CN114376790B - Multipurpose anterior chamber puncture device with pressure monitoring function - Google Patents
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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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/16—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for measuring intraocular pressure, e.g. tonometers
-
- 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
- A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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Abstract
The invention discloses a multipurpose anterior chamber puncture device with a pressure monitoring function, which comprises an aqueous humor collecting assembly, a pressure measurement display module and a pressure/flow stepless micro-motion adjusting module which are sequentially connected from front to back. The aqueous humor collecting assembly is used for puncturing the cornea of an eyeball and collecting aqueous humor; the aqueous humor collecting component is provided with a scale for reading the release amount of aqueous humor; the pressure measurement display module is used for measuring and displaying the anterior chamber intraocular pressure in real time when the aqueous humor is collected by the aqueous humor collection assembly, and guiding the pressure relief operation process; the pressure/flow stepless inching adjusting module is used for adjusting the intraocular pressure and the flow velocity of the aqueous humor when the aqueous humor collecting assembly collects the aqueous humor. The multipurpose anterior chamber puncture device with the pressure monitoring function can realize quantitative collection of aqueous humor, real-time monitoring of intraocular pressure and control of release of intraocular pressure and outflow speed of aqueous humor.
Description
Technical Field
The invention relates to the technical field of ophthalmic medical equipment, in particular to a multipurpose anterior chamber puncture device with a pressure monitoring function.
Background
In order to reduce ocular pressure, an aqueous humor sampling analysis of ocular infections or other anterior chamber drainage therapy/anterior chamber irrigation is often required clinically.
Intraocular pressure (Intraocular pressure, IOP), also known as intraocular pressure, is the pressure of the contents of the eye against the inner wall of the eye. Intraocular pressure varies at various times of the day, but is generally maintained within a safe range. The normal eye pressure range of the normal person is 11-21 mmHg (1.47-2.79 kPa), so that the normal form of the eyeball is maintained, and the interface of each refractive medium is kept in a good refractive state. The contents of the eyeball include Aqueous humor (Aqueous humor), crystalline lens, vitreous body, among which Aqueous humor is the most influencing intraocular pressure. The aqueous humor is colorless transparent liquid, belongs to one of tissue fluids, is filled between the cornea and the iris of the anterior and posterior chamber, has the total volume of only 0.15-0.3 mL (about 0.25mL on average), and has the function of nourishing the iris, the cornea and the crystalline lens. The aqueous humor also has a certain refraction function, and forms an eyeball refraction system together with cornea, crystalline lens and vitreous body. Aqueous humor is continuously produced by the ciliary body, then enters the anterior chamber through the pupil, and then exits the eyeball through the trabecular meshwork at the anterior chamber angle into the blood circulation.
Aqueous humor has the function of maintaining intraocular pressure, and the internal pressure of the eye (intraocular pressure) depends on the total amount of aqueous humor. Normally, the generation and drainage of aqueous humor remains in a dynamic balance, i.e. the amount of aqueous humor generated and the amount of aqueous humor drained are equal over a period of time. If the aqueous humor is too much for some reason or the passage is blocked and not removed, the intraocular pressure is increased due to the increase of intraocular fluid, and the clinical condition of the intraocular pressure increase is glaucoma. When the glaucoma ocular hypertension drug is uncontrollable, the sharply rising ocular tension (. Gtoreq.50 mmHg) can make the visual field smaller and cause irreversible damage to the optic nerve. At this time, if the intraocular pressure cannot be controlled in time, the vision guiding function is drastically reduced or lost, and finally blindness is caused. For those patients who are unable to lower ocular pressure by medication, the anterior chamber puncture can effectively help them lower ocular pressure in a short time, protect visual function, and create opportunities for further treatment.
In addition, in glaucoma trabeculectomy procedures, anterior chamber puncture can be used to reduce intraocular pressure to reduce serious complications that may result from intraoperative ocular collapse. For acute central retinal artery occlusion, lowering ocular pressure with anterior chamber puncture can improve retinal perfusion and sometimes also allow arterial emboli to be flushed distally by blood flow.
In the diagnosis of certain ophthalmic diseases, it is often necessary to perform pathogen culture by aqueous sampling, and detection of cytology, pathogenic DNA, etc., to identify infectious, non-infectious uveitis and camouflage syndromes. Infection, autoimmune disease (the immune system of the patient attacks its own tissues), or other unknown factors can all lead to inflammation of the uvea, etc.
Diagnostic atrial puncture is applicable in the following cases: with the signs of microbial infection, there is an urgent need to determine the nature of the infection; the need to determine the etiology of ocular disorders; trace element analysis is needed to determine the nature of foreign matters in the eye or to know the metabolic status of certain elements in the eye; primary or metastatic tumors in the eye need to be diagnosed in aqueous humor cytology; other diagnostically interesting aqueous assays. In addition, anterior chamber puncture is often used in the treatment of fluid discharge in cases of chemical alkali burns of the eye, anterior chamber hematocele, and the like.
Anterior chamber irrigation is suitable for severe ocular chemical alkali burn and anterior chamber hematocele accompanied by ocular hypertension.
