CN111544731A - Breathing mask capable of passing through stomach tube - Google Patents
Breathing mask capable of passing through stomach tube Download PDFInfo
- Publication number
- CN111544731A CN111544731A CN201911027220.2A CN201911027220A CN111544731A CN 111544731 A CN111544731 A CN 111544731A CN 201911027220 A CN201911027220 A CN 201911027220A CN 111544731 A CN111544731 A CN 111544731A
- Authority
- CN
- China
- Prior art keywords
- tube
- stomach tube
- pipe joint
- gastric tube
- gastric
- 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.)
- Pending
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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/06—Respiratory or anaesthetic masks
Landscapes
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention provides a respiratory mask capable of passing through a stomach tube, which comprises: a respiratory mask comprising at least one gastric tube connection port with internal threads; a gastric tube passable through the gastric tube connection port; the sealing joint is detachably fixed on the stomach tube connecting port, can be sleeved on the stomach tube and fixes the stomach tube in the stomach tube connecting port; the invention provides a respiratory mask capable of passing through a gastric tube, wherein a gastric tube connecting port is arranged on the mask, so that food drainage is facilitated, the gastric tube is detachably connected through a sealing joint, the sealing effect is ensured, and the gastric tube is prevented from being separated from the respiratory mask.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a breathing mask capable of passing through a stomach tube.
Background
In modern clinical medicine, a ventilator has been widely used in respiratory failure due to various reasons, anesthesia and breathing management during major surgery, respiratory support therapy and emergency resuscitation as an effective means for manually replacing the function of spontaneous ventilation, and has a very important position in the modern medical field. The breathing machine is a vital medical device which can prevent and treat respiratory failure, reduce complications and save and prolong the life of a patient. Breathing mask cooperation breathing machine wide use does not have the wound and breathes, but current breathing mask only can be used for patient to breathe and support, because insert the stomach tube and wear breathing mask again and can lead to breathing mask gas leakage, need feed the food and feed water to the patient, when feeding meal, often need pull out breathing mask, has influenced respiratory therapy effect, makes the patient feel suffocated easily, the oxygen deficiency.
The invention application number 201820390723.0 discloses a respirator mask with a gastric tube groove, wherein a gastric tube drainage port is designed into an elbow, penetrates through the respirator mask, and seals a connecting edge through a sealing gasket, but the drainage port of the elbow is designed into a shape which is not beneficial to food drainage when a patient is fed, and is easy to cause blockage at the elbow. Adopt single seal ring setting in respirator and stomach tube's junction, sealing performance is not good, and the stomach tube very easily deviates from respirator in the clinical use.
The invention application document with the application number of 201721597794.X discloses a breathing mask capable of being inserted into a stomach tube, wherein a through hole is formed in the oxygen mask, the stomach tube is inserted into the nasal cavity of a patient through the through hole and enters the tail of the patient, when the breathing mask is not used, the through hole is sealed through a sealing piece, the breathing of the patient is not influenced, but the stomach tube cannot be connected with the breathing mask, namely, the stomach tube needs to be inserted once when the patient needs to take food, and the pain of the patient is increased.
Disclosure of Invention
The invention designs and develops a breathing mask capable of passing through a stomach tube, a stomach tube connecting port is arranged on the mask, food drainage is facilitated, the stomach tube is detachably connected through a sealing joint, repeated insertion and extraction of the stomach tube are not needed, the sealing effect is ensured, and the stomach tube is prevented from being separated from the breathing mask.
The technical scheme provided by the invention is as follows:
a gastric tube-passable respiratory mask comprising:
a respiratory mask comprising at least one gastric tube connection port with internal threads;
a gastric tube passable through the gastric tube connection port;
the sealing joint is detachably fixed on the stomach tube connecting port, can be sleeved on the stomach tube and fixes the stomach tube in the stomach tube connecting port;
wherein the sealing joint comprises:
the pipe joint is an external thread pipe, is provided with an axial through notch, can be inserted into the stomach tube connecting port and is in threaded fit with the stomach tube connecting port;
and the sealing plug is arranged at one end of the pipe joint through a connecting rib and can seal the pipe joint.
Preferably, the pipe joint includes:
the first pipe joint is an internal threaded pipe, the surface of the first pipe joint is provided with external threads, and the first pipe joint can be screwed into the stomach tube connecting port;
the second pipe joint is an internal threaded pipe, has external threads at one end, can be in threaded fit with the first pipe joint and is screwed into one end of the first pipe joint;
one end of the third pipe joint is provided with external threads, can be in threaded fit with the second pipe joint and is screwed into one end of the second pipe joint;
wherein, the first coupling, the second coupling and the third coupling have a stepwise decreasing inner diameter.
