CN209847562U

CN209847562U - Ophthalmic silicone oil extraction device

Info

Publication number: CN209847562U
Application number: CN201920612265.5U
Authority: CN
Inventors: 傅燕; 胡玲; 吴海霞
Original assignee: Chongqing Traditional Chinese Medicine Hospital
Current assignee: Chongqing Traditional Chinese Medicine Hospital
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2019-12-27
Anticipated expiration: 2029-04-29

Abstract

The utility model discloses an ophthalmology silicon oil draw-out device, include: the utility model relates to the technical field of ophthalmic medical equipment, which fixes a catheter by an auxiliary fixing structure and prevents the catheter from moving to influence the operation process and harm the eyes of a patient; the piston is driven to move to generate negative pressure suction force to extract silicon oil through the uniform-speed driving telescopic control of the electric push rod, so that the burden of medical personnel is reduced, the operation is ensured to be carried out under stable and constant negative pressure, and the operation failure caused by accidents is avoided; and through one-way motion control, prevent silicone oil refluence when making the pull rod extract in the motion, increase patient's misery, and the device design is simple, low in cost.

Description

Ophthalmic silicone oil extraction device

Technical Field

The utility model relates to an ophthalmology medical instrument technical field specifically is an ophthalmology silicone oil draw-out device.

Background

The combination of vitrectomy and silicone oil intraocular filling for treating retinal detachment has become a clinical routine surgical mode, silicone oil is filled into the eyes of a patient to support the retina to reset, and after the retina of the patient is completely reset, the silicone oil in the eyes of the patient is taken out;

the common method for extracting the silicone oil at present is to use a special silicone oil extraction instrument or manually extract the silicone oil by using a common syringe needle cylinder, and because the special silicone oil extraction instrument is expensive and the equipment connection and use are more complicated, the mode of manually extracting the silicone oil by using the syringe is mostly adopted clinically; the silicone oil for ophthalmic surgery has very high viscosity, when a common injector is used for pumping, an assistant is required to maintain a certain posture and pumping strength for a long time to keep proper negative pressure, if the negative pressure is too high, the net is easy to be taken off again, and if the negative pressure is too low, the pumped silicone oil is easy to flow back to the eyeball, so that silicone oil residue or infection is increased, and a greater risk exists; the device mainly has the advantages that a piston rod used for forming negative pressure in a syringe of the injector cannot be reliably and effectively positioned, the motion of the piston rod can not form reliable and stable constant negative pressure in the syringe due to the fact that the piston rod can not form pressurization or decompression in the syringe when the piston rod is accidentally touched in the operation process, operation failure is caused, pain of patients is increased, and in addition, the common injector is easy to fatigue when being manually sucked by an assistant.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an ophthalmology silicone oil draw-out device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an ophthalmic silicone oil extraction device, comprising: a mounting box, a bracket, a fixing frame, a pair of fixing sleeves with the same structure, a needle tube, two pairs of hexagon bolts, a piston, a pull rod, a conduit, a switching tube and a needle head, the mounting box is of a rectangular box body structure, the bracket is arranged on the lower wall of the mounting box, the fixing frame is arranged on the left side wall surface of the mounting box, and is positioned at the central part, a pair of the fixing sleeves are respectively arranged in the fixing frame and are parallel to each other, the needle tube is arranged in the fixed sleeve and is positioned at the central part, the two pairs of hexagon bolts are respectively arranged at the two ends of the fixed sleeve, the piston is arranged in the needle tube, one end of the pull rod is fixed on the piston, the other end of the pull rod is inserted in the installation box, one end of the catheter is connected to the left end of the needle tube, one end of the adapter tube is connected to the other end of the catheter, the needle head is arranged at the other end of the catheter, a power limiting structure is arranged in the mounting box, and an auxiliary fixing structure is arranged on the catheter;

the power limit structure comprises: the pair of ratchet wheels are arranged on the shaft body, the pair of ratchet rods are arranged on the shaft body, the pair of direction limiting wheels are arranged on the shaft body, the pair of ratchet wheels are arranged on the shaft body, the pair of power rods are arranged on the power rods, the pair of ratchet rods are arranged on the ratchet rods;

