CN104146819A

CN104146819A - Medical tympanic membrane catheterization device

Info

Publication number: CN104146819A
Application number: CN201410430129.6A
Authority: CN
Inventors: 王娜; 王先龙; 李兰英
Original assignee: First Affiliated Hospital of Henan University of Science and Technology
Current assignee: First Affiliated Hospital of Henan University of Science and Technology
Priority date: 2014-08-28
Filing date: 2014-08-28
Publication date: 2014-11-19
Anticipated expiration: 2034-08-28
Also published as: CN104146819B

Abstract

The invention relates to a medical tympanic membrane catheterization device which comprises an outer cannula and a core rod. The tail end of the core rod extends out of the outer cannula and is connected with a push handle, a reset spring is arranged between the push handle and the outer cannula, the core rod is provided with a groove formed in the radial direction, a control rod is arranged in the groove, the control rod and the bottom of the groove are connected through a compressed spring, the outer cannula is provided with a through hole, a shell covers the through hole, an ejector rod is arranged on the position, corresponding to the through hole, in the shell in a penetrating mode, the axis of the ejector rod and the axis of the through hole are overlapped, the diameter of the ejector rod is smaller than that of the through hole, one end of the ejector rod extends out of the shell and is connected with a button, the outer end of the ejector rod can extend into the through hole of the outer cannula, the ejector rod is further provided with a check ring disposed on the ejector rod in the shell in a sleeved mode, and the distance between the check ring and the end, far away from the button, of the ejector rod is lager than the thickness of the outer cannula. The medical tympanic membrane catheterization device is convenient to use, the view of operators is wide, and catheterization efficiency and the treatment effect of a ventilation tube can be obviously improved.

Description

A kind of medical Tube adapter for drum membrane

Technical field

The present invention relates to medical equipment technical field, be specifically related to a kind of medical Tube adapter for drum membrane.

Background technology

As everyone knows, the patients such as the hydrotympanum to secretory otitis media or the initiation of other reason will carry out tube adapter for drum membrane hands art, so that in tympanum, outer connection, to realize except liquid, the object of ventilation, tube adapter for drum membrane generally adopts silica gel to make now dumbbell shape angle breather or T-shaped breather, when treatment, breather is sent into tympanum through bracket by tympanostomy tube inserter, existing tympanostomy tube inserter is provided with " Z " sleeve pipe, in sleeve pipe, be provided with push rod, sleeve pipe rear end is provided with fixed handle, putting back-end is provided with and pushes away handle, when use, by breather through bracket holder at sleeve pipe front end and insert tympanum place, after fixing sleeve pipe, fixed handle pushes away handle, push rod moves forward in sleeve pipe, breather is sent in the tympanum through hole having bored, the deficiency of this tympanostomy tube inserter is that operator's sight line is poor, sleeve pipe fixed effect is poor, these all directly affect accuracy and therapeutic effect that breather is inserted.

Summary of the invention

The object of the invention is the deficiency for solving the problems of the technologies described above, a kind of medical Tube adapter for drum membrane is provided, easy to use, operator's sight line is good, and that can obviously improve breather inserts efficiency and therapeutic effect.

The present invention is the deficiency solving the problems of the technologies described above, the technical scheme adopting is: a kind of medical Tube adapter for drum membrane, comprise trocar sheath and be located in the core bar of trocar sheath inside, the tail end of described core bar stretches out trocar sheath and is connected with and pushes away handle, and push away between handle and trocar sheath and be provided with back-moving spring, on described core bar, there is the groove of radially offering, described groove is arranged on the position of core bar near tail end, in groove, be provided with control stick, control stick is connected by Compress Spring with the bottom of groove, on described trocar sheath, be provided with the through hole that can pass for control stick, this through hole is covered with housing, in housing, the position of corresponding through hole is equipped with push rod, the axis of push rod and the dead in line of through hole, and the diameter of push rod is less than the diameter of through hole, one end of push rod is stretched out housing and is connected button, the other end of push rod can stretch in the through hole of trocar sheath, on described push rod, be also provided with back-up ring, shield ring sleeve is located on the push rod that is positioned at enclosure interior, and the distance away from button one end of back-up ring and push rod is greater than the thickness of trocar sheath.

Between described back-up ring and trocar sheath, be provided with restoring spring, restoring spring is set on push rod.

beneficial effect

Medical Tube adapter for drum membrane of the present invention, easy to use, operator's sight line is good, and that can obviously improve breather inserts efficiency and therapeutic effect.

