An ultrasonic needle pushing needle cap and an ultrasonic needle inner core pushing needle storage method
By designing a storage groove structure for the ultrasonic needle pusher cap, the problem of inconvenient storage of the inner core pusher in the existing technology is solved, achieving convenient fixation and low-cost production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SUZHOU FRANKMAN MEDICAL DEVICE TECH RES INST CO LTD
- Filing Date
- 2023-03-06
- Publication Date
- 2026-07-31
AI Technical Summary
Existing ultrasonic needle pusher caps cannot conveniently store the inner core pusher, requiring manual assembly of two parts, resulting in high material and labor costs, making them unsuitable for widespread use.
Design an ultrasonic needle push cap, including a hollow cylindrical body and an internal needle socket. The body is provided with a storage groove, which includes an inlet groove and a fixing groove. After the inner core push needle is inserted, it is fixed by the first and second storage grooves. The structure is simple and can be integrally injection molded.
It achieves convenient and secure storage of the inner core push pin, reduces production costs, and requires no assembly, making it more convenient to use.
Smart Images
Figure CN116138855B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of medical device technology, and in particular relates to a method for storing an ultrasonic needle push cap and the inner core push of an ultrasonic needle. Background Technology
[0002] Ultrasonic needles include an inner core pusher needle approximately 1.8m in length. Conventional injection needle caps only protect the needle tip and cannot retract the pusher needle. Currently, a pusher cap capable of retracting the inner core pusher needle has appeared on the market. It consists of an inner pusher needle socket and an elastic arm surrounding the socket. After the inner core pusher needle is coiled, the elastic arm needs to be manually pulled open to clamp the coiled inner core pusher needle between the outer wall of the pusher needle socket and the inner wall of the elastic arm. This is inconvenient to use and requires the production of two separate parts, which are then manually assembled and interlocked. The material and labor costs are high, making it unsuitable for widespread use. Summary of the Invention
[0003] The purpose of this invention is to provide an ultrasonic needle push cap that is easy to use, simple in structure, and low in cost.
[0004] Another object of the present invention is to provide a method for storing the inner core pusher of an ultrasonic needle using the above-described ultrasonic needle pusher cap.
[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:
[0006] An ultrasonic needle push cap includes a generally hollow cylindrical body and a needle socket fixedly disposed in the center of the body. The needle socket has an insertion hole for inserting an inner core push pin of an ultrasonic needle. The body has a storage groove for fixing the inner core push pin. The storage groove includes an inlet groove and a fixing groove that are interconnected. The inlet groove extends downward from the upper edge of the side wall of the body but does not reach the lower edge of the side wall. The fixing groove extends along the circumferential direction of the body. The storage groove includes a first storage groove and a second storage groove that are independent of each other. When the inner core push pin, which is inserted into the insertion hole, is coiled and then passes through the first storage groove and the second storage groove, the inner core push pin is abutted and fixed against the inner walls of the fixing groove of the first storage groove and the fixing groove of the second storage groove.
[0007] The inner core pusher is relatively long and is fixedly stored in two storage slots after its coil, making operation very convenient. The ultrasonic needle pusher cap has a simple structure and low production cost.
[0008] Preferably, the inlet slots of the first and second storage slots divide the upper sidewall of the main body into a first and a second unconnected portion along the circumference. The inlet slots of the first and second storage slots each include a first inner surface and a second inner surface disposed opposite to each other. The first inner surface of the first and second storage slots are located at opposite ends of the first portion, and the second inner surface of the first and second storage slots are located at opposite ends of the second portion. The minimum distance from the axis of the needle socket to the first inner surface of the first storage slot is greater than the minimum distance from the axis of the needle socket to the second inner surface of the first storage slot, and the minimum distance from the axis of the needle socket to the first inner surface of the second storage slot is greater than the minimum distance from the axis of the needle socket to the second inner surface of the second storage slot. The line connecting the centers of the first and second inlet slots is slightly offset to one side of the needle socket, and can be fixed between one side of the needle socket and the first portion or the other side and the second portion, depending on the wire diameter of the inner core pusher. Specifically, when the wire diameter is larger, the elasticity is smaller, requiring less deformation to position the inner core push pin between the needle socket and the first part, thus saving effort. When the wire diameter is smaller, the elasticity is better, allowing the inner core push pin to be positioned between the needle socket and the second part; the deformation is slightly larger, resulting in greater resistance force against the fixing groove and better fixing effect. In some specific embodiments, a wire diameter of 0.8mm is used as a limiting value. When the wire diameter is greater than or equal to this limiting value, the inner core push pin is positioned between the needle socket and the first part; if the wire diameter of the inner core push pin is less than the limiting value, the inner core push pin is positioned between the needle socket and the second part.
