A new needle dismounting device

Abstract

The utility model discloses a novel needle dismounting device relates to medical instrument technical field, the needle dismounting device includes the handle of inside fixed guide rod, the guide rod is elastically connected with the push block that can be in its own linear sliding, and the push block is blocked through the stop portion of the guide rod outside setting of the snap ring up and down activity, and the needle cover of handle front end spigot joint is mutually abuts with the push block, when the needle is inserted the needle cover, rotates the handle to make needle and syringe separate each other, when the stop portion of snap ring is separated from the push block, and the push block can push needle cover and needle and pop out outward. Compared with the prior art, the design not only can improve the security of operator dismounting needle, but also can directly pop out needle to sharp instrument box through the key on handle.

Description

Technical Field

[0001] This utility model relates to a disassembly device, and more particularly to a novel needle disassembly device, belonging to the field of medical device technology. Background Technology

[0002] Bilan injection is a commonly used anesthetic drug in dental clinics. After the procedure is completed, the needle needs to be removed from the syringe. However, the removal process may result in the needle accidentally pricking the operator. A search revealed that patent publication number "CN220309527U" also points out this problem and discloses a device for removing the needle from a Bilan syringe.

[0003] Similarly, the applicant has designed a novel needle removal device and has filed the following application. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present invention provides a novel needle removal device.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a novel needle disassembly device, comprising a handle with a guide rod fixed inside, the guide rod being elastically connected to a push block that can slide linearly on its own, a retaining ring being disposed on the outside of the guide rod and blocking the push block through its stop portion, and a needle cap inserted into the front end of the handle abutting against the push block; when the needle is inserted into the needle cap, rotating the handle can separate the needle from the syringe, and when the stop portion of the retaining ring disengages from the push block, the push block can push the needle cap and the needle outward.

[0006] Preferably, the handle is provided with a button on the outside that is fixedly connected to the retaining ring. Pressing the button can drive the retaining ring, which is elastically disposed inside the handle, to move up and down.

[0007] Preferably, the push block with an opening slot at the front end of the sliding insertion guide rod has a backing plate formed in its middle, and the needle cover and the backing plate of the push block abut against each other.

[0008] Preferably, the pusher block has a conical hole formed in the center of the abutment plate, and the end of the needle cap has a protrusion that matches the conical hole.

[0009] Preferably, the retaining ring has an actuating ramp at its stop portion, allowing the push block to drive the retaining ring downwards via the actuating ramp of the stop portion.

[0010] Preferably, the handle corresponding to the retaining ring is further provided with a limiting area formed by a plurality of protrusions.

[0011] Preferably, the handle also forms a perforated grid at the front end of the socket.

[0012] Preferably, the front end of the handle is further fitted with a ring sleeve having a protective disc.

[0013] This utility model has at least the following advantages:

[0014] 1. It can improve the safety of needle removal and prevent operators from being pricked;

[0015] 2. Pressing the button will eject the needle cap and needle into the sharps container. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 yes Figure 1 A side view diagram.

[0018] Figure 3 This is a diagram showing the installation of the retaining ring.

[0019] Figure 4 This is an internal schematic diagram of the present invention.

[0020] Figure 5 This is a schematic diagram of the push block installation.

[0021] Figure 6 This is a schematic diagram of the needle cap structure.

[0022] In the diagram, 1-handle; 101-button; 102-protrusion; 103-top block; 104-grid plate; 2-guide rod; 201-support rod; 3-push block; 301-push block spring; 302-button plate; 312-conical hole; 303-lug; 4-ring; 401-stop part; 402-ring spring; 5-ring; 501-protecting plate; 6-needle cover; 601-protrusion. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1-6As shown: A novel needle removal device includes a handle 1, which is formed by the relative splicing of an upper shell and a lower shell to form an inner cavity. A guide rod 2 is fixed in the inner cavity. A push block 3 slidably sleeved on the guide rod 2 abuts against a needle cap 6 inserted at the front end of the handle 1. After the syringe needle is inserted into the needle cap 6, the needle can be separated from the syringe by rotating the handle 1. If the button 101 on the handle 1 is pressed, the push block 3 can push the needle cap 6 and the needle outward and eject them.

[0025] Furthermore, the aforementioned push block 3 is elastically connected to the guide rod 2 via the push block spring 301, thereby enabling it to slide elastically on the guide rod 2. Simultaneously, a retaining ring 4 located on the periphery of the push block 3 is movably disposed inside the handle 1 via a retaining ring spring 402, with its top end fixed to the button 101 of the handle 1. The retaining ring 4 has at least one stop portion 401 that can cooperate with the push block 3, so as to compress the push block spring 301 to achieve the positioning of the push block 3.