Preferably, the pipe joint is an external thread pipe, and one side of the pipe joint is provided with an axial through notch.
Preferably, the stomach tube sealing device further comprises an elastic sealing body which is cylindrical and can be sleeved on the stomach tube, and the elastic sealing body can be plugged into the tube joint through the through notch.
Preferably, the elastic sealing body has an axial through-slit at one side thereof.
Preferably, the elastic sealing body is made of silica gel or rubber.
Preferably, the breathing mask includes:
a mask body comprising a perimeter beyond which an eye of a wearer is exposed, the perimeter being in contact with the wearer's face to provide a seal;
and the air inlet valve is supported at the top of the mask body and is communicated with the breathing machine.
Preferably, the mask body is made of a silicone material.
Preferably, the mask further comprises an elastic rope which is detachably fixed on the mask body and can fix the mask body on the face of a wearer.
A gastric tube-passable respiratory mask comprising:
a respiratory mask comprising at least one gastric tube connection port with internal threads;
a gastric tube passable through the gastric tube connection port;
and the hoop is detachably fixed on the stomach tube connecting port and can tighten the stomach tube connecting port to fix the stomach tube in the stomach tube connecting port.
Wherein the ferrule comprises:
the surface of the annular belt is provided with a plurality of clamping grooves distributed in an array manner;
a locking member connected with one end of the annular belt and provided with an opening, wherein a movable connecting block is arranged in the opening,
the other end of the annular belt can penetrate through the opening, and the connecting block can be meshed with the clamping groove.
Advantageous effects
The invention designs and develops a breathing mask capable of passing through a stomach tube, a stomach tube connecting port is arranged on the mask, food drainage is facilitated, the stomach tube is detachably connected through a sealing joint, repeated insertion and extraction of the stomach tube are not needed, the sealing effect is ensured, and the stomach tube is prevented from being separated from the breathing mask.
The stomach tube is detachably connected through the sealing joint, so that the stomach tube is not damaged during detachment, the use is convenient, the processing is not needed, and no special assembling tool is needed.
Drawings
Fig. 1 is a schematic view showing the structure of a respiratory mask capable of passing through a gastric tube according to the present invention.
Fig. 2 is a schematic view of the structure of the breathing mask of the present invention.
Fig. 3 is a schematic structural view of the sealing joint according to the present invention.
Fig. 4 is a schematic structural view of the pipe joint according to the present invention.
FIG. 5 is a schematic structural view of a clinch nut of the present invention.
Fig. 6 is a schematic structural view of another embodiment of the pipe joint according to the present invention.
Fig. 7 is a schematic structural view of the elastic sealing body according to the present invention.
Fig. 8 is a schematic view of a connection structure of the pipe joint and the elastic sealing body according to the present invention.
Fig. 9 is a schematic structural view of another embodiment of the respiratory mask through a gastric tube according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
As shown in fig. 1, the present invention provides a respiratory mask capable of passing through a gastric tube, comprising: respiratory mask 110, gastric tube 120, sealing joint 130, and air inlet valve 140.
As shown in fig. 2, the respiratory mask 110 includes at least one gastric tube connection port, which is cylindrical, is integrally connected to the respiratory mask, and has a through hole to allow the gastric tube 120 to pass through the respiratory mask.
In this embodiment, preferably, two gastric tube connection ports are provided on the respiratory mask 110, wherein the inner diameter of the first gastric tube connection port 111 is greater than or equal to the inner diameter of the second gastric tube connection port 112, and gastric tubes with different outer diameter specifications can be connected to the first gastric tube connection port and the second gastric tube connection port 112 respectively and fixed by the sealing joint 130.
As shown in fig. 3-4, the sealing joint 130 includes: the pipe joint 131, the sealing plug 132 and the pipe joint 131 are external threaded pipes and can be inserted into the stomach tube connecting port and in threaded fit with the stomach tube connecting port, and the sealing plug 132 is arranged at one end of the pipe joint 131 through a connecting rib and can block the pipe joint 131.
When the patient does not need the stomach tube and only needs to use respirator, for the stomach tube connector gas leakage that prevents respirator, with sealing joint 130 screw in stomach tube connector in to plug sealing plug 132 in sealing joint one end, sealing joint 131, and then make the stomach tube connector seal. The breathing mask may be connected to an oxygen line through an air inlet valve 140 to serve as a normal breathing mask for the patient.
