CN114795651A - Crystal nucleus delivery device for cataract surgery - Google Patents
Crystal nucleus delivery device for cataract surgery Download PDFInfo
- Publication number
- CN114795651A CN114795651A CN202210387985.2A CN202210387985A CN114795651A CN 114795651 A CN114795651 A CN 114795651A CN 202210387985 A CN202210387985 A CN 202210387985A CN 114795651 A CN114795651 A CN 114795651A
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- China
- Prior art keywords
- movable
- sleeve
- hollow tube
- balloon
- crystal nucleus
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
Abstract
The invention provides a crystal nucleus remover for cataract surgery, which relates to the technical field of surgical instruments and comprises the following components: a hollow tube; the lower end of the hollow tube is connected with the sucker, the upper end of the hollow tube is connected with the balloon, and the balloon is communicated with the sucker through the hollow tube; the sleeve is fixedly connected to the outside of the hollow tube, and the outside of the sleeve is connected with the movable cylinder; the sucker is connected with the clamping claw, and the clamping claw is connected with the movable barrel through the connecting rod. According to the invention, the top parts of the two movable hook parts are simultaneously pressed inwards by an operator to realize the lens clamping and fixing effect, and when the top part of a single movable hook part is pressed inwards to bear force, the movable cylinder cannot be triggered to move downwards, so that the safety effect is achieved, and the operation is ensured. The problem of crystal nucleus delivery device when using, its inside trigger part lacks insurance safeguard function, very easily takes place the mistake when handheld operation and touches, causes the secondary damage to the patient easily is solved.
Description
Technical Field
The invention relates to the technical field of surgical instruments, in particular to a crystal nucleus remover for cataract surgery.
Background
Cataract is one of the most common blinding eye diseases, cornea and crystalline lens are the most main refractive structures of human eyes, the crystalline lens is transparent under normal conditions, light reaches retina through the crystalline lens and other refractive media to see external objects clearly, once the crystalline lens is turbid for some reasons, the retinal image is influenced, people cannot see clearly, namely, the cataract is generated due to vision reduction caused by the turbid crystalline lens. Surgery is the only effective treatment means for cataract at present. Cataract surgery typically employs a clear corneal micro-incision phacoemulsification to remove the clouded lens. However, if the corneal endothelium count of the patient is low, the patient has hyperscleroma, hemiluxation of the crystalline lens, or rupture of the posterior capsule in the hypermastectomy, the patient no longer has the condition of hypermastrosis, and the crystalline lens nucleus needs to be delivered manually.
However, when the conventional crystal nucleus remover is used, the internal trigger part of the conventional crystal nucleus remover lacks a safety protection function, and is very easy to be touched by mistake in a handheld operation, so that the clamping part is started in improper time, secondary damage is easily caused to a patient, and the postoperative recovery effect of the patient is influenced.
Disclosure of Invention
In view of the above, the invention provides a crystal nucleus remover for cataract surgery, which requires an operator to press the tops of two movable hook members inwards at the same time, the bottom ends of the movable hook members are separated from a movable cylinder, the movable cylinder moves downwards under the influence of the thrust of a spring, so as to realize the effect of clamping and fixing crystalline lenses; and the use of cooperation safety ring, when the safety ring removed to the bottom, the safety ring both ends contacted with two movable hook pieces respectively, played dual fail-safe effect, prevented that movable hook piece mistake from touching the emergence of opening the situation.
The invention provides a crystal nucleus remover for cataract surgery, which specifically comprises: a hollow tube; the lower end of the hollow tube is connected with the sucker, the upper end of the hollow tube is connected with the balloon, and the balloon is communicated with the sucker through the hollow tube; the sleeve is fixedly connected to the outside of the hollow tube, and the outside of the sleeve is connected with the movable cylinder; the sucker is connected with the clamping claw, and the clamping claw is connected with the movable cylinder through a connecting rod; the number of the movable hook parts is two, the movable hook parts are respectively connected to two ends of the sleeve, and the bottom of each movable hook part is connected with the corresponding movable cylinder; the outside of the sleeve is connected with a safety ring, the safety ring is positioned at the top of the movable cylinder, and the top of the movable hook is connected with the safety ring.
