Safety protection sleeve for intravenous infusion needle

Abstract

The utility model discloses a safety protection sleeve for an intravenous infusion needle, and relates to the technical field of medical instruments. Comprising an infusion tube, a connector is installed at the left end of the infusion tube, a connecting tube is installed at the right end of the infusion tube, a needle tube is installed at the end, away from the infusion tube, of the connecting tube, a needle head is installed at the end, away from the connecting tube, of the needle tube, and a needle handle is installed on the right side of the circumferential surface of the needle tube; the connecting sleeve is movably installed on the outer side of the connecting pipe, the upper end of the connecting sleeve is fixedly connected with a protective sleeve, a groove is formed in the side, facing the needle handle, of the circumferential surface of the protective sleeve, a fixing sleeve is installed at the lower end of the connecting sleeve and is in threaded connection to the circumferential surface of the connecting pipe, and a limiting block is installed at the top end of the fixing sleeve. A movable groove is formed in the bottom end of the connecting sleeve, the limiting block is movably installed in the movable groove, and a fixing clamp is movably connected to the middle of the circumferential surface of the infusion tube.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a safety protective cover for an intravenous infusion needle. Background Art

[0002] Intravenous infusion is a commonly used medical measure in clinical practice, and intravenous infusion must use intravenous infusion needles. Therefore, disposable intravenous infusion sets are widely used in clinical practice, which makes the needle tip of intravenous infusion needles stab the relevant medical staff during use and recovery, causing medical staff to be infected with a large number of bacteria and viruses carried by the patient after the intravenous infusion needle is used. Intravenous infusion needles generally use stainless steel needle tubes and needle handles that are bonded and fixed. The rear of the needle handle is connected to a plastic hose, and the needle seat is connected to the back of the plastic hose. The needle tube is equipped with a protective cap. The protective cap is to prevent the intravenous infusion needle from injuring people before use and is in a sterile state. Medical staff remove the protective cap before use and then perform intravenous infusion into the human body.

[0003] Medical workers have found that after the infusion is over, it is difficult for medical staff to put the protective cap back on the needle because the protective cap is slender and easy to lose, and the inner diameter is small. Sometimes the needle will pierce the infusion hose, but the infusion hose is soft, and the needle will pierce the hose wall, exposing the needle directly to the outside, injuring medical staff or cleaning staff when collecting medical waste, causing infection with medical germs, causing the spread of infectious diseases, and causing cross infection. For this reason, we propose a safety protective cover for intravenous infusion needles. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that after the infusion is finished, the protective cap is thin and easy to be lost, and the inner diameter is small, so it is difficult for medical staff to put the protective cap back on the needle. Sometimes the needle will be pierced into the infusion hose, but the infusion hose is relatively soft, and the needle will pierce the hose wall from the hose, so that the needle is directly exposed to the outside, which will injure medical staff or cleaning personnel when collecting medical waste, leading to infection with medical germs, causing the spread of infectious diseases and causing cross infection. The utility model provides a safety protective cover for intravenous infusion needles.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] The needle tube of the embodiment of the present invention is a kind of intravenous infusion needle safety protection sleeve, comprising an infusion tube, a connector is installed on the left end of the infusion tube, a connecting tube is installed on the right end of the infusion tube, a needle tube is installed on the end of the connecting tube away from the infusion tube, a needle head is installed on the end of the needle tube away from the connecting tube, a needle handle is installed on the right side of the circumferential surface of the needle tube, a connecting sleeve is installed on the circumferential surface of the connecting tube, the connecting sleeve is movably installed on the outer side of the connecting tube, the upper end of the connecting sleeve is fixedly connected with a protective sleeve, a groove is provided on the circumferential surface of the protective sleeve facing the needle handle, a fixing sleeve is installed on the lower end of the connecting sleeve, the fixing sleeve is threadedly connected to the circumferential surface of the connecting tube, a limiting block is installed on the top of the fixing sleeve, a movable groove is provided inside the bottom end of the connecting sleeve, the limiting block is movably installed in the movable groove, and a fixing clamp is movably connected to the middle part of the circumferential surface of the infusion tube.

[0007] Furthermore, anti-slip grooves are provided on the upper and lower sides of the needle handle.

[0008] Furthermore, the inner diameter of the connecting sleeve is slightly larger than the outer diameter of the connecting pipe.

[0009] Furthermore, the length of the protective sleeve is greater than the length of the needle tube and the needle, and the inner diameter of the protective sleeve is greater than the outer diameter of the connecting tube.

[0010] Furthermore, the height of the groove is greater than the height of the needle handle.

[0011] Furthermore, the size of the internal thread formed inside the fixing sleeve is consistent with the size of the external thread formed on the circumferential surface of the connecting pipe.

