CN114099132A - Anterior chamber puncture device - Google Patents
Anterior chamber puncture device Download PDFInfo
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- CN114099132A CN114099132A CN202111183707.7A CN202111183707A CN114099132A CN 114099132 A CN114099132 A CN 114099132A CN 202111183707 A CN202111183707 A CN 202111183707A CN 114099132 A CN114099132 A CN 114099132A
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- container
- pressure
- anterior chamber
- container unit
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- 210000002159 anterior chamber Anatomy 0.000 title claims abstract description 83
- 210000001742 aqueous humor Anatomy 0.000 claims abstract description 51
- 238000007789 sealing Methods 0.000 claims abstract description 51
- 210000005252 bulbus oculi Anatomy 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 230000000903 blocking effect Effects 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 21
- 230000009471 action Effects 0.000 claims description 17
- 230000008859 change Effects 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 3
- 230000004410 intraocular pressure Effects 0.000 abstract description 59
- 230000000149 penetrating effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
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- 238000000034 method Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 208000010412 Glaucoma Diseases 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 2
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- 238000000576 coating method Methods 0.000 description 2
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- 230000004054 inflammatory process Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 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
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 210000003161 choroid Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001508 eye Anatomy 0.000 description 1
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- 210000003128 head Anatomy 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
- 201000003142 neovascular glaucoma Diseases 0.000 description 1
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Images
Classifications
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- 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 one-way unit, a plugging unit, a sealing unit, a pressure control unit and an indicating unit, wherein the pressure control unit gradually reduces the pressure of the container unit, and aqueous humor enters the container unit and is in contact with and mixed with the indicating 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 when the puncture unit penetrates into the eyeball, so that sudden drop of the intraocular pressure 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 one-way unit is opened, aqueous humor enters the container unit, and the steps are repeated continuously to enable the intraocular pressure to be slowly reduced; the pressure control unit reflects the intraocular pressure in real time, and the puncture device can be pulled out to finish the operation when the intraocular pressure reaches an ideal value, so that the complications caused by repeated operation or too low intraocular pressure due to high intraocular pressure are avoided; the color of the indicating unit can be changed after the indicating unit is contacted with the aqueous humor, so that an operator can observe the aqueous humor conveniently.
Description
Technical Field
The invention relates to the technical field of eye treatment instruments, in particular to an anterior chamber puncture device.
Background
In patients with acute angle glaucoma or neovascular glaucoma, the intraocular pressure is typically greater than 50mmHg, and an anterior chamber puncture is required to drain the aqueous humor and lower the intraocular pressure.
In clinical practice, physicians typically use 1ml syringes for anterior chamber punctures. When the injector is punctured into an eyeball, intraocular pressure drops suddenly, and a series of complications such as hemorrhage, choroid separation and the like are easily caused. Clinically, there is a lack of an anterior chamber puncture device that can achieve a gentle drop in intraocular pressure. Meanwhile, the intraocular pressure cannot be monitored in real time, whether aqueous humor with a proper volume is discharged or not cannot be judged during puncturing, whether the intraocular pressure reaches an ideal level or not is difficult to judge when the needle head is pulled out to finish the operation. Therefore, after the conventional anterior chamber puncture, the intraocular pressure needs to be measured again, and if the intraocular pressure is high, the intraocular pressure needs to be punctured 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 is concerned too much with the aqueous humor in the syringe, it may cause distraction, and the puncture needle may move to damage the intraocular structure.
At present, no effective solution is provided aiming at the problems that the intraocular pressure can not be slowly reduced, the intraocular pressure can not be monitored in real time, the aqueous humor is difficult to observe and the like in the related technology.
Disclosure of Invention
The invention aims to provide an anterior chamber puncture device aiming at the defects in the prior art, and aims to solve the problems that the intraocular pressure cannot be slowly reduced, cannot be monitored in real time to judge when to finish operation, is difficult to observe aqueous humor and the like in the related art.
