CN211863362U

CN211863362U - Temperature-sensing nasal feeding injector

Info

Publication number: CN211863362U
Application number: CN202020063809.XU
Authority: CN
Inventors: 陈飞亚; 刘丹; 邓瑛瑛
Original assignee: Southern Hospital Southern Medical University
Current assignee: Southern Hospital Southern Medical University
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-11-06
Anticipated expiration: 2030-01-13

Abstract

The utility model discloses a temperature-sensing nasal feeding injector, which comprises an injection tube, a connecting rod and a piston, wherein the injection tube comprises an inner tube body and an outer tube body sleeved outside the inner tube body, the injection tube is of a double-layer hollow structure, and the outer wall of the middle part of the outer tube body is symmetrically provided with an inward-concave arc holding part along the central axis; the one end of connecting rod is connected with the handle, the other end of connecting rod deepen the interior barrel of injection tube inside with the piston is connected, the outer surface cladding of piston has the temperature sensing discoloration layer, the temperature sensing discoloration layer has set gradually first discoloration layer, second discoloration layer and third discoloration layer from inside to outside. The utility model discloses simple structure, convenient operation, medical personnel can know intraductal fluid food's temperature through the colour that temperature sensing discoloration layer shows, avoid intraductal food high temperature or cross low to cause the injury to patient's health.

Description

Temperature-sensing nasal feeding injector

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to temperature sensing nasal feeding syringe.

Background

Nasogastric feeding (Nasogastric) is a method of inserting a catheter into the stomach from the nasal cavity and infusing liquid food, water and medicine from the tube, and is generally used for patients who are unconscious or unable to feed themselves.

Disclosed in patent document CN 110464654 a is an electronic nasal feeding injector, including the grip handle, be equipped with a protection section of thick bamboo and a fixed cylinder on the grip handle, it has powerful motor to bond closely on the inner wall of a protection section of thick bamboo, the output shaft end of powerful motor is equipped with ball screw, the arc wall has been seted up on the section of thick bamboo wall of fixed cylinder, the cross-section semicircular in shape of arc wall, set up two mutual symmetries on the cell wall of arc wall and the logical groove that is linked together with the external world, be equipped with spacing subassembly in the fixed cylinder, spacing subassembly includes ARC fixed plate, still be equipped with in the fixed cylinder and annotate material mechanism, it includes the connecting rod to annotat. The invention has simple and rapid operation, improves the working efficiency, saves the treatment time and relieves the pain of patients. However, the invention has a complex structure and cannot judge the temperature of the food to be poured.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a temperature sensing nasal feeding syringe, medical personnel can know intraductal fluid food's temperature through the colour that the temperature sensing discoloration layer of piston surface shows, avoid intraductal food high temperature or cross low to cause the injury to patient's health to simple structure, convenient operation.

The utility model provides a technical problem adopt following technical scheme to realize:

a temperature-sensing nasal feeding injector comprises an injection tube, a connecting rod and a piston, wherein the injection tube comprises an inner tube body and an outer tube body sleeved outside the inner tube body, the injection tube is of a double-layer hollow structure, and the outer wall of the middle part of the outer tube body is symmetrically provided with inwards-concave arc holding parts along the central axis;

one end of the connecting rod is connected with a handle, the other end of the connecting rod extends into the inner cylinder of the injection cylinder and is connected with the piston, and the outer surface of the piston is coated with a temperature-sensitive color-changing layer;

the front end of the injection tube is communicated with a nipple, the front end of the nipple is detachably connected with a filter sleeve, a filter screen is embedded in the filter sleeve, and the filter sleeve is communicated with the nipple; the filter sleeve front end can be dismantled and be connected with the protective cap, filter sleeve lower surface and protective sheath lower surface equally divide and be provided with the connecting band between the outer barrel front end lateral wall respectively with the injection tube, the both ends of connecting band respectively with outer barrel front end lateral wall of syringe and filter sleeve lower surface, outer barrel front end lateral wall of syringe and protective sheath lower surface body coupling

The temperature-sensitive color-changing layer is sequentially provided with a first color-changing layer, a second color-changing layer and a third color-changing layer from inside to outside, and reversible temperature-sensitive color-changing pigments in different temperature-sensitive color-changing intervals are respectively filled in the first color-changing layer, the second color-changing layer and the third color-changing layer; the temperature sensing interval of the first color changing layer is 29-34 ℃, the temperature sensing interval of the second color changing layer is 35-40 ℃, the temperature sensing interval of the third color changing layer is 41-46 ℃, and the reversible temperature sensing color changing pigment filled in the three color changing layers can be selected from different colors according to the needs.

