MXPA00008298A - Pressure change measuring device - Google Patents

Abstract

A pressure sensitive device includes a housing (12) having an interior cavity (14) and a narrow downwardly extending portion (24). A support plate (28) is disposed within the housing (12) cavity along with a flexible diaphragm (44) which is sealingly mounted to a bottom facing side of the support plate (28). A movement mechanism interconnected to the diaphragm (44) includes a pressure sensitive element which is responsive to the impingement of incoming fluid on the sealed diaphragm. The movement mechanism is disposed within a narrow extending portion of the housing to assume a compact and shallow profile which facilitates direct attachment to existing devices, such as blood pressure sleeves. In a preferred version, the movement mechanism is disposed within a cavity defined by the diaphragm (44).

Description

DEVICE FOR MEASURING THE PRESSURE WITH A LOW HEIGHT PROFILE FIELD OF THE INVENTION This invention relates to the field of measuring devices, and more specifically to a compact pressure sensitive device. BACKGROUND OF THE INVENTION Pressure measuring devices, such as sphygmomanometers, include a pneumatic bulb that inflates a pressure chamber of an attached cuff that is fitted over the arm or leg of a patient. A diaphragm or bellows assembly, sensitive to changes in the fluid pressure of the pneumatic bulb and the pressure chamber of the cuff is placed in a dial indicator housing. The quadrant indicator index is interconnected to the bellows assembly by a movement mechanism, where inflation of the bellows causes the corresponding peripheral movement of the index. Typically, the aforementioned in terms of movement mechanisms are quite intricate and complex, and are similar in terms of their manufacture and accuracy with Swiss watches. For example, in a movement mechanism, a pair of diaphragm springs are fixed adjacent to the opposite ends of an axis. A lower end of the shaft is brought into contact with the bellows assembly and a twisted bronze band disposed perpendicularly at the upper end of the shaft is connected in parallel by a portion of the horizontally disposed bent spring. As the axis deviates axially in response to inflation of the bellows, therefore the elbow spring part is also rotated in relation to an adjacent surface of the dial. These devices include a plurality of movement components, each having multiple support surfaces. Therefore, such known assemblies must be manufactured with high degrees of tolerance (and associated costs) in order to minimize errors. In addition, any of the adjustments required after the assembly of such mechanisms, such as such mechanisms, such as resetting the index or adjusting the sensitivity of the device, require substantial or at least significant dismantling and unwanted disassembly of the devices. measurement devices. Also, separate support plates are required to independently support the movement mechanism and bellows assembly, respectively, and to define an expansion chamber for the bellows therebetween. The accommodations that incorporate the same have compromised the ability to make a compact design. A simplified and more recent movement mechanism developed by Applicants includes a vertically disposed axial cartridge that includes a spirally wrapped tape spring having one end mounted on the axially movable elongated pin and the remaining end to a fixed part of the cartridge. A lower part of the pin is positioned in relation to the expandable bellows, wherein the subsequent axial translation of the pin elongates the spirally wrapped tape spring and produces a repeatable peripheral movement of the index supported on the upper end of the pin. Subsequently, and in order to further reduce all the size and complexity of the above structure, it has been determined that the diaphragm can be conveniently assembled and sealed in relation to the side facing the bottom of only one support plate , consequently making the design of a housing that holds the movement mechanism more compact. However, even with the improved design, there is still a continuing need in the field to provide an even more modern and compact accommodation. There is also a pre-existing need to further reduce the level of complexity in the manufacture of pressure measuring devices without compromising the reliability of the same. BRIEF DESCRIPTION OF THE INVENTION It is a primary object of the present invention to provide a pressure measuring device that overcomes the previous deficiencies of the prior art. It is another primary object of the present invention to provide a housing for the pressure measuring device, such as a cuff device for blood pressure, which is more compact and less expensive to manufacture than previously known devices as long as they are equally reliable. It is still another primary object of the present invention to provide a housing for a portable light weight pressure sensitive device that can be effectively coupled with an inflatable cuff, such as a cuff device for blood pressure. Therefore and in accordance with a preferred aspect of the present invention, there is disclosed a pressure sensitive device comprising: a housing having an interior cavity; a support plate disposed in said interior cavity and having a central opening; a diaphragm mounted on the side facing the bottom of said support plate and having at least one moving surface sensitive to changes in the pressure of a fluid entering the interior cavity of said housing and an elongated central part extending downwardly with respect to said support plate, said elongated central part having an internal cavity; a surface of the quadrant mounted on one side