Optionally, the suction cup is composed of an outer disc and an inner disc, the inner disc is located inside the outer disc, the hollow tube is composed of an outer tube and an inner tube, the inner tube is located inside the outer tube, the balloon is composed of an outer bag and an inner bag, the inner bag is located inside the outer bag, the outer bag is communicated with the outer disc through the outer tube, and the inner bag is communicated with the inner disc through the inner tube.
Optionally, the outer portion of the sucker is connected with four clamping claws in a surrounding manner, the clamping claws are rotatably connected with the sucker, and one end of the connecting rod is rotatably connected with the clamping claws.
Optionally, the movable cylinder is slidably sleeved at the bottom of the outer side of the sleeve, and the bottom of the movable cylinder is connected with the four connecting rods in a surrounding manner.
Optionally, a spring is sleeved outside the sleeve, and the bottom end of the spring is pressed on the top of the movable cylinder.
Optionally, the movable hook is respectively rotatably connected to the left end and the right end of the sleeve, the left end and the right end of the sleeve are respectively connected with a torsion spring, the torsion springs are connected with the movable hook, and the two ends of the top of the movable cylinder are respectively connected with the bottom ends of the two movable hooks.
Optionally, the safety ring is slidably sleeved on the top of the outer side of the sleeve, and two ends of the safety ring are respectively in contact with the inner sides of the tops of the left movable hook piece and the right movable hook piece.
Optionally, the outer side of the top of the sleeve is provided with a limiting hook, and the bottom of the limiting hook is respectively contacted with the upper end and the lower end of the safety ring.
Advantageous effects
According to the crystal nucleus remover for the cataract surgery, compared with the traditional crystal nucleus remover, an operator needs to press the tops of two movable hook pieces inwards at the same time, the bottom ends of the movable hook pieces are separated from the movable cylinder, and the movable cylinder moves downwards under the influence of the thrust of the spring, so that the effect of clamping and fixing crystalline lenses is realized, and when the top of a single movable hook piece is pressed inwards, the movable cylinder cannot be triggered to move downwards, so that the safety effect is achieved, and the operation is guaranteed; and the use of cooperation safety ring, when the safety ring removed to the bottom, the safety ring both ends contacted with two movable hook pieces respectively, played dual fail-safe effect, prevented that movable hook piece mistake from touching the emergence of opening the situation.
In addition, through the arrangement of the sucking disc, the hollow tube and the balloon, the extrusion balloon is used for generating negative pressure, so that the outer disc and the inner disc are synchronously adsorbed outside the crystalline lens, the dual adsorption and fixation effects on the crystalline lens are achieved, and the stability of the crystalline lens during delivery is guaranteed; the movable cylinder moves downwards after the crystalline lens is adsorbed and delivered, the movable cylinder drives the four clamping claws to synchronously rotate downwards through the connecting rods, so that the clamping claws are contacted with the bottom of the crystalline lens to clamp and fix the crystalline lens, the crystalline lens is prevented from dropping in the moving process, secondary injury is avoided, and postoperative recovery of a patient is facilitated.
In addition, through the setting of spacing pothook, when the safety ring removed to the bottom, spacing pothook contacted with the safety ring top, played the spacing effect of safety ring, when the safety ring removed to the top, the safety ring both ends respectively with two movable hook piece phase separations, spacing pothook contacted with the safety ring bottom, played the spacing effect of safety ring, ensured the stability under the two kinds of position states of safety ring.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
The drawings in the following description relate to only some embodiments of the invention and are not intended to limit the invention.