Wherein, be provided with a plurality of antislip strips on the arc portion of holding.

Wherein, the outer surface of the temperature-sensitive discoloration layer is coated with a protective film.

Wherein the connecting band is made of an elastic material.

And a graduated scale is axially arranged on the outer surface of the inner cylinder body or the inner surface of the outer cylinder body.

Wherein, the injection cylinder is made of transparent material.

The adapter is further arranged between the filter sleeve and the protective cap and comprises a plurality of integrally connected connecting sleeves. The inner diameters of the connecting sleeves gradually increase from left to right; the connecting sleeves, the filtering sleeves and the protective caps are coaxially arranged; the adapter is connected with the side wall of the front end of the outer barrel through a connecting belt.

The microencapsulated reversible thermochromic substance is called reversible thermochromic pigment (commonly known as temperature-sensitive pigment, temperature-sensitive powder or temperature-sensitive powder), and the particles of the pigment are spherical and have an average diameter of 2-7 microns. The inside of the material is a temperature-sensitive color-changing pigment, the color-changing substance is prepared by an electron transfer type organic compound system, and the electron transfer type organic compound is an organic color-emitting system with a special chemical structure. The molecular structure of the organic substance is changed by electron transfer at a specific temperature, thereby realizing color conversion. The color-changing substance not only has bright color, but also can realize color change from colored state to colorless state, which is not possessed by heavy metal double salt complex type and liquid crystal type reversible temperature-sensitive color-changing substances.

The color of the temperature sensing color change is various and can be selected according to the requirement; the temperature-sensitive color change can change color repeatedly with the temperature rise and fall, and the color change form is colorless at the temperature of more than 31 ℃ and red at the temperature of less than 31 ℃ by taking red at the temperature of 31 ℃ as an example. The thermochromic material does not contain substances harmful to human bodies, and meets the specification standards of food packaging boxes and safety toys.

The utility model discloses following beneficial effect has:

1. the utility model discloses well piston is covered with the temperature sensing discoloration layer outward, the temperature sensing discoloration layer has set gradually first discoloration layer, second discoloration layer and third discoloration layer from inside to outside, divide equally among the three discoloration layer and fill respectively with the reversible temperature sensing discoloration pigment of different temperature sensing discoloration intervals, the temperature interval of first discoloration layer to third discoloration layer is 29-34 ℃, 35-40 ℃, 41-46 ℃ respectively, in the nasal feeding perfusion process, the optimum temperature of water or liquid food is 35-40 ℃, medical personnel or family members can judge the temperature of the perfused food is suitable or not through the colour of discoloration layer, avoid perfused food high temperature or low excessively to cause the injury to patient's health, simultaneously, temperature sensing discoloration layer surface cladding has the protection film, avoided discoloration layer and perfused food direct contact, guaranteed the color change effect of temperature sensing discoloration layer, the service life of the syringe is prolonged.

2. The injection cylinder of the utility model comprises an outer cylinder body and an inner cylinder body, and is a hollow double-layer structure, the double-layer injection cylinder can play a role in heat preservation of food in the injection cylinder, and the speed of reducing the temperature of the food is slowed down; the outer barrel middle part outer wall is provided with inside sunken arc along the axis symmetry and holds the portion of taking, and the arc is held and is provided with a plurality of antislip strips in the portion of taking, and when nasal feeding fills, the cooperation of holding portion and handle is held to the arc can prevent that the syringe from following the roll-off in medical personnel's hand for the process of injecting is more smooth.

3. The utility model discloses in nipple front end can dismantle filter sleeve, adapter and protective cap in proper order and connect to protective cap, adapter and filter sleeve equally divide and connect through connecting band and injection tube respectively, the filter sleeve can filter the large granule in the perfusion food, avoids the perfusion pipeline to block up, increases patient's misery, and helps the patient to the better absorption of food; the adapter comprises a plurality of integrally connected connecting sleeves, the inner diameter of each connecting sleeve is gradually increased from left to right, so that the connecting sleeves can be connected with stomach tubes or intestinal tubes of different types, the utilization rate of the injector is improved, and the waste of medical instruments is reduced; meanwhile, the protective sleeve can prevent dust from entering the injector and the filter sleeve and keep the interior clean; the setting of connecting band can be in the same place filter sleeve, adapter sleeve and protective sheath and syringe connection, prevents to lose in the use.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged schematic structural view of the thermochromic layer at a in fig. 1.