In order to achieve the purpose, the invention adopts the technical scheme that:
an anterior chamber puncture device comprising:
a container unit;
a puncture unit in communication with the first end of the container unit for puncturing into an anterior chamber of an eyeball of a patient;
a one-way 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;
the pressure control unit is connected with the sealing unit and is used for communicating with the second end of the container unit through the sealing unit and providing pressure for the container unit and displaying the pressure;
an indicating unit disposed inside the container unit and between the one-way unit and the blocking unit, for mixing in contact with anterior chamber water to change the color of the anterior chamber water;
wherein, under the action of the pressure control unit, if the pressure of the container unit between the one-way unit and the blocking unit is greater than or equal to the pressure of the anterior chamber, the one-way unit closes the first end of the container unit under the condition that the puncture unit punctures into the anterior chamber of the eyeball of the patient;
under the action of the pressure control unit gradually reducing the pressure supplied to the container unit, if the pressure of the container unit between the one-way unit and the blocking unit is smaller than the pressure of the anterior chamber, the one-way unit exposes the first end of the container unit, so that anterior chamber water enters the container unit from the puncture unit and is in contact mixing with the indicating unit.
In some of these embodiments, the container unit comprises:
a container member;
a first chamber element disposed inside the container element and between the first end of the container element and the plugging unit, the indication unit being disposed inside the first chamber element;
a second chamber element disposed inside the container element, between the second end of the container element and the blocking unit, and communicating 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 having the puncture unit disposed thereon, the second end of the first interface element having the unidirectional unit disposed thereon;
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, 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, the one-way unit closes the second end of the first interface element under the condition that the puncture unit punctures into the anterior chamber of the eyeball of the patient;
under the action of the pressure control unit gradually reducing the pressure supplied to the second chamber element, if the pressure of the first chamber element is lower than the pressure of the anterior chamber, the one-way unit exposes the second end of the first interface element, so that anterior chamber water enters the first chamber element from the puncture unit and is mixed with the indication unit in a contact manner.
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 puncture unit comprises:
a connector element removably connected to the first end of the container unit;
a piercing element disposed at the first end of the connector element and in communication with the connector element.
In some of these embodiments, the unidirectional unit comprises:
and the unidirectional element is arranged at the first end of the container unit and used for closing 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 containment unit.
In some of these embodiments, the shape of the unidirectional unit is the same as the shape of the first end of the container unit.
In some of these embodiments, the projected area of the one-way element is equal to or greater than the projected area of the first end of the container unit.
In some of these embodiments, the shape of the one-way element is the same as the shape of the first end of the container unit.
In some of these embodiments, the occlusion unit comprises:
a sliding element disposed inside the container unit for reciprocating movement between a first end of the container unit and a second end of the container unit upon action of the pressure control unit.
In some of these embodiments, the occlusion unit further comprises:
and 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;
a through-hole element disposed through the sealing element, connected with the pressure control unit.
In some of these embodiments, the pressure control unit comprises:
a pressure control element disposed outside of the second end of the container unit;
a communication member having a second end communicating with the pressure control member, the first end of the communication member communicating with the 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.
In some of these embodiments, the pressure control unit further comprises:
and the key element is connected with the pressure control element and is 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 a color of anterior chamber water upon contact with the anterior chamber water; or
A second color indicating element disposed between the first end of the container unit and the blocking unit for changing a color of the anterior aqueous humor for indicating a concentration range of a specific substance of the anterior aqueous humor in a case of contact and reaction with the anterior 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 one-way unit and preventing the one-way unit from falling off from and/or into the container unit.
In some of these embodiments, 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 one-way unit and preventing the one-way unit from falling into the container unit.
In some of these embodiments, the limiting unit comprises:
and 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 one-way unit and preventing the one-way unit from falling off from the container unit.
In some of these embodiments, further comprising;
a fixing unit detachably connected with the container unit, the fixing unit being removably placed on a pinna of a patient for fixing the container unit.
In some of these embodiments, the fixing unit comprises:
a first securing element removably connected with the container unit;
a support element connected with the first fixation element;
a second fixation element coupled to the support element for removable placement on a pinna of a patient.
