Novel retraction type anti-stabbing syringe

Abstract

The utility model discloses a novel retraction type anti-stabbing syringe, which comprises a main body unit, a needle cylinder, an inner cylinder arranged in the needle cylinder, the inner cylinder comprises a liquid storage cylinder and a connector, and a needle head and a protective sleeve are arranged on the connector; and the operation unit comprises a first connecting port. When a medical worker needs to take out a needle from the body of a patient after using an injector to inject liquid medicine, the rectangular block is pulled outwards and moved out of the second connecting opening in the lower end, the rectangular block is moved upwards, the rectangular block is loosened when the rectangular block is moved to the second connecting opening in the upper end, and the needle is taken out from the body of the patient. When the rectangular block moves upwards, the round rod drives the inner cylinder and the needle head to move upwards, the needle head moves out of the body of a patient and completely enters the needle cylinder, the phenomenon that medical workers are stabbed is avoided, and then potential harm caused by bacteria or viruses left on the needle head to the medical workers is avoided; and the use safety of the injector is improved.

Description

Technical Field

[0001] This utility model relates to the field of syringe technology, and in particular to a novel retractable anti-puncture syringe. Background Technology

[0002] A syringe is a commonly used medical device used to inject drugs or other liquids into the human body. It consists of a syringe barrel, piston, needle, and protective cap. One of the characteristics of syringes is their high precision, enabling accurate control of drug dosage. Syringes are typically available in different capacities, such as 1 ml, 2 ml, and 5 ml, to meet different dosage requirements. Furthermore, syringes are characterized by good sealing, ease of operation, and ease of cleaning.

[0003] When using existing syringes, medical staff are prone to needlestick injuries when re-coiling the needle. Bacteria or viruses remaining on the needle tip pose a potential hazard to medical staff and healthcare workers, necessitating improvements. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Therefore, the purpose of this utility model is to provide a novel retractable anti-puncture syringe, which aims to solve the problem that "when using existing syringes, medical staff are prone to needle pricks when operating the needle retraction device, and the bacteria or viruses remaining on the needle tip pose a potential hazard to medical staff, so improvements are needed".

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A novel retractable puncture-proof syringe includes:

[0008] The main unit includes a syringe, in which an inner cylinder is provided. The inner cylinder includes a liquid reservoir and a connector. The connector is provided with a needle and a protective sleeve.

[0009] The working unit includes a first connection port located on the side wall of a syringe. Two second connection ports are symmetrically located on the side wall of the syringe. A round rod is fixedly connected to the side wall of the liquid reservoir. A rectangular block is connected to the round rod and is located in the second connection port at the lower end. The round rod has a connecting groove, and a sliding plate is slidably connected to the connecting groove. A connecting shaft is fixedly connected to the sliding plate, and the end of the connecting shaft facing away from the sliding plate is fixedly connected to the rectangular block. A connecting component is provided on both the connector and the protective sleeve.

[0010] As a preferred embodiment of the novel retractable anti-puncture syringe of this utility model, the connecting assembly includes multiple arc-shaped plates, which are circumferentially fixedly connected to the protective sleeve at equal intervals. Each arc-shaped plate is fixedly connected to a connecting block. Multiple arc-shaped grooves are circumferentially opened at equal intervals on the connecting head, and each arc-shaped groove is provided with an inclined block.

[0011] As a preferred embodiment of the novel retractable anti-puncture syringe of this utility model, the connecting assembly further includes multiple moving rods and multiple second springs. Each arc-shaped groove has a sliding groove on its inner wall. Each inclined block is slidably connected to the inner wall of the sliding groove. Each moving rod is fixedly connected to the inclined block. The two ends of each second spring are respectively fixedly connected to the moving rod and the inner wall of the sliding groove.

[0012] In a preferred embodiment of the novel retractable anti-puncture syringe described in this utility model, the slide plate is fixedly connected to a No. 1 spring, and the end of the No. 1 spring facing away from the slide plate is fixedly connected to the inner wall of the connecting groove.