positioned facing the front of said support plate; and a movement mechanism interconnected at least with said movable surface of said diaphragm, said movement mechanism includes an axial cartridge disposed through said central opening of said support plate, wherein said housing includes a narrow section extended downward with the size to retain the central portion extended downwardly of said diaphragm having at least a part of said axial cartridge located inside the internal cavity. The movement mechanism preferably includes an axially displaceable arrow member having a spirally wound ribbon spring attached to one end thereof and an indicator member in the upper portion thereof, adjacent to a surface of the quadrant attached to the placed side of the shaft. facing the top of said support plate. The surface of the quadrant is preferably directly attached to the upper side of the support plate in a manner that allows the surface of the dial to be rotated to provide a zero adjustment relative to the indicator member of the movement mechanism. This eliminates the need for a zero or zero adjustment mechanism, and effectively reduces the number of assembled parts. In addition, a compact housing made in accordance with the above invention may include a coupling plug or other suitable element that allows the housing to be adjusted and sealed within other existing metering instrument housings with very little modification thereto. According to a preferred embodiment, the device can be directly fitted to a blood pressure cuff without the need for hoses typically found. Also, all the compactness of the housing allows numerous applications for any literal form of devices having a pressure sensitive element, including without limitation, valves, measuring devices, switches and leak detectors. In accordance with yet another preferred aspect of the present invention, there is disclosed a blood pressure measuring device comprising: a housing having an interior cavity; a support plate disposed in said inner housing and having a central opening; a diaphragm mounted on the side facing the inner part, said diaphragm having at least one moving surface sensitive to changes in the pressure of an incoming fluid and an elongated narrow central part extending downwardly with respect to said supporting plate said elongated narrow central section has an interior cavity; a surface of the quadrant having the indication signs mounted on the side facing the front of said support plate; and a movement mechanism interconnected at least with said movable surface of said diaphragm, said movement mechanism includes an axial cartridge disposed through said central opening of said support plate, said housing includes a narrow part extended downwards with the size for receiving the central part extended downwardly of said diaphragm and in which a part of said axial cartridge is disposed in said internal cavity. In a preferred embodiment, the downwardly extending portion of the housing can be directly coupled to inflate the cuff or cuff for arterial pressure. This fastening attachment can take place without the need for hoses. The most preferred device housing has a very low profile, protrudes from the outside of the bracelet and is sealed or otherwise secured to it. In addition, in another preferred variation, the housing can be selectively rotated with respect to the inflatable cuff, allowing any patient or caregiver to perform the measurement. In another preferred variation, the housing can be used with a cuff for RF-welded blood pressure in which the housing can be directly interconnected with the inflatable volume of the cuff through the sealed portion provided in the cuff to be attached to the extended down the housing. The proximity of the diaphragm within the interior housing to the incoming fluid and the arrangement of the movement mechanism within the housing fixing cavity provides significant overall savings in the space of the device cover providing a more efficient and thinner profile and allows the previous fixation attachment is worth it. In addition, the required additional functions typically separated from the blood pressure cuff device, such as the stethoscope adapter, can now be effectively combined with the housing and cuff in a more integrated and simpler and lighter weight system. In accordance with yet another preferred aspect of the invention, there is disclosed a pressure sensitive device comprising: a housing including an upper part, a lower part and an intermediate part interconnected with said upper part and said lower part, each one of said parts is hollow and has an inner cavity; a support plate disposed in said lower part, said support plate includes a central opening aligned with said intermediate part; a diaphragm assembly affixed to the side positioned facing the bottom of said support plate, said diaphragm having at least one surface that is movable responsive to the incoming fluid entering the interior of said lower portion of said housing; and a surface of the quadrant disposed in the upper part of said housing; and a movement mechanism interconnected at least with said movable surface of said diaphragm and said quadrant surface, said movement mechanism includes an axial cartridge disposed substantially within said intermediate portion, said intermediate portion being substantially narrower than said upper and lower portions . In a more preferred arrangement, a retaining slot can be cut or formed into an inflatable cuff such as a cuff for blood pressure, in which the middle and lower sections of the housing can be placed. The upper section having a profile with very low height can easily protrude from the outside of the bracelet