Device for connecting heparin cap and infusion apparatus needle
By designing a detachable connection fixing component, the problem of unstable connection between the heparin cap and the infusion needle is solved, and stable connection is achieved, reducing the risk of shedding and cross-infection, improving the work efficiency of medical staff and the safety of connections .
Patent Information
- Application Number
- CN202420557799.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-03-21
AI Technical Summary
The lack of special equipment for fixing the heparin cap and infusion needle in the prior art, resulting in the risk of peeling off the glue connection, potential for cross-infection and safety risks of needle stab wounds.
Design a fixing assembly including a removable connection, including a symmetrical fixing housing, insertion track, fixing sheet, reserved hole and limiting ring, through which the stable connection between the heparin cap and the infusion needle is achieved, using elastic material and silicone The sheet increases friction and ensures the needle limit and fixation.
It effectively reduces the chance of the heparin cap and infusion needle to be disengaged, improves the work efficiency of medical staff, avoids the risk of cross-infection caused by glue connections, and enhances the stability and safety of the connection.
Smart Images
Figure CN222286099U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical appliances, and in particular relates to a device for connecting a heparin cap and an infusion device needle. Background Art
[0002] At present, when hospitalized patients need intravenous infusion, peripheral venous indwelling needles are usually selected to reduce the pain caused by multiple punctures to patients and reduce the workload of nurses. In some special cases (such as infusion of chemotherapy drugs and rescue), internal jugular vein catheters will be placed after informed consent of patients and their families, and heparin caps are installed at the ends. The heparin cap achieves the effect of sealing the intravenous indwelling needle by imitating the principle of clavo, and the injection needle of the external infusion line can repeatedly puncture the heparin cap for infusion or injection of drugs.
[0003] At present, there is no specific device for fixing heparin caps and infusion needles in clinical practice, so the common operation method is to use adhesive tape, but such operation has potential risks: first, the tape is not easy to tear off at the end of the infusion, and the adhesive mark will be left on the heparin cap, which violates the principle of aseptic operation; second, the fixed adhesive tape is not transparent, and needle stick injuries may occur if you are not careful during the tearing process; third, because the adhesive tape is easy to loosen, there is a high risk of the needle coming out during the infusion process, which poses a major safety hazard. Utility Model Content
[0004] In view of the above problems, the purpose of the present utility model is to provide a device for connecting a heparin cap and an infusion set needle to solve the problems raised in the above background technology.
[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a device for connecting a heparin cap and an infusion needle, including a fixing component for reinforcing the connection between the heparin cap and the infusion needle, the fixing component including two fixed shells that are symmetrical and detachably connected, insertion tracks symmetrically arranged on the sides of the two fixed shells close to each other and located on the upper part of the fixed shells, fixing plates symmetrically arranged on the inner side walls of the two fixed shells and used to prevent the infusion needle from slipping out of the fixed shells, reserved holes symmetrically arranged on the ends of the two fixed plates close to each other and for the needle to pass through, and fixing rings symmetrically arranged below the fixing plates and used to limit the infusion needle.
[0006] The beneficial effects of the utility model are as follows: by setting a fixing component to fix the heparin cap and the infusion needle, not only can the heparin cap and the infusion needle be stably connected together, but also the probability of the heparin cap and the infusion needle being easily dislocated after connection is reduced, thereby improving the work efficiency of medical staff, and at the same time, cross infection caused by using adhesive tape connection can be avoided.
[0007] To facilitate the stable connection between the heparin cap and the infusion needle:
[0008] As a further improvement of the above technical solution: the cross-section of the fixed shell is circular, the size of the upper part is smaller than the size of the lower part, and the bottom end of the fixed shell is provided with a limit baffle to prevent the heparin cap from slipping off. When in use, the heparin cap is placed in the lower part of the fixed shell, and the infusion needle is inserted downward from the top of the fixed shell.