By adopting the technical scheme, 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 when the puncture unit punctures an eyeball, the pressure of the container unit is larger than intraocular pressure, so that sudden drop of intraocular pressure 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 one-way unit is exposed out of the aqueous humor channel, aqueous humor enters the container unit, the intraocular pressure is reduced, the steps are continuously repeated to enable the intraocular pressure to be slowly reduced, and the pressure control unit displays the intraocular pressure in real time to enable the intraocular pressure to reach an ideal level; the pressure control unit reflects the intraocular pressure level in real time, so that the puncture device can be pulled out timely to finish the 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, and the cost is reduced.
Drawings
FIG. 1 is a schematic view (one) of an anterior chamber puncture device according to an embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of an anterior chamber puncture device according to an embodiment of the invention;
FIG. 3 is a schematic view 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 cell according to an embodiment of the present invention;
FIG. 7 is a schematic view of a plugging unit according to an embodiment of the present 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) of the use state of the anterior chamber puncturing device according to the embodiment of the present invention;
FIG. 11 is a schematic view (two) showing a state of use of the anterior chamber puncturing device according to the embodiment of the present invention;
figure 12 is a schematic view of an anterior chamber puncture device according to an embodiment of the invention;
figure 13 is a partial cross-sectional view of a anterior chamber puncture device according to an embodiment of the invention;
FIG. 14 is a schematic view of a spacing unit according to an embodiment of the invention;
FIG. 15 is a schematic view (III) showing a state of use of the anterior chamber puncturing apparatus according to 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;
figure 17 is a schematic view (iii) of an anterior chamber puncture device according to an embodiment of the invention;
fig. 18 is a schematic view of a fixing unit of the anterior chamber puncturing device according to an embodiment of the present invention.
Wherein the reference numerals are: 10. a container unit; 11. a container member; 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 element; 52. a through-hole element;
60. a pressure control unit; 61. a pressure control element; 62. a communication element; 63. a display element; 64. a key element;
70. an indicating unit; 71. a first color indicating element; 72. a second color indicating element;
80. a limiting unit; 81. a first spacing 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 technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following 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, is an anterior chamber puncturing device, comprising 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 a first end of the container unit 10, and communicates with the first end of the container unit 10, for puncturing into an anterior chamber of an eyeball of a patient; the one-way unit 30 is disposed inside the container unit 10 and closes or exposes a first end of the container unit 10; the plugging 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 with 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 basically 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 indicating unit 70 is provided inside the container unit 10 between the unidirectional unit 30 and the blocking unit 40, and is used to contact and mix with the anterior chamber water to change the color of the anterior chamber water in the case where the anterior chamber water enters the container unit 10.
The working principle is as follows:
in the case where the puncture unit 20 is punctured into the anterior chamber of the eyeball of the patient, if the pressure of the container unit 10 between the one-way unit 30 and the blocking unit 40 is equal to or greater than the pressure of the anterior chamber under the action of the pressure control unit 60, the one-way unit 30 closes the first end of the container unit 10 so that anterior chamber water cannot enter the interior of the container unit 10 through the puncture unit 20;
under the effect of the pressure control unit 60 gradually reducing the pressure supplied to the container unit 10, if the pressure of the container unit 10 between the unidirectional unit 30 and the blocking unit 40 is less than the pressure of the anterior chamber, the unidirectional unit 30 exposes the first end of the container unit 10, so that the aqueous humor enters the interior of the container unit 10 from the puncturing unit 20 and is mixed in contact with the indicating unit 70.
As shown in fig. 3-4, the container unit 10 includes a container member 11, a first chamber member 12, a second chamber member 13, a first interface member 14, and a second interface member 15. Wherein, the container element 11 is internally provided with a unidirectional unit 30, a plugging 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, and an indicating unit 70 is arranged inside the first chamber element; the second chamber element 13 is disposed inside the container element 11, between the second end of the container element 11 and the blocking unit 40, and communicates with the pressure control unit 60; the first interface element 14 is arranged at a first end of the container element 11 and communicates with the first chamber element 12, a first end of which is detachably connected to the puncture unit 20 and a second end of which is provided with the one-way unit 30; the second interface member 15 is disposed at a second end of the container member 11 and communicates with the second chamber member 13, and a first end thereof is detachably disposed with the sealing unit 50 and a second end thereof is connected with 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 member 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 disposed inside the container element 11; in the case where the closing unit 40 is provided inside the container member 11, the first chamber member 12 and the second chamber member 13 do not communicate.
