Anesthesia puncture needle guide structure

Abstract

The present invention discloses an anesthesia puncture needle guide structure, which belongs to the technical field of medical devices, and includes an outer shell, wherein the top and bottom of the outer shell are symmetrical to each other and are both truncated, and the top and bottom of the outer shell are both located on the same straight line and are provided with puncture ports, the inner bottom of the outer shell is provided with an insertion locking mechanism for blocking the puncture needle from moving downward, the middle position of the outer shell is provided with an insertion unlocking mechanism for releasing the fixed state of the puncture needle moving downward, and the inner top of the outer shell is provided with a withdrawal locking mechanism for blocking the puncture needle from moving upward. The present invention vertically fixes the outer shell at the puncture point through a bottom plate, and respectively provides puncture ports at the upper and lower ends of the outer shell, and the skin-breaking needle and the epidural puncture needle are both vertically inserted from the puncture ports. After the skin-breaking point is determined by the skin-breaking needle, when the epidural puncture needle is vertically inserted from the shell, the epidural puncture needle can be guided so as to quickly find the skin-breaking insertion point, thereby saving the time required for inserting the epidural puncture needle.

Description

Technical Field

[0001] The invention relates to a guide structure, in particular to an anesthesia puncture needle guide structure, and belongs to the technical field of medical devices. Background Art

[0002] Lumbar anesthesia, medically known as subarachnoid block anesthesia, is the injection of local anesthetics into the subarachnoid space to produce varying degrees of blockade of the spinal nerve roots, dorsal root ganglia and the surface of the spinal cord. During the puncture process, the puncture is mainly completed with the use of epidural puncture needles and spinal anesthesia puncture needles. The epidural puncture needle can play an important role in assisting guidance and establishing a pathway during the spinal anesthesia puncture process. After the epidural puncture needle successfully enters the epidural space, a relatively stable channel is established in the body. With the help of this channel, the spinal anesthesia puncture needle can smoothly pass through multiple layers of tissue such as the skin, subcutaneous tissue, supraspinous ligament, and interspinous ligament to reach the subarachnoid space. This method can effectively prevent the spinal anesthesia puncture needle from being interfered with and obstructed by too much tissue during the puncture process.

[0003] Currently, before using the epidural puncture needle, it is necessary to first perform disinfection, confirm the puncture point, and perform local anesthesia. After local anesthesia, the skin is broken with a skin-breaking needle, and then the epidural puncture needle is inserted vertically at the skin-breaking point. Since the skin-breaking point is small, it is inconvenient to find and align. After the dural puncture needle is inserted, the needle core needs to be withdrawn, and a certain pulling force will be applied to the dural puncture needle outward. In addition, when the spinal anesthesia puncture needle is inserted after the epidural puncture needle and connected to the injection needle, a pushing force will be applied inward to the dural puncture needle. When the dural puncture needle is subjected to pulling and pushing forces, it is easy to cause the dural puncture needle to move, affecting the accuracy of the injection position.

[0004] Therefore, an anesthesia puncture needle guide structure is designed to optimize the above-mentioned problems. Summary of the invention

[0005] The main purpose of the present invention is to provide an anesthesia puncture needle guiding structure, the outer shell is vertically fixed at the puncture point through the bottom plate, and puncture ports are respectively opened at the upper and lower ends of the outer shell, the skin-breaking needle and the epidural puncture needle are both vertically inserted from the puncture ports, after the skin-breaking point is determined by the skin-breaking needle, the epidural puncture needle can be guided when it is vertically inserted from the shell to quickly find the skin-breaking insertion point, saving the time required for the insertion of the epidural puncture needle, by arranging an insertion locking mechanism composed of an extrusion spring, a lower limit ring, a lower cone sleeve, a lower limit groove, and a lower ball at the inner bottom of the outer shell, and an upper limit ring, an upper cone sleeve, and an upper limit groove at the top of the shell. , and an upper ball-shaped withdrawal locking mechanism, which can be used in conjunction with an insertion unlocking mechanism and a withdrawal unlocking mechanism, can lock the position of the epidural puncture needle after the insertion is completed, preventing the epidural puncture needle from moving again, thereby ensuring the accuracy of the insertion position of the epidural puncture needle and the spinal anesthesia puncture needle; a puncture point hemostasis mechanism consisting of a fan-shaped valve sheet and a compression cotton pad is arranged inside the through hole of the bottom plate, so that the blood stains at the puncture point can be wiped after the skin is broken, thereby improving the functionality of use; a disinfectant cleaning mechanism consisting of hidden grooves, shrapnel, and cleaning cotton strips are evenly arranged on the outer side of the bottom of the bottom plate, so that the disinfectant at a fixed position can be cleaned to ensure the installation stability of the device.