[0009] The beneficial effect of this improvement is: first put the heparin cap into the lower part of one of the fixed shells, then clamp the other fixed shell on the fixed shell to wrap and fix the heparin cap, and when connecting the heparin cap and the infusion needle, insert the infusion needle downward along the top of the fixed shell until the needle is inserted into the appropriate position of the heparin cap.
[0010] In order to be able to limit the position of the infusion set needle after it has been inserted into the fixed housing:
[0011] As a further improvement of the above technical solution: the fixing plate is made of elastic material and is tilted downward. When the two fixing shells are connected together, the bottom ends of the two fixing plates fit together.
[0012] The beneficial effect of this improvement is that the top of the fixing plate is fixedly connected to the inner side wall of the fixed shell, and the angle between the top and the inner side wall of the fixed shell is 45 degrees. When the two fixed shells are connected together, the bottom ends of the two fixing plates fit together. When the needle of the infusion set passes through, the fixing plate can undergo a certain amount of elastic deformation. After the needle passes through, the two fixing plates quickly close and get stuck on the outer wall of the upper part of the needle of the infusion set to prevent the needle from falling out upward.
[0013] In order to better limit the position of the infusion needle and improve the stability of the connection between the infusion needle and the heparin cap:
[0014] As a further improvement of the above technical solution: a silicone sheet for increasing the friction between the infusion needle and the fixing sheet is arranged inside the reserved hole.
[0015] The beneficial effect of this improvement is that when the infusion needle passes through the reserved hole on the fixing plate, the upper part of the infusion needle is located at the reserved hole, and the provision of a silicone sheet can increase the friction between the fixing plate and the outer wall of the infusion needle, thereby better limiting the position of the infusion needle and improving the stability of the connection between the infusion needle and the heparin cap.
[0016] In order to limit the needle handle and the infusion needle so that the needle is aligned with the reserved hole:
[0017] As a further improvement of the above technical solution: a fixed top plate is arranged on the top of the fixed shell, and a positioning blocking plate for limiting the moving trajectory of the needle is connected to the bottom of the fixed top plate and the side wall of the fixed sheet.
[0018] The beneficial effect of this improvement is that when the handheld needle handle is inserted into the fixed shell along the insertion track, the needle handle on the side away from the hand slides downward along the surface of the positioning blocking plate, which can limit the needle handle and the infusion needle, so that the needle can be inserted into the reserved hole and move smoothly downward along the reserved hole.
[0019] In order to position the infusion needle so that it can be inserted into the appropriate position of the heparin cap:
[0020] As a further improvement of the above technical solution: the fixing ring includes a semi-circular arc limiting ring symmetrically arranged inside the two fixing shells and a semi-circular arc limiting block symmetrically arranged at the bottom of the two limiting rings and used to limit the infusion needle.
[0021] The beneficial effect of this improvement is: when the two fixed shells are put together, the two semicircular limit rings fit together to form a small ring, and the two semicircular limit blocks fit together to form a pillar. When the infusion needle passes through the reserved hole and is inserted into the small ring, the plastic base on the top of the needle just touches the top of the pillar, and the infusion needle cannot move further downward. At this time, the infusion needle is inserted into the heparin cap.
[0022] In order to further improve the firmness of the connection between the infusion needle and the heparin cap:
[0023] As a further improvement of the above technical solution: the sum of the widths of the insertion tracks in the two fixed shells is greater than the thickness of the infusion needle handle, and a silicone plate for limiting the needle handle is provided at the bottom end of the insertion track.
[0024] The beneficial effect of this improvement is that when the hand-held needle handle is inserted into the heparin cap along the insertion track with the needle, the bottom end of the handle falls exactly to the bottom of the insertion track. A silicone plate is arranged inside the insertion track to reduce the width of the insertion track. After the handle is inserted between the two silicone plates, the handle can be limited and fixed under the elastic action of the silicone plate, thereby preventing the infusion needle from slipping upward, thereby further improving the firmness of the connection between the infusion needle and the heparin cap.
