CN2184405Y - Closed chest mutifunction stethoscope - Google Patents

Abstract

The utility model discloses a closed type chest piece multifunctional stethoscope. The utility model is characterized in that the chest piece is a closed type casing, an opening in the center of a front casing is provided with a mastoid cover, and the opening of a back cover is connected with one end of a tee through a joint by a rubber pipe. A vibrating diaphragm is arranged in the casing. The front and the back of the vibrating diaphragm are respectively provided with a rubber ring and a pressing plate which are fixed into integration by bolts. A sealing washer is arranged between the vibrating diaphragm and the back cover. Other parts in the casing which are fixed into integration with the vibrating diaphragm do not contact with the casing. The mastoid cover is tightly sleeved on the front rubber ring of the vibrating diaphragm. The improved stethoscope with the advantages of high sensitivity, accurate positioning, and convenient operation can capture sounds which are difficult for the existing stethoscope to capture, and can expand the application field.

Description

Closed chest mutifunction stethoscope

This utility model relates to a kind of improved stethoscope.

Start from 1860s, on clinical medicine, obtain the stethoscope of extensive use, mainly form by breast tool, ear piece, threeway, sebific duct.Breast has two kinds of membrane type and clock-types, and people do not have special adaptations to it so far.There is Crinis Carbonisatus to understand stethoscope, becomes the signal of telecommunication to be amplified the conversion of signals that obtains,, can not use clinically because of producing distortion and additional noise by pick off with electronic installation.Stethoscope with clock-type breast tool is mainly used in the low pitch noise of auscultation heart, and it and human body skin contact surface are less, and the sound of conduction is less, and clinical practice is extensive not as the stethoscope with membrane type breast tool, but has the stethoscope accurate positioning of membrane type breast tool.Stethoscope with membrane type breast tool is fit to the high-pitched tone noise and the patient weak, seriously ill, that be difficult to stand up of auscultation heart, and clinical practice is extensive.The stethoscope that the contact surface of it and skin has clock-type breast tool is big, and the sound of conduction is also bigger, but the location is accurate not as the stethoscope with clock-type breast tool.Therefore, two kinds of breast tools will possess simultaneously in the clinical practice, select its use, and are very not convenient.No matter existing stethoscope with membrane type or clock-type breast tool all because of the constructional limitation of its breast tool, is limited to the reason on sensitivity and the volume, can not realize the dressing auscultation, and is autumn and winter season, just very inconvenient to old man, child and weakling.Particularly the breast abdomen is wrapped with the surgical patients of binder, and auscultation is restricted, thereby its application is limited to.

The purpose of this utility model provides a kind of improved stethoscope, and it is at existing stethoscope performance, from improving conducting power and sensitivity, strengthen the ability that overcomes obstacles, it is more accurate to locate, and requires aspect such as easy to use to design, thereby further widens its application.

For achieving the above object, the technical solution adopted in the utility model is: adopt a kind of new breast tool 10 on common stethoscope, it is to link closely into closed shell by fore shell 8 with back cover 9, and fore shell 8 central openings have mastoid process cover 6, and back cover 9 perforates are connected by an end of jointing adhesive pipe 11 and threeway 12; Vibrating diaphragm 1 is arranged, central openings in the closed shell; Its front end has the preceding cushion rubber 2 of vibrating diaphragm, also has the vibrating diaphragm front pressuring plate 14 of central openings before vibrating diaphragm on the cushion rubber 2; There is cushion rubber 3 behind the vibrating diaphragm its rear end, also has the vibrating diaphragm rear fender 5 of central openings on cushion rubber behind the vibrating diaphragm 3; Cushion rubber 3, vibrating diaphragm rear fender 5 assemble successively behind above-mentioned vibrating diaphragm front pressuring plate 14, the preceding cushion rubber 2 of vibrating diaphragm, vibrating diaphragm 1, the vibrating diaphragm, are fixed into one with bolt 7; Also have seal washer 4 between vibrating diaphragm 1 and back cover 9, seal washer 4 presses with vibrating diaphragm 1, with vibrating diaphragm 1 fixedly other parts of all-in-one-piece do not contact with housing; Cushion rubber 2 before the described mastoid process cover 6 tight fit vibrating diaphragms.This structure makes the aeroseal in vibrating diaphragm 1 and the back cover 9.During use, with mastoid process cover 6 contact auscultation positions, cause vibrating diaphragm 1 vibration, vibrating diaphragm 1 forces sealed air vibration, from breast tool 10 joints through sebific duct 11, that threeway 12 reaches ear piece 13 is pleasant, reaches the purpose of auscultation.

The utlity model has following advantage: the loudness of heart sounds of 1, hearing strengthens, and respiratory murmur, hear sounds, heart murmur keep original tonequality, and be undistorted; 2, little with skin contact, noise, rale accurate positioning; 3, highly sensitive, the ability that overcomes obstacles strengthens, and can clearly hear hear sounds and respiratory murmur when the person under inspection autumn clothing, is convenient at cold snap old man and child's auscultation, and can be wrapped with the surgical patients auscultation of binder to the breast abdomen; 4, because sensitivity improves, loudness increases, and can capture the peripheral vessels pollex sound that general stethoscope can not capture, and has expanded application; 5, simple in structure, need not big input, as long as on traditional stethoscope breast tool, improved, just can produce in batches.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the structural representation of the closed breast tool of this utility model multi-function stethoscope.

