CN214259435U - Tympanic membrane puncture injection device - Google Patents

Abstract

The utility model relates to a tympanic membrane puncture injection device, which comprises a puncture needle structure and an injection structure; one end of the puncture needle structure far away from the puncture is connected with the first end of the injection structure; the injection structure comprises an injector and a foot operation shell, and the injector and the foot operation shell are connected through a connecting piece; the injection structure is controlled through the foot operation shell, so that the functions of suction and/or drug administration and injection of the puncture needle are realized, the effect of accurately controlling the suction and injection speeds is realized, the operation of the tympanocentesis can be implemented by a single person, and the labor is saved.

Description

Tympanic membrane puncture injection device

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to is a tympanic membrane puncture injection device.

Background

The tympanocentesis is an outpatient treatment, and is required when the tympanocentesis is used for effusion in the tympanic cavity or medicine is injected into the tympanocentesis. Local anesthesia is generally adopted, the coordination of patients is poor due to pain, fear and the like, the position of tympanum puncture is inaccurate due to slight movement of the heads of the patients or slight trembling of hands of doctors, and the tympanum can be torn by serious patients.

The operation flow in the process of tympanic membrane puncture in clinic at present is as follows: the operator holds the otological endoscope device in the left hand, determines the puncture position, holds the tympanic membrane puncture needle in the right hand, and sucks secretion and/or injects medicine according to the requirement after the puncture is successful. In order to ensure the smooth proceeding and postoperative effect of the tympanocentesis, assistance is often required; however, the following problems easily occur when operating by two persons: 1. the puncture needle is shaken indefinitely during suction or administration, so that the puncture hole of the tympanic membrane is enlarged, thereby causing large wound and difficult healing of the tympanic membrane, and increasing the pain of a patient; 2. the two parties are matched to ensure smooth operation and good postoperative effect; therefore, a puncture medicine feeding device which can effectively fix the position of the puncture needle, is convenient for medicine feeding and suction operation and can meet the requirement that one doctor can complete the whole set of operation is needed.

The utility model provides a to above-mentioned problem, provide a tympanic membrane puncture injection device.

Disclosure of Invention

In order to overcome the problems in the background art, the utility model provides a tympanic membrane puncture injection device.

A tympanic membrane puncture injection device comprises a puncture needle structure and an injection structure; one end of the puncture needle structure far away from the puncture is connected with the first end of the injection structure; the injection structure comprises an injector and a foot operation shell, and the injector and the foot operation shell are connected through a connecting piece; the injection structure is controlled through the foot operation shell, so that the functions of suction and/or drug administration and injection of the puncture needle are realized, the effect of accurately controlling the suction and injection speeds is realized, the operation of the tympanocentesis can be implemented by a single person, and the labor is saved.

Preferably, the injector comprises an injection housing, and a push rod which is positioned in the injection housing and can move relatively to the injection housing; the front end of the push rod is provided with a piston which is tightly connected with the inner wall of the injection shell; in this way, the position of the push rod and the piston in the injection shell is changed, and the function of completing the administration and/or suction operation through the injector is realized.

Preferably, the first end of the injection housing is provided with a first connector, and the first connector is connected with the puncture needle structure; this arrangement facilitates the connection of the puncture needle structure and the injection structure.

Preferably, the scale marks are arranged outside the injection shell and directly display the amount of medicine injected into the tympanic cavity by the injector or the volume of liquid extracted from the tympanic cavity, so that the operation is convenient.

Preferably, the connecting piece is a connecting pipe, a first end of the connecting pipe is connected with the push rod, and a second end of the connecting pipe is connected with the foot operation shell; the foot operation shell is internally provided with a power structure for controlling the connecting pipe to perform forward pushing or backward withdrawing operation, a control component for controlling the power structure to perform opening and blocking operation, and a power supply structure for providing energy for the control component; the control assembly comprises a central controller and a timer, the timer is connected with the central controller, and the central controller is also connected with the power structure; the central controller receives the opening and blocking instructions of the timer and transmits the instructions to the power structure to execute the opening and blocking operation. When the automatic control device is used, the power structure is automatically and timely opened or blocked by the control assembly, the power structure performs opening or blocking operation, the operation of pushing the connecting pipe forwards or withdrawing the push rod backwards is achieved, and then the function of dosing or sucking by the aid of the injector is accurately controlled.