and, therefore, can easily be assimilated into the integral configuration. In addition, due to the improved overall characteristics and with a lightweight nature of the housing a stethoscope attachment can be removably fixed to the housing and allow the assembly to perform multiple functions in a less separate and more unified type of device . This benefit has not been previously realized in this industry. An advantage is that a device using a movement mechanism such as the one described can conveniently be placed within the housing, in order to take advantage of its relatively small nature. In this manner, the housing can be designed more effectively by expanding the diaphragm or otherwise retaining the movement cartridge in a narrow part that allows for an effective interconnection to the other existing devices. Yet another advantage of the present invention is that creating a pressure sensitive housing with light weight as described allows for improved versatility and manufacturing capacity without compromising its reliability. Yet another advantage of the present invention, particularly in the measurement of blood pressure, is that the modernized housing described provides itself with a direct connection to the blood pressure cuff without the need for hoses and provides a more compact additional size and efficient packaging. In addition, the attachment attachment to the blood pressure cuff also allows other required functions such as the stethoscope to be combined with the housing. Still another advantage is that the housing made in accordance with the present invention has a relatively very low profile and consequently can be easily configured for use in other known pressure sensitive devices, such as leak detectors, force measuring devices , barometers, pressure sensitive switches, valves and the like. In addition, the simplicity of this design provides itself to any literal form of pressure-sensitive device or that responds to pressure. These and other objects, features and advantages will become apparent with the following Detailed Description of the Invention, which should be read in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a sectional view of a pressure measuring device having a housing made in accordance with the first embodiment of the present invention; Figure 2 is an enlarged sectional view of the pressure measuring device of Figure 1, representing alternate elements for attachment to a surface of the rotating dial in relation to the device; Figure 3 is a sectional view of a pressure measuring device having a housing made according to a second embodiment of the invention; Figure 4 is a sectional view of a pressure measuring device having a housing made according to a third embodiment of the invention; and Figure 5 is a partial sectional view of a pressure measuring device manufactured in accordance with a fourth preferred embodiment of the present invention used with an inflatable cuff for blood pressure. DETAILED DESCRIPTION OF THE INVENTION The present invention is described herein with reference to several preferred embodiments, each of which relates to blood pressure measuring devices. However, it will be apparent to a person with sufficient experience in the field that other variations and modifications can be made using the inventive concepts described herein, as well as alternative applications other than for blood pressure measurement, including barometers, indicators of the pressure of blood vessels, pressure sensitive switches, valves and any literal device that requires a pressure sensitive element. Likewise and through the course of the following discussion, terms such as "upward", "downward", "upper", "lower", "upper", "lower" and the like are used to provide a schematic of reference in relation to the figures that are attached. However, these terms will not be treated as a limitation in relation to the invention described herein. With reference to Figure 1 there is shown a blood pressure measuring device 10 manufactured in accordance with a first embodiment of the invention. The device 10 includes a generally cylindrical housing 12 having an inner cavity 14 defined by a peripheral inner wall 16, an open upper end 18, and a lower end 20. A window or bubble 22, made of glass or any suitable transparent material, it is fixed in a known manner to the open upper end 18 of the housing 12. The lower end 20 of the housing 12 has a diameter tapering inwardly below a narrow downwardly extending portion 24 having a lower opening 26 serving as a gate to admit the fluid, as described in more detail below. The diameter of the narrow extended portion is preferably about one third that of the diameter of the larger part of the housing, although with the following discussion it will be apparent that this parameter may vary appropriately. The inner cavity 14 of the housing 12 has a size to retain a number of parts of the component, including the support plate 28. The support plate 28 is a generally flat member having the sides placed facing the top and face lower 30, 32, as well as a central through-hole 34. A cuff fits for pressure 36 fixed to the side positioned facing the top 30 of the support plate 28 extends within the central through-hole 34 and is used for retaining the movement mechanism 40, which is described in greater detail below. The peripheral inner wall 16 further includes a similar part 19 which has a size to support the outer edge 21 of the support plate 18 immediately below them and at a predetermined height within the housing 12. The central through opening 34 is shown to be substantially aligned with the lower opening 26 according to this embodiment but this alignment is not essential.

