Manual disposable silicone oil taking-out device

Abstract

The utility model relates to a manual disposable silicone oil take-out device which comprises a cylinder body, a piston rod and a piston block, the piston rod is movably installed in the cylinder body, and the piston block attached to the inner wall of the cylinder body is fixedly installed on the left side of the piston rod. According to the manual disposable silicone oil taking-out device, a storage bag is arranged, a switch on a micro valve is pressed to be closed, then a pressing block is pressed to drive a movable sleeve to move and compress a spring telescopic column, then a flow guide pipe is opened, and a pull block is pushed to drive a piston rod to move; a piston rod moves to drive a piston block to move, silicone oil in a barrel is extruded into a connecting pipe and flows into a flow guide pipe to be stored in a storage bag, after the silicone oil in the barrel is completely extruded, a pressing block is loosened to enable a spring telescopic column to rebound and drive a movable sleeve to move, and the movable sleeve moves to be in contact with a fixed sleeve, so that the flow guide pipe is closed; and then the micro valve is opened again to enable the barrel to extract the silicone oil again, so that the barrel can extract the silicone oil for multiple times.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a manual disposable silicone oil removal device. Background Art

[0002] Vitrectomy, intraretinal photocoagulation, and silicone oil filling in the vitreous cavity are important surgical methods for treating retinal detachment. Silicone oil filling in the vitreous cavity can reconstruct the connection between the detached retina and the underlying pigment epithelial cells through top pressure. However, long-term silicone oil filling in the eye can cause many complications, so silicone oil should usually be removed from the vitreous cavity after 3 to 6 months of silicone oil filling. When complications of silicone oil filling occur and it is impossible to obtain a vitrectomy machine or use the negative pressure established by the cutter to remove the silicone oil, a convenient and easy-to-use manual silicone oil removal device is particularly important.

[0003] The Chinese patent number is CN208525215U, which is an ophthalmic silicone oil extraction device. The patent can prevent silicone oil reflux through the grooves and elastic rods on the push-pull rod, and does not require the assistant to maintain the suction posture for a long time, which is beneficial to reduce the assistant's fatigue. However, the ophthalmic silicone oil extraction device in this patent can only be used once during use. When the silicone oil in the syringe reaches the limit and the silicone oil in the eyeball has not been completely extracted, the silicone oil in the syringe cannot be released, and the medical staff needs to replace the syringe again. The replacement is more troublesome, which leads to increased operation time. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a manual disposable silicone oil removal device, which has the advantage of being easy to extract silicone oil and solves the problem that the ophthalmic silicone oil extraction device can only extract once during use. When the silicone oil in the syringe reaches the limit and the silicone oil in the eyeball has not been completely extracted, the silicone oil in the syringe cannot be released, and the medical staff needs to replace the syringe again, which is troublesome and leads to increased operation time.

[0005] In order to achieve the above-mentioned purpose of facilitating the extraction of silicone oil, the utility model provides the following technical solutions: a manual disposable silicone oil extraction device, comprising a cylinder, a piston rod and a piston block, the cylinder having a piston rod movably installed inside, a piston block abutting against the inner wall of the cylinder fixedly installed on the left side of the piston rod, a fixing block fixedly installed on the right side of the cylinder, a pulling block fixedly installed on the right side of the piston rod, a connecting pipe fixedly installed on the left side of the cylinder, a micro valve fixedly installed on the connecting pipe, a joint pipe clamped on the left side of the connecting pipe, a silicone oil conduit fixedly installed on the left side of the joint pipe, a needle fixedly installed on the left side of the silicone oil conduit, a fixing mechanism connected to the piston rod is provided on the top of the fixing block, and a storage mechanism connected to the connecting pipe is provided on the bottom of the cylinder;

[0006] The storage mechanism includes a connecting plate, a connecting plate is fixedly installed on the bottom of the cylinder, a storage bag is fixedly installed on the bottom of the connecting plate, a guide tube connected to the connecting tube is fixedly installed on the top of the storage bag, a fixed sleeve is sleeved on the outside of the guide tube, a spring telescopic column is fixedly installed on the right inner wall of the fixed sleeve, a movable sleeve extending to the outside of the left side of the fixed sleeve is fixedly installed on the left side of the spring telescopic column, and a pressing block is fixedly installed on the left side of the movable sleeve and on the left side of the fixed sleeve.

[0007] Furthermore, a plug rod extending into the interior is movably mounted on the top of the fixed block, a compression block is fixedly mounted on the outside of the plug rod, a first spring is sleeved on the outside of the plug rod, and a limiting groove matching the plug rod is provided on the top of the piston rod.

[0008] Furthermore, the cylinder, piston rod, piston block, fixing block, pulling block and connecting tube form a completed syringe, and the micro valve includes a valve body and a switch button.

