CN114099132B - Anterior chamber puncture device - Google Patents
Anterior chamber puncture device Download PDFInfo
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- CN114099132B CN114099132B CN202111183707.7A CN202111183707A CN114099132B CN 114099132 B CN114099132 B CN 114099132B CN 202111183707 A CN202111183707 A CN 202111183707A CN 114099132 B CN114099132 B CN 114099132B
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- container unit
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- 210000002159 anterior chamber Anatomy 0.000 title claims abstract description 51
- 210000001742 aqueous humor Anatomy 0.000 claims abstract description 70
- 238000007789 sealing Methods 0.000 claims abstract description 53
- 210000005252 bulbus oculi Anatomy 0.000 claims abstract description 15
- 230000008859 change Effects 0.000 claims abstract description 7
- 238000004891 communication Methods 0.000 claims description 25
- 230000000903 blocking effect Effects 0.000 claims description 23
- 230000009471 action Effects 0.000 claims description 11
- 230000001746 atrial effect Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000004410 intraocular pressure Effects 0.000 abstract description 59
- 230000007423 decrease Effects 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 208000010412 Glaucoma Diseases 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000004054 inflammatory process Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 210000001508 eye Anatomy 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 201000003142 neovascular glaucoma Diseases 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/00781—Apparatus for modifying intraocular pressure, e.g. for glaucoma treatment
Abstract
The invention relates to an anterior chamber puncture device which comprises a container unit, a puncture unit, a unidirectional unit, a plugging unit, a sealing unit, a pressure control unit and an indication unit, wherein the pressure control unit gradually reduces the pressure of the container unit, and aqueous humor enters the container unit and is contacted and mixed with the indication unit. The pressure control unit controls the pressure of the container unit in real time, and the pressure of the container unit is higher than the intraocular pressure at the moment that the puncture unit punctures the eyeball, so that the intraocular pressure suddenly drops is avoided; the pressure control unit slowly reduces the pressure of the container unit to enable the pressure of the container unit to be close to and smaller than the intraocular pressure, the unidirectional unit is opened, aqueous humor enters the container unit, and the steps are repeated continuously to enable the intraocular pressure to be gradually reduced; the pressure control unit reflects the intraocular pressure in real time, and can timely pull out the puncture device to finish operation when the intraocular pressure reaches an ideal value, so that complications caused by repeated operation or too low intraocular pressure due to high intraocular pressure are avoided; the indication unit can change the color after contacting with the aqueous humor, so that the operator can observe the aqueous humor conveniently.
Description
Technical Field
The invention relates to the technical field of eye treatment apparatuses, in particular to an anterior chamber puncture device.
Background
In patients with acute angle glaucoma or neovascular glaucoma, the intraocular pressure is generally over 50mmHg, and anterior chamber puncture is required to drain aqueous humor and reduce the intraocular pressure.
In clinical practice, doctors typically use 1ml syringes for anterior chamber puncture. At the moment the injector penetrates into the eyeball, the intraocular pressure suddenly drops, and a series of complications such as bleeding, choroidal separation and the like are easily caused. There is a clinical lack of an anterior chamber puncture device that can gently decrease intraocular pressure. Meanwhile, since the intraocular pressure cannot be monitored in real time, whether the aqueous humor with a proper volume is released or not cannot be judged during puncturing, whether the intraocular pressure reaches an ideal level or not is difficult to judge when the needle is pulled out to finish operation. Therefore, after the conventional anterior chamber puncture, the intraocular pressure needs to be measured again, and if the intraocular pressure is higher, the puncture needs to be performed again; if the intraocular pressure is low, some complications may occur.
In addition, since the aqueous humor is colorless and transparent, it is difficult to observe the aqueous humor in the syringe, and it is inconvenient to determine whether there is aqueous humor or whether the aqueous humor is sufficient. If the operator pays excessive attention to aqueous humor in the syringe, distraction and movement of the puncture needle may occur, thereby damaging the intraocular structure.
At present, an effective solution is not proposed for solving the problems that the intraocular pressure cannot be slowly reduced, the intraocular pressure cannot be monitored in real time, aqueous humor is difficult to observe and the like in the related art.
Disclosure of Invention
The invention aims at overcoming the defects in the prior art, and provides an anterior chamber puncture device which solves the problems that the intraocular pressure cannot be slowly reduced, the intraocular pressure cannot be monitored in real time to judge when the operation is finished, the aqueous humor is difficult to observe and the like in the related art.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
an anterior chamber puncturing device, comprising:
a container unit;
the puncture unit is communicated with the first end of the container unit and is used for puncturing into the anterior chamber of the eyeball of the patient;
a unidirectional unit disposed inside the first end of the container unit and closing or exposing the first end of the container unit;
the plugging unit is arranged in the container unit;
a sealing unit disposed at a second end of the container unit;
a pressure control unit connected to the sealing unit for communicating with the second end of the container unit through the sealing unit and providing pressure to the container unit and displaying the pressure;
the indicating unit is arranged in the container unit and is positioned between the unidirectional unit and the plugging unit and used for being contacted and mixed with the aqueous humor to change the color of the aqueous humor;
Under the action of the pressure control unit, if the pressure of the container unit between the unidirectional unit and the blocking unit is greater than or equal to the pressure of the anterior chamber, the unidirectional unit seals the first end of the container unit;
under the action of the pressure control unit gradually reducing the pressure provided to the container unit, if the pressure of the container unit between the unidirectional unit and the plugging unit is smaller than the pressure of the anterior chamber, the unidirectional unit exposes the first end of the container unit, so that the anterior chamber water enters the container unit from the puncture unit and contacts and mixes with the indication unit.