Brief description of the drawings

Fig. 1 is the original state structural representation of Tube adapter for drum membrane of the present invention;

Fig. 2 is the working state structure schematic diagram of Tube adapter for drum membrane of the present invention;

Fig. 3 is the partial structurtes schematic diagram of Tube adapter for drum membrane of the present invention core bar groove when in running order;

Fig. 4 is the partial structurtes schematic diagram of Tube adapter for drum membrane of the present invention core bar groove in the time of original state;

Labelling in figure: 1, trocar sheath, 2, core bar, 3, push away handle, 4, back-moving spring, 5, groove, 6, control stick, 7, Compress Spring, 8, through hole, 9, housing, 10, push rod, 11, button, 12, back-up ring, 13, restoring spring.

Detailed description of the invention

As shown in the figure, a kind of medical Tube adapter for drum membrane, comprise trocar sheath 1 and be located in the core bar 2 of trocar sheath 1 inside, the tail end of described core bar 2 stretches out trocar sheath 1 and is connected with and pushes away handle 3, push away handle 3 and be arranged with thin rubber cover, and push away between handle 3 and trocar sheath 1 and be provided with back-moving spring 4, have the groove 5 of radially offering on described core bar 2, groove 5 is arranged on the position of core bar 2 near tail end.In groove 5, be provided with control stick 6, control stick 6 is connected by Compress Spring 7 with the bottom of groove 5, on described trocar sheath 1, be provided with the through hole 8 that can pass for control stick 6, these through hole 8 places are covered with housing 9, the position of the interior corresponding through hole 8 of housing 9 is equipped with push rod 10, the dead in line of the axis of push rod 10 and through hole 8, and the diameter of push rod 10 is less than the diameter of through hole 8, one end of push rod 10 is stretched out housing 9 and is connected button 11, button 11 is arranged with thin rubber cover, the other end of push rod 10 can stretch in the through hole 8 of trocar sheath 1, on described push rod 10, be also provided with back-up ring 12, back-up ring 12 is set on the push rod 10 that is positioned at housing 9 inside, and the distance away from button 11 one end of back-up ring 12 and push rod 10 is greater than the thickness of trocar sheath 1.Between described back-up ring 12 and trocar sheath 1, be provided with restoring spring 13, restoring spring 13 is set on push rod 10, and while making original state, back-up ring 12 presses closer housing 9 inwalls.

The using method of tympanostomy tube apparatus for placing of the present invention is: when original state, core bar is in contraction state, the head end of core bar does not stretch out trocar sheath, control stick is positioned at groove, and Compress Spring is in compressive state, control stick holds out against the inwall of trocar sheath, before use, press and push away handle core bar is moved, the head end of core bar stretches out trocar sheath, until control stick is corresponding with the lead to the hole site on trocar sheath, now, control stick stretches in through hole under the effect of Compress Spring, make a part for control stick in through hole, its another part is in groove, realize locked between trocar sheath and core bar, then breather is placed in to the external part of core bar from trocar sheath, singlehanded control stretched into core bar in auditory meatus and by breather and is accurately placed in tympanum incision, use forefinger pressing button, thereby push rod is moved radially, under the compressing of push rod, control stick finally from through hole depart from and under the effect of back-moving spring, realize the contraction of core bar in trocar sheath, then trocar sheath is extracted out from auditory meatus, complete the placement of breather.

Claims

1. a medical Tube adapter for drum membrane, it is characterized in that: comprise trocar sheath (1) and be located in the inner core bar (2) of trocar sheath (1), the tail end of described core bar (2) stretches out trocar sheath (1) and is connected with and pushes away handle (3), and push away between handle (3) and trocar sheath (1) and be provided with back-moving spring (4), on described core bar (2), there is the groove (5) of radially offering, described groove (5) is arranged on the position of core bar (2) near tail end, in groove (5), be provided with control stick (6), control stick (6) is connected by Compress Spring (7) with the bottom of groove (5), on described trocar sheath (1), be provided with the through hole (8) that can supply control stick (6) to pass, this through hole (8) locates to be covered with housing (9), in housing (9), the position of corresponding through hole (8) is equipped with push rod (10), the dead in line of the axis of push rod (10) and through hole (8), and the diameter of push rod (10) is less than the diameter of through hole (8), one end of push rod (10) is stretched out housing (9) and is connected button (11), the other end of push rod (10) can stretch in the through hole (8) of trocar sheath (1), on described push rod (10), be also provided with back-up ring (12), back-up ring (12) is set in and is positioned on the inner push rod (10) of housing (9), and the distance away from button (11) one end of back-up ring (12) and push rod (10) is greater than the thickness of trocar sheath (1).

2. the medical Tube adapter for drum membrane of one as claimed in claim 1, is characterized in that: between described back-up ring (12) and trocar sheath (1), be provided with restoring spring (13), restoring spring (13) is set on push rod (10).