Indwelling needle capable of preventing bruise

Abstract

The utility model relates to the technical field of indwelling needles, and discloses an anti-bruise indwelling needle which comprises a flow guide mechanism, a puncture guide needle penetrating through the flow guide mechanism and a catheter seat arranged at one end of the flow guide mechanism. A fixing assembly is arranged on the flow guide mechanism and comprises a first plate arranged on the outer side wall of a guide pipe base of the flow guide mechanism. The rotating assembly is arranged on the first plate; the second plate is arranged on the rotating assembly; the hole groove is formed in one side of the second plate. According to the anti-bruise indwelling needle, the fixing assembly is arranged on the catheter base, the catheter base and the body surface of a patient are fixed through the first plate and the second plate which are connected through the rotating assembly, the position of the catheter base is fixed through the medical double-sided sticker on the second plate, and a user can conveniently fix the catheter base after puncturing the body surface of the patient. According to the anti-bruise remaining needle, the rotating assembly composed of the third plate, the shaft body, the pipe body and the torsional spring is arranged, and after a user releases the second plate, the acting force of deformation recovery of the torsional spring can drive the medical double-sided paste on the second plate to be pasted to the body surface of a patient.

Description

Technical Field

[0001] The utility model relates to the technical field of indwelling needles, in particular to an indwelling needle for preventing pressure injury. Background Technique

[0002] An indwelling needle is an infusion device widely used in clinical practice. Its core components include a soft catheter that can be indwelled in a blood vessel, a catheter hub, and a stainless-steel puncture guiding stylet. When in use, the catheter and the stylet are punctured into the blood vessel together. After the catheter has completely entered the blood vessel, the stylet is withdrawn, and the soft catheter is indwelled in the blood vessel for infusion treatment. Then, the catheter hub is fixed on the body surface with a dressing. After the catheter and the stylet of the indwelling needle are inserted into the blood vessel, infusion treatment can be carried out multiple times within a certain period. Using an indwelling needle can reduce the number of punctures, avoid the pain and fear caused to patients by repeated punctures, and also improve the work efficiency of medical staff. The contact area between the catheter hub and the skin is small. Since the catheter hub is made of hard plastic and combined with the pressing effect of the dressing, the pressure of the indwelling needle on the patient's skin is relatively large, and it is easy for the patient's skin to show local redness, infection or injury, and even cause pressure injury.

[0003] In the prior art, before using the puncture guiding stylet to pierce the patient's skin, a buckle for fixing the catheter hub is first pasted around the puncture site of the patient. After the puncture guiding stylet completes the puncture, the catheter hub is covered by a flip cover rotatably connected to the buckle, and the flip cover is fixed to the buckle body to complete the fixation of the catheter hub. However, this fixation method separates the buckle from the catheter hub, and it is difficult to adjust the position of the buckle according to the position of the catheter hub after puncture during use. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides an indwelling needle for preventing pressure injury, which has the advantage of being able to determine the fixed position of the catheter hub on the patient's body surface after puncture, and solves the problem that the method of pasting a buckle on the patient's body surface first is not convenient for the user to adjust the position of the buckle according to the position of the catheter hub after puncture.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: An indwelling needle for preventing pressure injury, comprising a diversion mechanism, a puncture guiding stylet penetrating through the diversion mechanism, and a catheter hub arranged at one end of the diversion mechanism;

[0008] A fixing assembly is arranged on the diversion mechanism, and the fixing assembly includes:

[0009] A first plate, arranged on the outer side wall of the catheter hub of the diversion mechanism;

[0010] The rotating assembly is arranged on the first plate;

[0011] The second plate is arranged on the rotating assembly;

[0012] The hole groove is opened on one side of the second plate;

[0013] The spring is arranged in the hole groove;

[0014] The clamping block is slidably connected in the hole groove, and the clamping block is connected to the spring;

[0015] The clamping groove is opened on the first plate, and the clamping groove matches the clamping block;

[0016] The medical double-sided tape is arranged on the second plate.

