CN106975142B - Diaphragm formula gasbag catheter - Google Patents
Diaphragm formula gasbag catheter Download PDFInfo
- Publication number
- CN106975142B CN106975142B CN201710156344.5A CN201710156344A CN106975142B CN 106975142 B CN106975142 B CN 106975142B CN 201710156344 A CN201710156344 A CN 201710156344A CN 106975142 B CN106975142 B CN 106975142B
- Authority
- CN
- China
- Prior art keywords
- valve
- valve core
- catheter
- air bag
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
-
- 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
- A61M25/0043—Catheters; Hollow probes characterised by structural features
-
- 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
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
-
- 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
- A61M25/10—Balloon catheters
-
- 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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0496—Urine
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Pulmonology (AREA)
- Biophysics (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Child & Adolescent Psychology (AREA)
- External Artificial Organs (AREA)
Abstract
The invention discloses a diaphragm type air bag catheter, wherein the front part of a catheter body is provided with an air bag and a urethral catheterization hole communicated with a catheter cavity, the rear part of the catheter body is provided with an inflation inlet communicated with the air bag, the tail end of the catheter body is a urination outlet, an arched elastic diaphragm is connected to the catheter body on one side of the urethral catheterization hole facing the tail end of the catheter body, a valve mechanism is arranged in the catheter cavity, and the inner wall of the elastic diaphragm is connected with a valve core of the valve mechanism to drive the valve mechanism to act so as to switch on or off the valve mechanism. When the pressure in the bladder is larger than the bearing range of the arched elastic diaphragm, the elastic diaphragm is sunken towards the direction of the tube body to drive the valve plug to act so as to lead the valve mechanism to be conducted to discharge urine, and no electronic device is adopted, so that the bladder urine drainage valve is high in reliability, low in cost, simple in structure and convenient to operate.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a diaphragm type balloon catheter.
Background
The air bag catheter is a clinical common urine drainage instrument, the front part of the catheter body is provided with a urine guide hole communicated with a tube cavity and an air bag used for preventing the front end of the catheter from being separated from a bladder, the rear part of the catheter body is provided with an inflation port communicated with the air bag, the tail end of the catheter body is a urine discharge port, and when the front part of the catheter body is inserted into the bladder to a proper position, the air bag is inflated through the inflation port to expand the air bag to realize fixation.
On a traditional balloon catheter, a urethral orifice and a urethral orifice are always in a conduction state, a little urine in a bladder is discharged, so that the bladder is in an emptying state for a long time, in bionics, the change of the internal pressure of the bladder is beneficial to keeping the function of the bladder, the change of the internal pressure of the bladder is realized in the process of urine accumulation and discharge, the bladder is in the emptying state for a long time, the stress relaxation function of detrusor muscle, internal sphincter muscle and external sphincter muscle of the bladder can be reduced, and the urine storage function and the urination reflex of the bladder can be weakened when the bladder is serious, so that the function of the bladder is gradually reduced, and finally the function of the bladder is wasted and atrophied.
At present, the air bag catheter provided with a pressure sensor, a processing module and an electric control valve is also provided, the pressure sensor is used for detecting the internal pressure of the bladder, and the processing module is used for receiving and processing detection data of the pressure sensor so as to control the opening and closing of the electric control valve, so that urine in the bladder still has an accumulation process, the bladder keeps the change of the internal pressure and maintains the function of the bladder; however, the pH value of urine fluctuates between 4.5 and 8.0, the electronic devices are corroded by large fluctuation of acidity and alkalinity, the operation of the urine is supported by a power supply, the reliability is low, the service cycle of the balloon catheter is generally one week, the urine cannot be reused, the use cost of the balloon catheter is greatly increased due to the addition of the electronic devices, the structure is complex, and the operation is inconvenient.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a diaphragm type balloon catheter, which can solve the problems of low reliability, high cost, complex structure and inconvenient operation caused by the fact that the existing balloon catheter adopts electronic devices such as a pressure sensor, a processing module, an electric control valve and the like to realize the connection and disconnection of a pipeline so as to maintain the function of a bladder.