In the drawings:
fig. 1 is a schematic view showing an axial side structure in a closed state of a gripping claw according to an embodiment of the present invention;
fig. 2 is a schematic view showing an axial side structure of a gripping claw according to an embodiment of the present invention in an open and close state;
FIG. 3 shows a schematic view of a suction cup, hollow tube and balloon connection according to an embodiment of the present invention;
FIG. 4 shows a schematic structural view of a cross-sectional connection embodiment of the suction cup, hollow tube and balloon according to the present invention;
FIG. 5 illustrates a schematic view of a suction cup and gripping jaw connection according to an embodiment of the present invention;
FIG. 6 is a schematic side view of the safety ring in a downward movement state according to an embodiment of the present invention;
FIG. 7 is a schematic axial side view of a safety ring according to an embodiment of the present invention in an elevated state;
fig. 8 shows a disassembled structure diagram of the sleeve, the movable barrel, the movable hook and the safety ring according to the embodiment of the invention.
List of reference numerals
1. A suction cup; 101. an outer disc; 102. an inner disc; 2. a hollow tube; 201. an outer tube; 202. an inner tube; 3. a balloon; 301. an outer bladder; 302. an inner bag; 4. a sleeve; 401. a limit hook; 5. clamping claws; 6. a connecting rod; 7. a movable barrel; 8. a spring; 9. a movable hook; 10. a torsion spring; 11. and a safety ring.
Detailed Description
In order to make the objects, aspects and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. Unless otherwise indicated, terms used herein have the ordinary meaning in the art. Like reference symbols in the various drawings indicate like elements.
Example (b):
please refer to fig. 1 to 8:
the invention provides a crystal nucleus remover for cataract surgery, which comprises: hollow tube 2, sleeve 4 and movable hook 9; the lower end of the hollow tube 2 is connected with the sucker 1, the upper end of the hollow tube 2 is connected with the saccule 3, and the saccule 3 is communicated with the sucker 1 through the hollow tube 2; the sucking disc 1 is composed of an outer disc 101 and an inner disc 102, the inner disc 102 is positioned inside the outer disc 101, the hollow tube 2 is composed of an outer tube 201 and an inner tube 202, the inner tube 202 is positioned inside the outer tube 201, the balloon 3 is composed of an outer capsule 301 and an inner capsule 302, the inner capsule 302 is positioned inside the outer capsule 301, the outer capsule 301 is communicated with the outer disc 101 through the outer tube 201, the inner capsule 302 is communicated with the inner disc 102 through the inner tube 202, negative pressure is generated by squeezing the balloon 3, the outer disc 101 and the inner disc 102 are synchronously adsorbed outside a crystalline lens, double adsorption fixing effect on the crystalline lens is achieved, and stability of the crystalline lens during delivery is guaranteed; the sleeve 4 is fixedly connected to the outside of the hollow tube 2, and the outside of the sleeve 4 is connected with a movable cylinder 7; the sucker 1 is connected with the clamping claw 5, and the clamping claw 5 is connected with the movable cylinder 7 through the connecting rod 6; the number of the movable hook members 9 is two, the movable hook members 9 are respectively connected to two ends of the sleeve 4, and the bottom of each movable hook member 9 is connected with the movable barrel 7; a safety ring 11 is connected to the outside of the sleeve 4, the safety ring 11 is positioned on the top of the movable cylinder 7, and the top of the movable hook 9 is connected with the safety ring 11.
In addition, according to the embodiment of the invention, four clamping claws 5 are connected to the outside of the sucker 1 in a surrounding manner, the clamping claws 5 are rotatably connected with the sucker 1, one end of a connecting rod 6 is rotatably connected with the clamping claws 5, a movable cylinder 7 is slidably sleeved at the bottom of the outer side of the sleeve 4, and the bottom of the movable cylinder 7 is rotatably connected with the four connecting rods 6 in a surrounding manner;
by adopting the technical scheme, after the lens is adsorbed and delivered, the movable cylinder 7 moves downwards, the movable cylinder 7 drives the four clamping claws 5 to synchronously rotate downwards through the connecting rod 6, so that the clamping claws 5 are contacted with the bottom of the lens, the lens is clamped and fixed, the lens is prevented from dropping in the moving process, secondary injury is avoided, and postoperative recovery of a patient is facilitated.