Despite the wide demand, there is currently a lack of specialized atrial puncturing devices in the clinic. The ophthalmologist can only use the insulin syringe (0.3 ml) with needle to puncture, decompress or flush the anterior chamber, this way lacks the real-time monitoring to the intraocular pressure, the speed and degree of the intraocular pressure decline, aqueous outflow are all controlled by doctor's experience, unable accurate quantitative control. In the anterior chamber drainage treatment and aqueous humor collection process, the operation is slightly careless, so that the injection needle can damage adjacent tissues such as cornea, iris or crystalline lens and the like; sudden drop in ocular pressure, rapid shallowing of the anterior chamber, or even disappearance of ocular pressure, which may cause damage to corneal endothelial cells and lens by contact of the iris and lens with the corneal endothelium, and sudden drop in ocular pressure may also cause other serious complications such as ciliary body detachment, explosive suprachoroidal hemorrhage, etc.; direct communication between the anterior chamber and the outside increases the chance of intraocular infection. When the experience of doctors is insufficient, misoperation is easy to occur, and excessive pressure relief or insufficient pressure relief is caused; sometimes even by repeated puncturing and tonometric measurements to achieve the desired tonometric value. Thus, on one hand, the operation time and labor intensity of doctors and nurses are increased, and the pain of patients is prolonged; on the other hand, the risk of surgical complications and surgical infections is increased.
The anterior chamber puncture needle in the prior art still has a plurality of problems when in use, such as easy intraocular infection; since the intraocular pressure of the patient is different from each other, the difference is large, and thus it is difficult to precisely control the speed and degree of the intraocular pressure reduction and the collection amount of aqueous humor.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a multipurpose anterior chamber puncture device with pressure monitoring function, which can realize quantitative collection of aqueous humor, real-time monitoring of intraocular pressure, and control of release of intraocular pressure and outflow rate of aqueous humor.
The multipurpose anterior chamber puncture device with the pressure monitoring function comprises an aqueous humor collecting assembly, a pressure measurement display module and a pressure/flow stepless micro-motion adjusting module which are sequentially connected from front to back; wherein,,
the aqueous humor collecting component is used for puncturing the cornea of an eyeball to collect aqueous humor; the aqueous humor collecting component is provided with a scale for reading the release amount of aqueous humor;
the pressure measurement display module is used for measuring and displaying the anterior chamber intraocular pressure in real time when the aqueous humor is collected by the aqueous humor collection assembly, and guiding the pressure relief operation process;
the pressure/flow stepless inching adjusting module is used for adjusting the intraocular pressure and the aqueous humor releasing flow rate when the aqueous humor collecting assembly collects aqueous humor.
The multipurpose anterior chamber puncture device with the pressure monitoring function has the advantages that firstly, the real-time accurate measurement can be carried out on the aqueous humor collection amount/release amount, the intraocular pressure is ensured to be within a safe range, and meanwhile, the problem of excessive or insufficient aqueous humor collection/release is avoided; secondly, the pressure relief operation process can be carried out by observing the intraocular pressure value measured by the pressure measurement display module 2 in real time, so that the dependence on the experience of doctors in the puncture process is reduced, and the situation of excessive pressure relief or insufficient pressure relief is avoided; thirdly, the intraocular pressure and the aqueous humor release speed can be regulated, so that the situations of corneal endothelial cell injury, lens injury, ciliary body separation, explosive suprachoroidal hemorrhage and the like caused by contact between the iris and the lens and the corneal endothelium are avoided, wherein the intraocular pressure suddenly drops, the anterior chamber rapidly becomes shallow or even disappears in the aqueous humor collecting or releasing process; fourth, compact structure is fit for the single hand and samples, the operation of blowing.
According to some embodiments of the invention, the aqueous humor collecting assembly comprises a puncture needle, a needle fixed connection protecting wing, an aqueous humor collecting hose and a first connector which are sequentially connected from front to back; wherein the puncture needle head is used for puncturing the cornea of the eyeball; the needle head is fixedly connected with the protective wing and is used for positioning the puncture needle head when aqueous humor is collected; the aqueous humor collecting hose is used for collecting and storing aqueous humor, and the scale is arranged on the aqueous humor collecting hose; the first connector is detachably connected with the pressure measurement display module, and a hydrophobic and breathable film is arranged in the first connector.
According to some embodiments of the invention, the aqueous humor collecting assembly further comprises a cap that fits over the needle head.
According to some embodiments of the invention, the aqueous humor collecting assembly further comprises an end cap that caps the rear end of the first connector when the first connector is not connected to the pressure measurement display module.
According to some embodiments of the invention, the first connector is a first luer type female connector; the front end of the pressure measurement display module is provided with a first Lu Erxing male connector; the first luer female connector is adapted and hermetically connected with the first Lu Erxing male connector.
According to some embodiments of the invention, a second luer type female connector is provided at the rear end of the pressure measurement display module, and a second Lu Erxing male connector is provided at the front end of the pressure/flow stepless micro-motion adjustment module, and the second luer type female connector is adapted to and hermetically connected with the second Lu Erxing male connector.
According to some embodiments of the invention, the pressure measurement display module is provided with a buzzer for giving an alarm when the current atrial intraocular pressure is abnormal.
According to some embodiments of the invention, the pressure/flow stepless micro-motion adjusting module comprises a needle cylinder, a push rod, a piston and a sliding block with a micro-motion shifting wheel; wherein, the side wall of the needle cylinder is provided with a side groove extending along the length direction of the needle cylinder; the front end of the push rod is fixedly provided with the piston and is arranged in the needle cylinder together with the piston in a back-and-forth movable way; the sliding block with the micro-motion shifting wheel passes through the side groove through the fixing bolt to be fixedly connected with the push rod, and is used for precisely adjusting the positions of the push rod and the piston in the needle cylinder.