[0009] Furthermore, a scale is provided on the front outer surface of the storage bag, the guide tube is a hose, and through holes adapted to the guide tube are provided inside the fixed sleeve and the movable sleeve.

[0010] Furthermore, a movable hole adapted to the movable sleeve is provided on the left side of the fixed sleeve, and the diameter of the pressing block is larger than the diameter of the movable hole.

[0011] Furthermore, seven limiting grooves are provided on the top of the piston rod, and the seven limiting grooves are distributed at equal distances. The top end of the first spring is connected to the inner top wall of the fixed block, and the other end is connected to the top of the compression block.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] 1. The manual disposable silicone oil removal device is provided with an insertion rod. The insertion rod is pulled to move so as to drive the compression block to move. The compression block compresses the first spring to shorten and store force. When the piston rod moves and drives the piston block to move to a specified distance, the insertion rod is released so that the first spring is not controlled by pressure and then rebounds, and drives the compression block to move. The movement of the compression block drives the insertion rod to move and insert into the limiting groove inside the piston rod, so that the piston rod is fixed, and the position between the piston block and the cylinder body is kept fixed, so that the piston rod can be simply, reliably and effectively fixed and positioned, and the movement of the piston rod in the cylinder body is effectively restricted to ensure that a reliable and relatively stable negative pressure can be formed inside the cylinder body, thereby reducing intraocular pressure fluctuations during surgery and thus alleviating postoperative reactions.

[0014] 2. The manual disposable silicone oil extraction device is provided with a storage bag. When the silicone oil in the cylinder is extracted to the limit, the switch on the micro valve is pressed to close it, and then the pressing block is pressed to drive the movable sleeve to move and compress the spring telescopic column. At this time, the through holes between the movable sleeve and the fixed sleeve overlap, so that the guide tube is opened, and then the pull block is pushed to drive the piston rod to move, so that the piston rod moves and drives the piston block to move to squeeze the silicone oil in the cylinder into the connecting tube. After the connecting tube is closed, the silicone oil will flow into the inside of the guide tube, and flow into the storage bag through the opened guide tube for storage. When the silicone oil in the cylinder is completely squeezed out, the pressing block is released to allow the spring telescopic column to rebound after being free from pressure restriction and drive the movable sleeve to move. The movable sleeve moves to cause it to collapse with the fixed sleeve, thereby closing the guide tube, and then the micro valve is opened again to allow the cylinder to extract silicone oil again, thereby achieving the effect that the cylinder can extract silicone oil multiple times. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 A partial cross-sectional view of a first spring provided by the utility model;

[0017] Figure 3 This is a partial cross-sectional view of the movable sleeve provided by the utility model.

[0018] In the figure: 1. cylinder; 2. piston rod; 3. piston block; 4. fixing block; 5. pulling block; 6. connecting pipe; 7. micro valve; 8. connecting pipe; 9. silicone oil guide tube; 10. needle; 11. fixing mechanism; 1101. insertion rod; 1102. compression block; 1103. first spring; 1104. limiting groove; 12. storage mechanism; 1201. connecting plate; 1202. storage bag; 1203. guide tube; 1204. fixing sleeve; 1205. spring telescopic column; 1206. movable sleeve; 1207. pressing block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3The manual disposable silicone oil removal device in this embodiment includes a cylinder 1, a piston rod 2 and a piston block 3. The piston rod 2 is movably installed inside the cylinder 1, and the piston block 3 that is attached to the inner wall of the cylinder 1 is fixedly installed on the left side of the piston rod 2. A fixing block 4 is fixedly installed on the right side of the cylinder 1, and a pulling block 5 is fixedly installed on the right side of the piston rod 2. A connecting pipe 6 is fixedly installed on the left side of the cylinder 1, and a micro valve 7 is fixedly installed on the connecting pipe 6. A joint pipe 8 is clamped on the left side of the connecting pipe 6, and a silicone oil conduit 9 is fixedly installed on the left side of the joint pipe 8. A needle 10 is fixedly installed on the left side of the silicone oil conduit 9, and a fixing mechanism 11 connected to the piston rod 2 is provided on the top of the fixing block 4, and a storage mechanism 12 connected to the connecting pipe 6 is provided on the bottom of the cylinder 1;

