CN218793396U

CN218793396U - Visual retrobulbar block anesthesia syringe

Info

Publication number: CN218793396U
Application number: CN202122927213.7U
Authority: CN
Inventors: 涂瑞雪; 俞阿勇; 陈天予
Original assignee: Eye Hospital of Wenzhou Medical University
Current assignee: Eye Hospital of Wenzhou Medical University
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2023-04-07
Anticipated expiration: 2031-11-26

Abstract

The utility model discloses a visual ball back blocking anesthesia injector, which comprises a housin, the outer tube, the needle tubing, the endoscope, the syringe pump, the transfer line, the outer tube is fixed in the one end of casing, be equipped with the shell chamber in the casing, the needle tubing runs through the casing in proper order, the outer tube, the needle tubing is equipped with the syringe needle, the syringe pump is connected to the needle tubing, the endoscope includes display and camera, the camera is located the outer tube and is kept away from the one end of casing, the camera is connected with the display electricity, when the outer tube stretches into the muscle awl, the camera on the outer tube can show the environmental conditions that the outer tube stretches into the direction on the display, doctor can keep away from important tissue such as eyeball, blood vessel, optic nerve with the syringe needle of needle tubing through observing the display screen, make the syringe needle of needle tubing puncture the locus of blocking anesthesia behind the ball more smoothly; and meanwhile, the sharp needle head contraction device is arranged, so that the risk that the needle head of the needle tube damages optic nerves and blood vessels in the muscle cone during injection is reduced.

Description

Visual retrobulbar block anesthesia syringe

Technical Field

The utility model relates to a medical instrument, in particular to a visual ball rear blocking anesthesia injector.

Background

When ophthalmic surgery is performed, the risk of the intraocular surgery is increased due to the rotation of the eye position of a patient, and generally, doctors can perform eye position braking anesthesia on the surgical patient with high eye position requirements, and generally, retrobulbar anesthesia is adopted. The retrobulbar anesthesia adopts a retrobulbar injection method, which is an anesthesia method for anesthetizing ciliary ganglia before an intraocular surgery so as to achieve the purpose of no pain during the surgery, and the successful retrobulbar block anesthesia can stabilize the position of the eye, simultaneously avoids various risks of general anesthesia and is favored by operating doctors at the posterior segment of the eye.

The retrobulbar block anesthesia site is beside the optic nerve in the muscle cone, a doctor needs to stretch the syringe into the way after the syringe is inserted into the ball by feel, the condition in the muscle cone cannot be observed, the eyeball is easy to puncture by the needle of the syringe, particularly patients with abnormal eyeball length, the doctor cannot easily grasp the rotation time of the needle, and the risks of accidental puncture of the eyeball, retrobulbar hematoma, rapid increase of orbital pressure, retinal detachment, blindness and the like are more easily caused.

Therefore, how to reduce the risk of eyeball puncture in the process of inserting the injector into the eye is a problem to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a visual ball back blocks anesthesia syringe, when the needle tubing stretched into the muscle awl, the doctor can observe the environment condition that the needle tubing stretched into the direction to avoid eyeball, blood vessel, optic nerve with the syringe needle of needle tubing, make the syringe needle of needle tubing pierce the locus of blocking anesthesia behind the ball more smoothly, reduce the risk that the unexpected tissue of syringe needle lacerated causes patient's eye damage.

In order to achieve the purpose of the invention, the utility model adopts the following technical scheme:

the utility model provides a retardant anesthesia syringe behind visual ball, which comprises a housin, the outer tube, the needle tubing, the endoscope, the syringe pump, the transfer line, the one end at the casing is fixed to the outer tube, be equipped with the shell chamber in the casing, the casing has income pipe end and play pipe end, the income pipe end is the one end that the casing is close to the outer tube, the one end that the outer tube was kept away from for the casing to the play pipe end, the needle tubing runs through the casing in proper order, the outer tube, the one end that the needle tubing is close to the outer tube is equipped with the syringe needle, the syringe needle adopts the tip, the syringe pump is connected to the one end that the syringe needle was kept away from to the needle tubing, the endoscope includes display and camera, the one end that the casing was kept away from to the outer tube is located to the camera, the camera is connected with the display electricity.

Adopt the utility model discloses a retardant anesthesia syringe behind visual ball when the outer tube stretches into in the muscle awl, the camera on the outer tube can stretch into the environmental aspect of direction with the outer tube and show on the display, and the doctor can avoid eyeball, blood vessel, optic nerve with the syringe needle of needle tubing through observing the display screen, makes the syringe needle of needle tubing more smoothly stab the locus of retardant anesthesia behind the ball, reduces the risk that unexpected tissue of syringe needle laceration caused patient's eye to damage.