According to some embodiments of the invention, the front end of the sliding block with the micro-motion thumb wheel is provided with a bulge for the thumb to push quickly; the rear end of the sliding block with the micro-motion shifting wheel is provided with the micro-motion shifting wheel, the conical side surfaces at two ends of the micro-motion shifting wheel are matched with two side walls opposite to the side grooves, and the positions of the push rod and the piston in the needle cylinder can be precisely adjusted when the micro-motion shifting wheel is pressed and shifted by a finger.
According to some embodiments of the invention, the syringe includes an end cap that is sleeved over the rear end of the syringe.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic overall structure of a multipurpose atrial puncture device with a pressure monitoring function according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of an aqueous humor collecting assembly in the multipurpose atrial puncturing device with a pressure monitoring function according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a pressure measurement display module in the multipurpose atrial puncture device with a pressure monitoring function according to an embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of an end cap of a multipurpose atrial puncturing device with pressure monitoring according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a stepless micro-motion pressure/flow rate adjusting module in the multipurpose atrial puncture device with a pressure monitoring function according to an embodiment of the present invention.
Fig. 6 is a cross-sectional view of a stepless micro-motion pressure/flow regulation module in a multipurpose atrial puncture device with pressure monitoring function according to an embodiment of the present invention.
Fig. 7 is a schematic structural view of a jog dial in a multipurpose anterior chamber puncturing device with pressure monitoring function according to an embodiment of the present invention.
Fig. 8 is a schematic view of a multipurpose atrial puncturing device with pressure monitoring according to an embodiment of the present invention.
Reference numerals:
multipurpose anterior chamber puncture device 1000 with pressure monitoring function
Aqueous humor collecting assembly 1
Needle cap 104 of needle head of puncture needle 101 fixedly connected with protective wing 102 aqueous humor collecting hose 103
First connector 107 of end cap 105 hydrophobic and breathable membrane 106
Pressure measurement display module 2
First Lu Erxing male connector 201 and second luer female connector 202
Stepless micro-motion adjusting module 3 for pressure/flow
Slider 304 with micro-motion thumb wheel for plunger 303 of plunger 302 of needle cylinder 301
Side groove 305 fixing bolt 306 protrusion 3041 micro-movement thumb wheel 3042
End cap 307 second Lu Erxing male connector 308
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
A multipurpose anterior chamber puncturing device 1000 with pressure monitoring function according to an embodiment of the present invention is described below with reference to fig. 1 to 8, wherein multipurpose means that functions of quantitatively collecting aqueous humor, monitoring intraocular pressure in real time, controlling intraocular pressure release and controlling the outflow rate of aqueous humor are integrated.
As shown in fig. 1 to 8, a multipurpose anterior chamber puncture device 1000 with pressure monitoring function according to an embodiment of the present invention includes an aqueous humor collecting assembly 1, a pressure measurement display module 2, and a pressure/flow stepless inching adjustment module 3, which are sequentially connected from front to back; wherein, the aqueous humor collecting component 1 is used for puncturing the cornea of an eyeball to collect aqueous humor; the aqueous humor collecting component 1 is provided with a scale for reading the release amount of aqueous humor; the pressure measurement display module 2 is used for measuring and displaying the anterior chamber intraocular pressure in real time when the aqueous humor is collected by the aqueous humor collection assembly 1, and guiding the pressure relief operation process; the pressure/flow stepless inching adjustment module 3 is used for adjusting the intraocular pressure and the flow velocity of the aqueous humor when the aqueous humor collecting assembly 1 collects the aqueous humor.
Specifically, the aqueous humor collection assembly 1 is used for puncturing the cornea of an eyeball to collect aqueous humor in the anterior chamber of the eyeball, and the aqueous humor collection assembly 1 is provided with a scale for reading the release amount of aqueous humor. It can be understood that, because the aqueous humor in the anterior chamber of the eyeball has a certain pressure, after the aqueous humor collecting assembly 1 punctures the cornea of the eyeball, the aqueous humor can enter the aqueous humor collecting assembly 1, and because the aqueous humor collecting assembly 1 is provided with scales, the aqueous humor collecting amount or the release amount can be accurately observed in real time so as to quantitatively collect, the intraocular pressure is ensured to be maintained in a safe range, and the problem that the aqueous humor collecting amount or the release amount is excessive or insufficient is avoided. For example, as shown in fig. 1, 2 and 8, the aqueous humor collecting assembly 1 comprises a puncture needle 101 and an aqueous humor collecting hose 103, the puncture needle 101 is shorter than a common insulin injection needle and can be used for puncturing the cornea of an eyeball, and meanwhile, the puncture needle 101 is connected with the aqueous humor collecting hose 103 with scales, so that aqueous humor in the anterior chamber of the eyeball can enter the aqueous humor collecting hose 103 through the puncture needle 101, and further, the collection amount or the release amount of the aqueous humor can be observed through the scales on the aqueous humor collecting hose 103, so that the quantitative collection of the aqueous humor is realized.
The pressure measurement display module 2 is used for measuring and displaying the anterior chamber intraocular pressure in real time when the aqueous humor is collected by the aqueous humor collection assembly 1, and guiding the pressure relief operation and control process. It can be understood that one end of the pressure measurement display module 2 is communicated with the interior of the aqueous humor collecting assembly 1 and is in sealing connection, when the aqueous humor collecting assembly 1 collects aqueous humor, the aqueous humor enters the aqueous humor collecting assembly 1 under the intraocular pressure driving of the anterior chamber, the aqueous humor can squeeze the air in the aqueous humor collecting assembly 1 to move towards the pressure measurement display module 2, so that the pressure in the pressure measurement display module 2 is increased, the pressure in the anterior chamber can be reduced along with the release of the aqueous humor, after the pressure in the current chamber and the pressure in the pressure measurement display module 2 reach balance, the pressure measured by the pressure measurement display module 2 is the intraocular pressure of the anterior chamber according to the principle of static pressure transmission, namely, the pressure measurement display module 2 realizes real-time accurate monitoring of the real pressure in the anterior chamber. In the using process, a doctor can perform the pressure relief operation process by observing the intraocular pressure value displayed by the pressure measurement display module 2 in real time, so that the dependence on experience of the doctor in the puncture process is reduced, and the situation of excessive pressure relief or insufficient pressure relief is avoided.
