Silicone oil injection joint and pneumatic silicone oil injection device

Abstract

The utility model belongs to the technical field of silicone oil injection devices for ophthalmologic operations, and particularly discloses a silicone oil injection connector and a pneumatic silicone oil injection device, the silicone oil injection connector comprises a connector body, a connecting pipe is arranged at the top of the connector body, and a sealing ring is sleeved on a plunger at the bottom of the connector body. The top of the connector body is provided with the connecting pipe used for being connected with the air inflation piece, the plunger at the bottom of the connector body is sleeved with the sealing ring, and therefore a glass cylinder can be conveniently connected, and a doctor can conveniently push and inject silicone oil through air pressure. The pneumatic silicone oil pushing injection device comprises a glass cylinder, an inflation part and a silicone oil pushing injection connector, the inflation part is communicated with the glass cylinder in a sealed mode through the silicone oil pushing injection connector, pressure gas is input into the glass cylinder through the inflation part, the advancing speed of a piston is controlled, and therefore the silicone oil pushing injection flow is controlled. The purposes of reducing the labor intensity of doctors, improving the injection efficiency and ensuring the injection uniformity and accuracy are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of silicone oil injection device in ophthalmic surgery, especially relates to a silicone oil injection connector and a pneumatic silicone oil injection device. BACKGROUND

[0002] In ophthalmic surgery, especially after vitrectomy (referred to as vitrectomy), silicone oil filling is a crucial step. Silicone oil is a highly efficient intraocular filler and is widely used in the treatment of retinal detachment and other eye diseases. It can effectively support the retina, promote retinal repositioning and prevent further detachment.

[0003] However, in actual operation, the physical properties of silicone oil pose a great challenge to surgery. Silicone oil is very viscous and has a high density, which makes it difficult to overcome the resistance during injection. The existing manual injector directly pushes the plunger of the injector with both hands, which requires a lot of force to slide the piston in the syringe and push the silicone oil out of the syringe. Although it can meet the demand of silicone oil injection to some extent, the cumbersome operation, slow injection speed and uneven injection force greatly increase the difficulty and complexity of the surgery. Specifically, when using the existing injector to inject silicone oil, the doctor needs to exert a lot of force to overcome the viscous resistance of the silicone oil, which not only makes the doctor feel extremely tired during the operation, but also may cause the operation time to be prolonged. At the same time, due to the uneven injection speed, it is difficult for the doctor to accurately control the injection amount of silicone oil, thereby increasing the risk and uncertainty of the operation. In addition, uneven injection force may also cause unnecessary damage to intraocular tissues, affecting the operation effect and postoperative recovery of the patient.

[0004] Therefore, the inventors have designed a silicone oil injection injector to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a silicone oil injection connector that can connect an inflatable member and a glass cylinder, making it convenient for doctors to use air pressure to inject silicone oil.

[0006] Another purpose of the utility model is to provide a pneumatic silicone oil injection device that can reduce the labor intensity of doctors, improve the injection efficiency, and ensure the uniformity and accuracy of the injection.

[0007] In order to achieve the above purpose, the utility model adopts a technical scheme:

[0008] A silicone oil injection connector, comprising a connector body, a pipe is arranged on the top of the connector body, a plunger is arranged on the bottom of the connector body, a sealing ring is arranged on the plunger, and the air inlet hole at the bottom of the plunger is coaxially communicated with the air hole of the pipe.

[0009] As an improvement of the silicone oil push injection connector of the utility model, a plug-in slot is arranged at the bottom of the connector body, the plunger is located in the plug-in slot, and two corresponding inner side walls of the plug-in slot are respectively provided with clamping grooves.

[0010] As an improvement of the silicone oil push injection connector of the utility model, the plunger, the connector and the connector body are integrally formed, and the plug-in slot and the two clamping grooves penetrate through the two side walls of the connector body.

[0011] As an improvement of the silicone oil push injection connector of the utility model, the bottom wall end of each clamping groove is sleeved with a pad sleeve, and the pad sleeve is made of elastic material.

[0012] As an improvement of the silicone oil push injection connector of the utility model, each pad sleeve is connected with the bottom wall end of the clamping groove through a plurality of fixing columns, and all the fixing columns are matched with a plurality of fixing holes on the bottom wall of the clamping groove.