one end of each shaft body frame is respectively arranged on the left side wall and the right side wall of the other end of the pull rod and is positioned in the installation box and parallel to each other, the direction limiting wheels are respectively and fixedly sleeved on the other end of the shaft body frame, the ratchet wheels are respectively and movably sleeved on the other end of the shaft body frame and are positioned above the direction limiting wheels, one end of each power rod is respectively inserted into the front side wall and the rear side wall of the installation box and is positioned at the central part, one side of each ratchet rod is provided with oblique insections opposite to the ratchet wheels, the central part of the other side of each ratchet rod is respectively fixed on one end of the power rod and is positioned in the installation box and is meshed with the ratchet wheels, two pairs of springs are respectively arranged on the left side and the right side of the power rod, one end of each spring is fixed on the installation direction inner side wall, the other end of each ratchet rod, the electric push rod is arranged on the upper wall surface of the mounting plate, and the telescopic end is fixed at the other end of the pull rod.

Preferably, the auxiliary fixing structure includes: the device comprises a sleeve, a pair of soft frames with the same structure and a pair of clamps with the same structure;

the sleeve is sleeved on the guide pipe, one end of each of the soft frames is fixed to the left side and the right side of the sleeve respectively, and the clamps are arranged at the other end of each of the soft frames respectively.

Preferably, the shaft body frame is of an L-shaped structure.

Preferably, the lower wall surface of the ratchet wheel is provided with oblique insections opposite to the direction limiting wheel.

Preferably, the power rod is of a T-shaped structure.

Compared with the prior art, the beneficial effects of the utility model are that: the ophthalmic silicone oil extraction device fixes the catheter by connecting the clamp in the auxiliary fixing structure with the soft frame, so as to prevent movement from affecting the operation process and harming the eyes of a patient; the piston sealed in the needle tube is driven by the pull rod to move to generate negative pressure suction force to extract silicon oil through the uniform-speed driving telescopic control of the electric push rod, so that the manual operation can be replaced, the burden of medical personnel is relieved, the operation process is ensured, the extraction is kept under stable and constant negative pressure, and the operation failure caused by accidents is avoided; the ratchet wheel can rotate in one direction through the matching of the ratchet wheel and the direction limiting wheel, and the pull rod is prevented from being rewound to enable the silicone oil to flow backwards when the pull rod moves and is extracted through the matching of the ratchet wheel and the ratchet rod, so that the pain of a patient is increased, and the device is simple in design and low in manufacturing cost.

Drawings

Fig. 1 is a schematic top view of the present invention;

fig. 2 is a schematic view of the structure of the present invention;

fig. 3 is a schematic view of the structure of the right side of the present invention.

In the figure: 1. the device comprises an installation box, 2, a support, 3, a fixing frame, 4, a fixing sleeve, 5, a needle tube, 6, a hexagon bolt, 7, a piston, 8, a pull rod, 9, a guide pipe, 10, an adapter tube, 11, a needle head, 12, a shaft body frame, 13, a direction limiting wheel, 14, a ratchet wheel, 15, a power rod, 16, a ratchet rod, 17, a spring, 18, an installation plate, 19, an electric push rod, 20, a sleeve, 21, a soft body frame, 22 and a clamp.