As shown in fig. 4, the pipe joint 131 includes: a first pipe connector 131a, a second pipe connector 131b and a third pipe connector 131c, wherein the first pipe connector 131a is an internally threaded pipe, the surface of the first pipe connector 131a is provided with external threads, and the first pipe connector 131a can be screwed into a stomach tube connecting port; the second pipe joint 131b is an internally threaded pipe, and has an external thread at one end, and can be screwed into the first pipe joint 131a in threaded engagement with the first pipe joint 131 a; one end of the third pipe joint 131c is provided with external threads which can be matched with the threads of the second pipe joint 131b and screwed into one end of the second pipe joint 131 b; wherein, the inner diameters of the first pipe joint 131a, the second pipe joint 131b and the third pipe joint 131c are gradually decreased. The pipe joint 131 is composed of three sections, namely a first pipe joint 131a, a second pipe joint 131b and a third pipe joint 131c, wherein the inner diameters of the three sections are different, and the three sections have three specifications, namely a large specification, a medium specification and a small specification, which can be sequentially screwed together.
During the use, open sealing plug 132 on the sealing joint 130, select sealing joint's the section of cup jointing according to stomach tube thickness, when adopting the finest stomach tube, connect the three-section and pass through the screw thread and revolve together, overlap on the stomach tube, the minimum third coupling 131c of internal diameter and the laminating of stomach tube outer wall, can not leak gas, pass the face guard with the stomach tube, then go into patient internal back under the stomach tube, fix the stomach tube in the stomach tube interface through first coupling 131a, wear oxygen mask 100 on patient's face.
During thin stomach tube in the adoption, pull down the third coupling 131c of minimum internal diameter, detain the joint of two other internal diameters soon through the screw thread and overlap on the stomach tube together, second coupling 131c and the laminating of stomach tube outer wall can not leak gas, pass the face guard with the stomach tube, then go into patient internal back with the stomach tube, fix the stomach tube in the stomach tube connecting port through first coupling 131a, wear oxygen face guard 100 at patient's face.
When the thickest stomach tube is adopted, the third pipe joint 131c with the smallest inner diameter and the second pipe joint 131b with the middle and small inner diameters are disassembled, only the first pipe joint 131a with the largest inner diameter is utilized to be sleeved on the stomach tube, the first pipe joint 131a is attached to the outer wall of the stomach tube, air leakage cannot occur, the stomach tube penetrates through the mask, then the stomach tube is put into a patient body, the stomach tube is fixed in the stomach tube connecting port through the first pipe joint 131a, and the oxygen mask 100 is worn on the face of the patient.
As shown in fig. 6 to 7, in another embodiment, the tube connector 133 is an external thread tube, and one side of the tube connector 133 has an axial through slit 133a, so as to ensure the sealing effect, an elastic sealing body 134 is provided and disposed between the tube connector 133 and the stomach tube, the elastic sealing body 134 is a cylindrical body and can be sleeved on the stomach tube, the elastic sealing body 134 can be plugged into the tube connector 133 through the through slit 133a, preferably, one side of the elastic sealing body has an axial through slit, the elastic sealing body is made of silica gel or rubber, the elastic sealing body can be unfolded by external force at the through slit position, and the elastic sealing body 134 can be restored to the cylindrical body after the external force is removed.
As shown in fig. 8, when the gastric tube connector is used, the gastric tube is firstly inserted into the body of a patient, the drainage end of the gastric tube penetrates through the gastric tube connector of the oxygen mask, the elastic sealing body is unfolded at the through cutting position by external force, the elastic sealing body 134 is sleeved on the gastric tube, the elastic sealing body 134 is plugged into the pipe connector 133 through the through notch 133a, and the elastic sealing body 134 can fill the gap between the gastric tube and the gastric tube connector. And then the stomach tube is fixed in the stomach tube connecting port through the external thread of the tube joint 133.
The elastic sealing body 134 is made of silica gel or rubber, and can be used as a key sealing element for conveniently disassembling the reusable ferrule connector by utilizing the advantages of high elasticity, high strength, long service life, aging resistance, super-strong extrusion resistance, tear resistance, high temperature resistance and the like, so that the requirement that the roundness of the outer wall of the stomach tube 120 is not good and the sealing can still be normally realized can be met, the ultrahigh elastic recovery rate of the sealing body facilitates the disassembly and assembly of a product at any time, and the sealing performance of the product can be ensured.
As shown in fig. 2, the respiratory mask 110 includes: a mask body 113, the mask body 113 including a peripheral edge 114 beyond which the wearer's eyes are exposed, the peripheral edge 114 being in contact with the wearer's face to provide a seal; an air inlet valve 115 is rotatably supported on the top of the mask body 113 and communicates with the ventilator.
