Needle tube sealing cap removing device

Abstract

The utility model discloses a needle tube sealing cap removing device which comprises a supporting part and a removing assembly, the removing assembly is located on the supporting part, the removing assembly comprises a limiting cavity and flexible fixing teeth, the fixing teeth are located on the inner wall of the limiting cavity and protrude towards the interior of the limiting cavity, and the fixing teeth are located on the inner wall of the limiting cavity and protrude towards the interior of the limiting cavity. The sealing cap can be inserted into the removal assembly. The operation that a mechanical arm is adopted for removing the sealing caps is avoided, and removing of the sealing caps of different specifications can be completed.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a device for removing a needle tube sealing cap. Background Art

[0002] The syringe is a common liquid storage container, and its outlet end is usually equipped with a "sealing cap" to prevent the liquid material from volatilizing and leaking during storage. However, this "sealing cap" brings complexity to the automated pipetting process. During the automated pipetting process, the robotic arm not only needs to complete the actions of grabbing, moving, and injecting the syringe, but also needs to add the action of opening the "sealing cap". The action of opening the "sealing cap" requires precise coordination of the two robotic arms, which makes the manufacturing cost of the equipment relatively high. At the same time, due to the various specifications of syringes, the different sizes of sealing caps, and the different sealing gaps, it is difficult for existing sealing cap removal devices to remove the sealing caps of different syringes. Summary of the Invention

[0003] In order to solve the problems existing in the prior art, the present application provides a needle tube sealing cap removal device.

[0004] In this application, the removal device is used to remove the sealing cap from the needle tube. The sealing cap and the needle tube are placed on the removal device, and the sealing cap is fixed by the removal device. When the needle tube is taken out for use, the sealing cap is removed from the needle tube and remains in the removal device, thereby achieving the removal of the sealing cap.

[0005] In this application, the direction from the needle to the sealing cap is defined as downward. Similarly, the direction from the needle-fixing portion to the sealing cap on the removal device is defined as downward. The opposite direction is defined as upward. That is, the sealing cap is located below the needle, and the removal assembly is located below the fixing portion.

[0006] The specific technical solutions of this application are as follows:

[0007] 1. A needle tube sealing cap removal device, wherein the removal device comprises a support portion and a removal component, wherein the removal component is located on the support portion,

[0008] The removal assembly includes: a defined cavity and flexible fixing teeth, wherein the fixing teeth are located on the inner wall of the defined cavity and protrude toward the interior of the defined cavity, and the sealing cap can be inserted into the removal assembly.

[0009] 2. The removal device according to item 1, wherein the direction of the fixed teeth is parallel to the surface defining the cavity opening, or extends obliquely downward.

[0010] 3. The removal device according to item 1, wherein the lengths of the fixing teeth in a direction perpendicular to the surface defining the opening of the cavity are different, and the lengths of the fixing teeth are shorter as they are farther away from the opening defining the cavity.

[0011] 4. The removal device according to item 1, wherein the fixing teeth include cylindrical, conical or plate shapes.

[0012] 5. The removal device according to item 1, wherein the confining cavity has a lower opening.

[0013] 6. The removal device according to item 1, wherein the removal device further comprises a receiving groove, wherein the receiving groove is located below the supporting portion and is used to receive the removed sealing cap.

[0014] 7. The removal device according to item 6, wherein the receiving groove is detachably connected to the support portion.

[0015] 8. The removal device according to item 1, wherein there is more than one removal component.

[0016] 9. The removal device according to item 1, wherein the removal device further comprises a fixing portion, the fixing portion is connected to the top of the supporting portion, the fixing portion has one or more openings, and the openings are located directly above the opening on the defining cavity.

[0017] 10. The removal device according to item 9, wherein the diameter of the opening is such that a needle can pass through.

[0018] Beneficial effects

[0019] The present application provides a novel device for removing the sealing cap of a syringe, which avoids the operation of removing the sealing cap by a mechanical arm and simplifies the mechanical operation.

[0020] Furthermore, the needle tube sealing cap removal device provided in the present application can remove sealing caps of different specifications.

[0021] Furthermore, the needle tube sealing cap removal device provided in the present application can collect the removed sealing caps into a receiving groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the overall structural diagram of the removal device of this application;

[0023] Figure 2 It is a cross-sectional view of the removal device of this application.

