Nasal turbinate blood taking needle guard

Abstract

The utility model relates to the technical field of medical instruments, and provides a turbinate blood taking needle guard which comprises a three-edged needle, and an inner sleeve used for fixing the three-edged needle is arranged on the outer side of the three-edged needle in a sleeved mode. According to the turbinate blood taking needle sleeve, a three-edged needle inserted into the inner sleeve can be more conveniently fixed through the clamping plate in the inner sleeve, the three-edged needle can be more conveniently replaced, the three-edged needle is driven by the inner sleeve to slide in the outer sleeve, the exposed length of the three-edged needle is adjusted, and due to the fact that tail thorns on the inner sleeve are clamped through the adjusting ring, the tail thorns can be conveniently fixed and replaced. When the adjusting ring slides on the outer sleeve, the inner sleeve can be driven to slide to a proper distance in the outer sleeve, and the adjusting ring can be fixed on the outer sleeve through the fixing assembly on the adjusting ring, so that the outward leakage length of the three-edged needle is fixed, and the distance of the three-edged needle in the outer sleeve through the inner sleeve can be checked through the visual window. The convenience of adjusting the push-out distance of the three-edged needle by the whole needle sleeve is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a nasal turbinate blood collection needle sleeve. Background Technology

[0002] A nasal turbinate blood collection needle sheath is a needle sheath that is placed over the outside of the three-edged needle used for puncturing and collecting blood from the nasal turbinate.

[0003] Chinese patent disclosure CN221770105U discloses a bloodletting needle for traditional Chinese medicine bloodletting therapy. The patent describes a needle comprising: "a syringe, a piston disc longitudinally slidably disposed within the syringe cavity, a push rod fixedly mounted on the upper end of the piston disc, a movable handle rotatably mounted on the upper end of the push rod, and a needle fixed to the lower center of the piston disc via a needle seat; a transparent cover detachably fitted onto the lower center of the syringe, with a sponge for blood absorption fixedly mounted on the lower edge of the inner ring of the transparent cover. This design protects the needle and provides vacuum suction to improve patient comfort." However, this bloodletting needle punctures by sliding the needle outwards via the push rod. Since different lesions require different needle protrusion lengths, and the protrusion length is not easily observed or adjusted, the convenience of using the needle is reduced. Utility Model Content

[0004] The purpose of this utility model is to provide a nasal turbinate blood collection needle sleeve, which solves the problem in related technologies that the required length of needle protrusion varies for different lesions, and the length of needle protrusion is not easy to check and adjust, thus reducing the convenience of needle use.

[0005] The technical solution of this utility model is as follows:

[0006] A nasal turbinate blood collection needle sleeve includes a three-edged needle. An inner sleeve for fixing the three-edged needle is fitted on the outer side of the needle. An outer sleeve for picking up the needle is fitted on the outer side of the inner sleeve. An adjusting ring for adjusting distance is fitted on the outer side of the outer sleeve. Two tail spikes for engaging with the adjusting ring are rotatably connected to the inner wall of the bottom end of the inner sleeve. A limiting spring for pushing the tail spike outward is fixedly installed on one side of each tail spike. One end of the limiting spring is fixedly connected to the inner wall of the bottom end of the inner sleeve. A clamping assembly for fixing the three-edged needle is provided on the inner wall of the inner sleeve. A pushing assembly for pushing the inner sleeve is provided on the inner wall of the bottom end of the outer sleeve. A fixing assembly for fixing the adjusting ring to the outer sleeve is provided on the inner wall of the adjusting ring.

[0007] Preferably, the clamping assembly includes two clamping plates slidably connected to the inner sidewall of the inner sleeve, and a limiting tube is fixedly installed on the outer side of both ends of the two clamping plates. A limiting post is slidably connected to the inner sidewall of the limiting tube, and one end of the limiting post is fixedly connected to the inner sidewall of both ends of the inner sleeve.

[0008] Preferably, the clamping assembly further includes two first springs fixedly installed on the outer sides of both ends of the clamping plate, and one end of each of the two first springs is fixedly connected to the inner walls of both ends of the inner sleeve.

[0009] Preferably, the pushing assembly includes a top plate slidably connected to the inner wall of the outer sleeve, and a pushing spring is fixedly installed at the bottom end of the top plate, with the bottom end of the pushing spring fixedly connected to the inner wall of the bottom end of the outer sleeve.