In some of these embodiments, the container unit comprises:
a container element;
a first chamber element arranged inside the container element and located between the first end of the container element and the plugging unit, the inside of the first chamber element being provided with the indication unit;
a second chamber element disposed inside the container element and located between the second end of the container element and the occlusion unit and in communication with the pressure control unit;
A first interface element disposed at a first end of the container element and in communication with the first chamber element, the first end of the first interface element being provided with the piercing unit and the second end of the first interface element being provided with the unidirectional unit;
a second interface element disposed at a second end of the container element and in communication with the second chamber element, the second end of the second interface element being connected to the pressure control unit;
under the action of the pressure control unit, if the pressure of the first chamber element is greater than or equal to the pressure of the anterior chamber under the condition that the puncture unit punctures into the anterior chamber of the eyeball of the patient, the unidirectional unit seals the second end of the first interface element;
under the action of the pressure control unit gradually reducing the pressure provided to the second chamber element, if the pressure of the first chamber element is smaller than the pressure of the anterior chamber, the unidirectional unit exposes the second end of the first interface element, so that the anterior chamber water enters the first chamber element from the puncture unit and is in contact and mixed with the indication unit.
In some of these embodiments, the container unit further comprises:
a volume scale element disposed on an outer surface of the container element for indicating a volume of aqueous humor of the first chamber element.
In some of these embodiments, the lancing unit includes:
a connector element detachably connected to the first end of the container unit;
and the puncture element is arranged at the first end of the joint element and communicated with the joint element.
In some of these embodiments, the unidirectional unit comprises:
the unidirectional element is arranged at the first end of the container unit and is used for sealing or exposing the first end of the container unit under the action of the pressure control unit.
In some of these embodiments, the unidirectional unit further comprises:
and the connecting element is arranged on one side of the unidirectional element and is fixedly connected with the container unit.
In some of these embodiments, the projected area of the unidirectional unit is equal to or greater than the projected area of the first end of the container unit.
In some of these embodiments, the unidirectional unit has the same shape as the first end of the container unit.
In some of these embodiments, the projected area of the unidirectional element is greater than or equal to the projected area of the first end of the container unit.
In some of these embodiments, the unidirectional element has the same shape as the first end of the container unit.
In some of these embodiments, the occlusion unit comprises:
and a sliding element provided inside the container unit for reciprocating movement between a first end of the pressure control unit acting on the container unit and a second end of the container unit.
In some of these embodiments, the occlusion unit further comprises:
the elastic element is arranged at the first end of the sliding element, and the outer wall of the elastic element is tightly attached to the inner wall of the container unit.
In some of these embodiments, the sealing unit comprises:
a sealing element disposed at a second end of the container unit;
and the through hole element penetrates through the sealing element and is connected with the pressure control unit.
In some of these embodiments, the pressure control unit comprises:
a pressure control element disposed externally of the second end of the container unit;
A communication member, a second end of which communicates with the pressure control member, a first end of which communicates with a second end of the container unit through the sealing unit;
and the display element is connected with the pressure control element and is used for displaying the pressure provided by the pressure control element to the container unit.
In some of these embodiments, the pressure control unit further comprises:
the key element is connected with the pressure control element and used for controlling the pressure control element.
In some of these embodiments, the indication unit comprises:
a first color indicating element disposed between the first end of the container unit and the occlusion unit for changing the color of aqueous humor when in contact with the aqueous humor; or (b)
A second color indicating member disposed between the first end of the container unit and the blocking unit for changing the color of the aqueous humor in case of contact and reaction with the aqueous humor, for indicating a concentration range of a specific substance of the aqueous humor.
In some of these embodiments, further comprising:
The limiting unit is arranged at the first end of the container unit and used for limiting the position of the unidirectional unit so as to prevent the unidirectional unit from falling off from the container unit and/or falling into the container unit.
In some of these embodiments, the limiting unit includes:
the first limiting element is arranged at the first end of the container unit and used for limiting the position of the second end of the unidirectional unit so as to prevent the unidirectional unit from falling into the container unit.
In some of these embodiments, the limiting unit includes:
the second limiting element is arranged at the first end of the container unit and used for limiting the position of the first end of the unidirectional unit so as to prevent the unidirectional unit from falling off from the container unit.
In some of these embodiments, further comprising;
and the fixing unit is detachably connected with the container unit and is removably placed on the auricle of the patient and used for fixing the container unit.
In some of these embodiments, the fixing unit includes:
a first fixing element detachably connected to the container unit;
A support element connected to the first fixing element;
a second fixation element coupled to the support element for removable placement on the pinna of the patient.
Compared with the prior art, the invention has the following technical effects:
according to the anterior chamber puncture device, the pressure of the container unit is controlled in real time by the pressure control unit, and at the moment that the puncture unit penetrates into the eyeball, the pressure of the container unit is larger than the intraocular pressure, so that the sudden drop of the intraocular pressure is avoided; the pressure control unit slowly reduces the pressure of the container unit so that the pressure of the container unit is close to and smaller than the intraocular pressure, the unidirectional unit exposes out of the aqueous humor channel, aqueous humor enters the container unit, the intraocular pressure is reduced, the above steps are repeated continuously, the intraocular pressure is reduced gradually, the pressure control unit displays the intraocular pressure in real time, and the intraocular pressure reaches an ideal level; the pressure control unit reflects the intraocular pressure level in real time, so that the puncture device can be pulled out to finish operation when the intraocular pressure reaches an ideal value, and complications caused by repeated operation or too low intraocular pressure due to high intraocular pressure are avoided; the indicating unit is contacted with the aqueous humor and changes the color of the aqueous humor, so that an operator can observe the aqueous humor conveniently; the pressure control unit can be reused, so that the cost is reduced.
