CN209899416U - Special breath-holding auxiliary nose mask device for CT examination - Google Patents
Special breath-holding auxiliary nose mask device for CT examination Download PDFInfo
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- CN209899416U CN209899416U CN201920628783.6U CN201920628783U CN209899416U CN 209899416 U CN209899416 U CN 209899416U CN 201920628783 U CN201920628783 U CN 201920628783U CN 209899416 U CN209899416 U CN 209899416U
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- 206010006322 Breath holding Diseases 0.000 title claims description 29
- 210000001331 nose Anatomy 0.000 claims abstract description 83
- 210000003128 head Anatomy 0.000 claims abstract description 68
- 238000009423 ventilation Methods 0.000 claims abstract description 59
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000741 silica gel Substances 0.000 claims abstract description 20
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 20
- 210000003928 nasal cavity Anatomy 0.000 claims abstract description 15
- 238000007689 inspection Methods 0.000 claims abstract description 8
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 51
- 239000000463 material Substances 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 208000029078 coronary artery disease Diseases 0.000 description 8
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- 238000012549 training Methods 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 2
- 239000002872 contrast media Substances 0.000 description 2
- 210000004351 coronary vessel Anatomy 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000003434 inspiratory effect Effects 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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Abstract
The utility model relates to the field of medical equipment, concretely relates to supplementary nose cup device of special breath-hold of CT inspection, include: an elastic bandage, a nose covering shell and an air suction shell; the nasal cavity is formed in the nasal cavity sleeving shell, the air suction cavity is formed in the air suction shell, two air ventilation through holes are formed in the nasal cavity sleeving shell at the lower end corresponding to the nostrils of a patient, two air ventilation head holes are formed in the air suction shell at the lower end corresponding to the two air ventilation through holes, and one-way air ventilation heads are installed in the air ventilation head holes. The one-way ventilation head is made of silica gel and is integrally of a conical structure with two oblique planes on two sides and narrow upper part, so that a ventilation seam at the upper end of the one-way ventilation head is in a joint closed state in a normal state, and the external pressure of the one-way ventilation head presses the ventilation seam to be tightly jointed and cannot ventilate. When a patient needs to inhale, the air pressure in the inhaling cavity is smaller than the air pressure in the one-way ventilating head, so that the one-way ventilating head enables the nostril of the patient to inhale and exhale, and the effect of keeping the breath of the patient is achieved.
Description
Technical Field
The utility model relates to the field of medical equipment, particularly, relate to a supplementary nose cup device of special breath-hold of CT inspection.
Background
Coronary Heart Disease (CHD) is one of the common diseases seriously harming human health, and with the improvement of the living standard of people and the change of life style, the overall morbidity and mortality of CHD in China are on the trend of increasing year by year and younger. Clinically, CHD patients often have latent diseases and sudden attacks, and sudden death can be caused seriously, so the method is particularly important for early diagnosis and timely treatment of the CHD patients. In recent years, with the rapid development of CT hardware and post-processing technology, coronary artery CT angiography (coronary CTA) has become one of the important non-invasive alternative means for clinically examining CHD, the sensitivity and specificity for CHD diagnosis can reach as high as 90%, but the image quality is still affected by various factors, and respiratory motion artifacts are the first place, so that the coronary artery CT angiography is important for a patient to hold breath during data acquisition of one cardiac cycle, and the patient with poor breath holding compliance can cause examination failure.
And (4) checking failure hazards: the failure of the examination causes physical and mental pain and economic loss to the examinee, and simultaneously reduces the working efficiency of medical staff such as doctors, technicians, nurses and the like, and the equipment is inefficiently used, thereby causing the waste of medical resources.