[0010] Preferably, the fixing assembly includes two internal racks slidably connected to the inner sidewall of the adjusting ring, and multiple fixing rods are fixedly installed at one end of the two internal racks.

[0011] Preferably, the fixing assembly further includes two external racks slidably connected to the inner sidewall of the adjusting ring, and two second springs are fixedly installed at one end of the two external racks, with one end of the two second springs fixedly connected to the inner sidewall of the adjusting ring.

[0012] Preferably, the fixing assembly further includes two gears rotatably connected to the inner sidewall of the adjusting ring, the two gears respectively meshing with the inner rack and the outer rack.

[0013] Preferably, the outer sleeve has multiple fixing grooves on its outer side for fixing the rod to engage, and the outer sleeve has viewing windows on both sides for viewing the position of the inner sleeve.

[0014] The beneficial effects of this utility model are:

[0015] The clamping plate inside the inner sleeve makes it easier to fix the triangular needle inserted inside the inner sleeve and facilitates the replacement of the triangular needle. The inner sleeve drives the triangular needle to slide inside the outer sleeve, adjusting the exposed length of the triangular needle. Since the tail bar on the inner sleeve is engaged by the adjusting ring, when the adjusting ring slides on the outer sleeve, it can drive the inner sleeve to slide to a suitable distance inside the outer sleeve. The adjusting ring can also be fixed to the outer sleeve by the fixing component on the adjusting ring, so that the exposed length of the triangular needle is fixed. The distance of the triangular needle through the inner sleeve inside the outer sleeve can be viewed through the viewing window, improving the convenience of adjusting the extension distance of the triangular needle by the overall needle sleeve. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the outer sleeve of this utility model;

[0019] Figure 3 This is a schematic diagram of the triangular needle structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the clamping component structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the inner sleeve of this utility model;

[0022] Figure 6 This is a schematic diagram of the internal structure of the adjusting ring of this utility model;

[0023] In the diagram: 1. Triangular needle; 2. Inner sleeve; 21. Tail spike; 22. Limiting spring; 3. Outer sleeve; 31. Fixing groove; 32. Viewing window; 4. Adjusting ring; 5. Clamping assembly; 51. Clamping plate; 52. Limiting tube; 53. Limiting post; 54. First spring; 6. Pushing assembly; 61. Top plate; 62. Pushing spring; 7. Fixing assembly; 71. Inner rack; 72. Fixing rod; 73. Outer rack; 74. Second spring; 75. Gear. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0025] Please see Figure 1 , Figure 2 , Figure 3 as well as Figure 5This embodiment proposes a nasal turbinate blood collection needle sleeve, including a triangular needle 1. An inner sleeve 2 for fixing the triangular needle 1 is fitted over the outer side of the triangular needle 1. An outer sleeve 3 for picking up the needle is fitted over the outer side of the inner sleeve 2. An adjusting ring 4 for adjusting the distance is fitted over the outer sleeve 3. Two tail spikes 21 are rotatably connected to the inner wall of the bottom end of the inner sleeve 2 for engaging with the adjusting ring 4. A limiting spring 22 for pushing the tail spike 21 outward is fixedly installed on one side of each tail spike 21. One end of the limiting spring 22 is connected to the inner wall of the bottom end of the inner sleeve 2. The inner sleeve 2 is fixedly connected to the wall. The inner wall of the inner sleeve 2 is provided with a clamping component 5 for fixing the triangular needle 1. The inner wall of the bottom end of the outer sleeve 3 is provided with a pushing component 6 for pushing the inner sleeve 2. The inner wall of the adjusting ring 4 is provided with a fixing component 7 for fixing to the outer sleeve 3. Viewing windows 32 for viewing the position of the inner sleeve 2 are provided on both sides of the outer sleeve 3. When using the triangular needle 1, it can be inserted into the inner sleeve 2, and the fixing component 7 inside the inner sleeve 2 will hold the triangular needle 1 inside the inner sleeve 2. The inner sleeve 2 is fixed, and the tail spike 21 at the end of the inner sleeve 2 rotates outward under the action of the limiting spring 22, thereby engaging with the adjusting ring 4. The pushing component 6 maintains the pushing force on the inner sleeve 2 towards the front end of the outer sleeve 3, so that the sliding distance of the inner sleeve 2 inside the outer sleeve 3 can be adjusted by the sliding of the adjusting ring 4 outside the outer sleeve 3. This makes it easier to adjust the piercing distance of the triangular needle 1 according to the specific use. The sliding distance of the triangular needle 1 following the inner sleeve 2 inside the outer sleeve 3 can be viewed through the viewing window 32. When the adjusting ring 4 drives the inner sleeve 2 to slide to the appropriate position inside the outer sleeve 3, the adjusting ring 4 and the outer sleeve 3 can be fixed by the fixing component 7 inside the adjusting ring 4, thereby fixing the exposed length of the triangular needle 1. The triangular needle 1 can be directly removed from the inner sleeve 2 for replacement. The inner sleeve 2 can be pushed inward by the tail spike 21, so that the inner sleeve 2 can slide outward from the outer sleeve 3 for disassembly, making it easier to disassemble the whole.