Preferably, the utility model discloses still include micropump controller, transfer line, on the micropump controller was arranged in to the syringe pump, the syringe pump passed through the transfer line and connects the one end of keeping away from the syringe needle at the needle tubing, and micropump controller drive syringe pump is injected, and the injection volume, the injection speed that the injection pump can be adjusted through the micropump controller to the doctor, make the injection pump more stable, inject the anesthetic more safely, and slow injection helps promoting the absorption.

Preferably, the utility model discloses still include the footboard, the footboard is connected with micropump controller electricity, the opening and close of footboard control micropump controller, and the doctor steps on with the foot and presses the footboard and start the micropump controller, makes things convenient for the injection of syringe pump.

Preferably, the syringe needle is equipped with a plurality of jet orifices, and a plurality of jet orifices set up along the periphery of syringe needle, realize the diffuse injection, and the diffuse injection helps promoting the absorption.

Preferably, the needle tubing is flexible in the outer tube, the shell intracavity is equipped with the spring, the spacing ring, the latch fitting, spacing ring and needle tubing integrated into one piece, the spring is located the centre that spacing ring and casing go out the pipe end, the flexible direction of spring is the same with the flexible direction of needle tubing, the outer peripheral face of casing is equipped with first fore shaft, the second fore shaft, the fluting, first fore shaft and second fore shaft are arranged along the flexible direction of needle tubing, first fore shaft is close to the income pipe end of casing than the second fore shaft, the latch fitting includes the catch, the locking lever, the catch is located the one side that the spring was kept away from to the spacing ring, the outer peripheral face of catch is equipped with the slider, the slider removes in the fluting, the moving direction of slider is the same with the flexible direction of needle bar, from first fore shaft to second fore shaft and from the distance of fluting one end to the other end equal, the locking lever is fixed in the face of catch towards first fore shaft, the material of locking lever adopts thermoplastic, the face of locking lever is equipped with the locking piece towards the face of first fore shaft, the locking piece adopts the cambered surface towards going out the pipe end, the face of locking piece towards entering the pipe end adopts the plane: when the sliding block is moved to the outlet pipe end, the sliding block drives the locking piece and the limiting ring to move in the same direction, the locking rod overturns towards the shell cavity through the cambered surface of the locking piece, the locking piece moves into the shell cavity from the first locking port, the locking piece moves towards the second locking port in the shell cavity in a manner of being attached to the inner wall of the shell cavity, the spring is compressed, the limiting ring drives the needle head of the needle tube to extend out of the outer tube, when the locking piece moves to the position of the second locking port, the locking rod resets, the locking piece drives the locking piece to move into the second locking port from the shell cavity, the locking piece is clamped in the second locking port, and at the moment, the needle head of the needle tube completely extends out of the outer tube; when the locking block is pressed into the shell cavity, the locking block drives the locking rod to turn towards the shell cavity, the locking block moves into the shell cavity from the second locking port, the spring resets, the spring drives the locking piece and the limiting ring to move towards the pipe end, the locking block moves towards the first locking port in the shell cavity in a manner of being attached to the inner wall of the shell cavity, the limiting ring drives the needle head of the needle tube to retract into the outer tube, when the locking block moves to the position of the first locking port, the locking rod resets, the locking rod drives the locking block to move into the first locking port from the shell cavity, the locking block is clamped in the first locking port, the needle head of the needle tube retracts into the outer tube completely, before the outer tube extends into the muscle cone, a doctor presses the locking block in the second locking port to retract the needle head into the outer tube completely, and the risk that the needle head of the needle tube cuts visual nerves or blood vessels in the muscle cone is reduced.

Preferably, the casing is equipped with the upset piece towards one side of second fore shaft, and the upset piece is fixed on the casing, and the material of upset piece adopts thermoplastic, and the face of upset piece towards the second fore shaft is equipped with the briquetting, and the second fore shaft is aimed at to the briquetting: when the turnover piece is pressed towards the shell, the turnover piece drives the pressing block to move into the second locking port, and the pressing block pushes the locking block in the second locking port into the shell cavity; when loosening the upset piece, the upset piece resets, and the upset piece drives the briquetting and shifts out the second fore shaft, and the doctor presses the upset piece and promotes the intraoral locking piece of second fore shaft more easily.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the visual ball posterior block anesthesia injector of the present invention.

Fig. 2 is a front view of the housing of the embodiment with the needle fully retracted within the outer tube.

Figure 3 is a cross-sectional view of the housing of the embodiment with the needle fully retracted within the outer tube.