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 that the pressure of the second chamber element 13 is equal to or greater than the pressure of the first chamber element 12, the plugging unit 40 moves from the second end of the container element 11 to the first end of the container element 11, and the one-way unit 30 always closes the second end of the first interface element 14; in the case where the pressure of the second chamber element 13 is lower than the pressure of the first chamber element 12, the plugging unit 40 moves from the first end of the container element 11 to the second end of the container element 11, and the unidirectional unit 30 exposes the second end of the first interface element 14, so that the puncture unit 20 communicates with the first chamber element 12.
Further, the container unit 10 further includes a volume scale member 16, and the volume scale member 16 is provided on an outer wall of the container member 11 for indicating the volume of the aqueous humor.
As shown in fig. 5, the puncture unit 20 includes a joint member 21 and a puncture member 22. Wherein the second end of the connector element 21 is connected to the first end of the container unit 10 and the first end of the connector 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 piercing element 22 is a piercing needle.
With the one-way unit 30 exposing the second end of the first interface member 14, aqueous humor passes through the puncturing member 22, the connector member 21, the first interface member 14 and into the interior of the first chamber member 12.
As shown in fig. 6, the unidirectional unit 30 includes a unidirectional element 31 and a connection element 32. Wherein, the one-way element 31 is arranged inside the first end of the container unit 10 for closing or exposing the first end of the container unit 10; the connection member 32 is disposed at the first end of the one-way member 31 and connected to the inner wall of the first end of the container unit 10 to prevent the one-way member 31 from being separated from the container unit 10.
Specifically, the one-way element 31 is disposed at a connecting position of the container element 11 and the first interface element 14, that is, a connecting position of a first end of the container element 11 and a second end of the first interface element 14, that is, disposed 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 member 32 is connected to the inner wall of the first end of the container member 11.
In some of these embodiments, the unidirectional element 31 is a flap made of a material that deforms less elastically, such as rigid plastic, rubber, etc.
In some of these embodiments, the connecting elements 32 are posts or a relatively high-tack adhesive layer (e.g., 502 glue layer).
In some of these embodiments, the projected area of the one-way element 31 is equal to or greater than 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 one-way element 31 is circular, the diameter of the one-way element 31 is larger than or equal to 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 one-way element 31 is non-circular (e.g., rectangular), the minimum width of the one-way element 31 is greater than or equal to the inner diameter of the first end of the container member 11/the second end of the first interface member 14.
As shown in fig. 7, the plugging 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 under the action of the pressure control unit 60; the elastic member 42 is disposed at the first end of the sliding member 41, and the outer wall thereof is in close contact with the inner wall of the container unit 10 for making the first end of the container unit 10 not communicated with the second end of the container unit 10.
Specifically, the slide member 41 is provided inside the container member 11, and the elastic member 42 and the slide member 41 divide the inside of the container member 11 into the first chamber member 12 and the second chamber member 13.
Wherein the outer diameter of the sliding member 41 is equal to the inner diameter of the container member 11 (inner diameter of the first end of the non-container member 11)
In some of these embodiments, the outer diameter of the resilient member 42 is equal to or greater than the inner diameter of the container member 11 (not the inner diameter of the first end of the container member 11). Wherein, the ratio of the outer diameter of the elastic element 42 to the inner diameter of the container element 11 is (1-1.1): 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 and the elastic element 42 are connected in a snap-in manner, so that the sliding element 41 and the elastic element 42 are prevented from being separated during the movement.
In some of these embodiments, the elastic element 42 is made of rubber or silicone material, and has a certain elastic deformation, and can be 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 with each other.
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 provided to the second end of the container unit 10 and seals the second end of the container unit 10; the through-hole member 52 is disposed 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.
Specifically, the sealing member 51 is detachably disposed at the second end of the container member 11, i.e., the position where the second end of the second chamber member 13 is connected to the first end of the second interface member 15, for sealing the second end of the second chamber member 13/the first end of the second interface member 15.