Preferably, the power structure comprises a motor for providing power, and a threaded rotating shaft arranged on the motor; a movable column which can rotate in a matching way with the threaded rotating shaft is arranged on the outer side of the threaded rotating shaft, and the upper end of the movable column is connected with the second end of the connecting pipe; a constraint structure used for limiting the movable column to only generate vertical movement is arranged on the outer side of the movable column; when the automatic medicine feeding and sucking device is used, the motor provides power to drive the threaded rotating shaft to rotate, so that the moving column moves relative to the threaded rotating shaft, the connecting pipe and the push rod are driven to move, and the automatic medicine feeding or sucking function of the injector is realized.

Preferably, the upper end of the foot operation housing is provided with a through hole into which the connection pipe is inserted.

Preferably, a handle is arranged at one end of the push rod, which is far away from the piston, and the handle is connected with the first end of the connecting pipe.

Preferably, the handle is integrally connected with the first end of the connecting pipe; or a connecting groove is formed in the outer side of the handle, and a second connecting port which is connected with the connecting groove in a matched mode is formed in the first end of the connecting pipe; the inner side wall of the connecting groove and the outer side wall of the second connecting port are both provided with threads; the connection effect of the connecting pipe and the push rod can be well guaranteed through the arrangement.

Preferably, a protective tube playing a protective role is arranged on the outer side of the connecting tube, a fixed tube used for connecting an injection shell is arranged at the first end of the protective tube, and the fixed tube is communicated with the inner cavity of the protective tube; the inner diameter of the protective pipe is larger than the outer diameter of the connecting pipe; the arrangement can well protect the connecting pipe so as to avoid the interference of the external factors which are pulled in disorder.

Preferably, the inner side of the first end of the fixed pipe is provided with threads, and the outer side of the second end of the injection shell is also provided with threads matched with the first end of the fixed pipe; the arrangement can not only ensure the protection effect on the injector and the connecting pipe, but also greatly reduce the probability of being influenced by the outside world in the operation process.

Preferably, an observation window is arranged on one side of the fixed pipe, and an operator can conveniently observe the connection condition of the first end of the connecting pipe and the push rod through the observation window.

Preferably, the outer side of the fixed pipe is provided with a reflex angle assisting ring, and the outer side of the reflex angle assisting ring is also provided with a finger groove for facilitating fingers to extend into; the setting of the angle-optimizing power-assisted ring is convenient for an operator to hold the fixed tube and the injector with one hand, and the stability in the operation process is ensured.

Preferably, the fixed pipe and the protective pipe are made of transparent materials, so that the condition can be observed conveniently; the connecting pipe is made of hard materials so as to ensure that the push rod is accurately driven in the forward pushing or backward pulling process.

Preferably, the constraint structure comprises a constraint pipe positioned outside the motor and a fixed wing arranged outside the moving column; a constraint block is arranged in the constraint pipe, a fixing groove for accommodating the fixing wing is formed in the constraint block, and the fixing groove penetrates through the constraint block up and down; the stability of motor can be guaranteed in the setting of about pipe, and the setting of the about piece that has the fixed slot can guarantee well that when the motor normally worked, can only take place relative movement between removal post and the screw thread pivot, and can not take place the pivoted condition simultaneously.

Preferably, the fixing groove is sized to allow the connection pipe to protrude thereinto.

Preferably, the restriction block is positioned at the outer side of the threaded rotating shaft, so that the normal work of the motor is not influenced; the linear distance from the upper surface of the moving column to the upper surface of the motor is consistent with the linear distance from the first surface of the piston to the inner surface of the second end of the injection shell; the arrangement effectively ensures the effect that the moving distance of the moving column is matched with the moving distance of the push rod.

Preferably, the control assembly further comprises an operation key, a display and a data storage module, wherein the operation key, the display and the data storage module are respectively connected with the central controller; the running time of the motor and the moving distance of the piston in the injection shell are fixed, the running time of the motor is set through the operating key, when the motor starts to run, the motor rotates to sequentially drive the rotation of the threaded rotating shaft and the movement of the moving column, so that the movement of the connecting pipe and the push rod is controlled, in the process, the central controller monitors time, and when the preset time is up, the central controller automatically controls the motor to stop working; the data storage module is used for archiving data such as the running time of the motor, the moving distance of the piston relative to the injection shell, the volume of liquid for administration or suction and the like; the display is used for displaying the data in real time and ensuring real-time monitoring.