[0026] Specifically, the aforementioned guide rod 2 is close to a cuboid design, and its opening slot divides its front end into two support rods 201. The aforementioned push block 3 slides into the guide rod 2 from the opening slot, and its middle abutment plate 302 can abut against the end of the needle cover 6 so as to push it. Of course, in order to concentrate the pushing force, the abutment plate 302 can also have a conical hole 312 in the center, and the needle cover 6 has a corresponding protrusion 601 to match the conical hole 312.

[0027] Specifically, the stop portion 401 of the aforementioned retaining ring 4 forms an actuating ramp. Under normal conditions, the stop portion 401 abuts against the lug 303 of the push block 3 to stabilize the push block 3. When the ejected push block 3 is pushed inward by the needle cover 6, the actuating ramp of the stop portion 401 can cooperate with the lug 303 of the push block 3 to control the retaining ring 4 to move downward. After the push block 3 passes the retaining ring 4, the retaining ring 4 can be reset upward to abut against the limit position again.

[0028] Specifically, the handle 1 has a limiting area formed by several protrusions 102 inside it. The limiting area is used to restrict the retaining ring 4 to move only up and down and not to shift in other directions.

[0029] Specifically, the handle 1 is provided with a top block 103 for engaging with the push block 3. The top block 103 has a spring-back function and is fixedly connected to the button 101. When the push block 3 is stopped by the stop part 401 of the retaining ring 4, the top block 103 can simultaneously abut against the top surface of the push block 3 to improve the stability of the push block 3 at this time.

[0030] Furthermore, such as Figure 2As shown, the upper and lower shells used to assemble the handle 1 have semi-circular baffles at their front ends. When the two are assembled, the baffles can form a ring-shaped grid 104. The needle cap 6 is similar in shape to a needle tip. Its front end can pass through the opening of the grid 104 and abut against the push block 3, while its rear end is blocked by the grid 104. It should be noted that in order to prevent the needle cap 6 from falling off the handle 1 for no reason, the size of the insertion port of the handle 1 should be slightly smaller than the rear end of the needle cap 6 so that the needle cap 6 can be tightly inserted.

[0031] Furthermore, after the upper and lower shells are assembled into the handle 1, a collar 5 is also fitted at the front end for fixation. A protective disc 501 is formed around the collar 5. The protective disc 501 can prevent the operator from accidentally puncturing the needle due to hand tremors when inserting the needle into the handle 1.

[0032] The procedure for using this design is as follows: First, insert the matching needle cap into the handle, causing the push block to slide backward and be temporarily stopped by the retaining ring; second, insert the syringe needle with the needle tip facing the handle, so that the base of the needle tip is engaged and fixed with the rear end of the needle cap; then, rotate the handle to disengage the needle tip from the syringe, at which point the needle tip is now inside the needle cap; finally, press the button on the handle, and the push block will eject the needle cap and needle tip outward, allowing them to fall into the sharps container.

[0033] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A novel needle removal device, characterized in that: The device includes a handle (1) with a guide rod (2) fixed inside. The guide rod (2) is elastically connected to a push block (3) that can slide linearly on its own. A retaining ring (4) is set on the outside of the guide rod (2) and stops the push block (3) through its stop part (401). The needle cap (6) inserted into the front end of the handle (1) abuts against the push block (3). When the needle is inserted into the needle cap (6), rotating the handle (1) can separate the needle from the syringe. When the stop part (401) of the retaining ring (4) disengages from the push block (3), the push block (3) can push the needle cap (6) and the needle outward.

2. The novel needle removal device as described in claim 1, characterized in that: The handle (1) is provided with a button (101) fixedly connected to the retaining ring (4) on the outside. Pressing the button (101) can drive the retaining ring (4) elastically disposed inside the handle (1) to move up and down.

3. The novel needle removal device as described in claim 1, characterized in that: The push block (3) with the opening slot at the front end of the sliding insertion guide rod (2) has a stop plate (302) formed in its middle, and the needle cover (6) and the stop plate (302) of the push block (3) abut against each other.

4. A novel needle removal device as described in claim 3, characterized in that: The pusher (3) has a cone hole (312) formed in the center of the abutment (302), and the end of the needle cover 6 is fitted with a protrusion (601) to match the cone hole (312).

5. A novel needle removal device as described in claim 1, characterized in that: The retaining ring (4) has an actuation ramp in its stop portion (401), and the push block (3) can drive the retaining ring (4) to move downward through the actuation ramp of the stop portion (401).

6. A novel needle removal device as described in claim 1, characterized in that: The handle (1) is also provided with a limiting area formed by a number of protrusions (102) corresponding to the retaining ring (4).

7. A novel needle removal device as described in claim 1, characterized in that: The handle (1) also forms a perforated grid (104) at the front end of the socket.

8. A novel needle removal device as described in any one of claims 1-7, characterized in that: The handle (1) is also fixedly fitted with a ring (5) having a protective disc (501) at the front end.

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