[0026] Please see Figure 1 , Figure 2 , Figure 4 as well as Figure 6This embodiment proposes a nasal turbinate blood collection needle sleeve. The clamping assembly 5 includes two clamping plates 51 slidably connected to the inner wall of the inner sleeve 2. Limiting tubes 52 are fixedly installed on the outer sides of both ends of the two clamping plates 51. Limiting posts 53 are slidably connected to the inner walls of the limiting tubes 52. One end of the limiting post 53 is fixedly connected to the inner walls of both ends of the inner sleeve 2. The clamping assembly 5 also includes two first springs 54 fixedly installed on the outer sides of both ends of the clamping plates 51. One end of the two first springs 54 is fixedly connected to the inner walls of both ends of the inner sleeve 2. After the triangular needle 1 is inserted into the inner sleeve 2, the elastic force of the first springs 54 on the clamping plates 51 and the clamping plates 51 driving the limiting tubes 52 to move outside the limiting posts 53 can be achieved. The sliding mechanism allows the clamping plate 51 to slide outward and fit against the outer side of the triangular needle 1, thus clamping the triangular needle 1 and fixing it inside the inner sleeve 2. The pushing component 6 includes a top plate 6 slidably connected to the inner wall of the outer sleeve 3. A pushing spring 62 is fixedly installed at the bottom end of the top plate 6, and the bottom end of the pushing spring 62 is fixedly connected to the inner wall of the bottom end of the outer sleeve 3. The inner sleeve 2 inside the outer sleeve 3 can maintain an outward pushing force on the inner sleeve 2 through the action of the pushing spring 62 on the top plate 6, making it easier for the triangular needle 1 to move outward. The fixing component 7 includes two internal racks 71 slidably connected to the inner wall of the adjusting ring 4. Multiple fixing rods are fixedly installed at one end of the two internal racks 71. 72. The fixing assembly 7 also includes two external racks 73 slidably connected to the inner wall of the adjusting ring 4. Two second springs 74 are fixedly installed at one end of the two external racks 73, and one end of the two second springs 74 is fixedly connected to the inner wall of the adjusting ring 4. The fixing assembly 7 also includes two gears 75 rotatably connected to the inner wall of the adjusting ring 4. The two gears 75 mesh with the inner rack 71 and the outer rack 73 respectively. The outer side of the outer sleeve 3 is provided with a plurality of fixing grooves 31 for engaging the fixing rod 72. When the length of the triangular needle 1 that needs to be exposed is adjusted by sliding the adjusting ring 4 on the outer sleeve 3, thereby driving the triangular needle 1 to adjust the exposed length through the inner sleeve 2, the two external racks 73 on the adjusting ring 4 can be moved into the adjusting ring 4. The push causes the gear 75 inside the adjusting ring 4 to rotate, thereby driving the inner rack 71 to slide into the adjusting ring 4, causing its front fixing rod 72 to disengage from the fixing groove 31 on the outer sleeve 3. The adjusting ring 4 can then slide on the outer sleeve 3. After the inner sleeve 2 is slid to the appropriate position by the adjusting ring 4, it can be released from the outer rack 73. The outer rack 73 slides in the opposite direction due to the elastic force of the second spring 74, which causes the inner rack 71 to drive the fixing rod 72 to slide in the opposite direction. The fixing rod 72 is then inserted into the fixing groove 31 on the outer sleeve 3, thereby fixing the fixing ring and the outer sleeve 3, and thus fixing the external leakage distance between the inner sleeve 2 and the triangular needle 1.