[0013] As an improvement of the silicone oil push injection connector of the utility model, the pad sleeve is in the shape of a long strip, and all the fixing columns are arranged in the opening of the pad sleeve.

[0014] As an improvement of the silicone oil push injection connector of the utility model, a limiting block is arranged at the inner lower corner of the clamping groove, a limiting groove is arranged at the edge of the pad sleeve, and the limiting groove is matched with the limiting block.

[0015] As an improvement of the silicone oil push injection connector of the utility model, a mounting groove is arranged on the plunger, the sealing ring is located in the mounting groove, and the outer diameter of the sealing ring is greater than the outer diameter of the plunger.

[0016] In order to achieve the above-mentioned another purpose, a technical scheme adopted by the utility model is as follows:

[0017] A pneumatic silicone oil push injection device, comprising a glass cylinder, an air charging member and the above-mentioned silicone oil push injection connector, the air charging member is communicated with the glass cylinder through the silicone oil push injection connector, the plunger is located in the glass cylinder and is sealingly connected with the glass cylinder through the sealing ring, and a piston is slidingly connected in the glass cylinder.

[0018] As an improvement of the pneumatic silicone oil push injection device of the utility model, a clamping table is arranged at the opening of the glass cylinder, two corresponding inner side walls of the plug-in slot at the bottom of the connector body are respectively provided with clamping grooves, the bottom wall end of each clamping groove is sleeved with a pad sleeve, the glass cylinder is located between the two pad sleeves, the clamping table has a waist-shaped contour and forms an outward convex part at both ends of the long axis, and the two outward convex parts are respectively arranged in the two clamping grooves and respectively abut against the two pad sleeves.

[0019] Compared with the prior art, the silicone oil injection connector of the utility model, through setting the connecting pipe on the top of the connector body, the inflatable part is conveniently connected, and the sealing ring is set on the plunger at the bottom of the connector body, the glass cylinder is conveniently connected, so that the doctor utilizes the air pressure to inject the silicone oil.

[0020] Compared with the prior art, the pneumatic silicone oil injection injection device of the utility model, through the silicone oil injection connector, the inflatable part and the glass cylinder are sealed and communicated, the inflatable part is utilized to input the pressure gas into the glass cylinder, the speed of the piston in the glass cylinder is controlled to control the size of the silicone oil injection flow, the purpose of reducing the labor intensity of the doctor, improving the injection efficiency, ensuring the uniformity and accuracy of the injection is achieved, which helps to improve the operation effect and promote the postoperative rehabilitation of the patient. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the perspective enlarged view of the silicone oil injection connector of the utility model;

[0022] Figure 2 is the perspective enlarged view of the silicone oil injection connector of the utility model from another perspective;

[0023] Figure 3 is the perspective exploded enlarged view of the silicone oil injection connector of the utility model;

[0024] Figure 4 is the perspective exploded enlarged view of the silicone oil injection connector of the utility model from another perspective;

[0025] Figure 5 is the sectional enlarged view of the silicone oil injection connector of the utility model;

[0026] Figure 6 is the perspective view of the injection part in the pneumatic silicone oil injection injection device of the utility model;

[0027] Figure 7 is the perspective exploded view of the injection part in the pneumatic silicone oil injection injection device of the utility model;

[0028] Figure 8 is the partial sectional view of the injection part in the pneumatic silicone oil injection injection device of the utility model.

[0029] ILLUSTRATIVE DESCRIPTION

[0030] 1, connector body;11, connecting pipe;111, air hole;12, clamping groove;121, fixing hole;122, limiting block;13, plunger;131, air inlet hole;14, insertion slot;2, pad sleeve;21, opening;22, fixed column;23, limiting groove;3, sealing ring;4, glass cylinder;41, clamping table;42, piston;5, silicone oil;6, air pipe. DETAILED DESCRIPTION

[0031] The embodiments of the present application will be illustrated in detail below with reference to the drawings, which are used only for reference and illustration, and do not constitute a limitation to the scope of protection of the present application.

