Puncture assisting device for an anesthetic puncture kit

By designing a lifting clamping and guiding mechanism, combined with a protective cylinder and motor control, the problems of inconvenient installation and safety hazards of anesthesia puncture devices have been solved, improving the accuracy and safety of puncture.

CN120959855BActive Publication Date: 2026-04-10ZHEJIANG SUJIA MEDICAL DEVICE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-29
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing anesthesia puncture devices take up a lot of space, cannot be directly clamped and installed on the hospital bed, and the needle is easy to protrude, which may cause injury to others. The electric control puncture needle is easy to be accidentally activated when it is pressed down, which poses a safety hazard.

Method used

A puncture auxiliary device was designed, which includes a lifting clamping mechanism, a guiding mechanism, and a puncture mechanism. The lifting clamping mechanism is used for stable installation, the guiding mechanism is used for precise adjustment of the puncture position, and the puncture mechanism is equipped with a protective sleeve and a micro motor control on the outside of the needle to prevent the needle from falling accidentally.

Benefits of technology

The device features a compact design, facilitating installation on hospital beds, preventing needle cuts, improving the accuracy and safety of punctures, and reducing the risk of misoperation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses an anesthetic puncture set puncture auxiliary device and belongs to the puncture auxiliary field. The device comprises two lifting clamping mechanisms, and a guide mechanism is arranged between the two lifting clamping mechanisms. The front surface of the guide mechanism is provided with a puncture mechanism. The inner side of the puncture mechanism is provided with a puncture needle body. The puncture mechanism comprises a protective cylinder. The left side of the protective cylinder is provided with a penetrating lifting groove. The inner side of the lifting groove is rotationally connected with a lead screw through a rotating shaft. The device can flexibly select vertical or transverse clamping modes according to different bed edge structures in clamping and fixing. In the clamping process, the device is stably and firmly clamped through positioning rods, adjusting bolts and other components, thereby providing solid foundation support for the whole puncture operation, and the clamping mode cannot be changed, and the puncture adjusting distance is shortened.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of puncture assistance, in particular to a puncture assistance device for anesthetic puncture kit. BACKGROUND

[0002] Anesthesia is a reversible inhibition of central nervous and peripheral nervous system function produced by drugs or other methods, the main feature of which is the loss of sensation, especially pain, and the current anesthesia is usually used in patients with puncture needle;

[0003] The patent CN215534841U discloses an internal medicine thyroid auxiliary puncture device, which comprises a supporting rod, a fixed sleeve and a movable sleeve, the supporting rod is symmetrically provided with two supporting rods, the supporting rod is provided with a fixed sleeve, the fixed sleeve is slidably connected with the supporting rod, and the fixed sleeve is fixed with the supporting rod through bolts, the inner side of the fixed sleeve is welded with the movable sleeve, the movable sleeve is inserted with a horizontal rod, the needle tube of the puncture needle is inserted into the through hole of the rubber sleeve, the handle of the puncture needle is fixed by the locking bolt, the clamping plate and the rubber pad, the handle is pushed downward, the push rod pushes the double-sided rack and the movable plate to move downward, the gear rotates to limit the double-sided rack, the slide rail limits the movable plate, the stability of the movable plate is improved, the puncture needle moves downward, the height of the puncture needle is adjusted, the auxiliary puncture device is simple in structure, convenient to adjust, the puncture needle is fixed more firmly, and the puncture is convenient to use;

[0004] The above-mentioned technology is practical by setting two supporting rods on the ground, but it is easy to be collided during puncture, which affects the puncture, occupies too much space, and is not convenient to be directly clamped and installed on the hospital bed for use, so that the applicability is small, and the needle part cannot be protected in the above-mentioned technology, so that the needle is exposed, which is easy to scratch others when adjusting the puncture position, and in order to facilitate the auxiliary puncture in the prior art, the electric device is usually used to control the puncture needle to press down and puncture, but there is no protection setting for this part in the prior art, which is easy to mis-touch the switch and cause the puncture needle to directly puncture, which is easy to cause safety hazard, and needs to be improved, therefore, the present application provides a puncture assistance device for anesthetic puncture kit. SUMMARY

[0005] The purpose of the present application is to provide a puncture assistance device for anesthetic puncture kit, which occupies small space, is convenient to be directly clamped and installed on the hospital bed for use, has high applicability, and the needle is protected in normal state to prevent scratching others; the present application also has another purpose, which is to provide a protection mechanism during the puncture process controlled by the electric device, which can prevent the puncture needle from descending and puncturing due to mis-touch, and has higher safety.

