A buoy for a puncture needle

Abstract

The present invention discloses a buoy for a puncture needle, comprising a first shell cover, a second shell cover and a sliding component, wherein: the first shell cover and the second shell cover are fixedly connected to form a shell; the sliding component penetrates through the second shell cover along the length direction of the second shell cover and is movably arranged in the first shell cover, and the end of the sliding component and the first end of the first shell cover are used for clamping the puncture needle. This buoy for a puncture needle slides on the first shell cover through the sliding component, making it easy to be installed on the puncture needle.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a buoy for a puncture needle. Background Art

[0002] Percutaneous biopsy is the main way to obtain a pathological diagnosis. In percutaneous biopsy, the buoy of the puncture needle is used to mark the position on the puncture needle to calibrate or assist in judging the puncture depth.

[0003] The existing buoy devices mainly include a plastic ring structure buoy and a torsion spring structure buoy. The plastic ring structure buoy is sleeved on the puncture needle through its own frictional force. The torsion spring structure buoy is sleeved on the puncture needle, and the locking or unlocking relative to the puncture is realized by changing the inner diameter when the torsion spring is pressed or relaxed.

[0004] However, when installing the above two types of buoys, they both need to be inserted from the needle tip, which is inconvenient to use. When a doctor uses it, if the sterile glove is punctured or scratched by the tip of the puncture needle, the sterile environment of the puncture needle will be damaged. Summary of the Invention

[0005] In view of this, the present invention provides a buoy for a puncture needle. By sliding the sliding component on the first cover, the buoy can be easily installed on the puncture needle.

[0006] To achieve the above object, according to one aspect of the present invention, a buoy for a puncture needle is provided, including a first cover, a second cover, and a sliding component, wherein: the first cover and the second cover are fixedly connected to form a housing; the sliding component penetrates the second cover along the length direction of the second cover and is movably arranged in the first cover, and the end of the sliding component and the first end of the first cover are used to clamp the puncture needle.

[0007] Optionally, it further includes an elastic component, a force-applying component, and a guiding component. When the force-applying component is subjected to an external force, under the guiding action of the guiding component, the sliding component is driven away from the first end of the first cover; an elastic component is arranged in the housing, and under the action of the elastic component, a clamping force can be formed between the end of the sliding component and the first end of the first cover.

[0008] Optionally, the first cover includes a base plate and a clamping plate; the first end of the clamping plate is connected to the end of the base plate, and the second end, as the first end of the first cover, is located above the base plate; the guiding component is a chute, which is arranged on the base plate along the length direction of the base plate.

[0009] Optionally, the clamping plate is an arc-shaped plate or a folded plate.

[0010] Optionally, the chute is located in the middle of the base plate and has the same length as the base plate; one or more clamping grooves are arranged on both sides of the chute.

[0011] Optionally, the number of card slots on both sides of the chute is the same.

[0012] Optionally, the card slots on both sides of the chute are arranged symmetrically about the axis of the chute.

[0013] Optionally, a locking hook matching the card slot is arranged on the second shell cover so that the second shell cover is fixed on the first shell cover.

[0014] Optionally, at the top of the second shell cover, a first opening is arranged along the length direction of the second shell cover. One end of the second shell cover close to the clamping plate is a second opening. A stop block is arranged at the end of the second shell cover far from the clamping plate, and the stop block covers the end of the substrate. The first end of the sliding assembly is a force-applying component, the second end is a locking block, and the force-applying component and the locking block are connected by a sliding body. The sliding body penetrates through the second opening and is movably arranged in the chute. The locking block is located outside the second shell cover. The force-applying component is located inside the second shell cover and extends out from the first opening. The elastic component is a compression spring and is arranged between the force-applying component and the stop block.

[0015] Optionally, the first opening is located at the center of the top of the second shell cover, and the force-applying component is a handle.

[0016] According to the technical solution of the present invention, when assembling the puncture needle, by moving the sliding assembly, a gap is formed between the sliding assembly and the first shell cover. The puncture needle passes through this gap, and the sliding assembly and the first shell body clamp the puncture needle in this gap, thereby completing the assembly of the puncture needle and the buoy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] For purposes of illustration and not limitation, the present invention will now be described in accordance with the preferred embodiments of the present invention, particularly with reference to the accompanying drawings, in which:

[0018] Figure 1 is a schematic structural view of the buoy for the puncture needle provided by the present invention in a closed state.

[0019] Figure 2 is a schematic structural view of the buoy for the puncture needle provided by the present invention in an unfolded state.

[0020] Figure 3 is an exploded structural view of the buoy for the puncture needle provided by the present invention.

[0021] Figure 4 is a schematic structural view of the buoy for the puncture needle provided by the present invention in a closed state.

