Puncture needle positioning, fixing and supporting device

Abstract

The invention discloses a puncture needle positioning, fixing and supporting device. Comprising a guide cylinder, a fixing frame, an upper-layer supporting frame arranged on the fixing frame in a sliding mode, an upper-layer positioning universal ring arranged on the upper-layer supporting frame in a sliding mode, a lower-layer supporting frame arranged on the fixing frame in a sliding mode and located below the first supporting frame, and a lower-layer positioning universal ring arranged on the lower-layer supporting frame in a sliding mode. And the working position of the guide cylinder is determined through the position of the upper-layer positioning universal ring and the position of the lower-layer positioning universal ring. The device is reliable in structure and good in use performance, can establish a channel with a definite and fixed direction for a puncture needle and fix the puncture direction of the puncture needle by respectively fixing the upper and lower layers of positioning universal rings and then inserting the guide cylinder into the two positioning universal rings and locking the guide cylinder, is convenient to operate, effectively shortens the puncture time and improves the puncture efficiency. The puncture risk is reduced, and the puncture success rate is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary devices, and particularly relates to a puncture needle positioning, fixing and supporting device. Background Art

[0002] In traditional manual puncture operations, the operator usually uses one hand to fix the skin at the puncture site and holds the puncture needle with the other hand to perform the puncture. Since the puncture insertion direction is not fixed, this operation often requires multiple attempts. After each attempt, it is necessary to observe the position of the puncture needle by scanning CT images to ensure whether it accurately reaches the target area. Due to the need for multiple insertions and scanning observations, the entire puncture process takes a long time, increasing the pain and discomfort of the patient, and multiple puncture attempts increase the risk of damaging surrounding normal tissues, which may lead to complications such as bleeding and infection. Moreover, due to the non-fixed insertion direction, it is often difficult for the operator to accurately reach the target area at one time, resulting in a relatively high puncture failure rate. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a puncture needle positioning, fixing and supporting device.

[0004] The technical solution of the present invention for solving the above technical problems is as follows: A puncture needle positioning, fixing and supporting device includes a guide tube, a fixing frame, an upper support frame slidably arranged on the fixing frame, an upper positioning universal ring slidably arranged on the upper support frame, a lower support frame slidably arranged on the fixing frame and located below the first support frame, and a lower positioning universal ring slidably arranged on the lower support frame. The inside of the guide tube is a hollow structure, and the working position of the guide tube is determined by the positions of the upper positioning universal ring and the lower positioning universal ring. In the use state, one end of the guide tube is located on the upper positioning universal ring, and the other end of the guide tube passes through the lower positioning universal ring. The guide tube is configured as a channel for the puncture needle to pass through.

[0005] Further, both the upper support frame and the lower support frame include a support frame slidably arranged on the fixing frame through a sliding sleeve and a sliding frame slidably arranged on the support frame. The upper positioning universal ring and the lower positioning universal ring are slidably arranged on the sliding frame, and the sliding directions of the sliding frames are respectively at 90° to the sliding direction of the upper positioning ring and the sliding direction of the lower positioning ring.

[0006] Further, both the upper positioning universal ring and the lower positioning universal ring include an annular plate sliding along the sliding frame and having a first cavity, a first rotating plate rotatably arranged in the first cavity through a rotating shaft, a second cavity opened on the first rotating plate, a second rotating plate rotatably arranged in the second cavity through a rotating shaft, and a fixing hole arranged on the second rotating plate for the guide tube to pass through. The rotating directions of the first rotating plate and the second rotating plate are at 90°.

[0007] Further, both the upper positioning universal ring and the lower positioning universal ring include a sliding ring slidably sleeved on the sliding frame and having a rotating head, a first circular plate rotatably fitted on the rotating head and having a cavity inside, and a second circular plate rotatably fitted in the cavity of the first circular plate. Fixing holes are provided on the second circular plate. The rotation directions of the first circular plate and the second circular plate are at 90°. When locking is required, the sliding ring is locked on the sliding frame by bolts or screws.