[0006] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0007] An anesthesia puncture needle guide structure comprises an outer shell, the top and bottom of the outer shell are symmetrical to each other and are both in the shape of a truncated cone, the top and bottom of the outer shell are located on the same straight line and are both provided with puncture openings, the inner bottom of the outer shell is provided with an insertion locking mechanism for blocking the puncture needle from moving downward, the middle position of the outer shell is provided with an insertion unlocking mechanism for releasing the puncture needle from a fixed downward state, the inner top of the outer shell is provided with a withdrawal locking mechanism for blocking the puncture needle from moving upward, the top of the outer shell is provided with a withdrawal unlocking mechanism for releasing the puncture needle from a fixed upward state, a bottom plate is horizontally fixed to the bottom end of the outer shell, a through hole matching the puncture opening is provided on the bottom plate, adhesive pads are evenly arranged in a circular array on the outer side of the bottom of the bottom plate, a disinfectant cleaning mechanism is provided at the bottom of the bottom plate and between the adhesive pads, and a puncture point hemostasis mechanism for pressing the puncture point is provided inside the through hole.

[0008] Preferably: the insertion locking mechanism includes an extrusion spring, a lower limit ring, a lower cone sleeve, a lower limit groove and a lower ball, the extrusion spring is vertically arranged at the middle position inside the outer shell, the bottom end of the extrusion spring is provided with a lower limit ring, the bottom end of the lower limit ring is fixed with a lower cone sleeve, and the bottom end of the lower cone sleeve is fitted with the inner bottom of the outer shell, the outer side of the lower cone sleeve is evenly provided with lower limit grooves along the circumferential direction, and the lower limit grooves are all provided with lower balls.

[0009] Preferably: the extraction locking mechanism includes an upper limit ring, an upper cone sleeve, an upper limit groove and an upper ball, the upper limit ring is installed on the top of the extrusion spring, the upper cone sleeve is fixed on the top of the upper limit ring, the outer side of the upper cone sleeve is evenly provided with upper limit grooves along the circumferential direction, and the upper limit grooves are all provided with upper balls.

[0010] Preferably, the lower limit ring and the upper limit ring have the same structure, and are arranged opposite to each other, and both the lower limit ring and the upper limit ring are provided with a groove matched with the extrusion spring.

[0011] Preferably, the number and size of the upper balls and the lower balls are the same, and both the upper balls and the lower balls are provided in three groups and distributed in a circular array.

[0012] Preferably: the insertion unlocking mechanism includes a gear, a first rack, a vertical groove, a second rack and a pressure ring. The gear is evenly rotated and installed on the inner side of the outer shell. The outer side of the lower limit ring is evenly and vertically installed with the first rack meshing with the gear. Vertical grooves are evenly and vertically opened at the position of the outer side of the outer shell corresponding to the gear. The inside of the vertical grooves are vertically slidably installed with the second rack, which meshes with the gear. The outer side of the outer shell is sleeved with a pressure ring, and the top of the second rack is fixedly connected to the pressure ring.

[0013] Preferably: the pull-out unlocking mechanism includes an adjusting ring, an L-shaped connecting rod, a fixing ring, a card block and a card slot, the adjusting ring is rotatably installed on the top of the outer shell, and the adjusting ring is located above the pressure ring and sleeved on the outer shell, the outer side of the upper limit ring is evenly fixed with an L-shaped connecting rod, the top end of the L-shaped connecting rod penetrates to the outside of the outer shell and is vertically slidably connected with the outer shell, the top end of the L-shaped connecting rod fits with the bottom of the adjusting ring, the fixing ring is horizontally fixed to the top end of the outer shell, and card blocks are evenly fixed below the fixing ring and on the outer circumferential surface of the outer shell, and card slots matching the card blocks are evenly opened on the inner side of the adjusting ring along the circumferential direction.