[0022] Figure 5 is a schematic structural view of the buoy for the puncture needle provided by the present invention in an unfolded state.

[0023] Figure 6 is an exploded structural view of the buoy for the puncture needle provided by the present invention.

[0024] Figure 7 It is a schematic structural diagram after the buoy for the puncture needle provided by the present invention is assembled with the puncture needle.

[0025] Explanation of reference numerals

[0026] 1 - First shell cover, 11 - Clamping plate, 12 - Card slot, 13 - Slide groove, 2 - Sliding assembly, 21 - Lock block, 22 - Handle, 3 - Compression spring, 4 - Second shell cover, 41 - Lock hook, 42 - Stop block, 43 - First opening, 44 - Second opening, 5 - Puncture needle. Specific embodiments

[0027] The following describes exemplary embodiments of the present invention with reference to the accompanying drawings. Various details of the embodiments of the present invention are included to facilitate understanding, and they should be considered merely exemplary. Therefore, those of ordinary skill in the art should recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted below.

[0028] As Figures 1 to 7 shown, the buoy for the puncture needle in the embodiment of the present invention includes a first shell cover 1, a second shell cover 4, and a sliding assembly 2. The first shell cover 1 and the second shell cover 4 are fixedly connected to form a shell. The sliding assembly 2 penetrates the second shell cover 4 along the length direction of the second shell cover 4 and is movably arranged in the first shell cover 1. The end of the sliding assembly 2 and the first end of the first shell cover 1 are used to clamp the puncture needle. The function of the second shell cover 4 is to limit the position of the sliding assembly 2, so that the sliding assembly 2 is not easily separated from the first shell cover 1.

[0029] The buoy further includes an elastic member, a force - applying member, and a guiding member. When the force - applying member is subjected to an external force, under the guiding action of the guiding member, the sliding assembly 2 is driven to move away from the first end of the first shell cover 1. An elastic member is arranged in the shell, and under the action of the elastic member, a clamping force can be formed between the end of the sliding assembly 2 and the first end of the first shell cover 1.

[0030] When assembling the puncture needle 5, by applying a force to the force - applying member, the sliding assembly 2 moves in the direction away from the first end of the first shell cover 1 under the guiding action of the guiding member, so that a gap is formed between the sliding assembly 2 and the first shell cover 1. The puncture needle 5 penetrates through this gap. Under the action of the elastic member or friction force, the sliding assembly 2 and the first shell cover 1 clamp the puncture needle, so that the puncture needle 5 is assembled between the sliding assembly 2 and the first shell cover 1. Moreover, the size of this gap can be adjusted by the force - applying member, so that the buoy can be used to assemble puncture needles 5 with different diameters.

[0031] The first housing cover 1 includes a substrate and a clamping plate 11. The first end of the clamping plate 11 is connected to the end of the substrate, and the second end of the clamping plate 11 serves as the first end of the first housing cover 1 and is located above the substrate; it is used to limit the sliding component 2 and reduce the risk of the sliding component 2 sliding out of the chute 13; the guiding component is the chute 13, which is arranged on the substrate along the length direction of the substrate. The chute 13 is located in the middle of the substrate, and the length of the chute 13 is the same as the length of the substrate; on the substrate, one or more clamping grooves 12 are arranged on both sides of the chute 13 for fixing the second housing cover 4 on the first housing cover 1. The clamping plate 11 is an arc-shaped plate or a folded plate, including but not limited to this. The number of clamping grooves 12 on both sides of the chute 13 is the same and is arranged symmetrically about the chute 12. For example, when the number of clamping grooves 12 is 4, on the substrate, the number of clamping grooves 12 on both sides of the chute 13 is two each. With such a setting, the connection between the second housing cover 4 and the second housing cover 4 can be strengthened, so that the sliding component 2 is not easily deviated from the chute 13.

[0032] The second housing cover 4 is also provided with a locking hook 41 that cooperates with the clamping groove 12. Through the cooperation of the clamping groove 12 and the locking hook 41, the second housing cover 4 is fixed on the first housing cover 1.

[0033] On the top of the second housing cover 4, a first opening 43 is arranged along the length direction. The first opening 43 is located in the center of the top of the second housing cover 4. One end of the second housing cover 4 close to the clamping plate 11 is a second opening 44, and a stop block 42 is arranged at the end of the second housing cover 4 far from the clamping plate 11. The stop block 42 covers the end of the substrate. The stop block 42 can prevent the sliding component 2 from disengaging from the chute 13. The second opening 44 can be an arc-shaped opening, or a rectangular or polygonal opening. The shape of the first opening 43 can be oval, circular, rectangular, and polygonal, etc. The length dimension of the first opening 43 can be determined according to actual needs. When the diameter of the puncture needle 5 is larger, the size of the gap formed between the first housing cover 1 and the sliding component 2 is larger, and the length of the first opening 43 is also larger.