The existing method comprises the following steps: in order to improve the success rate of examination, the patient is subjected to routine breath holding training before examination. The breathing mask is used for breathing in firstly, is not full of breathing in, holds breath, does not perform swallowing action while holding breath, holds breath for 10-15 s and then exhales. For elderly, obese, culturally poor, nervous and anxious patients with respiratory motion artifacts, nurses first demonstrate inspiratory and inspiratory inspiration activity and time, and give one-to-one nursing intervention and breath holding training, increasing the number of exercises appropriately until the patients can become proficient in inspiration. Although there are the above multi-mode training, the patient still has bad breath holding due to various factors such as stress during the CT scanning process, which results in the examination failure. In addition, some old patients and patients who cannot take care of themselves need family accompanying examination, and the family members hold the noses of the patients with hands to help the patients to realize breath holding actions during data acquisition, so that certain radiation harm can be caused to the family members of the patients.
When the contrast agent is injected by the high-pressure injector and the concentration of the contrast agent in the blood vessel reaches a certain threshold value during examination, the CT equipment is automatically triggered to start scanning, a technician remotely sends an inspiration and inspiration closing instruction to a patient, the patient or family members of the patient perform assistance cooperation (hold the nose and hold the breath) according to the instruction of the technician to complete the examination, certain hysteresis exists, and the examination failure caused by breathing movement artifacts cannot be completely solved. Besides the heart blood vessels need breath holding during CT examination, the chest needs to be breath held to open the lungs as much as possible during CT examination of the chest for clearly displaying the changes of the lungs.
Disclosure of Invention
In order to solve the problem, an object of the utility model is to provide a special supplementary nose cup device of holding a breath of CT inspection that plays the complementary action to patient's breathing holding a breath.
The utility model aims at realizing through the following technical scheme:
the utility model provides a pair of supplementary nose cup device of special breath-hold of CT inspection, include: a nose cover and an elastic bandage; the both ends of elastic bandage are connected on the nose cup, and the nose cup includes: a nose casing and an air suction casing; the cover nose shell is nose profile modeling structure, cover nose shell is connected with the shell of breathing in, be formed with cover nasal cavity in the cover nose shell, be formed with the chamber of breathing in the shell of breathing in, it sets up two via holes of breathing in to lie in cover nasal cavity lower extreme on the cover nose shell and correspond patient's nostril department, it sets up two head holes of breathing in to lie in the corresponding two head holes of breathing in of chamber lower extreme on the shell of breathing in, the head of ventilating is downthehole to install one-way ventilation head, one-way ventilation head is the silica gel material, one-way ventilation head is cavity and the upper end part that is in the intracavity of breathing in is both sides oblique bevel face type and goes up narrow wide toper structure down.
Furthermore, the profile of the one-way ventilation head is of a circumferential sleeve type, and two convex rings are axially arranged on the one-way ventilation head.
Furthermore, the device also comprises a pressing plate, and the pressing plate is connected to the peripheries of the nose covering shell and the air suction shell.
Further, the pressure plate has a curvature that conforms to the curvature of the face around the nose of the patient.
Furthermore, the nose covering shell, the air suction shell and the pressing plate are all made of hard materials.
Further, both ends of the elastic band are connected to the pressing plate.
Further, the symmetry is provided with two buckles on the clamp plate, and the both ends of elastic bandage are provided with the dop, but the mobile block of dop is on the buckle.
Further, the chuck is arranged in an inverted triangle shape.
Furthermore, a circle of silica gel air bags are arranged on one side of the pressure plate, which is far away from the nose covering shell and the air suction shell.
Further, the device also comprises a breathing indicator, the breathing indicator is arranged on the inspiration shell, and a green indicator light and a red indicator light for indicating inspiration or expiration are arranged on the breathing indicator.