[0008] Further, locking type clamping plates are provided at the four corners of the fixing frame, and the fixing frame is locked and installed on the hospital bed through the locking type clamping plates.

[0009] Further, the locking type clamping plate includes a spring clip having a first clamping plate and a second clamping plate, and a locking member provided on the spring clip. The locking member penetrates through the first clamping plate and is locked on the second clamping plate.

[0010] Further, the guide tube includes a guide rod with a hollow structure inside, a head provided at the top of the guide rod, and a sliding cylinder sliding along the guide rod. A fastener is provided on the sliding cylinder. The head is located on the upper positioning universal ring, the sliding cylinder is located on the lower positioning universal ring, and the guide rod penetrates through the upper positioning universal ring and the lower positioning universal ring.

[0011] Further, an auxiliary telescopic support is also included. The auxiliary telescopic support includes a support, a hook provided at one end of the support, a rod that can perform telescopic movement along the support provided at the other end of the support, and a collar provided at the end of the rod. A locking member for locking the position of the rod is provided on the support.

[0012] Further, an auxiliary telescopic support is also included. The auxiliary telescopic support includes a support, a collar provided at one end of the support, a rod that can perform telescopic movement along the support provided at the other end of the support, and a hook provided at the end of the rod.

[0013] The present invention has the following beneficial effects: The puncture needle positioning and fixing support device provided by the present invention has a reliable structure and good use performance. This device can respectively fix the upper and lower positioning universal rings, and then insert the guide tube into the two positioning universal rings. After locking the guide tube, a channel with a clear and fixed direction can be established for the puncture needle, fixing the puncture direction of the puncture needle. The operation is convenient, effectively shortening the puncture time, reducing the puncture risk, and improving the puncture success rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present invention;

[0015] Figure 2 is the front view of the present invention;

[0016] Figure 3 is a schematic structural diagram of the upper support frame or the lower support frame in the present invention;

[0017] Figure 4 This is a schematic diagram of the usage state of the present invention;

[0018] Figure 5 This is a schematic diagram of the structure of the upper positioning universal ring or the lower positioning universal ring in the present invention Figure 1 ;

[0019] Figure 6 This is a schematic diagram of the structure of the upper positioning universal ring or the lower positioning universal ring in the present invention Figure 2 ;

[0020] Figure 7 This is a schematic diagram of the mating structure of the guide cylinder with the upper positioning universal ring and the lower positioning universal ring in the present invention;

[0021] Figure 8 This is a schematic diagram of the structure of the guide cylinder in the present invention;

[0022] Figure 9 This is a schematic diagram of the structure of the locking type clamping plate in the present invention;

[0023] Figure 10 This is a schematic diagram of the structure of the auxiliary telescopic bracket in the present invention Figure 1 ;

[0024] Figure 11 This is a schematic diagram of the structure of the auxiliary telescopic bracket in the present invention Figure 2 ;

[0025] Figures 1 to 11 The reference numerals shown in the figure are respectively represented as: 1-guide cylinder, 2-fixed frame, 3-upper support frame, 4-upper positioning universal ring, 5-lower support frame, 6-lower positioning universal ring, 30-sliding sleeve, 31-support frame, 32-sliding frame, 40-first cavity, 41-ring plate, 42-rotating shaft, 43-first rotating plate, 44-second cavity, 45-second rotating plate, 46-fixed hole, 60-rotating head, 61-sliding ring, 62-first circular plate, 63-second circular plate, 7-locking type clamping plate, 70-first clamping plate, 71-second clamping plate, 72-locking member, 10-guide rod, 11-end head, 12-sliding cylinder, 8-auxiliary telescopic bracket, 80-support, 81-hook, 82-support rod, 83-sleeve ring. Specific embodiments