Fig. 4 is a front view of the housing with the needle fully extended out of the outer tube according to the embodiment.

FIG. 5 is a cross-sectional view of the housing of the embodiment shown with the needle fully extended out of the outer tube.

Fig. 6 is a rear view of the housing with the needle fully extended out of the outer tube according to the embodiment.

Reference numerals: 11. a micropump controller; 12. an injection pump; 13. a transfusion tube; 14. a pedal; 21. a display; 22. a camera; 30. a shell cavity; 31. a housing; 32. an outer tube; 33. a turnover piece; 34. briquetting; 35. a first locking notch; 36. a second locking notch; 4. a needle tube; 41. a needle head; 42. an injection hole; 43. a limiting ring; 5. a lock; 51. a locking ring; 52. a lock lever; 53. a locking block; 6. a spring; 61. a slider; 62. slotting; 71. pipe entering ends; 72. and (4) discharging the pipe end.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The visual ball posterior block anesthesia injector shown in fig. 1 to 6 comprises a shell 31, an outer tube 32, a needle tube 4, an endoscope, an injection pump 12 and an infusion tube 13, wherein the outer tube 32 is fixed at one end of the shell 31, a shell cavity 30 is arranged in the shell 31, the shell 31 is provided with an inlet tube end 71 and an outlet tube end 72, the inlet tube end 71 is one end of the shell 31 close to the outer tube 32, the outlet tube end 72 is one end of the shell 31 far away from the outer tube 32, the needle tube 4 sequentially penetrates through the shell 31 and the outer tube 32, one end of the needle tube 4 close to the outer tube 32 is provided with a needle 41, the needle 41 adopts a pointed tip, one end of the needle tube 4 far away from the needle 41 is connected with the injection pump 12, the endoscope comprises a display 21 and a camera 22, the camera 22 is arranged at one end of the outer tube 32 far away from the shell 31, the camera 22 is electrically connected with the display 21, when the outer tube 32 extends into a muscle cone, the camera 22 on the outer tube 32 can display 21 can display the environmental condition that the outer tube 32 extends in the direction of the outer tube 32, a doctor can avoid the needle 41 of the needle 4 or other unexpected tissues, so that the needle tube 4 can be pierced after the needle tube 4 can be pierced, and the eyeball to reduce the risk of blocking anesthesia of other tissues.

The utility model discloses still include micropump controller 11, transfer line 13, on micropump controller 11 is arranged in to syringe pump 12, syringe pump 12 passes through transfer line 13 and connects the one end of keeping away from syringe needle 41 at needle tubing 4, and micropump controller 11 drives syringe pump 12 and injects, and the doctor can adjust syringe pump 12's injection volume, injection speed through micropump controller 11, makes syringe pump 12 more stable, inject the anesthetic more safely, and slow injection helps promoting the absorption.

The utility model discloses still include footboard 14, footboard 14 is connected with 11 electricity of micro pump controller, and opening and close of footboard 14 control micro pump controller 11, the doctor is stepped on with the foot and is pressed footboard 14 and start micro pump controller 11, makes things convenient for the injection of syringe pump 12.

The needle 41 is provided with a plurality of injection holes 42, and the plurality of injection holes 42 are formed along the outer circumference of the needle 41 to realize diffuse injection, which helps to promote absorption.