[0021] The storage mechanism 12 includes a connecting plate 1201, a connecting plate 1201 is fixedly installed at the bottom of the cylinder 1, a storage bag 1202 is fixedly installed at the bottom of the connecting plate 1201, the pull block 5 is pushed to drive the piston rod 2 to move, so that the piston rod 2 moves and drives the piston block 3 to move to squeeze the silicone oil inside the cylinder 1 to the connecting tube 6, and after the connecting tube 6 is closed, the silicone oil will flow into the inside of the guide tube 1203, and then flow into the storage bag 1202 through the opened guide tube 1203 for storage, and the top of the storage bag 1202 is fixedly installed with a guide tube 1203 connected to the connecting tube 6, and the pressing block 1207 is pressed to drive the movable sleeve 1206 to move and compress the spring telescopic column 1205, at this time, the through holes between the movable sleeve 1206 and the fixed sleeve 1204 coincide, so that the guide tube 1203 Open, the outer part of the guide tube 1203 is connected with a fixed sleeve 1204, the right inner wall of the fixed sleeve 1204 is fixedly installed with a spring telescopic column 1205, the left side of the spring telescopic column 1205 is fixedly installed with a movable sleeve 1206 extending to the left outside of the fixed sleeve 1204, and the left side of the movable sleeve 1206 and the left side of the fixed sleeve 1204 are fixedly installed with a pressing block 1207. When the silicone oil inside the cylinder 1 is completely squeezed out, the pressing block 1207 is released to allow the spring telescopic column 1205 to rebound after being free from pressure restriction and drive the movable sleeve 1206 to move. The movable sleeve 1206 moves to make it reciprocate with the fixed sleeve 1204, thereby closing the guide tube 1203, and then the microvalve 7 is opened again to allow the cylinder 1 to extract silicone oil again, thereby achieving the effect that the cylinder 1 can extract silicone oil multiple times.

[0022] In the implementation of the case, a plug rod 1101 extending to the inside of the fixed block 4 is movably installed on the top of the fixed block 4. The plug rod 1101 is pulled to move so that it drives the compression block 1102 to move. The compression block 1102 is fixedly installed on the outside of the plug rod 1102. The outside of the plug rod 1101 is sleeved with a first spring 1103. The compression block 1102 compresses the first spring 1103 to shorten and store force. When the piston rod 2 moves and drives the piston block 3 to move to a specified distance, the plug rod 1101 is released to make the first spring 1103 rebound after being freed from pressure control, and drive the compression block 1102 to move. The top of the piston rod 2 is provided with a limiting groove 1104 which is compatible with the insertion rod 1101. The movement of the compression block 1102 drives the insertion rod 1101 to move and insert into the limiting groove 1104 inside the piston rod 2, so that the piston rod 2 is fixed, so that the position between the piston block 3 and the cylinder 1 remains fixed, so that the piston rod 2 can be fixed and positioned simply, reliably and effectively, and the movement of the piston rod 2 in the cylinder 1 is effectively restricted to ensure that a reliable and relatively stable negative pressure can be formed inside the cylinder 1, thereby reducing intraocular pressure fluctuations during surgery and thus alleviating postoperative reactions.

[0023] When implementing, follow these steps:

[0024] 1) When the silicone oil inside the cylinder 1 is extracted to the limit, press the switch on the micro valve 7 to close it;

[0025] 2) Then press the pressing block 1207 to drive the movable sleeve 1206 to move and compress the spring telescopic column 1205. At this time, the through holes between the movable sleeve 1206 and the fixed sleeve 1204 overlap, so that the guide tube 1203 is opened;

[0026] 3) Push the pull block 5 to drive the piston rod 2 to move, so that the movement of the piston rod 2 drives the piston block 3 to move and squeeze the silicone oil inside the cylinder 1 to the connecting pipe 6;

[0027] 4) After being sealed by the connecting tube 6, the silicone oil will flow into the interior of the guide tube 1203, and then flow into the storage bag 1202 through the opened guide tube 1203 for storage;

[0028] 5) After the silicone oil inside the cylinder 1 is completely squeezed out, the pressing block 1207 is released to allow the spring telescopic column 1205 to rebound without being restricted by pressure and drive the movable sleeve 1206 to move. The movable sleeve 1206 moves to make it collapse with the fixed sleeve 1204, thereby closing the guide tube 1203;

[0029] 6) Finally, the micro valve 7 is opened again to allow the cylinder 1 to extract the silicone oil again, so that the cylinder 1 can extract the silicone oil multiple times.

[0030] To summarize, the manual disposable silicone oil removal device is provided with an insertion rod 1101, and the insertion rod 1101 is pulled to move so that it drives the compression block 1102 to move. The compression block 1102 compresses the first spring 1103 to shorten the stored force. When the piston rod 2 moves and drives the piston block 3 to move to a specified distance, the insertion rod 1101 is released so that the first spring 1103 is not controlled by pressure and rebounds, and drives the compression block 1102 to move. The movement of the compression block 1102 drives the insertion rod 1101 to move and insert into the limiting groove 1104 inside the piston rod 2, so that the piston rod 2 is fixed, and the position between the piston block 3 and the cylinder 1 is kept fixed, so that the piston rod 2 can be simply, reliably and effectively fixed and positioned, and the movement of the piston rod 2 in the cylinder 1 is effectively restricted to ensure that a reliable and relatively stable negative pressure can be formed inside the cylinder 1, thereby reducing intraocular pressure fluctuations during surgery and thus alleviating postoperative reactions.