Preferably, the mask body 113 is constructed of a material made of a porous material and/or non-woven fibers or a combination thereof. The elastic cord 115 is detachably fixed to the mask body 113, and the mask body 113 can be fixed to the face of the wearer. Preferably, the gastric tube 120 is a corrugated tube or a flexible gastric tube.
In another embodiment, as shown in fig. 9, the gastric tube connection port is made of silicone, the gastric tube is fixed to the gastric tube connection port through a cuff 150, and the cuff 150 is detachably fixed to the gastric tube connection port, so that the gastric tube connection port can be tightened to fix the gastric tube in the gastric tube connection port. Wherein, the ferrule 150 includes: the device comprises an annular belt 151 and a locking member 152, wherein the surface of the annular belt 151 is provided with a plurality of clamping grooves distributed in an array; retaining member 152 connects girdle 151 one end to have the opening, and have the swing joint piece in the opening, wherein, the opening can be passed to girdle 151 other end, and the connecting block can mesh with the joint groove.
During the use, in descending the patient with the stomach tube earlier internal, the drainage end of stomach tube passes the stomach tube connector of oxygen face guard, overlaps cuff 150 on the stomach tube connector, and the opening can be passed to the girdle 151 other end, stimulates girdle 151, and the connecting block can mesh with the joint groove, makes the stomach tube pass through cuff 150 and fixes on the stomach tube connector.
The operation of the respiratory mask capable of passing through the gastric tube is taken as an example for further description
When the stomach tube sealing device is used, a stomach tube is firstly put into a patient, the drainage end of the stomach tube penetrates through a stomach tube connecting port of an oxygen mask, the elastic sealing body is unfolded at the position of the through cutting seam by using external force, the elastic sealing body 134 is sleeved on the stomach tube, the elastic sealing body 134 is plugged into the pipe joint 133 through the through opening 133a, and the elastic sealing body 134 can fill up a gap between the stomach tube and the stomach tube connecting port. And then the stomach tube is fixed in the stomach tube connecting port through the external thread of the tube joint 133.
The invention designs and develops a breathing mask capable of passing through a stomach tube, wherein a stomach tube connecting port is arranged on the mask, which is beneficial to food drainage, the stomach tube is detachably connected through a sealing joint, repeated insertion and extraction of the stomach tube are not needed, the sealing effect is ensured, the stomach tube is prevented from being separated from the breathing mask, and the sealing joint is used.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A gastric tube-passable respiratory mask, comprising:
a respiratory mask comprising at least one gastric tube connection port with internal threads;
a gastric tube passable through the gastric tube connection port;
the sealing joint is detachably fixed on the stomach tube connecting port, can be sleeved on the stomach tube and fixes the stomach tube in the stomach tube connecting port;
wherein the sealing joint comprises:
the pipe joint is an external thread pipe, is provided with an axial through notch, can be inserted into the stomach tube connecting port and is in threaded fit with the stomach tube connecting port;
and the sealing plug is arranged at one end of the pipe joint through a connecting rib and can seal the pipe joint.
2. A gastric tube passable respiratory mask as claimed in claim 1, wherein the tube connector comprises:
the first pipe joint is an internal threaded pipe, the surface of the first pipe joint is provided with external threads, and the first pipe joint can be screwed into the stomach tube connecting port;
the second pipe joint is an internal threaded pipe, has external threads at one end, can be in threaded fit with the first pipe joint and is screwed into one end of the first pipe joint;
one end of the third pipe joint is provided with external threads, can be in threaded fit with the second pipe joint and is screwed into one end of the second pipe joint;
wherein, the first coupling, the second coupling and the third coupling have a stepwise decreasing inner diameter.
3. A gastric tube passing respiratory mask according to claim 1 wherein the tube connector is an externally threaded tube and has an axial through-going slit on one side.
4. The respirator capable of passing through the gastric tube as claimed in claim 3, further comprising an elastic sealing body which is cylindrical and can be sleeved on the gastric tube, wherein the elastic sealing body can be plugged into the tube connector through the through gap.
5. A gastric tube penetrating respiratory mask according to claim 4 wherein said elastomeric seal has an axial through slit on one side.
6. The gastric tube-penetrating respiratory mask according to claim 4 or 5, wherein the elastic sealing body is made of silicone or rubber.
7. A gastric tube passable respiratory mask as claimed in claim 6, wherein the respiratory mask comprises:
a mask body comprising a perimeter beyond which an eye of a wearer is exposed, the perimeter being in contact with the wearer's face to provide a seal;
and the air inlet valve is supported at the top of the mask body and is communicated with the breathing machine.