The needle tube 4 is extended in the outer tube 32, a spring 6, a limiting ring 43 and a locking piece 5 are arranged in the shell cavity 30, the limiting ring 43 and the needle tube 4 are integrally formed, the spring 6 is positioned between the limiting ring 43 and the outlet tube end 72 of the shell 31, the extension direction of the spring 6 is the same as the extension direction of the needle tube 4, the outer peripheral surface of the shell 31 is provided with a first locking notch 35, a second locking notch 36 and a slot 62, the first locking notch 35 and the second locking notch 36 are arranged along the extension direction of the needle tube 4, the first locking notch 35 is closer to the inlet tube end 71 of the shell 31 than the second locking notch 36, the locking piece 5 comprises a locking ring 51 and a locking rod 52, the locking ring 51 is positioned on one side of the limiting ring 43 far away from the spring 6, a sliding block 61 is arranged on the peripheral surface of the locking ring 51, the sliding block 61 moves in a groove 62, the moving direction of the sliding block 61 is the same as the telescopic direction of the needle rod, the distance from one end of the groove 62 to the other end of the groove 62 is equal to the distance from the first locking notch 35 to the second locking notch 36, the locking rod 52 is fixed on the surface, facing the first locking notch 35, of the locking ring 51, the locking rod 52 is made of thermoplastic plastics, a locking block 53 is arranged on the surface, facing the first locking notch 35, of the locking rod 52, a locking block 53 is arranged on the surface, facing the pipe outlet 72, of the locking block 53 is an arc surface, and the surface, facing the pipe inlet 71, of the locking block 53 is a plane: when the sliding block 61 is moved towards the tube outlet end 72, the sliding block 61 drives the locking piece 5 and the limiting ring 43 to move in the same direction, the locking rod 52 turns over towards the shell cavity 30 through the arc surface of the locking piece 53, the locking piece 53 moves into the shell cavity 30 from the first locking port 35, the locking piece 53 moves towards the second locking port 36 in the shell cavity 30 in a way of being attached to the inner wall of the shell cavity 30, the spring 6 is compressed, the limiting ring 43 drives the needle 41 of the needle tube 4 to extend out of the outer tube 32, when the locking piece 53 moves to the position of the second locking port 36, the locking rod 52 resets, the locking rod 52 drives the locking piece 53 to move into the second locking port 36 from the shell cavity 30, the locking piece 53 is clamped in the second locking port 36, and at the moment, the needle 41 of the needle tube 4 completely extends out of the outer tube 32; when the locking block 53 is pressed into the shell cavity 30, the locking block 53 drives the locking rod 52 to turn over towards the shell cavity 30, the locking block 53 moves into the shell cavity 30 from the second locking port 36, the spring 6 resets, the spring 6 drives the locking piece 5 and the limiting ring 43 to move towards the tube-in end 71, the locking block 53 moves towards the first locking port 35 by being attached to the inner wall of the shell cavity 30 in the shell cavity 30, the limiting ring 43 drives the needle 41 of the needle tube 4 to retract into the outer tube 32, when the locking block 53 moves to the position of the first locking port 35, the locking rod 52 resets, the locking rod 52 drives the locking block 53 to move into the first locking port 35 from the shell cavity 30, the locking block 53 is clamped in the first locking port 35, at the moment, the needle 41 of the needle tube 4 is completely retracted into the outer tube 32, before the outer tube 32 extends into the muscle cone, a doctor presses the locking block 53 in the second locking port 36 to completely retract into the outer tube 32, and the risk of cutting the tissues such as the optic nerve and the blood vessel in the spine when the needle 41 of the needle tube 4 enters the muscle cone is clamped.

One side of casing 31 towards second fore shaft 36 is equipped with upset piece 33, and upset piece 33 is fixed on casing 31, and the material of upset piece 33 adopts thermoplastic, and upset piece 33 is equipped with briquetting 34 towards the face of second fore shaft 36, and briquetting 34 aims at second fore shaft 36: when the turnover part 33 is pressed towards the shell 31, the turnover part 33 drives the press block 34 to move into the second locking port 36, and the press block 34 pushes the locking block 53 in the second locking port 36 into the shell cavity 30; when the turning piece 33 is released, the turning piece 33 is reset, the turning piece 33 drives the pressing block 34 to move out of the second locking notch 36, and a doctor presses the turning piece 33 to more easily push the locking block 53 in the second locking notch 36.

The above description is a preferred embodiment of the present invention, and a person skilled in the art can make several modifications and improvements without departing from the principles of the present invention, and these should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a retardant anesthesia syringe behind visual ball which characterized in that: including casing (31), outer tube (32), needle tubing (4), endoscope, syringe pump (12), transfer line (13), the one end in casing (31) is fixed in outer tube (32), be equipped with shell chamber (30) in casing (31), casing (31) have income pipe end (71) and exit tube end (72), it is close to the one end of outer tube (32) for casing (31) to go into pipe end (71), the one end of outer tube (32) is kept away from for casing (31) to go out pipe end (72), casing (31), outer tube (32) are run through in proper order in needle tubing (4), and the one end that outer tube (32) are close to in needle tubing (4) is equipped with syringe needle (41), syringe needle (41) adopt the tip, syringe needle (4) are kept away from the one end of syringe needle (41) and are connected syringe pump (12), the endoscope includes display (21) and camera (22), the one end that casing (31) were kept away from in outer tube (32) is located in camera (22), and camera (22) are connected with display (21) electricity.

2. The visualization behind-the-ball block anesthesia syringe of claim 1, wherein: still include micropump controller (11), transfer line (13), on micropump controller (11) was arranged in to syringe pump (12), syringe pump (12) were connected in needle tubing (4) through transfer line (13) and are kept away from the one end of syringe needle (41), micropump controller (11) drive syringe pump (12) are injected.

