CN214157667U - Disposable aseptic capsule bag tension ring injector - Google Patents
Disposable aseptic capsule bag tension ring injector Download PDFInfo
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- CN214157667U CN214157667U CN202022589993.4U CN202022589993U CN214157667U CN 214157667 U CN214157667 U CN 214157667U CN 202022589993 U CN202022589993 U CN 202022589993U CN 214157667 U CN214157667 U CN 214157667U
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- push rod
- tension ring
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Abstract
The utility model relates to the technical field of ophthalmic surgical instruments, in particular to a disposable aseptic bag tension ring injector, which comprises a shell, wherein a push rod is connected in the shell in a sliding way, the front end of the push rod is provided with a push needle, the shell is detachably connected with an injection head, the injection head comprises a mounting block and an injection pipe which are fixedly connected, and one end of the injection pipe is relatively provided with an opening; one end of the push needle is provided with a hook, and the other end of the push needle is fixedly connected with the push rod through a connecting rod; the push needle is sleeved with the injection pipe in a sliding way; the push rod is including the fixed block, stopper and the sliding block that connect gradually, fixed block and connecting rod fixed connection, and the shell inner wall is equipped with the spacing groove, stopper and spacing groove sliding connection, and the installation piece includes fixed connection's external piece and built-in piece, is equipped with in the shell to cup joint in the spring in the push pin outside, and spring one end is inconsistent with built-in piece, the other end and push rod joint, the push rod be equipped with the cell body of spring looks adaptation, the utility model has the advantages of convenient and fast, aseptic safety, promptly throw away promptly, more can adapt to the needs that use.
Description
Technical Field
The utility model relates to the technical field of ophthalmic surgical instruments, in particular to a disposable aseptic capsule bag tension ring injector.
Background
The capsular tension ring is generally a compressible open ring that is placed within the capsular bag and against the capsular bag membrane to maintain capsular tension in a manner that the capsular membrane folds back to resist capsular contraction and maintain capsular integrity. Capsular tension rings are generally circular, oval, rectangular or regular polygonal in cross-section with 2 or more pilot holes, and are used by implantation in the capsular bag to treat congenital subluxation of the lens, rupture of zonules before and during surgery, fragility of zonules, risk of capsular folds, especially in patients with high myopia.
In order to implant the capsular tension ring into the eye of a patient, the previous stage is that a doctor implants the capsular tension ring with surgical forceps, which is inconvenient, currently, the clinical use of the tension ring injector is that the tension ring injector is usually non-preassembled, and generally comprises a cylindrical injector main body, a push injection head, a push rod, a spring and other parts, wherein the push injection head is provided with a slender circular guide tube with a certain radian, the front end part of the push rod is provided with a filament with the diameter of about 0.3mm, the front end of the filament is hook-shaped and is used for matching with a capsular tension ring positioning hole to load the tension ring, the whole product is made of medical metal materials and is reused, the product is subjected to wet heat sterilization treatment before use, and needs to be cleaned after use.
However, when the injector is used for implantation, the injector can contact viscoelastic agent and the like, the viscoelastic agent enters the guide tube, and the injector is not easy to clean and cannot be cleaned completely, so that the next implantation is influenced, the injection is not smooth, and even the plug is blocked, so that the tension ring is broken and the like. And increases the risk of secondary infection for the patient.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a disposable aseptic bag tension ring injector which is convenient to operate, disposable and good in effect.
In order to achieve the above object, the utility model provides a following technical scheme: the disposable sterile capsular tension ring injector comprises a shell, wherein a push rod is connected in the shell in a sliding manner, a push needle is arranged at the front end of the push rod, an injection head is detachably connected with the shell and comprises a mounting block and an injection pipe which are fixedly connected, and an opening is formed in one end of the injection pipe in an opposite manner;
one end of the push needle is provided with a hook, and the other end of the push needle is fixedly connected with the push rod through a connecting rod;
the push needle is sleeved with the injection pipe in a sliding manner;
the push rod is including the fixed block, stopper and the sliding block that connect gradually, the fixed block with connecting rod fixed connection, the shell inner wall is equipped with the spacing groove, the stopper with spacing groove sliding connection.
Further, the shell is provided with a handheld portion, and the handheld portion is provided with anti-skidding lines.
Furthermore, the mounting block comprises an external block and an internal block which are fixedly connected.
Furthermore, threads are arranged on the outer side of the built-in block, and the built-in block is in threaded connection with the shell.
Furthermore, the built-in block is provided with a clamping block, the shell is provided with a clamping groove, and the built-in block is clamped with the shell through the clamping block.
Furthermore, the external block is abutted to the outer shell, and a first sealing strip is arranged at the joint of the external block and the outer shell.
Furthermore, a spring sleeved outside the push needle is arranged in the shell, one end of the spring is abutted against the built-in block, and the other end of the spring is clamped with the push rod.