[0009] More preferably, the minimum distance from the axis of the needle socket to the first inner surface of the first storage groove is 1 to 2 mm, for example, 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, or 2.0 mm.
[0010] More preferably, the minimum distance from the axis of the needle socket to the second inner surface of the first storage groove is 0 to 0.8 mm, for example, 0 mm, 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, or 0.8 mm.
[0011] More preferably, the minimum distance from the axis of the needle socket to the first inner surface of the second storage groove is 1 to 2 mm, for example, 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, or 2.0 mm.
[0012] More preferably, the minimum distance from the axis of the needle socket to the second inner surface of the second storage groove is 0 to 0.8 mm, for example, 0 mm, 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, or 0.8 mm.
[0013] More preferably, the first part is marked with a coarse needle storage mark, and the second part is marked with a fine needle storage mark.
[0014] Preferably, the first storage slot and / or the second storage slot are generally L-shaped or T-shaped.
[0015] According to some embodiments, the first storage slot and the second storage slot are generally L-shaped slot structures, and the fixing slots of the first storage slot and the second storage slot extend from the inlet slot in the same direction in the circumferential direction of the main body, wherein the same direction refers to the clockwise direction or the counterclockwise direction.
[0016] According to some specific embodiments, the fixing groove of the first storage slot includes a third inner surface extending downward from the lower edge of the first inner surface of the first storage slot but not to the lower edge of the side wall of the main body, a fourth inner surface extending from the lower edge of the second inner surface of the first storage slot in a direction away from the second inner surface of the first storage slot, a fifth inner surface extending downward from one side edge of the fourth inner surface away from the second inner surface of the first storage slot but not to the lower edge of the side wall of the main body, and a sixth inner surface whose two side edges are respectively connected to the lower edge of the third inner surface and the lower edge of the fifth inner surface;
[0017] The fixing groove of the second storage slot includes a third inner surface extending downward from the lower edge of the second inner surface of the second storage slot but not reaching the lower edge of the side wall of the main body; a fourth inner surface extending from the lower edge of the first inner surface of the second storage slot away from the first inner surface of the second storage slot; a fifth inner surface extending downward from one side edge of the fourth inner surface away from the first inner surface of the second storage slot but not reaching the lower edge of the side wall of the main body; and a sixth inner surface whose two side edges are respectively connected to the lower edges of the third inner surface and the lower edges of the fifth inner surface.
[0018] The third inner surface, the fourth inner surface, the fifth inner surface, and the sixth inner surface form the receiving space of the fixing groove.
[0019] More preferably, the second inner surface of the first storage slot and the first inner surface of the second storage slot are substantially parallel to the axis of the main body, the first inner surface of the first storage slot extends from top to bottom in a direction away from the second inner surface of the first storage slot, and the second inner surface of the second storage slot extends from top to bottom in a direction away from the first inner surface of the second storage slot.
[0020] More preferably, in the first storage groove, the third inner surface extends from top to bottom in a direction away from the second inner surface; in the second storage groove, the third inner surface extends from top to bottom in a direction away from the first inner surface, which can effectively prevent accidental detachment and provide a better fixing effect.
[0021] More preferably, the distance from the fourth inner surface of the first storage groove to the upper edge of the side wall of the main body is less than the distance from the fourth inner surface of the second storage groove to the upper edge of the side wall of the main body.
[0022] More preferably, the fourth and sixth inner surfaces of the first storage slot and the fourth and sixth inner surfaces of the second storage slot are perpendicular to the axis of the main body, and the sixth inner surface of the first storage slot and the sixth inner surface of the second storage slot are coplanar.
[0023] More preferably, in the first storage slot and the second storage slot, the maximum circumferential arc distance between the third inner surface and the fifth inner surface is 5 to 7 mm, for example, 5 mm, 5.5 mm, 6 mm, 6.5 mm, or 7 mm.
[0024] According to other embodiments, the first and second storage slots are generally T-shaped and symmetrically distributed.
[0025] The first storage slot and the second storage slot each include a seventh inner surface extending from the lower edge of the first inner surface in a direction away from the first inner surface, an eighth inner surface extending downward from the side edge of the seventh inner surface away from the first inner surface and not reaching the lower end of the side wall of the main body, a ninth inner surface extending from the lower edge of the second inner surface in a direction away from the second inner surface, a tenth inner surface extending downward from the side edge of the ninth inner surface away from the second inner surface and not reaching the lower end of the side wall of the main body, and an eleventh inner surface whose two sides are respectively connected to the lower edges of the eighth inner surface and the lower edges of the tenth inner surface. The seventh inner surface, the eighth inner surface, the ninth inner surface, the tenth inner surface and the eleventh inner surface form the receiving space of the fixing slot.