[0032] With reference to Figures 1 to 5 A silicone oil injection connector comprises a connector body 1 and a sealing ring 3, the top of the connector body 1 is provided with a connector pipe 11, the bottom of the connector body 1 is provided with a plunger 13, the sealing ring 3 is sleeved on the plunger 13, and the air inlet hole 131 at the bottom of the plunger 13 is coaxially communicated with the air hole 111 of the connector pipe 11.

[0033] With reference to Figure 3 , Figure 4 and Figure 5 The connector pipe 11 is coaxially arranged with the air hole 111 thereof, the bottom of the connector body 1 is provided with a insertion slot 14, the two corresponding inner side walls of the insertion slot 14 are respectively provided with clamping grooves 12, the insertion slot 14 and the two clamping grooves 12 both penetrate through the front and rear side walls of the connector body 1, the center of the inner lower corner of each clamping groove 12 is provided with a limiting block 122, the bottom wall of each clamping groove 12 is provided with a plurality of fixing holes 121, the plunger 13 is located in the insertion slot 14, the plunger 13 is provided with a ring-shaped mounting groove, and the plunger 13, the connector pipe 11 and the connector body 1 are integrally formed from the same material.

[0034] With reference to Figure 2 , Figure 3 and Figure 4 The sealing ring 3 is annular and located in the mounting groove of the plunger 13, the outer diameter of the sealing ring 3 is greater than the outer diameter of the plunger 13, the bottom wall of each clamping groove 12 is sleeved with a pad sleeve 2, the pad sleeve 2 is made of elastic material, the two pad sleeves 2 are both long strips, the two pad sleeves 2 are the same in structure and opposite in mounting direction, each pad sleeve 2 is connected with the bottom wall of the clamping groove 12 through a plurality of fixing columns 22, specifically, the left pad sleeve 2 is hollowed out to form an opening 21 at the left side, the right pad sleeve 2 is hollowed out to form another opening 21 at the right side, a plurality of fixing columns 22 are arranged in the opening 21 of each pad sleeve 2, all the fixing columns 22 in the same pad sleeve 2 are matched with the plurality of fixing holes 121 on the bottom wall of the corresponding clamping groove 12, in order to prevent the pad sleeve 2 from moving, a limiting groove 23 is arranged at the upper edge of each pad sleeve 2, and the limiting groove 23 is matched with the corresponding limiting block 122.

[0035] With reference to Figures 6 to 8The utility model discloses a kind of pneumatic silicone oil bolus injection devices, including a glass cylinder 4, a gas filling member and the above-mentioned silicone oil bolus connector, gas filling member is sealed with glass cylinder 4 by silicone oil bolus connector Communication, specifically, glass cylinder 4 is slidably connected with a piston 42, the piston 42 will the inner cavity of glass cylinder 4 be divided into upper and lower two spaces, the space below piston 42 in glass cylinder 4 is equipped with silicone oil 5, the space above piston 42 in glass cylinder 4 is sequentially communicated with gas filling member by air hole 131, air hole 111 and air pipe 6, plunger 13 and sealing ring 3 are located in glass cylinder 4, sealing ring 3 is elastically pressed the lateral wall of glass cylinder 4 opening, so that plunger 13 is sealed with glass cylinder 4 by sealing ring 3, the opening of glass cylinder 4 top is equipped with a circle of clamping table 41, the clamping table 41 has waist type profile and forms outer convex portion at its long axis both ends, the two outer convex portions are set in two clamping grooves 12 one by one and press two pad sleeves 2 one by one, glass cylinder 4 is located between two pad sleeves 2, two pad sleeves 2 not only can provide flexible contact for the contact of glass cylinder 4 and connector body 1, prevent glass cylinder 4 from being damaged, but also can lock glass cylinder 4, so that the whole silicone oil bolus injection device is more firm and safer in the process of use.