In addition, according to the embodiment of the invention, the outer side of the sleeve 4 is sleeved with the spring 8, the bottom end of the spring 8 is pressed on the top of the movable cylinder 7, the movable hook members 9 are respectively and rotatably connected to the left end and the right end of the sleeve 4, the left end and the right end of the sleeve 4 are respectively connected with the torsion springs 10, the torsion springs 10 are connected with the movable hook members 9, and the two ends of the top of the movable cylinder 7 are respectively connected with the bottom ends of the two movable hook members 9;
adopt above-mentioned technical scheme, when the operator inwards pressed two movable hook 9 tops simultaneously, movable hook 9 bottom and a movable section of thick bamboo 7 separation, movable section of thick bamboo 7 receives 8 thrust influences of spring to move down, realizes the crystalline lens and steps up fixed effect, when single movable hook 9 top inwards presses the atress, then can't trigger movable section of thick bamboo 7 and move down, plays insurance effect, the going on of guarantee operation.
In addition, according to the embodiment of the invention, the safety ring 11 is slidably sleeved on the top of the outer side of the sleeve 4, and two ends of the safety ring 11 are respectively contacted with the inner sides of the tops of the left and right movable hook members 9;
adopt above-mentioned technical scheme, when the safety ring 11 removed to the bottom, the 11 both ends of safety ring contacted with two activity hook member 9 respectively, played dual fail-safe effect, prevented that activity hook member 9 mistake from touching the emergence of opening the situation.
In addition, according to the embodiment of the present invention, the outer side of the top of the sleeve 4 is provided with a limiting hook 401, and the bottom of the limiting hook 401 is respectively contacted with the upper end and the lower end of the safety ring 11;
adopt above-mentioned technical scheme, when the safety ring 11 removed to the bottom, spacing pothook 401 contacted with the 11 tops of safety ring, played 11 spacing effects to the safety ring, when the safety ring 11 removed to the top, 11 both ends of safety ring respectively with two activity hook 9 phase separations, spacing pothook 401 contacted with 11 bottoms of safety ring, played 11 spacing effects to the safety ring, ensured the stability under 11 two kinds of position states of safety ring.
The specific use mode and function of the embodiment are as follows: when the device is used, the outer disc 101 and the inner disc 102 are synchronously adsorbed outside the crystalline lens by extruding the saccule 3 to generate negative pressure, so that the dual adsorption and fixation effects on the crystalline lens are achieved, and the stability of the crystalline lens during delivery is guaranteed; then, the safety ring 11 is moved to the top end, the two ends of the safety ring 11 are respectively separated from the two movable hook members 9, and the limiting hook 401 is contacted with the bottom of the safety ring 11 to achieve the effect of limiting the safety ring 11; after the crystalline lens is adsorbed and delivered, when an operator simultaneously presses the tops of the two movable hook parts 9 inwards, the bottom ends of the movable hook parts 9 are separated from the movable cylinder 7, the movable cylinder 7 moves downwards under the influence of the thrust of the spring 8, so that the clamping claws 5 are contacted with the bottom of the crystalline lens to clamp and fix the crystalline lens, the crystalline lens is prevented from falling in the moving process, secondary injury is avoided, and postoperative recovery of a patient is facilitated; when the top of the single movable hook 9 is pressed inwards to bear force, the movable cylinder 7 cannot be triggered to move downwards, so that the safety effect is achieved, and the operation is guaranteed; when the safety ring 11 moves to the bottom end, the two ends of the safety ring 11 are respectively contacted with the two movable hook members 9, the movable hook members 9 are limited, a double-safety effect is achieved, and the movable hook members 9 are prevented from mistakenly touching the opening condition.
Finally, it should be noted that, when describing the positions of the components and the matching relationship therebetween, the present invention is usually illustrated by one/a pair of components, however, it should be understood by those skilled in the art that such positions, matching relationship, etc. are also applicable to other/other pairs of components.
The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.