In some of these embodiments, the outer diameter of the sealing member 51 is equal to or greater than the inner diameter of the second chamber member 13 (the inner diameter of the second end of the container member 11). Wherein the ratio of the outer diameter of the sealing element 51 to the inner diameter of the second chamber element 13 is (1-1.1): 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 embodiments, the elastic element 42 is made of rubber or silicone material, and has a certain elastic deformation, and can be in 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 element 61 is disposed outside the second end of the container unit 10 for adjusting the pressure of the container unit 10; the communicating 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 for the pressure control member 61 and the second end of the container unit 10; the display unit 63 is connected to the pressure control unit 61 for displaying the pressure supplied from the pressure control unit 61 to the container unit 10.
Specifically, the pressure control member 61 is provided outside the second end of the container member 11 for adjusting the pressure of the second chamber member 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 path of the pressure control member 61 and the second chamber member 13 so that the pressure control member 61 supplies gas to the second chamber member 13 or draws 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 pass-through 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 (1-1.2): 1. preferably, the ratio of the outer diameter of the communicating member 62 to the inner diameter of the through-hole member 52 is (1-1.1): 1. more preferably, the ratio of the outer diameter of the communicating 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, and the key element 64 is connected to the pressure control element 61 and is used for sending control instructions to the pressure control element 61, including but not limited to switching, pressure adjustment up, pressure adjustment down, activation/function, and the like.
Wherein, the key element 64 is arranged on the outer surface of the pressure control element 61.
The indicating unit 70 includes a first color indicating element 71, and the first color indicating element 71 is disposed between the first end of the container unit 10 and the blocking unit 40, and is used for changing the color of the aqueous humor from colorless transparency to a certain color (e.g., red, blue) in case of contact with the aqueous humor.
Wherein the first color indicating member 71 does not react with the aqueous humor.
In particular, the first color indicating member 71 is disposed between the first end of the container member 11 and the resilient member 42, i.e. inside the first chamber member 12.
In some of these embodiments, the first color indicating member 71 is a powder or liquid agent that is disposed in a volume within the interior of the first chamber member 12.
In some of these embodiments, the first color indicator element 71 is a colored coating disposed over the inner wall of the first chamber element 12.
The using method of the invention is as follows:
starting the pressure control element 61 to make the initial pressure be 3-5 mmHg, such as 60mmHg, greater 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 one-way element 31 closes the second end of the first interface element 14, as shown in fig. 10;
the doctor pierces the penetrating member 22 into the eyeball of the patient, and since the pressure of the first chamber member 12 is greater than the intraocular pressure of the patient, the intraocular pressure of the patient does not drop suddenly and aqueous humor does not enter the first chamber member 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 decreases, 60mmHg → 59mmHg → 58mmHg → 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;
the aqueous humor enters the interior of the first chamber member 12 from the piercing member 22, the connector member 21, the first interface member 14, and comes into contact with the first color indicating member 71, and the color of the aqueous humor changes;
when the intraocular pressure is the same as the pressure of the first chamber element 12, the one-way element 31 closes the second end of the first interface element 14 again;
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 element 51 is separated from the second interface element 15 and the container unit 10 and the puncture unit 20 are discarded to the point of disposal medical recovery, and the sealing unit 50 and the pressure control unit 60 can be reused.
The invention has the advantages that 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 intraocular pressure at the moment when the puncture unit punctures the eyeball, so that sudden drop of 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 one-way unit is exposed 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 slowly reduced, the intraocular pressure is displayed in real time by the pressure control unit, and therefore the puncture device can be timely 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, and the cost is reduced.
Example 2
This embodiment is a modification 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 unidirectional 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 a first end of the container unit 10, and communicates with the first end of the container unit 10, for puncturing into an anterior chamber of an eyeball of a patient; the one-way unit 30 is disposed inside the container unit 10 and closes or exposes a first end of the container unit 10; the plugging 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 with 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 basically 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; an indicating unit 70 is provided inside the container unit 10 between the unidirectional unit 30 and the blocking unit 40 for mixing in contact with the anterior chamber water to change the color of the anterior chamber water in the case where the anterior chamber water 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 one-way unit 30 and preventing the one-way unit 30 from falling off the container unit 10 and/or falling into the container unit 10.