The utility model discloses an among the special supplementary nose cup device of screen gas of CT inspection, one-way ventilation head is the silica gel material and wholly narrow wide toper structure of going up under the oblique bevel face type of both sides for the vent seam of one-way ventilation head upper end is laminating encapsulated situation under normal condition, make the inside atmospheric pressure in suction chamber be greater than one-way ventilation head internal pressure when patient's nostril wants to exhale, thereby one-way ventilation head external pressure presses the vent seam to closely laminating unable ventilation, make the patient unable exhale through the nostril. When the patient need inhale, the inside atmospheric pressure of chamber of breathing in is less than the inside atmospheric pressure of one-way ventilation head, and the inside atmospheric pressure of one-way ventilation head pushes up the crack of ventilating and makes the air can circulate to make one-way ventilation head let the patient nostril can only inhale and can't exhale, reach the effect that lets the patient hold the breath.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
FIG. 1 is a view showing a state of use of the special breath-holding auxiliary nasal mask device for CT examination of the present invention;
FIG. 2 is a structural diagram of the special breath-holding auxiliary nasal mask device for CT examination of the present invention;
FIG. 3 is a structural diagram of an angle of the nose mask of the special breath-holding auxiliary nose mask device for CT examination of the present invention;
FIG. 4 is a structural diagram of another angle of the nose mask of the special breath-holding auxiliary nose mask device for CT examination of the present invention;
FIG. 5 is a sectional view of the nose mask of the special breath-holding auxiliary nose mask device for CT examination of the present invention;
FIG. 6 is a cut-away view of the structure of FIG. 5;
FIG. 7 is a structural diagram of a buckle and a chuck of the special breath-holding auxiliary nasal mask device for CT examination of the present invention;
FIG. 8 is a structural view of a unidirectional ventilation head in the special breath-holding auxiliary nasal mask device for CT examination of the present invention;
FIG. 9 is a sectional view of the unidirectional ventilation head in the special breath-holding auxiliary nasal mask device for CT examination of the present invention;
FIG. 10 is a structural diagram of a respiration indicator in the breath-holding auxiliary nasal mask device for CT examination of the present invention;
wherein the reference numerals are: 1. an elastic band; 2. sleeving a nose shell; 3. an air intake housing; 4. a vent via; 5. a one-way ventilation head; 6. ventilating seams; 7. a raised ring; 8. pressing a plate; 9. buckling; 10. clamping a head; 11. a silica gel air bag; 12. a breathing indicator; 13. a green indicator light; 14. and a red indicator light.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
As shown in fig. 1 to 10, the utility model discloses a supplementary nose cup device of special breath-holding of CT inspection of embodiment includes: a nose cover and an elastic bandage 1; the both ends of elastic bandage 1 are connected on the nose cup, and the nose cup includes: a nose casing 2 and an air suction casing 3; set nasal shell 2 is nose profile modeling structure, set nasal shell 2 is connected with the shell of breathing in 3, set nasal cavity has been formed in set nasal shell 2, 3 are formed with the chamber of breathing in the shell of breathing in, it has two via holes 4 of breathing in to lie in set nasal cavity lower extreme on set nasal shell 2 and correspond patient's nostril department, it has two head holes of ventilating to lie in the chamber lower extreme of breathing in on the shell of breathing in and correspond two via holes 4 departments of ventilating, the head of ventilating is downthehole to install one-way ventilation head 5, one-way ventilation head 5 is the silica gel material, one-way ventilation head 5 is cavity and the upper end part that is in the intracavity of breathing in and is the taper structure of both sides scarf type under the narrow, vent seam 6 has been seted.
Specifically, this device is used for breathing the breath to the patient and plays the additional action when the patient is done the CT inspection, and this device is connected through nose cup structure and elastic bandage 1 chucking and is constituteed, and elastic bandage 1 has certain width and certain elasticity, can be suitable for various sizes heads. The nose mask structure is mainly formed by connecting and combining a nose covering shell 2, an air suction shell 3 and a pressing plate 8, the nose covering shell 2 is structurally sleeved outside a nose in a nose profiling structure, and the air suction shell 3 is fixedly and integrally connected to the lower end of the nose covering shell 2. The nose covering shell 2 in the middle of the pressure plate 8 is structurally designed to be in a nose shape, the nose covering shell 2 can be covered outside the nose of a patient for covering a nasal cavity, and the lower end of the nose covering shell, corresponding to the nostrils of the patient, is provided with two ventilation through holes 4 with the sizes of the nostrils. The lower end of the nose casing 2 is fixedly connected with an air suction casing 3 through an air through hole 4, the air suction casing 3 is internally provided with a cavity, and the nose casing 2 can be communicated with the air suction cavity inside the air suction casing 3 through the air through hole 4.