Preferably, the operation keys include a main switch key, a motor switch key, a start/pause key, a time adjustment key and the like, and the central controller performs corresponding operations after receiving a key signal of the operation keys.

Preferably, a foot control board is arranged on the outer side of the foot operation shell, and the operation keys are arranged on the upper side of the foot control board; wherein the start/pause key may be set as a foot key; the arrangement facilitates the operation flow controlled by the operator through the pedal in the treatment process.

Preferably, the display is arranged at the upper end of the foot operation shell, so that the display is convenient to observe; the front/rear end of the foot operation housing is provided with a detaching plate.

Preferably, the power structure is set as a direct current power supply, and the direct current power supply supplies power to the controller, the memory, the player and the timer, so that the endurance use of the device for increasing the safety of the premature infant is guaranteed.

Preferably, the puncture needle structure comprises an injector connecting part and a puncture needle, and the needle head part at the front end of the puncture needle is arranged in an inclined plane shape; the injector connecting part is in threaded connection with a connecting port of the injector; the arrangement can effectively ensure the normal puncture of the puncture needle structure and the stable connection of the injector and the injector connecting part.

The utility model has the advantages that: 1. the position of a push rod in the injector relative to the injection shell is controlled by arranging a power structure and a connecting piece which are connected with the injector, so that the suction of effusion in the tympanic cavity in the tympanocentesis is realized, the function of injecting medicine into the tympanic cavity is realized, and the defect of manual administration/suction through the injector in the prior art is effectively avoided; 2. by arranging the foot operation shell and the control assembly, the operation time of the foot control power structure of an operator is effectively utilized, so that the function of controlling the drug administration/suction effect of the injector is realized, a single person can complete the whole set of operation, time and labor are saved, and the result that the operation cannot be smoothly carried out due to improper matching is avoided; 3. the injector and the puncture needle structure can be disassembled, and the injector and the foot operation shell can also be disassembled, so that the flexibility of the device is improved, and the device is simple and convenient; 4. the stability of the puncture needle structure in the operation process is effectively ensured by arranging the reflex booster ring which is convenient to fix.

Drawings

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

FIG. 2 is a schematic view of the puncture needle structure, the injector and the fixing tube according to the present invention;

FIG. 3 is a sectional view of the injector and the fixed tube of the present invention;

FIG. 4 is a perspective view of the puncture needle structure of the present invention separated from the syringe and the syringe separated from the fixed tube;

FIG. 5 is a schematic view of a partially enlarged structure of the middle fixing tube under the viewing angle of the observation window;

FIG. 6 is a schematic view of a partially enlarged structure of a middle fixing tube under a reflex angle assisting ring view angle according to the present invention;

fig. 7 is a perspective view of the foot operation shell of the present invention in a front view, partially enlarged;

FIG. 8 is a schematic view of a partially enlarged structure of the restraint tube of the present invention separated from the threaded shaft;

fig. 9 is a schematic view of a partially enlarged structure of the present invention, in which the restraint tube is sleeved outside the motor and the threaded shaft;

fig. 10 is a block diagram of a control module according to the present invention;

in the figure, 1, a puncture needle structure; 11. puncturing needle; 12. an injector connection section; 2. an injector; 21. an injection housing; 22. a push rod; 23. a piston; 24. a first connection port; 25. a handle; 3. a foot operation housing; 31. a connecting pipe; 32. a second connection port; 33. a protective tube; 34. a fixed tube; 35. an observation window; 36. a preferential angle power assisting ring; 37. a finger groove; 38. a foot control panel; 4. a control component; 41. a power supply structure; 42. a central controller; 43. a timer; 44. an operation key; 45. a display; 46. a data storage module; 51. a motor; 52. a threaded shaft; 53. moving the column; 54. a restraint tube; 55. a fixed wing; 56. a constraint block; 57. and fixing the grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the disclosure in the specification. The utility model discloses can also implement or use through other different concrete implementation manners, under the condition of conflict-free, the characteristics in following embodiment and the embodiment can make up each other, based on the embodiment in the utility model, all other embodiments that the ordinary skilled in the art obtained under the prerequisite of not making creative work all belong to the scope of protection of the utility model.