[0012] Furthermore, the size of the limit block is consistent with the size of the movable groove.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. When the utility model is in use, the connecting sleeve and the protective sleeve are installed on the connecting tube through the fixing sleeve. Then, when the medical staff infuse the patient, by rotating the fixing sleeve, the limit block installed on the fixing sleeve is rotated in the movable groove in the connecting sleeve, so that the connecting sleeve and the protective sleeve are removed from the connecting tube, and the connecting sleeve and the protective sleeve are movably installed on the infusion tube through the fixing sleeve. Then, after the patient has finished the infusion, the connecting sleeve and the protective sleeve are installed on the connecting tube to shield the needle, thereby preventing the needle from being exposed to the outside and causing harm to the medical staff or cleaning staff.

[0015] 2. When the utility model is in use, before and after the medical staff infuse the patient, the connecting sleeve and the protective sleeve can be installed on the connecting tube by rotating the fixing sleeve to shield the needle, thereby preventing the needle from being exposed to the outside and causing harm to the medical staff or cleaning staff.

[0016] 3. When the utility model is in use, the size of the internal thread opened inside the fixing sleeve is consistent with the size of the external thread opened on the circumferential surface of the connecting pipe, thereby reducing the gap between the fixing sleeve and the connecting pipe, so that the fixing sleeve can more stably install the connecting sleeve and the protective sleeve on the connecting pipe, avoiding the connection sleeve and the protective sleeve from falling off and affecting the use of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a schematic diagram of the extension of the utility model;

[0019] Figure 3 It is the right side view of the utility model;

[0020] Figure 4 It is a cross-sectional view of the utility model.

[0021] Figure numerals: 1. infusion tube; 2. connector; 3. connecting tube; 4. needle tube; 5. needle; 6. needle handle; 7. connecting sleeve; 8. protective sleeve; 9. groove; 10. fixing sleeve; 11. limiting block; 12. movable groove; 13. fixing clamp. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0023] See also Figure 1-Figure 4The utility model provides a safety protection sleeve for an intravenous infusion needle, comprising an infusion tube 1, a connector 2 is installed at the left end of the infusion tube 1, a connecting tube 3 is installed at the right end of the infusion tube 1, a needle tube 4 is installed at the end of the connecting tube 3 away from the infusion tube 1, a needle head 5 is installed at the end of the needle tube 4 away from the connecting tube 3, a needle handle 6 is installed on the right side of the circumferential surface of the needle tube 4, a connecting sleeve 7 is installed on the circumferential surface of the connecting tube 3, the connecting sleeve 7 is movably installed on the outside of the connecting tube 3, a protective sleeve 8 is fixedly connected to the upper end of the connecting sleeve 7, a groove 9 is opened on the circumferential surface of the protective sleeve 8 facing the needle handle 6, a fixing sleeve 10 is installed at the lower end of the connecting sleeve 7, the fixing sleeve 10 is threadedly connected to the circumferential surface of the connecting tube 3, a limiting block 11 is installed at the top of the fixing sleeve 10, a movable groove 12 is opened inside the bottom end of the connecting sleeve 7, the limiting block 11 is movably installed in the movable groove 12, and a fixing clamp 13 is movably connected to the middle part of the circumferential surface of the infusion tube 1.

[0024] In the present embodiment, preferably, anti-slip grooves are provided on the upper and lower sides of the needle handle 6; by providing anti-slip grooves on the upper and lower sides of the needle handle 6, the friction between the medical staff's fingers and the needle handle 6 can be increased, so that the medical staff can more stably insert the needle installed on the needle handle 6 into the patient's vein, avoiding slippage between the medical staff's fingers and the needle handle 6, thereby increasing the patient's pain.

[0025] In the present embodiment, preferably, the inner diameter of the connecting sleeve 7 is slightly larger than the outer diameter of the connecting tube 3; when the inner diameter of the connecting sleeve 7 is slightly larger than the outer diameter of the connecting tube 3, it is possible to rotate the fixing sleeve 10 and then allow the fixing sleeve 10 to move with the connecting sleeve 7, thereby avoiding friction between the connecting sleeve 7 and the connecting tube 3, thereby affecting the service life of the connecting sleeve 7 and the connecting tube 3.

[0026] In this embodiment, preferably, the length of the protective sleeve 8 is greater than the length of the needle tube 4 and the needle 5, and the inner diameter of the protective sleeve 8 is greater than the outer diameter of the connecting tube 3; when the length of the protective sleeve 8 is greater than the length of the needle tube 4 and the needle 5, and the inner diameter of the protective sleeve 8 is greater than the outer diameter of the connecting tube 3, before and after the medical staff performs an infusion on the patient, the connecting sleeve 7 and the protective sleeve 8 can be installed on the connecting tube 3 by rotating the fixing sleeve 10 to shield the needle 5, thereby preventing the needle 5 from being exposed to the outside and causing harm to the medical staff or cleaning staff.

