JPH06154174A - Exchange-type air pipe contacting plug for blood pressure monitoring apparatus - Google Patents

Abstract

PURPOSE: To provide a connector of an arm band for blood pressure measurement providing replaceable air hose connection for mounting to devices in different forms. CONSTITUTION: Connector 1 has a first end that is connected to piping on the side of an armband 11, or for example, has an outer surface with cuff. Female lure connection as well as screw bayonet connection is made on the second end. Specifically, arm band 11 is connected freely to a male lure connection portion of piping 12 or a male screw bayonet connection of piping 12 that extends out of each apparatus.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a patient monitoring device and more particularly to a member for providing a replaceable connection between the device and a patient mounted working portion of the device.

[0002]

BACKGROUND OF THE INVENTION Many devices have been devised for non-invasive measurement of blood pressure in patients. These devices are configured to wrap around the patient's forearm in contact with the artery to make blood pressure measurements, and have a bladder in the form of a detachable and adjustable bracelet and data generated through the bracelet or bladder. And a processing unit for reading the. The armband or the air bag is connected to the arithmetic processing unit through a pipe and a transducer. In operation, the device inflates the braid by supplying compressed air via tubing to the bladder to compress the artery. Adjusting the pressure in the cuffs causes various manipulations of the air pressure in the cuffs to read the response to such a decrease in pressure through the transducer.
The transducer converts pressure manipulations into electrical signals for calculation in the processor.

In order to properly measure the blood pressure of various patients, arm bands of different sizes are prepared. Armband sizes vary from very small armbands for newborns to large armbands for adult thighs. Each of these cuffs must be detachable from the monitor to measure the patient's blood pressure. Although the bracelet is relatively versatile in its size and construction, the device and method for manipulating the information received by pressing the bracelet is different. These different devices have different mechanisms for attaching the wristbands to the monitoring device. Such mounting devices may be screws, bayonet type plugs or male luer type fittings that fit, for example, at one end of piping extending from the basic processing unit. This required the preparation of armbands that were particularly suitable for the particular surveillance device. In other words, the interconnectivity of the cuffs was severely limited.

[0004]

SUMMARY OF THE INVENTION A patient can be connected to a particular type of monitoring device and removed from the device for transport or device replacement and reattachable to a different type of device without removing the wrist straps. Thus, it has been found desirable to have a replaceable fitting on the blood pressure measurement wrist strap. To make this possible, a fitting is provided at one end of the pipe extending from the armband. The fitting is suitable for receiving tubing associated with a pneumatic device and has a first end having tubing connection means formed thereon and an outer surface forming a male thread and a female cone. A second end having an inner surface that Advantageously, the inner surface may be formed with a female luer fitting for receiving a male luer fitting from the monitoring device. Alternatively, the second end may also include a bayonet fitting which includes an inner cylindrical surface which is clamped in its place by an outer surface having a male thread formed therein.

The tubing connecting means provided at the first end of the joint may be a tapered outer surface or a barbed shape for holding the tubing thereto. In addition, the surface is a simple cylinder if there is sufficient sliding joint between the joint and the pipe to maintain the connection under the pressure that would be applied to the armband via the pipe. It can be a letter.

In addition, a large diameter shoulder can be provided intermediate the first and second ends to provide a gripping portion at the joint. This gripping portion may be provided to assist in threading the connection at the second end or inserting the luer joint into the second end of the joint.

With this arrangement, the joint part forms a blood pressure measuring arm band device for use in non-invasive blood pressure measurement such that the device includes an air bag for inflating in the arm band. Become. Piping is the first due to the expansion and contraction of the air bag
Communicate with the bladder at the end of. The joint includes a threaded mounting means on the outer surface of the second end and a second mounting means for selective mounting on the blood pressure measuring device.

The threaded mounting means are preferably male threads and may form internal cylindrical surfaces for receiving and mounting bayonet joints in connection with the male threads. Alternatively, the second mounting means may form a female luer joint that receives a male luer joint at the end of the pipe or may be an internal conical surface extending from the body of the monitor. The luer joint may be separated from the end of the joint to provide the necessary spacing on the cylindrical surface of the bayonet joint.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now to FIG. 1, the connector of the present invention will be described and thereafter the operation and use of the connector will be described in connection with FIG. The connector 1 has a pipe side end 2 having an outer surface 3. A barb 4 is formed on the outer surface 3 to hold the pipe on the outside. The barb 4 is made by a known method so that the maximum outer diameter is slightly larger than the inner diameter of the pipe. Since the pipe side end 2 of the connector is inserted into the pipe, the pipe is deformed radially outward in order to perform slidable joining on the barb 4.

The device end 5 has a surface 6 forming a series of male threads 7. The male screw 7 has a shape suitable for receiving the female screw of the plug from the blood pressure monitor.
The blood pressure monitor may be of any known type and should have a female thread of the same pitch and depth as the male thread of the fitting. The male thread of the connector is selected to provide a well-sealed seal with the air tube of the device to operatively connect the connector to the device and thereby to the armband. It should be.

Referring to FIG. 2, the internal structure of the connector is well understood. The connector has an internal cylindrical surface 8 formed at its distal end. The cylindrical surface is sized to receive the bayonet portion of the threaded closure described above. The bayonet portion is adapted to be received within the fitting, while the female threaded portion of the device connection is screwed onto the exterior surface of the fitting. That is, the combination of the screw mount and the bayonet receiver within the inner cylindrical surface 8 provides the necessary sealing for the device.