[0017] In some embodiments, the rotating assembly includes:

[0018] The third plate is symmetrically arranged on one side of the first plate;

[0019] The shaft body is arranged on the two third plates;

[0020] The tube body is rotatably connected to the outer side wall of the shaft body, and the second plate is arranged on the outer side wall of the tube body;

[0021] The torsion spring is sleeved on the shaft body.

[0022] In some embodiments, two rotating assemblies are symmetrically arranged on both sides of the first plate with respect to the diversion mechanism, and the second plates are arranged on both of the two rotating assemblies.

[0023] In some embodiments, two torsion springs are sleeved on the shaft body symmetrically with respect to the tube body.

[0024] In some embodiments, through holes are opened on the outer side wall of the second plate, and the through holes penetrate through the medical double-sided tape.

[0025] In some embodiments, a frame body is arranged on the outer side wall of the second plate, and the medical double-sided tape is arranged on the surface of the frame body.

[0026] In some embodiments, a plurality of strip-shaped grooves are uniformly opened on the outer side wall of the first plate.

[0027] In some embodiments, a rubber strip is arranged on the outer side wall of the first plate.

[0028] By adopting the above scheme, the fixed position of the catheter seat on the patient's body surface can be determined after puncture.

[0029] (III) Beneficial effects

[0030] Compared with the prior art, the present utility model provides an indwelling needle for preventing pressure injury, which has the following beneficial effects:

[0031] 1. For this anti-pressure injury indwelling needle, a fixing component is provided on the catheter base. The first plate and the second plate connected by a rotating component fix the catheter base to the patient's body surface. The position of the catheter base is fixed by the medical double-sided tape on the second plate, which facilitates the user to fix the catheter base after puncturing the patient's body surface.

[0032] 2. For this anti-pressure injury indwelling needle, by setting a rotating component composed of a third plate, a shaft body, a tube body and a torsion spring, the acting force of the torsion spring restoring deformation can drive the medical double-sided tape on the second plate to stick to the patient's body surface after the user releases the second plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of the present utility model;

[0034] Figure 2 is an enlarged schematic structural diagram of area A in the present utility model;

[0035] Figure 3 is a schematic bottom view structural diagram of the strip groove in the present utility model;

[0036] Figure 4 is a schematic structural diagram of the hole groove and the clamping block in the present utility model;

[0037] Figure 5 is a schematic structural diagram of the first plate and the card slot in the present utility model;

[0038] Figure 6 is a schematic structural diagram of the frame body and the medical double-sided tape in the present utility model;

[0039] Figure 7 is a schematic structural diagram of the rubber strip in the present utility model.

[0040] In the figure:

[0041] 1. Diversion mechanism;

[0042] 2. Puncture guiding needle;

[0043] 3. Fixing component; 31. First plate; 32. Second plate; 33. Hole groove; 34. Spring; 35. Clamping block; 36. Card slot; 37. Medical double-sided tape;

[0044] 4. Rotating component; 41. Third plate; 42. Shaft body; 43. Tube body; 44. Torsion spring;

[0045] 5. Through hole;

[0046] 6. Infusion tube;

[0047] 7. Frame body;

[0048] 8. Strip groove;

[0049] 9. Rubber strip;

[0050] 10. Catheter seat. Detailed implementation manners

[0051] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0052] It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0053] In the present application, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0054] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0055] When the anti-pressure injury indwelling needle is in use, first fix the buckle near the body surface of the patient to be punctured, puncture the catheter and the stylet with the puncture guiding needle into the blood vessel at the specified position together. After the catheter completely enters the blood vessel, withdraw the puncture guiding needle, then fix the catheter seat at one end of the catheter on the buckle, leave the catheter in the blood vessel, and perform infusion treatment through the hose communicating with the catheter.

[0056] In the related art, when the anti-pressure injury indwelling needle is in use, it is necessary to first fix the buckle to the body surface and then fix the catheter seat to the buckle. Since the buckle is separated from the catheter seat, it is difficult to adjust the position of the buckle according to the position of the catheter seat after puncture during use.

[0057] To solve the problems in the related art to a certain extent, the embodiment of the present application provides an anti-pressure injury indwelling needle. When using the anti-pressure injury indwelling needle, rotate the second plate 32 around the rotating assembly 4, pinch the second plate 32 and the catheter seat 10 of the diversion mechanism 1 together and puncture the patient's body surface. After the puncture is completed, take out the puncture guiding needle 2 from one end of the catheter seat 10, tear off the film on the surface of the medical double-sided tape 37, and rotate the second plate 32 until the block 35 is engaged with the hole groove 33, so that the second plate 32 is adhered to the patient's body surface, thereby fixing the catheter seat 10 and avoiding the situation that it is difficult to adjust the position of the fixing assembly 3 according to the position of the catheter seat 10 after puncture.

[0058] The present application will be described below with reference to the accompanying drawings and specific embodiments:

[0059] Combined with Figures 1 - 7 , the embodiment of the present application provides an anti-pressure injury indwelling needle. The anti-pressure injury indwelling needle includes a diversion mechanism 1, a puncture guiding needle 2 penetrating through the diversion mechanism 1, and a catheter seat 10 provided at one end of the diversion mechanism 1; a fixing assembly 3 is provided on the diversion mechanism 1, and the fixing assembly 3 includes: a first plate 31 provided on the outer side wall of the catheter seat 10 of the diversion mechanism 1; a rotating assembly 4 provided on the first plate 31; a second plate 32 provided on the rotating assembly 4; a hole groove 33 opened on one side of the second plate 32; a spring 34 provided in the hole groove 33; a block 35 slidably connected in the hole groove 33, and the block 35 is connected to the spring 34; a card slot 36 is opened on the first plate 31, and the card slot 36 matches the block 35; a medical double-sided tape 37 is provided on the second plate 32.

[0060] When using the anti-pressure injury indwelling needle, in the initial state, the puncture guiding needle 2 penetrates through the diversion mechanism 1, and the wing of the puncture guiding needle 2 clamps the second plate 32, so that the second plate 32 is kept in a state of being attached to the surface of the catheter seat 10, as Figure 3 , pinch the second plate 32 and the catheter seat 10 of the diversion mechanism 1 together and puncture the patient's body surface. After the puncture is completed, take out the puncture guiding needle 2 from one end of the catheter seat 10, slowly place the catheter seat 10 flat until the first plate 31 is attached to the patient's body surface, tear off the anti-sticking oil paper on the surface of the medical double-sided tape 37 and release the second plate 32. The second plate 32 rotates around the rotating assembly 4 until the medical double-sided tape 37 is attached to the patient's body surface. During the rotation of the second plate 32, the block 35 slides on the surface of the catheter seat 10 under the action of the spring 34 until the medical double-sided tape 37 on the second plate 32 is adhered to the patient's body surface, as Figure 1 , the block 35 slides to be engaged with the card slot 36 on the first plate 31, realizing the fixation of the catheter seat 10, which is convenient for the user to fix the punctured catheter seat 10 at the corresponding position on the patient's body surface.

[0061] In some embodiments, the rotating assembly 4 includes: a third plate 41 symmetrically arranged on one side of the first plate 31; a shaft body 42 arranged on the two third plates 41; a tube body 43 rotatably connected to the outer sidewall of the shaft body 42, and the second plate 32 is arranged on the outer sidewall of the tube body 43; a torsion spring 44 sleeved on the shaft body 42.

[0062] When the second plate 32 is in contact with the outer wall of the catheter seat 10, the torsion spring 44 deforms. When it is necessary to make the second plate 32 fit against the patient's body surface, release the second plate 32, and the force of the torsion spring 44 to restore deformation causes the tube body 43 to rotate on the surface of the shaft body 42. The tube body 43 drives the second plate 32 to rotate towards the direction close to the patient's body surface, and finally the medical double-sided tape 37 on the second plate 32 adheres to the patient's body surface.

[0063] In some embodiments, two rotating assemblies 4 are symmetrically arranged on both sides of the first plate 31 with respect to the diversion mechanism 1, and the second plates 32 are arranged on both of the two rotating assemblies 4.

[0064] Two wings are symmetrically arranged on the puncture guiding needle 2. As Figures 1 - 3 can be seen, when the puncture guiding needle 2 is fixedly installed together with the diversion mechanism 1, the second plate 32 and the tube body 43 rotate around the shaft body 42 to be clamped in the gap between the wing and the catheter seat 10. The setting of the two rotating assemblies 4 makes the fixation of the second plate 32 to the catheter seat 10 more stable.

[0065] In some embodiments, two torsion springs 44 are sleeved on the shaft body 42 symmetrically with respect to the tube body 43.

[0066] The two torsion springs 44 are sleeved on the shaft body 42 symmetrically with respect to the tube body 43. The two ends of the torsion spring 44 are respectively connected to the tube body 43 and the third plate 41. The setting of the two torsion springs 44 makes the rotation of the second plate 32 on the shaft body 42 more stable.

[0067] In some embodiments, a through hole 5 is formed on the outer sidewall of the second plate 32, and the through hole 5 penetrates through the medical double-sided tape 37.

[0068] This enables the second plate 32 and the medical double-sided tape 37 to be more breathable when they are in contact with the patient's body surface.

[0069] In some embodiments, a frame body 7 is arranged on the outer sidewall of the second plate 32, and the medical double-sided tape 37 is arranged on the surface of the frame body 7.

[0070] Further reduces the contact area between the second plate 32 and the patient's body surface and increases the breathability of the second plate 32.

[0071] In some embodiments, a plurality of strip-shaped grooves 8 are uniformly formed on the outer sidewall of the first plate 31.

[0072] Reduce the contact area between the first plate 31 and the patient's body surface, and increase the air circulation on the patient's body surface.

[0073] In some embodiments, an adhesive strip 9 is provided on the outer sidewall of the first plate 31.

[0074] After the first plate 31 is attached to the patient's body surface, the friction between the first plate 31 and the patient's body surface is increased, and the stability of the fixation of the catheter seat 10 is increased.

[0075] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0076] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0077] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-pressure indwelling needle, comprising a flow guiding mechanism (1), a puncture guide needle (2) penetrating the flow guiding mechanism (1), and a catheter seat (10) arranged at one end of the flow guiding mechanism (1); Features: The flow guiding mechanism (1) is provided with a fixing component (3), and the fixing component (3) comprises: Plate 1 (31) is arranged on the outer side wall of the catheter seat (10) of the flow guiding mechanism (1); A rotating assembly (4) is disposed on the plate 1 (31); Plate 2 (32), disposed on the rotating assembly (4); A hole groove (33) is provided on one side of the second plate (32); A spring (34) is disposed in the hole (33); A clamping block (35) is slidably connected in the hole groove (33) and connected to the spring (34); A card slot (36) is provided on the plate 1 (31), and the card slot (36) matches the card block (35); A medical double-sided patch (37) is arranged on the second plate (32).

2. The anti-pressure indwelling needle according to claim 1, characterized in that: The rotating assembly (4) comprises: Plate three (41), symmetrically arranged on one side of the plate one (31); A shaft (42) is arranged on the two plates (41); The tube body (43) is rotatably connected to the outer wall of the shaft body (42), and the second plate (32) is arranged on the outer wall of the tube body (43); The torsion spring (44) is sleeved on the shaft (42).

3. The anti-pressure indwelling needle according to claim 1, characterized in that: The guide mechanism (1) is symmetrically provided with two rotating components (4) on both sides of the plate one (31), and the plate two (32) is provided on both rotating components (4).

4. The anti-pressure indwelling needle according to claim 2, characterized in that: The shaft body (42) is symmetrically sleeved with two torsion springs (44) on the tube body (43).

5. The anti-pressure indwelling needle according to claim 1, characterized in that: The outer wall of the second plate (32) is provided with a through hole (5), and the through hole (5) passes through the medical double-sided patch (37).

6. The anti-pressure indwelling needle according to claim 1, characterized in that: The outer side wall of the second plate (32) is provided with a frame (7), and the surface of the frame (7) is provided with the medical double-sided patch (37).

7. The anti-pressure indwelling needle according to claim 1, characterized in that: The outer side wall of the plate 1 (31) is evenly provided with a plurality of strip-shaped grooves (8).

8. The anti-pressure indwelling needle according to claim 1, characterized in that: The outer side wall of the plate 1 (31) is provided with a rubber strip (9).

Images