Remaining needle capable of preventing cannula from being broken

Abstract

The utility model relates to the technical field of indwelling needles, in particular to an indwelling needle capable of preventing a cannula from being broken, which comprises a needle seat, a needle core penetrating through the inside of the needle seat, a cannula inserted into a blood vessel of a patient arranged on one side of the needle seat, and a transition part connected to the end of the cannula and in a soft shape. The connecting part is connected between the transition part and the needle base, the connecting part is soft, the sleeve is connected to the needle base through the connecting part and the transition part, the possibility of breakage of the remaining needle can be reduced through the arranged transition part, and bending force can be directly transmitted through the soft transition part and the connecting part when the wrist of a patient rotates; the possibility of breakage of the sleeve is further reduced, the patient is ensured to be in a safe state, and the workload and worry degree of medical staff are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of indwelling needles, in particular to an indwelling needle that prevents cannula breakage. Background Art

[0002] In today's healthcare environment, medical professionals often face numerous challenges. Among them, the use of intravenous catheters in agitated patients or uncooperative children is particularly problematic.

[0003] Medical staff have witnessed many children who, due to their active nature, find it difficult to control their behavior after receiving an intravenous catheter. They constantly twist their bodies and wave their arms, causing the flexible tube at the front end of the catheter to break in the blood vessel. This situation not only brings great pain and danger to the patients, but also makes medical staff feel extremely distressed and worried. To this end, we have proposed an intravenous catheter that prevents the cannula from breaking. Utility Model Content

[0004] The purpose of the utility model is to provide an indwelling needle that can prevent cannula breakage, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a cannula-break-proof indwelling needle, comprising a needle seat, a needle core passing through the interior of the needle seat, a cannula provided on one side of the needle seat for insertion into a patient's blood vessel, and further comprising:

[0006] A transition portion, which is connected to the end of the sleeve and is soft;

[0007] The connecting part is connected between the transition part and the needle seat, the connecting part is soft, and the connecting part and the transition part connect the sleeve to the needle seat.

[0008] Among them, the transition part and the connecting part are both made of soft silicone.

[0009] The outer diameter of the transition portion gradually increases from the side close to the sleeve to the side of the connection portion.

[0010] The connecting portion is provided with a plurality of grooves, which are distributed at equal intervals.

[0011] The groove includes a bending portion close to the needle core, and a side of the groove away from the needle core is an abutment portion.

[0012] The distances between the bent portions of the plurality of grooves and the needle core are equal.

[0013] The bending portion has a width smaller than that of the abutting portion.

[0014] The width of the abutting portion is greater than that of the bending portion.

[0015] The utility model has at least the following beneficial effects:

[0016] The provision of a transition portion can reduce the possibility of the indwelling needle breaking. The soft transition portion and connecting portion can directly transmit bending force when the patient's wrist rotates, further reducing the possibility of the cannula breaking, ensuring the patient's safety, and reducing the workload and worry of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a partial structural diagram of the utility model;

[0019] Figure 3 This is a structural diagram of the first embodiment of the present utility model;

[0020] Figure 4 This is a structural diagram of the second embodiment of the present utility model;

[0021] Figure 5 for Figure 4 Enlarged view of area A in the middle;

[0022] Figure 6 This is a structural diagram of the third embodiment of the present utility model;

[0023] Figure 7 for Figure 6 Enlarged view of area B.

[0024] In the figure: 1, sleeve; 2, transition part; 3, connecting part; 4, needle seat; 5, needle core; 6, groove; 61, abutment part; 62, bending part. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] See also Figures 1 to 7 The present invention provides a technical solution: a cannula-break-proof indwelling needle, comprising a needle seat 4, a needle core 5 passing through the interior of the needle seat 4, a cannula 1 inserted into a patient's blood vessel provided on one side of the needle seat 4, and further comprising:

[0028] The transition portion 2 is connected to the end of the sleeve 1. The transition portion 2 is soft and fixed to the sleeve 1 by glue.

[0029] The connecting portion 3 is connected between the transition portion 2 and the needle seat 4. The connecting portion 3 is soft. The connecting portion 3 and the transition portion 2 connect the sleeve 1 to the needle seat 4. The connecting portion 3 and the needle seat 4 are fixedly connected.

[0030] The transition portion 2 and the connecting portion 3 are both made of soft silicone material. The transition portion 2 and the connecting portion 3 are integrally formed, and the connecting portion 3 is fixedly connected to the needle seat 4 by glue.

[0031] The outer diameter of the transition portion 2 gradually increases from the side close to the sleeve 1 to the side of the connecting portion 3, and the possibility of the sleeve 1 being broken is reduced by the tapered transition portion 2.

[0032] The connecting portion 3 is provided with a plurality of grooves 6 which are equidistantly distributed. The grooves 6 can transmit the bending action of the sleeve 1 to the connecting portion 3 when the patient swings, thereby further reducing the risk of the sleeve 1 breaking.

[0033] The groove 6 includes a bending portion 62 close to the needle core 5, and the side of the groove 6 away from the needle core 5 is an abutment portion 61. The bending portion 62 directly bears the breaking force of repeated bending, and the abutment portion 61 limits the degree of bending, so that the bending portion 62 can withstand multiple bending.

[0034] The distances between the bending portions 62 of the multiple grooves 6 and the needle core 5 are equal. The multiple grooves 6 are evenly distributed so that when the patient's movements are too large, the movements can be transferred to each groove 6, thereby reducing the possibility of a single bending portion 62 being broken and ensuring the long-term use of the indwelling needle.

[0035] During use, the needle core 5 needs to be inserted into the patient's blood vessel together with the sleeve 1. The needle core 5 is pulled out after being inserted into the blood vessel. At this time, the needle seat 4 is attached to the patient's skin surface through a thin film. When the patient becomes agitated and the wrist is bent and moved, the soft and tapered transition part 2 is not easy to break, and the bending force is transferred to the connecting part 3. At this time, the connecting part 3 withstands the bending, so even if the indwelling needle breaks, it will break on the skin surface, and the sleeve 1 is not easy to break, ensuring the safety of the patient.

[0036] Example 2

[0037] The width of the bending portion 62 is smaller than the abutting portion 61, so that the bending portion 62 can be broken immediately during long-term and high-frequency movements of younger patients such as children, thereby reducing the risk of the sleeve 1 breaking and improving the safety of the indwelling needle.

[0038] Example 3

[0039] The width of the abutment portion 61 is greater than that of the bending portion 62. When the patient bends the wrist, the abutment portions 61 will first squeeze each other, thereby absorbing most of the bending force through the abutment portion 61, reducing the possibility of the bending portion 62 breaking and extending the retention time of the indwelling needle.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cannula-break-proof indwelling needle, comprising a needle seat (4), a needle core (5) passing through the interior of the needle seat (4), and a cannula (1) inserted into a patient's blood vessel provided on one side of the needle seat (4), characterized in that: Also includes: A transition portion (2), the transition portion (2) being connected to the end of the sleeve (1), and the transition portion (2) being soft; A connecting portion (3) is connected between the transition portion (2) and the needle seat (4); the connecting portion (3) is soft; the connecting portion (3) and the transition portion (2) connect the sleeve (1) to the needle seat (4).

2. The cannula-break-proof indwelling needle according to claim 1, characterized in that: The transition portion (2) and the connecting portion (3) are both made of soft silicone material.

3. The cannula-break-proof indwelling needle according to claim 1, characterized in that: The outer diameter of the transition portion (2) gradually increases from the side close to the sleeve (1) to the side of the connecting portion (3).

4. The cannula-break-proof indwelling needle according to claim 1, characterized in that: The connecting portion (3) is provided with a plurality of grooves (6), and the plurality of grooves (6) are distributed at equal intervals.

5. The cannula-break-proof indwelling needle according to claim 4, characterized in that: The groove (6) comprises a bending portion (62) close to the needle core (5), and the side of the groove (6) away from the needle core (5) is an abutment portion (61).

6. The cannula-break-proof indwelling needle according to claim 5, characterized in that: The distances between the bent portions (62) of the plurality of grooves (6) and the needle core (5) are equal.

7. The cannula-break-proof indwelling needle according to claim 5, characterized in that: The width of the bending portion (62) is smaller than that of the abutting portion (61).

8. The cannula-break-proof indwelling needle according to claim 5, characterized in that: The width of the abutting portion (61) is greater than that of the bending portion (62).

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