[0014] Preferably: the disinfectant cleaning mechanism includes a hidden groove, a spring piece and a cleaning cotton strip. The hidden groove is evenly arranged in a circular array at the bottom of the base plate and is located between adjacent adhesive pads. Cleaning cotton strips are vertically slidably installed inside the hidden groove. The length of the cleaning cotton strip is greater than the width of the adhesive pad. Shrapnel is provided between the cleaning cotton strip and the top of the hidden groove.

[0015] Preferably: the puncture point hemostasis mechanism comprises a fan-shaped valve piece and a compression cotton pad, the fan-shaped valve piece is evenly fixed on the inner wall of the through hole, and the sides of adjacent fan-shaped valve pieces are fitted together, and the bottom of the fan-shaped valve piece is provided with a compression cotton pad.

[0016] Preferably, reinforcing ribs are evenly arranged in a circular array between the outer side of the outer shell and the top of the bottom plate.

[0017] The beneficial effects of the present invention are:

[0018] The present invention provides an anesthesia puncture needle guiding structure, wherein the outer shell is vertically fixed at the puncture point through a bottom plate, and puncture openings are respectively opened at the upper and lower ends of the outer shell, and the skin-breaking needle and the epidural puncture needle are both vertically inserted from the puncture openings. After the skin-breaking point is determined by the skin-breaking needle, the epidural puncture needle can be guided when it is vertically inserted from the shell, so as to quickly find the skin-breaking insertion point, thereby saving the time required for the insertion of the epidural puncture needle.

[0019] By arranging an insertion locking mechanism composed of a compression spring, a lower limit ring, a lower cone sleeve, a lower limit groove, and a lower ball at the inner bottom of the outer shell, and a withdrawal locking mechanism composed of an upper limit ring, an upper cone sleeve, an upper limit groove, and an upper ball at the top of the outer shell, and using them in conjunction with an insertion unlocking mechanism and a withdrawal unlocking mechanism, the position of the epidural puncture needle can be locked after the insertion is completed, thereby preventing the epidural puncture needle from moving again, and ensuring the accuracy of the insertion position of the epidural puncture needle and the spinal anesthesia puncture needle;

[0020] By arranging a puncture point hemostasis mechanism consisting of a fan-shaped valve piece and a compression cotton pad inside the through hole of the bottom plate, the blood stain at the puncture point can be wiped after the skin is broken, thereby improving the functionality of use. By evenly arranging a disinfectant cleaning mechanism consisting of hidden grooves, shrapnel, and cleaning cotton strips on the outer side of the bottom of the bottom plate, the disinfectant at a fixed position can be cleaned to ensure the installation stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front cross-sectional view of an initial state of a preferred embodiment of an anesthesia puncture needle guide structure of the present invention;

[0022] Figure 2 It is a front view of a preferred embodiment of an anesthesia puncture needle guide structure of the present invention;

[0023] Figure 3 It is a cross-sectional view of a skin-breaking needle puncture state of a preferred embodiment of an anesthesia puncture needle guide structure of the present invention;

[0024] Figure 4 This is a diagram of the epidural puncture needle puncture state of a preferred embodiment of an anesthesia puncture needle guide structure of the present invention;

[0025] Figure 5 It is a structural diagram of a lower cone sleeve of a preferred embodiment of an anesthesia puncture needle guide structure of the present invention;

[0026] Figure 6 This is a structural diagram of a limiting ring in a preferred embodiment of an anesthesia puncture needle guide structure of the present invention;

[0027] Figure 7A bottom view of a base plate of a preferred embodiment of an anesthesia puncture needle guide structure of the present invention;

[0028] Figure 8 The present invention is a top view of an adjustment ring of a preferred embodiment of an anesthesia puncture needle guide structure.

[0029] In the figure: 1. outer shell; 2. puncture port;

[0030] 3. Insert locking mechanism; 301. Extrusion spring; 302. Lower limit ring; 303. Lower cone sleeve; 304. Lower limit groove; 305. Lower ball;

[0031] 4. Insert unlocking mechanism; 401. gear; 402. first rack; 403. vertical groove; 404. second rack; 405. pressure ring;

[0032] 5. Pull out the locking mechanism; 501. Upper limit ring; 502. Upper cone sleeve; 503. Upper limit groove; 504. Upper ball;

[0033] 6. Pull out the unlocking mechanism; 601. Adjusting ring; 602. L-shaped connecting rod; 603. Fixing ring; 604. Block; 605. Slot;

[0034] 7. Bottom plate; 8. Through hole; 9. Adhesive pad;