[0024] In the figure, 010, fixing part; 011, opening; 020, supporting part; 021, limiting cavity; 022, fixing teeth; 040, needle tube; 041, sealing cap; 050, receiving groove. DETAILED DESCRIPTION

[0025] The present application is described in detail below. Although specific embodiments of the present application are shown, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0026] It should be noted that certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that technicians may use different nouns to refer to the same component. This specification and claims do not use the difference in nouns as a way to distinguish components, but use the difference in the functions of the components as the criterion for distinction. As mentioned throughout the specification and claims, "including" or "comprising" are open-ended terms and should be interpreted as "including but not limited to". The subsequent description of the specification is a preferred embodiment of the present application, but the description is based on the general principles of the specification and is not intended to limit the scope of the present application. The scope of protection of this application shall be as defined by the attached claims.

[0027] refer to Figure 1 and Figure 2 The present application provides a needle tube sealing cap removal device. The removal device includes a support portion 020 and a removal component, the removal component is located on the support portion 020,

[0028] refer to Figure 2 The removal component includes: a limiting cavity 021 and a flexible fixing tooth 022. The fixing tooth 022 is located on the inner wall of the limiting cavity 021 and protrudes into the inside of the limiting cavity 021. The sealing cap 041 can be inserted into the removal component.

[0029] refer to Figure 2 The sealing cap 041 is fixed at the head end of the needle tube 040 , and the removal device is used to remove the sealing cap 041 from the needle tube 040 .

[0030] refer to Figure 2 The support portion 020 is used to fix the removal component, and the removal component is fixedly installed on the support portion 020.

[0031] refer to Figure 2 The support portion 020 is provided with a hole for placing and fixing the removal component. The removal component is fixed in the hole.

[0032] In a specific embodiment, the defining cavity 021 and the supporting portion 020 are integrally formed, and the fixing teeth 022 are fixedly connected to the defining cavity 021 .

[0033] In a specific embodiment, the defining cavity 021 is fixedly connected to the support portion 020 , and the defining cavity 021 is fixed in a hole on the support portion 020 . The defining cavity 021 and the fixing tooth are integrally formed.

[0034] refer to Figure 2 After the support portion 020 secures the removal assembly, the sealing cap 041 is placed in the removal assembly, which then engages the sealing cap 041. The needle tube 040 is then moved upward to remove the sealing cap 041 from the needle tube 040. The defined cavity 021 is formed by the hole in the support portion 020. To remove the sealing cap 041, place it in the defined cavity 021.

[0035] refer to Figure 1 and Figure 2 When the sealing cap 041 enters the removal assembly, it will abut against the flexible fixing teeth 022. The flexible fixing teeth 022 have a certain flexibility, so the fixing teeth 022 can bend and generate a certain elastic force, so that the fixing teeth 022 are tightly abutted against the sealing cap 041.

[0036] refer to Figure 1 and Figure 2 When the sealing cap 041 enters, a certain elastic deformation will occur, so that the sealing cap 041 can enter between the flexible fixing teeth 022, and after the sealing cap 041 enters the removal component, the flexible fixing teeth 022 will be deformed and there will be an elastic force between the sealing cap 041, so that the flexible fixing teeth 022 are tightly against the outer peripheral surface of the sealing cap 041.

[0037] refer to Figure 1 and Figure 2 Furthermore, when the needle tube 040 is taken or moved, the sealing cap 041 is fixed by the fixing teeth 022, so that the sealing cap 041 is separated from the needle tube 040. Therefore, the needle tube 040 that is taken or moved is the needle tube 040 with the sealing cap 041 removed.

[0038] refer to Figure 2 The fixing teeth 022 are parallel to the opening surface of the cavity 021 or extend obliquely downward. The root of the fixing teeth 022 is located and fixed on the inner wall of the cavity 021.

[0039] When the fixing teeth 022 abut against the sealing cap 041, the top of the fixing teeth 022 contacts the sealing cap 041. As the sealing cap 041 continues to enter the removal assembly, the sealing cap 041 squeezes and deforms the fixing teeth 022, thereby tightly abutting the fixing teeth 022 against the sealing cap 041. When the needle tube 040 is pulled upward, the sealing cap 041 is squeezed and fixed by the fixing teeth 022 and remains in the removal assembly, thereby achieving the purpose of removing the sealing cap 041 from the needle tube 040.