[0006] Technical solution: a puncture auxiliary device for anesthetic puncture kit, comprising two lifting clamping mechanisms;

[0007] A guide mechanism is arranged between the two lifting clamping mechanisms;

[0008] The front surface of the guide mechanism is provided with a puncture mechanism;

[0009] The inner side of the puncture mechanism is provided with a puncture needle body;

[0010] The puncture mechanism comprises a protective cylinder, the left side of the protective cylinder is provided with a through-type lifting groove, the inner side of the lifting groove is rotatably connected with a lead screw through a rotating shaft, the outer wall of the lead screw is fixedly connected with a gear one below, the outer wall of the lead screw is threadedly connected with a lifting sleeve above, the right side of the lifting sleeve is fixedly connected with a sleeve inside the protective cylinder, the inner side of the sleeve is provided with two arc-shaped clamps, a plurality of springs one are fixedly connected between the arc-shaped clamps and the sleeve;

[0011] The inside of the lifting sleeve is rotatably connected with two rotating rods one through a rotating shaft at the left side of the protective cylinder, and the top end of the rotating rod one is fixedly connected with a pressing clamp;

[0012] The left side of the lifting sleeve is fixedly connected with an axle seat below and in front of the front, and the lower surface of the axle seat is rotatably connected with two rotating rods two through a rotating shaft, and the bottom end of each of the two rotating rods two is fixedly connected with a lower baffle;

[0013] The puncture needle body comprises a needle, the top end of the needle is integrally formed with a needle seat, the outer wall of the needle seat is provided with an annular clamping groove, the needle is clamped between the two arc-shaped clamps, and the opposite sides of the two pressing clamps are clamped inside the annular clamping groove.

[0014] Further, the outer wall of the gear one is meshingly connected with a gear two, the lower side of the gear two is provided with a micro motor, the top end of the output shaft of the micro motor is fixedly connected with the lower surface center of the gear two, and the right side of the micro motor is fixedly connected with the left side of the protective cylinder.

[0015] Further, the top end of the rotating rod two penetrates to the upper side of the axle seat and is fixedly connected with a gear three.

[0016] Further, the left side of the protective cylinder is fixedly connected with a fixed piece above the two rotating rods one, the upper surface of the fixed piece is rotatably connected with a gear four through a rotating shaft, the gear three is meshingly connected with the gear four, the outer wall of the rotating rod one and located inside the gear four is integrally formed with a limiting strip, and the limiting strip is slidingly connected with the gear four.

[0017] Further, the lifting clamping mechanism comprises a lifting seat, the inside of the lifting seat is slidably connected with a bottom plate, the upper surface of the bottom plate is rotatably connected with a lifting screw through a rotating shaft, the top end of the lifting screw penetrates to the upper side of the lifting seat, the outer side wall of the lifting screw and the inside of the lifting seat are threadedly connected with a lifting plate.

[0018] Further, the inside of the lifting seat and below the bottom plate is rotatably connected with a bidirectional screw rod through a rotating shaft, the outer side wall of the bidirectional screw rod is spirally installed with two screw sleeves, the upper surface of the screw sleeve is rotatably connected with a rotating head one through a rotating shaft, the outer side wall of the rotating head one is rotatably connected with a traction rod, the top end of the traction rod is rotatably connected with a rotating head two through a rotating shaft, the top of the rotating head two is fixedly connected with the lower surface of the bottom plate, the side of the lifting seat away from the guide mechanism is provided with a limiting groove, the outer side wall of the screw sleeve and the inside of the limiting groove are fixedly connected with a limiting block.

[0019] Further, the two ends of the bidirectional screw rod penetrate to the outside of the lifting seat, and are fixedly connected with a connecting piece, the bottom ends of the two connecting pieces opposite to each other are fixedly connected with a concave clamping seat, the inside of the concave clamping seat is slidably connected with a clamping plate, the side of the clamping plate away from the guide mechanism is rotatably connected with an adjusting bolt through a rotating shaft, the end of the adjusting bolt away from the clamping plate penetrates to the outside of the concave clamping seat, and is threadedly connected with the concave clamping seat, the side of the clamping plate close to the adjusting bolt is fixedly connected with two limiting rods, the end of the limiting rod away from the clamping plate penetrates to the outside of the concave clamping seat, and is slidably connected with the concave clamping seat.