[0034] The first end of the sliding component 2 is a force-applying component, and the second end is a locking block 21. The force-applying component and the locking block 21 are connected by a sliding body. The sliding body penetrates through the second opening 44 and is movably arranged in the chute 13. The locking block 21 is located outside the second housing cover 4; the force-applying component is located inside the second housing cover 4 and extends out of the first opening 43. The elastic component is a compression spring 3, which is arranged between the force-applying component and the stop block 42. The force-applying component is a handle 22. That is, one end of the compression spring 3 abuts against the stop block 42, and the other end abuts against the handle 22.

[0035] When the buoy of the present invention is assembled with the puncture needle 5, the user pushes the handle 22 to move towards the compression spring 3 (the compression spring 3 is compressed), the locking block 21 is separated from the clamping plate 11, and the sliding body moves along the chute 13 towards the side away from the clamping plate 11 until the gap between the locking block 21 and the clamping plate 11 is greater than the diameter of the puncture needle 5. Then the user stops pushing the handle 22, and then penetrates the puncture needle 5 through this gap. After adjusting the position of the puncture needle 5, the user releases the handle 22. Due to the thrust of the compression spring 3, the sliding body moves along the chute 13 towards the puncture needle 5 until the locking block 21 moves to the position of the puncture needle 5 and stops. Due to the thrust of the compression spring 3, the locking block 21 and the clamping plate 11 clamp the puncture needle 5. When the puncture operation is over, the user pushes the handle 22 to move towards the compression spring 3, and the locking block 21 moves away from the puncture needle 5, and the puncture needle 5 can be taken away from the buoy.

[0036] The above specific embodiments do not constitute a limitation to the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can occur depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A buoy for a puncture needle, characterized in that, It includes a first shell cover, a second shell cover, a force - applying component, a guiding component, and a sliding assembly, where: The first shell cover and the second shell cover are fixedly connected to form a shell; The sliding assembly penetrates the second shell cover along the length direction of the second shell cover and is movably arranged in the first shell cover. The end of the sliding assembly and the first end of the first shell cover are used to clamp the puncture needle; When assembling the puncture needle, by applying force to the force - applying component, under the guiding action of the guiding component, the sliding assembly moves in a direction away from the first end of the first shell cover, so that a gap is formed between the sliding assembly and the first shell cover.

2. The buoy for a puncture needle according to claim 1, wherein, It further includes an elastic component. When the force - applying component is subjected to an external force, under the guiding action of the guiding component, it drives the sliding assembly away from the first end of the first shell cover; An elastic component is arranged in the shell, and under the action of the elastic component, a clamping force can be formed between the end of the sliding assembly and the first end of the first shell cover.

3. The buoy for a puncture needle according to claim 2, wherein The first shell cover includes a base plate and a clamping plate; The first end of the clamping plate is connected to the end of the base plate, and the second end, as the first end of the first shell cover, is located above the base plate; The guiding component is a chute, which is arranged on the base plate along the length direction of the base plate.

4. The buoy for a puncture needle according to claim 3, characterized in that, The clamping plate is an arc - shaped plate or a folded - shaped plate.

5. The buoy for a puncture needle according to claim 3, wherein The chute is located in the middle of the base plate and has the same length as the base plate; One or more card slots are arranged on both sides of the chute.

6. The buoy for a puncture needle according to claim 4, characterized in that, The number of card slots on both sides of the chute is the same.

7. The buoy for a puncture needle according to claim 6, characterized in that, The card slots on both sides of the chute are symmetrically arranged with respect to the axis of symmetry of the chute.

8. The buoy for a puncture needle according to claim 5, characterized in that, A locking hook matching the card slot is arranged on the second shell cover to fix the second shell cover on the first shell cover.

9. The buoy for a puncture needle according to claim 3, wherein, On the top of the second shell cover, a first opening is arranged along the length direction of the second shell cover. One end of the second shell cover close to the clamping plate is a second opening, and a stop block is arranged at the end of the second shell cover far from the clamping plate, and the stop block covers the end of the base plate; The first end of the sliding assembly is a force - applying component, the second end is a locking block, and the force - applying component and the locking block are connected by a sliding body; The sliding body penetrates the second opening and is movably arranged in the chute. The locking block is located outside the second shell cover; the force - applying component is located inside the second shell cover and extends out from the first opening; The elastic component is a compression spring, which is arranged between the force - applying component and the stop block.

10. The buoy for a puncture needle according to claim 9, characterized in that, The first opening is located in the center of the top of the second shell cover, and the force - applying component is a handle.

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