Drawings
FIG. 1 is a schematic illustration (one) of an atrial puncturing device in accordance with an embodiment of the present invention;
FIG. 2 is a partial cross-sectional view (one) of an atrial puncturing device in accordance with an embodiment of the present invention;
FIG. 3 is a schematic illustration of a container unit according to an embodiment of the invention;
FIG. 4 is a cross-sectional view of a container unit according to an embodiment of the invention;
FIG. 5 is a schematic view of a lancing unit according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a unidirectional unit according to an embodiment of the invention;
FIG. 7 is a schematic illustration of a plugging unit according to an embodiment of the invention;
FIG. 8 is a schematic view of a sealing unit according to an embodiment of the invention;
FIG. 9 is a schematic diagram of a pressure control unit according to an embodiment of the present invention;
FIG. 10 is a schematic view (one) showing a state of use of the atrial puncturing device according to an embodiment of the present invention;
FIG. 11 is a schematic view (II) showing a state of use of the anterior chamber puncturing device according to the embodiment of the present invention;
FIG. 12 is a schematic view of an atrial puncturing device according to an embodiment of the present invention (II);
FIG. 13 is a partial cross-sectional view (II) of an atrial puncturing device in accordance with an embodiment of the present invention;
FIG. 14 is a schematic view of a spacing unit according to an embodiment of the present invention;
FIG. 15 is a schematic view (III) showing a state of use of the anterior chamber puncturing device in accordance with the embodiment of the present invention;
FIG. 16 is a schematic view (IV) showing a state of use of the anterior chamber puncturing device according to the embodiment of the present invention;
FIG. 17 is a schematic view (III) of an atrial puncturing device in accordance with an embodiment of the present invention;
fig. 18 is a schematic view of a fixation unit of an atrial puncturing device according to an embodiment of the present invention.
Wherein the reference numerals are as follows: 10. a container unit; 11. a container element; 12. a first chamber element; 13. a second chamber element; 14. a first interface element; 15. a second interface element; 16. a volume scale element;
20. a puncture unit; 21. a joint element; 22. a piercing element;
30. a unidirectional unit; 31. a unidirectional element; 32. a connecting element;
40. a plugging unit; 41. a sliding element; 42. an elastic element;
50. a sealing unit; 51. a sealing member; 52. a via element;
60. a pressure control unit; 61. a pressure control element; 62. a communication member; 63. a display element; 64. a key element;
70. an indication unit; 71. a first color indicating element; 72. a second color indicating element;
80. a limit unit; 81. a first limiting element; 82. a second limiting element;
90. a fixing unit; 91. a first fixing element; 92. a support element; 93. a second fixing element.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
Example 1
An exemplary embodiment of the present invention, as shown in fig. 1-2, an anterior chamber puncturing device includes a container unit 10, a puncturing unit 20, a unidirectional unit 30, a blocking unit 40, a sealing unit 50, a pressure control unit 60, and an indicating unit 70. Wherein the puncture unit 20 is detachably disposed at the first end of the container unit 10 and is communicated with the first end of the container unit 10, for puncturing the anterior chamber of the eyeball of the patient; the unidirectional unit 30 is disposed inside the container unit 10 and closes or exposes a first end of the container unit 10; the blocking unit 40 is provided inside the container unit 10; the sealing unit 50 is disposed at the second end of the container unit 10, and is used for sealing the second end of the container unit 10; the pressure control unit 60 is detachably connected to the sealing unit 50, is communicated with the second end of the container unit 10 through the sealing unit 50, is used for providing pressure to the container unit 10 and displaying the pressure, and is used for controlling the plugging unit 40 to reciprocate between the first end of the container unit 10 and the second end of the container unit 10 so that the pressure between the first end of the container unit 10 and the plugging unit 40 is substantially the same as the pressure between the second end of the container unit 10 and the plugging unit 40, namely, the pressure balance is maintained; the indication unit 70 is provided inside the container unit 10 between the one-way unit 30 and the blocking unit 40, and is adapted to be mixed with the aqueous humor to change the color of the aqueous humor in case that the aqueous humor enters the container unit 10.
The working principle is as follows:
under the action of the pressure control unit 60, if the pressure of the container unit 10 between the unidirectional unit 30 and the blocking unit 40 is equal to or greater than the pressure of the anterior chamber under the condition that the puncture unit 20 punctures into the anterior chamber of the eyeball of the patient, the unidirectional unit 30 closes the first end of the container unit 10 so that aqueous humor cannot enter the interior of the container unit 10 through the puncture unit 20;
if the pressure of the container unit 10 between the unidirectional unit 30 and the blocking unit 40 is smaller than the pressure of the anterior chamber under the effect that the pressure control unit 60 gradually decreases the pressure supplied to the container unit 10, the unidirectional unit 30 exposes the first end of the container unit 10 so that the anterior chamber water enters the interior of the container unit 10 from the puncture unit 20 and is mixed in contact with the indication unit 70.
As shown in fig. 3-4, the container unit 10 comprises a container element 11, a first chamber element 12, a second chamber element 13, a first interface element 14 and a second interface element 15. Wherein the container element 11 is internally provided with a unidirectional unit 30, a blocking unit 40 and a sealing unit 50 in sequence from a first end to a second end thereof; the first chamber element 12 is arranged inside the container element 11 and between the first end of the container element 11 and the plugging unit 40, inside which an indication unit 70 is arranged; the second chamber element 13 is arranged inside the container element 11, between the second end of the container element 11 and the plugging unit 40, and in communication with the pressure control unit 60; the first interface element 14 is arranged at a first end of the container element 11 and is in communication with the first chamber element 12, the first end of which is detachably connected to the piercing unit 20, and the second end of which is provided with the unidirectional unit 30; the second interface element 15 is arranged at a second end of the container element 11 and communicates with the second chamber element 13, a first end of which is detachably provided with the sealing unit 50 and a second end of which is connected to the pressure control unit 60.
Wherein the container unit 10 is a syringe, the container element 11 is a syringe body, the first interface element 14 is a syringe head interface, and the second interface element 15 is a syringe tail interface.
Wherein the container element 11 is made of a colorless transparent material.
Wherein the first chamber element 12 communicates with the second chamber element 13 without the plugging unit 40 being provided inside the container element 11; in the case where the blocking unit 40 is provided inside the container element 11, the first chamber element 12 is not in communication with the second chamber element 13.