[0020] Further, the front surface of the lifting seat and outside the bidirectional screw rod is provided with two positioning holes perpendicular to each other, the front of the connecting piece located on the front surface of the lifting seat is provided with a positioning rod, the rear end of the positioning rod penetrates the connecting piece, and is inserted into the inside of the positioning hole located above the outside of the bidirectional screw rod, the front end of the positioning rod is fixedly connected with a pulling block, the opposite sides of the pulling block and the connecting piece, and located outside the positioning rod are fixedly connected with a spring two.

[0021] Further, the guide mechanism comprises an arc-shaped guide rail, the inside rear surface of the arc-shaped guide rail is provided with a through-type arc-shaped groove, the inside of the arc-shaped guide rail is slidably connected with a moving block, the inside rear of the moving block and the inside of the arc-shaped groove are threadedly connected with a fastening bolt, the two ends of the arc-shaped guide rail are fixedly connected with the opposite sides of the two lifting plates respectively, the front surface of the moving block is fixedly connected with the rear surface of the protective cylinder.

[0022] Beneficial effects: the device has the advantages that in the clamping and fixing aspect, the lifting clamping mechanism can flexibly select vertical or transverse clamping modes according to different bed body edge structures, and stable and firm clamping effects are realized through positioning rods, adjusting bolts and other components during the clamping process, a solid foundation support is provided for the whole puncture operation, and the puncture adjusting distance is shortened without changing the clamping mode;

[0023] The body shape and size of different patients are obviously different, and the height of the operating bed is also different. By adjusting the height of the lifting plate through the lifting screw rod, the guiding mechanism and the puncture mechanism can accurately adapt to the puncture site of different patients;

[0024] The arc-shaped guide rail and the moving block of the guiding mechanism of the device are designed, so that medical staff can easily and accurately adjust the puncture position according to the specific situation of the patient, and reliably position through the fastening bolt, greatly improving the accuracy and flexibility of the puncture operation;

[0025] The unique structure design of the puncture mechanism in the device not only provides safe protection and stable clamping for the puncture needle before puncture, avoids the risk of accidental scratching and falling of the needle, but also realizes smooth and accurate pressing of the needle during the puncture process through the precise transmission system, ensuring the smooth operation of the puncture operation and the safety of the operation. The design of the whole device fully considers the actual needs of clinical operation and various possible situations, greatly improves the efficiency, accuracy and safety of anesthesia puncture operation, provides a reliable operation tool for medical staff, and provides a powerful guarantee for the safety of patients' operation. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is the overall structure schematic diagram of the present application;

[0027] Figure 2 is the side view structure schematic diagram of the puncture mechanism of the present application;

[0028] Figure 3 is the connection structure schematic diagram of the sleeve, the arc-shaped clamping plate and the lifting sleeve of the present application;

[0029] Figure 4 is the side view structure schematic diagram of the lifting clamping mechanism of the present application;

[0030] Figure 5 is the side view connection structure schematic diagram of the concave clamping seat, the connecting piece, the bidirectional screw rod, the traction rod and the bottom plate of the present application;

[0031] Figure 6 is the side view structure schematic diagram of the lifting seat of the present application;

[0032] Figure 7 is the structure schematic diagram of the guiding mechanism of the present application;

[0033] Figure 8 is a schematic view of the rear structure of the guiding mechanism of the present application;

[0034] Figure 9 is a schematic view of the structure of the puncture needle body of the present application;

[0035] Figure 10 is a schematic view of the structure of the puncture needle body of the present application; Figure 2 is a schematic view of the structure of the puncture needle body of the present application;

[0036] Figure 11 is a schematic view of the structure of the puncture needle body of the present application; Figure 2 is a schematic view of the structure of the puncture needle body of the present application.