[0031] In addition, by setting the storage bag 1202, when the silicone oil inside the cylinder 1 is extracted to the limit, the switch on the micro valve 7 is pressed to close it, and then the pressing block 1207 is pressed to drive the movable sleeve 1206 to move and compress the spring telescopic column 1205. At this time, the through holes between the movable sleeve 1206 and the fixed sleeve 1204 overlap, so that the guide tube 1203 is opened, and then the pull block 5 is pushed to drive the piston rod 2 to move, so that the movement of the piston rod 2 drives the piston block 3 to move and squeeze the silicone oil inside the cylinder 1 to the connecting pipe 6, and the connecting pipe 6 is sealed. After closing, the silicone oil will flow into the interior of the guide tube 1203, and then flow into the storage bag 1202 through the opened guide tube 1203 for storage. When the silicone oil inside the cylinder 1 is completely squeezed out, release the pressing block 1207 to allow the spring telescopic column 1205 to rebound without being restricted by pressure and drive the movable sleeve 1206 to move. The movable sleeve 1206 moves to make it reciprocate with the fixed sleeve 1204, thereby closing the guide tube 1203, and then open the microvalve 7 again to allow the cylinder 1 to extract the silicone oil again, thereby achieving the effect that the cylinder 1 can extract the silicone oil multiple times.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A manual disposable silicone oil removal device, comprising a cylinder (1), a piston rod (2) and a piston block (3), characterized in that: A piston rod (2) is movably mounted inside the cylinder (1); a piston block (3) abutting against the inner wall of the cylinder (1) is fixedly mounted on the left side of the piston rod (2); a fixing block (4) is fixedly mounted on the right side of the cylinder (1); a pulling block (5) is fixedly mounted on the right side of the piston rod (2); a connecting pipe (6) is fixedly mounted on the left side of the cylinder (1); a micro valve (7) is fixedly mounted on the connecting pipe (6); a joint pipe (8) is clamped on the left side of the connecting pipe (6); a silicone oil conduit (9) is fixedly mounted on the left side of the joint pipe (8); a needle (10) is fixedly mounted on the left side of the silicone oil conduit (9); a fixing mechanism (11) connected to the piston rod (2) is arranged on the top of the fixing block (4); and a storage mechanism (12) connected to the connecting pipe (6) is arranged on the bottom of the cylinder (1); The storage mechanism (12) comprises a connecting plate (1201), the connecting plate (1201) being fixedly mounted on the bottom of the cylinder (1), a storage bag (1202) being fixedly mounted on the bottom of the connecting plate (1201), a flow guide tube (1203) connected to the connecting tube (6) being fixedly mounted on the top of the storage bag (1202), a fixed sleeve (1204) being sleeved on the outside of the flow guide tube (1203), a spring telescopic column (1205) being fixedly mounted on the right inner wall of the fixed sleeve (1204), a movable sleeve (1206) extending to the outside of the left side of the fixed sleeve (1204) being fixedly mounted on the left side of the spring telescopic column (1205), and a pressing block (1207) being fixedly mounted on the left side of the movable sleeve (1206) and located on the left side of the fixed sleeve (1204).

2. The manual disposable silicone oil removal device according to claim 1, characterized in that: The top of the fixed block (4) is movably mounted with an insertion rod (1101) extending into the interior thereof, the outside of the insertion rod (1101) is fixedly mounted with a compression block (1102), the outside of the insertion rod (1101) is sleeved with a first spring (1103), and the top of the piston rod (2) is provided with a limiting groove (1104) adapted to the insertion rod (1101).

3. The manual disposable silicone oil removal device according to claim 1, characterized in that: The cylinder (1), the piston rod (2), the piston block (3), the fixing block (4), the pulling block (5) and the connecting tube (6) form a completed syringe, and the micro valve (7) comprises a valve body and a switch button.

4. The manual disposable silicone oil removal device according to claim 1, characterized in that: The front outer surface of the storage bag (1202) is provided with a scale, the guide tube (1203) is a hose, and the interiors of the fixed sleeve (1204) and the movable sleeve (1206) are both provided with through holes that are compatible with the guide tube (1203).

5. The manual disposable silicone oil removal device according to claim 1, characterized in that: A movable hole matching the movable sleeve (1206) is provided on the left side of the fixed sleeve (1204), and the diameter of the pressing block (1207) is larger than the diameter of the movable hole.

6. The manual disposable silicone oil removal device according to claim 2, characterized in that: The top of the piston rod (2) is provided with seven limit grooves (1104), and the seven limit grooves (1104) are distributed at equal distances. The top end of the first spring (1103) is connected to the inner top wall of the fixed block (4), and the other end is connected to the top of the compression block (1102).

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