[0026] More preferably, the first inner surface and / or the second inner surface are respectively substantially parallel to the axis of the body.
[0027] More preferably, the seventh inner surface, the ninth inner surface, and the eleventh inner surface are perpendicular to the axis of the body, and the eighth inner surface and the tenth inner surface are parallel to the axis of the body.
[0028] More preferably, the distance from the ninth inner surface to the upper edge of the side wall of the main body is less than the distance from the seventh inner surface to the upper edge of the side wall of the main body, which provides a good locking and fixing effect for inner core push pins of different wire diameters and makes them less likely to fall off.
[0029] More preferably, the circumferential arc distance between the eighth inner surface and the tenth inner surface is 5.5 to 7.5 mm, for example, 5.5 mm, 6 mm, 6.5 mm, 7 mm, or 7.5 mm.
[0030] Preferably, the pin socket includes a socket body with the socket hole and a panel located inside the body and fixedly connected to or integrally formed with the inner wall of the body. The panel is perpendicular to the axis of the body, the socket body extends upward from the panel along the axis of the body, the upper end face of the socket body extends beyond the upper edge of the side wall of the body, and the socket hole is coaxial with the socket body.
[0031] More preferably, the panel has a through hole coaxial with the socket.
[0032] More preferably, the distance from the upper surface of the panel to the upper end of the main body is 0.2 to 0.4 times the distance from the lower surface of the panel to the lower end of the main body.
[0033] More preferably, the bottom of the fixing groove is coplanar with the upper surface of the panel.
[0034] According to some specific embodiments, the outer diameter of the main body is 10-20mm, for example 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm.
[0035] According to some specific embodiments, the inner diameter of the main body is 5 to 15 mm, for example 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm.
[0036] According to some specific embodiments, the height of the main body is 10 to 14 mm, for example 10 mm, 11 mm, 12 mm, 13 mm, or 14 mm.
[0037] According to some specific embodiments, the maximum outer diameter of the socket body is 2 to 6 mm, for example 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, and 6 mm.
[0038] Specifically, the socket is an interference fit socket that can be interference fitted with inner core push pins of different specifications.
[0039] Specifically, the ultrasonic needle push cap of the present invention is integrally injection molded.
[0040] The present invention also provides a method for storing the inner core pusher of an ultrasonic needle, wherein the ultrasonic needle pusher cap is used for storage.
[0041] Specifically, the inner core pusher is inserted into the insertion hole of the ultrasonic needle pusher cap. After coiling the inner core pusher, it is first inserted into one of the first and second storage slots, then around the needle socket and inserted into the other of the first and second storage slots. The coiled inner core pusher passes through the first and second storage slots. A limit value is set. If the wire diameter of the inner core pusher is greater than or equal to the limit value, the inner core pusher is positioned between the needle socket and the first part. If the wire diameter of the inner core pusher is less than the limit value, the inner core pusher is positioned between the needle socket and the second part.
[0042] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:
[0043] The ultrasonic needle pusher cap of the present invention can be used to fix the inner core pusher of the ultrasonic needle. It has a good fixing effect on the inner core pusher after coiling and is easy to use. The ultrasonic needle pusher cap of the present invention has a simple structure and can be directly injection molded in one piece without assembly, resulting in low production cost. Attached Figure Description
[0044] Figure 1 This is a three-dimensional structural diagram of the ultrasonic needle push cap of Example 1;
[0045] Figure 2 This is a top view of the ultrasonic needle push cap of Example 1;
[0046] Figure 3 This is a bottom view of the ultrasonic needle push cap of Example 1;
[0047] Figure 4 This is a front view of the ultrasonic needle push cap of Example 1;
[0048] Figure 5 This is a rear view of the ultrasonic needle push cap of Example 1;
[0049] Figure 6This is a left view of the ultrasonic needle push cap of Example 1;
[0050] Figure 7 This is a right view of the ultrasonic needle push cap of Example 1;
[0051] Figure 8 This is a schematic diagram of the ultrasonic needle pusher cap for storing fine needles in Example 1;
[0052] Figure 9 This is a schematic diagram of the ultrasonic needle pusher cap after storing the fine needle in Example 1;
[0053] Figure 10 for Figure 9 A magnified view of a portion of the image;
[0054] Figure 11 for Figure 10 A structural diagram from another perspective;
[0055] Figure 12 This is a partial structural diagram of the ultrasonic needle pusher cap after it has been used to store the coarse needle in Example 1;
[0056] Figure 13 for Figure 12 A structural diagram from another perspective;
[0057] Figure 14 This is a three-dimensional structural diagram of the ultrasonic needle push cap in Example 2;
[0058] Figure 15 This is a top view of the ultrasonic needle push cap of Example 2;
[0059] Figure 16 This is a bottom view of the ultrasonic needle push cap of Example 2;
[0060] Figure 17 This is a front view of the ultrasonic needle push cap of Example 2;
[0061] Figure 18 This is a rear view of the ultrasonic needle push cap of Example 2;
[0062] Figure 19 This is a left view of the ultrasonic needle push cap of Example 2;
[0063] Figure 20 This is a right view of the ultrasonic needle push cap of Example 2.