[0037] In the figure: 1, lifting clamping mechanism; 2, guiding mechanism; 3, puncture mechanism; 4, puncture needle body; 101, lifting seat; 102, bottom plate; 103, lifting screw; 104, lifting plate; 105, bidirectional screw rod; 106, screw sleeve; 107, rotating head one; 108, traction rod; 109, rotating head two; 110, limiting groove; 111, limiting block; 112, connecting piece; 113, concave clamping seat; 114, clamping plate; 115, adjusting bolt; 116, limiting rod; 117, positioning hole; 118, positioning rod; 119, pulling block; 120, spring two; 201, arc-shaped guide rail; 202, arc-shaped groove; 203, moving block; 204, fastening bolt; 301, protective cylinder; 302, lifting groove; 303, screw; 304, gear one; 305, lifting sleeve; 306, sleeve; 307, arc-shaped clamping plate; 308, spring one; 309, rotating rod one; 310, downward clamping plate; 311, shaft seat; 312, rotating rod two; 313, lower baffle; 314, gear two; 315, micro motor; 316, gear three; 317, fixed piece; 318, gear four; 319, limiting strip; 401, needle; 402, needle seat; 403, annular clamping groove. DETAILED DESCRIPTION

[0038] In order to make the technical scheme of the present application clearer, the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0039] EMBODIMENT

[0040] As shown in Figure 1 , Figure 4 , Figure 5 and Figure 6 , a puncture auxiliary device for an anesthetic puncture kit is provided, which comprises two lifting clamping mechanisms 1.

[0041] The lifting clamping mechanism 1 comprises a lifting seat 101, the inside of the lifting seat 101 is slidably connected with a bottom plate 102, the upper surface of the bottom plate 102 is rotatably connected with a lifting screw 103 through a rotating shaft, the top end of the lifting screw 103 penetrates to the upper side of the lifting seat 101, the outer side wall of the lifting screw 103 and located on the inner side of the lifting seat 101 is threadedly connected with a lifting plate 104;

[0042] The inner side of the lifting seat 101 and located below the bottom plate 102 is rotatably connected with a bidirectional screw rod 105 through a rotating shaft, the outer side wall of the bidirectional screw rod 105 is spirally installed with two screw sleeves 106, the upper surface of the screw sleeve 106 is rotatably connected with a rotating head one 107 through a rotating shaft, the outer side wall of the rotating head one 107 is rotatably connected with a traction rod 108, the top end of the traction rod 108 is rotatably connected with a rotating head two 109 through a rotating shaft, the top of the rotating head two 109 is fixedly connected with the lower surface of the bottom plate 102, the side of the lifting seat 101 away from the guide mechanism 2 is provided with a limiting groove 110, the outer side wall of the screw sleeve 106 and located on the inner side of the limiting groove 110 is fixedly connected with a limiting block 111;

[0043] Both ends of the bidirectional screw rod 105 penetrate to the outer side of the lifting seat 101, and are fixedly connected with a connecting piece 112, the bottom ends of the front and rear opposite two connecting pieces 112 are fixedly connected with a concave clamping seat 113, the inner side of the concave clamping seat 113 is slidably connected with a clamping plate 114, the side of the clamping plate 114 away from the guide mechanism 2 is rotatably connected with an adjusting bolt 115 through a rotating shaft, the end of the adjusting bolt 115 away from the clamping plate 114 penetrates to the outer side of the concave clamping seat 113, and is threadedly connected with the concave clamping seat 113, the side of the clamping plate 114 close to the adjusting bolt 115 is fixedly connected with two limiting rods 116, the end of the limiting rod 116 away from the clamping plate 114 penetrates to the outer side of the concave clamping seat 113, and is slidably connected with the concave clamping seat 113;

[0044] The front surface of the lifting seat 101 and located on the outer side of the bidirectional screw rod 105 is provided with two mutually perpendicular positioning holes 117, the front of the connecting piece 112 located on the front surface of the lifting seat 101 is provided with a positioning rod 118, the rear end of the positioning rod 118 penetrates the connecting piece 112, and is inserted into the inside of the positioning hole 117 located on the outer side of the bidirectional screw rod 105, the front end of the positioning rod 118 is fixedly connected with a pulling block 119, the opposite side of the pulling block 119 and the connecting piece 112, and located on the outer side of the positioning rod 118 is fixedly connected with a spring two 120;