Claims (8)
1. A crystal nucleus remover for cataract surgery, comprising: a hollow tube (2); the lower end of the hollow tube (2) is connected with the sucker (1), the upper end of the hollow tube (2) is connected with the balloon (3), and the balloon (3) is communicated with the sucker (1) through the hollow tube (2); the sleeve (4) is fixedly connected to the outside of the hollow tube (2), and the outside of the sleeve (4) is connected with a movable cylinder (7); the sucker (1) is connected with the clamping claw (5), and the clamping claw (5) is connected with the movable cylinder (7) through the connecting rod (6); the number of the movable hook members (9) is two, the movable hook members (9) are respectively connected to two ends of the sleeve (4), and the bottom of each movable hook member (9) is connected with the corresponding movable cylinder (7); the outer part of the sleeve (4) is connected with a safety ring (11), the safety ring (11) is positioned at the top of the movable cylinder (7), and the top of the movable hook (9) is connected with the safety ring (11).
2. The crystal nucleus remover for cataract surgery as claimed in claim 1, wherein: the sucker (1) is composed of an outer disc (101) and an inner disc (102), the inner disc (102) is located inside the outer disc (101), the hollow tube (2) is composed of an outer tube (201) and an inner tube (202), the inner tube (202) is located inside the outer tube (201), the balloon (3) is composed of an outer balloon (301) and an inner balloon (302), the inner balloon (302) is located inside the outer balloon (301), the outer balloon (301) is communicated with the outer disc (101) through the outer tube (201), and the inner balloon (302) is communicated with the inner disc (102) through the inner tube (202).
3. The crystal nucleus remover for cataract surgery as claimed in claim 1, wherein: the outer portion of the sucker (1) is connected with four clamping claws (5) in a surrounding manner, the clamping claws (5) are rotatably connected with the sucker (1), and one end of the connecting rod (6) is rotatably connected with the clamping claws (5).
4. The crystal nucleus remover for cataract surgery as claimed in claim 1, wherein: the movable cylinder (7) is slidably sleeved at the bottom of the outer side of the sleeve (4), and the bottom of the movable cylinder (7) is connected with the four connecting rods (6) in a surrounding manner in a rotating manner.
5. The crystal nucleus remover for cataract surgery as claimed in claim 1, wherein: the outer side of the sleeve (4) is sleeved with a spring (8), and the bottom end of the spring (8) is pressed at the top of the movable barrel (7).
6. The crystal nucleus remover for cataract surgery as claimed in claim 1, wherein: the movable hook piece (9) is respectively connected to the left end and the right end of the sleeve (4) in a rotating mode, the left end and the right end of the sleeve (4) are respectively connected with the torsion spring (10), the torsion spring (10) is connected with the movable hook piece (9), and the two ends of the top of the movable cylinder (7) are respectively connected with the bottom ends of the two movable hook pieces (9).
7. The crystal nucleus remover for cataract surgery as claimed in claim 1, wherein: the safety ring (11) is slidably sleeved at the top of the outer side of the sleeve (4), and two ends of the safety ring (11) are respectively contacted with the inner sides of the tops of the left movable hook piece and the right movable hook piece (9).
8. The crystal nucleus remover for cataract surgery as claimed in claim 1, wherein: the outer side of the top of the sleeve (4) is provided with a limiting hook (401), and the bottom of the limiting hook (401) is respectively contacted with the upper end and the lower end of the safety ring (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210387985.2A CN114795651A (en) | 2022-04-13 | 2022-04-13 | Crystal nucleus delivery device for cataract surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210387985.2A CN114795651A (en) | 2022-04-13 | 2022-04-13 | Crystal nucleus delivery device for cataract surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114795651A true CN114795651A (en) | 2022-07-29 |
Family
ID=82537449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210387985.2A Withdrawn CN114795651A (en) | 2022-04-13 | 2022-04-13 | Crystal nucleus delivery device for cataract surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114795651A (en) |
-
2022
- 2022-04-13 CN CN202210387985.2A patent/CN114795651A/en not_active Withdrawn
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220729 |
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| WW01 | Invention patent application withdrawn after publication |