[0064] In the above image,
[0065] 1. Main body; 11. First part; 12. Second part; 13. Coarse needle storage mark; 14. Fine needle storage mark;
[0066] 21. Panel; 22. Socket body; 23. Socket hole;
[0067] 31. First storage compartment; 32. Second storage compartment;
[0068] 41. First inner surface; 42. Second inner surface; 43. Third inner surface; 44. Fourth inner surface; 45. Fifth inner surface; 46. Sixth inner surface; 47. Seventh inner surface; 48. Eighth inner surface; 49. Ninth inner surface; 410. Tenth inner surface; 411. Eleventh inner surface;
[0069] 5. Inner core push pin. Detailed Implementation
[0070] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the embodiments of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0071] In the description of this invention, it should be understood that the terms "upper," "lower," "away from," and "closer" used herein are based on Figure 1 and Figure 14 The description uses positional relationships; radial refers to the direction perpendicular to the axial direction; inner and outer are positions defined by distances relative to the center of the instrument or component, where inner is the position closer to the center of the instrument or component, and outer is the position farther from the center of the instrument or component. The above description of directional terms is only for the convenience of describing the embodiments of the present invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of the present invention.
[0072] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this invention according to the specific circumstances.
[0073] The inner core pusher of the ultrasonic needle involved in this invention is the inner core pusher conventionally used in the art.
[0074] The following disclosure provides many different implementations or examples for carrying out different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention.
[0075] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0076] Example 1
[0077] like Figures 1 to 13 As shown, this embodiment provides a preferred embodiment of an ultrasonic needle push cap, which includes an integrally formed body 1 and a needle socket. The body 1 is generally hollow cylindrical in shape. The needle socket includes a socket body 22 with an insertion hole 23 and a panel 21 located inside the body 1 and connected to the inner wall of the body 1. The panel 21 is perpendicular to the axis of the body 1. The socket body 22 extends upward from the upper surface of the panel 21 along the axis of the body 1. The upper end face of the socket body 22 extends beyond the upper edge of the side wall of the body 1. An insertion hole 23 is formed inside the socket body 22 for inserting the inner core push pin 5 of the ultrasonic needle. The insertion hole 23 is an interference fit that can be interference fitted with inner core push pins 5 of different specifications. The insertion hole 23, the socket body 22, and the body 1 are coaxial. In this embodiment, the height of the main body 1 in the axial direction is 12mm, the outer diameter of the main body 1 is 15mm, the inner diameter is 10mm, the maximum outer diameter of the socket body 22 is 4mm, and the distance from the upper surface of the panel 21 to the upper end of the main body 1 is approximately 0.3 times the distance from the lower surface of the panel 21 to the lower end of the main body 1.
[0078] The main body 1 has a storage groove for fixing the inner core push pin 5. The storage groove includes an inlet groove and a fixing groove that are interconnected. The inlet groove extends downward from the upper edge of the side wall of the main body 1 but does not reach the lower edge of the side wall. The fixing groove extends along the circumferential direction of the main body. The storage groove includes a first storage groove 31 and a second storage groove 32 that are independent of each other. When the inner core push pin 5, which is inserted into the insertion hole 23, is coiled and passes through the first storage groove 31 and the second storage groove 32, the inner core push pin 5 is fixed against the inner wall of the fixing groove of the first storage groove 31 and the fixing groove of the second storage groove 32. In this embodiment, the first storage groove 31 and the second storage groove 32 are L-shaped groove structures. The fixing grooves of the first storage groove and the second storage groove extend clockwise from the inlet groove in the circumferential direction of the main body 1. Specifically, the inlet slots of the first storage slot 31 and the second storage slot 32 divide the upper part of the side wall of the main body 1 into a first part 11 and a second part 12 that are not connected in the circumferential direction. The inlet slots of the first storage slot 31 and the second storage slot 32 each include a first inner surface 41 and a second inner surface 42 that are disposed opposite to each other. The first inner surface 41 of the first storage slot 31 and the first inner surface 41 of the second storage slot 32 are located at both ends of the first part 11, and the