The lower end of the air suction cavity is connected with a one-way ventilation head 5, and the one-way ventilation head 5 is provided with two ventilation through holes 4 which are respectively corresponding to the nasal cavities. One-way ventilation head 5 is flexible silica gel material, and is in the one-way ventilation head 5 section of breathing in the intracavity portion and is narrow down wide toper structure in both sides scarf type, and one-way ventilation head 5 is inside to be cavity and upper end narrow limit, is provided with superfine gas vent 6 in one-way ventilation head 5's upper end narrow limit department. Because one-way ventilation head 5 is the silica gel material and wholly for narrow wide toper structure in the both sides scarf type down for vent seam 6 of one-way ventilation head 5 upper end is laminating closed condition under normal condition, makes the inside atmospheric pressure of breathing in the chamber be greater than one-way ventilation head 5 internal pressure when patient's nostril wants to exhale, thereby one-way ventilation head 5 external pressure presses vent seam 6 to closely laminating unable ventilation, makes the patient unable exhale through the nostril. When the patient need inhale, inhale the inside atmospheric pressure in chamber and be less than 5 inside atmospheric pressures of one-way ventilation head, 5 inside atmospheric pressures of one-way ventilation head are backed up 6 gassiness of vent and are made the air circulate to make 5 one-way ventilation heads of patient's nostril can only inhale and can't exhale, reach the effect that lets the patient hold the breath.
In a preferred technical scheme, the profile of the one-way ventilation head 5 is a circumferential sleeve type, and two convex rings 7 are arranged on the one-way ventilation head 5 along the axial direction. The profile of the one-way ventilation head 5 is a circumferential sleeve type, and the outer wall of the one-way ventilation head 5 is provided with two raised rings 7 along the axial direction, so that the two raised rings can be clamped on two sides of the shell wall at the lower end of the air suction shell 3 to fix the one-way ventilation head 5.
In a preferable technical scheme, the device further comprises a pressing plate 8, and the pressing plate 8 is connected to the peripheries of the nose covering shell 2 and the air suction shell 3. The pressing plate 8 is fixed on the peripheries of the nose covering shell 2 and the air suction shell 3, and the pressing plate 8 can be pressed on the face beside the nose of a patient to prevent air leakage.
In a preferred technical scheme, the pressing plate 8 has a radian which is inosculated with the radian of the face around the nose of a patient, and the pressing plate 8 has a radian which is inosculated with the radian of the face around the nose of the patient and can be jointed, so that the jointing is tighter.
In the preferred technical scheme, the nose covering shell 2, the air suction shell 3 and the pressing plate 8 are all made of hard materials and have strong stability.
In a preferred embodiment, the ends of the elastic strap 1 are attached to the pressure plate 8, and the pressure plate 8 has a wider dimension, making it easier to fit the device over the patient's face with the elastic strap 1.
In a preferable technical scheme, two buckles 9 are symmetrically arranged on the pressing plate 8, two ends of the elastic bandage 1 are provided with clamping heads 10, and the clamping heads 10 can be movably clamped on the buckles 9. The left side and the right side of the outer side surface of the pressure plate 8 are symmetrically provided with a buckle 9 structure, and two ends of the elastic bandage 1 are provided with clamping heads 10.
In a preferred embodiment, the chuck 10 is formed in an inverted triangular shape. The chuck 10 is arranged in an inverted triangle shape and is plugged into the buckle 9 to prevent loosening.