The invention is realized by the following technical scheme:
the utility model provides a diaphragm formula gasbag catheter, its body front portion is provided with the urethral catheterization hole of gasbag and intercommunication lumen, and the body rear portion is provided with the inflation inlet of intercommunication gasbag, and the end is the mouth of urinating, is connected with arched elastic diaphragm on urethral hole one side body towards the body end, the intracavity is provided with valve mechanism, its action of valve core drive of elastic diaphragm's inner wall connection valve mechanism makes valve mechanism switch on or turn-off.
The valve mechanism is provided with at least two inlets, the two elastic membranes are symmetrically arranged on two sides of the pipe body and are respectively connected with one valve core, and the movement of each valve core opens or closes at least one inlet.
The invention has the further scheme that the number of the elastic membranes and the number of the valve mechanisms are respectively two, the tube cavity is divided into two chambers by the diaphragm, at least two urethral catheterization holes respectively communicated with the two chambers are arranged at the front part of the tube body, the two elastic membranes are respectively connected to the tube bodies corresponding to the two chambers, and the two valve mechanisms are respectively arranged in the two chambers.
In a further aspect of the invention, the two valve mechanisms are disposed in two chambers in a staggered manner.
The valve mechanism comprises a valve body and a valve core, the edge of the valve body is connected to the inner wall of the pipe cavity in a sealing mode, a valve core cavity, an inlet and an outlet which are communicated with the valve core cavity respectively are arranged on the valve body, and the valve core is arranged in the valve core cavity.
According to a further scheme of the invention, the valve core is provided with a valve core hole, and the valve core hole is overlapped or staggered with the inlet and the outlet along with the movement of the valve core, so that the on-off of the valve mechanism is realized.
According to a further scheme of the invention, the pipe body is formed by compounding an outer layer and an inner layer.
The invention has the further scheme that the elastic diaphragm is connected with the valve core through a spring.
Compared with the prior art, the invention has the advantages that:
the physiological functions of urine storage and urination of the bladder are highly simulated, the urine storage and urination reaction of the bladder is automatically regulated according to the pressure in the bladder, the discomfort of a patient is reduced, the tolerance of the patient is improved, and the complications after the catheter is used are reduced;
when the pressure in the bladder is larger than the bearing range of the arched elastic diaphragm, the elastic diaphragm is sunken towards the direction of the tube body to drive the valve plug to act so as to lead the valve mechanism to be conducted to discharge urine, and no electronic device is adopted, so that the bladder drainage valve is high in reliability, low in cost, simple in structure and convenient to operate;
the risk that the health of a patient is affected because urine cannot be discharged due to damage of a single elastic membrane, jamming of the valve core or blockage of the inlet can be reduced;
fourthly, the tube cavity is divided into two chambers by the diaphragm, so that foreign matters with larger volume can be prevented from blocking the two inlets at the same time, and the risk that the health of a patient is influenced because urine cannot be discharged is further reduced;
the two valve mechanisms are arranged in a staggered mode, so that the limitation of the installation space to the size of the valve mechanisms is reduced, the installation difficulty is reduced, the sizes of an inlet and an outlet are enlarged, the blocking risk is reduced, and the urination is smoother;
the valve core hole is overlapped or staggered with the inlet and the outlet, so that the on-off of the valve mechanism is realized, urine and foreign matters cannot enter the valve core cavity, the sealing property between the valve core and the wall of the valve core cavity cannot be influenced, and the reliability is further improved;
the elastic diaphragm has hysteresis property when pushing the valve core to move by utilizing the characteristics of the spring, so that a part of pseudo urination caused by sudden increase of abdominal pressure can be avoided, the urination time can be prolonged due to the hysteresis property, the urine can be drained, and the physiological effect of bladder urination can be better fitted;
the catheter is particularly suitable for patients with neurogenic bladder, maintains the urine storage and urination functions of the bladder, remodels the nerve reflex of the bladder, improves the curative effect, shortens the treatment course and provides urodynamics and mechanical support for the patients.
Drawings
Fig. 1 is a schematic diagram of an off state in embodiment 1 of the present invention.
Fig. 2 is a schematic diagram of an on state in embodiment 1 of the present invention.
Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 4 is a view taken along direction a of fig. 3.
Fig. 5 is a schematic structural diagram of embodiment 3 of the present invention.
Fig. 6 is a schematic structural diagram of embodiment 4 of the present invention.
Fig. 7 is a schematic structural diagram of embodiment 5 of the present invention.
Detailed Description
Example 1
As shown in figure 1, the diaphragm type air bag catheter is formed by compounding an outer layer 1 and an inner layer 2, wherein the front part of the catheter body is provided with an air bag 4 and a urethral catheterization hole 3 communicated with a tube cavity, the rear part of the catheter body is provided with an inflation port 5 communicated with the air bag 4, the tail end of the catheter body is provided with a urine discharge port 6, and one side of the catheter body, which faces the urethral hole 3 at the tail end of the catheter body, is connected with an arched elastic diaphragm 9; a valve mechanism is arranged in the pipe cavity, the valve mechanism comprises a valve body 7 and a valve core 10, the edge of the valve body 7 is connected to the inner wall of the pipe cavity in a sealing mode, a valve core cavity 12 and an inlet 8 and an outlet which are respectively communicated with the valve core cavity 12 are arranged on the valve body 7, in the embodiment, the outlet is a hole which is coaxial with the inlet 8, the valve core 10 is arranged in the valve core cavity 12, in order to improve the sealing performance, a valve core hole 11 is formed in the valve core 10, and the inner wall of the elastic membrane 9 is connected with the valve core 10 of the valve mechanism; in a normal state, the valve core hole 11 is staggered with the inlet 8 and the outlet, and the valve mechanism is turned off; when the pressure in the bladder of the elastic membrane 9 is greater than the bearing value thereof, the elastic membrane 9 is sunken as shown in fig. 2, the valve core 10 is pushed to move, the valve core hole 11 is overlapped with the inlet 8 and the outlet, and the valve mechanism is switched on.
In this embodiment, the elastic membrane 9 is adhered to the outer wall of the tube, and the inner wall thereof is connected to the valve core 10 by a spring passing through the wall of the tube. The elastic membrane 9 can also be provided with a hole on the tube body, the edge part of the elastic membrane 9 is connected with the hole, and the inner wall of the elastic membrane is connected with the valve core 10 through a spring or directly.
Example 2
In the membrane balloon urinary catheter shown in fig. 3 and 4, the outlet is a through groove with a width smaller than the width of the valve core cavity 12, so that the friction force between the valve core 10 and the valve core cavity 12 is reduced, and the blockage is prevented.
The rest of the example is as in example 1.
Example 3
In the diaphragm type balloon urinary catheter shown in fig. 5, there are two elastic diaphragms 9 and two valve cores 10, two inlets 8 are arranged on the valve body 7, the two elastic diaphragms 9 are symmetrically arranged on two sides of the catheter body and are respectively connected with one valve core 10, and the movement of each valve core 10 opens or closes one inlet 8.
The rest of the example is as in example 1.
Example 4
As shown in fig. 6, there are two elastic membranes 9 and two valve mechanisms, the tube cavity is divided into two chambers by a membrane 13, at least two catheterization holes 3 respectively communicated with the two chambers are arranged in the front of the tube body, the two elastic membranes 9 are symmetrically connected to the tube body corresponding to the two chambers, and the two valve mechanisms are symmetrically arranged in the two chambers.
The rest of the example was as in example 1.
Example 5
In a diaphragm balloon catheter as shown in fig. 7, the two valve mechanisms are staggered in the two chambers.
The rest of the implementation is as in example 4.