second inner surface 42 of the first storage slot 31 and the second inner surface 42 of the second storage slot 32 are located at both ends of the second part 12. The second inner surface 42 of the first storage slot 31 and the first inner surface 41 of the second storage slot 32 are approximately parallel to the axis of the main body 1. The first inner surface 41 of the first storage slot 31 extends downward from top to bottom in a direction away from the second inner surface 42 of the first storage slot 31, and the second inner surface 42 of the second storage slot 32 extends downward from top to bottom in a direction away from the first inner surface 41 of the second storage slot 32. The distance from the axis of the needle socket to the first inner surface 41 of the first storage groove 31 and the distance from the axis of the needle socket to the first inner surface 41 of the second storage groove 32 are both approximately 1.5 mm; the minimum distance from the axis of the needle socket to the second inner surface 42 of the first storage groove 31 and the minimum distance from the axis of the needle socket to the second inner surface 42 of the second storage groove 32 are both approximately 0.5 mm. Figure 6 As shown, the fixing groove of the first storage groove 31 includes a third inner surface 43 extending downward from the lower edge of the first inner surface 41 of the first storage groove 31 but not reaching the lower edge of the side wall of the main body 1; a fourth inner surface 44 extending from the lower edge of the second inner surface 42 of the first storage groove 31 in a direction away from the second inner surface 42 of the first storage groove 31; a fifth inner surface 45 extending downward from one side edge of the fourth inner surface 44 away from the second inner surface 42 of the first storage groove 31 but not reaching the lower edge of the side wall of the main body 1; and a sixth inner surface 46 whose two sides are respectively connected to the lower edges of the third inner surface 43 and the fifth inner surface 45. The third inner surface 43, the fourth inner surface 44, the fifth inner surface 45, and the sixth inner surface 46 form a receiving space for the fixing groove. Figure 7As shown, the fixing groove of the second storage groove 32 includes a third inner surface 43 extending downward from the lower edge of the second inner surface 42 of the second storage groove 32 but not reaching the lower edge of the side wall of the main body 1; a fourth inner surface 44 extending from the lower edge of the first inner surface 41 of the second storage groove 32 away from the first inner surface 41 of the second storage groove 32; a fifth inner surface 45 extending downward from one side edge of the fourth inner surface 44 away from the first inner surface 41 of the second storage groove 32 but not reaching the lower edge of the side wall of the main body 1; and a sixth inner surface 46 whose two sides are respectively connected to the lower edges of the third inner surface 43 and the fifth inner surface 45. The third inner surface 43, the fourth inner surface 44, the fifth inner surface 45, and the sixth inner surface 46 form a receiving space for the fixing groove. In this embodiment, the maximum circumferential arc distance between the fifth inner surface 45 and the sixth inner surface 46 is 6 mm. In other embodiments, the above specifications can be adjusted as needed. In this embodiment, the first part 11 is marked with a coarse needle storage mark 13, the second part 12 is marked with a fine needle storage mark 14, and the two ends of the first part 11 and the second part 12 are also marked with the insertion sequence, which instructs the operator to insert the inner core pusher 5 after the coil into the corresponding side according to the wire diameter.
[0079] The method of using the ultrasonic needle push cap in this embodiment:
[0080] If the wire diameter of the inner core push pin 5 is greater than or equal to 0.8mm, after inserting the inner core push pin 5 into the socket 23, coil the inner core push pin 5 and first insert it into the first storage groove 31, then wrap it around the needle socket and insert it into the second storage groove 32, so that the inner core push pin 5 is located between the needle socket and the first part 11. At this time, the inner core push pin 5 abuts against the needle socket, the first storage groove 31 and the second storage groove 32 respectively to achieve a tight fit (see...). Figure 12 and Figure 13 ).
[0081] If the wire diameter of the inner core pusher 5 is less than 0.8mm, insert the inner core pusher 5 into the socket 23, coil the inner core pusher 5 and first insert it into the second storage groove 32, then wrap it around the needle socket and insert it into the first storage groove 31, so that the inner core pusher 5 is located between the needle socket and the second part 12. At this time, the inner core pusher 5 abuts against the needle socket, the first storage groove 31 and the second storage groove 32 respectively to achieve a tight fit (see Figure 8 and Figure 11 ).
