CN211460819U - Silicone oil extractor for ophthalmologic diagnosis and treatment - Google Patents
Silicone oil extractor for ophthalmologic diagnosis and treatment Download PDFInfo
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- CN211460819U CN211460819U CN202020033244.0U CN202020033244U CN211460819U CN 211460819 U CN211460819 U CN 211460819U CN 202020033244 U CN202020033244 U CN 202020033244U CN 211460819 U CN211460819 U CN 211460819U
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- sliding
- sliding block
- sliding groove
- elastic tongue
- silicone oil
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Abstract
The utility model discloses a silicone oil extractor for ophthalmological diagnosis and treatment, which comprises a syringe tube, wherein a piston is arranged in the syringe tube, a plunger rod is arranged on the piston, and the plunger rod extends backwards to the outside of the syringe tube; the needle cylinder is fixedly provided with an outer shell outside the needle cylinder, a sliding groove is arranged on the outer shell and is arranged along the axial direction of the needle cylinder tube, a sliding block is arranged in the sliding groove, a plurality of elastic tongue blocks are arranged along the edge of the sliding groove, the elastic tongue blocks are convex arc-shaped towards one side of the sliding groove, arc-shaped grooves used for being meshed with the elastic tongue blocks are arranged on the sliding block, a connecting plate is additionally arranged, one end of the connecting plate is connected to the sliding block, and the other end of the connecting plate. The utility model discloses think about novelty, reasonable in design and convenient to use, the utility model discloses a slider and shell body sliding fit to through the cooperation of the arc recess on elasticity tongue piece and the slider, form the structure that is used for firm location, the accurate control negative pressure of being convenient for, the extraction volume of convenient control silicon oil, it is respond well to use.
Description
Technical Field
The utility model belongs to the technical field of medical equipment, a ophthalmic diagnosis and treatment silicon oil extractor is related to.
Background
In ophthalmic surgery, silicone oil is used as a substitute for vitreous bodies as a temporary filler to protect the appearance of eyeballs and prevent retinal detachment and the like. The silicone oil filled into eyeballs can not be used for a long time and still is harmful for a long time, so the filled silicone oil needs to be taken out in time and an extraction mode is generally adopted.
The existing method for extracting the silicone oil is to use a special silicone oil extraction instrument or manually extract the silicone oil by using a common syringe, but the special silicone oil extraction instrument is expensive in manufacturing cost, so that the manual extraction by using the syringe is mostly adopted clinically.
Meanwhile, silicone oil for ophthalmic surgery has high viscosity, and when a common syringe is used for suction, an assistant needs to maintain a certain posture and suction strength for a long time to keep proper negative pressure. If the negative pressure is too large, the net is easy to be taken off again, and if the negative pressure is too small, the silicone oil which is already drawn out is easy to flow back to the eyeball, so that the silicone oil residue or infection risk is increased; in addition, the prior common syringe has the defects that the negative pressure can not be accurately adjusted during manual suction, and fatigue is easily caused.
SUMMERY OF THE UTILITY MODEL
In view of the problem pointed out in the background art, the utility model aims to solve the technical problem that a silicon oil extractor is used in ophthalmology diagnosis and treatment is provided to reach the accurate negative pressure of adjusting, effect of safe, convenient extraction silicon oil.
The utility model discloses technical scheme as follows: a silicone oil extractor for ophthalmic diagnosis and treatment comprises a syringe tube, wherein a piston is arranged in the syringe tube, a plunger rod is arranged on the piston, and the plunger rod extends backwards to the outside of the syringe tube; an outer shell is fixedly arranged outside the needle cylinder tube, a sliding groove is formed in the outer shell and is axially arranged along the needle cylinder tube, and a sliding block is arranged in the sliding groove and can slide along the sliding groove; the inner wall of the sliding chute is provided with a plurality of elastic tongue blocks which are uniformly distributed at intervals along the axial direction of the sliding chute, one side of each elastic tongue block, facing the sliding chute, is in a convex arc shape, and the sliding block is provided with an arc-shaped groove used for being meshed with the elastic tongue blocks; a connecting plate is arranged in the sliding groove, one end of the connecting plate is connected to the sliding block, and the other end of the connecting plate is connected to the suspension end of the plunger rod.
Further, preferably, the elastic tongue piece is formed integrally with the outer case.
Further, preferably, the sliding block and the elastic tongue block are both made of elastic plastics.
Further, preferably, the slider is formed in an arc shape along the needle cylinder tube, and correspondingly, a sliding contact portion between the outer case and the slider is also formed in an arc shape.
Further, preferably, bayonets are arranged on two side edges of the sliding block for sliding, and correspondingly, the sliding contact position of the outer shell and the sliding block is plate-shaped and is clamped into the bayonets.
Has the advantages that: the utility model discloses think about novelty, reasonable in design and convenient to use, the utility model discloses a slider and shell body sliding fit to through the cooperation of the arc recess on elasticity tongue piece and the slider, form the structure that is used for firm location, the accurate control negative pressure of being convenient for, the extraction volume of convenient control silicon oil, it is respond well to use.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the structure of the middle slider and the outer shell.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
as shown in fig. 1 to 2, the silicone oil extractor for ophthalmic surgery includes a syringe tube 1, a piston 2 disposed in the syringe tube 1, and a plunger rod 3 disposed on the piston 2, wherein the plunger rod 3 extends backward out of the syringe tube 1.
