CN111388188A

CN111388188A - Novel injection device

Info

Publication number: CN111388188A
Application number: CN202010176414.5A
Authority: CN
Inventors: 康海军; 黄冬梅
Original assignee: Suining Central Hospital
Current assignee: Suining Central Hospital
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-07-10
Anticipated expiration: 2040-03-13
Also published as: CN111388188B

Abstract

The invention relates to the field of ophthalmic medical instruments and discloses a novel injector which comprises a hollow needle head, wherein an air bag which is inflated and can expand outwards to fill an anterior chamber of an eye, is exhausted and can be contracted into the hollow needle head is arranged at the position, close to the front end, in the hollow needle head, and the hollow needle head is connected with an injection piece which can be inflated and exhausted. The invention can realize the purposes of assisting the cornea laceration debridement suturing and increasing the success rate, firstly, the iris is separated from the cornea laceration, and then the air bag is injected into the anterior chamber of the eye, thereby avoiding the anterior adhesion of the iris caused by insufficient suturing depth during the cornea laceration debridement suturing or the dislocation of the inner surface of the laceration after the suture is knotted, and being capable of more effectively performing the debridement suturing on the cornea laceration.

Description

Novel injection device

Technical Field

The invention relates to the field of ophthalmic medical instruments, in particular to a novel injector.

Background

The corneal laceration debridement suturing operation is an operation for better completing corneal laceration repair, corneal trauma is most common in ocular trauma, and the corneal laceration wounds are different in size and shape, so that the suturing mode is different, such as corneal deformity, high irregular astigmatism and thick scar formation caused by improper treatment, and blindness can be caused by extensive iris adhesion, corneal fistula, secondary glaucoma, balloon infection and the like. Therefore, great attention must be paid to the treatment of corneal lacerations.

When the depth of the suture is not enough, the inner opening of the corneal laceration is opened, the iris is often adhered to the inner opening, or the inner surface of the split is dislocated after the suture is knotted, the iris is easily adhered in front under the condition, Healon is usually used for separating the iris adhered in front, so that the corneal laceration is required to be repaired at the corneal laceration position when the problems occur after the corneal laceration debridement suture, the corneal laceration debridement suture is more complicated, and the success rate of the corneal laceration debridement suture is not increased. Therefore, an operation instrument which can assist the corneal laceration debridement suture and increase the success rate is urgently needed.

Disclosure of Invention

Based on the above problems, the present invention provides a novel injector. The invention can realize the purposes of assisting the cornea laceration debridement suturing and increasing the success rate, firstly, the iris is separated from the cornea laceration, and then the air bag is injected into the anterior chamber of the eye, thereby avoiding the anterior adhesion of the iris caused by insufficient suturing depth during the cornea laceration debridement suturing or the dislocation of the inner surface of the laceration after the suture is knotted, and being capable of more effectively performing the debridement suturing on the cornea laceration.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the utility model provides a novel injection ware, includes hollow syringe needle, is equipped with near the front end department in the hollow syringe needle and inflates and can outwards expand to fill the gasbag that the anterior chamber of eye bled and can contract in the hollow syringe needle, hollow syringe needle and the injection spare that can inflate and bleed are connected.

In the invention, the hollow needle head penetrates through the cornea from the eyeball bulge to extend into the anterior chamber of the eye, the injection piece is used for filling disinfection air into the air bag in the hollow needle head, the air bag in the hollow needle head is expanded outward of the hollow needle head, the air bag is filled in the anterior chamber of the eye, the iris is separated from the cornea, meanwhile, the surfaces of the cornea and the air bag are attached, the cornea dislocation at the corneal lacerated part is prevented, the corneal laceration suture is facilitated, after the corneal laceration suture is finished, the disinfection air in the air bag is pumped out through the injection piece, the air bag is contracted into the hollow needle head after the disinfection air is pumped out, and then the hollow needle head is pulled out from the cornea, thereby realizing the purposes of assisting the corneal laceration debridement suture and increasing the success rate. The invention can realize the purposes of assisting the cornea laceration debridement suturing and increasing the success rate, firstly, the iris is separated from the cornea laceration, and then the air bag is injected into the anterior chamber of the eye, thereby avoiding the anterior adhesion of the iris caused by insufficient suturing depth during the cornea laceration debridement suturing or the dislocation of the inner surface of the laceration after the suture is knotted, and being capable of more effectively performing the debridement suturing on the cornea laceration.

