RU2632762C2 - Method for automatic parenteral administration of pharmaceuticals and blood sampling - Google Patents

Abstract

FIELD: pharmacology.

SUBSTANCE: device for automatic administration of pharmaceuticals and blood sampling is mounted on the arm, or the hand is inserted therein. By means of moving the device mounting plate and rotating the lower and the upper device discs, the device is oriented by two axes. A suitable vein or a blood vessel for carrying out the injection is determined. The device is oriented so that the location for a future injection is in the middle of the vessel or the vein. At the time of finding a suitable vessel or vein, cassettes with needles and a cartridge are fixed above a suitable area. Cryo-anestheticis is fed via the channel and sprayed onto the skin surface before carrying out the injection. The cassette needles are introduced into the lumen of the vessel or the vein, and medicinal product supplying or blood sampling is performed.

EFFECT: method allows to achieve the painless procedure of the pharmaceutical administration, to provide the possibility of pre-anesthesia, to increase the accuracy of the needle entering the vein lumen.

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Description

The present invention is intended for painless minimally invasive parenteral administration of pharmaceuticals and blood sampling. The invention can be used in medical institutions, as well as for personal use for these purposes.

The prior art several analogues of the claimed invention.

A device is known that allows for the implementation of an injection method that includes a needle designed to access the patient's venous-vascular system, a sensor, a processor, and an output device. The sensor is located at the distal end of the needle and is designed to provide real-time information without an image based on ultrasound information about the patient's venous-vascular system. The processor is designed to receive and process information in real time without an ultrasound image based on information from the patient’s venous-vascular system provided by the sensor about the position relative to the position of the distal end of the needle in the patient’s venous-vascular system (see US 20070016069 A1).

Under the visual supervision of a medical professional, the perforated perforation is performed using the above device, after which the direction of blood flow is detected using light and sound indications on an external device. Moreover, as a result of the fact that the ultrasound beam has the same orientation as the needle, the so-called "needle yaw" occurs. After finding the vein, it is punctured. Then the sensor is removed from the lumen of the needle and further manipulations are performed.

Also known is the VeinViewer device, a subsidiary of Christie (see US 5969754), which, using different absorption between the skin and veins due to the presence of hemoglobin in the latter, uses infrared technology to detect and reproduce veins on an illuminated projection directly to the test site, facilitating the work of specialists. Initially, this technology was used to verify the so-called "venous passport" and its inherent complete authenticity of a person. This device can only be used by qualified specialists and doctors, is intended for use in hospitals and is expensive equipment.

A device and method of injection using infrared light and the detection of gradation in its various absorption and dispersion between the skin and hemoglobin (see RU 2467770 C1) are known. This development is the closest analogue (PROTOTYPE).

Common disadvantages of all known analogues are:

- the impossibility of precise guidance of the needle for insertion into the vein due to the presence of the "human" factor, since the needle is inserted by the operator;

- the need for clear positioning of the laser aperture at an angle of 90 degrees to the vein so that the image does not shift to the side, which will lead to the display of a “virtual” vein that does not coincide in projection with the actual vein;

- the size of the “virtual” vein may vary, because if the laser aperture is not 18 cm from the skin surface, then a “projection game” occurs;

- lack of preliminary anesthesia.

The task of the claimed invention is aimed at eliminating the above disadvantages.

The technical result achieved by using the claimed method is the painlessness of the procedure for administering a pharmaceutical preparation and low invasiveness of the procedure, the appearance of the possibility of preliminary anesthesia, the increase in the accuracy of getting into the lumen of the vein (over 99.9%), minimization of the “human factor”, the appearance of the ability to independently produce injection and enhancement automation process.

The technical result is achieved through the use of the following set of essential features: a method for automatic parenteral administration of pharmaceuticals and blood sampling, which consists in the fact that the device for automatic parenteral administration of pharmaceuticals and blood sampling is installed on the arm or the hand is inserted inside the device, if the device is stationary include the playback mode of the scanned portion of the hand, by moving the mounting plate of the device the two and rotations of the lower and upper disks of the device orient the device in two axes, look for a suitable vein or blood vessel for injection, orient the device so that the place for future injection is located in the center of the vessel or vein, at the moment of finding a suitable vessel or vein fix the cassettes with needles and a cartridge over a suitable area, feed a cryo-anesthetic in the device body and spray it onto the skin surface before injection cassette needles are inserted into the lumen of a vessel or vein and a drug is delivered or blood is taken.