Fig. 2 is breast tool 10 structural representations of closed breast tool multi-function stethoscope.

Fig. 3 is breast tool 10 side views.

Fig. 4 is breast tool 10 sectional views.

Fig. 5 is breast tool 10 front section views.

Fig. 6 is breast tool 10 reverse side cutaway views.

With reference to Fig. 1-Fig. 6, vibrating diaphragm 1 adopts the film film of existing stethoscope membrane type breast tool, central bore, aperture 2-3mm.Cushion rubber 2 adopts elastomeric material, thick 5mm, internal diameter 2-3mm, external diameter 18mm before the vibrating diaphragm.Vibrating diaphragm front pressuring plate 14 adopts the metallic plate of thick 1mm, diameter 16mm, central bore, aperture 2-3mm.Cushion rubber 3 also adopts elastomeric material behind the vibrating diaphragm, thick 4mm, internal diameter 2-3mm, external diameter 18mm.Seal washer 4 adopts thick 1mm, internal diameter 24mm, the elastomeric material of external diameter 35mm.Vibrating diaphragm rear fender 5 adopts the metallic plate of thick 1mm, diameter 18mm, central bore, aperture 2-3mm.Mastoid process cover 6 adopts the chrome-plated metal material, requires smooth surface, in order to avoid scratch skin, its height is 7mm, internal diameter 18mm, thick 1mm.Back cover 9 adopts existing membrane type breast tool back cover, and its screw thread is deepened 1mm.Fore shell 8 also adopts same membrane type breast tool fore shell, central circular hole diameter 22mm.Will be with upper-part by the figure assembling.Air in vibrating diaphragm 1 and the back cover 9 seals because of linking closely of front and rear casing, and vibrating diaphragm 1 forces the air vibration in it,, propagates in airtight system along sebific duct 11, threeway 12, ear piece 13 through breast tool 10 joints, does not almost have transmission loss.The another side of vibrating diaphragm 1 seals because of fore shell 8, and it contacts with the auscultation position by mastoid process cover 6, does not directly contact skin, and the degree of freedom of vibrating diaphragm 1 vibration is big, and amplitude is not interrupted, and energy loss is little, and the existing stethoscope of oscillation intensity increases.Mastoid process cover 6 is fixed on vibrating diaphragm 1 central authorities, and vibrating diaphragm 1 central authorities are sensitive spots of vibrating diaphragm impression vibration, and the slight vibration of mastoid process cover 6 causes vibrating diaphragm 1 judder.All these cause this closed breast tool multi-function stethoscope to have very high sensitivity, and mastoid process cover 6 is done smallerly in addition, and is little with the contact surface at auscultation position, and localized accuracy is also very high.Because its frequency response is wide, the heart murmur of high low pitch is almost had same sensitivity, in clinical practice, only just can satisfy different needs with an a kind of like this stethoscope breast tool, brought convenience to use.The raising of sensitivity, the ability that overcomes obstacles has also just strengthened, and the problem that surgical patients that autumn clothing auscultation and breast abdomen be wrapped with binder is difficult to auscultation and also just is readily solved.High sensitivity makes it can hear the sound that existing stethoscope is difficult to hear and scratches shallow table tremulous pulse pollex sounds such as tremulous pulse, superficial temporal artery, cooperates the super and B ultrasonic line of the M probe that shakes can realize sync check, further also can expand to aspects such as for animals and industrial equipment auscultation.

Claims (1)

1, a kind of closed breast tool multi-function stethoscope, have ear piece [13], threeway [12], sebific duct [11], breast tool [10], one end of its threeway [12] is connected with breast tool [10] with sebific duct [11], and the two ends in addition of threeway [12] are connected with ear piece [13] with sebific duct [11], it is characterized in that:

Breast tool [10] links closely into closed shell by fore shell [8] with back cover [9], and fore shell [8] central openings has mastoid process cover [6], and back cover [9] perforate is connected by the end of jointing adhesive pipe [11] with threeway [12];

Vibrating diaphragm [1] is arranged, central openings in the closed shell; Its front end has the preceding cushion rubber [2] of vibrating diaphragm, and cushion rubber before vibrating diaphragm [2] is gone up the vibrating diaphragm front pressuring plate [14] that also has central openings; There is cushion rubber [3] behind the vibrating diaphragm its rear end, and cushion rubber behind vibrating diaphragm [3] is gone up the vibrating diaphragm rear fender [5] that also has central openings; Cushion rubber [3], vibrating diaphragm rear fender [5] assemble successively behind above-mentioned vibrating diaphragm front pressuring plate [14], the preceding cushion rubber [2] of vibrating diaphragm, vibrating diaphragm [1], the vibrating diaphragm, are fixed into one with bolt [7]; Also have seal washer [4] between vibrating diaphragm [1] and back cover [9], seal washer [4] presses with vibrating diaphragm [1], with vibrating diaphragm [1] fixedly other parts of all-in-one-piece do not contact with housing;

Described mastoid process cover [6] is the preceding cushion rubber [2] of fit vibrating diaphragm closely.

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