[0045] In the actual clinical operation scene, the structure and gap shape of the edge of the operating bed body are various, the lifting clamping mechanism 1 of the device can flexibly adapt to different bed body conditions, when there is a suitable vertical gap at the edge of the bed body, the concave clamping seat 113 can be installed with the opening downward, the medical staff only needs to stably clamp the concave clamping seat 113 from above the edge of the bed body to the edge, then holds the adjusting bolt 115 with hand, slowly rotates, and under the limiting action of the limiting rod 116, the clamping plate 114 will stably move along the fixed direction, gradually approaches the edge of the bed body, and with the continuous rotation, the clamping plate 114 and the concave clamping seat 113 jointly act to clamp the edge of the bed body firmly;

[0046] And at this time, the positioning rod 118 is inserted into the positioning hole 117 above the outer wall of the bidirectional screw rod 105 under the elastic tension of the spring two 120, forming a stable positioning structure, like adding a safety lock to the concave clamping seat 113, ensuring that it can withstand various external forces during the operation in the state of the opening downward, maintaining high stability and not shaking or displacing;

[0047] When the edge structure of the bed body is special and is not suitable for vertical clamping, the medical staff needs to use the transverse clamping mode, first holds the pulling block 119 with hand, slightly pulls out the positioning rod 118 from the current positioning hole 117, and after the positioning restraint is released, rotates the connecting piece 112, because the connecting piece 112 is fixedly connected with the bidirectional screw rod 105, the bidirectional screw rod 105 also rotates synchronously, and in the rotating process, the two screw sleeves 106 move relatively along the bidirectional screw rod 105 under the limiting constraint of the limiting block 111 and the limiting groove 110, and the movement stably drives the bottom plate 102 to rise through the linkage action of the rotating head one 107, the rotating head two 109 and the traction rod 108, when the concave clamping seat 113 rotates to the transverse state, the openings of the two concave clamping seats 113 are opposite, forming a stable transverse clamping structure;

[0048] At this time, the medical staff inserts the positioning rod 118 into another positioning hole 117 to complete the accurate positioning of the transverse position.

[0049] This ingenious design makes the adjustment range of the lifting screw rod 103 relatively stable after the concave clamping seat 113 rotates from the same vertical position below the lifting seat 101 to the perpendicular state. Even in different clamping modes, the medical staff can easily and accurately adjust the puncture height, effectively avoiding the problem that the height adjustment range of the lifting screw rod 103 becomes small due to the change of the state of the concave clamping seat 113, greatly improving the universality and operation convenience of the device;

[0050] The device can control the lifting plate 104 to rise or fall through the handheld lifting screw 103, so as to control the height of the guide mechanism 2 and the puncture mechanism 3.

[0051] As shown in Figure 7 and Figure 8 , the two lifting clamping mechanisms 1 are provided with a guide mechanism 2;

[0052] The guide mechanism 2 comprises an arc-shaped guide rail 201, the inner rear surface of the arc-shaped guide rail 201 is provided with a through arc-shaped groove 202, the inner side of the arc-shaped guide rail 201 is slidably connected with a moving block 203, the inner rear side of the moving block 203 and the inner side of the arc-shaped groove 202 are threadedly connected with a fastening bolt 204, and the two ends of the arc-shaped guide rail 201 are fixedly connected with the opposite sides of the two lifting plates 104.

[0053] In actual anesthesia puncture operation, the body shape of the patient, the puncture site and the operation demand are different, so accurate adjustment of the puncture position is very important. After the puncture needle body 4 is initially placed in the inner side of the puncture mechanism 3, the medical staff can push the moving block 203 by hand, so that it slides along the inner side of the arc-shaped guide rail 201. The unique arc-shaped design of the arc-shaped guide rail 201 provides a multi-angle and flexible operation space for the adjustment of the puncture position, which can meet the puncture demand of different patients and operation scenes.

[0054] When the medical staff adjusts the puncture position to a suitable angle and position according to the specific situation of the patient, the handheld fastening bolt 204 needs to be operated, the fastening bolt 204 is rotated and moved gradually into the inner side of the moving block 203, until the fastening bolt 204 is tightly attached to the arc-shaped guide rail 201, and as the fastening bolt 204 is continuously tightened, the friction between the two gradually increases, so as to realize the firm locking of the position of the moving block 203. Once the moving block 203 is positioned, the position of the puncture mechanism 3 and the puncture needle body 4 is also determined, so as to ensure that the puncture needle can accurately and correctly reach the predetermined puncture point.