[0040] refer to Figure 1 and Figure 2 When the sealing cap 041 is removed from the needle tube 040, the needle tube 040 needs to be pulled upward, and the sealing cap 041 will also tend to move upward, so the fixing teeth 022 will be subjected to an upward friction force. The fixing teeth 022 extending obliquely downward can offset some of the upward friction force on the sealing cap 041 in the vertical direction, thereby increasing the stability of the sealing cap 041 when it is removed from the needle tube 040.

[0041] In one specific embodiment, when the orientation of the fixed teeth 022 is parallel to the opening of the cavity 021, the contact points of the fixed teeth 022 with the inner wall of the cavity 021 are more regular and uniform, making the manufacturing of the fixed teeth 022 easier. Furthermore, when the fixed teeth 022 are installed on the inner wall of the cavity 021, it is more convenient to position them parallel to the opening than to position them tilted downward. Therefore, positioning the fixed teeth 022 parallel to the opening of the cavity 021 can effectively reduce the processing and manufacturing costs of the fixed teeth 022.

[0042] In one embodiment, the fixed teeth 022 are arranged to extend downwardly at an angle. A certain angle is formed between the fixed teeth 022 and the opening surface of the cavity 021. Furthermore, the angle between the fixed teeth 022 and the opening surface of the cavity 021 is 0 to 80 degrees. Specifically, the angle between the fixed teeth 022 and the opening surface of the cavity 021 is 0 degrees, 2 degrees, 4 degrees, 5 degrees, 6 degrees, 8 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees, 65 degrees, 70 degrees, 75 degrees, and 80 degrees.

[0043] refer to Figure 1 and Figure 2 There are multiple fixed teeth 022, and the fixed teeth 022 are regularly arranged in an array inside the limiting cavity 021.

[0044] Specifically, the fixed teeth 022 are arranged in a matrix on the inner wall of the defined cavity 021. Since the defined cavity 021 is a columnar or cylindrical structure, its inner wall is annular. The fixed teeth 022 are fixed to the inner wall of the defined cavity 021 in an annular matrix.

[0045] refer to Figure 1 and Figure 2 , the number of rows of the fixed teeth 022 arranged in a matrix in the vertical direction is at least 2; specifically, the number of layers of the fixed teeth 022 arranged in the vertical direction is: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.

[0046] The number of columns of the fixed teeth 022 arranged in a matrix in the horizontal direction is at least 2. Specifically, the number of fixed teeth 022 included in each layer in the horizontal direction is: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40.

[0047] The material of the fixed teeth 022 is a thermoplastic material. Preferably, the material of the fixed teeth 022 is polypropylene or PET.

[0048] refer to Figure 2 The lengths of the fixing teeth 022 in a direction perpendicular to the opening of the confining cavity 021 vary, with the lengths of the fixing teeth 022 decreasing as they are further away from the upper opening of the confining cavity 021. When the sealing cap 041 enters the confining cavity 021 from above the removal device, the fixing teeth 022 near the upper opening of the confining cavity preferentially elastically secure to the sealing cap 041. When the needle tube 040 moves upward to remove the sealing cap 041, the fixing teeth 022 prevent the sealing cap 041 from moving upward with the needle tube 040, thereby removing the sealing cap 041 from the needle tube 040.

[0049] When the sealing cap 041 enters the confining cavity 021 from above, the upper fixing teeth 022 will elastically secure the sealing cap 041, and then the lower fixing teeth 022 will gradually contact the sealing cap 041 and elastically deform to secure the sealing cap 041. At this time, the force between the fixing teeth 022 and the sealing cap 041 will become huge due to the layered superposition. Therefore, it is difficult for the sealing cap 041 to move downward between the fixing teeth 022, resulting in difficulty for the sealing cap 041 to fully enter the confining cavity 021. Therefore, the length of the lower fixing teeth 022 is set to be shorter to reduce the force exerted by the fixing teeth 022 at the lower position on the sealing cap 041, making it easier for the fixing teeth 022 to be placed in the confining cavity 021. As a result, the length of the fixing teeth 022 farther away from the upper opening of the confining cavity 021 gradually decreases.

[0050] refer to Figure 1 and Figure 2 The fixed teeth 022 include cylindrical, conical or sheet shapes.