3. The visualization behind-the-ball block anesthesia syringe of claim 2, wherein: the micro pump control system is characterized by further comprising a pedal (14), wherein the pedal (14) is electrically connected with the micro pump controller (11), and the pedal (14) controls the micro pump controller (11) to be opened and closed.

4. The visualization behind-the-ball block anesthesia syringe of claim 1, wherein: the needle head (41) is provided with a plurality of injection holes (42), and the injection holes (42) are arranged along the periphery of the needle head (41).

5. The visualization behind-the-ball block anesthesia syringe of claim 1, wherein: the needle tube (4) stretches in the outer tube (32), a spring (6), a limiting ring (43) and a locking piece (5) are arranged in the shell cavity (30), the limiting ring (43) and the needle tube (4) are integrally formed, the spring (6) is located between the limiting ring (43) and an outlet tube end (72) of the shell (31), the stretching direction of the spring (6) is the same as the stretching direction of the needle tube (4), a first locking opening (35), a second locking opening (36) and a groove (62) are formed in the outer peripheral surface of the shell (31), the first locking opening (35) and the second locking opening (36) are arranged along the stretching direction of the needle tube (4), the first locking opening (35) is closer to an inlet tube end (71) of the shell (31) than the second locking opening (36), the locking piece (5) comprises a locking ring (51) and a locking rod (52), the locking ring (51) is located on one side, away from the spring (6), the limiting ring (43), a sliding block (61) is arranged on the side of the locking ring (51), the sliding block (61) moves in the groove (62), the sliding block (61), the sliding block moves in the direction, the direction of the sliding block (61), the sliding block moves in the groove (62), the direction is the direction, and the distance from the second locking block (36) to the second locking block (35) is equal to the needle rod (36), and the distance from the needle rod (35) is equal to the needle bar (36), the locking rod (52) is fixed on the surface, facing the first locking notch (35), of the locking ring (51), the locking rod (52) is made of thermoplastic plastics, the surface, facing the first locking notch (35), of the locking rod (52) is provided with a locking block (53), the surface, facing the pipe outlet end (72), of the locking block (53) is an arc surface, and the surface, facing the pipe inlet end (71), of the locking block (53) is a plane: when the sliding block (61) is moved towards the pipe outlet end (72), the sliding block (61) drives the locking piece (5) and the limiting ring (43) to move in the same direction, the locking rod (52) turns towards the inside of the shell cavity (30) through the cambered surface of the locking block (53), the locking block (53) moves into the shell cavity (30) from the first locking port (35), the locking block (53) moves towards the second locking port (36) in the shell cavity (30) in a manner of being attached to the inner wall of the shell cavity (30), the spring (6) is compressed, the limiting ring (43) drives the needle head (41) of the needle tube (4) to extend out of the outer tube (32), when the locking block (53) moves to the position of the second locking port (36), the locking rod (52) resets, the locking block (52) drives the locking block (53) to move into the second locking port (36) from the shell cavity (30), the locking block (53) is clamped in the second locking port (36), and at the needle head (41) of the needle tube (4) extends out of the outer tube (32); when the locking block (53) is pressed into the shell cavity (30), the locking block (53) drives the locking rod (52) to turn over towards the interior of the shell cavity (30), the locking block (53) moves into the shell cavity (30) from the second locking opening (36), the spring (6) resets, the spring (6) drives the locking piece (5) and the limiting ring (43) to move towards the tube-in end (71), the locking block (53) moves towards the first locking opening (35) in the shell cavity (30) in a manner of being attached to the inner wall of the shell cavity (30), the limiting ring (43) drives the needle head (41) of the needle tube (4) to retract into the outer tube (32), when the locking block (53) moves to the position of the first locking opening (35), the locking rod (52) resets, the locking rod (52) drives the locking block (53) to move into the first locking opening (35) from the shell cavity (30), the locking block (53) is clamped in the first locking opening (35), and at the needle tube (41) of the locking block (4) is completely retracted into the outer tube (32).

6. The visualization behind-the-ball block anesthesia syringe of claim 5, wherein: casing (31) are equipped with upset piece (33) towards one side of second fore shaft (36), upset piece (33) are fixed on casing (31), and the material of upset piece (33) adopts thermoplastic, and the face of upset piece (33) towards second fore shaft (36) is equipped with briquetting (34), second fore shaft (36) are aimed at in briquetting (34): when the turnover piece (33) is pressed towards the shell (31), the turnover piece (33) drives the press block (34) to move into the second locking notch (36), and the press block (34) pushes the lock block (53) in the second locking notch (36) into the shell cavity (30); when the turnover piece (33) is loosened, the turnover piece (33) resets, and the turnover piece (33) drives the pressing block (34) to move out of the second locking notch (36).