The pressure measurement display module 2 is a miniature electronic device, and is internally provided with electronic components such as a pressure sensor, an analog/digital conversion sampling circuit, a microprocessor, a digital display screen, a battery and charge management circuit, a circuit board (PCB) and the like.
The pressure/flow stepless inching adjustment module 3 is used for adjusting the intraocular pressure and the flow velocity of the aqueous humor when the aqueous humor collecting assembly 1 collects the aqueous humor. Since the pressure measurement display module 2 can measure and display the anterior chamber intraocular pressure in real time, when a doctor collects aqueous humor in the anterior chamber of an eyeball by using the aqueous humor collection assembly 1, the pressure measurement display module 2 detects that the intraocular pressure in the anterior chamber is in an abnormal range, the intraocular pressure in the anterior chamber of the eyeball can be in a normal range by adjusting the pressure/flow stepless micro-motion adjusting module 3. For example, when the pressure measurement display module 2 detects that the intraocular pressure in the anterior chamber is too high, at this time, a doctor can reduce the intraocular pressure in the anterior chamber of the eyeball by adjusting the pressure/flow stepless micro-motion adjusting module 3, so as to avoid irreversible damage to the optic nerve caused by the steeply rising intraocular pressure, and create opportunities for further treatment; when the pressure measurement display module 2 detects that the intraocular pressure in the anterior chamber is too small, at the moment, a doctor can raise the intraocular pressure in the anterior chamber of the eyeball by adjusting the pressure/flow stepless micro-motion adjusting module 3, so that the damage of corneal endothelial cells and the damage of the lens caused by contact between the iris and the lens and the corneal endothelial due to the fact that the front becomes shallow or even disappears are avoided. The stepless inching pressure/flow regulating module 3 can also realize the control of the flow rate during the collection of the aqueous humor by regulating the pressure inside the aqueous humor collecting assembly 1. For example, when the flow rate is too high during aqueous humor collection, the pressure inside the aqueous humor collection assembly 1 can be increased by the pressure/flow stepless micro-motion adjusting module 3 to reduce the flow rate, so that serious complications such as damage to corneal endothelial cells and damage to the crystalline lens caused by contact between the iris and the crystalline lens and ciliary body detachment, explosive suprachoroidal hemorrhage and the like, which can be caused by sudden intraocular pressure drop, rapid shallowness and even disappearance of the anterior chamber, are avoided.
The aqueous humor collecting assembly 1 is a disposable collecting device, so that the aqueous humor collecting assembly is safer, more convenient and sanitary to use; the pressure measurement display module 2 and the pressure/flow stepless micro-motion adjusting module 3 can be used for repeated disinfection and sterilization.
The multipurpose anterior chamber puncture device 1000 with the pressure monitoring function according to the embodiment of the invention has the advantages that firstly, the real-time accurate measurement can be carried out on the aqueous humor collection/release amount, the intraocular pressure is ensured to be within a safe range, and meanwhile, the problem of excessive or insufficient aqueous humor collection/release is avoided; secondly, the pressure relief operation process can be carried out by observing the intraocular pressure value measured by the pressure measurement display module 2 in real time, so that the dependence on the experience of doctors in the puncture process is reduced, and the situation of excessive pressure relief or insufficient pressure relief is avoided; thirdly, the intraocular pressure and the aqueous humor release speed can be regulated, so that the situations of corneal endothelial cell injury, lens injury, ciliary body separation, explosive suprachoroidal hemorrhage and the like caused by contact between the iris and the lens and the corneal endothelium are avoided, wherein the intraocular pressure suddenly drops, the anterior chamber rapidly becomes shallow or even disappears in the aqueous humor collecting or releasing process; fourth, compact structure is fit for the single hand and samples, the operation of blowing.
According to some embodiments of the present invention, as shown in fig. 1 and 2, the aqueous humor collecting assembly 1 includes a puncture needle 101, a needle fixing attachment wing 102, an aqueous humor collecting hose 103, and a first connector 107, which are sequentially connected from front to back.
Specifically, the puncture needle 101 is used for puncturing the cornea of an eyeball; that is, the puncture needle 101 serves to puncture the cornea of the eyeball and guide aqueous humor in the anterior chamber into the aqueous humor collecting hose 103 via the needle-fixing-connecting wings 102. The puncture needle 101 can be cylindrical, and the puncture needle 101 is shorter than a common insulin injection needle, so that the puncture needle is not easy to puncture adjacent tissues such as cornea, iris or crystalline lens and the like when in use. The needle 101 may be made of medical grade stainless steel material.
The needle fixing connection protecting wings 102 are used for positioning the puncture needle 101 when collecting aqueous humor; it can be understood that one end of the needle fixing connection protecting wing 102 is connected with a puncture needle 101, the other end of the needle fixing connection protecting wing 102 is connected with an aqueous humor collecting hose 103, and the puncture needle 101 can be fixed through the needle fixing connection protecting wing 102 when aqueous humor is collected, so that the puncture needle 101 can not hurt eyeballs. Optionally, the needle attachment wings 102 are butterfly shaped and made of medical plastic.