[0051] In one embodiment, when the fixing teeth 022 are cylindrical, the cylindrical structure is more stable, allowing the fixing teeth 022 to have a stable fastening force, thereby improving the fastening stability of the fixing teeth 022 to the sealing cap 041. In addition, the cylindrical fixing teeth 022 have a more regular shape, making them easier to process and reducing manufacturing and maintenance costs.

[0052] In a specific embodiment, when the fixing tooth 022 is conical, the side surface of the fixing tooth 022 is inclined, thereby making it easier for the side surface of the fixing tooth 022 to fit in contact with the sealing cap 041, thereby increasing the fastening effect of the fixing tooth 022 on the sealing cap 041.

[0053] In a specific embodiment, when the fixing teeth 022 are in the form of sheets, the processing and manufacturing cost of the fixing teeth 022 is also low, and the sheet-shaped fixing teeth 022 can also be abutted against the side of the sealing cap 041 when bent.

[0054] refer to Figure 2 , the limiting cavity 021 has a lower opening.

[0055] In a specific embodiment, the bottom of the limiting cavity 021 is an opening structure. When the sealing cap 041 enters the removal assembly, the sealing cap 041 removed from the needle tube 040 and remaining in the removal assembly can be taken out from the upper opening or lower opening of the limiting cavity 021, so that the subsequent needle tube 040 with the sealing cap 041 can be placed in the removal assembly.

[0056] refer to Figure 2 Since the sealing cap 041 enters the removal assembly from above and the needle tube 040 is removed from above the sealing cap 041, the force exerted by the fixed teeth 022 on the sealing cap 041 is directed downward, increasing the likelihood that the sealing cap 041 will fall off the needle tube 040. Consequently, a greater force is required to remove the sealing cap 041 from above the confining cavity 021.

[0057] When sealing cap 041 is ejected from the bottom of confining cavity 021, the force exerted on it by fixed teeth 022 is significantly less than when it is removed from the top. Therefore, by continuously inserting needle tube 040 with sealing cap 041 into the removal assembly, the sealing cap 041 previously retained in the removal assembly will be ejected from the bottom opening of confining cavity 021. Therefore, it is easier to remove sealing cap 041 through the bottom opening of confining cavity 021.

[0058] refer to Figure 1 and Figure 2 The removing device further includes a receiving groove 050 , which is located below the supporting portion 020 and is used to receive the removed sealing cap 041 .

[0059] The receiving slot 050 is used to receive the sealing caps 041 discharged from the confining cavity 021. The receiving slot 050 is located below the confining cavity 021. After the sealing caps 041 are discharged from the confining cavity 021, they fall into the receiving slot 050. The sealing caps 041 are then collected and processed in a centralized manner from the receiving slot 050.

[0060] In a specific embodiment, the receiving slot 050 and the support portion 020 are detachably connected, which can be a snap connection, a bolt connection, a pull-out slot connection, a hinged connection, or other connection forms to achieve a detachable connection between the receiving slot 050 and the support portion 020.

[0061] Preferably, the receiving slot 050 and the supporting portion 020 are connected by means of a snap or pull slot.

[0062] refer to Figure 1 and Figure 2 , there is more than one removal component.

[0063] The removal assembly can remove one sealing cap 041 from the needle tube 040 at a time. If multiple removal assemblies are provided on the support portion 020, the sealing caps 041 of multiple needle tubes 040 can be removed at one time, thereby improving the removal efficiency of the sealing caps 041.

[0064] 47,48,49,50,55,60,65,70,75,80,85,90,95,100.

[0065] refer to Figure 1 and Figure 2 The removal device further includes a fixing portion 010 , which is connected to the top of the supporting portion 020 . The fixing portion 010 has one or more openings 011 , which are located directly above the opening on the limiting cavity 021 .

[0066] refer to Figure 1 and Figure 2 The fixing portion 010 is used to place and fix the needle tube 040. After the needle tube 040 is placed on the supporting portion 020, the sealing cap 041 can be placed into the removal assembly.

[0067] refer to Figure 1 and Figure 2 The removal assembly corresponds to the opening 011. The needle tube 040 is placed in the opening 011 on the fixing portion 010, and the sealing cap 041 falls into the removal assembly. Preferably, the number of openings 011 is equal to the number of removal assemblies.

