JPS5930093B2 - tendon percussion instrument - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a medical instrument, and an object thereof is to obtain a key percussion instrument having a relatively compact and easy-to-handle structure.

According to the first aspect of the invention, the calf percussion device includes a percussion head and a plurality of telescoping connecting barrels.

Therefore, the cylindrical portion of the biliary percussion instrument according to the present invention can be nested into the cylindrical part to provide a relatively compact external shape.

In order to enable the percussion head to be placed horizontally on the barrel, the connection between the percussion barrel and the barrel is usually such that the longest dimension of the percussion head can be moved to a storage position in a plane parallel to the barrel. It is preferable that this be done.

Accordingly, a second feature of the present invention is that the key percussion device has a percussion head movably connected to a cylinder consisting of a plurality of telescoping cylinders, and the percussion head has two positions; That is, it is movable between a position in use and a storage position in which the longest dimension of the head is placed next to the cylinder.

Preferably, the connection means between the percussion head and the cylinder body is provided with a detent for positioning the percussion head at least in the use position.

Preferably, the detent is comprised of a ball means, which holds the percussion head in the use position during normal use, and can move it to the storage position as desired by applying a force greater than a predetermined value.

The barrel may include any number of barrels made of any suitable material, such as metal or hard plastic material.

However, in the preferred embodiment of the invention, the cylinders are 3 or 4
It comprises a metal cylinder, which is formed as a suitable handle or fitted into the handle.

Thus, when the barrel is extended, the end of the barrel remote from the percussion head is fitted into a tubular grip, for example made of rubber, metal or plastic material, which grips the outermost barrel. Preferably, it is a cover fit.

The percussion head consists of a disk made of metal or other dense material and surrounded by an impact member.

Suitable impact members include, for example, integral or affixed rims made of metal or other materials, with rings of plastic (e.g. elastomer) material, rigid combs or cellular rubber fitted into peripheral grooves of the disk-shaped member. There is.

It is preferable that the key percussion mallet can be applied to other medical examinations in addition to the examination of reflex action of the lungs using the percussion head.

For example, the barrel may be provided with a suitably shaped distal protrusion suitable for stimulating the skin.

The percussion device is adapted to house and provide a stimulation unit containing one or more skin stimulation objects, such as sharp pins or small brushes, in the hollow part of the barrel and/or in the percussion head. ing.

In many cases, when the overlapping parts of adjacent cylinders slide, friction and frictional resistance act, so the cylinders are held in a predetermined position in the axial direction. The frictional resistance can be increased by fitting shims and/or inserts made of plastic or other materials into the overlapping portions of adjacent cylinders.

Furthermore, positioning means may be used, for example, by providing a radially movable protrusion extending on the outer surface of the cylinder and arranging the protrusion so that it can be engaged with or detached from one or more holes of the adjacent cylinder. For example, it is possible to more reliably hold the cylinder at one or more relative positions in the axial direction.

If desired, relative rotation between adjacent barrels can be prevented, for example by providing cooperating longitudinal ribs and flutes on the adjacent barrels.

The invention will be explained in more detail by way of example with reference to the accompanying drawings, in which: FIG.

With reference to FIGS. 1 and 2, the illustrated leg percussion device has a percussion head 1 which includes a hard metal member 2, usually in the shape of a circular disc, with a circumferential groove 3. There is.

A rubber ring 4 is removably mounted in the circumferential groove 3 and is provided with an impact member with a deflecting surface in order to induce a reflex action of the key upon percussion.

The percussion head 1 is connected to the telescoping barrel 5 by a connecting member 6, and the percussion head 1 is pivoted at right angles to the longitudinal axis of the telescoping barrel 5.

The connecting member 6 includes a circular cylindrical connecting piece 7, one end of which has a circular shape formed concentrically on the end face of the member 2, for example by adhesive or by a screw connection as shown. It is connected within the cylindrical recess 8 .

Since the diameter groove 9 extends from the external force surface of the connecting piece I,
A pair of opposed partially circular cylindrical arms 10 are formed.

Furthermore, the coupling member 6 includes a central shaft element 11 .

The central axis element includes a hard circular cylindrical part 12 concentrically attached to the first cylindrical part 13 of the cylindrical body 5, and a cylindrical part 1 having a square cross section.
It has a flat plate-shaped protrusion 14 extending concentrically from the free end of 2.

The protrusion 14 is fitted between the two arms 10, and these are attached to the cylindrical body 5.
It is pivoted by a pin 15 extending at right angles to the longitudinal axis of.

The anti-rotation hole 16 is located at the bottom of the groove 9,
A spring 17 mounted in a hole 18 in the connecting piece 7 biases it into engagement with the abutting surface of the protrusion 14 .

Five notches 19 are formed on the surface of the protrusion 14 with which the ball 16 engages, and by being arranged and formed in this way, the percussion head 1 is pivoted around the pin 15. During this time, the percussion head and barrel can be positioned and held in five relative positions where the ball 16 engages the notch 19.