A diaphragm subassembly 42 includes a flexible diaphragm 44 that does not attach non-fixedly to the side positioned facing the bottom 32 of the support plate 28. The diaphragm 44 is flat, widely extending horizontally and includes a plurality of similar surfaces. to a wave 49. The outer edge 47 of the diaphragm 44 is clamped thereto by a circular packing 46 disposed in a peripheral shoulder 45 extending upwardly from the lower end 20 of the housing 12. The circular packing 46 not only supports to diaphragm 44 instead, but also provides a seal, the function of which will be described in more detail below. According to the invention, the most central part of the horizontal planar diaphragm 44 is cut or otherwise removed and replaced with a continuous section extending downwards, hereinafter referred to as the trough 48, which it is welded or otherwise fixed to the diaphragm or is integral with the rest of the diaphragm. The trough 48 is a hollow cylindrical section extending into the downwardly extending portion 24 of the housing 12 and having a cavity 50 having a width dimension that is approximately equal to that of the cuff adjusts for pressure 36. One end bottom 53 of the trough 48 includes a hardened or hardened contact surface such as a diamond 52 on the inside thereof.

The movement mechanism 40 according to the present invention includes an axially displaceable arrow member 54, which is completely enclosed within a tubular member 56 with the exception of the upper and lower projection ends 53, 55, respectively. A spring-like section similar to a flexible thin ribbon 70 is fixedly attached to one end 61 adjacent the lower end of the tubular member 56 and at the opposite remaining end 59 to the axially displaceable arrow member 54 around which the ribbon spring 70 is attached. wraps helically or spirally. The outer tubular member 56 includes a set of external threads 73 extended on an upper part of its length which engage the corresponding internal threads 75 provided in the cuff fit for pressure 36. The tape-like section 70 is made of an alloy copper with beryllium, steel for spring or other similar material. The hollow tubular member 56 includes an integral top cover portion 58 having a diameter that is larger than the rest of the member, the cover portion having a flange 57 which is loaded against a guide spring 68 disposed within the depression annular 68 of the cuff adjusts for pressure 36. The upper cover portion 58 and the guide spring 68 are used to adjust the full sensitivity of the movement mechanism 40. When properly positioned, the majority of the movement mechanism 40 extends below the support plate 28 and inside the cavity 50 defined in the trough 48, which is already placed in the downwardly extended part 24 of the housing 12. In this position, the lower end 55 of the arrow member 52 is close to the surface of contact 52. A surface of the quadrant 63 having a measurement signal (not shown) is fixed to the side positioned facing the top 30 of the support plate 28 through the center aperture. which is sized to fit over the pressure-adjusted cuff 36. An O-pack 65 disposed in a slot 67 of the cuff 36 engages the inner edge of the dial surface 63. An indication member 62 is mounted on the cuff. upper end protruding from the arrow member 54. In operation, a change in the pressure of an incoming fluid (in this example, air) enters the lower opening 26 of the housing 12 and more particularly to the interior cavity of the housing 12. seal provided on the outer edge 47 of the diaphragm 44 by the circular packing 46 clamped against the side facing the bottom 32 of the support plate 28 prevents additional air from entering the interior cavity 14. Consequently, the increase in pressure causes an axial movement of the trough 48 and the inner contact surface 52 pushes up against the lower end 55 of the axially displaceable arrow member 54. As a result, the tape spring 70 extends against of the fixed end 60 of the tubular member 56, causing the arrow member 54 to rotate. The rotation of the arrow member 54 causes a corresponding peripheral movement of the indication member 62 fixed to the upper end 53 of the arrow member 34 in relation to the signal (not shown) provided on the surface of the dial 63. The zero adjustment of the assembly The above is a relatively simple procedure, compared to previously known devices. First, the bubble 22 is withdrawn from the open upper end 17 of the housing 64. The engagement of the circular packing 65 against the inner edge of the surface of the dial 63 allows the surface of the dial to rotate freely in relation to the position of the member. 