Example 1

Referring to fig. 1 to 10, a tympanic membrane puncturing and injecting apparatus in this embodiment includes a puncturing needle structure 1 and an injecting structure; one end of the puncture needle structure 1 far away from the puncture is connected with the first end of the injection structure; the injection structure comprises an injector 2 and a foot operation shell 3, wherein the injector 2 and the foot operation shell 3 are connected through a connecting piece; the injection structure is controlled through the foot operation shell 3, so that the functions of suction and/or drug administration and injection of the puncture needle 11 are realized, the effect of accurately controlling the suction and injection speeds is realized, the operation of the tympanocentesis can be implemented by a single person, and the labor is saved.

The injector 2 comprises an injection shell 21 and a push rod 22 which is positioned in the injection shell 21 and can move relatively to the injection shell 21; the front end of the push rod 22 is provided with a piston 23, and the piston 23 is tightly connected with the inner wall of the injection shell 21; by varying the position of the plunger 22 and the plunger 23 within the syringe housing 21 in this manner, the function of administering and/or aspirating via the syringe 2 is achieved. The first end of the injection shell 21 is provided with a first connecting port 24, and the first connecting port 24 is connected with the puncture needle structure 1; this arrangement facilitates the connection of the puncture needle arrangement 1 and the injection arrangement.

The scale marks are arranged outside the injection shell 21 and directly display the dose of medicine injected into the tympanic cavity by the injector 2 or the volume of liquid extracted from the tympanic cavity, so that the operation is convenient.

The connecting piece is arranged as a connecting pipe 31, a first end of the connecting pipe 31 is connected with the push rod 22, and a second end of the connecting pipe 31 is connected with the foot operation shell 3; the inside of the foot operation shell 3 is provided with a power structure for controlling the connecting pipe 31 to perform forward pushing or backward withdrawing operation, a control component 4 for controlling the power structure to perform opening and blocking operation, and a power structure 41 for providing energy for the control component 4; the control assembly 4 comprises a central controller 42 and a timer 43, the timer 43 is connected with the central controller 42, and the central controller 42 is also connected with a power structure; the central controller 42 receives the start and stop commands from the timer 43 and transmits the commands to the power structure to perform the start and stop operations. When the injector is used, the control component 4 sends an opening or blocking command to the power structure automatically in a timing mode, the power structure performs opening or blocking operation, the operation that the connecting pipe 31 pushes the push rod 22 forwards or backwards is achieved, and then the function of dosing or suction by the injector 2 is controlled accurately.

The power structure comprises a motor 51 for providing power and a threaded rotating shaft 52 arranged on the motor 51; a moving column 53 which can rotate in a matching way with the threaded rotating shaft 52 is arranged on the outer side of the threaded rotating shaft 52, and the upper end of the moving column 53 is connected with the second end of the connecting pipe 31; a constraint structure for limiting the vertical movement of the moving column 53 only is arranged on the outer side of the moving column 53; when in use, the motor 51 provides power to drive the threaded rotating shaft 52 to rotate, so that the moving column 53 moves relative to the threaded rotating shaft 52, and the connecting tube 31 and the push rod 22 are driven to move, thereby realizing the automatic administration or suction function of the injector 2. The upper end of the foot operation housing 3 is provided with a through hole into which the connection pipe 31 is inserted.

A handle 25 is arranged at one end of the push rod 22 far away from the piston 23, and the handle 25 is connected with a first end of the connecting pipe 31; the handle 25 is integrally connected to a first end of the connection pipe 31. The inner side of the first end of the fixed tube 34 is provided with screw threads, and the outer side of the second end of the injection shell 21 is also provided with screw threads matched with the first end of the fixed tube 34; this arrangement ensures protection of the syringe 2 and the connecting tube 31 and also greatly reduces the probability of external influences during operation.

The fixed tube 34 and the protective tube 33 are made of transparent materials, so that the condition can be observed conveniently; the connecting tube 31 is made of hard material to ensure the push rod 22 is accurately driven during the forward or backward pushing process.