Claims (4)
1. A diaphragm type air bag catheter is characterized in that an air bag (4) and a urine guide hole (3) communicated with a tube cavity are arranged at the front part of a catheter body, an inflation inlet (5) communicated with the air bag (4) is arranged at the rear part of the catheter body, and a urine discharge port (6) is arranged at the tail end of the catheter body, wherein an arched elastic diaphragm (9) is connected to one side of the urine guide hole (3) facing the tail end of the catheter body, a valve mechanism is arranged in the tube cavity, and the inner wall of the elastic diaphragm (9) is connected with a valve core (10) of the valve mechanism to drive the valve core to act so as to switch on or switch off the valve mechanism;
the valve mechanism comprises a valve body (7) and a valve core (10), the edge of the valve body (7) is hermetically connected with the inner wall of the pipe cavity, a valve core cavity (12) is arranged on the valve body (7), and an inlet (8) and an outlet which are respectively communicated with the valve core cavity (12) are arranged, and the valve core (10) is arranged in the valve core cavity (12);
the valve core (10) is provided with a valve core hole (11), and the valve core hole (11) is overlapped or staggered with the inlet (8) and the outlet along with the movement of the valve core (10) to realize the on-off of the valve mechanism;
the pipe body is formed by compounding an outer layer (1) and an inner layer (2); the elastic diaphragm (9) is connected with the valve core (10) through a spring.
2. The membrane type air bag urinary catheter according to claim 1, wherein there are two elastic membranes (9) and two valve cores (10), the valve mechanism has at least two inlets (8), the two elastic membranes (9) are symmetrically arranged on both sides of the catheter body and are respectively connected with one valve core (10), and the movement of each valve core (10) can open or close at least one inlet (8).
3. The diaphragm type air bag urinary catheter according to claim 1, wherein the number of the elastic diaphragms (9) and the valve mechanisms are two, the tube cavity is divided into two chambers by the diaphragms (13), the front part of the tube body is provided with at least two urethral catheterization holes (3) which are respectively communicated with the two chambers, the two elastic diaphragms (9) are respectively connected to the tube bodies corresponding to the two chambers, and the two valve mechanisms are respectively arranged in the two chambers.
4. The membrane-type air bag urinary catheter according to claim 3, wherein the two valve mechanisms are alternately arranged in the two chambers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710156344.5A CN106975142B (en) | 2017-03-16 | 2017-03-16 | Diaphragm formula gasbag catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710156344.5A CN106975142B (en) | 2017-03-16 | 2017-03-16 | Diaphragm formula gasbag catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106975142A CN106975142A (en) | 2017-07-25 |
| CN106975142B true CN106975142B (en) | 2022-07-22 |
Family
ID=59338906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710156344.5A Active CN106975142B (en) | 2017-03-16 | 2017-03-16 | Diaphragm formula gasbag catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106975142B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109758660A (en) * | 2019-02-28 | 2019-05-17 | 山东大学 | Concealed catheter built in a kind of male |
| WO2021183365A2 (en) * | 2020-03-11 | 2021-09-16 | C. R. Bard, Inc. | Pressure activated catheter |
| CN112043943B (en) * | 2020-09-24 | 2022-05-20 | 深圳市康医博科技发展有限公司 | Catheter for urological department |
| CN113367879A (en) * | 2021-06-15 | 2021-09-10 | 温州医科大学附属第一医院 | Penis sectional urine control device for treating urinary incontinence through water circulation power |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4245639A (en) * | 1979-04-30 | 1981-01-20 | C. R. Bard, Inc. | Self-inflating urinary catheter |
| US4412530A (en) * | 1981-09-21 | 1983-11-01 | American Medical Systems, Inc. | Dual-mode valve pressure regulating system |
| US4421510A (en) * | 1979-01-18 | 1983-12-20 | Ahlbeck Stig Goran | Urine drainage device permitting training of the bladder |
| US6090087A (en) * | 1997-07-04 | 2000-07-18 | Tsukada Medical Research Co., Ltd. | Simplified, automatic opening and closing type urination device |