The aqueous humor collecting hose 103 is used for collecting and storing aqueous humor, and scales are arranged on the aqueous humor collecting hose 103; it will be appreciated that the aqueous humor collecting hose 103 is a transparent tube, the scale on the aqueous humor collecting hose 103 may be provided on the outer wall of the aqueous humor collecting hose 103, and when in use, aqueous humor in the anterior chamber of the eyeball may enter the aqueous humor collecting hose 103 via the puncture needle 101 and be stored in the aqueous humor collecting hose 103, and a user may know the amount of aqueous humor in the aqueous humor collecting hose 103 by reading the scale on the aqueous humor collecting hose 103. Alternatively, the aqueous humor collecting hose 103 is made of a flexible polymer such as medical plastic or silicone.
The first connector 107 is detachably connected with the pressure measurement display module 2, and a hydrophobic and breathable film 106 is arranged in the first connector 107. That is, the aqueous humor collecting component 1 is detachably connected with the pressure measuring and displaying module 2 through the first connecting head 107, so that the aqueous humor collecting component 1 can be conveniently replaced, and the hydrophobic and breathable membrane 106 is a membrane which is impermeable to water and permeable to gas and can block bacteria. Be equipped with hydrophobic ventilated membrane 106 in first connector 107, when the aqueous humor is collected like this, the gaseous in the aqueous humor collection hose 103 can enter into in the pressure measurement display module 2 through hydrophobic ventilated membrane 106 to play the effect of transmission pressure, aqueous humor in the aqueous humor collection hose 103 can not enter into in the pressure measurement display module 2 and pollute pressure measurement display module 2 simultaneously, and hydrophobic ventilated membrane 106's setting can also prevent that the bacterium from entering or leaving aqueous humor collection hose 103, be favorable to aqueous humor collection hose 103 to carry out interim or long-term save to the aqueous humor sample that gathers, avoid aqueous humor to be polluted or pollute external environment by outside bacterium.
According to some embodiments of the present invention, aqueous humor collecting assembly 1 further comprises a needle cap 104, wherein needle cap 104 is sleeved on needle 101. The needle cap 104 is used for sleeving the puncture needle 101 when the aqueous humor collecting assembly 1 is not used or after the aqueous humor is collected, and the needle cap 104 is sleeved on the puncture needle 101 when not used, so that the puncture needle 101 can be prevented from injuring hands by mistake, bacteria can be prevented from entering the aqueous humor collecting hose 103 from the puncture needle 101, and the aqueous humor collecting hose 103 is prevented from being polluted; the needle cap 104 is sleeved on the puncture needle head 101 after the collection of the aqueous humor is completed, so that bacteria are prevented from entering the aqueous humor collecting hose 103 from the puncture needle head 101, and the aqueous humor collecting hose 103 is beneficial to temporarily or permanently storing the collected aqueous humor sample. Alternatively, the needle cap 104 may be made of medical grade plastic.
According to some embodiments of the present invention, aqueous humor collecting assembly 1 further includes an end cap 105, and end cap 105 is provided on the rear end of first connector 107 when first connector 107 is not connected to pressure measurement display module 2. In other words, the end cap 105 may cover the rear end of the first connection 107 of the aqueous humor collecting assembly 1 before the aqueous humor collecting assembly 1 is connected with the pressure measuring display module 2 or after the aqueous humor collecting assembly 1 is removed from the pressure measuring display module 2. Before the aqueous humor collecting assembly 1 is connected with the pressure measurement display module 2, the end cover 105 covers the rear end of the first connecting head 107 of the aqueous humor collecting assembly 1, so that bacteria can be prevented from entering the aqueous humor collecting hose 103, and the sterile environment inside the aqueous humor collecting hose 103 can be maintained; after the aqueous humor collecting component 1 collects aqueous humor and takes off from the pressure measurement display module 2, the end cover 105 covers the rear end of the first connector 107 of the aqueous humor collecting component 1, so that bacteria can be prevented from entering the aqueous humor collecting hose 103 to pollute the collected aqueous humor, short-term or long-term storage of the aqueous humor is facilitated, and volatilization of the aqueous humor during storage through the hydrophobic and breathable membrane 106 can be avoided.
In the multipurpose anterior chamber puncture device 1000 with pressure monitoring function according to the embodiment of the invention, the aqueous humor collecting assembly 1 is made by arranging the needle cap 104 sleeved on the puncture needle head 101 and the end cover 105 covered on the rear end of the first connecting head 107
The full-closed aqueous humor collecting/releasing structure can be formed, so that the risk of intraocular infection is greatly reduced, and the collected aqueous humor sample can be temporarily or permanently stored in the aqueous humor collecting component 1, and the leakage and cross infection of the aqueous humor with bacteria are prevented.
Optionally, a flexible connection structure integrally designed with the end cover 105 is provided between the end cover 105 and the first connector 107, so that the problem that the end cover 105 is easy to lose after being separated from the first connector 107 can be avoided.
According to some embodiments of the invention, as shown in fig. 1, the first connector 107 is a first luer type female connector; the front end of the pressure measurement display module 2 is provided with a first Lu Erxing male connector 201; the first luer type female connector is fitted and air-tightly connected with the first Lu Erxing male connector 201. It should be noted that, adopt luer type to connect the sealing connection that carries out aqueous humor collection subassembly 1 and pressure measurement display module 2, it is more simple and convenient to connect, and the dismantlement of also being convenient for aqueous humor collection subassembly 1 is changed, and the leakproofness is better, is favorable to improving the measurement accuracy of pressure measurement display module 2.