[0082] Example 2
[0083] like Figures 14 to 20As shown, this embodiment provides another preferred embodiment of the ultrasonic needle push cap. The difference between the ultrasonic needle push cap of this embodiment and the ultrasonic needle push cap of Embodiment 1 lies in the different structures of the first storage groove 31 and the second storage groove 32. In this embodiment, the first storage groove 31 and the second storage groove 32 are approximately T-shaped groove structures and are generally symmetrically distributed. Specifically, the ultrasonic needle push cap includes an integrally formed main body 1 and a needle socket. The main body 1 is generally hollow cylindrical in shape. The needle socket includes a socket body 22 with an insertion hole 23 and a panel 21 located inside the main body 1 and connected to the inner wall of the main body 1. The panel 21 is perpendicular to the axis of the main body 1. The socket body 22 extends upward from the upper surface of the panel 21 along the axis of the main body 1. The upper end face of the socket body 22 extends beyond the upper edge of the side wall of the main body 1. An insertion hole 23 is formed inside the socket body 22 for inserting the inner core pusher 5 of the ultrasonic needle. The insertion hole 23 is an interference fit that can be used with inner core pushers 5 of different specifications. The insertion hole 23, the socket body 22, and the main body 1 are coaxial. In this embodiment, the height of the main body 1 in the axial direction is 12mm, the outer diameter of the main body 1 is 15mm, the inner diameter is 10mm, the maximum outer diameter of the socket body 22 is 4mm, and the distance from the upper surface of the panel 21 to the upper end of the main body 1 is approximately 0.3 times the distance from the lower surface of the panel 21 to the lower end of the main body 1. The main body 1 has a storage groove for fixing the inner core push pin 5. The storage groove includes an inlet groove and a fixing groove that are interconnected. The inlet groove extends downward from the upper edge of the side wall of the main body 1 but does not reach the lower edge of the side wall. The fixing groove extends along the circumferential direction of the main body. The storage groove includes a first storage groove 31 and a second storage groove 32 that are independent of each other. When the inner core push pin 5, which is inserted into the insertion hole 23, is coiled and passes through the first storage groove 31 and the second storage groove 32, the inner core push pin 5 is fixed against the inner wall of the fixing groove of the first storage groove 31 and the fixing groove of the second storage groove 32. The inlet slot of the first storage slot 31 and the inlet slot of the second storage slot 32 divide the upper part of the side wall of the main body 1 into a first part 11 and a second part 12 that are not connected to each other along the circumference. The inlet slot of the first storage slot 31 and the inlet slot of the second storage slot 32 respectively include a first inner surface 41 and a second inner surface 42 that are arranged opposite to each other. The first inner surface 41 of the first storage slot 31 and the first inner surface 41 of the second storage slot 32 are respectively located at both ends of the first part 11, and the second inner surface 42 of the first storage slot 31 and the second inner surface 42 of the second storage slot 32 are respectively located at both ends of the second part 12. The first inner surface 41 and the second inner surface 42 of the two inlet slots are approximately parallel to the axis of the main body 1. The distance from the axis of the needle socket to the first inner surface 41 of the first storage slot 31 and the distance from the axis of the needle socket to the first inner surface 41 of the second storage slot 32 are approximately 1.5 mm. The distance from the axis of the needle socket to the second inner surface 42 of the first storage slot 31 and the distance from the axis of the needle socket to the second inner surface 42 of the second storage slot 32 are approximately 0.5 mm.The fixing groove of the first storage groove 31 and the fixing groove of the second storage groove 32 respectively include a seventh inner surface 47 extending from the lower edge of the first inner surface 41 away from the first inner surface 41, an eighth inner surface 48 extending downward from the side edge of the seventh inner surface 47 away from the first inner surface 41 and not reaching the lower end of the side wall of the main body 1, a ninth inner surface 49 extending from the lower edge of the second inner surface 42 away from the second inner surface 42, a tenth inner surface 410 extending downward from the side edge of the ninth inner surface 49 away from the second inner surface 42 and not reaching the lower end of the side wall of the main body 1, and an eleventh inner surface 411 whose two sides are connected to the lower edges of the eighth inner surface 48 and the tenth inner surface 410 respectively. The seventh inner surface 47, the eighth inner surface 48, the ninth inner surface 49, the tenth inner surface 410 and the eleventh inner surface 411 form a receiving space for the fixing groove. In this embodiment, the distance from the ninth inner surface 49 to the upper edge of the side wall of the main body 1 is less than the distance from the seventh inner surface 47 to the upper edge of the side wall of the main body 1, and the circumferential arc distance between the eighth inner surface 48 and the tenth inner surface 410 is 6.5 mm. In other embodiments, the above specifications can be adjusted as needed. In this embodiment, the first part 11 is marked with a coarse needle storage mark 13, the second part 12 is marked with a fine needle storage mark 14, and the two ends of the first part 11 and the second part 12 are also marked with the insertion sequence, instructing the operator to insert the inner core pusher 5 after coiling into the corresponding side according to the wire diameter.
[0084] The method of using the ultrasonic needle push cap in this embodiment:
[0085] If the wire diameter of the inner core push pin 5 is greater than or equal to 0.8mm, the inner core push pin 5 is inserted into the socket 23. After the inner core push pin 5 is coiled, it is first inserted into the first storage groove 31, then inserted into the second storage groove 32 after wrapping around the needle socket, so that the inner core push pin 5 is located between the needle socket and the first part 11. At this time, the inner core push pin 5 abuts against the needle socket, the first storage groove 31 and the second storage groove 32 respectively to achieve a tight fit.