Furthermore, the push rod is provided with a groove body matched with the spring.
Furthermore, one end of the push rod, which is far away from the shell, is in threaded connection with a pushing block.
Furthermore, a second sealing strip is arranged at the joint of the shell and the push rod.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides an aseptic bag tension ring injector of disposable, can disinfect and disinfect sealed package when production is accomplished, tear the usefulness promptly when using open, the inconvenient abluent drawback of traditional injector used repeatedly has been changed, the difficult washing has been solved, the influence is implanted next time, inject not in the same direction as smoothly leading to the cracked problem of tension ring, facilitate the use, use up and just throw away, more adapt to actual need, and this injector is the vacuum setting, need add liquid medicine etc. in the injector, can loosen the push rod, can inhale the injector with the liquid medicine.
The utility model discloses an opening makes the crotch when catching on bag tension ring, fix a position bag tension ring to the release direction or the moving direction of bag tension ring are injectd, avoid bag tension ring to produce and rock in the process of pushing, ensure its release stability, the crotch can catch on one side of bag tension ring, be convenient for bag tension ring to place or inhale, can promote the ejector pin through the push rod and move forward, make the ejector pin can get into in the injection head, and stretch out from the injection pipe, thereby drive bag tension ring and stretch out from the injection pipe; push pin and spring can be fixed through the fixed block to can carry out spacingly through the removal that the stopper can be to the push rod, prevent that the push rod from extracting or excessively injecting, can adjust according to the in service behavior, more adapt to the needs that use.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view i of the present invention;
fig. 3 is a cross-sectional view ii of the present invention;
FIG. 4 is an enlarged view of the utility model at A;
FIG. 5 is an enlarged view of point A of the present invention;
FIG. 6 is an enlarged view of the point B of the present invention;
FIG. 7 is an enlarged view of the point C of the present invention;
fig. 8 is an enlarged view of the position D of the present invention.
In the figure: the injection device comprises a shell-1, a push rod-2, a push needle-3, an injection head-4, an installation block-5, an injection pipe-6, a hook-7, a connecting rod-8, a fixing block-9, a limiting block-10, a sliding block-11, a limiting groove-12, a handheld part-13, an external block-14, an internal block-15, a clamping block-16, a clamping groove-17, a sealing strip-18, a spring-19, a groove body-20, a pushing block-21, a sealing strip-22 and an opening-23.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-8, the disposable sterile capsular tension ring injector comprises a housing 1, the housing 1 is made of plastic, which may be PP, a push rod 2 is slidably connected in the housing 1, a push needle 3 is disposed at the front end of the push rod 2, the housing 1 is detachably connected with an injection head 4, the injection head 4 includes a mounting block 5 and an injection pipe 6, which are fixedly connected, one end of the injection pipe 6 is relatively provided with an opening 23, the diameter direction of the opening 23 is perpendicular to the diameter direction of a hook 7 of the push needle 13, so that when the hook 7 hooks the capsular tension ring, the capsular tension ring can pass through the opening 23, when the capsular tension ring is loaded in the injection pipe 6 or pushed out from the injection pipe 6, a part of the capsular tension ring is placed in the opening 23, thereby positioning the capsular tension ring through the opening 23, thereby defining the pushing direction or moving direction of the capsular tension ring, and avoiding shaking of the capsular tension ring during pushing, the pushing stability is ensured, one end of the push needle 3 is provided with a hook 7, the hook 7 can hook one side of the bag tension ring, the other end of the push needle is fixedly connected with the push rod 2 through a connecting rod 8, the push needle 3 is in sliding sleeve joint with the injection pipe 6, the push needle 3 can be pushed to move forwards through the push rod 2, the push needle 3 can enter the injection head 4 and extend out of the injection pipe 6, and therefore the bag tension ring is driven to extend out of the injection pipe 6;
The shell 1 is provided with a handheld part 13, and the handheld part 13 is provided with anti-skid grains, so that medical staff can conveniently hold and use the shell.
The mounting block 5 comprises an external block 14 and an internal block 15 which are fixedly connected, the outer side of the internal block 15 is provided with threads, and the internal block 15 is in threaded connection with the shell 1;
or
The built-in block 15 is provided with a clamping block 16, the shell 1 is provided with a clamping groove 17, and the built-in block 15 is clamped with the shell 1 through the clamping block 16;
the attachment block 5 and the housing 1 can be fixed by the screw of the built-in block 15, the locking block 16, and the locking groove, and the filler pipe 6 and the housing 1 can be fixed.
The external block 14 is inconsistent with the shell 1, a first sealing strip 18 is arranged at the joint of the external block 14 and the shell 1, a second sealing strip 22 is arranged at the joint of the shell 1 and the push rod 2, and the air can be prevented from entering the shell 1 through the first sealing strip 18 and the second sealing strip 22 and being polluted by microorganisms in the air.