According to some embodiments of the present invention, as shown in fig. 1, the rear end of the pressure measurement display module 2 is provided with a second luer type female connector 202, and the front end of the pressure/flow stepless micro-motion adjustment module 3 is provided with a second Lu Erxing male connector 308, and the second luer type female connector 202 is adapted to and hermetically connected with the second Lu Erxing male connector 308. It should be noted that, the luer type connector is adopted to carry out the sealing connection between the pressure/flow stepless micro-motion adjusting module 3 and the pressure measurement display module 2, so that the connection is simpler and more convenient, the sealing performance is better, and the measurement accuracy of the pressure measurement display module 2 is improved.
According to some embodiments of the present invention, the pressure measurement display module 2 is provided with a buzzer for giving an alarm when the current atrial intraocular pressure is abnormal. It can be understood that when the pressure measurement display module 2 detects that the intraocular pressure is too low and too high, the buzzer automatically alarms, so that the purpose of reminding a doctor of attention is achieved, and the possibility of misoperation of the doctor is reduced.
According to some embodiments of the present invention, as shown in fig. 1, 5 and 6, the pressure/flow stepless fine adjustment module 3 comprises a cylinder 301, a push rod 302, a piston 303 and a slider 304 with fine dial wheels; wherein, the side wall of the needle cylinder 301 is provided with a side groove 305 extending along the length direction of the needle cylinder 301; a piston 303 is fixed to the front end of the plunger 302 and is provided in the cylinder 301 so as to be movable back and forth together with the piston 303; the sliding block 304 with the micro-motion thumb wheel is fixedly connected with the push rod 302 through the side groove 305 by the fixing bolt 306 and is used for precisely adjusting the positions of the push rod 302 and the piston 303 in the needle cylinder 301. Therefore, when the device is used, the sliding block 304 with the micro-motion thumb wheel is pushed to move along the side groove 305, so that the push rod 302 connected with the piston 303 is driven to move along the needle cylinder 301, the position of the piston 303 in the needle cylinder 301 is precisely adjusted, and the piston 303 is in sealing fit with the inner wall of the needle cylinder 301, so that the piston 303 can change the pressure in the needle cylinder 301 by changing the position, and the pressure/flow stepless micro-motion adjusting module 3 is communicated with the inside of the aqueous humor collecting assembly 1 and is in sealing connection, the pressure in the aqueous humor collecting assembly 1 is adjusted by adjusting the pressure in the needle cylinder 301 of the pressure/flow stepless micro-motion adjusting module 3, and when the aqueous humor collecting assembly 1 collects aqueous humor in the anterior chamber of an eyeball, the pressure in the aqueous humor collecting assembly 1 and the intraocular pressure in the anterior chamber of the eyeball can be balanced due to the principle of static pressure balance, thereby the aim of controlling and adjusting the intraocular pressure or adjusting the aqueous humor collecting or releasing speed can be achieved, and the problem that the intraocular pressure in the anterior chamber of the eye rapidly becomes shallow or even disappears can be avoided.
According to some embodiments of the present invention, as shown in fig. 1, 5 and 6, the front end of the slider 304 with jog dial is provided with a protrusion 3041 for the thumb to push quickly; it can be understood that the user can push the protrusion 3041 to realize the rapid adjustment of the pressure inside the pressure/flow stepless micro-motion adjusting module 3, so as to achieve the purpose of rapidly reducing the over-high intraocular pressure, and avoid or reduce the irreversible damage to the optic nerve caused by the over-high intraocular pressure; the rear end of the sliding block 304 with the micro-motion thumb wheel is provided with the micro-motion thumb wheel 3042, the conical side surfaces at the two ends of the micro-motion thumb wheel 3042 are matched with the two side walls opposite to the side groove 305 (as shown in fig. 7), and when in use, a doctor can precisely adjust the positions of the push rod 302 and the piston 303 in the needle cylinder 301 by pressing the micro-motion thumb wheel 3042 by fingers and poking. It can be understood that when the micro-movement thumb wheel 3042 is shifted, the friction force of the relative movement between the tapered side surface of the micro-movement thumb wheel 3042 and the opposite side walls of the side groove 305 makes the micro-movement thumb wheel 3042 rotate slowly, so as to realize the slow movement of the slider 304 with the micro-movement thumb wheel, further realize stepless slow and precise adjustment of the intraocular pressure and the release speed of aqueous humor, and avoid the problems of sudden drop of intraocular pressure, rapid shallowing of anterior chamber and even disappearance of anterior chamber. For example, if the pressure measurement display module 2 shows that the intraocular pressure value is too high, the doctor may dial the jog dial 3042 on the pressure/flow stepless jog adjustment module 3 backward (by pressing and rolling the jog dial 3042 backward), thereby withdrawing the push rod 302 in the syringe 301 outward, reducing the pressure of the gas in the central passage; conversely, if the anterior chamber pressure is shown to be too low, the jog dial 3042 may be pressed and rolled forward, thereby moving the plunger 302 in the barrel 301 inward, increasing the pressure of the gas in the central passage, and thus increasing the intraocular pressure.
According to some embodiments of the present invention, the syringe 301 includes an end cap 307, the end cap 307 is sleeved on the rear end of the syringe 301, and the end cap 307 is provided to protect and prevent the wrong operation of the push rod 302, and to serve as a grip portion when the doctor operates the jog dial 3042 with one hand. It will be appreciated that the inner wall of the end cap 307 is not in contact with the outer wall of the pushrod 302 so that air within the end cap 307 can flow correspondingly as the pushrod 302 moves without affecting the normal movement of the pushrod 302. Optionally, the end cap 307 is threadably connected to the barrel 301.