Specifically, the pressure control unit 60 adjusts the pressure of the second chamber element 13 so that the pressure of the first chamber element 12 is passively adjusted. In the case of a pressure of the second chamber element 13 being equal to or greater than the pressure of the first chamber element 12, the blocking unit 40 moves from the second end of the container element 11 towards the first end of the container element 11, the unidirectional unit 30 always blocking the second end of the first interface element 14; in case the pressure of the second chamber element 13 is smaller than the pressure of the first chamber element 12, the blocking unit 40 is moved from the first end of the container element 11 towards the second end of the container element 11, the unidirectional unit 30 exposing the second end of the first interface element 14 such that the puncturing unit 20 is in communication with the first chamber element 12.
Further, the container unit 10 further comprises a volume scale element 16, wherein the volume scale element 16 is arranged on the outer wall of the container element 11 for indicating the volume of the aqueous humor.
As shown in fig. 5, lancing unit 20 includes a tab member 21 and a lancing member 22. Wherein the second end of the adapter element 21 is connected to the first end of the container unit 10 and the first end of the adapter element 21 is connected to the piercing element 22.
In particular, the second end of the joint element 21 is detachably connected to the first end of the first interface element 14.
In some of these embodiments, the penetrating member 22 is a needle.
With the unidirectional unit 30 exposing the second end of the first interface element 14, aqueous humor enters the interior of the first chamber element 12 through the piercing element 22, the connector element 21, the first interface element 14.
As shown in fig. 6, the unidirectional unit 30 includes a unidirectional element 31 and a connection element 32. Wherein the unidirectional element 31 is disposed inside the first end of the container unit 10, for closing or exposing the first end of the container unit 10; the connecting member 32 is disposed at the first end of the unidirectional member 31 and connected to the inner wall of the first end of the container unit 10, thereby preventing the unidirectional member 31 from being separated from the container unit 10.
Specifically, the unidirectional element 31 is disposed at a connection position between the container element 11 and the first interface element 14, i.e. at a connection position between the first end of the container element 11 and the second end of the first interface element 14, i.e. inside the first chamber element 12, and is used for closing or exposing the first end of the container element 11 and the second end of the first interface element 14; the connecting element 32 is connected to the inner wall of the first end of the container element 11.
In some of these embodiments, the unidirectional element 31 is a flap that is made of a less elastically deformable material, such as hard plastic, rubber, or the like.
In some of these embodiments, the connecting element 32 is a connecting post or a relatively strong adhesive layer (e.g., 502 glue layer).
In some of these embodiments, the projected area of the unidirectional element 31 is greater than or equal to the projected area of the first end of the container element 11/the second end of the first interface element 14.
Wherein if the cross section of the unidirectional element 31 is circular, the diameter of the unidirectional element 31 is equal to or larger than the inner diameter of the first end of the container element 11/the second end of the first interface element 14.
If the cross-section of the unidirectional element 31 is non-circular (e.g., rectangular), the smallest width of the unidirectional element 31 is equal to or greater than the inner diameter of the first end of the container element 11/the second end of the first interface element 14.
As shown in fig. 7, the blocking unit 40 includes a sliding member 41 and an elastic member 42. Wherein the sliding member 41 is slidably disposed inside the container unit 10 and reciprocates between a first end of the container unit 10 and a second end of the container unit 10 by the pressure control unit 60; the elastic member 42 is provided at the first end of the sliding member 41, and an outer wall thereof is in close contact with an inner wall of the container unit 10 for making the first end of the container unit 10 not communicate with the second end of the container unit 10.
Specifically, the sliding element 41 is arranged inside the container element 11, and the elastic element 42 and the sliding element 41 divide the inside of the container element 11 into the first chamber element 12 and the second chamber element 13.
Wherein the outer diameter of the sliding element 41 is equal to the inner diameter of the container element 11 (the inner diameter of the first end of the non-container element 11)
In some of these embodiments, the outer diameter of the resilient element 42 is greater than or equal to the inner diameter of the container element 11 (the inner diameter of the first end of the non-container element 11). Wherein the ratio of the outer diameter of the elastic member 42 to the inner diameter of the container member 11 is (1 to 1.1): 1. preferably, the ratio of the outer diameter of the sealing element 51 to the inner diameter of the container element 11 is (1-1.05): 1.
in some of these embodiments, the sliding element 41 is in a snap-in connection with the elastic element 42, avoiding that the sliding element 41 is separated from the elastic element 42 during movement.
In some of these embodiments, the elastic element 42 is made of rubber, silicone material, having a certain elastic deformation, capable of being in close contact with the inner wall of the container element 11, so that the first chamber element 12 and the second chamber element 13 cannot communicate.
As shown in fig. 8, the sealing unit 50 includes a sealing member 51 and a through-hole member 52. Wherein the sealing member 51 is detachably disposed at the second end of the container unit 10 and seals the second end of the container unit 10; the through-hole member 52 is provided through the sealing member 51 and connected to the pressure control unit 60 for communicating the pressure control unit 60 with the second end of the container unit 10 through the through-hole member 52.
In particular, the sealing element 51 is detachably arranged at the second end of the container element 11, i.e. at the location where the second end of the second chamber element 13 is connected to the first end of the second interface element 15, for sealing the second end of the second chamber element 13/the first end of the second interface element 15.
In some of these embodiments, the outer diameter of the sealing element 51 is equal to or greater than the inner diameter of the second chamber element 13 (the inner diameter of the second end of the container element 11). Wherein the ratio of the outer diameter of the sealing member 51 to the inner diameter of the second chamber member 13 is (1 to 1.1): 1. preferably, the ratio of the outer diameter of the sealing element 51 to the inner diameter of the second chamber element 13 is (1-1.05): 1.
in some of these embodiments, the elastic element 42 is made of rubber, silicone material, having a certain elastic deformation, capable of making close contact with the inner wall of the second end of the second chamber element 13/the second interface element 15, so that the second chamber element 13 cannot communicate with the outside.