| US6119697A (en) * | 1996-05-28 | 2000-09-19 | Medi-Globe Vertriebs-Gmbh | Device for the treatment of male and female urinary incontinence |
| GB0213596D0 (en) * | 2002-06-14 | 2002-07-24 | Richardson Margaret P | Improvements in and relating to catheter control |
| CN1514740A (en) * | 2001-04-02 | 2004-07-21 | О | Conformable balloonless catheter |
| US6902146B1 (en) * | 2003-05-12 | 2005-06-07 | Steven A Elliott | Catheter valve to prevent bladder atrophy |
| CN201216670Y (en) * | 2008-04-09 | 2009-04-08 | 北京优尼脉科技开发有限公司 | Urinary vessels joint, urine drainage bag and emiction apparatus |
| CN103182102A (en) * | 2011-12-31 | 2013-07-03 | 北京东方潮汐科技发展有限公司 | Urine drainage device, drainage control device, drainage control system and urination method |
| CN204582241U (en) * | 2015-02-26 | 2015-08-26 | 王洪一 | A kind of catheter threshold pressure switching device |
-
2017
- 2017-03-16 CN CN201710156344.5A patent/CN106975142B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4421510A (en) * | 1979-01-18 | 1983-12-20 | Ahlbeck Stig Goran | Urine drainage device permitting training of the bladder |
| US4245639A (en) * | 1979-04-30 | 1981-01-20 | C. R. Bard, Inc. | Self-inflating urinary catheter |
| US4412530A (en) * | 1981-09-21 | 1983-11-01 | American Medical Systems, Inc. | Dual-mode valve pressure regulating system |
| US6119697A (en) * | 1996-05-28 | 2000-09-19 | Medi-Globe Vertriebs-Gmbh | Device for the treatment of male and female urinary incontinence |
| US6090087A (en) * | 1997-07-04 | 2000-07-18 | Tsukada Medical Research Co., Ltd. | Simplified, automatic opening and closing type urination device |
| CN1514740A (en) * | 2001-04-02 | 2004-07-21 | О | Conformable balloonless catheter |
| GB0213596D0 (en) * | 2002-06-14 | 2002-07-24 | Richardson Margaret P | Improvements in and relating to catheter control |
| US6902146B1 (en) * | 2003-05-12 | 2005-06-07 | Steven A Elliott | Catheter valve to prevent bladder atrophy |
| CN201216670Y (en) * | 2008-04-09 | 2009-04-08 | 北京优尼脉科技开发有限公司 | Urinary vessels joint, urine drainage bag and emiction apparatus |
| CN103182102A (en) * | 2011-12-31 | 2013-07-03 | 北京东方潮汐科技发展有限公司 | Urine drainage device, drainage control device, drainage control system and urination method |
| CN204582241U (en) * | 2015-02-26 | 2015-08-26 | 王洪一 | A kind of catheter threshold pressure switching device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106975142A (en) | 2017-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106975142B (en) | Diaphragm formula gasbag catheter | |
| CA2710566C (en) | Fluid drainage catheter having an external flow path | |
| CN203763642U (en) | Leakage-proof urethral catheter | |
| CN101176689B (en) | Urinary bladder power pump driven by external electromagnetism | |
| CN101927054A (en) | Bionic urethral catheterization device | |
| CN101972509A (en) | Double-balloon porous spherical-head anal tube | |
| CN208710776U (en) | A kind of Novel urethral catheter of urination and timed reminding certainly | |
| CN102389346A (en) | Bladder stoma without urine collecting bag | |
| WO2021183365A2 (en) | Pressure activated catheter | |
| CN203483700U (en) | Negative pressure drainage equipment | |
| CN213131497U (en) | Valve mechanism for diaphragm type air bag urinary catheter and urinary catheter | |
| CN207168813U (en) | A kind of diaphragm type Foley catheter | |
| CN209500496U (en) | A kind of valve valve mechanism and catheter that urethral catheterization is effective | |
| CN204601349U (en) | A kind of airtight four chamber single cycle catheters | |
| CN103463727A (en) | Four-chamber double-balloon urinary catheter | |
| CN201304013Y (en) | Leakproof male catheter | |
| CN203090192U (en) | Miniature bladder stoma without drainage pack | |
| CN206404158U (en) | Catheter | |
| CN218010613U (en) | Novel catheter device | |
| CN109498204A (en) | A kind of magnetic control urethra valve | |
| CN214970963U (en) | Urinary surgery washes catheter with bladder | |
| CN211986633U (en) | Valve mechanism for diaphragm type air bag urinary catheter and urinary catheter | |
| CN216962780U (en) | Multifunctional controllable cystostomy tube | |
| CN219423388U (en) | Improved catheter | |
| CN212213745U (en) | Urethral catheterization pressure measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |