Needle head pricking block guiding pricking device

Abstract

The utility model relates to a needle head pricking block guiding pricking device which comprises a base, a bin cylinder, a guiding conical cylinder and a pricking block. The silo is located on the base and is of a cylindrical structure. An inlet groove and an outlet groove are formed in the silo; a lifting disc is arranged in an inner cavity of the bin cylinder and movably connected with the base through a spring. The guide conical cylinder is connected with one end, far away from the base, of the silo, and the guide conical cylinder is communicated with an inner cavity of the silo; the flaring end of the guide conical cylinder faces the direction far away from the silo; a lateral moving groove is formed in the guide conical cylinder; the binding block is located in the silo and is in a cylindrical shape. According to the needle head pricking block guiding pricking device, the structure is improved, the needle head of a used syringe can be pricked, and a part for protecting the needle head is designed to be detachable from the device main body, so that one syringe only corresponds to one part for protecting the needle head instead of the whole protection device, and the protection cost is reduced.

Description

Technical Field

[0001] The utility model relates to a needle protection device, in particular to a needle pricking block guide inserter. Background Art

[0002] After the syringe is used, the needle tip is exposed. If the needle cap is put back on the needle, the needle tip may easily prick your hand during the process. If the needle cap is not put back on and the syringe is discarded directly, the needle tip may easily pierce the medical waste collection bag or the hands of medical waste disposal personnel.

[0003] Existing technologies, such as the Chinese utility model patent with publication number CN215937380U and name: "Blood gas needle protection device", record the following technical solution: "The blood gas needle protection device includes at least a needle cap and a placement cavity. The needle cap can be cylindrical. The placement cavity is arranged on the needle cap. The shape of the cross section of the placement cavity can be defined by a polygon. The extension direction of the placement cavity is roughly parallel to the axial direction of the needle cap. When the placement cavity is connected to the first end of the needle cap, a latex block is provided at the second end of the needle cap. When the blood gas needle is nested in the placement cavity, the blood gas needle can penetrate the latex block. A through hole is provided on the needle cap, and the extension direction of the through hole is roughly perpendicular to the extension direction of the placement cavity, wherein the through hole is connected to the placement cavity. A clamping body is provided in the through hole, and the clamping body can abut against and contact the blood gas needle."

[0004] The latex block of the above solution is soft and easy to puncture; at the same time, the latex block is completely set in the needle cap and isolated by the needle cap. Even if too much force is used, the blood gas needle will not pierce the latex block and injure the hands of medical staff.

[0005] While the above solution can provide piercing protection for the needle tip of a syringe needle, the overall structure of the protective device must be compatible with the syringe to achieve protection. Therefore, when the protective device is discarded along with the syringe, each syringe will have a corresponding complete protective device, which will become medical waste. This leads to the problem of high protective device consumption and high protection costs. Utility Model Content

[0006] The purposes of this utility model are:

[0007] A needle block guide inserter is designed and structurally improved to allow the needle of a used syringe to be inserted. The protective needle component is designed to be detachable from the device body, so that one syringe only corresponds to one protective needle component rather than the entire protective device, reducing protection costs.

[0008] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0009] A needle piercing block guide inserter comprises a base, a magazine, a guide cone and a piercing block; the magazine is located on the base and has a cylindrical structure; an inlet slot and an outlet slot are provided on the magazine; a lifting plate is provided in the inner cavity of the magazine, and the lifting plate is movably connected to the base via a spring; the guide cone is connected to the end of the magazine away from the base, and is communicated with the inner cavity of the magazine; the flared end of the guide cone faces in a direction away from the magazine; a side shift groove is provided on the guide cone; the piercing block is located in the magazine and has a cylindrical shape.

[0010] Furthermore, the silo is arranged vertically, and the central axis of the guide cone is coaxial with the central axis of the silo.

[0011] Furthermore, a retaining ring is provided on the top of the silo, and the end with a smaller diameter of the guide cone is connected to the center hole of the retaining ring.

[0012] Furthermore, the diameter of the smaller end of the guide cone is smaller than the diameter of the silo.

[0013] Furthermore, the lateral displacement groove is located on the side of the guide cone, and the lateral displacement groove extends along the generatrix direction of the guide cone.

[0014] Furthermore, the inlet groove is a through groove and is located at the lower part of the silo side wall, and the outlet groove is a through groove and is located at the upper part of the silo side wall; the outlet groove is connected to the side displacement groove.

[0015] Furthermore, the lifting plate is in the shape of a disc and its diameter is loosely matched with the inner diameter of the silo; and the spring is a coil spring.

[0016] Furthermore, the diameter of the tying block is smaller than the inner diameter of the silo; the tying block includes a tying portion and a blocking portion, and the tying portion is located above the blocking portion.

[0017] The beneficial effects of the utility model are:

[0018] A needle piercing block guide inserter has an improved structure. Through the coordinated use of a base, a magazine, a lifting plate, a spring, a guide cone and a piercing block, the guide cone can cause the needle of a used syringe to be inserted into the piercing block, and blocking protection of the needle tip can be achieved only by the piercing block. In addition, the piercing block for protecting the needle is designed to be detachable from the device body. After the needle is inserted into the piercing block, the piercing block can be removed together with the needle, so that one syringe only corresponds to one needle protection component, rather than the entire protection device. Since the cost of a single piercing block is relatively low, the protection cost is reduced, which is conducive to large-scale promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a three-dimensional diagram of the overall structure of a needle piercing block guide inserter of the present invention.

[0020] Figure 2 This is a stereoscopic diagram of the overall structure of the needle pricking block guide inserter of the present invention from another perspective.

[0021] Figure 3 This is a partial structural diagram of a needle piercing block guide inserter of the present invention after the needle has been inserted into the piercing block and before it is removed.

[0022] Figure 4 This is a structural cross-sectional view of a needle piercing block guide inserter of the present invention after the needle has been inserted into the piercing block and removed.

[0023] The accompanying drawings are:

[0024] 1. Base; 2. Warehouse; 21. Retaining ring; 3. Lifting plate; 4. Spring; 5. Inlet slot; 6. Outlet slot; 7. Guide cone; 8. Side shift slot; 9. Piercing block; 91. Piercing part; 92. Blocking part. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] refer to Figures 1 to 4 A needle piercing block guide inserter comprises a base 1, a magazine 2, a guide cone 7 and a piercing block 9; the needle can be inserted into the piercing block 9, so that the piercing block 9 forms a wrapped protection for the needle.

[0027] The silo 2 is located on the base 1 and has a cylindrical structure. The silo 2 is used to accommodate the lumps 9 and provide guidance for the lifting and lowering movement of the lumps 9 .

[0028] An inlet slot 5 and an outlet slot 6 are provided on the silo 2 ; the inlet slot 5 is used for allowing the bundled blocks 9 to be placed into the silo 2 ; the outlet slot 6 is used for allowing the bundled blocks 9 to be moved out of the silo 2 .

[0029] A lifting plate 3 is provided within the interior of the silo 2 and is movably connected to the base 1 via a spring 4. The spring 4 presses against the bottom of the lifting plate 3 to apply a vertical upward force to the lifting plate 3. The lifting plate 3 is used to lift the bundle 9.

[0030] The guide cone 7 is connected to the end of the barrel 2 away from the base 1, and the guide cone 7 is communicated with the inner cavity of the barrel 2; the guide cone 7 is used to provide guidance for the needle tip during the downward movement of the needle to ensure that the needle tip is smoothly inserted into the inner cavity of the barrel 2.

[0031] The flared end of the guide cone 7 faces away from the silo 2, thereby forming a guiding structure.

[0032] A lateral displacement groove 8 is provided on the guide cone 7, which is used to allow the needle tip to move out laterally after the needle tip is inserted into the piercing block 9, so as to avoid interference with the needle structure and inability to move out; the piercing block 9 is located in the magazine 2, and the piercing block 9 is cylindrical, and the radius of the piercing block 9 is greater than the outer diameter of the needle.

[0033] The silo 2 is arranged vertically, and the central axis of the guide cone 7 is coaxial with the central axis of the silo 2, which is conducive to alignment and insertion.

[0034] A baffle ring 21 is provided at the top of the silo 2. The smaller diameter end of the guide cone 7 is connected to the center hole of the baffle ring 21. The diameter of the center hole is smaller than the diameter of the silo 2. The center hole is used for the needle tip to pass through. The baffle ring 21 can form an upper limit for the piercing block 9.

[0035] The diameter of the smaller end of the guide cone 7 is smaller than the diameter of the magazine 2, thereby forming an inclined generatrix, which is beneficial for guiding the needle.

[0036] The lateral displacement groove 8 is located on the side of the guide cone 7 , and the lateral displacement groove 8 extends along the generatrix direction of the guide cone 7 . The lateral displacement groove 8 is vertically arranged as a whole.

[0037] The inlet groove 5 is a through groove and is located at the lower part of the side wall of the silo 2, and the outlet groove 6 is a through groove and is located at the upper part of the side wall of the silo 2; the outlet groove 6 is connected to the side displacement groove 8, so that the needle and the piercing block 9 can be moved out together.

[0038] The lifting plate 3 is disc-shaped and its diameter is loosely matched with the inner diameter of the silo 2, ensuring that the lifting plate 3 can be smoothly lifted and slid in the inner cavity of the silo 2; the spring 4 is a coil spring, and the spring 4 is specifically in a compressed state.

[0039] The diameter of the piercing block 9 is smaller than the inner diameter of the barrel 2. The piercing block 9 comprises a piercing portion 91 and a blocking portion 92, with the piercing portion 91 positioned above the blocking portion 92. The piercing portion 91 can be made of soft rubber or silicone, making it easy for a needle to penetrate. The blocking portion 92 is used to prevent the needle from piercing the piercing block 9 and is made of a hard metal, such as iron. This arrangement keeps the cost of a single piercing block 9 manageable and low.

[0040] The axial length of the tying block 9 can be designed according to actual conditions. Similarly, the lengths of the inlet slot 5 and the outlet slot 6 need to be compatible with the axial length of the tying block 9, that is, slightly larger than the axial length of the tying block 9, so that the tying block 9 can be placed in and removed.

[0041] In the cartridge 2, at most 2-3 piercing blocks 9 can be placed along the axial direction, so that after a plurality of piercing blocks 9 are placed at one time, the needles of the same number of syringes can be inserted.

[0042] The working principle of this utility model is:

[0043] After the syringe is used, the needle tip is exposed. If the needle cap is put back on the needle, the needle tip may easily prick your hand during the process. If the needle cap is not put back on and the syringe is discarded directly, the needle tip may easily pierce the medical waste collection bag or the hands of medical waste disposal personnel.

[0044] At this time, you can put your finger into the entrance groove 5 on the side of the silo 2, move the spring 4 or the lifting plate 3 downward until the lifting plate is lower than the entrance groove 5; then insert the tying block 9 from the entrance groove 5 sideways into the silo 2.

[0045] Under the elastic force of the spring 4 , the lifting plate 3 pushes the tying block 9 upward until the top of the tying block 9 abuts against the retaining ring 21 .

[0046] The needle of the syringe that has been used can now be directed downwards, aligned with the guide cone 7, and then moved downwards. During the downward movement, the inner bevel of the guide cone 7 can guide the needle until the needle passes through the central hole of the retaining ring 21 and penetrates into the piercing block 9.

[0047] Since the insertion portion 91 of the piercing block 9 is made of soft rubber and the needle tip is thin, the contact area between the needle tip and the insertion portion 91 is small, that is, the friction force of the needle tip piercing the insertion portion 91 of the piercing block 9 is smaller than the elastic force of the spring 4, thus ensuring that the needle tip can be smoothly inserted into the insertion portion 91. Figure 3 The posture shown.

[0048] Since the blocking portion 92 of the piercing block 9 is made of an iron sheet with a high hardness, the needle tip cannot penetrate the piercing block 9, thereby preventing the needle tip from piercing the piercing block 9 and providing a wrapping protection for the needle tip, thereby preventing the needle tip from piercing the hand. Figure 4 shown.

[0049] Finally, the syringe is moved sideways, and the needle drives the piercing block 9 to move sideways; the needle passes through the lateral displacement groove 8, and the piercing block 9 moves sideways out of the outlet groove 6 on the barrel 2. After moving out, the piercing block 9 is still located on the needle tip, thereby achieving protection.

[0050] The above embodiments are used to further illustrate the present invention, but do not limit the present invention to these specific embodiments. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention should be understood to be within the scope of protection of the present invention.

Claims

1. A needle block guide inserter, characterized by: The invention comprises a base (1), a silo (2), a guide cone (7) and a tying block (9); the silo (2) is located on the base (1) and is in a cylindrical structure; an inlet groove (5) and an outlet groove (6) are provided on the silo (2); a lifting plate (3) is provided in the inner cavity of the silo (2), and the lifting plate (3) is movably connected to the base (1) through a spring (4); the guide cone (7) is connected to an end of the silo (2) away from the base (1), and the guide cone (7) is communicated with the inner cavity of the silo (2); the flared end of the guide cone (7) faces in a direction away from the silo (2); and a side shift groove (8) is provided on the guide cone (7); The tying block (9) is located in the silo (2), and the tying block (9) is cylindrical.

2. A needle block guide inserter according to claim 1, characterized in that: The silo (2) is arranged vertically, and the central axis of the guide cone (7) is coaxial with the central axis of the silo (2).

3. The needle block guide inserter according to claim 2, characterized in that: A retaining ring (21) is provided on the top of the silo (2), and the smaller diameter end of the guide cone (7) is connected to the center hole of the retaining ring (21).

4. The needle block guide inserter according to claim 3, characterized in that: The diameter of the smaller end of the guide cone (7) is smaller than the diameter of the silo (2).

5. A needle block guide inserter according to any one of claims 1 to 4, characterized in that: The side shift groove (8) is located on the side of the guide cone (7), and the side shift groove (8) extends along the generatrix direction of the guide cone (7).

6. The needle block guide inserter according to claim 5, characterized in that: The inlet groove (5) is a through groove and is located at the lower part of the side wall of the silo (2); the outlet groove (6) is a through groove and is located at the upper part of the side wall of the silo (2); the outlet groove (6) is connected to the side displacement groove (8).

7. The needle block guide inserter according to claim 6, characterized in that: The lifting disc (3) is disc-shaped and its diameter is in clearance fit with the inner diameter of the silo (2); the spring (4) is a coil spring.

8. The needle block guide inserter according to claim 7, characterized in that: The diameter of the tying block (9) is smaller than the inner diameter of the silo (2); the tying block (9) comprises a tying portion (91) and a blocking portion (92), and the tying portion (91) is located above the blocking portion (92).

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