The structures and the connection relationships of the container unit 10, the puncturing 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 are not described herein again.
The unidirectional unit 30 comprises a unidirectional element 31, the unidirectional element 31 is slidably arranged 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.
In particular, in some of the embodiments, the unidirectional element 31 is a flap made of a material with poor elastic deformation, such as rigid plastic, rubber, etc.
In some of these embodiments, the projected area of the one-way element 31 is equal to or greater than 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 one-way element 31 is circular and the diameter of the one-way element 31 is larger than or equal to the inner diameter of the first end of the container element 11/the second end of the first interface element 14.
The indicating unit 70 includes a second color indicating member 72, and the second color indicating member 72 is disposed between the first end of the container unit 10 and the blocking unit 40, and is used for reacting with a specific substance of the aqueous humor and changing the color of the aqueous humor to change the color of the aqueous humor from colorless transparency to a certain color (e.g., milky white, yellow, light blue, light green, dark green, red).
In particular, the second color indicating element 72 is arranged 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 agent that is disposed in a volume within the interior of the first chamber member 12.
In some of these embodiments, the second color indicating element 72 is a colored 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 the aqueous humor and determining the severity of inflammation based on the color of the aqueous humor.
As shown in fig. 14, the stopper unit 80 includes a first stopper member 81, and the first stopper member 81 is provided at a first end of the container unit 10 to define a position of a second end of the unidirectional unit 30 to prevent the unidirectional unit 30 from falling into the container unit 10.
Specifically, a first stopper element 81 is provided at a position of connection of the first end of the container element 11, i.e., the first end of the first chamber element 12 and the second end of the first interface element 14, for limiting the second end of the one-way element 31, and preventing the one-way element 31 from falling into the first chamber element 12.
Wherein, first spacing component 81 is spacing frame, comprises a plurality of spacing connecting strips and a first limit baffle, and a plurality of spacing connecting strips use the axis of first interface component 14 as the center to encircle the setting and with the inner wall fixed connection of container component 11, first limit baffle is connected with a plurality of spacing connecting strips for shelter from the second end of one-way component 31.
Wherein, a plurality of spacing connecting strips form a circular cavity, and the inner diameter of the circular cavity is the same as the outer diameter of the one-way element 31.
The cross section of the first limit baffle can be circular 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 comprises a second limiting element 82, and the second limiting element 82 is disposed at the first end of the container unit 10 and is used for limiting the position of the first end of the one-way unit 30 and preventing the one-way unit 30 from falling off the container unit 10.
In particular, the first stop element 81 is arranged inside the first end of the container element 11, i.e. the second end of the first interface element 14, for limiting the first end of the unidirectional element 31, preventing the unidirectional element 31 from falling off the first interface element 14, or preventing the unidirectional element 31 from being too close to the first end of the first interface element 14.
Wherein, the second limit element 82 is a second limit baffle, the cross section of which is annular, and the inner diameter of the second limit baffle is smaller than the diameter of the one-way element 31.
In particular, in the case where the stop unit 80 comprises only the first stop element 81, the diameter of the unidirectional element 31 is greater than the inner diameter of the first end of the container element 11/of the second end of the first interface element 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 described as follows, taking the example that the limiting unit 80 comprises the first limiting element 81 and the second limiting element 82:
starting the pressure control element 61 to make the initial pressure be 3-5 mmHg, such as 60mmHg, greater 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 one-way element 31 enters the interior of the first interface element 14 and is limited in position by the second limiting element 82 to close the second end of the first interface element 14, as shown in fig. 15;
the doctor pierces the penetrating member 22 into the eyeball of the patient, and since the pressure of the first chamber member 12 is greater than the intraocular pressure of the patient, the intraocular pressure of the patient does not drop suddenly and aqueous humor does not enter the first chamber member 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 decreases, 60mmHg → 59mmHg → 58mmHg → 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 falls off the first interface member 14 and is defined by the first stopper member 81, exposing the second end of the first interface member 14, as shown in fig. 16;
the aqueous humor enters the first chamber element 12 from the puncture element 22, the connector element 21 and the first interface element 14 and contacts the second color indicating element 72, the color of the aqueous humor is changed, and a doctor can quickly judge the weight of inflammation 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 one-way element 31 closes the second end of the first interface element 14 again;
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 element 51 is separated from the second interface element 15 and the container unit 10 and the puncture unit 20 are discarded to the point of disposal medical recovery, and the sealing unit 50 and the pressure control unit 60 can be reused.