[0025] To facilitate the connection of two fixed housings:
[0026] As a further improvement of the above technical solution: a side wall of one of the fixed shells is provided with a plurality of connecting heads, the connecting heads include a connecting column head and a spherical clamping head which is provided at the outer end of the connecting column head and has a diameter larger than the connecting column head; and a side wall of another fixed shell is provided with a plurality of limiting slots which are interference fit with the connecting heads.
[0027] The beneficial effect of this improvement is: aligning the two fixed shells so that the connecting head is aligned with the limiting slot, and inserting the connecting column head and the spherical clamp head into the limiting slot can realize the connection of the two fixed shells. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a side view stereoscopic structural diagram of the fixing assembly in the utility model;
[0029] Figure 2 It is a front cross-sectional structural schematic diagram of the connection state of the heparin cap and the infusion set needle in the utility model;
[0030] Figure 3 It is a rear cross-sectional structural schematic diagram of the connection state of the heparin cap and the infusion set needle in the utility model;
[0031] Figure 4 It is a schematic diagram of a top cross-sectional structure of a fixing component in the utility model;
[0032] Figure 5 It is a right side cross-sectional structural schematic diagram of the connection state of the heparin cap and the infusion set needle in the utility model;
[0033] Figure 6 It is a side view of the three-dimensional structure of the fixed shell in the utility model.
[0034] In the figure: 1. Fix the shell; 2. Insert the track; 3. Fix the plate; 4. Reserved hole; 5. Fix the ring; 6. Silicone sheet; 7. Fix the top plate; 8. Positioning blocking plate; 9. Limiting ring; 10. Limiting block; 11. Silicone plate; 12. Connecting column head; 13. Spherical clamp; 14. Limiting slot; 15. Limiting baffle. DETAILED DESCRIPTION
[0035] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.
[0036] like Figure 1-6As shown, a device for connecting a heparin cap and an infusion needle comprises a fixing assembly for reinforcing the connection between the heparin cap and the infusion needle, wherein the fixing assembly comprises two fixing shells 1 which are symmetrical and detachably connected, an insertion track 2 which is symmetrically arranged on one side of the two fixing shells 1 close to each other and located on the upper part of the fixing shells 1, a fixing sheet 3 which is symmetrically arranged on the inner side walls of the two fixing shells 1 and used to prevent the infusion needle from slipping out of the fixing shell 1, a reserved hole 4 which is symmetrically arranged on one end of the two fixing sheets 3 close to each other and used for the needle to pass through, and a fixing ring 5 which is symmetrically arranged below the fixing sheet 3 and used to limit the infusion needle. By setting the fixing assembly to fix the heparin cap and the infusion needle, not only the heparin cap can be fixed, but also the infusion needle can be fixed. It is stably connected with the infusion needle, reducing the probability of the heparin cap and the infusion needle coming off after connection, improving the work efficiency of medical staff, and avoiding cross infection caused by using adhesive tape connection. The cross section of the fixed shell 1 is circular, and the size of the upper part is smaller than the size of the lower part, and the bottom end of the fixed shell 1 is provided with a limit baffle 15 to prevent the heparin cap from slipping off. When in use, the heparin cap is placed in the lower part of the fixed shell 1, and the infusion needle is inserted downward from the top of the fixed shell 1. The heparin cap is first placed in the lower part of one of the fixed shells 1, and then the other fixed shell 1 is clamped on the fixed shell 1 to wrap and fix the heparin cap. When connecting the heparin cap and the infusion needle, the infusion needle is Insert downward along the top of the fixed shell 1 until the needle is inserted into the appropriate position of the heparin