In a preferable technical scheme, a circle of silica gel air bags 11 are arranged on one side surface of the pressure plate 8, which is far away from the nose covering shell 2 and the air suction shell 3. Be fixed with round silica gel gasbag 11 on the medial surface of clamp plate 8, the width of silica gel gasbag 11 keeps unanimous basically with the width of clamp plate 8, has gas at 11 inside-loading of silica gel gasbag for silica gel gasbag 11 can play the cushioning effect to nose outer lane facial skin when the nose cup overlaps in the nose outside, prevents that clamp plate 8 from compressing tightly the facial skin of patient for a long time and causing patient's skin to be pressed out and appearing the silt blue or green or painful condition. Meanwhile, the silica gel air bag 11 is adopted to prevent the air leakage caused by the fact that the pressing plate 8 region cannot play a good seal effect on the skin of the outer ring of the nose of the patient in the pressing process when the patient carries out CT scanning, and the nose mask cannot effectively play a role in assisting in air closing.
In a preferred technical scheme, the device further comprises a breathing indicator 12, wherein the breathing indicator 12 is arranged on the inhalation shell 3, and a green indicator lamp 13 and a red indicator lamp 14 for indicating inhalation or exhalation are arranged on the breathing indicator 12. The breathing indicator 12 can be fixedly connected to the outer portion of the breathing shell 3, the breathing indicator 12 is fixedly connected with a red indicator light 14 and a green indicator light 13 side by side through the outer side face of the circuit box, and the operation indication of breathing and holding breath is carried out on a patient through two kinds of red and green indicator lights similar to traffic light effect. When the green indicator light 13 is on, the patient starts to perform inspiration, and when the red indicator light 14 is on, the patient starts breath holding and breath holding operations after inspiration. When the red light and the green light are both turned off, the patient finishes the breath holding state and exhales through the mouth. The breathing indicator 12 lights up to better indicate the patient by operating the remote control of the physician.
The utility model discloses an innovation technical point and beneficial effect lie in at least:
1. the breath holding assisting device has a good breath holding assisting effect when a patient with coronary heart disease carries out CT scanning, does not influence the inspiration of the patient through the nasal cavity, and can prevent the condition that the patient fails in CT examination due to the unconscious slight expiration of the nasal cavity caused by tension during the CT scanning in the breath holding process.
2. The nose cup is provided with cover nose shell 2 and 3 two structures that communicate each other through the via hole 4 of ventilating of shell of breathing in to 3 inside one-way ventilation heads 5 that set up of shell of breathing in can play airtight effect when exhaling the patient alone, adopt the shell of breathing in 3 simultaneously to set up one-way ventilation heads 5 and can avoid filling in one-way ventilation heads 5 inside the patient's nostril, can not cause the discomfort of patient's nasal cavity yet.
3. The design that 5 front end symmetries's of one-way ventilation head conical surface and toper top slit at first has one-way circulation in the shape structure, and the one-way ventilation head 5 of silica gel material has stronger deformation characteristic, and the difference in external pressure makes ventilation seam 6 strut or tightly close in 5 one-way ventilation heads that can pass through when patient's nasal cavity is breathed in and is exhaled, can strictly avoid the unable expiratory phenomenon of noticing of patient self.
4. The breathing indicator 12 can be fixedly connected to the outer portion of the air suction shell 3, remote control is achieved through fingers of an operator, operation indication of breathing and breath holding is conducted on a patient through red and green indicating lamps similar to traffic light and traffic light effects, the indication lamps can enable the patient to receive instructions when the operator sends the instructions, and hysteresis is avoided. Meanwhile, the condition that the patient fails to hear and operation fails due to remote voice indication is avoided.
5. Be fixed with round silica gel gasbag 11 on the medial surface of clamp plate 8 for silica gel gasbag 11 can play the cushioning effect to nose outer lane facial skin when nose cup cover is outside in the nose, prevents that clamp plate 8 from compressing tightly the facial skin of patient and causing the patient to be pressed the skin and the circumstances of becoming silted up or pain appears for a long time. Meanwhile, the silica gel air bag 11 is adopted to prevent the air leakage caused by the fact that the pressing plate 8 region cannot play a good seal effect on the skin of the outer ring of the nose of the patient in the pressing process when the patient carries out CT scanning, and the nose mask cannot effectively play a role in assisting in air closing.