[0086] If the wire diameter of the inner core push pin 5 is less than 0.8mm, the inner core push pin 5 is inserted into the socket 23. After the inner core push pin 5 is coiled, it is first inserted into the second storage groove 32, then wrapped around the needle socket and inserted into the first storage groove 31, so that the inner core push pin 5 is located between the needle socket and the second part 12. At this time, the inner core push pin 5 abuts against the needle socket, the first storage groove 31 and the second storage groove 32 respectively to achieve a tight fit.
[0087] The present invention has been described in detail above, with the aim of enabling those skilled in the art to understand and implement the invention. However, this description should not be construed as limiting the scope of protection of the invention. All equivalent changes or modifications made in accordance with the spirit and essence of the invention should be included within the scope of protection of the invention.
Claims
1. An ultrasonic needle push cap, comprising a generally hollow cylindrical body (1) and a needle socket fixedly disposed in the center of the body (1), the needle socket having an insertion hole (23) for inserting an inner core push pin (5) of an ultrasonic needle, characterized in that: The main body (1) has a storage groove for fixing the inner core push pin (5). The storage groove includes an inlet groove and a fixing groove that are interconnected. The inlet groove extends downward from the upper edge of the side wall of the main body (1) but does not reach the lower edge of the side wall. The fixing groove extends along the circumferential direction of the main body (1). The storage slot includes a first storage slot (31) and a second storage slot (32) that are independent of each other. The inlet slot of the first storage slot (31) and the inlet slot of the second storage slot (32) divide the upper part of the side wall of the main body (1) into a first part (11) and a second part (12) that are not connected to each other in the circumferential direction. The inlet slot of the first storage slot (31) and the inlet slot of the second storage slot (32) respectively include a first inner surface (41) and a second inner surface (42) that are arranged opposite to each other. The first inner surface of the first storage slot and the first inner surface of the second storage slot are respectively located at both ends of the first part (11). The second inner surface of the first storage slot and the second inner surface of the second storage slot are respectively located at both ends of the second part (12). The minimum distance from the axis of the needle socket to the first inner surface of the first storage slot is greater than the minimum distance from the axis of the needle socket to the second inner surface of the first storage slot. The minimum distance from the axis of the needle socket to the first inner surface of the second storage slot is greater than the minimum distance from the needle socket to the second inner surface of the second storage slot. When the inner core push pin (5) inserted into the socket (23) is coiled and then passed through the first storage groove (31) and the second storage groove (32), the inner core push pin (5) abuts against and is fixed to the inner wall of the fixing groove of the first storage groove (31) and the fixing groove of the second storage groove (32).
2. The ultrasound needle-pushing cap of claim 1, wherein, The minimum distance from the axis of the needle socket to the first inner surface of the first storage slot is 1~2mm; and / or, the minimum distance from the axis of the needle socket to the second inner surface of the first storage slot is 0~0.8mm; and / or, the minimum distance from the axis of the needle socket to the first inner surface of the second storage slot is 1~2mm. And / or, the minimum distance from the axis of the needle socket to the second inner surface of the second storage groove is 0~0.8mm; and / or, the first part (11) is marked with a coarse needle storage mark (13), and the second part (12) is marked with a fine needle storage mark (14).
3. The ultrasound needle-pushing cap of claim 1, wherein, The first storage slot (31) and / or the second storage slot (32) are generally L-shaped or T-shaped.
4. The ultrasound needle-pushing cap of claim 3, wherein, The first storage slot (31) and the second storage slot (32) are roughly L-shaped slot structures. The fixing groove of the first storage groove (31) includes a third inner surface (43) extending downward from the lower edge of the first inner surface of the first storage groove but not to the lower edge of the side wall of the main body (1), a fourth inner surface (44) extending from the lower edge of the second inner surface of the first storage groove away from the second inner surface of the first storage groove, a fifth inner surface (45) extending downward from one side edge of the fourth inner surface (44) away from the second inner surface of the first storage groove but not to the lower edge of the side wall of the main body (1), and a sixth inner surface (46) whose two sides are respectively connected to the lower edge of the third inner surface (43) and the lower edge of the fifth inner surface (45). The third inner surface (43), the fourth inner surface (44), the fifth inner surface (45) and the sixth inner surface (46) form the receiving space of the fixing groove. The fixing groove of the second storage groove (32) includes a third inner surface (43) extending downward from the lower edge of the second inner surface of the second storage groove but not to the lower edge of the side wall of the main body (1), a fourth inner surface (44) extending from the lower edge of the first inner surface of the second storage groove away from the first inner surface of the second storage groove, a fifth inner surface (45) extending downward from one side edge of the fourth inner surface (44) away from the first inner surface of the second storage groove but not to the lower edge of the side wall of the main body (1), and a sixth inner surface (46) whose two sides are respectively connected to the lower edge of the third inner surface (43) and the lower edge of the fifth inner surface (45). The third inner surface (43), the fourth inner surface (44), the fifth inner surface (45) and the sixth inner surface (46) form the receiving space of the fixing groove.