Be equipped with in the shell 1 and cup joint in the spring 19 in the 3 outsides of push pin, spring 19 one end is inconsistent with built-in piece 15, the other end and 2 joints of push rod, push rod 2 be equipped with the cell body 20 of spring 19 looks adaptation, through spring 19's setting, need overcome spring 19's elasticity when injecting to can make the process of injecting more stable.
One end threaded connection that shell 1 was kept away from to push rod 2 has and promotes piece 21, makes things convenient for the staff to inject through promoting piece 21, and the diameter that promotes piece 21 is great, can guarantee that the injector atress is stable, and prevents that the user of service from being injured or uncomfortable injecting the in-process.
The working principle is as follows: when the injection device is used, the push rod 2 is pressed down through the push block 21, the push rod 2 pushes the push needle 3 to move forwards, the push needle 3 can enter the injection head 4 and extend out of the injection pipe 6 to expose the hook 7, the eye of the bag tension ring is hooked through the hook 7, then the push rod 2 is slowly released, the bag tension ring is pulled into a pipeline of the injection pipe 6 along the curve of the bag tension ring, and when the bag tension ring is completely pulled into the injection pipe 6, the push rod 2 can be released. At this point, the capsular tension ring is ready for implantation into the capsular bag.
The capsular tension ring injector is aligned to the incision position of the affected eye so that the capsular tension ring can enter the capsular bag, and the capsular tension ring is implanted into the capsular bag by applying thrust to the push rod 2 of the capsular tension ring injector, so that the capsular tension ring slowly moves clockwise and naturally moves forward along the curve of the capsular bag. When the capsular tension ring is fully implanted, the capsular tension ring is released from the hooks 7 on the push pin 3 of the capsular tension ring injector.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. Aseptic bag tension ring injector of disposable, including shell (1), sliding connection has push rod (2) in shell (1), push rod (2) front end is equipped with push pin (3), its characterized in that: the injection head (4) is detachably connected to the shell (1), the injection head (4) comprises a mounting block (5) and an injection pipe (6) which are fixedly connected, and one end of the injection pipe (6) is oppositely provided with an opening (23);
one end of the push needle (3) is provided with a hook (7), and the other end of the push needle is fixedly connected with the push rod (2) through a connecting rod (8);
the push needle (3) is sleeved with the injection pipe (6) in a sliding manner;
push rod (2) are including fixed block (9), stopper (10) and sliding block (11) that connect gradually, fixed block (9) with connecting rod (8) fixed connection, shell (1) inner wall is equipped with spacing groove (12), stopper (10) with spacing groove (12) sliding connection.
2. The single use sterile capsular tension ring injector according to claim 1, wherein: the shell (1) is provided with a handheld portion (13), and the handheld portion (13) is provided with anti-skidding lines.
3. The single use sterile capsular tension ring injector according to claim 1, wherein: the mounting block (5) comprises an external block (14) and an internal block (15) which are fixedly connected.
4. The single use sterile capsular tension ring injector according to claim 3 wherein: the outer side of the built-in block (15) is provided with threads, and the built-in block (15) is in threaded connection with the shell (1).
5. The single use sterile capsular tension ring injector according to claim 3 wherein: the built-in block (15) is provided with a clamping block (16), the shell (1) is provided with a clamping groove (17), and the built-in block (15) is clamped with the shell (1) through the clamping block (16).
6. The single use sterile capsular tension ring injector according to claim 3 wherein: the external block (14) is abutted to the outer shell (1), and a first sealing strip (18) is arranged at the joint of the external block (14) and the outer shell (1).
7. The single use sterile capsular tension ring injector according to claim 3 wherein: the push pin is characterized in that a spring (19) sleeved on the outer side of the push pin (3) is arranged in the shell (1), one end of the spring (19) is abutted to the built-in block (15), and the other end of the spring is clamped with the push rod (2).
8. The single use sterile capsular tension ring injector according to claim 7 wherein: the push rod (2) is provided with a groove body (20) matched with the spring (19).
9. The single use sterile capsular tension ring injector according to claim 1, wherein: and a pushing block (21) is connected to one end, far away from the shell (1), of the push rod (2) in a threaded manner.
10. The single use sterile capsular tension ring injector according to claim 1, wherein: and a second sealing strip (22) is arranged at the joint of the shell (1) and the push rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022589993.4U CN214157667U (en) | 2020-11-10 | 2020-11-10 | Disposable aseptic capsule bag tension ring injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022589993.4U CN214157667U (en) | 2020-11-10 | 2020-11-10 | Disposable aseptic capsule bag tension ring injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214157667U true CN214157667U (en) | 2021-09-10 |
Family
ID=77599799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022589993.4U Active CN214157667U (en) | 2020-11-10 | 2020-11-10 | Disposable aseptic capsule bag tension ring injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214157667U (en) |
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2020
- 2020-11-10 CN CN202022589993.4U patent/CN214157667U/en active Active
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