In the normal usage position shown by the solid line in Fig. 2, the percussion head 1 and the barrel 5 are concentric, and the longest dimension (diameter) of the percussion head is relative to the axis of the barrel. It is set at a right angle, and in this state, the percussion device is used to elicit the reflex action of the key by using the impact member on the percussion head.

In the two stowed positions shown by the dash-dotted lines in Fig. 2, the percussion head 1 and barrel 5 are tilted 90 degrees to either side from the operational position, and the longest dimension of the percussion head is The portions are substantially parallel to the axis of the barrel, and in this condition the key percussion device presents a relatively compact profile for ease of handling and storage.

In the two intermediate positions shown again in FIG. 2 by dashed lines, the percussion head 1 is tilted 45 degrees to either side from the normal use position with respect to the axis of the barrel 5.

The barrel 5 comprises four concentric, tubular, telescoping metallic barrels, each of which is connected to the central shaft element 1 of the coupling 6.
1 is attached to the first cylindrical part 13, and the second cylindrical part 2
0, the third cylindrical portion 21, and the fourth cylindrical portion 22.

Each barrel is substantially equal in length and has a tongue (not shown).
Since the radial gap is removed by the cylindrical body 5, the cylindrical body 5
can assume a variety of different external shapes as it is moved between a longest state where there is minimal overlap between adjacent barrels and a shortest state where adjacent barrels are substantially completely overlapped.

As shown in the embodiment in Fig. 3, each barrel is fitted with a shim that eliminates the radial gap between each barrel and provides a frictional constraint to the telescoping motion of the barrels. , so that the barrel is held at the adjusted length.

A tubular plastic support 23 with a pointed conical end 24 for skin irritation is attached to substantially the outer circumferential surface of the fourth barrel 22 by means of, for example, adhesive, a friction fit or a threaded connection. The solution is fixed throughout.

When using a key percussion device to diagnose the reflex action of a key using the impact member of the percussion head 1, as described above, the cylinder body 5 is partially or fully extended and the percussion head 1 is used for normal use. position.

If there is no such need, the barrel 5 can be fully retracted and the percussion head positioned in either storage position, giving the key percussion tool a relatively compact profile, so that the key percussion tool can be placed on clothing, for example. It can be easily handled and carried around by putting it in your pocket.

FIG. 3 shows a multi-purpose calf percussion instrument suitable for performing key reflex examinations as well as several other medical examinations.

The key percussion device has a percussion head that includes a generally circular, disc-shaped, hard metal member 26 having an axial bore 27;
A circumferential groove 28 is formed on the side surface of 6.

29 rubber J-rings are removably attached to the S circumferential groove 28, and are provided with an impact member with a flexible surface for testing the biliary reflex by percussion.

The percussion head 25 is pivotally attached to the telescoping barrel 30 by a circular cylindrical coupling piece 31 which is attached to the enlarged end 32 of the bore 27 and cooperates with an elongated solid circular cylindrical shaft element 33. connected.

The end of the connecting piece 31 remote from the percussion head 25 is provided with a diametric projection 34 which is connected to a pair of opposing partially circular cylindrical arms 36 provided at opposite ends of the shaft element 33.
It is fitted into a matching diameter groove 35 formed therebetween.

A pin 37 perpendicular to the longitudinal axis of the barrel 33 extends through the arm 36 and the projection 34 so that the percussion head 25 and the barrel 3
It is pivoted to 3.

The pivoting means can be secured against undesired movement between the percussion head 25 and the barrel 33, for example by providing a tight frictional engagement between the protrusion 34 and the arm 36, or by providing a suitable detent. Ru.

The telescoping barrel 30 further includes concentric tubular metal first and second barrel sections 38 and 39, respectively, the end of the shaft element 33 remote from the percussion head 25 being First cylindrical portion 38
The first cylindrical portion 38 is also slidably attached to the second cylindrical portion 39 one after another.

The force end of each barrel proximate the percussion head 25 is provided with an inwardly extending flange 40 and 41, respectively, the inner diameter of each flange extending beyond the shaft element 33 supported by the barrel. Or substantially equal to the outer diameter of the cylindrical portion 38.

Each percussion head 25 of the shaft element 33 and the first cylinder part 38
The outer circumferential surface of the force end isolated from the shaft is provided with one or more resilient and flexible metal shims 42 which are pressed against the inner surface of the adjacent tube and which are attached to the shaft element. 33 and barrel portions 38, 39 in the desired relative positions and, in addition, contributes to the stiffness of the shaft relative to the barrel when the barrel is partially or fully extended. do.

These effects are also caused by projections made of plastic or other material extending from the outer circumferential surface of the shaft element 33 and the first cylindrical section 38 and supported on the inner circumferential surface of the adjacent cylindrical section. It can also be obtained by alternatively adopting one of the two protrusions.

Furthermore, a positioning device is provided for holding the barrel in one or several relative axial positions, the positioning means being arranged such that the force end of the shaft element 33 remote from the percussion head 25 It includes an elongated, resilient, flexible jid 43 and a radial protrusion 44 that engages one or more holes 45 within the first barrel 38 .