A specific example of the present invention is given below.
The multipurpose anterior chamber puncture device 1000 with the pressure monitoring function of the embodiment comprises an aqueous humor collecting assembly 1, a pressure measurement display module 2 and a pressure/flow stepless micro-motion adjusting module 3 which are sequentially connected from front to back; wherein,,
the aqueous humor collecting assembly 1 comprises a puncture needle 101, a needle fixed connection protective wing 102, an aqueous humor collecting hose 103 and a first luer type female connector which are sequentially connected from front to back; wherein, the puncture needle 101 is used for puncturing the cornea of the eyeball to collect aqueous humor; the needle fixing connection protecting wings 102 are used for positioning the puncture needle 101 when collecting aqueous humor; the aqueous humor collecting hose 103 is used for collecting and storing aqueous humor, and scales for reading the release amount of the aqueous humor are arranged on the aqueous humor collecting hose 103; a hydrophobic, breathable membrane 106 is disposed within the first luer type female connector. The aqueous humor collecting assembly 1 further comprises a needle cap 104 which is fitted over the puncture needle 101 before or after use and an end cap 105 which is covered over the rear end of the first luer type female connector when the first luer type female connector is connected before the pressure measurement display module 2.
The intraocular pressure measurement display module is a microminiature electronic device, and is internally provided with electronic components such as a pressure sensor, an analog/digital conversion sampling circuit, a microprocessor, a digital display screen, a buzzer, a battery and charge management circuit, a circuit board (PCB) and the like. The buzzer on the pressure measurement display module 2 is used for giving an alarm when the current atrial intraocular pressure is abnormal, and the pressure measurement display module 2 is used for measuring and displaying the anterior atrial intraocular pressure in real time when the aqueous humor is collected by the aqueous humor collection assembly 1, so as to guide the decompression control process.
The front end of the pressure measurement display module 2 is provided with a first Lu Erxing male connector 201, and the first luer type female connector is detachably connected with the first Lu Erxing male connector 201 of the pressure measurement display module 2.
The stepless micro-motion pressure/flow rate adjusting module 3 comprises a needle cylinder 301, a push rod 302, a piston 303 and a sliding block 304 with a micro-motion thumb wheel; wherein, the side wall of the needle cylinder 301 is provided with a side groove 305 extending along the length direction of the needle cylinder 301; a piston 303 is fixed to the front end of the plunger 302 and is provided in the cylinder 301 so as to be movable back and forth together with the piston 303; the sliding block 304 with the micro-motion thumb wheel passes through the side groove 305 through the fixing bolt 306 to be fixedly connected with the push rod 302, and is used for precisely adjusting the positions of the push rod 302 and the piston 303 in the needle cylinder 301, and the front end of the sliding block 304 with the micro-motion thumb wheel is provided with a bulge 3041 for the thumb to quickly push; the rear end of the sliding block 304 with the micro-movement thumb wheel is provided with the micro-movement thumb wheel 3042, the conical side surfaces at the two ends of the micro-movement thumb wheel 3042 are matched with the two opposite side walls of the side groove 305, and the positions of the push rod 302 and the piston 303 in the needle cylinder 301 can be precisely adjusted when the micro-movement thumb wheel 3042 is pressed and poked by a finger. The cylinder 301 includes an end cap 307, and the end cap 307 is sleeved on the rear end of the cylinder 301. The pressure/flow stepless inching adjustment module 3 is used for adjusting the intraocular pressure and the flow velocity of the aqueous humor when the aqueous humor collecting assembly 1 collects the aqueous humor.
The rear end of the pressure measurement display module 2 is provided with a second luer type female connector 202, the front end of the pressure/flow stepless micro-motion adjusting module 3 is provided with a second Lu Erxing male connector 308, and the second luer type female connector 202 is connected with the second Lu Erxing male connector 308 in a matching and airtight manner.
After the components of the aqueous humor collecting component 1, the pressure measuring and displaying module 2 and the pressure/flow stepless micro-motion adjusting module 3 are connected and locked, an airtight central channel capable of transmitting pressure is formed. After the puncture needle 101 of the front aqueous humor collecting assembly 1 pierces the anterior chamber of the eyeball, the push rod 302 in the pressure/flow stepless micro-motion adjusting module 3 is kept motionless, aqueous humor enters the aqueous humor collecting hose 103 under the drive of the intraocular pressure of the anterior chamber, and gas in the whole central passage is compressed. Thus, the anterior chamber pressure will decrease with the release of aqueous humor, while the gas pressure in the central passageway will increase with the entry of aqueous humor, and both will eventually equilibrate. The equilibrium pressure can be measured and displayed by the pressure measurement display module 2 communicating to the central passage. According to the principle of static pressure transmission, the pressure is the anterior chamber intraocular pressure.
If the pressure value displayed at this time is still too high, the jog dial 3042 on the stepless jog pressure/flow rate adjusting module 3 can be slowly shifted backward (by compacting and rolling the jog dial 3042 backward), so that the push rod 302 in the needle cylinder 301 is pulled out, and the pressure of the gas in the central channel is reduced; conversely, if the anterior chamber pressure is shown to be too low, the jog dial 3042 may be pressed and rolled forward, thereby moving the plunger 302 in the barrel 301 inward, increasing the pressure of the gas in the central passage, and thus increasing the intraocular pressure. At the same time as anterior chamber pressure monitoring/adjustment, the total amount of aqueous humor released or collected may be read by the scale on the aqueous humor collecting hose 103.