[0068] Specifically, the number of openings 011 on the fixing portion 010 is: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100.

[0069] In a specific embodiment, when the sealing cap 041 is placed in the confining cavity 021 and fixed by the fixing teeth 022 , the lower end of the needle tube 040 abuts against the uppermost fixing tooth 022 .

[0070] In a specific embodiment, after the needle tube 040 is placed on the fixing portion 010 , the sealing cap 041 is exactly located in the defined cavity 021 , and the end surface of the lower end of the needle tube 040 abuts against the upper end surface of the defined cavity 021 .

[0071] refer to Figure 1 and Figure 2 The diameter of the opening 011 is such that the needle 040 can pass through.

[0072] In one embodiment, the needle tube 040 passes downward through the opening 011 of the fixing portion 010 from above until the sealing cap 041 of the needle tube 040 is inserted into the removal assembly. The depth of insertion into the removal assembly is sufficient to allow the sealing cap 041 to be removed. When the sealing cap 041 moves into the confined cavity 021, the needle tube 040 and the sealing cap 041 need to pass through the locking hole on the fixing portion 010. Therefore, the diameter of the opening 011 on the fixing portion 010 is sized to allow the needle tube 040 and the sealing cap 041 to pass through.

[0073] In summary, reference Figure 1 and Figure 2 The fixing part 010 and the removal assembly jointly fix the needle tube 040, and the upper end of the needle tube 040 passes through the opening 011, and the sealing cap 041 at the lower end of the needle tube 040 is placed in the removal assembly. At this time, the sealing cap 041 is located in the center of the multiple fixed teeth 022 arranged circumferentially. The fixed teeth 022 with a certain elasticity can be deformed to allow the sealing cap 041 to enter the removal assembly. The fixed teeth 022 will then squeeze and fix the sealing cap 041. When the robotic arm or other moving mechanism moves the needle tube 040, the robotic arm will pull the needle tube 040 upward from the fixing part 010. At the same time, the fixed teeth 022 will fix the sealing cap 041, so that when the robotic arm pulls out the needle tube 040, the sealing cap 041 will detach from the needle tube 040. This will achieve the removal of the sealing cap 041 from the needle tube 040.

[0074] When a new needle tube 040 is placed onto the fixing portion 010, the new needle tube 040 and the sealing cap 041 push down on the sealing cap 041 located within the fixing teeth 022, causing the sealing cap 041 to fall into the receiving groove 050 located below. The receiving groove 050 is detachably connected to the support portion 020. When the receiving groove 050 is full of sealing caps 041, the receiving groove 050 can be removed from the support portion 020. The sealing caps 041 in the receiving groove 050 are then disposed of collectively.

[0075] The receiving slot 050 is made of plastic or metal.

[0076] The fixing portion 010 and the supporting portion 020 are both made of plastic or metal.

[0077] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A needle tube sealing cap removal device, characterized in that: The removal device includes a support portion and a removal assembly, wherein the removal assembly is located on the support portion. The removal assembly includes: a defined cavity and flexible fixing teeth, wherein the fixing teeth are located on the inner wall of the defined cavity and protrude into the defined cavity, and the sealing cap can be inserted into the removal assembly; The lengths of the fixing teeth in a direction perpendicular to the surface defining the opening of the cavity are different, and the lengths of the fixing teeth are shorter as they are farther away from the opening of the cavity.

2. The removal device according to claim 1, characterized in that The direction of the fixed teeth is parallel to the surface defining the opening of the cavity, or extends obliquely downward.

3. The removal device according to claim 1, characterized in that The fixed teeth include cylindrical, conical or sheet shapes.

4. The removal device according to claim 1, characterized in that The confining cavity has a lower opening.

5. The removal device according to claim 1, characterized in that The removing device further comprises a receiving groove, which is located below the supporting portion and is used for receiving the removed sealing cap.

6. The removal device according to claim 5, characterized in that The receiving slot is detachably connected to the supporting portion.

7. The removal device according to claim 1, characterized in that There is more than one removal component.

8. The removal device according to claim 1, characterized in that The removal device further includes a fixing portion connected to the upper portion of the support portion. The fixing portion has one or more openings, and the openings are located directly above the upper opening of the limiting cavity.

9. The removal device according to claim 8, characterized in that The diameter of the opening is such that a needle can pass through.

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