A/S | A medical device for introduction into a body cavity |
| CN203090197U (en) * | 2013-02-01 | 2013-07-31 | 海盐康源医疗器械有限公司 | Silica gel urethral catheter with automatic controlled-release doser |
| CN108136157A (en) * | 2015-07-20 | 2018-06-08 | 斯卓特凯系统有限责任公司 | Cause the conduit device and method of negative pressure in patient's bladder |
| CN105031800A (en) * | 2015-08-31 | 2015-11-11 | 南京医科大学第一附属医院 | Medical painless chest drainage pipe |
| CN208823748U (en) * | 2017-12-05 | 2019-05-07 | 江苏大学附属医院 | Drainage device with analgesia function |
| CN109464722A (en) * | 2018-11-14 | 2019-03-15 | 山东大学 | Active pressure intelligent infusion set, infusion control system and control method |
| CN210009404U (en) * | 2019-04-08 | 2020-02-04 | 大理大学第一附属医院 | Improvement type glaucoma aqueous humor drainage tube |
| CN211705485U (en) * | 2019-12-26 | 2020-10-20 | 上海交通大学医学院附属第九人民医院 | Analgesia pump capable of buffering medicine feeding |
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| CN112295088A (en) | 2021-02-02 |
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