[0035] 10. Disinfectant cleaning mechanism; 1001. Hidden slot; 1002. Shrapnel; 1003. Cleaning cotton strip;

[0036] 11. Puncture point hemostasis mechanism; 1101. Fan-shaped valve sheet; 1102. Compression cotton pad;

[0037] 12. Strengthen the ribs. DETAILED DESCRIPTION

[0038] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0039] like Figure 1-Figure 8As shown, the present embodiment provides an anesthesia puncture needle guide structure, including an outer shell 1, the top and bottom of the outer shell 1 are symmetrical to each other and are both truncated, the top and bottom of the outer shell 1 are located on the same straight line and are both provided with a puncture port 2, the inner bottom of the outer shell 1 is provided with an insertion locking mechanism 3 for blocking the puncture needle from moving downward, the middle position of the outer shell 1 is provided with an insertion unlocking mechanism 4 for releasing the puncture needle from a fixed downward state, the inner top of the outer shell 1 is provided with a withdrawal locking mechanism 5 for blocking the puncture needle from moving upward, the top of the outer shell 1 is provided with a withdrawal unlocking mechanism 6 for releasing the puncture needle from a fixed upward state, a bottom plate 7 is horizontally fixed to the bottom end of the outer shell 1, a through hole 8 cooperating with the puncture port 2 is provided on the bottom plate 7, adhesive pads 9 are evenly arranged on the outer side of the bottom of the bottom plate 7 in a ring array, a disinfectant cleaning mechanism 10 is provided at the bottom of the bottom plate 7 and between the adhesive pads 9, and a puncture point hemostasis mechanism 11 for pressing the puncture point is provided inside the through hole 8.

[0040] General working principle: During the subarachnoid block anesthesia process, the skin is disinfected with iodine tincture and other disinfectants with the puncture point as the center. The disinfection range is generally from the lower angle of the scapula to the tip of the coccyx and from both sides to the posterior axillary line. After disinfection, a sterile drape is spread to expose the puncture site, and then the puncture point is located. Generally, the L3-4 intervertebral space is selected. The L2-3 or L4-5 intervertebral space can also be selected according to the needs of the operation. A line is drawn at the highest point of the iliac crest on both sides. The intersection of this line and the spine is the L4 spinous process or the L3-4 intervertebral space. After finding the puncture point, 1% lidocaine is used for intradermal, subcutaneous and interspinous ligament infiltration anesthesia layer by layer at the puncture point. After local anesthesia, the protective film at the bottom of the adhesive pad 9 is uncovered, and the disinfectant at the bottom of the bottom plate 7 is used. The poison cleaning mechanism 10 cleans a circle of dry area outside the puncture point, and then the adhesive pad 9 is attached to the skin. At this time, the device is fixed, the puncture port 2 and the through hole 8 are located on the same vertical line and perpendicular to the puncture point. In the initial state, the withdrawal locking mechanism 5 is in an unlocked state, and the insertion locking mechanism 3 is in a locked state. After the device is fixed, the skin-breaking needle is inserted along the puncture port 2, and the insertion unlocking mechanism 4 is controlled to release the restriction on the insertion of the skin-breaking needle. The skin-breaking needle vertically passes through the puncture port 2 and the through hole 8 to leave a hole in the patient's skin. Since the standard epidural puncture needle is generally 17-18 gauge, the puncture needle is 3 inches (about 7.6 cm) or 3.5 inches (about 8.9cm), the tip is a blunt bevel with an angle of 15°-30°, so the hole reserved by the skin-breaking needle is convenient for the insertion of the epidural puncture needle. After the skin-breaking needle breaks the skin, it is pulled out, and the blood drops flowing out from the skin-breaking point are absorbed by the puncture point hemostasis mechanism 11 and compressed to stop bleeding. Then the epidural puncture needle is also inserted vertically along the puncture port 2 and the through hole 8, and the insertion unlocking mechanism 4 is controlled at the same time. The tip will be directly aimed at the skin-breaking position, and then the needle is inserted vertically. When the epidural puncture needle passes through the supraspinous ligament, interspinous ligament and yellow ligament, there will be two breakthrough sensations, indicating that the epidural puncture needle has entered the subarachnoid space. Then the withdrawal unlocking mechanism 6 is adjusted to withdraw and lock the epidural puncture needle to avoid the displacement of the epidural puncture needle caused by the outward pulling force on the epidural puncture needle when the needle core is withdrawn. After the needle core is withdrawn, the insertion unlocking mechanism 4 is no longer controlled, and the epidural puncture needle is in a fully positioned state. The needle is inserted and If the needle cannot be withdrawn, a negative pressure test is performed, and then a thinner spinal anesthesia puncture needle is inserted from the inside of the epidural puncture needle. The epidural puncture needle is used to guide the spinal anesthesia puncture needle. If cerebrospinal fluid flows out of the spinal anesthesia puncture needle, the puncture is successful. If the cerebrospinal fluid does not flow out smoothly, the insertion unlocking mechanism 4 can be controlled again to slightly control the insertion depth of the epidural puncture needle, or adjust the angle of the spinal anesthesia puncture needle until the cerebrospinal fluid flows out slowly. Then the epidural puncture needle is in a fully positioned state, and the injection needle is plugged into the end of the spinal anesthesia puncture needle. During the plugging process, since the epidural puncture needle is in a fully positioned state, it will not cause displacement, ensuring the accurate injection of the anesthetic. After the injection is completed, the puncture needle is pulled out, the device can be removed, and the puncture point is pressed for a while with a sterile cotton ball, and then covered with sterile gauze. The device can also be reserved for a period of time, and the puncture point hemostasis mechanism 11 on the device is used for compression and hemostasis. .