8. A gastric tube passing respiratory mask according to claim 7, wherein the mask body is made of silicone material.
9. The gastric tube-passable respiratory mask of claim 8, further comprising a bungee cord removably secured to said mask body to secure said mask body to the face of a wearer.
10. A gastric tube-passable respiratory mask, comprising:
a respiratory mask comprising at least one gastric tube connection port with internal threads;
a gastric tube passable through the gastric tube connection port;
and the hoop is detachably fixed on the stomach tube connecting port and can tighten the stomach tube connecting port to fix the stomach tube in the stomach tube connecting port.
Wherein the ferrule comprises:
the surface of the annular belt is provided with a plurality of clamping grooves distributed in an array manner;
a locking member connected with one end of the annular belt and provided with an opening, wherein a movable connecting block is arranged in the opening,
the other end of the annular belt can penetrate through the opening, and the connecting block can be meshed with the clamping groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911027220.2A CN111544731A (en) | 2019-10-27 | 2019-10-27 | Breathing mask capable of passing through stomach tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911027220.2A CN111544731A (en) | 2019-10-27 | 2019-10-27 | Breathing mask capable of passing through stomach tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111544731A true CN111544731A (en) | 2020-08-18 |
Family
ID=71996692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911027220.2A Pending CN111544731A (en) | 2019-10-27 | 2019-10-27 | Breathing mask capable of passing through stomach tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111544731A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112244808A (en) * | 2020-11-10 | 2021-01-22 | 中国人民解放军陆军特色医学中心 | Stomach tube for measuring chest pressure |
| CN112657031A (en) * | 2020-12-16 | 2021-04-16 | 四川大学华西医院 | Oxygen mask convenient for sputum suction |
| CN114053545A (en) * | 2021-12-21 | 2022-02-18 | 郑州大学第一附属医院 | Leak protection gas anaesthetic mask with stomach tube fixing device |
-
2019
- 2019-10-27 CN CN201911027220.2A patent/CN111544731A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112244808A (en) * | 2020-11-10 | 2021-01-22 | 中国人民解放军陆军特色医学中心 | Stomach tube for measuring chest pressure |
| CN112244808B (en) * | 2020-11-10 | 2024-02-20 | 中国人民解放军陆军特色医学中心 | Stomach tube for measuring chest cavity pressure |
| CN112657031A (en) * | 2020-12-16 | 2021-04-16 | 四川大学华西医院 | Oxygen mask convenient for sputum suction |
| CN114053545A (en) * | 2021-12-21 | 2022-02-18 | 郑州大学第一附属医院 | Leak protection gas anaesthetic mask with stomach tube fixing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111544731A (en) | Breathing mask capable of passing through stomach tube | |
| US4367735A (en) | Nasal cannula | |
| US8499763B2 (en) | Connector for coupling a tracheal tube to an auxiliary device | |
| US9044584B2 (en) | Pneumatic connector for small-bore medical tubing | |
| US20150265792A1 (en) | Ventilating bite block for use in endoscopy procedures | |
| EP2836265B1 (en) | Nasal cannula with pressure monitoring and pressure relief | |
| WO2012077114A1 (en) | Kink-resistant gas delivery tube | |
| CN110496285A (en) | A kind of soft adjustable nasopharyngeal airway | |
| CN211096854U (en) | Breathing mask capable of passing through stomach tube | |
| AU2003207042B2 (en) | Intake Valve | |
| US11413416B2 (en) | Endopharyngeal airway positive pressure ventilation device | |
| CN213491328U (en) | Noninvasive respirator with nasal feeding tube channel | |
| CN211272990U (en) | Respirator mask | |
| CN211512994U (en) | A plugging device and breathing machine for breathing machine | |
| CN213215464U (en) | Novel medical mask with sealed side hole | |
| CN214910736U (en) | Medical stomach tube and mounting structure thereof | |
| CN211188685U (en) | Department of anesthesia is with disposable oxygen therapy face guard | |
| CN210933307U (en) | Continuous oxygen inhalation and respiratory monitoring oxygen mask for tracheotomy patient | |
| CN215807019U (en) | Adapter for noninvasive breathing and ventilation pipeline | |
| CN215426787U (en) | Wear comfortable multi-functional respirator | |
| CN210904528U (en) | Detachable face guard of breathing machine convenient to emergency nursing | |
| CN215426714U (en) | Disposable artificial airway oxygen connecting device | |
| CN216653075U (en) | Anaesthetic mask suitable for various oxygen supply systems | |
| CN220309549U (en) | Medical patient respiratory mask | |
| CN213405961U (en) | Laryngeal mask for bronchoscopy and treatment |
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 |