Preferably, the balloon is hemispherical after being inflated, the thickness of the balloon wall on the side of the balloon close to the cornea gradually becomes thicker from the center to the edge, the thickness of the balloon wall on the side of the balloon far from the cornea is the same, the balloon is accommodated in the hollow needle head in an umbrella shape, the balloon is close to the needle head of the hollow needle head, and the side of the balloon close to the cornea is communicated with the hollow needle head.

As a preferred mode, an air guide film for sealing the inner tube of the hollow needle is arranged in the hollow needle, an air guide tube is arranged between the air guide film and the air bag, one end of the air guide tube is communicated with the air guide film, and the other end of the air guide tube is communicated with the air bag.

As an optimal mode, the injection device comprises a plastic hose connected with a hollow needle, the plastic hose is detachably connected with a nipple of an injection piece, the nipple can be inserted into a pipe orifice of the plastic hose, a protective cap capable of being pulled out outwards is arranged on the hollow needle, and a sealing cover capable of being pulled out outwards and used for sealing the pipe orifice of the plastic hose is arranged at one end of the plastic hose close to the injection piece.

As a preferred mode, the plastic hose is provided with a fixing frame capable of fixing the plastic hose and preventing the hollow needle head from inclining, and the upper part of the fixing frame can be attached to the forehead.

As an optimal mode, the fixing frame comprises an arc-shaped block which can be attached to the forehead, a paster is arranged on one side of the arc-shaped block which is attached to the forehead, a hanging rod which extends to the front of eyes is arranged on the arc-shaped block, and a C-shaped hanging head which is used for clamping and fixing a plastic hose is arranged on the hanging rod.

As a preferable mode, the injector includes an empty cylinder, and a piston capable of moving back and forth is arranged in the empty cylinder.

As a preferred mode, the piston comprises a pushing head attached to the inner wall of the hollow cylinder and a piston shaft capable of controlling the pushing head to move in the hollow cylinder and provided with threads, a sealing head with a threaded through hole is arranged at the opening of the hollow cylinder, and the piston shaft penetrates through the threaded through hole.

As a preferable mode, the end part of the piston shaft outside the hollow cylinder is provided with an extension handle parallel to the end part of the piston shaft, and the extension handle is provided with a control handle vertically attached to the extension handle.

As a preferred mode, the end face of the sealing head is circular, and a prompt line pointing to the circle center is arranged at one end, away from the hollow cylinder, of the sealing head.

Compared with the prior art, the invention has the beneficial effects that:

(1) the invention can realize the purposes of assisting the cornea laceration debridement suturing and increasing the success rate, firstly, the iris is separated from the cornea laceration, and then the air bag is injected into the anterior chamber of the eye, thereby avoiding the phenomenon that the suturing depth is not enough when the cornea laceration debridement suturing or the inner surface of the crack is dislocated after the suture is knotted, causing the front adhesion of the iris, and being capable of performing the debridement suturing on the cornea laceration more effectively;

(2) the invention can realize that the air bag is hemispherical after being inflated, and meanwhile, the air bag is accommodated in the hollow needle head to form an umbrella shape, so that the air bag can fill the anterior chamber of the eye when being inflated;

(3) the invention can realize that the piston shaft pushes the injection head to move in the hollow cylinder through the transmission of the sealing head thread, can more effectively control the inflation quantity of the air bag, and is convenient for a doctor to ensure the molding size of the air bag;

(4) the invention can prevent the hollow needle head from inclining by fixing the plastic hose by the fixing frame, and can effectively prevent the hollow needle head from shaking;

drawings

Fig. 1 is a schematic diagram of the application structure of the present invention.

Fig. 2 is a schematic view of a hollow needle of the present invention passing through the cornea.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Figure 4 is a schematic view of the balloon of the present invention inflated into the anterior chamber of the eye.

Fig. 5 is an enlarged schematic view of a portion B in fig. 4.

Fig. 6 is a schematic perspective view of the fixing frame.

Fig. 7 is a front structural view of the fixing frame.

Fig. 8 is a schematic structural view of the plastic hose.

FIG. 9 is a schematic diagram of the control end of the injector.

Wherein, 1 hollow needle head, 110 protective cap, 2 anterior chamber of eye, 3 gasbag, 4 injection parts, 410 vent, 420 hollow cylinder, 421 nipple, 430 piston, 431 injection head, 432 piston shaft, 433 extension handle, 434 control handle, 440 sealing head, 441 prompt line, 5 air guide film, 6 air guide tube, 7 plastic hose, 710 sealing cover, 711 screw thread through hole, 8 fixing frame, 810 paster, 820 hanging rod, 830C type hanging head, 840 arc block, 9 cornea.

Detailed Description

The invention will be further described with reference to the accompanying drawings. Embodiments of the present invention include, but are not limited to, the following examples.