62. Sensitivity adjustments may also be made to the upper part of the assembly by rotating the upper cover part 58 against the guide spring 58 within the depression 69 of the cuff set for pressure 36, in order to adjust the sensitivity of the tape spring 70 for a given rotation. A similar mechanism is described in U.S. Patents. Serial No. 08 / 972,583 and Serial No. 09 / 172,552 [Nos. from the attorney's file 281_269 and 281_290, respectively], all the contents that have been previously incorporated as reference. Variations of the previous assembly are possible. For example and with reference to Figure 2, and instead of the circular packing 65 of Figure 1, the surface of the quadrant 63A or the support plate 28A, may be suitably tapered, adjacent to its central openings in relation to a groove 80. provided on the bracelet 36A in order to allow the surface of the dial to be rotated without requiring its removal. Alternatively, the movement mechanism 40 may include a feature for zeroing as described in the already incorporated U.S. Patents Serial No. 08 / 972,583 and Serial No. 09 / 172,552. With one pass, it will be noted that Figure 2 only illustrates a part of the whole assembly in order to amplify the previous discussion. A housing design according to a second embodiment is illustrated in Figure 3. Similar parts are classified herein with the same reference numbers for reasons of clarity. As in the preceding embodiment, the device includes a housing 12 having an inner cavity 14 having a size for retaining the diaphragm subassembly 42 and a support plate 28, the housing further having a downwardly extending portion 24. A mechanism for movement 40 is disposed through an opening in the upper plate 28 so that the lower end 55 of an axially displaceable arrow 34 of the mechanism is disposed in proximity to the contact surface 52 of the downwardly extending portion 48 of the diaphragm. The diaphragm, meanwhile, is fixed to the side positioned facing the bottom 32 of the top plate, and sealed therein. The incoming fluid through the lower opening 26 causes a deflection of the extended portion 48 of the diaphragm 44 against the axially displaceable arrow 34, thus causing rotation of the arrow by means of a fixed tape spring 70 in the manner previously described. The rotation of the arrow 34 produces a corresponding peripheral movement of the indication member 62 in relation to the surface of the quadrant 63 placed on the placed side of the letter to the upper part 30 of the support plate 28, which can be observed through the transparent window 22 of the housing 12 employing the circular packing 46. In this embodiment, the device includes a coupling plug 82 provided on the outside of the extended downward part 24, the plug includes a peripheral groove 114, which is sized to retain a circular packing 118 or other similar sealing element. For example, the coupling plug 82 can use a threaded pipe (not shown). The coupling plug 82 provides a suitable modification to allow the device to be attached to other housing of existing pressure devices, having pressure sources or not, such as those manufactured by Welch Allyn, Inc. or others. With a pass, it will be noted that the position of the lower opening 26 is not essential; that is, the incoming fluid may enter the interior cavity 14 from the gate arranged horizontally or otherwise arranged, while the opening is below the seal provided by the circular packing 118. To further illustrate the variations, a third embodiment of a housing 12B, manufactured in accordance with the present invention, includes a diaphragm 44B, which is different from the preceding embodiment, is a substantially vertical member having a total width dimension that is considerably narrower than the preceding one. As a result, there is no need to provide a support plate 28B, which conforms to the peripheral inner wall 16, but is preferably suitably positioned by known elements in a cavity 51 provided in the lower end 20B of the housing 12B. Similar to the preceding embodiment, the outer edge 47B of the diaphragm 44B is sealed using a circular packing 46B that effectively clamps the outer edge to the placed side of the letter to the bottom of the support plate 28B. The movement mechanism 40 is disposed essentially below the support plate 28B through the central opening in a cuff fitted for pressure 36B and threaded in engagement therewith. The majority of the movement mechanism 40 is disposed within the cavity defined by the essentially vertical diaphragm 44B, this particular