[0041] In this embodiment, the insertion locking mechanism 3 includes an extrusion spring 301, a lower limit ring 302, a lower cone sleeve 303, a lower limit groove 304 and a lower ball 305. The extrusion spring 301 is vertically arranged at the middle position inside the outer shell 1. The bottom end of the extrusion spring 301 is provided with a lower limit ring 302, and the bottom end of the lower limit ring 302 is fixed with a lower cone sleeve 303, and the bottom end of the lower cone sleeve 303 is fitted with the inner bottom of the outer shell 1. The outer side of the lower cone sleeve 303 is evenly provided with lower limit grooves 304 along the circumferential direction, and the lower limit grooves 304 are all provided with lower balls 305.

[0042] Local working principle: During use, in the initial state, the extrusion spring 301 applies downward pressure to the lower cone sleeve 303, fitting the bottom end of the lower cone sleeve 303 with the bottom end of the outer shell 1, and the lower ball 305 moves toward the inside of the lower cone sleeve 303, resulting in a smaller spacing between the lower balls 305, which is smaller than the diameter of the epidural puncture needle and the skin-breaking needle, and cannot meet the conditions for the puncture needle to be inserted, thus blocking the insertion of the epidural puncture needle and the skin-breaking needle.

[0043] In this embodiment, the extraction locking mechanism 5 includes an upper limit ring 501, an upper conical sleeve 502, an upper limit groove 503 and an upper ball 504. The upper limit ring 501 is installed on the top of the extrusion spring 301. The upper conical sleeve 502 is fixed to the top of the upper limit ring 501. The outer side of the upper conical sleeve 502 is evenly provided with upper limit grooves 503 along the circumferential direction, and the upper limit grooves 503 are all provided with upper balls 504.

[0044] Local working principle: when the locking mechanism 5 is pulled out, it is in the unlocked state in the initial state, and the upper limit ring 501 moves downward to apply downward pressure on the extrusion spring 301. The upper ball 504 on the upper cone sleeve 502 is relatively far away from the inner side of the outer shell 1. When the epidural puncture needle or the skin-breaking needle is inserted, the upper ball 504 can be squeezed outward. In addition, even if the locking mechanism 5 is pulled out and is in the locked state in the initial state, the epidural puncture needle or the skin-breaking needle can be inserted vertically. The insertion of the epidural puncture needle or the skin-breaking needle can also control the upper limit ring 501 to move downward, but the epidural puncture needle or the skin-breaking needle cannot be pulled out after being inserted. The locking mechanism 5 is in the unlocked state in the initial state only to facilitate the removal of the skin-breaking needle and the subsequent use of the epidural puncture needle.

[0045] In this embodiment, the lower limit ring 302 and the upper limit ring 501 have the same structure and are arranged opposite to each other. A groove cooperating with the extrusion spring 301 is formed on the lower limit ring 302 and the upper limit ring 501 .

[0046] Partial working principle: The grooves on the lower limit ring 302 and the upper limit ring 501 can limit the end of the extrusion spring 301.

