A nasal gastric tube fixer

Abstract

The present invention belongs to the technical field of gastric tube fixation, and specifically relates to a gastric tube fixator for nasal cavity. The present invention includes an elastic plate, which extends circumferentially around the gastric tube and forms a C-shaped plate, and the middle section of the inner wall of the elastic plate and the outer wall of the gastric tube are connected to each other through a radial connecting column; the fixator also includes a threaded sleeve coaxially fixed at the outer wall of the gastric tube, the tail end of the traction rope is fixed on the elastic plate and there is a spacing between the fixed point and the radial connecting column, and the coaxial thread on the threaded sleeve is matched with a pressure ring, and the pressure ring and the outer wall of the gastric tube form a passage cavity for the traction rope to extend into, and the head end of the traction rope extends into the passage cavity along the axial direction of the gastric tube and forms a fixed fit with the threaded sleeve; in the radial direction of the pressure ring, the thickness of the passage cavity is less than the radial spacing between the tail end of the traction rope and the outer wall of the gastric tube. The present invention has the advantages of flexible and convenient operation, can realize the reliable fixing function relative to the patient's nose, and is conducive to clinical use.

Description

Technical Field

[0001] The invention belongs to the technical field of gastric tube fixation, and particularly relates to a gastric tube fixer for a nasal cavity. Background Art

[0002] When in use, the gastric tube needs to be inserted through the patient's nostrils, through the pharynx and esophagus to reach the stomach. Its purpose is to extract gastric juice, and it can also be used to provide food and nutrition to the patient in the stomach. Indwelling gastric tubes is relatively common in clinical work, and the quality of gastric tube fixation directly affects the patient's gastric tube retention time and the patient's comfort. Traditional gastric tube fixation methods often use special medical tape in an "I" shape or "Y" shape to fix the patient's nose and cheek on the same side. When encountering patients who are prone to sweating or have oily skin, the medical tape is easy to fall off, causing the gastric tube to fall out, which can easily affect the patient's normal treatment. In addition, medical tape directly adheres to the patient's skin, which is also prone to cause skin allergies, thus bringing additional troubles to clinical nursing work. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide a structurally reasonable and practical nasal gastric tube fixer, which has the advantages of flexible and convenient operation, can achieve a reliable fixation function relative to the patient's nose, and is conducive to clinical use.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A stomach tube fixer for the nasal cavity, characterized in that: it includes an elastic plate, which extends circumferentially around the stomach tube and forms a C-shaped plate, and the middle section of the inner wall of the elastic plate and the outer wall of the stomach tube are connected to each other through a radial connecting column; the fixer also includes a threaded sleeve coaxially fixed to the outer wall of the stomach tube, the tail end of the traction rope is fixed on the elastic plate and there is a spacing between the fixed point and the radial connecting column, the coaxial thread on the threaded sleeve is matched with a pressure ring, and a passage cavity for the traction rope to be inserted into is formed between the pressure ring and the outer wall of the stomach tube, and the head end of the traction rope is extended into the passage cavity along the axial direction of the stomach tube and forms a fixed fit with the threaded sleeve; in the radial direction of the pressure ring, the thickness of the passage cavity is smaller than the radial spacing between the tail end of the traction rope and the outer wall of the stomach tube.

[0006] Preferably, the fixing sleeve and the threaded sleeve are coaxially arranged in sequence from the inside to the outside along the radial direction of the gastric tube, and an integrated structure is formed between the fixing sleeve and the threaded sleeve. The fixing sleeve is detachably fixed to the outer wall of the gastric tube by a set screw or a half joint.

[0007] Preferably, the axis of the radial connecting column forms an angle with the axis of the fixing sleeve, and the tip of the angle points in the direction of the threaded sleeve.

[0008] Preferably, the end of the elastic plate adjacent to the threaded sleeve is the front end, the elastic plate is in the shape of a frustum-shaped plate structure with a front aperture larger than a rear aperture, and the tail end of the traction rope is fixed on the inner arc surface of the elastic plate.

[0009] Preferably, a bushing-shaped wear-resistant layer is arranged on the inner wall of the pressure ring.

[0010] Preferably, anti-slip patterns are arranged on the outer wall of the pressure ring to facilitate operation.

[0011] Preferably, the cantilever end of the elastic plate is provided with an inwardly curled arc-shaped inner flange.

[0012] Preferably, a cushion layer is provided on the outer arc surface of the elastic plate and at both cantilever ends.