The multipurpose anterior chamber puncture device 1000 with the pressure monitoring function of the embodiment has the advantages that firstly, the real-time accurate measurement can be carried out on the aqueous humor collection amount/release amount, the intraocular pressure is ensured to be within a safe range, and meanwhile, the problem of excessive or insufficient aqueous humor collection/release is avoided; secondly, the pressure relief operation process can be carried out by observing the intraocular pressure value measured by the pressure measurement display module 2 in real time, so that the dependence on the experience of doctors in the puncture process is reduced, and the situation of excessive pressure relief or insufficient pressure relief is avoided; thirdly, the intraocular pressure and the aqueous humor release speed can be accurately regulated, so that the situations of corneal endothelial cell injury, lens injury, ciliary body separation, explosive suprachoroidal hemorrhage and the like caused by contact between the iris and the lens and the corneal endothelium are avoided, wherein the intraocular pressure suddenly drops, the anterior chamber rapidly becomes shallow or even disappears in the aqueous humor collecting or releasing process; fourth, compact structure is fit for the single hand and samples, the operation of blowing.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. The multipurpose anterior chamber puncture device with the pressure monitoring function is characterized by comprising an aqueous humor collecting assembly, a pressure measurement display module and a pressure/flow stepless micro-motion adjusting module which are sequentially connected from front to back; wherein,,
the aqueous humor collecting component is used for puncturing the cornea of an eyeball to collect aqueous humor; the aqueous humor collecting component is provided with a scale for reading the release amount of aqueous humor;
the aqueous humor collecting assembly comprises a puncture needle head, a needle head fixed connection protecting wing, an aqueous humor collecting hose and a first connector which are sequentially connected from front to back; wherein the puncture needle head is used for puncturing the cornea of the eyeball; the needle head is fixedly connected with the protective wing and is used for positioning the puncture needle head when aqueous humor is collected; the aqueous humor collecting hose is used for collecting and storing aqueous humor, and the scale is arranged on the aqueous humor collecting hose; the first connector is detachably connected with the pressure measurement display module, and a hydrophobic and breathable film is arranged in the first connector;
the pressure measurement display module is used for measuring and displaying the anterior chamber intraocular pressure in real time when the aqueous humor is collected by the aqueous humor collection assembly, and guiding the pressure relief operation process;
the pressure/flow stepless inching adjustment module is used for adjusting the intraocular pressure and the flow velocity of the aqueous humor when the aqueous humor collecting assembly collects the aqueous humor;
the pressure/flow stepless micro-motion adjusting module comprises a needle cylinder, a push rod, a piston and a sliding block with a micro-motion shifting wheel; wherein, the side wall of the needle cylinder is provided with a side groove extending along the length direction of the needle cylinder; the front end of the push rod is fixedly provided with the piston and is arranged in the needle cylinder together with the piston in a back-and-forth movable way; the sliding block with the micro-motion shifting wheel passes through the side groove through a fixing bolt to be fixedly connected with the push rod, and is used for precisely adjusting the positions of the push rod and the piston in the needle cylinder;
the front end of the sliding block with the micro-motion thumb wheel is provided with a bulge for the thumb to push quickly; the rear end of the sliding block with the micro-motion shifting wheel is provided with the micro-motion shifting wheel, the conical side surfaces at two ends of the micro-motion shifting wheel are matched with two side walls opposite to the side grooves, and the positions of the push rod and the piston in the needle cylinder can be precisely adjusted when the micro-motion shifting wheel is pressed and shifted by a finger;
when the micro-motion shifting wheel is shifted, the friction force of the relative motion between the conical side surface of the micro-motion shifting wheel and the two opposite side walls of the side groove enables the micro-motion shifting wheel to rotate slowly, so that the sliding block with the micro-motion shifting wheel is driven to move slowly.
2. The multipurpose anterior chamber puncturing device with pressure monitoring function as claimed in claim 1, wherein the aqueous humor collecting assembly further comprises a needle cap which is sleeved on the puncturing needle head.
3. The multipurpose anterior chamber puncturing device with pressure monitoring function as claimed in claim 1, wherein the aqueous humor collecting assembly further comprises an end cap which is capped on the rear end of the first connector when the first connector is not connected with the pressure measurement display module.
4. The multipurpose anterior chamber puncturing device with pressure monitoring function as claimed in claim 1, wherein the first connector is a first luer female connector; the front end of the pressure measurement display module is provided with a first Lu Erxing male connector; the first luer female connector is adapted and hermetically connected with the first Lu Erxing male connector.
5. The multipurpose anterior chamber puncture device with pressure monitoring function according to claim 1, wherein a second luer type female connector is provided at the rear end of the pressure measurement display module, a second Lu Erxing male connector is provided at the front end of the pressure/flow stepless micro-motion adjustment module, and the second luer type female connector is adapted to and hermetically connected with the second Lu Erxing male connector.
6. The multipurpose anterior chamber puncture device with pressure monitoring function according to claim 1, wherein the pressure measurement display module is provided with a buzzer for giving an alarm when the anterior chamber pressure is abnormal.
7. The multipurpose anterior chamber puncturing device with pressure monitoring function as claimed in claim 1, wherein the syringe comprises an end cap, and the end cap is sleeved at the rear end of the syringe.
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| CN113425497A (en) * | 2021-07-22 | 2021-09-24 | 上海市同济医院 | Automatic control device for intracameral puncture drainage intraocular pressure |
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