As shown in fig. 9, the pressure control unit 60 includes a pressure control member 61, a communication member 62, and a display member 63. Wherein the pressure control member 61 is disposed outside the second end of the container unit 10 for adjusting the pressure of the container unit 10; the communication member 62 is connected to the pressure control member 61 and communicates with the second end of the container unit 10 through the sealing unit 50 for providing a gas flow passage between the pressure control member 61 and the second end of the container unit 10; the display element 63 is connected to the pressure control element 61 for displaying the pressure provided by the pressure control element 61 to the container unit 10.
Specifically, a pressure control element 61 is provided outside the second end of the container element 11 for regulating the pressure of the second chamber element 13; the communication member 62 passes through the through-hole member 52 and communicates with the second chamber member 13 for providing a gas flow passage of the pressure control member 61 with the second chamber member 13, so that the pressure control member 61 supplies gas to the second chamber member 13 or extracts gas from the second chamber member 13.
In some of these embodiments, the outer diameter of the communication member 62 is equal to or greater than the inner diameter of the through-hole member 52. Wherein the ratio of the outer diameter of the communication element 62 to the inner diameter of the through-hole element 52 is (1 to 1.2): 1. preferably, the ratio of the outer diameter of the communication member 62 to the inner diameter of the through-hole member 52 is (1 to 1.1): 1. more preferably, the ratio of the outer diameter of the communication member 62 to the inner diameter of the through-hole member 52 is (1 to 1.05): 1.
in some of these embodiments, the display element 63 is disposed on an outer surface of the pressure control element 61.
In some of these embodiments, pressure control element 61 is a pressure pump, communication element 62 is a communication tube, and display element 63 is a display screen.
Further, the pressure control unit 60 further comprises a key element 64, the key element 64 being connected to the pressure control element 61 for sending control instructions to the pressure control element 61, including but not limited to switches, pressure regulation up, pressure regulation down, activation/functions, etc.
Wherein the key element 64 is disposed on the outer surface of the pressure control element 61.
The indication unit 70 includes a first color indication member 71, and the first color indication member 71 is disposed between the first end of the container unit 10 and the blocking unit 40, for changing the color of the aqueous humor from colorless transparent to have a certain color (e.g., red, blue) when the aqueous humor is in contact with the aqueous humor.
Wherein the first color indicator piece 71 is non-reactive with aqueous humor.
Specifically, the first color indicator element 71 is disposed between the first end of the container element 11 and the elastic element 42, i.e. inside the first chamber element 12.
In some of these embodiments, the first color indicating member 71 is a powder or liquid that is disposed within the interior of the first chamber member 12 in a volume.
In some of these embodiments, the first color-indicating element 71 is a color-imparting coating disposed over the inner wall of the first chamber element 12.
The application method of the invention is as follows:
the pressure control member 61 is activated to make the initial pressure 3 to 5mmHg, such as 60mmHg, higher than the intraocular pressure of the patient;
the pressure control member 61 applies pressure to the second chamber member 13 through the communication member 62 and transmits the pressure to the first chamber member 12;
Under the influence of the pressure control element 61, the unidirectional element 31 closes the second end of the first interface element 14, as shown in fig. 10;
the physician punctures the puncturing element 22 into the eyeball of the patient, and as the pressure of the first chamber element 12 is larger than the intraocular pressure of the patient, the intraocular pressure of the patient does not suddenly drop, and aqueous humor does not enter the first chamber element 12;
the pressure control member 61 gradually decreases the pressure supplied to the second chamber member 13 so that the pressure of the first chamber member 12 gradually decreases from 60mmHg to 59mmHg to 58mmHg to 57mmHg until the pressure of the first chamber member 12 is the same as the intraocular pressure (anterior chamber pressure), at which time the one-way member 31 exposes the second end of the first interface member 14, as shown in fig. 11;
aqueous humor enters the interior of the first chamber element 12 from the piercing element 22, the connector element 21, the first interface element 14 and contacts the first color-indicating element 71, the aqueous humor color changing;
when the intraocular pressure is the same as the pressure of the first chamber element 12, the unidirectional element 31 again closes the second end of the first interface element 14;
the above steps are repeated until the pressure (intraocular pressure) displayed by the display element 63 meets the treatment standard;
removing the penetrating member 22 from the anterior chamber and ending the treatment;
the sealing member 51 is separated from the second interface member 15, and the container unit 10 and the puncture unit 20 may be discarded to a point of waste medical recovery, and the sealing unit 50 and the pressure control unit 60 may be reused.
The pressure control unit is used for controlling the pressure of the container unit in real time, and the pressure of the container unit is higher than the intraocular pressure at the moment when the puncture unit penetrates into the eyeball, so that the sudden drop of the intraocular pressure is avoided; the pressure control unit slowly reduces the pressure of the container unit so that the pressure of the container unit is close to and smaller than the intraocular pressure, the unidirectional unit exposes out of the aqueous humor channel, aqueous humor enters the container unit, the intraocular pressure is reduced, the steps are continuously repeated, the intraocular pressure is gradually reduced, the pressure control unit displays the intraocular pressure in real time, and therefore when the intraocular pressure reaches an ideal value, the puncture device can be timely pulled out to finish operation, and complications caused by repeated operation or intraocular pressure insufficiency due to high intraocular pressure are avoided; the indicating unit is contacted with the aqueous humor and changes the color of the aqueous humor, so that an operator can observe the aqueous humor conveniently; the pressure control unit can be reused, so that the cost is reduced.
Example 2
This embodiment is a modified embodiment of embodiment 1.