Example 1:

referring to fig. 1, 2, 3, 4 and 5, a novel injector comprises a hollow needle 1, a balloon 3 which is inflated to expand outwards to fill the anterior chamber 2 of the eye and is deflated to the hollow needle 1 is arranged in the hollow needle 1 near the front end, and the hollow needle 1 is connected with an injection piece 4 which can be inflated and deflated.

In this example, the hollow needle 1 penetrates the cornea 9 from the eyeball bulge to extend into the anterior chamber 2 of the eye, referring to fig. 4, the injecting piece 4 is used for filling disinfection air into the air bag 3 in the hollow needle 1, so that the air bag 3 in the hollow needle 1 is expanded outward to the hollow needle 1, the material of the air bag 3 can adopt medical silica gel, the air bag 3 is filled in the anterior chamber 2 of the eye, the iris is separated from the cornea 9, meanwhile, the cornea 9 can be attached to the surface of the air bag 3, the cornea 9 at the fracture position is prevented from being misplaced, the fracture suture of the cornea 9 is facilitated, after the fracture suture of the cornea 9 is completed, the disinfection air in the air bag 3 is pumped out through the injecting piece 4, the air bag 3 is contracted into the hollow needle 1 after the disinfection air bag is pumped out, and the hollow needle 1 is pulled out from the cornea 9, and the purposes of assisting the fracture wound debridement suture of the cornea 9 and increasing the success rate are achieved. The invention can realize the purposes of assisting the debridement and suture of the cornea 9 laceration and increasing the success rate, firstly, the iris is separated from the cornea 9 laceration, and then the air bag 3 is injected into the anterior chamber 2 of the eye, thereby avoiding the anterior adhesion of the iris caused by insufficient suture depth when the debridement and suture of the cornea 9 laceration is performed or the dislocation of the inner surface of the laceration occurs after the suture is knotted, and being capable of performing the debridement and suture of the cornea 9 laceration more effectively.

Example 2:

the utility model provides an operation equipment of supplementary cornea 9 laceration debridement suturing, includes hollow syringe needle 1, is equipped with near the front end in the hollow syringe needle 1 to inflate and can outwards expand to fill the gasbag 3 that the anterior chamber 2 of eye bled and can contract in hollow syringe needle 1, and hollow syringe needle 1 is connected with 4 of pushing of injecting that can inflate and bleed.

Referring to fig. 4 and 5, it can be seen that the balloon 3 is hemispherical after being inflated, the thickness of the wall of the balloon 3 close to the cornea 9 gradually increases from the center to the edge, the balloon 3 is accommodated in the hollow needle 1 in an umbrella shape, the balloon 3 is close to the needle of the hollow needle 1, and the side where the balloon 3 is attached to the cornea 9 is communicated with the hollow needle 1.

The air bag 3 is hemispherical after being inflated, and is accommodated in the hollow needle head 1 in an umbrella shape and close to the needle head of the hollow needle head 1, so that the air bag 3 can be filled in the anterior chamber 2 of the eye after being filled with the sterilizing gas and can be accommodated in the hollow needle head 1 after being pumped out of the sterilizing gas, the thickness of the bag wall of the air bag 3 close to the cornea 9 is gradually thickened from the center to the edge, the air bag 3 is arched and deformed close to the cornea 9 after being filled with the sterilizing gas and is attached to the cornea 9, the thickness of the bag wall of the air bag 3 far from the cornea 9 is the same, the air bag 3 far from the cornea 9 is almost on the same plane after being inflated, and the air bag 3 is filled in the anterior chamber 2 of the eye after being inflated.

The diameter of the opened hemisphere of the air bag 3 is about 1cm, the central width is about 3mm, and the thickness of the wall of the air bag 3 is between 0.1mm and 0.5 mm.

Referring to fig. 3, as a preferred mode, an air guide film 5 for sealing an inner tube of the hollow needle 1 is arranged in the hollow needle 1, an air guide tube 6 is arranged between the air guide film 5 and the air bag 3, one end of the air guide tube 6 is communicated with the air guide film 5, and the other end of the air guide tube 6 is communicated with the air bag 3.

The guide film is matched with the air duct 6, the transmission of the disinfection air to the air bag 3 can be limited, the air bag 3 is connected with the air duct 6, so that the disinfection air is transmitted to the air bag 3, the air bag 3 can conveniently enter the anterior chamber 2 of the eye after being filled with the disinfection air, and the air bag 3 can conveniently contract into the hollow needle head 1 after the disinfection air in the air bag 3 is pumped out.