diaphragm having wave similar surfaces 49B disposed vertically. The adjustments for controlling the sensitivity of the movement mechanism 40 employing guide springs 68B perform similarly to those previously described. Overall, the present embodiment defines a profile with very little height in the upper part of the housing 12B. Although not shown, the lower end of the housing 12B can be used as a coupling plug to secure the housing in other housings of measuring devices (not shown) either as a new assembly or a retro-fitted one. With reference to Figure 4, a housing 140 formed in accordance with a fourth embodiment of the present invention is described herein in combination with a cuff device for arterial pressure. For purposes of the present embodiment, housing 140 is used with a cuff or cuff for specific blood pressure described in greater detail in U.S. Pat. Commonly assigned and co-pending No Serial 09 / 109,779, the contents that are incorporated herein in their entirety. Briefly, the inflatable cuff 142 is manufactured using a pair of cuff part 144, 146 which are jointly sealed using continuous RF (Radio Frequency) welds to form an integral structure and which defines an inflatable internal volume 148. The cuff 142 is wrapped around the arm 170 of a patient in a commonly known manner. Different from the preceding embodiments, the housing 140 described in the present embodiment includes an upper portion 152, a lower portion 154 and an intermediate connection portion 156. The upper and lower portions 152 and 154 are substantially cylindrical and have approximately the same dimensions as that the intermediate portion 156 has a substantially smaller diameter and therefore considerably narrower than any adjacent section, which defines a configuration formed in some manner similar to a yo-yo. According to the present embodiment, the intermediate portion 156 has a diameter that is approximately one third that of the remaining sections 152, 154, although this parameter may vary depending on the relative size of the movement mechanism used therein. Each of the above sections 152, 154, 156 are hollow and combine to form an interior cavity 158, similar in nature to those previously described. According to one embodiment, a support plate 165 (shown translucently) is placed within the lower section 154 of the housing 140 while the surface of the quadrant 167 (also shown translucently) is disposed in the upper section 152. A Movement mechanism 171 (also shown translucently) similar to that previously described interconnects the surface of the dial 167 and the support plate 165 and is located primarily in the intermediate part 156. In accordance with this embodiment, a slot 162 is cut within the cuff parts 144, 146. The slot 162 provides a retention similar to a button on the bottom 154 and the intermediate narrow portion 156, with the top 152 projecting from the outside of the cuff 142 A gate 176 is connected by means of a hose 178 to the inflatable internal volume of the cuff 142, which is inflated by a pneumatic bulb (not shown) in a known manner. In operation, the device operates similarly to that previously described, except that a removable stethoscope adapter 166 can be releasably attached to the lower part of the housing 150, forming an integral unit. The lower part of the housing 150, according to this embodiment, includes a portion of the extended fastening attachment 174 having a size for coupling the female connector 180 or other suitable means with the adapter. All known anterior fists require the separation between the fist and the stethoscope. With an altogether low profile of the previous housing 150, the use of an adapter 166 makes it worthwhile. The stethoscope adapter 166 is a conical member forming the stethoscope plug having connecting ear pieces (not shown) attached to the gate 184. In use, the adapter 166 can be freely rotated relative to the housing 140, allowing The review by a patient or the person who cares for it performs equally well. It will be readily apparent to those with experience in the field that other variations and modifications are possible within the spirit and scope of the invention, defined by the following appended claims. For example, the housing described in Figure 3 can be used in conjunction with a cuff as described in Figure 5, by inserting the coupling plug 82 into a receiving hole (not shown) provided in the cuff. Likewise, the above assemblies may include multiple diaphragms and / or housings which are modified in the above manner to allow efficient placement of the movement mechanism therein.