Wherein: 1. an injection tube; 101. an inner cylinder; 102. an outer cylinder; 1021. an arc holding part; 10211. anti-slip strips; 2. a connecting rod; 3. a piston; 4. a handle; 5. a temperature-sensitive color-changing layer; 501. a first color changing layer; 502. a second color changing layer; 503. a third color changing layer; 504. a reversible thermochromic pigment; 505. a protective film; 6. a nipple; 7. a filter sleeve; 701. filtering with a screen; 8. a protective cap; 9. a connecting belt; 10. an adapter; 11. a connecting sleeve.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Referring to fig. 1-2, a temperature-sensing nasal feeding injector comprises an injection tube 1, a connecting rod 2 and a piston 3, wherein the injection tube 1 comprises an inner cylinder 101 and an outer cylinder 102 sleeved outside the inner cylinder 101, the injection tube 1 is a double-layer hollow structure, an inwardly-recessed arc-shaped holding part 1021 is symmetrically arranged on the outer wall of the middle part of the outer cylinder 102 along a central axis, and a plurality of anti-slip strips 10211 are arranged on the arc-shaped holding part 1021; and a graduated scale is axially arranged on the outer surface of the inner cylinder body 101 or the inner surface of the outer cylinder body 102.

One end of the connecting rod 2 is connected with a handle 4, the other end of the connecting rod 2 extends into the inner cylinder 101 of the injection cylinder 1 and is connected with the piston 3, the outer surface of the piston 3 is coated with a temperature-sensitive color-changing layer 5, the temperature-sensitive color-changing layer 5 is sequentially provided with a first color-changing layer 501, a second color-changing layer 502 and a third color-changing layer 503 from inside to outside, and reversible temperature-sensitive color-changing pigments 504 with different temperature-sensitive color-changing intervals are respectively filled in the first color-changing layer 501, the second color-changing layer 502 and the third color-changing layer 503; the outer surface of the thermochromic layer 5 is covered with a protective film 505.

The front end of the injection tube 1 is communicated with a nipple 6, the front end of the nipple 6 is detachably connected with a filter sleeve 7, a filter screen 701 is embedded in the filter sleeve 7, and the filter sleeve 7 is communicated with the nipple 6; the filter sleeve 7 front end can be dismantled and be connected with the protective cap 8, filter sleeve 7 lower surface and protective cap 8 lower surface are equallyd divide and are provided with connecting band 9 between the outer barrel 102 front end lateral wall of respectively with injection tube 1, the both ends of connecting band 9 respectively with the outer barrel 102 front end lateral wall of injection tube 1 and filter sleeve 7 lower surface, the outer barrel 102 front end lateral wall of injection tube 1 and protective cap 8 lower surface body coupling, connecting band 9 is made by elastic material.

The temperature sensing interval of the first color changing layer 501 is 29-34 ℃, and the temperature sensing interval of the second color changing layer 502 is 35-40 ℃; the temperature sensing color change interval of the third color change layer 503 is 41-46 ℃. When the temperature of the substance in the injection tube 1 is 29-34 ℃, the substance is blue, and when the temperature is higher or lower than the interval, the substance is colorless; when the temperature of the substance in the injection tube 1 is 35-40 ℃, the substance is red, and the substance is colorless when the temperature is higher than or lower than the interval; when the temperature of the substance in the injection tube 1 is 41-46 ℃, the substance is green, and the substance is colorless when the temperature exceeds or is lower than the interval.

Still be provided with adapter 10 between filter sleeve 7 and the protective cap 8, adapter 10 includes the adapter sleeve 11 that a plurality of integral types are connected. The inner diameters of the connecting sleeves 11 gradually increase from left to right; the connecting sleeves 11, the filter sleeves 7 and the protective caps 8 are coaxially arranged; the adapter 10 is connected with the side wall of the front end of the outer cylinder 102 through a connecting belt 9.

The utility model discloses the theory of operation as follows:

when the temperature-sensing nasal feeding injector works, the protective cap 8, the adapter 10 and the filter sleeve 7 in the temperature-sensing nasal feeding injector are taken down, one hand holds the arc-shaped holding part 1021 in the middle of the injection tube 1, the other hand holds the handle 4, liquid food or warm water prepared in advance is sucked into the injector, then the color of the temperature-sensing color-changing layer 5 on the piston 3 is observed, and when the color is displayed to be red, the temperature of the food in the tube is proper; when the color is green, the temperature of the food in the tube is too high, and the next operation can be carried out when the temperature of the food in the tube is lowered to the temperature-sensitive color-changing layer 5; when displayed as blue, the food in the tube should be heated or the food at a suitable temperature should be re-ingested.