[0026] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0027] Such as Figures 1 to 4As shown in the figure, a puncture needle positioning, fixing and supporting device includes a guide tube 1, a fixing frame 2, an upper support frame 3 slidably arranged on the fixing frame 2, an upper positioning universal ring 4 slidably arranged on the upper support frame 3, a lower support frame 5 slidably arranged on the fixing frame 2 and located below the upper positioning universal ring 4, and a lower positioning universal ring 6 slidably arranged on the lower support frame 5. The inside of the guide tube 1 is a hollow structure. The working position of the guide tube 1 is determined by the positions of the upper positioning universal ring 4 and the lower positioning universal ring 6. In the use state, one end of the guide tube 1 is located on the upper positioning universal ring 4, and the other end of the guide tube 1 passes through the lower positioning universal ring 6. The guide tube 1 is configured as a channel through which the puncture needle passes. The fixing frame 2 is the cornerstone of the whole device. It provides a stable foundation, reduces shaking during operation, and enables the upper support frame 3 and the lower support frame 5 to slide on it, thereby adjusting the up and down position of the guide tube 1. The puncture needle performs a puncture operation through the hollow structure of the guide tube 1. Through the adjustment of the universal ring, the position of the guide tube 1 is ensured to be accurate. The sliding design of the universal ring allows multi-angle adjustment to adapt to different puncture requirements. The guide tube 1 is a separate component, its inside is a hollow structure, and the diameter of its hollow hole has different specifications. After the positions of the upper positioning universal ring 4 and the lower positioning universal ring 6 are fixed, the guide tube 1 is inserted from the upper positioning universal ring 4 into the lower positioning universal ring 6 to establish a puncture channel for the puncture needle.

[0028] As Figure 3As shown in the figure, both the upper support frame 3 and the lower support frame 5 include a support frame 31 slidably arranged on the fixed frame 2 through a sliding sleeve 30 and a sliding frame 32 slidably arranged on the support frame 31. The upper positioning universal ring 4 and the lower positioning universal ring 6 are slidably arranged on the sliding frame 32, and the sliding directions of the sliding frame 32 are respectively at 90° to the sliding directions of the upper positioning ring and the lower positioning ring. The sliding directions of the support frame 31 and the sliding frame 32 are perpendicular to each other. Combining with the sliding of the universal ring, precise positioning in multiple directions is achieved. Specifically, the sliding of the support frame 31 along the fixed frame 2 realizes the height adjustment in the vertical direction, the sliding of the sliding frame 32 along the support frame 31 realizes the adjustment in the horizontal direction, and the sliding of the universal ring along the sliding frame 32 realizes the adjustment in the longitudinal direction, respectively forming three directions of sliding, so as to realize the reliable and precise positioning of the universal ring, and further provide reliable puncture positioning for the puncture needle. During use, the preliminary positioning is realized by adjusting the position of the support frame 31 of the upper and lower support frames 5 on the fixed frame 2. The positioning in the second direction is realized by adjusting the position of the sliding frame 32 on the support frame 31. The final precise positioning is realized by adjusting the positions of the upper and lower positioning universal rings 6 on the sliding frame 32. In addition, in this scheme, the sliding mode adopts the cooperation form of a slider and a slide rail. And, in order to improve the convenience of operation, the motor drive form is adopted to drive the slider to move. A pulley is arranged at the output end of the motor, a conveyor belt is arranged on the pulley, and the slider is arranged on the conveyor belt. Thus, when the motor is started, the slider can be slid under the drive of the conveyor belt, and further drive the movement of the corresponding components on the slider.

[0029] It should be noted that scales are respectively arranged on each rod of the fixed frame, on the upper support frame and on the lower support frame. Through the scales, the positions of the positioning universal rings can be intuitively displayed. Secondly, in the sliding connection structures in this scheme, they all have a locking function. Their sliding mode adopts the cooperation structure of a slider and a slide rail, and their locking structure adopts a corresponding locking form that can lock the slider and the slide rail. For example, screws or bolts are arranged on the slider. When it needs to be locked after moving to the specified position, the bolt is rotated so that the end of the bolt presses tightly against the slide rail, thus realizing the overall locking and positioning function. When it needs to be moved, the bolt is rotated in the opposite direction so that the end of the bolt leaves the slide rail. In addition, on the components that need to be locked in the scheme, anti-slip pads (rubber pads) are respectively arranged on their locking end faces. The anti-slip pads are used to improve the anti-slip performance when the locking parts are locked, and further improve the stability.