cap. The fixing plate 3 is made of elastic material and is tilted downward. When the two fixed shells 1 are connected together, the bottom ends of the two fixing plates 3 fit together, and the top of the fixing plate 3 is fixedly connected to the inner wall of the fixed shell 1, and the angle with the inner wall of the fixed shell 1 is 45 degrees. When the two fixed shells 1 are connected together, the bottom ends of the two fixing plates 3 fit together. When the needle of the infusion set passes through, the fixing plate 3 can undergo a certain amount of elastic deformation. After the needle passes through, the two fixing plates 3 are quickly closed and stuck on the outer wall of the upper part of the infusion set needle to prevent the needle from falling out upward. The interior of the reserved hole 4 is provided with a space for increasing the infusion set needle and the fixing plate. 3, when the infusion set needle passes through the reserved hole 4 opened on the fixing plate 3, the upper part of the infusion set needle is located at the reserved hole 4, and the provision of the silicone sheet 6 can increase the friction between the fixing plate 3 and the outer wall of the infusion set needle, so that the infusion set needle can be better limited, and the stability of the connection between the infusion set needle and the heparin cap is improved. A fixed top plate 7 is provided on the top of the fixed shell 1, and a positioning blocking plate 8 for limiting the moving trajectory of the needle is connected to the bottom of the fixed top plate 7 and the side wall of the fixing plate 3. When the hand-held needle handle is inserted into the fixed shell 1 along the insertion track 2, the needle handle away from the hand side slides downward along the surface of the positioning blocking plate 8, which can limit the needle handle and the infusion set needle.Thereby, the needle can be inserted into the reserved hole 4 and move downward smoothly along the reserved hole 4. The fixed ring 5 includes a semi-circular limit ring 9 symmetrically arranged inside the two fixed shells 1 and a semi-circular limit block 10 symmetrically arranged at the bottom of the two limit rings 9 and used to limit the infusion needle. When the two fixed shells 1 are put together, the two semi-circular limit rings 9 fit together to form a small ring, and the two semi-circular limit blocks 10 fit together to form a pillar. When the infusion needle passes through the reserved hole 4 and is inserted into the small ring, the plastic base at the top of the needle just rests against the top of the pillar, and the infusion needle cannot continue to move downward. At this time, the infusion needle is inserted into the heparin cap. The sum of the widths of the insertion tracks 2 in the two fixed shells 1 is greater than the thickness of the infusion needle handle, and the bottom end of the insertion track 2 is provided with a silicone plate 11 for limiting the needle handle. When the hand-held needle handle is inserted along the insertion track 2 with the needle When the handle is inserted into the heparin cap, the bottom end of the handle just falls to the bottom of the insertion track 2. A silicone plate 11 is arranged inside the insertion track 2 to reduce the width of the insertion track 2. After the handle is inserted between the two silicone plates 11, the handle can be limited and fixed under the elastic action of the silicone plate 11, thereby preventing the infusion needle from slipping upward, thereby further improving the firmness of the connection between the infusion needle and the heparin cap. A plurality of connectors are arranged on the side wall of one of the fixed shells 1, and the connectors include a connecting column 12 and a spherical clamp 13 arranged at the outer end of the connecting column 12 and having a diameter larger than the connecting column 12. A plurality of limiting slots 14 are provided on the side wall of another fixed shell 1 for interference fit with the connector. The two fixed shells 1 are aligned so that the connector is aligned with the limiting slot 14, and the connecting column 12 and the spherical clamp 13 are clamped into the limiting slot 14 to achieve the connection of the two fixed shells 1.