Referring to fig. 1, an outer housing 4 is fixedly disposed outside the rear section of the needle bobbin 1, a sliding groove 4a is disposed on the outer housing 4, the sliding groove 4a is axially disposed along the needle bobbin 1, a sliding block 5 is disposed in the sliding groove 4a, and the sliding block 5 can slide along the sliding groove 4 a. A plurality of elastic tongue blocks 6 which are uniformly distributed at intervals along the axial direction of the sliding chute 4a are arranged on the inner wall of the sliding chute 4 a; the elastic tongue block 6 is in a convex arc shape towards one side of the sliding groove 4a, and an arc-shaped groove used for being meshed with the elastic tongue block 6 is formed in the sliding block 5. In this embodiment, slider 5 and elasticity tongue piece 6 all adopt elastic plastic to make, can utilize the elasticity of plastics self, make slider 5 and elasticity tongue piece 6 carry out elastic fit, can form effective control to the removal of slider 5 in spout 4a, do not influence slider 5's removal ability again, guarantee the even silicone oil of collecting of long-time dynamics. Furthermore, the elastic tongue block 6 and the outer shell 4 can be integrally formed, and the outer shell 4 is also made of plastics, so that the manufacturing is more convenient, and the cost is lower.
A connecting plate 7 is arranged in the sliding groove 4a, one end of the connecting plate 7 is connected to the sliding block 5, and the other end of the connecting plate 7 is connected to the suspension end of the plunger rod 3, so that the piston 2 can be driven to synchronously move through the connecting plate 7 by controlling the sliding block 5 externally, and the effect of extracting silicon oil is achieved.
In the specific implementation process, the sliding block 5 is pushed, so that the sliding block 5 slides along the sliding groove 4a, the connecting plate 7 drives the plunger rod 3 to move, and the silicone oil is extracted from the syringe tube 1 through the piston 2. When the sliding block 5 moves along the sliding groove 4a for one section, the sliding groove 4a is meshed with the elastic tongue block 6, so that the piston 2 is stably stopped, and stable negative pressure for extracting silicon oil is formed. Therefore, the accurate control of the negative pressure can be realized, stable and proper negative pressure is formed, and the operation is convenient.
Referring to fig. 2, the slider 5 preferably has an arc shape along the needle cylinder 1, and correspondingly, the sliding contact portion between the outer case 4 and the slider 5 also has an arc shape. The structure of the arc shape is formed, which is convenient to be matched with the appearance of the needle cylinder tube 1.
Further, as a preferable technical solution, both side edges of the slider 5 for sliding are provided with bayonets 5a, and correspondingly, a sliding contact portion of the outer housing 4 and the slider 5 is plate-shaped and is snapped into the bayonets 5 a. The connection is tighter and more secure by the plate-like structure being snapped into the slider 5.
The utility model discloses when specifically using, can singlehanded grip to utilize the thumb to promote slider 5, it is very convenient to operate.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (5)
1. The utility model provides a silicon oil extractor for ophthalmology diagnoses, includes syringe barrel (1), be provided with piston (2) in syringe barrel (1), be provided with plunger rod (3) on piston (2), plunger rod (3) backward extend to outside syringe barrel (1), its characterized in that: an outer shell (4) is fixedly arranged outside the needle bobbin (1), a sliding groove (4a) is formed in the outer shell (4), the sliding groove (4a) is axially arranged along the needle bobbin (1), a sliding block (5) is arranged in the sliding groove (4a), and the sliding block (5) can slide along the sliding groove (4 a); a plurality of elastic tongue blocks (6) which are uniformly distributed at intervals along the axial direction of the sliding chute (4a) are arranged on the inner wall of the sliding chute (4a), the elastic tongue blocks (6) are in a convex arc shape towards one side of the sliding chute (4a), and arc-shaped grooves which are meshed with the elastic tongue blocks (6) are formed in the sliding block (5); a connecting plate (7) is arranged in the sliding groove (4a), one end of the connecting plate (7) is connected to the sliding block (5), and the other end of the connecting plate is connected to the suspension end of the plunger rod (3).
2. The silicone oil extractor for ophthalmic medical treatment according to claim 1, wherein: the elastic tongue piece (6) is integrally formed with the outer shell (4).
3. The silicone oil extractor for ophthalmic medical treatment according to claim 1, wherein: the sliding block (5) and the elastic tongue block (6) are both made of elastic plastics.
4. The silicone oil extractor for ophthalmic medical treatment according to claim 1, wherein: the sliding block (5) is arc-shaped along the needle bobbin (1), and correspondingly, the sliding contact part of the outer shell (4) and the sliding block (5) is also arc-shaped.
5. The silicone oil extractor for ophthalmic clinical use according to claim 4, wherein: the edge of the two sides, used for sliding, of the sliding block (5) is provided with a bayonet (5a), and correspondingly, the sliding contact part of the outer shell (4) and the sliding block (5) is plate-shaped and is clamped into the bayonet (5 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020033244.0U CN211460819U (en) | 2020-01-08 | 2020-01-08 | Silicone oil extractor for ophthalmologic diagnosis and treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020033244.0U CN211460819U (en) | 2020-01-08 | 2020-01-08 | Silicone oil extractor for ophthalmologic diagnosis and treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211460819U true CN211460819U (en) | 2020-09-11 |
Family
ID=72370421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020033244.0U Expired - Fee Related CN211460819U (en) | 2020-01-08 | 2020-01-08 | Silicone oil extractor for ophthalmologic diagnosis and treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211460819U (en) |
-
2020
- 2020-01-08 CN CN202020033244.0U patent/CN211460819U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200911 Termination date: 20220108 |
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| CF01 | Termination of patent right due to non-payment of annual fee |