The claimed method is illustrated by drawings, where FIG. 1 - upper disk, FIG. 2 - lower disk, FIG. 3 - mounting strip, FIG. 4 - mounting frame, FIG. 5 - pushing sleeve, FIG. 6 - cover of the upper disk, FIG. 7 - cassette, FIG. 8 - cartridge.

Explanation of the drawings:

FIG. 1. The upper disk.

1. Branch pipe

2. Disk enclosure

3. Stud mounting

4. Gear teeth

5. Chamfer

6. Camera aperture

7. Technological deepening

FIG. 2. The lower disk

8. Aperture hole for the camera

9. Technological hole for fasteners

10. Chamfer

11. Cone-shaped chamfer

FIG. 3. Mounting plate

12. Recess for servo

13. Chamfer on the body of the plank

14. The pin

15. Guide hole

16. Boundary

FIG. 4. Mounting frame

17. Frame body

18. Mounting plates

19. The semicircular neckline

20. Servo mounting housing

21. Guide hole

FIG. 5. Push sleeve

22. The screw of Archimedes

23. Gear hub

24. Bounding ring

FIG. 6. Cover on the upper disc

25. Cover housing

26. Chamfer cover

27. Display hole

FIG. 7. Cassette

28. Longitudinal chamfer

29. Safety latch 1

29a. Safety latch 2

30. Recess under the bracket

31. Cassette handle

32. Needle

FIG. 8. Cartridge

33. Technological rib

34. Oblique cut

35. Shank

36. Longitudinal chamfer

37. Recess under the safety latch

38. Cartridge housing

FIG. 9. The device assembly

39. The upper disk

40. Lower disk

41. Mounting plate

42. Mounting frame

43. Push sleeve

44. Cover on the upper disc

45. Cassette

46. Cartridge

The claimed method is carried out through the use of a device for automatic parenteral administration of pharmaceuticals and blood sampling. The device includes a cuff, a mounting frame located in the technological cutout of the cuff, and containing a mounting plate, at least one engine, and at least one pushing sleeve that interacts with at least one engine and mounting plate. The mounting plate is equipped with parallel upper and lower disks, a servo motor, a cover of the upper disk and a cassette with needles and a cartridge. The upper disk contains a scanning device, a control module, a pipe with a through hole in the form of a channel, truncated from the side of the patient’s hand, and containing a mounting protrusion on the outside for fixing and fixing the vial with anesthetic. The upper disk is equipped with teeth made with the possibility of engagement with a servo motor. The pipe channel is made with the possibility of placing a cartridge with needles and a cartridge in it, on the inner walls of which are located fixing recesses and guides that are engaged with the teeth of the cartridge.

The cuff of the device can be made either in the form of a lining for measuring blood pressure, or in the form of a stationary cuff. The cartridge is made in the form of a profile with a beveled end provided with a contact edge of a polymeric material that hermetically closes the hole at the point of contact with the patient's skin. An anesthetic bottle is a container with a membrane at the end. The scanning device comprises a video camera and an aperture for it. The pushing sleeve contains an Archimedes screw, a gear on one end and a restrictive ring on the other.

Additionally, the device can be equipped with a speaker and a display to display the image from the camera of the scanning device and provide audio signals. Also, the claimed device may include an integrated module for wireless transmission of information for transmitting images from the camera of the scanning device to an external monitor / display / screen using a wireless protocol.

A cassette with needles, a cartridge for a cassette, a tube of a bottle with anesthetic are disposable.

The design of the claimed device provides for the placement in the upper disk of an integrated scanning device that determines the location of the vein, determining the thickness of the vein and its depth. Information from the scanning device is supplied to the control module, which, on the basis of the received information, gives commands in the form of control signals to the motor, servomotor and to the nozzle with the cartridge.

The cuff may contain additional equipment for conducting studies on blood parameters and physiological studies. The case of additional equipment with the equipment contained therein is not the subject of the present invention.

The cuff is a strip of tissue wrapped around the patient's arm and fixed on it. Fixation can be carried out in various ways. In particular, fixation can be carried out by pumping air into a flat soft reservoir located inside the cuff. In this case, the pumping is limited by air pressure (not more than 60 mm Hg). The ends of the cuff strip can be fastened, for example, using Velcro.

The cuff provides a technological cutout to accommodate the mounting frame of the claimed device.

The fastening frame is a rectangular design, where the parallel mounting plates of the inflatable part of the cuff are interconnected by parallel enclosing plates. The guard plates cover the push sleeve or bushings.