[0030] The upper positioning universal ring and the lower positioning universal ring can be in a rectangular structure or a circular structure. As Figure 5 shown, it is in a rectangular structure; as Figure 6 shown, it is in a circular structure. Figure 7 This is the schematic diagram of the cooperation between the universal ring and the guide cylinder.

[0031] AsFigure 5 As shown, the upper positioning universal joint 4 and the lower positioning universal joint 6 both include an annular plate 41 that slides along the sliding frame 32 and has a first cavity 40, a first rotating plate 43 rotatably arranged in the first cavity 40 through a rotating shaft 42, a second cavity 44 opened on the first rotating plate 43, a second rotating plate 45 rotatably arranged in the second cavity 44 through the rotating shaft 42, and a fixing hole 46 provided on the second rotating plate 45 for the guide tube 1 to pass through. The rotating direction of the first rotating plate 43 and the rotating direction of the second rotating plate 45 are at 90°. The annular plate 41 slides along the sliding frame 32 to realize the linear position adjustment of the universal joint on the sliding frame 32. The first rotating plate 43 rotates around the rotating shaft 42 in the first cavity 40 to provide the rotational adjustment in the first direction. The second rotating plate 45 rotates around the rotating shaft 42 in the second cavity 44 to provide the rotational adjustment in the second direction perpendicular to the first rotating plate 43. The rotating directions of the first rotating plate 43 and the second rotating plate 45 are at 90°, realizing the free adjustment in multiple angles. The guide tube 1 passes through the fixing hole 46 on the second rotating plate 45. Through the adjustment of the universal joint, the guide tube 1 can be freely adjusted in the three-dimensional space to adapt to complex puncture requirements and ensure the accurate alignment of the position and angle of the guide tube 1 with the target. In this solution, the sliding mode of the annular plate along the sliding frame adopts the cooperation form of a slider and a slide rail, which is the prior art.

[0032] In addition, for the upper positioning universal joint 4 and the lower positioning universal joint 6 in the present invention, a circular structure is also provided. Specifically, as Figure 6 shown, the upper positioning universal joint 4 and the lower positioning universal joint 6 both include a sliding ring 61 that is slidably sleeved on the sliding frame 32 and has a rotating head 60, a first circular plate 62 that is rotatably fitted on the rotating head 60 and has a cavity inside, and a second circular plate 63 that is rotatably fitted in the cavity of the first circular plate 62. Moreover, both ends of the second circular plate 63 also have rotating heads 60, and through the rotational fit of the rotating heads 60 with the first circular plate 62, the second circular plate 63 can also rotate around the first circular plate 62. The rotating direction of the first circular plate 62 and the rotating direction of the second circular plate 63 are at 90°. When locking is required, the sliding ring 61 is locked on the sliding frame 32 by bolts or screws.

[0033] As Figure 8 shown, the guide tube 1 includes a guide rod 10 with a hollow structure inside, a head 11 provided at the top of the guide rod 10, and a sliding cylinder 12 that slides along the guide rod 10. A fastener 13 is provided on the sliding cylinder 12. The head 11 is located on the upper positioning universal joint 4, the sliding cylinder 12 is located on the lower positioning universal joint 6, and the guide rod 10 penetrates through the upper positioning universal joint 4 and the lower positioning universal joint 6. The sliding cylinder 12 can be adjusted accordingly on the guide rod according to the height change of the lower support frame 5. When the position is determined, the sliding cylinder 12 is locked on the sliding rod by the fastener 13. The fastener 13 uses screws or bolts.