The constraint structure comprises a constraint pipe 54 positioned outside the motor 51 and a fixed wing 55 arranged outside the moving column 53; a restraint block 56 is arranged in the restraint pipe 54, the restraint block 56 is provided with a fixing groove 57 for accommodating the fixing wing 55, and the fixing groove 57 penetrates through the restraint block 56 up and down; the arrangement of the restriction tube 54 can ensure the stability of the motor 51, and the arrangement of the restriction block 56 with the fixing groove 57 can well ensure that only relative movement can occur between the moving column 53 and the threaded rotating shaft 52, but simultaneous rotation cannot occur when the motor 51 normally works. The fixing groove 57 is sized to allow the connection tube 31 to protrude thereinto.

The restraint block 56 is positioned on the outer side of the threaded rotating shaft 52, so that the normal operation of the motor 51 is not influenced; the linear distance from the upper surface of the moving post 53 to the upper surface of the motor 51 is consistent with the linear distance from the first surface of the piston 23 to the inner surface of the second end of the injection housing 21; this arrangement effectively ensures the matching of the moving distance of the moving column 53 and the moving distance of the push rod 22.

The control assembly 4 further comprises an operation key 44, a display 45 and a data storage module 46, wherein the operation key 44, the display 45 and the data storage module 46 are respectively connected with the central controller 42; the running time of the motor 51 and the moving distance of the piston 23 in the injection shell 21 are fixed, the running time of the motor 51 is set through the operation key 44, when the motor 51 starts to run, the motor 51 rotates to sequentially drive the rotation of the threaded rotating shaft 52 and the movement of the moving column 53, so as to control the movement of the connecting pipe 31 and the push rod 22, in the process, the central controller 42 monitors the time, and when the preset time is reached, the central controller 42 automatically controls the motor 51 to stop working; the data storage module 46 is used for archiving data such as the running time of the motor 51, the moving distance of the piston 23 relative to the injection shell 21, the volume of liquid for administration or suction, and the like; the display 45 is used for displaying the data in real time to ensure real-time monitoring. The operation keys 44 include a main on-off key, a motor 51 on-off key, a start/pause key, a time adjustment key, etc., and the central controller 42 performs corresponding operations after receiving a key signal of the operation keys 44.

The foot control board 38 is arranged on the outer side of the foot operation casing 3, and the operation keys 44 are arranged on the upper side of the foot control board 38; wherein the start/pause key may be set as a foot key; the arrangement facilitates the operation flow controlled by the operator through the pedal in the treatment process.

The display 45 is arranged at the upper end of the foot operation shell 3, so that the observation is convenient; the front/rear end of the foot operation housing 3 is provided with a detaching plate. The power supply structure 41 is set as a direct current power supply which supplies power to the controller, the memory, the player and the timer, and the endurance use of the device for increasing the sense of safety of the premature infant is guaranteed.

The puncture needle structure 1 comprises an injector connecting part 12 and a puncture needle 11, wherein the needle head part at the front end of the puncture needle 11 is arranged in an inclined plane shape; the injector connecting part 12 is connected with a connecting port of the injector 2 through screw threads; this arrangement effectively ensures normal puncture of the puncture needle structure 1 and stable connection of the syringe 2 and the syringe connecting portion 12.

Example 2

Referring to fig. 3 to 6, the technical difference between the present embodiment and embodiment 1 is the connection manner of the handle 25 and the connection pipe 31, in the present embodiment, the handle 25 is movably connected to the first end of the connection pipe 31, a connection groove is disposed on the outer side of the handle 25, and a second connection port 32 matched with the connection groove is disposed at the first end of the connection pipe 31; the inner side wall of the connecting groove and the outer side wall of the second connecting port 32 are both provided with threads; this arrangement can ensure the coupling effect of the coupling pipe 31 and the push rod 22 well.

Other technical features in this embodiment are completely the same as those in embodiment 1, and are not described herein again.