The upper disk (Fig. 1/1) consists of a housing (2), inside of which a pipe (1) is located at an angle, which serves as a housing for the injection mechanism. In the lower part of the housing there are circumferential teeth of engagement (4), which engage with the teeth of the gears of the servo drive located in the recess (12) of the mounting plate (Fig. 1/3). On the case there is a chamfer (5), based on the support rollers located on the pins (14) of the mounting plate (Fig. 1/3). In the upper disk case there is a technological recess (7) under the video camera, opening in the lower part with an aperture (6).

The lower disk (Fig. 1/2) has technological holes for fasteners (9), holes for the aperture (8), a cone-shaped chamfer (11) for the cartridge (Fig. 1/8). Around the bottom disk has a chamfer (10) adjacent to the support rollers located on the pins (14) of the mounting plate (Fig. 1/3). The lower disk is fixed to the upper disk by screws. Chamfers (5 and 10) surround the support rollers, whereby the disks rotate along the axis and do not fall out of the mounting plate.

The mounting plate (Fig. 1/3) has guide holes (15) in its housing for the pushing sleeve (Fig. 1/5).

The fastening frame (Fig. 1/4) has a housing (17), at the ends of which there are mounting plates (18) to the cuff. There is also a guide hole (21) for the pushing sleeve (Fig. 1/5). The mounting frame has a mounting housing (20) for the servo drive. This servo drive transmits torque to the pushing sleeve (Fig. 1/5) through the gear (23).

The pushing sleeve (Fig. 1/5) is located in the guide holes (15) of the mounting plate (Fig. 1/3) and has a chamfer with the geometry of the “Archimedes screw” along its length.

The cover (Fig. 1/6) has a hole for the display (27), a chamfer (26) located at an angle and adjacent to the pipe (1) of the upper disk (Fig. 1/1).

The cassette (Fig. 1/7) is a tube on which there is a longitudinal chamfer (28) congruent to the longitudinal chamfer (36) located inside the cartridge (Fig. 1/8).

The cartridge has an oblique cut in the end part, in which the needle (s) are located along the cartridge axis. On the surface of the longitudinal bevel (28) there are safety latches (29 and 29a), which engage with the recess (37) inside the cartridge (Fig. 1/8).

The cartridge (Fig. 1/8) has an oblique cut (34) that matches the oblique cut on the cartridge (Fig. 1/7). Along the body of the cartridge there are technological ribs (33), which serve as guides for the passage of the cartridge and its orientation so that the oblique cut (34) is parallel to the skin surface.

The implementation of the method of automatic parenteral administration of pharmaceuticals and blood sampling

The device is mounted on the hand (or the hand is inserted inside the device if it is stationary). The playback mode of the scanned section is activated. At this moment, the mounting plate makes longitudinal movements along the mounting frame, and the movable components (upper and lower disks) produce rotational movements. Thus, the device is oriented along two axes, and the direction of insertion of the cassette needles along the direction axis of the desired vessel or vein. A suitable vein is being sought for injection. In this case, the device is oriented in such a way that the place for future injection is in the center of the vessel. At the time of finding a suitable vessel, which is displayed, the device is fixed above the required area. At the same time, a cartridge with a cartridge inserted into it is already installed in the pipe (1) of the assembled device. Before the injection, a cryo-anesthetic is fed through the channel in the device body and it (anesthetic) is sprayed onto the skin surface. The injection mechanism feeds the cartridge, the needles are inserted into the lumen of the vessel. A drug is given or blood is taken.

Thus, a painless procedure for administering a pharmaceutical preparation and low invasiveness of the procedure are achieved.

Increasing the automation of the process is carried out by minimizing the "human factor".

According to the author, the claimed method meets all the criteria for patentability of an invention, namely: novelty, inventive step and industrial applicability.

Claims (1)

The method of automatic parenteral administration of pharmaceuticals and blood sampling, which consists in the fact that the device for automatic parenteral administration of pharmaceuticals and blood sampling is installed on the hand or the hand is inserted inside the device, if the device is stationary, the playback mode of the scanned portion of the hand is switched on by moving the mounting straps of the device and rotation of the lower and upper disks of the device orient the device along two axes, they look for a suitable vein or blood vessel for injection, orient the device so that the place for future injection is in the center of the vessel or vein, at the moment of finding a suitable vessel or vein, the cassettes with needles and cartridge are fixed over a suitable area, fed through the cryo channel anesthetic in the device’s body and spray it onto the skin surface before injection, insert the cartridge’s needles into the lumen of the vessel or vein and deliver the drug or take moat.

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