[0034] As Figure 9As shown in the figure, locking clamps 7 are provided at the four corners of the fixing bracket 2, and the fixing bracket 2 is locked and installed on the hospital bed through the locking clamps 7. The locking clamp 7 includes a spring clip having a first clip 70 and a second clip 71, and a locking member 72 provided on the spring clip. The locking member 72 passes through the first clip 70 and is locked on the second clip 71. The fixing bracket 2 is connected to the hospital bed through the locking clamps 7 at the four corners. The locking clamp 7 is composed of a spring clip and a locking member 72, and can quickly and firmly fix the device on the hospital bed. The locking member 72 is a bolt. A hole is provided on the first clip 70, and a threaded hole that is threadedly engaged with the bolt is provided on the second clip 71. When the screw rod of the bolt passes through the hole and is engaged and locked with the threaded hole, an additional pressure is applied through the locking member 72 to ensure a more secure connection between the clip and the hospital bed.

[0035] In addition, in the present invention, when multiple needle punctures are required, after the first puncture needle is inserted into the human body through the guide tube channel, the guide tube is removed, and the puncture needle is separated from the upper and lower positioning universal rings. At this time, in order to improve the stability of the puncture needle, the present invention provides an auxiliary telescopic bracket, and the auxiliary telescopic bracket is used to assist in supporting the puncture needle. One end of the auxiliary telescopic bracket is connected to the fixing bracket of the device, and the other end is used to assist in supporting the puncture needle. Specifically, two structures are provided, as Figure 10 and Figure 11 shown.

[0036] As Figure 10 shown, the device further includes an auxiliary telescopic bracket 8. The auxiliary telescopic bracket 8 includes a support 80, a hook 81 provided at one end of the support 80, a rod 82 provided at the other end of the support 80 and capable of telescopic movement along the support 80, and a collar 83 provided at the end of the rod 82. A locking member 72 for locking the position of the rod 82 is provided on the support 80, and a fixing member is further provided at the end of the support 80 near the hook 81. A spring is provided on the end face of the fixing member. After the hook is hung on the fixing bracket, the hook is stably positioned and locked by tightening the fixing member to prevent loosening. The fixing member is a bolt or a screw. In this embodiment, the collar moves with the rod, while the hook end does not move. During use, the collar 83 is sleeved on the puncture needle, and the hook 81 is hung on the fixing bracket 2 and locked, so that the direction of the puncture needle is fixed and does not swing, which is stable and reliable.

[0037] As Figure 11 shown, the structure of the auxiliary telescopic bracket 8 in this embodiment is different from the structure of the auxiliary telescopic bracket 8 in the above embodiment. In this embodiment, the auxiliary telescopic bracket 8 includes a support 80, a collar 83 provided at one end of the support 80, a rod 82 provided at the other end of the support 80 and capable of telescopic movement along the support 80, and a hook 81 provided at the end of the rod 82. In this solution, the collar 83 end does not move, and the hook end moves with the rod.

[0038] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A puncture needle positioning and fixing support device, characterized in that: The invention comprises a guide tube (1), a fixing frame (2), an upper support frame (3) slidably arranged on the fixing frame (2), an upper positioning universal ring (4) slidably arranged on the upper support frame (3), a lower support frame (5) slidably arranged on the fixing frame (2) and located below the upper positioning universal ring (4), and a lower positioning universal ring (6) slidably arranged on the lower support frame (5). The guide tube (1) is hollow in structure. The working position of the guide tube (1) is determined by the position of the upper positioning universal ring (4) and the position of the lower positioning universal ring (6). In a use state, one end of the guide tube (1) is located on the upper positioning universal ring (4), and the other end of the guide tube (1) passes through the lower positioning universal ring (6). The guide tube (1) is configured as a channel for a puncture needle to pass through.