The other parts of this embodiment are the same as embodiment 1, and are not described herein again.

Example 3:

Referring to fig. 1, 2, 4 and 8, it can be known that the disposable injector comprises a plastic hose 7 connected with a hollow needle 1, the plastic hose 7 is detachably connected with a nipple 421 of the injector 4, the nipple 421 can be inserted into a nozzle of the plastic hose 7, the hollow needle 1 is provided with a protective cap 110 capable of being pulled out, and one end of the plastic hose 7, which is close to the injector 4, is provided with a sealing cap 710 capable of being pulled out to seal the nozzle of the plastic hose 7.

The connection can be dismantled to plastic hose 7 and the nipple 421 of injecting 4, and nipple 421 can insert the 7 mouths in tubes of plastic hose, be favorable to making plastic hose 7 and injecting 4 separation of piece, be convenient for separately deposit plastic hose 7 and injecting 4, see fig. 7, hollow syringe needle 1 can be protected to the protective sheath on the hollow syringe needle 1 not contaminated, sealed lid 710 is with the orificial sealed of plastic hose 7, is favorable to making keeping clean in the plastic hose 7.

The plastic hose 7 has elasticity, so that the nipple 421 is in interference fit with the plastic hose 7 when inserted into the plastic hose 7, thereby effectively preventing the plastic hose from being separated from the nipple on the injection member 4.

Referring to fig. 1, as a preferred mode, the plastic hose 7 is provided with a fixing frame 8 capable of fixing the plastic hose 7 to prevent the hollow needle 1 from inclining, and the upper part of the fixing frame 8 can be attached to the forehead.

When the hollow needle 1 is inserted into the anterior chamber 2 of the eye, the air bag 3 needs to be inflated, so that the position of the hollow needle 1 cannot be limited, the hollow needle 1 is easily inclined in the cornea 9, the air bag 3 cannot be filled into the anterior chamber 2 of the eye, the plastic hose 7 is fixed by the fixing frame 8 attached to the forehead, the hollow needle 1 is righted by the fixing frame 8, and the hollow needle 1 is prevented from being inclined due to no external force fixation at the position of the hollow needle 1 when the air bag 3 is inflated.

Referring to fig. 1, 6 and 7, as a preferred mode, the fixing frame 8 includes an arc block 840 capable of being attached to the forehead, a patch 810 is disposed on one side of the arc block 840 attached to the forehead, a hanging rod 820 extending to the front of the eye is disposed on the arc block 840, and a C-shaped hanging head 830 for fastening the plastic hose 7 is disposed on the hanging rod 820.

The arc block 840 is fixed at the forehead by the patch 810, so that the hanging rod 820 on the arc block 840 can extend to the front of the eye, and after the needle is inserted into the anterior chamber 2 of the eye, the plastic hose 7 is clamped on the C-shaped hanging head 830.

Example 4:

Referring to fig. 1, 2, 3 and 4, the bolus 4 includes an empty cylinder 420, and a piston 430 capable of moving back and forth is disposed in the empty cylinder 420.

The airbag 3 can be inflated and deflated by means of a piston 430 which can be moved back and forth inside the hollow cylinder 420. The hollow cylinder can be provided with scale marks, so that a doctor can conveniently observe the movement of the piston and calculate the injected gas.

Referring to fig. 1, 2, 3 and 4, as a preferred mode, the piston 430 includes a pushing head 431 attached to the inner wall of the hollow cylinder 420 and a piston shaft 432 with threads capable of controlling the pushing head 431 to move in the hollow cylinder 420, a sealing head 440 with a threaded through hole 711 is arranged at the cylinder opening of the hollow cylinder 420, and the piston shaft 432 passes through the threaded through hole 711.

By rotating the piston shaft 432, the piston shaft 432 is rotated at the threaded through hole 711 of the sealing head 440, so that the piston shaft 432 can drive the injection head 431 to advance to inject the disinfection air in the empty cylinder 420 into the air bag 3 or drive the injection head 431 to retreat backwards to pump the disinfection air in the air bag 3 back into the empty cylinder 420, and the piston shaft 432 is rotated at the threaded through hole 711 to control the advance and retreat of the injection head 431, thereby effectively controlling the injection or retreat of the disinfection air into the air bag 3 and enabling a user to judge the disinfection air injected into the air bag 3 according to the number of turns of the piston shaft 432.

Referring to fig. 1, 2 and 4, as a preferred mode, an extension handle 433 parallel to the end of the piston shaft 432 is provided at the end of the piston shaft 432 outside the hollow cylinder 420, and a control handle 434 vertically attached to the extension handle 433 is provided.