[0013] In a preferred embodiment of the novel retractable anti-puncture syringe described in this utility model, the connector is provided with a connecting rod, the upper end face of the syringe has a round opening, and the connecting rod passes through the upper end face of the connector and the round opening and is fixedly connected to a round plate.

[0014] In a preferred embodiment of the novel retractable anti-puncture syringe described in this utility model, a threaded block is fixedly connected to the connector, and a threaded groove matching the threaded block is provided on the liquid storage cylinder.

[0015] The beneficial effects of this utility model are:

[0016] 1. When medical staff need to remove the needle from the patient's body after injecting medication with a syringe, they should pull the rectangular block outwards. The rectangular block will move out of the second connection port at the bottom. Move the rectangular block upwards. When the rectangular block reaches the second connection port at the top, release the rectangular block. The rectangular block will then enter the second connection port at the top and lock in place. As the rectangular block moves upwards, it will drive the inner cylinder and the needle upwards through the round rod. The needle will be removed from the patient's body and completely enter the syringe. This avoids the possibility of pricking medical staff and prevents the potential harm to medical staff from bacteria or viruses remaining on the needle. This improves the safety of syringe use.

[0017] 2. After the needle is fully inserted into the syringe, insert the protective sleeve into the syringe and put it on the needle. The arc plate and connecting block enter the arc groove. When the connecting block moves, it presses against the inclined block to facilitate the connection between the connecting block and the arc groove. When the connecting block is fully inserted into the arc groove, the inclined block will lock the position of the connecting block. Rotating the protective sleeve will cause the connecting head to rotate at the point where the arc plate and connecting block are in contact with the inner wall of the arc groove, making it easy to remove the connecting head and then remove the needle for easy replacement of the used needle.

[0018] 3. When removing the protective sleeve from the needle, simply pull the protective sleeve with force. Because the inclined block is set at an angle, the connecting block can be squeezed when it moves outward. The inclined block slides into the groove, thus removing the protective sleeve from the needle. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of a novel retractable anti-puncture syringe proposed in this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of a novel retractable anti-puncture syringe proposed in this utility model when the needle protrudes.

[0022] Figure 3 This is a partial cross-sectional view of the syringe barrel of a novel retractable anti-puncture syringe proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the structure of the No. 1 and No. 2 connection ports in a novel retractable anti-puncture syringe proposed in this utility model.

[0024] Figure 5This is a partial cross-sectional view of the round rod in a novel retractable anti-puncture syringe proposed in this utility model.

[0025] Figure 6 An exploded view of the inner cylinder of a novel retractable anti-puncture syringe proposed in this utility model;

[0026] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0027] Figure 8 This is a partial cross-sectional view of the connector of a novel retractable anti-puncture syringe proposed in this utility model.

[0028] Figure 9 for Figure 8 Enlarged view of section B in the middle.

[0029] In the diagram: 100, main body unit; 101, syringe; 102, inner cylinder; 102-1, liquid reservoir; 102-2, connector; 103, connecting rod; 104, circular plate; 105, needle; 106, protective sleeve; 107, threaded block;

[0030] 200. Working unit; 201. Connection port 1; 202. Connection port 2; 203. Round rod; 204. Rectangular block; 205. Connecting shaft; 206. Slide plate; 207. Spring 1; 208. Connecting assembly; 208a. Arc plate; 208b. Connecting block; 208c. Inclined block; 208d. Moving rod; 208e. Spring 2. Detailed Implementation

[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0034] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0035] Reference Figure 1-9 This utility model provides a novel retractable anti-puncture syringe, comprising:

[0036] The main unit 100 includes a syringe 101, an inner cylinder 102 is provided in the syringe 101, the inner cylinder 102 includes a liquid storage cylinder 102-1 and a connector 102-2, and a needle 105 and a protective sleeve 106 are provided on the connector 102-2;