[0013] The beneficial effects of the present invention are:

[0014] 1) Different from the traditional medical tape pasting structure, the present invention realizes the function of tightening and fixing relative to the patient's nasal cavity from the inside out through the elastic restoring force of the C-shaped elastic plate. During specific operation, by adjusting the axial movement of the pressure ring relative to the threaded sleeve, the compression length of the traction rope by the pressure ring is changed, thereby achieving indirect control of the bending degree of the elastic plate. When the bending degree of the elastic plate is large, the gastric tube can be easily separated from the patient's nasal cavity; and when the pressure ring is adjusted to loosen the traction rope, the bending degree of the elastic plate can gradually decrease under the action of its own elastic restoring force, and the elastic plate located in the patient's nasal cavity gradually has the effect of tightening the patient's nasal cavity.

[0015] Obviously, through the above scheme, on the one hand, the fixation of the gastric tube relative to the patient's nose is no longer affected by the properties of the patient's skin, and the fixation is reliable and stable; on the other hand, the elastic plate can be reset or retracted, that is, the movement of the elastic plate is controllable, and the gastric tube can be removed and fixed on the patient's nasal cavity at any time, and the flexibility of use can be significantly improved.

[0016] In summary, the present invention has the advantages of flexible and convenient operation, can achieve a reliable fixation function relative to the patient's nose, and is conducive to clinical use.

[0017] 2) When the present invention is actually used, the threaded sleeve and the like can be directly integrally formed on the gastric tube, so that a gastric tube with a corresponding structure can be directly manufactured. In order to further improve the scope of application of the present invention, the present invention uniformly integrates the threaded sleeve and the elastic plate with radial connecting columns on the fixed sleeve. During production, only the fixed sleeve with the threaded sleeve and the elastic plate needs to be produced; when in use, the fixed sleeve is fixed on the corresponding existing gastric tube that has been purchased, which has lower production costs, more flexible and changeable operations, and is more conducive to use in the current environment.

[0018] 3) Furthermore, in order to ensure the flexible response effect of the retraction and tightening action of the elastic plate, on the one hand, the radial connecting column is arranged as an oblique rod to improve its force-bearing capacity; on the other hand, the elastic plate is formed into a cone plate structure as a whole, so that once the elastic plate receives the pulling force of the forward and inward traction rope, the elastic plate can quickly achieve the retraction effect, and once the pulling force of the traction rope is eliminated, the elastic plate can also quickly reset under its own elastic force, so that the gastric tube can be reliably tightened and fixed in the patient's nasal cavity.

[0019] 4) Of course, since the elastic plate needs to rely on elastic restoring force to be fixed in the patient's nasal cavity, the arc-shaped inner turn-down edge can effectively prevent the two suspended ends of the elastic plate from damaging the sensitive nasal cavity; at the same time, combined with the soft cushion layer, it can also effectively improve the patient's clinical comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a three-dimensional structure of one embodiment of the present invention;

[0021] Figure 2 for Figure 1 a cross-sectional view of the structure shown;

[0022] Figure 3 It is a structural schematic diagram of another embodiment of the present invention.

[0023] The actual correspondence between the reference numerals and component names of the present invention is as follows:

[0024] a-gastric tube

[0025] 10-elastic plate 11-radial connecting column

[0026] 20-thread sleeve 30-traction rope

[0027] 40-pressure ring 41-anti-slip pattern 50-fixing sleeve DETAILED DESCRIPTION

[0028] For ease of understanding, the specific structure and working mode of the present invention are further described below in conjunction with the accompanying drawings:

[0029] The specific structure of the present invention refers to Figure 1-3 As shown, the main structure includes a threaded sleeve 20, a pressure ring 40, a traction rope 30 and an elastic plate 10 with a radial connecting column 11 arranged in sequence from front to back along the axial direction of the gastric tube a.