5. The ultrasound needle-pushing cap of claim 4, wherein, The second inner surface of the first storage slot and the first inner surface of the second storage slot are approximately parallel to the axis of the main body (1). The first inner surface of the first storage slot extends from top to bottom in a direction away from the second inner surface of the first storage slot, and the second inner surface of the second storage slot extends from top to bottom in a direction away from the first inner surface of the second storage slot. And / or, in the first storage slot (31), the third inner surface (43) extends downward from the top and away from the second inner surface (42); in the second storage slot (32), the third inner surface (43) extends downward from the top and away from the first inner surface (41); And / or, the distance from the fourth inner surface of the first storage slot to the upper edge of the side wall of the main body (1) is less than the distance from the fourth inner surface of the second storage slot to the upper edge of the side wall of the main body (1); And / or, in the first storage slot (31) and the second storage slot (32), the maximum circumferential arc distance between the third inner surface (43) and the fifth inner surface (45) is 5~7mm.
6. The ultrasound needle-pushing cap of claim 5, wherein, The first storage slot (31) and the second storage slot (32) are roughly T-shaped and symmetrically distributed. The fixing grooves of the first storage groove (31) and the second storage groove (32) respectively include a seventh inner surface (47) extending from the lower edge of the first inner surface (41) in a direction away from the first inner surface (41), an eighth inner surface (48) extending downward from the side edge of the seventh inner surface (47) away from the first inner surface (41) and not reaching the lower end of the side wall of the main body (1), a ninth inner surface (49) extending from the lower edge of the second inner surface (42) in a direction away from the second inner surface (42), and a ninth inner surface (49) extending from the ninth inner surface (42) in a direction away from the second inner surface (42). The inner surface (49) extends downward from the side edge away from the second inner surface (42) and does not reach the lower end of the side wall of the main body (1) to the tenth inner surface (410), and the two sides of the eleventh inner surface (411) are respectively connected to the lower edge of the eighth inner surface (48) and the lower edge of the tenth inner surface (410). The seventh inner surface (47), the eighth inner surface (48), the ninth inner surface (49), the tenth inner surface (410) and the eleventh inner surface (411) form the receiving space of the fixing groove.
7. The ultrasound needle-pushing cap of claim 6, wherein, The first inner surface (41) and / or the second inner surface (42) are respectively substantially parallel to the axis of the body (1); And / or, the distance from the ninth inner surface (49) to the upper edge of the sidewall of the body (1) is less than the distance from the seventh inner surface (47) to the upper edge of the sidewall of the body (1); And / or, the circumferential arc distance between the eighth inner surface (48) and the tenth inner surface (410) is 5.5~7.5mm.
8. The ultrasound needle-pushing cap of claim 1, wherein, The pin socket includes a socket body (22) with the socket hole (23) and a panel (21) located inside the main body (1) and fixedly connected to or integrally formed with the inner wall of the main body (1). The panel (21) is perpendicular to the axis of the main body (1). The socket body (22) extends upward from the panel (21) along the axis of the main body (1). The upper end face of the socket body (22) extends beyond the upper edge of the side wall of the main body (1). The socket hole (23) is coaxial with the socket body (22). The bottom of the fixing groove is coplanar with the upper surface of the panel (21). And / or, the outer diameter of the main body (1) is 10~20mm; And / or, the inner diameter of the main body (1) is 5~15mm; And / or, the height of the main body (1) is 10~14mm; And / or, the maximum outer diameter of the socket body (22) is 2~6mm; And / or, the socket (23) is an interference fit socket that can be interference fitted with inner core push pins (5) of different specifications.
9. A method for storing the inner core pusher of an ultrasonic needle, wherein the inner core pusher (5) is inserted into the insertion hole (23) of the ultrasonic needle pusher cap as described in claim 1, the inner core pusher (5) is coiled and first inserted into one of the first storage groove (31) and the second storage groove (32), and then inserted into the other of the first storage groove (31) and the second storage groove (32) after passing around the needle socket, the coiled inner core pusher (5) passes through the first storage groove (31) and the second storage groove (32), a limit value is set, if the wire diameter of the inner core pusher (5) is greater than or equal to the limit value, the inner core pusher (5) is located between the needle socket and the first part (11), if the wire diameter of the inner core pusher (5) is less than the limit value, the inner core pusher (5) is located between the needle socket and the second part (12).