[0037] The operating unit 200 includes a primary connection port 201 located on the side wall of the syringe 101. Two secondary connection ports 202 are symmetrically located on the side wall of the syringe 101. A round rod 203 is fixedly connected to the side wall of the reservoir 102-1. A rectangular block 204 is connected to the round rod 203 and is positioned within the lower secondary connection port 202. The round rod 203 has a connecting groove in which a sliding plate 206 is slidably connected. A connecting shaft 205 is fixedly connected to the sliding plate 206, with one end of the connecting shaft 205 opposite to the sliding plate 206 fixedly connected to the rectangular block 204. A connecting assembly 208 is shared on the connector 102-2 and the protective sleeve 106. Medical personnel use the syringe to inject... When the medication is finished and the needle 105 needs to be removed from the patient's body, pull the rectangular block 204 outward. The rectangular block 204 moves out of the lower second connection port 202. Move the rectangular block 204 upward. When the rectangular block 204 moves to the upper second connection port 202, release the rectangular block 204. The rectangular block 204 enters the upper second connection port 202 and gets stuck. When the rectangular block 204 moves upward, it drives the inner cylinder 102 and the needle 105 upward through the round rod 203. The needle 105 is removed from the patient's body and completely enters the syringe 101, avoiding the occurrence of needle stick injuries to medical staff. This also avoids the potential harm to medical staff caused by residual bacteria or viruses on the needle 105, and improves the safety of syringe use.

[0038] The connecting assembly 208 includes multiple arc-shaped plates 208a, which are circumferentially fixedly connected to the protective sleeve 106 at equal intervals. Each arc-shaped plate 208a is fixedly connected to a connecting block 208b. Multiple arc-shaped grooves are circumferentially formed at equal intervals on the connecting head 102-2, and each arc-shaped groove contains a wedge block 208c. The connecting assembly 208 also includes multiple moving rods 208d and multiple second-order springs 208e. A sliding groove is formed on the inner wall of each arc-shaped groove, and each wedge block 208c is slidably connected to the inner wall of the sliding groove. Each moving rod 208d is fixedly connected to the wedge block 208c, and both ends of each second-order spring 208e are fixedly connected to the moving rod 208d and the inner wall of the sliding groove, respectively. After the needle 105 is fully inserted into the syringe 101, the protective sleeve 106 is inserted into the syringe 101 and placed over the needle 105. 208a and connecting block 208b enter the arc-shaped groove. When the connecting block 208b moves, it presses against the inclined block 208c to facilitate the connection between the connecting block 208b and the arc-shaped groove. When the connecting block 208b is fully inserted into the arc-shaped groove, the inclined block 208c locks the position of the connecting block 208b. Rotating the protective sleeve 106 causes the arc-shaped plate 208a and the connecting block 208b to rotate at the point where they contact the inner wall of the arc-shaped groove, making it easy to remove the connecting head 102-2. This allows the needle 105 to be removed for easy replacement after use. When removing the protective sleeve 106 from the needle 105, simply pull the protective sleeve 106. Because the inclined block 208c is inclined, it can press against the connecting block 208c when it moves outward. The inclined block 208c slides into the groove, allowing the protective sleeve 106 to be removed from the needle 105.

[0039] Furthermore, the slide plate 206 is fixedly connected to a first spring 207. The end of the first spring 207 away from the slide plate 206 is fixedly connected to the inner wall of the connecting groove. Under the action of the first spring 207, the rectangular block 204 can be retracted into the second connecting port 202.

[0040] Furthermore, a connecting rod 103 is provided in the connector 102-2, and a round opening is provided on the upper end face of the syringe 101. The connecting rod 103 passes through the upper end face and the round opening of the connector 102-2 and is fixedly connected to the round plate 104. Pulling and pushing the round plate 104 enables the syringe to work.

[0041] Furthermore, a threaded block 107 is fixedly connected to the connector 102-2, and a threaded groove matching the threaded block 107 is opened on the liquid storage cylinder 102-1. The connector 102-2 is installed on the liquid storage cylinder 102-1 through the threaded block 107.