[0030] When the present invention is presented as Figure 1-2In the structure shown, the threaded sleeve 20, the pressure ring 40 and the stomach tube a are coaxial with each other, and the threaded sleeve 20 and the stomach tube a form an integrated structure, that is, the threaded sleeve 20 and the stomach tube a are integrally formed at the beginning of the design. The radial connecting column 11 is also fixed to the outer wall of the stomach tube a, so that when the elastic plate 10 is pulled by the traction rope 30, the radial connecting column 11 can act as an anchor point to limit the elastic plate 10 from producing axial overall displacement. Figure 1 As can be seen in the figure, the pressure ring 40 is used as an adjustment ring. On the one hand, it is threadedly engaged with the external thread section at the tail end of the threaded sleeve 20; on the other hand, the traction rope 30 must be as Figure 2 As shown in the figure, the traction rope 30 can only be fixed on the tail end surface of the threaded sleeve 20 after passing through the annular cavity of the pressure ring 40. Since the radial distance from the fixing point of the traction rope 30 and the elastic plate 10 to the outer wall of the stomach tube a is obviously greater than the radial distance from the annular cavity of the pressure ring 40 to the outer wall of the stomach tube a, once Figure 2 When the compression ring 40 shown rotates along the threaded sleeve 20 and produces an axial movement to the right, that is, backward, the traction rope 30 is pressed down, and the elastic plate 10 is then retracted. Once the compression spring rotates along the threaded sleeve 20 and produces a leftward, that is, forward movement along the gastric tube a, the restraint of the traction rope 30 is released, and the elastic plate 10 is reset under the action of its own elastic restoring force, so that the patient's nasal cavity can be tightened again, which is extremely flexible and convenient to use.

[0031] In actual use, the traction rope 30 can be directly formed by, for example, a plastic strip, and does not necessarily have to be a rope body structure. By rotating the pressure ring 40 during operation, the traction rope 30 can be pressed down and relaxed. The anti-slip pattern 41 is designed to increase the operating feel. It will not be repeated here.

[0032] Figure 3 This is a further optimized embodiment of the present invention, and its purpose is to form an external component as an accessory for the conventional stomach tube a currently circulated in the market. Specifically, the aforementioned pressure ring 40, threaded sleeve 20 and even elastic plate 10 are all uniformly integrated and installed on the fixed sleeve 50, and the fixed sleeve 50 is further Figure 3 As shown, it is fixed on the gastric tube a by a set screw or other conventional detachable structure. In this way, only a fixing sleeve 50 with a threaded sleeve 20 and an elastic plate 10 needs to be manufactured during production, and the fixing sleeve 50 is fixed on the corresponding existing gastric tube a that has been purchased during use, which has lower production costs, more flexible operation, and is more conducive to use in the current environment.

[0033] Of course, it will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0035] The techniques, shapes, and structural parts not described in detail in the present invention are all well-known techniques.

Claims

1. A nasal gastric tube fixer, characterized in that: The invention comprises an elastic plate (10), the elastic plate (10) extends circumferentially around the gastric tube and forms a C-shaped plate, the middle section of the inner wall of the elastic plate (10) and the outer wall of the gastric tube are connected to each other via a radial connecting column (11); the fixator also comprises a threaded sleeve (20) coaxially fixed to the outer wall of the gastric tube, the tail end of the traction rope (30) is fixed on the elastic plate (10) and there is a spacing between the fixing point and the radial connecting column (11), the coaxial thread on the threaded sleeve (20) is matched with a pressure ring (40), and a passage cavity for the traction rope (30) to be inserted into is formed between the pressure ring (40) and the outer wall of the gastric tube, and the head end of the traction rope (30) is extended into the passage cavity along the axial direction of the gastric tube and forms a fixed fit with the threaded sleeve (20); in the radial direction of the pressure ring (40), the thickness of the passage cavity is smaller than the radial spacing between the tail end of the traction rope (30) and the outer wall of the gastric tube; The inner wall of the pressure ring (40) is provided with a bushing-shaped wear-resistant layer; The outer wall of the pressing ring (40) is provided with anti-slip patterns (41) for easy operation.

2. A nasal gastric tube fixer according to claim 1, characterized in that: A fixing sleeve (50) and a threaded sleeve (20) are coaxially arranged in sequence from the inside to the outside along the radial direction of the gastric tube, and an integrated structure is formed between the fixing sleeve (50) and the threaded sleeve (20). The fixing sleeve (50) is detachably fixed to the outer wall of the gastric tube by means of a set screw or a half joint.

3. A nasal gastric tube fixer according to claim 2, characterized in that: The axis of the radial connecting column (11) forms an angle with the axis of the fixed sleeve (50), and the tip of the angle points to the direction of the threaded sleeve (20); the end of the elastic plate (10) adjacent to the threaded sleeve (20) is the front end, the elastic plate (10) is in the shape of a frustum-shaped plate structure with a front end aperture larger than a rear end aperture, and the tail end of the traction rope (30) is fixed to the inner arc surface of the elastic plate (10).

4. A nasal gastric tube fixer according to claim 1, 2 or 3, characterized in that: The cantilever end of the elastic plate (10) is provided with an inwardly curled arc-shaped inner flange.

5. A nasal gastric tube fixer according to claim 4, characterized in that: A soft cushion layer is provided on the outer arc surface of the elastic plate (10) and at both cantilever ends.

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