Example 3

Referring to fig. 7 and fig. 9, the following technical features are added to the embodiment 1 or 2 in this embodiment: a protective tube 33 playing a protective role is arranged on the outer side of the connecting tube 31, a fixed tube 34 used for connecting the injection shell 21 is arranged at the first end of the protective tube 33, and the inner cavity of the protective tube 33 is communicated with the fixed tube 34; the inner diameter of the protection tube 33 is larger than the outer diameter of the connection tube 31; this arrangement can protect the connection pipe 31 well to avoid the interference of the external factors.

Example 4

Referring to fig. 1 to 6, the following technical features are added to embodiment 3 of the present embodiment: an observation window 35 is provided at one side of the fixed tube 34, and the observation window 35 is provided to facilitate an operator to observe the connection between the first end of the connection tube 31 and the push rod 22.

Example 5

Referring to fig. 1, fig. 5 and fig. 6, the following technical features are added to the embodiment 3: a reflex angle assisting ring 36 is arranged on the outer side of the fixed pipe 34, and a finger groove 37 for facilitating fingers to extend into is also arranged on the outer side of the reflex angle assisting ring 36; the setting of the preferential angle power assisting ring 36 is convenient for an operator to hold the fixed tube 34 and the injector 2 by one hand, and the stability in the operation process is ensured.

The above description of the embodiments is only intended to illustrate the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several modifications can be made to the present invention, and these modifications will fall within the protection scope of the claims of the present invention.

Claims (10)

1. A tympanic membrane puncture injection device comprises a puncture needle structure and an injection structure, and is characterized in that one end of the puncture needle structure, which is far away from the puncture, is connected with a first end of the injection structure; the injection structure comprises an injector and a foot operation shell which are connected through a connecting piece.

2. The tympanocentesis injection device of claim 1, wherein the injector comprises an injection housing, and a push rod located within the injection housing and capable of relative movement with respect to the injection housing; the front end of the push rod is provided with a piston which is tightly connected with the inner wall of the injection shell.

3. The tympanocentesis injection device of claim 2, wherein the connector is provided as a connecting tube, a first end of the connecting tube is connected with the push rod, and a second end of the connecting tube is connected with the foot operation housing; the foot operation shell is internally provided with a power structure for controlling the connecting pipe to perform forward pushing or backward withdrawing operation, a control component for controlling the power structure to perform opening and blocking operation, and a power supply structure for providing energy for the control component; the control assembly comprises a central controller and a timer, the timer is connected with the central controller, and the central controller is further connected with the power structure.

4. The tympanic membrane puncturing and injecting apparatus according to claim 3, wherein said power structure comprises a motor for providing power, and a threaded shaft disposed on the motor; a movable column which can rotate in a matching way with the threaded rotating shaft is arranged on the outer side of the threaded rotating shaft, and the upper end of the movable column is connected with the second end of the connecting pipe; and a constraint structure for limiting the vertical movement of the moving column only is arranged on the outer side of the moving column.

5. The tympanocentesis injection device of claim 2, wherein the end of the push rod remote from the piston is provided with a handle, and the handle is connected with the first end of the connecting pipe.

6. The tympanic membrane puncturing and injecting apparatus according to claim 3, wherein a protective tube is disposed outside the connecting tube, a fixing tube for connecting the injecting housing is disposed at the first end of the protective tube, and the fixing tube is communicated with the inner cavity of the protective tube.

7. The tympanocentesis injection device of claim 4, wherein the constraint structure comprises a constraint tube located outside the motor, and a fixed wing disposed outside the moving column; the constraint pipe is internally provided with a constraint block, the constraint block is provided with a fixing groove for accommodating the fixing wing, and the fixing groove penetrates through the constraint block from top to bottom.

8. The tympanic membrane puncturing and injecting apparatus according to claim 3, wherein the control assembly further comprises an operation key, a display and a data storage module, the operation key, the display and the data storage module are respectively connected with the central controller; the operating time of the motor is fixed to the distance the piston moves inside the injection housing.

9. The tympanic membrane puncturing and injecting apparatus according to claim 8, wherein a foot control plate is provided on an outside of said foot operation housing, and the operation keys are provided on an upper side of the foot control plate.

10. The tympanic membrane puncture injection apparatus according to any one of claims 1-9, wherein the puncture needle structure comprises an injector connection part and a puncture needle, and the needle head part of the puncture needle front end is disposed in a bevel shape.

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