As shown in fig. 12 to 13, an anterior chamber puncturing device includes a container unit 10, a puncturing unit 20, a one-way unit 30, a blocking unit 40, a sealing unit 50, a pressure control unit 60, an indicating unit 70, and a limiting unit 80. Wherein the puncture unit 20 is detachably disposed at the first end of the container unit 10 and is communicated with the first end of the container unit 10, for puncturing the anterior chamber of the eyeball of the patient; the unidirectional unit 30 is disposed inside the container unit 10 and closes or exposes a first end of the container unit 10; the blocking unit 40 is provided inside the container unit 10; the sealing unit 50 is disposed at the second end of the container unit 10, and is used for sealing the second end of the container unit 10; the pressure control unit 60 is detachably connected to the sealing unit 50, is communicated with the second end of the container unit 10 through the sealing unit 50, is used for providing pressure to the container unit 10 and displaying the pressure, and is used for controlling the plugging unit 40 to reciprocate between the first end of the container unit 10 and the second end of the container unit 10 so that the pressure between the first end of the container unit 10 and the plugging unit 40 is substantially the same as the pressure between the second end of the container unit 10 and the plugging unit 40, namely, the pressure balance is maintained; the indication unit 70 is provided inside the container unit 10 between the one-way unit 30 and the blocking unit 40, for being mixed with the aqueous humor to change the color of the aqueous humor in the case that the aqueous humor enters the container unit 10; the limiting unit 80 is disposed at the first end of the container unit 10, and is used for limiting the position of the unidirectional unit 30, so as to prevent the unidirectional unit 30 from falling out of the container unit 10 and/or falling into the container unit 10.
The structures and connection relationships of the container unit 10, the puncture unit 20, the blocking unit 40, the sealing unit 50, and the pressure control unit 60 are substantially the same as those of embodiment 1, and will not be described herein.
The unidirectional unit 30 includes a unidirectional element 31, the unidirectional element 31 being slidably disposed inside the first end of the container unit 10 for closing or exposing the first end of the container unit 10 under the co-action of the pressure control unit 60 and the anterior chamber.
Specifically, in some of these embodiments, the unidirectional element 31 is a flap that is made of a less elastically deformable material, such as a hard plastic, rubber, or the like.
In some of these embodiments, the projected area of the unidirectional element 31 is greater than or equal to the projected area of the first end of the container element 11/the second end of the first interface element 14.
Wherein the cross section of the unidirectional element 31 is circular, and the diameter of the unidirectional element 31 is equal to or larger than the inner diameter of the first end of the container element 11/the second end of the first interface element 14.
The indication unit 70 includes a second color indication element 72, and the second color indication element 72 is disposed between the first end of the container unit 10 and the blocking unit 40, for reacting with a specific substance of the aqueous humor and changing the color of the aqueous humor to change the aqueous humor from colorless transparent to have a certain color (e.g., milky white, yellow, bluish, blue, greenish-dark, red) when contacting with the aqueous humor.
Specifically, the second color indicator element 72 is disposed between the first end of the container element 11 and the resilient element 42, i.e. inside the first chamber element 12.
In some of these embodiments, the second color indicating member 72 is a powder or liquid that is disposed within the interior of the first chamber member 12 in a volume.
In some of these embodiments, the second color indicating element 72 is a color-imparting coating disposed over the inner wall of the first chamber element 12.
Specifically, the second color indicator 72 is a protein reactive agent for reacting with proteins in aqueous humor and determining the severity of inflammation based on the color of the aqueous humor.
As shown in fig. 14, the limiting unit 80 includes a first limiting element 81, where the first limiting element 81 is disposed at a first end of the container unit 10 and is used to limit a position of a second end of the unidirectional unit 30, so as to prevent the unidirectional unit 30 from falling into the container unit 10.
Specifically, the first limiting element 81 is disposed at a first end of the container element 11, that is, a connection position between the first end of the first chamber element 12 and the second end of the first interface element 14, and is used to define the second end of the unidirectional element 31, so as to prevent the unidirectional element 31 from falling into the first chamber element 12.
The first limiting element 81 is a limiting frame, and is formed by a plurality of limiting connection strips and a first limiting baffle, wherein the limiting connection strips are arranged around the central axis of the first interface element 14 and fixedly connected with the inner wall of the container element 11, and the first limiting baffle is connected with the limiting connection strips and is used for shielding the second end of the unidirectional element 31.
Wherein, a plurality of limit connecting strips form a circular cavity, and the inner diameter of the circular cavity is the same as the outer diameter of the unidirectional element 31.
The cross section of the first limit baffle plate can be round or annular. In the case where the first limit stop has an annular cross section, the inner diameter of the first limit stop is smaller than the diameter of the unidirectional element 31.
Further, the limiting unit 80 further includes a second limiting element 82, where the second limiting element 82 is disposed at the first end of the container unit 10 and is used to limit the position of the first end of the unidirectional unit 30, so as to prevent the unidirectional unit 30 from falling off from the container unit 10.
Specifically, the first limiting element 81 is disposed inside the first end of the container element 11, i.e. the second end of the first interface element 14, and is used to define the first end of the unidirectional element 31, so as to prevent the unidirectional element 31 from falling off from the first interface element 14, or prevent the unidirectional element 31 from being too close to the first end of the first interface element 14.
The second limiting element 82 is a second limiting baffle, the cross section of which is annular, and the inner diameter of the second limiting baffle is smaller than the diameter of the unidirectional element 31.
Specifically, in the case where the stopper unit 80 includes only the first stopper member 81, the diameter of the one-way member 31 is larger than the inner diameter of the first end of the container member 11/the second end of the first interface member 14; in case the stop unit 80 comprises a first stop element 81 and a second stop element 82, the diameter of the unidirectional element 31 is equal to the inner diameter of the first end of the container element 11/the second end of the first interface element 14.