[0037] The working principle and use process of the utility model are as follows: when using the device, first put the heparin cap into the lower part of one of the fixed shells 1, and then clamp the other fixed shell 1 on the fixed shell 1 to wrap and fix the heparin cap. When the hand-held needle handle is inserted into the fixed shell 1 along the insertion track 2, the needle handle away from the hand side slides downward along the surface of the positioning blocking plate 8, which can limit the needle handle and the infusion needle so that the infusion needle is just aligned with the reserved hole 4. When the infusion needle passes through the reserved hole 4, the fixing plate 3 can perform a certain amount of elastic deformation. After the needle passes through, the two fixing plates 3 are quickly closed and clamped on the outer wall of the upper part of the infusion needle to prevent the needle from falling out upward. When the two fixed shells 1 are put together, the two semi-fixed plates 3 are The arc-shaped limit ring 9 fits together to form a small ring, and the two semi-circular limit blocks 10 fit together to form a pillar. When the infusion needle passes through the reserved hole 4 and is inserted into the small ring, the plastic base on the top of the needle just touches the top of the pillar, and the infusion needle cannot move downward any further. At this time, the infusion needle is inserted into the appropriate position of the heparin cap, and at the same time, the bottom end of the handle just falls to the bottom of the insertion track 2. A silicone plate 11 is arranged inside the insertion track 2 to reduce the width of the insertion track 2. After the handle is inserted between the two silicone plates 11, the handle can be limited and fixed under the elastic action of the silicone plate 11, thereby preventing the infusion needle from slipping upward, thereby further improving the firmness of the connection between the infusion needle and the heparin cap.
[0038] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0039] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the utility model.
Claims
1. A device for connecting a heparin cap and an infusion needle, comprising a fixing assembly for reinforcing the connection between the heparin cap and the infusion needle, characterized in that: The fixing assembly comprises two fixing shells (1) which are symmetrically connected and detachably connected, an insertion track (2) symmetrically arranged on the sides of the two fixing shells (1) close to each other and located on the upper part of the fixing shells (1), a fixing plate (3) symmetrically arranged on the inner side walls of the two fixing shells (1) and used to prevent the infusion needle from slipping out of the fixing shells (1), a reserved hole (4) symmetrically arranged on the ends of the two fixing plates (3) close to each other and used for the needle to pass through, and a fixing ring (5) symmetrically arranged below the fixing plate (3) and used to limit the position of the infusion needle.
2. A device for connecting a heparin cap and an infusion needle according to claim 1, characterized in that: The cross section of the fixed shell (1) is circular, the size of the upper part is smaller than the size of the lower part, and the bottom end of the fixed shell (1) is provided with a limit baffle (15) to prevent the heparin cap from slipping off. When in use, the heparin cap is placed in the lower part of the fixed shell (1), and the infusion needle is inserted downward from the top of the fixed shell (1).
3. The device for connecting a heparin cap and an infusion needle according to claim 1, characterized in that: The fixing sheet (3) is made of an elastic material and is arranged to be tilted downwards. When the two fixing shells (1) are connected together, the bottom ends of the two fixing sheets (3) fit together.
4. The device for connecting a heparin cap and an infusion needle according to claim 1, characterized in that: A silicone sheet (6) for increasing the friction between the infusion set needle and the fixing sheet (3) is arranged inside the reserved hole (4).
5. The device for connecting a heparin cap and an infusion needle according to claim 1, characterized in that: A fixed top plate (7) is arranged on the top of the fixed housing (1), and a positioning blocking plate (8) for limiting the moving track of the needle is connected to the bottom of the fixed top plate (7) and located on the side wall of the fixed sheet (3).
6. The device for connecting a heparin cap and an infusion needle according to claim 1, characterized in that: The fixing ring (5) comprises a semi-circular arc limiting ring (9) symmetrically arranged inside the two fixing shells (1) and a semi-circular arc limiting block (10) symmetrically arranged at the bottom of the two limiting rings (9) and used for limiting the position of the infusion set needle.
7. The device for connecting a heparin cap and an infusion needle according to claim 1, characterized in that: The sum of the widths of the insertion rails (2) in the two fixed shells (1) is greater than the thickness of the infusion needle handle, and a silicone plate (11) for limiting the needle handle is provided at the bottom end of the insertion rails (2).
8. The device for connecting a heparin cap and an infusion needle according to claim 1, characterized in that: A plurality of connectors are provided on the side wall of one of the fixed shells (1), the connectors comprising a connecting column head (12) and a spherical clamping head (13) which is provided at the outer end of the connecting column head (12) and has a larger diameter than the connecting column head (12), and a plurality of limiting slots (14) which are interference-fitted with the connecting heads are provided on the side wall of the other fixed shell (1).