Example 3
This embodiment is a modification of embodiments 1 to 2.
As shown in fig. 17, fig. 2, or fig. 11, an anterior chamber puncturing device includes a container unit 10, a puncturing unit 20, a unidirectional unit 30, an occluding 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 disposed at the first end of the container unit 10, and is communicated with the first end of the container unit 10, for puncturing into the anterior chamber of the eyeball of the patient; the one-way unit 30 is disposed inside the container unit 10 and closes or exposes a first end of the container unit 10; the plugging 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 with 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 basically 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; an indicating unit 70 is provided inside the container unit 10 between the unidirectional unit 30 and the blocking unit 40 for mixing in contact with the anterior chamber water to change the color of the anterior chamber water in the case where the anterior chamber water enters the container unit 10; the fixing unit 90 is detachably coupled to the container unit 10 and removably placed on the auricle of the patient for fixing the container unit 10.
The structures and the connection relationships of the container unit 10, the puncturing 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 the structures and the connection relationships of the unidirectional unit 30 and the indicating unit 70 are substantially the same as those of embodiment 1 or embodiment 2, and are not repeated 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 supporting member 92 is connected with the first fixing member 91; a second fixation element 93 is connected to a second end of the support element 92, the second fixation element 93 being adapted to be removably arranged to the pinna of the patient.
In particular, the first fixing element 91 is detachably connected, e.g. nestingly connected, snapped on, to the outer edge of the container element 11.
In some embodiments, the supporting member 92 is an adjustable supporting rod, and includes a first supporting rod, a second supporting rod, a pressing locking block, and a plurality of locking holes, the first supporting rod is connected to the first fixing member 91, the second supporting rod is connected to the second fixing member 93, the pressing locking block is disposed at the second end of the first supporting rod, the plurality of locking holes are disposed at the first end of the second supporting rod along the axial direction of the first supporting rod, the second end of the first supporting rod slides inside the second supporting rod, and the pressing locking block is connected to one of the locking holes in a locking manner, so as to fix the height of the supporting member 92, thereby being suitable for different patients.
In some of these embodiments, the first fixing element 91 is a fixing ring for snap-fitting with the container element 11.
In some of these embodiments, the second fixing element 93 is a fixing ring for snapping onto the pinna of the patient.
The using method of the invention is as follows:
clamping the first fixing element 91 to the container element 11;
starting the pressure control element 61 to make the initial pressure be 3-5 mmHg, such as 60mmHg, greater 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 one-way element 31 closes the second end of the first interface element 14;
the doctor pierces the penetrating member 22 into the eyeball of the patient, and since the pressure of the first chamber member 12 is greater than the intraocular pressure of the patient, the intraocular pressure of the patient does not drop suddenly and aqueous humor does not enter the first chamber member 12;
clamping the second fixing element 93 to the auricle of the patient;
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 decreases, 60mmHg → 59mmHg → 58mmHg → 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;
the aqueous humor enters the interior of the first chamber member 12 from the piercing member 22, the connector member 21, the first interface member 14, and comes into contact with the first color indicating member 71, and the color of the aqueous humor changes;
when the intraocular pressure is the same as the pressure of the first chamber element 12, the one-way element 31 closes the second end of the first interface element 14 again;
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 element 51 is separated from the second interface element 15 and the container unit 10 and the puncture unit 20 are discarded to the point of disposal medical recovery, and the sealing unit 50 and the pressure control unit 60 can 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 still. The device reduces the damage to the intraocular structure of the patient caused by sudden movement of the device due to shaking hands or inattention of the operator.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. An anterior chamber puncture device, comprising:
a container unit;
a puncture unit in communication with the first end of the container unit for puncturing into an anterior chamber of an eyeball of a patient;
a one-way 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;
the pressure control unit is connected with the sealing unit and is used for communicating with the second end of the container unit through the sealing unit and providing pressure for the container unit and displaying the pressure;
an indicating unit disposed inside the container unit and between the one-way unit and the blocking unit, for mixing in contact with anterior chamber water to change the color of the anterior chamber water;
wherein, under the action of the pressure control unit, if the pressure of the container unit between the one-way unit and the blocking unit is greater than or equal to the pressure of the anterior chamber, the one-way unit closes the first end of the container unit under the condition that the puncture unit punctures into the anterior chamber of the eyeball of the patient;
under the action of the pressure control unit gradually reducing the pressure supplied to the container unit, if the pressure of the container unit between the one-way unit and the blocking unit is smaller than the pressure of the anterior chamber, the one-way unit exposes the first end of the container unit, so that anterior chamber water enters the container unit from the puncture unit and is in contact mixing with the indicating unit.