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. 1-3, the present invention provides a technical solution: an ophthalmic silicone oil extraction device, comprising: the mounting box comprises a mounting box 1, a support 2, a fixing frame 3, a pair of fixing sleeves 4 with the same structure, a needle tube 5, two pairs of hexagonal bolts 6, a piston 7, a pull rod 8, a conduit 9, a switching tube 10 and a needle 11, wherein the mounting box 1 is of a rectangular box structure, the support 2 is arranged on the lower wall of the mounting box 1, the fixing frame 3 is arranged on the left side wall surface of the mounting box 1 and is positioned at the central part, the fixing sleeves 4 are respectively arranged in the fixing frame 3 and are parallel to each other, the needle tube 5 is arranged in the fixing sleeves 4 and is positioned at the central part, the hexagonal bolts 6 are respectively arranged on two ends of the fixing sleeves 4, the piston 7 is arranged in the needle tube 5, one end of the pull rod 8 is fixed on the piston 7, the other end of the pull rod is inserted in the mounting box 1, one end of the conduit 9, the needle 11 is arranged at the other end of the conduit 9, a power limiting structure is arranged in the installation box 1, and an auxiliary fixing structure is arranged on the conduit 9; the power limit structure comprises: a pair of shaft body frames 12 with the same structure, a pair of direction limiting wheels 13 with the same structure, a pair of ratchets 14 with the same structure, a pair of power rods 15 with the same structure, a pair of ratchet rods 16 with the same structure, two pairs of springs 17 with the same structure, a mounting plate 18 and an electric push rod 19; one end of each of the pair of shaft frames 12 is respectively arranged on the left and right side walls of the other end of the pull rod 8 and is positioned in the installation box 1 in parallel, one pair of direction limiting wheels 13 is respectively fixedly sleeved on the other end of the shaft frame 12 in a fixed manner, the ratchet wheels 14 are respectively movably sleeved on the other end of the shaft frame 12 and are positioned above the direction limiting wheels 13, one end of each of the pair of power rods 15 is respectively inserted into the front and rear side walls of the installation box 1 and is positioned at the central part, one side of each of the pair of ratchet rods 16 is provided with oblique insections opposite to the ratchet wheels 14, the other side central part of each of the pair of ratchet rods 16 is respectively fixed on one end of the power rod 15 and is positioned in the installation box 1 to be meshed with the ratchet wheels 14, two pairs of springs 17 are respectively arranged on the left and right sides of the power rods 15, one end of each of the pair of springs is, and is located near the central line below, electric putter 19 settles in the mounting panel 18 upper wall, and telescopic end is fixed on the other end of pull rod 8, supplementary fixed knot constructs, includes: a sleeve 20, a pair of soft racks 21 with the same structure and a pair of clamps 22 with the same structure; the sleeve 20 is sleeved on the guide pipe 9, one end of each of the soft frames 21 is fixed to the left side and the right side of the sleeve 20, the clips 22 are arranged at the other end of each of the soft frames 21, the shaft body frame 12 is of an L-shaped structure, the lower wall surface of the ratchet 14 is provided with inclined insections opposite to the direction limiting wheels 13, and the power rod 15 is of a T-shaped structure.

The following electric devices have the following types and functions:

electric push rod: the electric push rod with the NKLA51 model is controlled by an external operating system, and can accurately control the pull rod to move at a constant speed so as to lift the piston.

Preferably, the auxiliary fixing structure further includes: a sleeve 20, a pair of soft racks 21 with the same structure and a pair of clamps 22 with the same structure;

the sleeve 20 is sleeved on the guide tube 9, one end of each of a pair of soft frames 21 is fixed on the left side and the right side of the sleeve 20, and the other end of each of a pair of clamps 22 is arranged on the other end of the soft frame 21.

Preferably, the shaft body frame 12 is an L-shaped structure for meeting the installation requirement.

Preferably, the lower wall surface of the ratchet wheel 14 is provided with oblique insections opposite to the direction limiting wheel 13 for limiting the unidirectional rotation of the ratchet wheel 14.

Preferably, the power rod 15 is a T-shaped structure, so as to facilitate force application.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