Claims (29)

1. CLAIMS 1. A pressure sensitive device comprising: a housing having an interior cavity; a support plate disposed in said interior cavity and having a central opening; a diaphragm mounted on the side facing the bottom of said support plate and having at least one moving surface sensitive to changes in the pressure of a fluid entering the interior cavity of said housing and an elongated central part which extends downwardly with respect to said support plate, said elongated central part having an internal cavity-a surface of the quadrant mounted on one side facing the front of said support plate; and a movement mechanism interconnected at least with said movable surface of said diaphragm, said movement mechanism includes an axial cartridge disposed through said central opening of said support plate, wherein said housing includes a narrow section extended downward with the size to retain the central portion extended downwardly of said diaphragm having at least a part of said axial cartridge located inside the internal cavity.
2. 2. A pressure sensitive device as described in Claim 1, wherein said movement mechanism further includes an axially displaceable arrow member and a thin tape spring member wrapped helically about said arrow member, said member tape has one end fixedly attached to said axial cartridge and the other end mounted to said arrow member, said arrow member includes an indication member fixed to an upper end and having a lower end which is disposed in proximity to when minus a moving surface of said diaphragm.
3. A pressure sensitive device as described in Claim 1, including elements for securing said quadrant surface to said support plate to allow said quadrant surface to be rotated without requiring its removal.
4. 4. A pressure sensitive device as described in Claim 1, wherein said narrow downwardly extending portion of said housing includes elements for securing said housing to other existing devices.
5. A pressure sensitive device as described in Claim 4, wherein said fixing element includes a sealing element for providing a seal for fluid between said housing and said other existing device.
6. 6. A pressure sensitive device as described in Claim 5, wherein said fixing element includes a peripheral external groove provided on the narrow part extended downwardly and the sealing member with a size to fit within said groove.
7. 7. A pressure sensitive device as described in Claim 6, wherein said sealing member is a circular package.
8. 8. A pressure sensitive device as described in Claim 5, wherein said other existing devices include a cuff for blood pressure, said cuff has a receiving orifice having a size for directly receiving said narrow portion downwardly.
9. 9. A pressure sensitive device as described in Claim 8, wherein said housing can be freely rotated when attached to said bracelet.
10. 10. A pressure sensitive device as described in Claim 1, wherein said narrow downwardly extending portion has a diameter that is at least one third of the diameter of the remainder of the housing.
11. 11. A blood pressure measuring device comprising: a housing having an interior cavity; a support plate disposed in said inner housing and having a central opening; a diaphragm mounted on the side facing the inner part, said diaphragm having at least one moving surface sensitive to changes in the pressure of an incoming fluid and an elongated narrow central part extending downwardly with respect to said supporting plate said elongated narrow central section has an inner cavity; a surface of the quadrant having the indication signs mounted on the side facing the front of said support plate; and a movement mechanism interconnected at least with said movable surface of said diaphragm, said movement mechanism includes an axial cartridge disposed through said central opening of said support plate, said hog includes a narrow part extended downwards with the size for receiving the central part extended downwardly of said diaphragm and in which a part of said axial cartridge is disposed in said internal cavity.