The use method of the present invention is as follows, and the limiting unit 80 includes a first limiting element 81 and a second limiting element 82 as an example for explanation:
the pressure control member 61 is activated to make the initial pressure 3 to 5mmHg, such as 60mmHg, higher than the intraocular pressure of the patient;
the pressure control member 61 applies pressure to the second chamber member 13 through the communication member 62 and transmits the pressure to the first chamber member 12;
under the action of the pressure control element 61, the unidirectional element 31 enters the interior of the first interface element 14 and is positioned by the second stop element 82 to close the second end of the first interface element 14, as shown in fig. 15;
the physician punctures the puncturing element 22 into the eyeball of the patient, and as the pressure of the first chamber element 12 is larger than the intraocular pressure of the patient, the intraocular pressure of the patient does not suddenly drop, and aqueous humor does not enter the first chamber element 12;
The pressure control member 61 gradually reduces the pressure supplied to the second chamber member 13 so that the pressure of the first chamber member 12 gradually reduces from 60mmHg to 59mmHg to 58mmHg to 57mmHg until the pressure of the first chamber member 12 is the same as the intraocular pressure (anterior chamber pressure), at which time the one-way member 31 is detached from the first interface member 14 and is defined by the first limiting member 81, exposing the second end of the first interface member 14, as shown in fig. 16;
aqueous humor enters the first chamber element 12 from the puncturing element 22, the joint element 21 and the first interface element 14, contacts with the second color indicating element 72, changes the color of the aqueous humor, and a doctor can quickly judge whether inflammation is heavy or light according to the color of the aqueous humor;
when the intraocular pressure is the same as the pressure of the first chamber element 12, the unidirectional element 31 again closes the second end of the first interface element 14;
the above steps are repeated until the pressure (intraocular pressure) displayed by the display element 63 meets the treatment standard;
removing the penetrating member 22 from the anterior chamber and ending the treatment;
the sealing member 51 is separated from the second interface member 15, and the container unit 10 and the puncture unit 20 may be discarded to a point of waste medical recovery, and the sealing unit 50 and the pressure control unit 60 may be reused.
Example 3
This embodiment is a modified embodiment of embodiments 1 to 2.
As shown in fig. 17, 2 or 11, an anterior chamber puncturing device includes a container unit 10, a puncturing unit 20, a unidirectional unit 30, a blocking unit 40, a sealing unit 50, a pressure control unit 60, an indicating unit 70, and a fixing unit 90. Wherein the puncture unit 20 is detachably arranged at the first end of the container unit 10 and is communicated with the first end of the container unit 10 for puncturing the anterior chamber of the eyeball of the patient; the unidirectional unit 30 is disposed inside the container unit 10 and closes or exposes a first end of the container unit 10; the blocking unit 40 is provided inside the container unit 10; the sealing unit 50 is disposed at the second end of the container unit 10, and is used for sealing the second end of the container unit 10; the pressure control unit 60 is detachably connected to the sealing unit 50, is communicated with the second end of the container unit 10 through the sealing unit 50, is used for providing pressure to the container unit 10 and displaying the pressure, and is used for controlling the plugging unit 40 to reciprocate between the first end of the container unit 10 and the second end of the container unit 10 so that the pressure between the first end of the container unit 10 and the plugging unit 40 is substantially the same as the pressure between the second end of the container unit 10 and the plugging unit 40, namely, the pressure balance is maintained; the indication unit 70 is provided inside the container unit 10 between the one-way unit 30 and the blocking unit 40, for being mixed with the aqueous humor to change the color of the aqueous humor in the case that the aqueous humor enters the container unit 10; the fixing unit 90 is detachably connected to the container unit 10 and is removably placed on the auricle of the patient for fixing the container unit 10.
The structures and connection relationships of the container unit 10, the puncture unit 20, the plugging unit 40, the sealing unit 50, and the pressure control unit 60 are substantially the same as those of embodiment 1, and the structures and connection relationships of the unidirectional unit 30 and the indication unit 70 are substantially the same as those of embodiment 1 or embodiment 2, and are not described herein.
As shown in fig. 18, the fixing unit 90 includes a first fixing member 91, a supporting member 92, and a second fixing member 93. Wherein the first fixing element 91 is detachably connected to the container unit 10; a first end of the support member 92 is connected to the first fixing member 91; a second fixation element 93 is coupled to the second end of the support element 92, the second fixation element 93 being adapted to be removably disposed on the pinna of the patient.
Specifically, the first fixing element 91 is detachably connected, e.g. nestably connected, snapped, to the outer edge of the container element 11.
In some embodiments, the support member 92 is an adjustable support rod, including a first support rod, a second support rod, a pressing locking block, and a plurality of locking holes, where the first support rod is connected to the first fixing member 91, the second support rod is connected to the second fixing member 93, the second end of the first support rod is provided with the pressing locking block, the first end of the second support rod is provided with the plurality of locking holes along its axial direction, the second end of the first support rod slides inside the second support rod, and the pressing locking block is locked with a locking hole to fix the height of the support member 92, so as to be suitable for different patients.
In some of these embodiments, the first securing element 91 is a securing ring for snap-engagement with the container element 11.
In some of these embodiments, the second fixation element 93 is a fixation ring for snap-engagement to the pinna of the patient.
The application method of the invention is as follows:
the first fixing element 91 is clamped with the container element 11;
the pressure control member 61 is activated to make the initial pressure 3 to 5mmHg, such as 60mmHg, higher than the intraocular pressure of the patient;
the pressure control member 61 applies pressure to the second chamber member 13 through the communication member 62 and transmits the pressure to the first chamber member 12;
under the action of the pressure control element 61, the unidirectional element 31 closes the second end of the first interface element 14;
the physician punctures the puncturing element 22 into the eyeball of the patient, and as the pressure of the first chamber element 12 is larger than the intraocular pressure of the patient, the intraocular pressure of the patient does not suddenly drop, and aqueous humor does not enter the first chamber element 12;
clamping the second fixing element 93 with the pinna of the patient;
the pressure control member 61 gradually decreases the pressure supplied to the second chamber member 13 so that the pressure of the first chamber member 12 gradually decreases from 60mmHg to 59mmHg to 58mmHg to 57mmHg until the pressure of the first chamber member 12 is the same as the intraocular pressure (anterior chamber pressure), at which time the unidirectional member 31 exposes the second end of the first interface member 14;
Aqueous humor enters the interior of the first chamber element 12 from the piercing element 22, the connector element 21, the first interface element 14 and contacts the first color-indicating element 71, the aqueous humor color changing;
when the intraocular pressure is the same as the pressure of the first chamber element 12, the unidirectional element 31 again closes the second end of the first interface element 14;
the above steps are repeated until the pressure (intraocular pressure) displayed by the display element 63 meets the treatment standard;
removing the penetrating member 22 from the anterior chamber and ending the treatment;
the sealing member 51 is separated from the second interface member 15, and the container unit 10 and the puncture unit 20 may be discarded to a point of waste medical recovery, and the sealing unit 50 and the pressure control unit 60 may be reused.