Rod 43 also prevents relative rotation between shaft element 33 and first cylindrical portion 38 .

Such relative rotation prevention is also achieved by the shaft element 33 and the cylindrical portion 38,
This is also accomplished by providing the surfaces of 39 with matching longitudinal ribs and flutes.

The tubular plastic gripping part 46 is substantially attached to the second cylindrical part 39 by means of an adhesive, a frictional connection, a threaded connection, etc.
is fixed to the entire outer circumferential surface of the

Shaft hole 4γ with a narrow inner part 48 and a wide outer part 49
passes through the conical end portion of gripping portion 46 .

A stimulation element 51 having one or more purposes is provided, which stimulation element comprises a round cylindrical plastic stopper 52 with a pointed conical end 53 for stimulating the skin surface. The plug includes a sharp metal pin 54, a small brush or other skin irritant.

The key percussion device shown is provided with two stimulation elements and the pin is protected as shown when not in use.

As shown in Fig. 3, one stimulation element 51 is connected to pin 5.
4 into the gripper 46, and the plug 52 is removably attached to the outer portion 49 of the hole 47 and held in place, for example by a frictional or threaded connection.

ing.

If desired, a more secure attachment of the stimulation element 51 can be achieved by taking an insert made of metal, rubber or plastic material into the ejector and compressing the pin 54.

The second stimulation element 51 is attached to the percussion head 25 with the pin 54 extending through the hole 27 in the member 26 and into a continuous hole 55 in the connecting piece 31 .

Stimulation element 51 is held in place by means of frictional engagement between pin 54 and an insert mounted inside hole 27 and/or hole 55.

[Brief explanation of drawings]

FIG. 1 is a perspective partial sectional view of an embodiment of the percussion instrument according to the present invention. FIG. 2 is a longitudinal sectional view of an enlarged view of the key percussion device of FIG. FIG. 3 is a longitudinal sectional view of another embodiment of the thigh percussion instrument according to the present invention. Explanation of symbols, 1, 25... Percussion head, 5, 30
...Cylinder, 52...Skin irritation element.

Claims (1)

[Scope of Claims] 1. A percussion instrument characterized by comprising a percussion head and a cylindrical body having a plurality of cylindrical parts connected in a telescoping manner. 2. A percussion head is movably connected to a barrel having a plurality of telescopingly connected barrels, such that the percussion head is in the use position and the longest dimension of the percussion head is substantially within the barrel. 2. The percussion device according to claim 1, wherein the percussion head is movable between a storage position and a storage position in which the percussion head is placed horizontally on the cylindrical body so as to be parallel to the body. 3. The device according to claim 2, wherein the connecting means between the percussion head and the cylinder portion includes a rotation preventing means for at least positioning the percussion head in the use position. Biliary percussion instrument. 4. A patent characterized in that the anti-rotation means consists of a pole catch means suitable for holding the percussion head in the use position and movable to the storage position when excessive force is applied. A key percussion device according to claim 3. 5. The key percussion instrument according to any one of claims 1 to 4, characterized in that the cylindrical body consists of four metal cylindrical parts. 6. Claim 1, characterized in that a tubular gripping part made of a plus-arrow material is adapted to the outermost cylinder part.
~The key percussion device according to any one of Items 5 to 5. 7. The key percussion instrument according to claim 6, characterized in that a terminal protrusion 5 of an appropriate shape is formed on the gripping part for skin stimulation. 8. The calf percussion instrument according to any one of claims 1 to 5, characterized in that the outermost cylindrical part constitutes a gripping part and a distal end having a distal protrusion for skin stimulation. 9. Claims 1 to 9, characterized in that the percussion head is made of a disk-shaped metal member surrounded by an impact member.
The key percussion instrument according to any of paragraph 8. 10. The calf percussion device according to claim 8, wherein the impact member comprises a rubber ring attached to the outer circumferential groove of the disc-shaped member. 11. Key percussion instrument according to any one of claims 4 to 10, characterized in that it comprises at least one removable skin stimulation element. 12 engaging at least one resilient, flexible shim and/or plastic or other material to the overlapping portions of the adjacent barrels to hold the adjacent barrels in the desired relative position; Claims 1 to 1 characterized in that
The percussion device described in any of paragraph 1. 13. The calf percussion instrument according to any one of claims 1 to 12, characterized in that it has positioning means for holding the cylindrical portion at one or several positions in the axial direction. 14 The positioning means includes one or more radially movable protrusions extending in the direction of the external force disposed on the outer circumferential surface of the cylindrical part and one or more protrusions in the adjacent cylindrical part suitable for the protrusions to releasably engage. The thigh percussion device according to claim 13, characterized in that the thigh percussion device comprises a hole. 15. The key percussion instrument according to any one of claims 1 to 14, wherein adjacent cylindrical portions have longitudinal ribs and longitudinal grooves that cooperate with each other.