[0027] In this embodiment, during use, the clamping plate 51 inside the inner sleeve 2 makes it easier to fix the triangular needle 1 inserted inside the inner sleeve 2 and also makes it easier to replace the triangular needle 1. By pushing the spring 62, the top plate 6 acts on the inner sleeve 2, allowing the inner sleeve 2 to slide the triangular needle 1 inside the outer sleeve 3, thus adjusting the exposed length of the triangular needle 1. Since the tail barb 21 on the inner sleeve 2 is engaged by the adjusting ring 4, when the adjusting ring 4 slides on the outer sleeve 3, it can drive the inner sleeve 2 to slide to a suitable distance inside the outer sleeve 3. At this point, the second spring 74 on the adjusting ring 4 can drag the outer rack 73 outward, so that the inner rack 71 on the adjusting ring 4 can drive the fixing rod 72 to insert into the fixing groove 31 on the outer sleeve 3, fixing the adjusting ring 4 on the outer sleeve 3, so that the length of the three-edged needle 1 protruding outward is fixed, and the distance of the three-edged needle 1 through the inner sleeve 2 inside the outer sleeve 3 is more easily viewed through the viewing window 32, improving the convenience of adjusting the distance of the three-edged needle 1 by the overall needle sheath, thus making it easier to perform operations such as puncture and blood collection on the nasal turbinate.

[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A nasal turbinate blood collection needle sheath, comprising a three-edged needle (1), characterized in that, The outer side of the triangular needle (1) is fitted with an inner sleeve (2) for fixing the triangular needle (1). The outer side of the inner sleeve (2) is fitted with an outer sleeve (3) for picking up. The outer side of the outer sleeve (3) is fitted with an adjusting ring (4) for adjusting the distance. The inner wall of the bottom end of the inner sleeve (2) is rotatably connected with two tail spikes (21) for engaging with the adjusting ring (4). A limiting spring (22) for pushing the tail spike (21) outward is fixedly installed on one side of the tail spike (21). One end of the limiting spring (22) is fixedly connected to the inner wall of the bottom end of the inner sleeve (2). The inner wall of the inner sleeve (2) is provided with a clamping component (5) for fixing the triangular needle (1). The inner wall of the bottom end of the outer sleeve (3) is provided with a pushing component (6) for pushing the inner sleeve (2). The inner wall of the adjusting ring (4) is provided with a fixing component (7) for fixing with the outer sleeve (3).

2. The nasal turbinate blood collection needle sleeve according to claim 1, characterized in that, The clamping assembly (5) includes two clamping plates (51) slidably connected to the inner wall of the inner sleeve (2). Limiting tubes (52) are fixedly installed on the outer sides of both ends of the two clamping plates (51). Limiting posts (53) are slidably connected to the inner wall of the limiting tubes (52). One end of the limiting post (53) is fixedly connected to the inner walls of both ends of the inner sleeve (2).

3. A nasal turbinate blood collection needle sheath according to claim 2, characterized in that, The clamping assembly (5) also includes two first springs (54) fixedly installed on the outer sides of both ends of the clamping plate (51), and one end of the two first springs (54) is fixedly connected to the inner walls of both ends of the inner sleeve (2).

4. A nasal turbinate blood collection needle sleeve according to claim 1, characterized in that, The pushing assembly (6) includes a top plate (61) slidably connected to the inner wall of the outer sleeve (3), and a pushing spring (62) is fixedly installed at the bottom end of the top plate (61). The bottom end of the pushing spring (62) is fixedly connected to the inner wall of the bottom end of the outer sleeve (3).

5. A nasal turbinate blood collection needle sheath according to claim 1, characterized in that, The fixing component (7) includes two internal racks (71) that are slidably connected to the inner wall of the adjusting ring (4), and multiple fixing rods (72) are fixedly installed at one end of the two internal racks (71).

6. A nasal turbinate blood collection needle sheath according to claim 5, characterized in that, The fixing assembly (7) also includes two external racks (73) that are slidably connected to the inner wall of the adjusting ring (4). Two second springs (74) are fixedly installed at one end of the two external racks (73), and one end of the two second springs (74) is fixedly connected to the inner wall of the adjusting ring (4).

7. A nasal turbinate blood collection needle sheath according to claim 6, characterized in that, The fixing assembly (7) also includes two gears (75) rotatably connected to the inner wall of the adjusting ring (4), and the two gears (75) mesh with the inner rack (71) and the outer rack (73) respectively.

8. A nasal turbinate blood collection needle sheath according to claim 5, characterized in that, The outer sleeve (3) has multiple fixing grooves (31) for engaging the fixing rod (72) on its outer side, and viewing windows (32) for viewing the position of the inner sleeve (2) are provided on both sides of the outer sleeve (3).

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