12. 12. A blood pressure measuring device as described in Claim 11, wherein said movement mechanism further includes an axially displaceable arrow member and a thin tape spring member wound helically about said arrow member said strap member has one end fixedly attached to said axial cartridge and the other end mounted to said arrow member, said arrow member includes an indication member fixed to an upper end and having an outer end. or lower that is disposed in proximity to when you are attaching a moving surface of said diaphragm.
13. 13. A device for measuring blood pressure as described in Claim 11, including elements for securing said quadrant surface to said support plate to allow said quadrant surface to be rotated without: requiring its removal.
14. 14. A blood pressure measuring device as described er. Claim 11, wherein said narrow outer part of said hog includes coupling elements for directly attaching said hog. :: to an inflatable bracelet.
15. 15. A device :; of blood pressure measurement as described er. Claim 14, wherein said inflatable cuff includes 7 a receiving hole with a size to receive the narrow part extended downwardly of said hog.
16. 16. A device:; of blood pressure measurement as described in Claim 15, which includes elements to provide a seal for fluid between said hog and said inflatable cuff when said narrow part extends downwardly and the sealing member has a size to fit inside said slot.
17. 17. A blood pressure measuring device as described in Claim 15, wherein said sealing member includes a peripheral external groove provided in said narrow part extended downwardly and the sealing member is sized to fit within said groove.
18. 18. A blood pressure measuring device as described in Claim 17, wherein said sealing member is a circular package.
19. 19. A pressure sensitive device as described in Claim 15, wherein said hog can be freely rotated when attached to said bracelet.
20. 20. A pressure sensitive device as described in Claim 11, wherein said narrow portion extending downwards has a diameter that is at least one third of the diameter of the remainder of the hog.
21. 21. A pressure sensitive device comprising: a hog including an upper portion, a lower portion and an intermediate portion interconnected with said upper portion and said lower portion, each said portion being hollow and having an interior cavity; a support plate disposed in said lower part, said support plate includes a central opening aligned with said intermediate part; a diaphragm assembly affixed to the side positioned facing the bottom of said support plate, said diaphragm having at least one surface that is movable responsive to the incoming fluid entering the interior of said lower portion of said housing; and a surface of the quadrant disposed in the upper part of said housing; and a movement mechanism interconnected at least with said movable surface of said diaphragm and said quadrant surface, said movement mechanism includes an axial cartridge disposed substantially within said intermediate portion, said intermediate portion being substantially narrower than said upper and lower portions .
22. 22. A pressure sensitive device as described in Claim 21, wherein said movement mechanism includes an axially displaceable arrow member and a thin tape spring member wound helically around said arrow member, said member of tape has one end fixedly attached to said linear cartridge and the other end mounted to said arrow member, said arrow member includes an indication member fixed to an upper end and having a lower end which is disposed in proximity to at least one moving surface of said diaphragm.
23. 23. A pressure sensitive device as described in Claim 21, wherein said narrow downwardly extending portion of said housing includes an extended mounting portion.
24. 24. A pressure sensitive device as described in Claim 23, including a stethoscope adapter mountable to said extended mounting portion of said housing.
25. 25. A pressure sensitive device as described in Claim 21, including an inflatable cuff, said cuff includes elements for receiving said intermediate narrow portion and said lower portion of said housing in order to allow said upper portion to protrude from outside of said bracelet.
26. 26. A pressure sensitive device as described in Claim 25, wherein said bracelet includes a pair of bracelet parts that are welded together by RF, said receiving elements include a groove that is formed through said portions of the bracelet. Soldier bracelet.
27. 27. A pressure sensitive device as described in Claim 26, including a stethoscope adapter that attaches directly to said extended mounting portion of said housing.
28. 28. A pressure sensitive device as described in Claim 27, wherein said stethoscope adapter can be freely rotated about the axis of the fixation attachment when it is fixed to said housing.
29. 29. A pressure sensitive device as described in Claim 21, wherein said intermediate portion housing said movement mechanism has a • total diameter that is at least half the diameter of the upper and lower sections of said housing.