2. The anterior chamber puncture device according to claim 1, wherein the container unit comprises:
a container member;
a first chamber element disposed inside the container element and between the first end of the container element and the plugging unit, the indication unit being disposed inside the first chamber element;
a second chamber element disposed inside the container element, between the second end of the container element and the blocking unit, and communicating 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 having the puncture unit disposed thereon, the second end of the first interface element having the unidirectional unit disposed thereon;
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, 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, the one-way unit closes the second end of the first interface element under the condition that the puncture unit punctures into the anterior chamber of the eyeball of the patient;
under the action of the pressure control unit gradually reducing the pressure supplied to the second chamber element, if the pressure of the first chamber element is lower than the pressure of the anterior chamber, the one-way unit exposes the second end of the first interface element, so that anterior chamber water enters the first chamber element from the puncture unit and is mixed with the indication unit in a contact manner.
3. The anterior chamber puncture device according to claim 1 or 2, wherein the pressure control unit comprises:
a pressure control element disposed outside of the second end of the container unit;
a communication member having a second end communicating with the pressure control member, the first end of the communication member communicating with the 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.
4. The anterior chamber puncture device according to any one of claims 1 to 3, wherein the unidirectional unit comprises:
and the unidirectional element is arranged at the first end of the container unit and used for closing or exposing the first end of the container unit under the action of the pressure control unit.
5. The anterior chamber puncture device according to any one of claims 1 to 4, wherein the occlusion unit comprises:
a sliding element disposed inside the container unit for reciprocating movement between a first end of the container unit and a second end of the container unit upon action of the pressure control unit;
and 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.
6. The anterior chamber puncturing device according to any one of claims 1 to 5, wherein the indicating unit comprises:
a first color indicating element disposed between the first end of the container unit and the occlusion unit for changing a color of anterior chamber water upon contact with the anterior chamber water; and/or
A second color indicating element disposed between the first end of the container unit and the blocking unit for changing a color of the anterior aqueous humor for indicating a concentration range of a specific substance of the anterior aqueous humor in a case of contact and reaction with the anterior aqueous humor.
7. The anterior chamber puncture device according to any one of claims 1 to 6, further comprising:
the limiting unit is arranged at the first end of the container unit and used for limiting the position of the one-way unit and preventing the one-way unit from falling off from and/or into the container unit.
8. The anterior chamber puncturing device of claim 7, 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 one-way unit and preventing the one-way unit from falling into the container unit; and/or
And 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 one-way unit and preventing the one-way unit from falling off from the container unit.
9. The anterior chamber puncture device according to any one of claims 1 to 8, further comprising;
a fixing unit detachably connected with the container unit, the fixing unit being removably placed on a pinna of a patient for fixing the container unit.
10. The anterior chamber puncture device according to claim 9, wherein the fixing unit comprises:
a first securing element removably connected with the container unit;
a support element connected with the first fixation element;
a second fixation element coupled to the support element for removable placement on a pinna of a patient.
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| CN114099132B (en) | 2024-02-23 |
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