6. The left side and the right side of the pressing plate 8 are both provided with the elastic bandage 1 with the clamping head 10 by adopting the clamping buckles 9, the nose mask can be bound on the head of a patient to fix the nose mask, and the nose mask is suitable for head shapes with different sizes.
7. The pressure plate 8, the nose covering shell 2 and the air suction shell 3 are all made of hard materials and have strong stability.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a supplementary nose cup device of special breath-hold of CT inspection which characterized in that includes: a nose cover and an elastic bandage; the both ends of elastic bandage are connected on the nose cup, the nose cup includes: a nose casing and an air suction casing; the cover nose shell is nose profile modeling structure, cover nose shell with the shell of breathing in is connected, be formed with set nasal cavity in the cover nose shell, be formed with the chamber of breathing in the shell of breathing in, lie in on the cover nose shell cover nasal cavity lower extreme corresponds patient nostril department and has seted up two via holes of breathing in, lie in on the shell of breathing in the chamber lower extreme corresponds two vent hole department has seted up two vent holes, the downthehole one-way head of ventilating of installing of vent hole, one-way vent head is the silica gel material, one-way vent head is cavity and is in upper end part in the chamber of breathing in is the narrow toper structure of width under the both sides scarf type, vent joint has been seted up to the upper end narrow limit department of toper structure.
2. The auxiliary nasal mask device for breath holding dedicated to CT examination according to claim 1, wherein the profile of the one-way ventilation head is a circumferential sleeve type, and two convex rings are axially disposed on the one-way ventilation head.
3. The auxiliary nasal mask device for holding breath for CT examination as claimed in claim 1, further comprising a pressure plate connected to the outer periphery of the nasal shell and the air suction shell.
4. The special breath-holding auxiliary nasal mask device for CT examination as claimed in claim 3, wherein said compression plate has a curvature conforming to the curvature of the face around the nose of the patient.
5. The auxiliary nasal mask device for holding breath for CT examination as claimed in claim 3, wherein the nasal covering shell, the air suction shell and the pressure plate are made of hard material.
6. The auxiliary nasal mask device for CT examination as recited in claim 3, wherein the elastic strap is connected to the pressure plate at both ends thereof.
7. The special breath-holding auxiliary nasal mask device for CT examination as claimed in claim 6, wherein said pressure plate is symmetrically provided with two fasteners, and two ends of said elastic band are provided with clips, said clips being movably engaged with said fasteners.
8. The auxiliary nasal mask device for breath holding for CT examination as claimed in claim 7, wherein said clip is configured in an inverted triangular shape.
9. The auxiliary nasal mask device for holding breath for CT examination as claimed in claim 3, wherein a ring of silica gel air bags are disposed on a side of the pressure plate away from the nasal covering shell and the air suction shell.
10. The special breath-holding auxiliary nasal mask device for CT examination according to claim 1, further comprising a breathing indicator, wherein the breathing indicator is disposed on the inhalation housing, and a green indicator light and a red indicator light for indicating inhalation or exhalation are disposed on the breathing indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920628783.6U CN209899416U (en) | 2019-05-05 | 2019-05-05 | Special breath-holding auxiliary nose mask device for CT examination |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920628783.6U CN209899416U (en) | 2019-05-05 | 2019-05-05 | Special breath-holding auxiliary nose mask device for CT examination |
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| Publication Number | Publication Date |
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| CN209899416U true CN209899416U (en) | 2020-01-07 |
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| CN201920628783.6U Expired - Fee Related CN209899416U (en) | 2019-05-05 | 2019-05-05 | Special breath-holding auxiliary nose mask device for CT examination |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112516541A (en) * | 2020-11-25 | 2021-03-19 | 常州利明屏蔽有限公司 | Auxiliary training system used before MR and CT examination |
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2019
- 2019-05-05 CN CN201920628783.6U patent/CN209899416U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112516541A (en) * | 2020-11-25 | 2021-03-19 | 常州利明屏蔽有限公司 | Auxiliary training system used before MR and CT examination |
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Granted publication date: 20200107 |