An advantage of this embodiment is that the container unit can be fixed to the pinna of the patient by means of the fixing unit, thereby reducing the time for the operator to hold the device stationary. The device can be used for reducing the sudden movement of the device caused by the shake of hands or the distraction of the operator, thereby causing the damage to the intraocular structure of the patient.
The foregoing description is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, and it will be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included within the scope of the present invention.
Claims (8)
1. An anterior chamber puncturing device, comprising:
a container unit;
the puncture unit is communicated with the first end of the container unit and is used for puncturing into the anterior chamber of the eyeball of the patient;
a unidirectional unit disposed inside the first end of the container unit and closing or exposing the first end of the container unit;
the plugging unit is arranged in the container unit;
a sealing unit disposed at a second end of the container unit;
a pressure control unit connected to the sealing unit for communicating with the second end of the container unit through the sealing unit and providing pressure to the container unit and displaying the pressure;
the indicating unit is arranged in the container unit and is positioned between the unidirectional unit and the plugging unit and used for being contacted and mixed with the aqueous humor to change the color of the aqueous humor;
wherein the container unit comprises:
a container element;
a first chamber element arranged inside the container element and located between the first end of the container element and the plugging unit, the inside of the first chamber element being provided with the indication unit;
A second chamber element disposed inside the container element and located between the second end of the container element and the occlusion unit and in communication with the pressure control unit;
a first interface element disposed at a first end of the container element and in communication with the first chamber element, the first end of the first interface element being provided with the piercing unit and the second end of the first interface element being provided with the unidirectional unit;
a second interface element disposed at a second end of the container element and in communication with the second chamber element, the second end of the second interface element being connected to the pressure control unit;
wherein the unidirectional unit comprises:
the unidirectional element is arranged at the first end of the container unit and is used for sealing or exposing the first end of the container unit under the action of the pressure control unit;
under the action of the pressure control unit, if the pressure of the first chamber element is greater than or equal to the pressure of the anterior chamber under the condition that the puncture unit punctures into the anterior chamber of the eyeball of the patient, the unidirectional unit seals the second end of the first interface element;
Under the action of the pressure control unit gradually reducing the pressure provided to the second chamber element, if the pressure of the first chamber element is smaller than the pressure of the anterior chamber, the unidirectional unit exposes the second end of the first interface element, so that the anterior chamber water enters the first chamber element from the puncture unit and is in contact and mixed with the indication unit.
2. The anterior chamber puncturing device of claim 1, wherein the pressure control unit comprises:
a pressure control element disposed externally of the second end of the container unit;
a communication member, a second end of which communicates with the pressure control member, a first end of which communicates with a second end of the container unit through the sealing unit;
the display element is connected with the pressure control element and is used for displaying the pressure provided by the pressure control element to the container unit; and/or
The plugging unit comprises:
a sliding element provided inside the container unit for reciprocal movement between a first end of the pressure control unit acting on the container unit and a second end of the container unit;
The elastic element is arranged at the first end of the sliding element, and the outer wall of the elastic element is tightly attached to the inner wall of the container unit; and/or
The indication unit includes:
a first color indicating element disposed between the first end of the container unit and the occlusion unit for changing the color of aqueous humor when in contact with the aqueous humor; and/or
A second color indicating member disposed between the first end of the container unit and the blocking unit for changing the color of the aqueous humor in case of contact and reaction with the aqueous humor, for indicating a concentration range of a specific substance of the aqueous humor.
3. The anterior chamber puncturing device of any one of claims 1-2, further comprising:
the limiting unit is arranged at the first end of the container unit and used for limiting the position of the unidirectional unit so as to prevent the unidirectional unit from falling off from the container unit and/or falling into the container unit.
4. The anterior chamber puncturing device of claim 3, wherein the limiting unit comprises:
The first limiting element is arranged at the first end of the container unit and used for limiting the position of the second end of the unidirectional unit so as to prevent the unidirectional unit from falling into the container unit; and/or
The second limiting element is arranged at the first end of the container unit and used for limiting the position of the first end of the unidirectional unit so as to prevent the unidirectional unit from falling off from the container unit.
5. The anterior chamber puncturing device of any one of claims 1-2, further comprising:
and the fixing unit is detachably connected with the container unit and is removably placed on the auricle of the patient and used for fixing the container unit.
6. The anterior chamber puncturing device of claim 5, wherein the fixation unit comprises:
a first fixing element detachably connected to the container unit;
a support element connected to the first fixing element;
a second fixation element coupled to the support element for removable placement on the pinna of the patient.
7. The atrial puncturing device as claimed in claim 3, further comprising:
and the fixing unit is detachably connected with the container unit and is removably placed on the auricle of the patient and used for fixing the container unit.
8. The anterior chamber puncturing device of claim 7, wherein the fixation unit comprises:
a first fixing element detachably connected to the container unit;
a support element connected to the first fixing element;
a second fixation element coupled to the support element for removable placement on the pinna of the patient.
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| CN202111183707.7A CN114099132B (en) | 2021-10-11 | 2021-10-11 | Anterior chamber puncture device |
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| CN202111183707.7A CN114099132B (en) | 2021-10-11 | 2021-10-11 | Anterior chamber puncture device |
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| CN114099132A (en) | 2022-03-01 |
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