[0027] In the present embodiment, preferably, the height of the groove 9 is greater than the height of the needle handle 6; when the height of the groove 9 is greater than the height of the needle handle 6, the connecting sleeve 7 and the protective sleeve 8 can be installed on the connecting tube 3 by rotating the fixing sleeve 10, so that the groove 9 can be moved along the needle handle 6, thereby avoiding excessive friction between the side wall of the groove 9 and the needle handle 6, thereby ensuring the use of the medical staff.

[0028] In this embodiment, preferably, the size of the internal thread opened inside the fixing sleeve 10 is consistent with the size of the external thread opened on the circumferential surface of the connecting tube 3; when the size of the internal thread opened inside the fixing sleeve 10 is consistent with the size of the external thread opened on the circumferential surface of the connecting tube 3, the gap between the fixing sleeve 10 and the connecting tube 3 can be reduced, so that the fixing sleeve 10 can more stably install the connecting sleeve 8 and the protective sleeve 9 on the connecting tube 3, avoiding the connection sleeve 8 and the protective sleeve 9 from falling off and affecting the use of medical staff.

[0029] In this embodiment, preferably, the size of the limit block 11 is consistent with the size of the movable groove 12; when the size of the limit block 11 is consistent with the size of the movable groove 12, the gap between the limit block 11 and the movable groove 12 can be reduced, thereby avoiding the fixing sleeve 10 from shaking on the connecting sleeve 7 and affecting the stability of the fixing sleeve 10.

[0030] The working principle and use process of the utility model are as follows: when the device is used, the connecting sleeve 7 and the protective sleeve 8 are installed on the connecting tube 3 through the fixing sleeve 10. Then, when the medical staff performs an infusion on the patient, by rotating the fixing sleeve 10, the limit block 11 installed on the fixing sleeve 10 is rotated in the movable groove 12 in the connecting sleeve 7, so that the connecting sleeve 7 and the protective sleeve 8 are removed from the connecting tube 3, and the connecting sleeve 7 and the protective sleeve 8 are movably installed on the infusion tube 1 through the fixing sleeve 10. Then, when the patient has finished the infusion, the connecting sleeve 7 and the protective sleeve 8 are installed on the connecting tube 3 to shield the needle 5, thereby preventing the needle 5 from being exposed to the outside and causing harm to the medical staff or cleaning staff.

[0031] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A safety cover for an intravenous infusion needle, characterized in that: The invention comprises an infusion tube (1), wherein a connector (2) is installed at the left end of the infusion tube (1), a connecting tube (3) is installed at the right end of the infusion tube (1), a needle tube (4) is installed at the end of the connecting tube (3) away from the infusion tube (1), a needle head (5) is installed at the end of the needle tube (4) away from the connecting tube (3), a needle handle (6) is installed on the right side of the circumferential surface of the needle tube (4), and a connecting sleeve (7) is installed on the circumferential surface of the connecting tube (3), the connecting sleeve (7) is movably installed on the outside of the connecting tube (3), and the upper end of the connecting sleeve (7) is fixedly connected to the connecting tube (3). A protective sleeve (8) is connected, and a groove (9) is provided on the side of the circumferential surface of the protective sleeve (8) facing the needle handle (6). A fixing sleeve (10) is installed at the lower end of the connecting sleeve (7), and the fixing sleeve (10) is threadedly connected to the circumferential surface of the connecting tube (3). A limit block (11) is installed at the top of the fixing sleeve (10), and a movable groove (12) is provided inside the bottom end of the connecting sleeve (7). The limit block (11) is movably installed in the movable groove (12). A fixing clamp (13) is movably connected to the middle part of the circumferential surface of the infusion tube (1).

2. The intravenous infusion needle safety cover according to claim 1, characterized in that: Anti-slip grooves are provided on the upper and lower sides of the needle handle (6).

3. The intravenous infusion needle safety cover according to claim 1, characterized in that: The inner diameter of the connecting sleeve (7) is slightly larger than the outer diameter of the connecting pipe (3).

4. The intravenous infusion needle safety cover according to claim 1, characterized in that: The length of the protective sleeve (8) is greater than the length of the needle tube (4) and the needle (5), and the inner diameter of the protective sleeve (8) is greater than the outer diameter of the connecting tube (3).

5. The intravenous infusion needle safety cover according to claim 1, characterized in that: The height of the groove (9) is greater than the height of the needle handle (6).

6. The intravenous infusion needle safety cover according to claim 1, characterized in that: The size of the internal thread formed inside the fixing sleeve (10) is consistent with the size of the external thread formed on the circumferential surface of the connecting pipe (3).

7. The intravenous infusion needle safety cover according to claim 1, characterized in that: The size of the limiting block (11) is consistent with the size of the movable groove (12).

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