Example (b): as can be seen from the attached figures 1-3 of the specification, firstly, the mounting box 1 is placed beside a patient through the bracket 2, after the equipment is powered on, medical staff fixes the needle 11 at the operation position of the patient and fixes two clamps 22 at a certain position through the soft body frame 21 through the sleeve 20 on the catheter 9, so as to prevent the catheter 9 from moving to cause the deviation of the needle 11; the control switch controls the electric push rod 19 on the mounting plate 18 to stretch and retract, the electric push rod 19 contracts to drive the pull rod 8 to move towards the mounting box 1, and further the piston 7 moves in the needle tube 5 to generate negative pressure, suction force is transmitted through the guide tube 9, and silicone oil flows into the adapter tube 10 from the needle head 11 and then flows into the vacuum tube through the guide tube 9; during the extraction process, the ratchet wheel 14 can only rotate in one direction through the matching of the direction limiting wheels 13 on the shaft body frames 12 at the two sides of the pull rod 8 and the ratchet wheel 14, and when the pull rod 8 is pulled inwards by the electric push rod 19, the ratchet wheel 14 can be meshed with the ratchet rod 16 fixed through the power rod 15 and the spring 17 to rotate in one direction, so that the pull rod 8 is prevented from falling back to enable the silicone oil to flow backwards; when the silicone oil is discharged after the silicone oil is extracted, the power rod 15 is manually pulled to compress the spring 17, so that the ratchet rod 16 moves towards the two sides of the ratchet wheel 14, the pull rod 8 drives the shaft body frame 12 to be outwards installed outside the box 1 through the thrust of the electric push rod 19, and the silicone oil is discharged through the piston 7.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation; also, unless expressly stated or limited otherwise, the terms "attached," "attached," and "movable" are used in a generic sense to refer to elements that are either fixedly attached or removably attached, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An ophthalmic silicone oil extraction device, comprising: the mounting box comprises a mounting box (1), a support (2), a fixing frame (3), a pair of fixing sleeves (4) with the same structure, a needle tube (5), two pairs of hexagonal bolts (6), a piston (7), a pull rod (8), a guide pipe (9), a transfer pipe (10) and a needle head (11), and is characterized in that the mounting box (1) is of a rectangular box body structure, the support (2) is arranged on the lower wall of the mounting box (1), the fixing frame (3) is arranged on the left side wall surface of the mounting box (1) and is positioned at the central part, the fixing sleeves (4) are respectively arranged in the fixing frame (3) and are parallel to each other, the needle tube (5) is arranged in the fixing sleeves (4) and is positioned at the central part, the hexagonal bolts (6) are respectively arranged at two ends of the fixing sleeves (4), the piston (7) is arranged in the needle tube (5), one end of the pull rod (, the other end of the guide pipe (9) is inserted into the installation box (1), one end of the guide pipe (9) is connected to the left end of the needle tube (5), one end of the adapter pipe (10) is connected to the other end of the guide pipe (9), the needle head (11) is arranged at the other end of the guide pipe (9), a power limiting structure is installed in the installation box (1), and an auxiliary fixing structure is installed on the guide pipe (9);

the power limit structure comprises: a pair of shaft body frames (12) with the same structure, a pair of direction limiting wheels (13) with the same structure, a pair of ratchets (14) with the same structure, a pair of power rods (15) with the same structure, a pair of ratchet rods (16) with the same structure, two pairs of springs (17) with the same structure, a mounting plate (18) and an electric push rod (19);

one end of each of the pair of shaft body frames (12) is respectively arranged on the left side wall and the right side wall of the other end of the pull rod (8) and is positioned in the installation box (1) in parallel, the pair of direction limiting wheels (13) are respectively fixedly sleeved on the other end of the shaft body frame (12) in a fixed mode, the ratchet wheel (14) is respectively movably sleeved on the other end of the shaft body frame (12) and is positioned above the direction limiting wheels (13), one end of each of the pair of power rods (15) is respectively inserted into the front side wall and the rear side wall of the installation box (1) and is positioned in the center part, one side of each of the pair of ratchet rods (16) is provided with oblique insections opposite to the ratchet wheel (14), the center part of the other side of each of the pair of ratchet rods (16) is respectively fixed on one end of the power rod (15) and is positioned in the installation box (1) and is mutually meshed with the ratchet wheel (14), and the, one end of the electric push rod (19) is fixed on the inner side wall of the installation box (1), the other end of the electric push rod is fixed on the side wall of the ratchet rod (16), the installation plate (18) is arranged on the right side wall surface in the installation box (1) and is located below the central line, and the electric push rod is arranged on the upper wall surface of the installation plate (18) and is fixed at the other end of the pull rod (8).

2. An ophthalmic silicone oil extraction device as defined in claim 1, wherein: the auxiliary fixing structure includes: a sleeve (20), a pair of soft racks (21) with the same structure and a pair of clamps (22) with the same structure;

the sleeve (20) is sleeved on the guide pipe (9), one end of each of the pair of soft frames (21) is fixed to the left side and the right side of the sleeve (20), and the pair of clamps (22) is arranged at the other end of each of the soft frames (21).

3. An ophthalmic silicone oil extraction device as defined in claim 1, wherein: the shaft body frame (12) is of an L-shaped structure.

4. An ophthalmic silicone oil extraction device as defined in claim 1, wherein: the lower wall surface of the ratchet wheel (14) is provided with oblique insections opposite to the direction limiting wheel (13).

5. An ophthalmic silicone oil extraction device as defined in claim 1, wherein: the power rod (15) is of a T-shaped structure.