The internal structure further forms an internal conical portion of a female luer fitting 9 suitable for receiving a luer fitting on the piping of the device. This allows the female luer joint and the threaded male connector of the fitting to be used in different ways. That is,
If the device that connects to the armband has a male luer joint, it is received inside the connector and sealed to the female luer joint 9. However, if the device has a female threaded mounting mechanism, the bayonet of the mounting mechanism is received in contact with the inner cylindrical surface 8 so that the female threaded portion of the mounting mechanism is screwed onto the outer surface of the fitting. Accepted by.

A passage 10 is formed in the remainder of the fitting to provide communication from one end of the fitting to the other end of the fitting. The dimensions of the internal shapes of the passage and the device end of the fitting are suitable for allowing sufficient air to flow through the fitting so as not to affect the operation of the monitoring device. That is, the passages must be sized and shaped so that they do not place a significant load on the passage of air therethrough during either part of the expansion or contraction cycle.

The connector is made of working metal or plastic such as brass or polycarbonate. Conveniently, the fitting may be by injection molding of plastic,
It uses a plastic that is rigid once it is formed. A typical joint is about 0.87 in length
It is about 5 inches and the inner passage diameter is about 0.125 inches.
The threaded ends are formed with an outer diameter of 0.390 inches and a thread pitch of 24 pitches per inch.

Referring to FIG. 3, a method of using the device is illustrated. The arm band 11 is provided with a pipe 12 extending from the arm band and communicating with an air bag in the arm band. The connector 1 is received by butt fitting at one end of the pipe extending from the armband. The second end of the fitting receives a threaded female connector 13 which extends from the tubing associated with and in communication with the monitoring device. The tubing is shown as having a free end 14 for connection to any known insufflation monitor. Without removing the armband 11 from the patient, the connector 1 can be detached from the monitor by unscrewing the connection to the tubing extending to the patient monitor. This allows the patient to be transported or simply connected to another device. When transporting a patient, it is possible to use a mobile monitoring device or another monitoring device at the end of the transport. The mobile monitoring device or the second monitoring device need not have the same type of threaded joint as in FIG. 3, but may have a luer joint for attachment to the wristband. That is, it is possible to connect the armband to different types of tubing without removing the armband from the patient.

The shoulder 1 is provided so that the connector 1 can be easily gripped.
5 is formed so as to have a grip portion 16. The gripping surface may be made with non-slip notches to provide a good grip. The wide diameter of the shoulder 15 increases the leverage of the grip and provides a stop against which the tubing 12 abuts.

The invention will be described with reference to the appended claims. It is to be understood that the description provided herein is for purposes of illustration only and the claims of the present invention should be determined with reference to the appended claims.

Next, an embodiment of the present invention will be described. (1) The connector according to claim 1, wherein the inner surface forms a female luer joint. (2) The connector of claim 1, wherein the second end further comprises an internal cylindrical surface at a distal end of the second end. (3) The connector according to claim 1, wherein the pipe connecting means has an outer cylindrical surface. (4) The connector according to claim 1, wherein the connecting means has a conical outer surface. (5) The connector according to claim 1, wherein the pipe joining means includes a barbed shape for holding the pipe. (6) The connector according to claim 1, further comprising a shoulder portion between the first and second end portions. (7) The connector according to item (6) of the above embodiment, wherein the shoulder portion includes an external gripping surface. (8) The improvement according to claim 2, wherein the screw-type mounting means is a male screw formed at one end of the connector farther from the arm band. (9) The improvement according to claim 2, wherein the second mounting means has an inner conical surface. (10) The improvement according to claim 2, wherein the second mounting means forms a female luer joint. (11) The luer joint is spaced from the end of the connector and the internal cylindrical surface is for receiving the end and a complementary shape on the monitoring device mounting device. The improvement according to item (10) of the above-mentioned embodiment, which is formed in the middle of the portion.

[Brief description of drawings]

1 is a perspective view of a connector for piping according to the present invention. FIG.

FIG. 2 is a longitudinal sectional view of the connector of FIG.

FIG. 3 is a perspective view of a combination of armband piping and a connector.

[Explanation of Codes] 1 Connector 2 End on Pipe Side 3 External Surface 4 Return 5 Device End 6 Surface 7 Male Screw 8 Internal Cylindrical Surface 9 Female Luer Joint 10 Internal Passage 11 Armband 12 Piping 13 Screw-in Type Female plug 15 shoulder

Claims (2)

[Claims] 1. A second end having a) a first end forming a pipe connection means, b) i) an outer surface forming a male thread, and ii) an inner surface forming a female conical surface. A fitting for receiving a tube associated with a pneumatic device, characterized in that it comprises an end. 2. A blood pressure measuring armband for use with a non-invasive blood pressure monitoring device, wherein the device includes an air bladder for inflating, and tubing includes the air bladder for inflating and deflating the air bladder. An arm girdle adapted to communicate with a first end of the tube, comprising: a) a second end at the second end of the tube for threaded mounting and a second connection for selective connection to a blood pressure measuring device. An improvement characterized in that it includes a connector including mounting means.