When the temperature of temperature sensing discoloration layer 5 shows for red, be connected filter sleeve 7 with the syringe, patient's stomach tube or intestines tube are connected through the adapter 10 of this syringe front end, adapter 10 includes the internal diameter that a plurality of integral types are connected from a left side to the adapter sleeve 11 that the right side increases gradually, can realize being connected with the stomach tube of different models or intestines tube, then be connected with the adapter 10 and the filter sleeve 7 of patient's stomach tube or intestines tube, refilter sleeve 7 is connected with the syringe, large granule in the liquid food can be got rid of to filter screen 701 in the filter sleeve 7, prevent that the pipeline from blockking up and helping the patient to absorb, hold the cooperation of taking portion 1021 and handle 4 through the arc at last and fill the operation.

The above only is the detailed implementation manner of the present invention, not limiting the patent scope of the present invention, all the equivalent structure changes made in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A temperature-sensing nasal feeding injector is characterized in that: the injection tube (1) comprises an inner tube body (101) and an outer tube body (102) sleeved outside the inner tube body (101), the injection tube (1) is of a double-layer hollow structure, and arc holding parts (1021) which are inwards concave are symmetrically arranged on the outer wall of the middle part of the outer tube body (102) along the central axis;

one end of the connecting rod (2) is connected with a handle (4), the other end of the connecting rod (2) extends into the inner cylinder (101) of the injection cylinder (1) and is connected with the piston (3), and the outer surface of the piston (3) is coated with a temperature-sensitive color-changing layer (5);

the front end of the injection tube (1) is communicated with a nipple (6), the front end of the nipple (6) is detachably connected with a filter sleeve (7), a filter screen (701) is embedded in the filter sleeve (7), and the filter sleeve (7) is communicated with the nipple (6); the front end of the filter sleeve (7) is detachably connected with a protective cap (8), a connecting belt (9) is arranged between the lower surface of the filter sleeve (7) and the lower surface of the protective cap (8) and the side wall of the front end of the outer cylinder body (102) of the injection cylinder (1), and two ends of the connecting belt (9) are respectively connected with the side wall of the front end of the outer cylinder body (102) of the injection cylinder (1), the lower surface of the filter sleeve (7), the side wall of the front end of the outer cylinder body (102) of the injection cylinder (1) and the lower surface of the protective cap (;

the temperature-sensitive color-changing layer (5) is sequentially provided with a first color-changing layer (501), a second color-changing layer (502) and a third color-changing layer (503) from inside to outside, and reversible temperature-sensitive color-changing pigments (504) with different temperature-sensitive color-changing intervals are respectively filled in the first color-changing layer (501), the second color-changing layer (502) and the third color-changing layer (503); the temperature sensing interval of the first color changing layer (501) is 29-34 ℃, the temperature sensing interval of the second color changing layer (502) is 35-40 ℃, and the temperature sensing interval of the third color changing layer (503) is 41-46 ℃.

2. The temperature-sensitive nasal feed syringe of claim 1, wherein: the outer surface of the temperature-sensitive color-changing layer (5) is coated with a protective film (505).

3. The temperature-sensitive nasal feed syringe of claim 1, wherein: the arc holding part (1021) is provided with a plurality of anti-slip strips (10211).

4. The temperature-sensitive nasal feed syringe of claim 1, wherein: the connecting belt (9) is made of elastic materials.

5. The temperature-sensitive nasal feed syringe of claim 1, wherein: and a graduated scale is axially arranged on the outer surface of the inner cylinder body (101) or the inner surface of the outer cylinder body (102).

6. The temperature-sensitive nasal feed syringe of claim 1, wherein: an adapter (10) is further arranged between the filter sleeve (7) and the protective cap (8), and the adapter (10) comprises a plurality of integrally connected connecting sleeves (11); the inner diameters of the connecting sleeves (11) gradually increase from left to right; the connecting sleeves (11), the filtering sleeves (7) and the protective caps (8) are coaxially arranged; the adapter (10) is connected with the side wall of the front end of the outer cylinder (102) through a connecting belt (9).