The rotation of the plunger shaft 432 is facilitated by holding the lever 434 and rotating the lever 434 on the extension handle 433 along the plunger shaft 432.

Referring to fig. 9, as a preferable mode, the end surface of the sealing head 440 is circular, and a prompt line 441 pointing to the center of the circle is arranged at one end of the sealing head 440 away from the hollow cylinder 420.

The volume of the sterilizing gas which can be filled in the air bag 3 can be calculated by one circle of the rotary piston shaft 432 through calculating the advancing distance of the injection head 431 for one circle of the rotary piston shaft 432 according to the inner diameter of the hollow cylinder 420, a doctor can calculate how many times the piston shaft 432 needs to be rotated before the operation to enable the air bag 3 to fill the anterior chamber 2 of the eye, and the indication line pointing to the circle center on the sealing head 440 can facilitate the calculation of the rotation number of the piston shaft 432 by the doctor.

The above is an embodiment of the present invention. The embodiments and specific parameters in the embodiments are only used for clearly illustrating the verification process of the invention and are not used for limiting the patent protection scope of the invention, which is defined by the claims, and all the equivalent structural changes made by using the contents of the description and the drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel injector is characterized in that: including hollow syringe needle (1), be equipped with near front end department in hollow syringe needle (1) and inflate and can outwards expand filling eyes anterior chamber (2) and bleed and can contract gasbag (3) in hollow syringe needle (1), hollow syringe needle (1) and can inflate and the injection piece (4) connection of bleeding.

2. The novel injector of claim 1, wherein: be hemispherical after gasbag (3) aerifys, gasbag (3) are close to the bag wall thickness to cornea (9) one side from the center to the edge grow gradually the thickening gradually, gasbag (3) are kept away from cornea (9) one side bag wall thickness and are the same, gasbag (3) are accomodate into umbelliform in hollow syringe needle (1), gasbag (3) are close to the syringe needle department of hollow syringe needle (1), gasbag (3) and cornea (9) laminating one side and hollow syringe needle (1) intercommunication.

3. The novel injector of claim 2, wherein: be equipped with air guide membrane (5) of sealed hollow syringe needle (1) inner tube in hollow syringe needle (1), be equipped with air duct (6) between air guide membrane (5) and gasbag (3), air duct (6) one end and air guide membrane (5) intercommunication, air duct (6) other end and gasbag (3) intercommunication.

4. The novel injector of claim 1, wherein: the plastic hose (7) is connected with the hollow needle (1), the plastic hose (7) is detachably connected with a nipple (421) of the injection piece (4), the nipple (421) can be inserted into a tube orifice of the plastic hose (7), the hollow needle (1) is provided with a protective cap (110) which can be pulled out outwards, and the plastic hose (7) is provided with a sealing cover (710) which can be pulled out outwards and is used for sealing the tube orifice of the plastic hose (7) and is close to one end of the injection piece (4).

5. The novel injector of claim 4, wherein: the plastic hose (7) is provided with a fixing frame (8) capable of fixing the plastic hose (7) to prevent the hollow needle (1) from inclining, and the upper part of the fixing frame (8) can be attached to the forehead.

6. The novel injector of claim 5, wherein: the fixing frame (8) comprises an arc-shaped block (840) capable of being attached to the forehead, a patch (810) is arranged on one side of the arc-shaped block (840) attached to the forehead, a hanging rod (820) extending to the front of eyes is arranged on the arc-shaped block (840), and a C-shaped hanging head (830) used for clamping and fixing a plastic hose (7) is arranged on the hanging rod (820).

7. The novel injector of claim 1, wherein: the injection piece (4) comprises an empty cylinder (420), and a piston (430) capable of moving back and forth is arranged in the empty cylinder (420).

8. The novel injector of claim 7, wherein: the piston (430) comprises a pushing injection head (431) attached to the inner wall of the hollow cylinder (420) and a piston shaft (432) capable of controlling the pushing injection head (431) to move in the hollow cylinder (420) and provided with threads, a sealing head (440) with a threaded through hole (711) is arranged at the opening of the hollow cylinder (420), and the piston shaft (432) penetrates through the threaded through hole (711).

9. The novel injector of claim 8, wherein: the piston shaft (432) end part outside the hollow cylinder (420) is provided with an extension handle (433) parallel to the piston shaft (432), and the extension handle (433) is provided with a control handle (434) vertically attached to the extension handle.

10. The novel injector of claim 9, wherein: the end face of the sealing head (440) is circular, and a prompt line (441) pointing to the circle center is arranged at one end, far away from the hollow cylinder (420), of the sealing head (440).