[0036] With reference to Figures 6 to 8 The pneumatic silicone oil bolus injection device of the utility model can be quickly assembled, that is, first, the two short shaft portions of the clamping table 41 of the glass cylinder 4 are aligned with the insertion slot 14 of the silicone oil bolus connector and are inserted into the insertion slot 14, at this time, the plunger 13 and the sealing ring 3 are located in the glass cylinder 4, so that the plunger 13 is sealed with the inner wall of the glass cylinder 4, the glass cylinder 4 is rotated, so that the two long shaft portions of the clamping table 41 of the glass cylinder 4 are correspondingly rotated into the two clamping grooves 12, the silicone oil bolus connector is connected with the glass cylinder 4, and the assembly of the pneumatic silicone oil bolus injection device is completed, the air pipe 6 of the gas filling member is inserted into the connector pipe 11 of the silicone oil bolus connector, the gas filling member is quickly connected with the silicone oil bolus connector, and the pneumatic silicone oil bolus injection device is assembled.

[0037] The gas filling member sequentially injects pressure gas into the space above the piston 42 in the glass cylinder 4 through the air pipe 6, the air hole 111 and the air inlet hole 131, the pressure gas is converted into pressure, the piston 42 is pushed forward, the piston 42 presses the silicone oil 5 in the space below the piston 42 in the glass cylinder 4, and the silicone oil 5 is extruded from the outlet at the end of the glass cylinder 4, the utility model controls the speed of the piston 42 by adjusting the size of the gas pressure, so as to control the size of the silicone oil 5 bolus injection flow, and the starting and stopping of the piston 42 are controlled by stopping the gas, so as to control the start or end of the silicone oil 5 bolus injection.

[0038] The pneumatic silicone oil bolus injection device has the following beneficial effects:

[0039] (1) both hands are released, only one hand holds the pneumatic silicone oil injection device, and the other hand can perform other surgical operations;

[0040] (2) without manual pushing, directly using pneumatic control, the silicone oil injection can be quickly realized, time and labor are saved;

[0041] (3) the pneumatic control silicone oil injection makes the flow of silicone oil 5 uniform, the control of the silicone oil 5 pushing amount is facilitated, the total amount of the silicone oil 5 injection can be accurately controlled, the phenomena of insufficient or excessive silicone oil 5 filling are avoided, the pain of the patient is reduced, the patient recovers fast, and the surgical effect is good.

[0042] The above disclosed is only the preferred embodiment of the utility model, which cannot limit the right protection range of the utility model, therefore, the equivalent changes made in the patent application range of the utility model still belong to the range covered by the utility model.

Claims

1. A silicone oil push-in fitting, characterized by, The joint body is provided with a connector at the top and a plunger at the bottom, and the plunger is provided with a sealing ring.

2. The silicone oil priming adapter of claim 1, wherein, The bottom of the joint body is provided with a slot, and the plunger is located in the slot.

3. The silicone oil priming adapter of claim 2, wherein, The plunger, the connector and the joint body are integrally formed, and the slot and the two clamping grooves penetrate the two side walls of the joint body.

4. The silicone oil priming adapter of claim 2, wherein, The bottom wall of each clamping groove is provided with a pad sleeve at the end, and the pad sleeve is made of elastic material.

5. The silicone oil priming adapter of claim 4, wherein, Each pad sleeve is connected to the end of the bottom wall of the clamping groove through a plurality of fixing columns, and all the fixing columns are matched with a plurality of fixing holes on the bottom wall of the clamping groove.

6. The silicone oil priming adapter of claim 5, wherein, The pad sleeve is long strip-shaped, and all the fixing columns are arranged in the opening of the pad sleeve.

7. The silicone oil priming adapter of claim 4, wherein, The inner lower corner of the clamping groove is provided with a limiting block, and the edge of the pad sleeve is provided with a limiting groove matched with the limiting block.

8. The silicone oil priming adapter of claim 1, wherein, The plunger is provided with a mounting groove, and the sealing ring is located in the mounting groove.

9. A gas powered silicone oil bolus injection device characterized by, The glass cylinder is provided with a clamping table at the opening, and the bottom of the joint body is provided with a clamping groove on the corresponding inner side wall.

10. The gas-powered silicone oil bolus injection device of claim 9, wherein, The bottom wall of each clamping groove is provided with a pad sleeve at the end, and the glass cylinder is located between the two pad sleeves. The clamping table has a waist-shaped contour and forms convex parts at both ends of the long axis, and the two convex parts are arranged in the two clamping grooves and press the two pad sleeves respectively.

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