[0055] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 9 , Figure 10 and Figure 11 , the front surface of the guide mechanism 2 is provided with a puncture mechanism 3;

[0056] The puncture mechanism 3 comprises a protective cylinder 301, the left side of the protective cylinder 301 is provided with a through type lifting groove 302, the inner side of the lifting groove 302 is rotatably connected with a lead screw 303 through a rotating shaft, the outer side wall of the lead screw 303 is fixedly connected with a gear one 304 below, the outer side wall of the lead screw 303 is threadedly connected with a lifting sleeve 305 above, the right side of the lifting sleeve 305 is fixedly connected with a sleeve 306 inside the protective cylinder 301, the inner side of the sleeve 306 is provided with two arc-shaped clamping plates 307, a plurality of springs one 308 are fixedly connected between the arc-shaped clamping plates 307 and the sleeve 306;

[0057] The inside of the lifting sleeve 305 is rotatably connected with two rotating rods one 309 through a rotating shaft at the left side of the protective cylinder 301, the top end of the rotating rod one 309 is fixedly connected with a pressing clamping plate 310;

[0058] The left side below of the lifting sleeve 305 is fixedly connected with an axle seat 311 in front of the axle seat 311, the lower surface of the axle seat 311 is rotatably connected with two rotating rods two 312 through a rotating shaft, the bottom end of the two rotating rods two 312 is fixedly connected with a lower baffle 313;

[0059] The outer side wall of the gear one 304 is meshingly connected with a gear two 314, the gear two 314 is provided below with a micro motor 315, the output shaft top end of the micro motor 315 is fixedly connected with the lower surface center of the gear two 314, the right side of the micro motor 315 is fixedly connected with the left side of the protective cylinder 301;

[0060] The top end of the rotating rod two 312 penetrates to the upper side of the axle seat 311 and is fixedly connected with a gear three 316;

[0061] The upper surface of the fixed sheet 317 is rotatably connected with a gear four 318 through a rotating shaft, the gear three 316 is meshingly connected with the gear four 318, the outer side wall of the rotating rod one 309 and located inside the gear four 318 is integrally formed with a limiting strip 319, the limiting strip 319 is slidingly connected with the gear four 318;

[0062] The front surface of the moving block 203 is fixedly connected with the rear surface of the protective cylinder 301;

[0063] The inner side of the puncture mechanism 3 is provided with a puncture needle body 4;

[0064] The puncture needle body 4 comprises a needle 401, the top end of the needle 401 is integrally formed with a needle seat 402, the outer side wall of the needle seat 402 is provided with an annular clamping groove 403, the needle 401 is clamped between the two arc-shaped clamping plates 307, the opposite sides of the two pressing clamping plates 310 are clamped inside the annular clamping groove 403;

[0065] In the operation preparation stage, in order to ensure the safety and accuracy of the puncture process, the medical staff needs to pre-operate the puncture mechanism 3, first, hold two down clamping plates 310 with both hands respectively, slowly rotate in opposite directions, and separate the two down clamping plates 310. Since the gear four 318 is slidingly installed outside the rotating rod one 309 through the limiting strip 319, during the rotation of the two rotating rods one 309 with the down clamping plates 310, the two gear fours 318 will rotate in opposite directions synchronously, and through the meshing transmission of the gear four 318 and the gear three 316, the two rotating rods two 312 will rotate relatively, finally making the two down baffles 313 rotate relatively and stick together, forming a closed structure, completely blocking the bottom of the protective cylinder 301.

[0066] At this time, the medical staff can carefully insert the needle 401 part of the puncture needle body 4 between the two arc-shaped clamping plates 307. Under the elastic extrusion action of the plurality of springs one 308, the arc-shaped clamping plate 307 will tightly clamp the needle 401, realizing preliminary clamping and limiting. When the puncture mechanism 3 is guided along the guide mechanism 2 in subsequent movement, due to the inevitable existence of some shaking or external force interference in the operation environment, the down baffle 313 blocked at the bottom of the protective cylinder 301 plays a key role, which can effectively prevent the needle 401 from being separated due to the loose clamping of the arc-shaped clamping plate 307. This design not only plays a good shielding and protection role for the bottom end of the needle 401, avoiding the problem that the needle 401 is exposed and easily scratches the medical staff or the patient in the prior art, but also provides double protection in safety;

[0067] And even if the switch of the micro motor 315 is accidentally touched during operation, the needle 401 cannot be extended downward due to the blocking of the down baffle 313 at the bottom of the needle 401. At this time, the needle 401 is only subjected to the clamping force of the arc-shaped clamping plate 307 pushed by the spring one 308. When the needle 401 is blocked from descending, the arc-shaped clamping plate 307 and the needle 401 will slide relative to each other, and the needle 401 will not be easily bent, effectively protecting the integrity of the puncture needle.

[0068] When entering the formal puncture operation stage, the medical staff needs to turn the two lower pressing plates 310 to the middle and combine them, so that they are accurately clamped at the annular clamping groove 403 opened outside the needle seat 402. In this process, through the precise cooperation transmission between the rotating rod one 309, the rotating rod two 312, the gear three 316 and the gear four 318, the two lower baffles 313 will be re-rotated and separated, opening the bottom of the protection cylinder 301. At this time, the medical staff starts the micro motor 315, the output shaft of the micro motor 315 drives the gear two 314 to rotate, and through the meshing transmission of the gear two 314 and the gear one 304, the lead screw 303 starts to rotate. With the rotation of the lead screw 303, the lifting sleeve 305 will stably descend along the inside of the lifting groove 302, and then drive the rotating rod one 309 to descend together. Since the lower pressing plate 310 is clamped inside the annular clamping groove 403, in the process of descending the lifting sleeve 305, the needle 401 will be stably moved downward through the lower pressing plate 310, and finally the precise puncture work is completed. After puncture, in order to prevent the needle 401 from being accidentally pulled out due to accidental touch of the micro motor 315 switch during the subsequent operation process, the medical staff can control the two lower pressing plates 310 to separate again, re-forming a safe protection state and providing reliable safety guarantee for the entire operation process.

[0069] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the patent of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of protection of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A puncture auxiliary device for anesthesia puncture kit, comprising a lifting and clamping mechanism (1), characterized in that: The number of lifting clamping mechanisms (1) is two; A guide mechanism (2) is provided between the two lifting clamping mechanisms (1); The front surface of the guide mechanism (2) is provided with a puncture mechanism (3); The puncture mechanism (3) has a puncture needle body (4) on its inner side. The puncture mechanism (3) includes a protective cylinder (301). A through-type lifting groove (302) is provided on the left side of the protective cylinder (301). A lead screw (303) is rotatably connected to the inner side of the lifting groove (302) via a rotating shaft. A gear (304) is fixedly connected to the lower side of the outer wall of the lead screw (303). A lifting sleeve (305) is threadedly connected to the upper side of the outer wall of the lead screw (303). A sleeve (306) is fixedly connected to the right side of the lifting sleeve (305) inside the protective cylinder (301). Two arc-shaped clamps (307) are provided on the inner side of the sleeve (306). Multiple springs (308) are fixedly connected between the arc-shaped clamps (307) and the sleeve (306). The interior of the lifting sleeve (305) is located on the left side of the protective cylinder (301) and is rotatably connected to two rotating rods (309) via a rotating shaft. The top of the rotating rod (309) is fixedly connected to a pressing plate (310). The lifting sleeve (305) is symmetrically and fixedly connected to the lower left front of the shaft seat (311). The lower surface of the shaft seat (311) is rotatably connected to two rotating rods (312) through a rotating shaft. The bottom ends of the two rotating rods (312) are fixedly connected to a lower baffle (313). The puncture needle body (4) includes a needle tip (401), and a needle seat (402) is integrally formed at the top of the needle tip (401). An annular groove (403) is provided on the outer side wall of the needle seat (402). The needle tip (401) is engaged between two arc-shaped clamps (307), and the opposite sides of the two pressing clamps (310) are engaged with the inner side of the annular groove (403).

2. The puncture auxiliary device for anesthesia puncture pack according to claim 1, characterized in that: Gear 2 (314) is meshed with the outer wall of gear 1 (304). A micro motor (315) is provided below gear 2 (314). The top of the output shaft of micro motor (315) is fixedly connected to the center of the lower surface of gear 2 (314). The right side of micro motor (315) is fixedly connected to the left side of protective cylinder (301).

3. The puncture auxiliary device for anesthesia puncture pack according to claim 1, characterized in that: The top end of the rotating rod (312) extends through to the top of the bearing (311) and is fixedly connected to the gear (316).

4. The puncture auxiliary device for anesthesia puncture kit according to claim 3, characterized in that: A fixing plate (317) is fixedly connected to the upper left side of the protective cylinder (301) on the outside of the two rotating rods (309). The upper surface of the fixing plate (317) is rotatably connected to a gear four (318) via a rotating shaft. The gear three (316) meshes with the gear four (318). A limiting strip (319) is integrally formed on the outer wall of the rotating rod one (309) and on the inner side of the gear four (318). The limiting strip (319) is slidably connected to the gear four (318).

5. The puncture auxiliary device for anesthesia puncture pack according to claim 1, characterized in that: The lifting clamping mechanism (1) includes a lifting seat (101), a base plate (102) is slidably connected inside the lifting seat (101), a lifting screw (103) is rotatably connected to the upper surface of the base plate (102) via a rotating shaft, the top end of the lifting screw (103) extends through to the top of the lifting seat (101), and a lifting plate (104) is threadedly connected to the outer wall of the lifting screw (103) and located on the inner side of the lifting seat (101).

6. The puncture auxiliary device for anesthesia puncture pack according to claim 5, characterized in that: A bidirectional spiral rod (105) is rotatably connected to the inner side of the lifting seat (101) and below the base plate (102) via a rotating shaft. Two spiral sleeves (106) are spirally installed on the outer side wall of the bidirectional spiral rod (105). A rotating head (107) is rotatably connected to the upper surface of the spiral sleeve (106) via a rotating shaft. A traction rod (108) is rotatably connected to the outer side wall of the rotating head (107) via a rotating shaft. A rotating head (109) is rotatably connected to the top of the traction rod (108) via a rotating shaft. The top of the rotating head (109) is fixedly connected to the lower surface of the base plate (102). A limiting groove (110) is opened on the side of the lifting seat (101) away from the guide mechanism (2). A limiting block (111) is fixedly connected to the outer side wall of the spiral sleeve (106) and inside the limiting groove (110).

7. The puncture auxiliary device for anesthesia puncture pack according to claim 6, characterized in that: Both ends of the bidirectional spiral rod (105) extend to the outside of the lifting seat (101) and are fixedly connected to connecting pieces (112). The bottom ends of the two front-to-back connecting pieces (112) are fixedly connected to a concave clamping seat (113). A clamping plate (114) is slidably connected to the inner side of the concave clamping seat (113). An adjusting bolt (115) is rotatably connected to the side of the clamping plate (114) away from the guide mechanism (2) via a rotating shaft. One end of the bolt (115) away from the clamping plate (114) extends through to the outside of the concave clamping seat (113) and is threadedly connected to the concave clamping seat (113). Two limiting rods (116) are fixedly connected to the side of the clamping plate (114) near the adjusting bolt (115). One end of the limiting rod (116) away from the clamping plate (114) extends through to the outside of the concave clamping seat (113) and is slidably connected to the concave clamping seat (113).

8. The puncture auxiliary device for anesthesia puncture pack according to claim 7, characterized in that: Two mutually perpendicular positioning holes (117) are provided on the front surface of the lifting seat (101) and on the outside of the bidirectional spiral rod (105). A positioning rod (118) is provided in front of the connecting piece (112) on the front surface of the lifting seat (101). The rear end of the positioning rod (118) passes through the connecting piece (112) and is inserted into the positioning hole (117) located above the outside of the bidirectional spiral rod (105). A pulling block (119) is fixedly connected to the front end of the positioning rod (118). A spring (120) is fixedly connected to the opposite side of the pulling block (119) and the connecting piece (112) and on the outside of the positioning rod (118).

9. The puncture auxiliary device for anesthesia puncture pack according to claim 5, characterized in that: The guiding mechanism (2) includes an arc-shaped guide rail (201), and a through arc-shaped groove (202) is provided on the inner rear surface of the arc-shaped guide rail (201). A moving block (203) is slidably connected to the inner side of the arc-shaped guide rail (201). A fastening bolt (204) is threadedly connected to the inner rear of the moving block (203) and to the inner side of the arc-shaped groove (202). The two ends of the arc-shaped guide rail (201) are fixedly connected to the opposite sides of the two lifting plates (104). The front surface of the moving block (203) is fixedly connected to the rear surface of the protective cylinder (301).

Citation Information

Patent Citations

  • Nephrological biopsy puncture device

    CN109700484A

  • Puncture device with auxiliary positioning function for medical anesthesia

    CN114869426A