[0042] When medical staff need to remove the needle 105 from the patient's body after administering medication using a syringe, they pull the rectangular block 204 outwards. The rectangular block 204 moves out of the lower second connection port 202. Moving the rectangular block 204 upwards, it moves to the upper second connection port 202 and is released, locking itself in place. As the rectangular block 204 moves upwards, it drives the inner cylinder 102 and the needle 105 upwards via the round rod 203. The needle 105 is then removed from the patient's body and fully inserted into the syringe 101, preventing needle pricks and avoiding potential harm from residual bacteria or viruses on the needle 105. This improves the safety of syringe use. After the needle 105 is fully inserted into the syringe 101, the protective sleeve 106 is inserted into the syringe 101 and placed over the needle 105. The arc-shaped plate 208a and connecting block 208b enter the arc-shaped groove. As the connecting block 208b moves, it presses against the inclined block 208c, facilitating the connection between the connecting block 208b and the arc-shaped groove. When the connecting block 208b is fully inside the arc-shaped groove, the inclined block 208c locks the connecting block 208b in place. Rotating the protective sleeve 106 allows the connecting head 102-2 to rotate at the points where the arc-shaped plate 208a and connecting block 208b contact the inner wall of the arc-shaped groove. Then remove the connector 102-2, and then remove the needle 105 for easy replacement of the used needle 105. When removing the protective sleeve 106 from the needle 105, simply pull the protective sleeve 106. Because the inclined block 208c is set at an angle, the connecting block 208b can squeeze 108c when it moves outward. The inclined block 208c slides in the groove, so the protective sleeve 106 can be removed from the needle 105.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A novel retractable anti-puncture syringe, characterized in that: include: The main unit (100) includes a syringe (101), in which an inner cylinder (102) is provided. The inner cylinder (102) includes a liquid storage cylinder (102-1) and a connector (102-2). A needle (105) and a protective sleeve (106) are provided on the connector (102-2). The working unit (200) includes a first connection port (201), which is located on the side wall of the syringe (101). Two second connection ports (202) are symmetrically located on the side wall of the syringe (101). A round rod (203) is fixedly connected to the side wall of the liquid storage cylinder (102-1). A rectangular block (204) is connected to the round rod (203). The rectangular block (204) is located in the second connection port (202) at the lower end. A connecting groove is provided on the round rod (203). A sliding plate (206) is slidably connected in the connecting groove. A connecting shaft (205) is fixedly connected to the sliding plate (206). One end of the connecting shaft (205) away from the sliding plate (206) is fixedly connected to the rectangular block (204). A connecting component (208) is provided on the connector (102-2) and the protective sleeve (106).

2. The novel retractable anti-puncture syringe according to claim 1, characterized in that: The connecting assembly (208) includes multiple arc-shaped plates (208a), which are circumferentially fixedly connected to the protective sleeve (106) at equal intervals. Each arc-shaped plate (208a) is fixedly connected to a connecting block (208b). Multiple arc-shaped grooves are circumferentially opened at equal intervals on the connecting head (102-2), and each arc-shaped groove is provided with an inclined block (208c).

3. A novel retractable anti-puncture syringe according to claim 2, characterized in that: The connecting assembly (208) also includes multiple moving rods (208d) and multiple second springs (208e). Each arc-shaped groove has a sliding groove on its inner wall. Each inclined block (208c) is slidably connected to the inner wall of the sliding groove. Each moving rod (208d) is fixedly connected to the inclined block (208c). The two ends of each second spring (208e) are respectively fixedly connected to the moving rod (208d) and the inner wall of the sliding groove.

4. A novel retractable anti-puncture syringe according to claim 1, characterized in that: The slide plate (206) is fixedly connected to a first spring (207), and the end of the first spring (207) away from the slide plate (206) is fixedly connected to the inner wall of the connecting groove.

5. A novel retractable anti-puncture syringe according to claim 1, characterized in that: The connector (102-2) is provided with a connecting rod (103), and the upper end face of the syringe (101) is provided with a round opening. The connecting rod (103) passes through the upper end face and the round opening of the connector (102-2) and is fixedly connected to a round plate (104).

6. A novel retractable anti-puncture syringe according to claim 1, characterized in that: A threaded block (107) is fixedly connected to the connector (102-2), and a threaded groove matching the threaded block (107) is opened on the liquid storage cylinder (102-1).

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