2. The puncture needle positioning and fixing support device according to claim 1, characterized in that: The upper support frame (3) and the lower support frame (5) both comprise a support frame (31) slidably arranged on the fixed frame (2) via a sliding sleeve (30) and a sliding frame (32) slidably arranged on the support frame (31); the upper positioning universal ring (4) and the lower positioning universal ring (6) are slidably arranged on the upper and lower sliding frames (32) respectively, and the sliding direction of the sliding frame (32) is 90 degrees to the sliding direction of the upper positioning ring and the sliding direction of the lower positioning ring respectively.

3. The puncture needle positioning and fixing support device according to claim 2, characterized in that: The upper positioning universal ring (4) and the lower positioning universal ring (6) both comprise a ring plate (41) sliding along the sliding frame (32) and having a first cavity (40), a first rotating plate (43) rotatably arranged in the first cavity (40) via a rotating shaft (42), a second cavity (44) opened on the first rotating plate (43), a second rotating plate (45) rotatably arranged in the second cavity (44) via a rotating shaft (42), and a fixing hole (46) arranged on the second rotating plate (45) and used for the guide cylinder (1) to pass through, wherein the rotation direction of the first rotating plate (43) and the rotation direction of the second rotating plate (45) are 90 degrees.

4. The puncture needle positioning and fixing support device according to claim 2, characterized in that: The upper positioning universal ring (4) and the lower positioning universal ring (6) both comprise a sliding ring (61) which is slidably mounted on the sliding frame (32) and has a rotating head (60), a first circular plate (62) which is rotatably fitted on the rotating head (60) and has a cavity inside, and a second circular plate (63) which is rotatably fitted in the cavity of the first circular plate (62). The second circular plate (63) is provided with a fixing hole (46). Both ends of the second circular plate (63) also have rotating heads (60). The second circular plate (63) is rotatably fitted with the first circular plate (62) through the rotating heads (60), so that the second circular plate (63) can also rotate around the first circular plate (62). The rotation direction of the first circular plate (62) and the rotation direction of the second circular plate (63) are 90 degrees. When locking is required, the sliding ring (61) is locked on the sliding frame (32) by bolts or screws.

5. The puncture needle positioning and fixing support device according to claim 1, characterized in that: Locking clamps (7) are provided at the four corners of the fixing frame (2), and the fixing frame (2) is locked and installed on the bed through the locking clamps (7).

6. The puncture needle positioning and fixing support device according to claim 5, characterized in that: The locking clamp (7) comprises a spring clamp having a first clamp (70) and a second clamp (71) and a locking member (72) arranged on the spring clamp. The locking member (72) passes through the first clamp (70) and is locked on the second clamp (71).

7. The puncture needle positioning and fixing support device according to claim 1, characterized in that: The guide cylinder (1) comprises a guide rod (10) with a hollow structure inside, an end head (11) arranged at the top of the guide rod (10), and a slide cylinder (12) sliding along the guide rod (10), wherein a fastener (13) is arranged on the slide cylinder (12), the end head (11) is located on an upper positioning universal ring (4), the slide cylinder (12) is located on a lower positioning universal ring (6), and the guide rod (10) passes through the upper positioning universal ring (4) and the lower positioning universal ring (6).

8. The puncture needle positioning and fixing support device according to claim 1, characterized in that: The invention also comprises an auxiliary telescopic bracket (8), the auxiliary telescopic bracket (8) comprising a support (80), a hook (81) arranged at one end of the support (80), a support rod (82) arranged at the other end of the support (80) and capable of telescopic movement along the support (80), and a collar (83) arranged at the end of the support rod (82); a locking member (72) for locking the position of the support rod (82) is arranged on the support (80).

9. The puncture needle positioning and fixing support device according to claim 1, characterized in that: The invention also comprises an auxiliary telescopic bracket (8), wherein the auxiliary telescopic bracket (8) comprises a support (80), a collar (83) arranged at one end of the support (80), a support rod (82) arranged at the other end of the support (80) and capable of telescopic movement along the support (80), and a hook (81) arranged at the end of the support rod (82).

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