[0047] In this embodiment, the number and size of the upper balls 504 and the lower balls 305 are the same, and both the upper balls 504 and the lower balls 305 are provided in three groups and distributed in a circular array.

[0048] Local working principle: The use of multiple sets of balls can improve the positioning stability of the epidural puncture needle.

[0049] In this embodiment, the insertion unlocking mechanism 4 includes a gear 401, a first rack 402, a vertical groove 403, a second rack 404 and a pressure ring 405. The gear 401 is evenly rotatably installed on the inner side of the outer shell 1, and the outer side of the lower limit ring 302 is evenly and vertically installed with the first rack 402 meshing with the gear 401. The outer side of the outer shell 1 is evenly and vertically opened with a vertical groove 403 at the position corresponding to the gear 401, and the inside of the vertical groove 403 is vertically slidably installed with a second rack 404, the second rack 404 is meshed with the gear 401, and the outer side of the outer shell 1 is sleeved with a pressure ring 405, and the top of the second rack 404 is fixedly connected to the pressure ring 405.

[0050] Partial working principle: During the insertion of the epidural puncture needle or the skin-breaking needle, the left hand finger presses the pressure ring 405 to control the second rack 404 to move downward, and the downward movement of the second rack 404 controls the rotation of the gear 401, driving the upward movement of the first rack 402, and the upward movement of the first rack 402 controls the upward movement of the lower limit ring 302, providing space for the movement of the lower ball 305 to facilitate the insertion of the epidural puncture needle or the skin-breaking needle. If the epidural puncture needle is located inside the lower cone sleeve 303 , the pressure ring 405 is not pressed. At this time, under the control of the elastic force of the extrusion spring 301, the lower cone sleeve 303 will drive the lower ball 305 to move a certain distance. The lower ball 305 fits tightly with the inner side of the outer shell 1, exerting an extrusion force on the epidural puncture needle. When the epidural puncture needle wants to move down again, it will exert pressure on the lower cone sleeve 303. At this time, the extrusion force exerted by the lower ball 305 on the epidural puncture needle will be greater, thereby hindering the continued movement of the epidural puncture needle and positioning the epidural puncture needle.

[0051] In this embodiment, the pull-out unlocking mechanism 6 includes an adjusting ring 601, an L-shaped connecting rod 602, a fixing ring 603, a block 604 and a slot 605. The adjusting ring 601 is rotatably installed on the top of the outer shell 1, and the adjusting ring 601 is located above the pressure ring 405 and sleeved on the outer shell 1. The outer side of the upper limit ring 501 is evenly fixed with an L-shaped connecting rod 602. The top end of the L-shaped connecting rod 602 penetrates to the outer side of the outer shell 1 and is vertically slidably connected with the outer shell 1. The top end of the L-shaped connecting rod 602 fits with the bottom of the adjusting ring 601. The fixing ring 603 is horizontally fixed to the top end of the outer side of the outer shell 1. Blocks 604 are evenly fixed below the fixing ring 603 and on the outer circumferential surface of the outer shell 1. The inner side of the adjusting ring 601 is evenly provided with slots 605 that cooperate with the block 604 along the circumferential direction.

[0052] Local working principle: in the initial state, the adjusting ring 601 applies pressure to the L-shaped connecting rod 602 and is located below the block 604. At this time, the movable distance between the upper ball 504 and the outer shell 1 is the largest, which will not affect the insertion of the epidural puncture needle or the skin-breaking needle. After the epidural puncture needle is inserted, the adjusting ring 601 is rotated to align the card slot 605 with the block 604. Under the thrust of the extrusion spring 301, the adjusting ring 601 moves up. At this time, the upper limit ring 501 and the upper cone sleeve 502 move up at the same time, and the upper ball 504 fits tightly with the epidural puncture needle. If the epidural puncture needle wants to be pulled out upward, it will exert an upward force on the upper cone sleeve 502, and the upward movement of the upper cone sleeve 502 will increase the squeezing force of the upper ball 504 on the epidural puncture needle, thereby hindering the movement of the epidural puncture needle and the epidural puncture needle cannot be pulled out.

[0053] In this embodiment, the disinfectant cleaning mechanism 10 includes a hidden groove 1001, a spring piece 1002 and a cleaning cotton strip 1003. The hidden groove 1001 is evenly arranged in a circular array at the bottom of the base plate 7 and is located between adjacent adhesive pads 9. Cleaning cotton strips 1003 are vertically slidably installed inside the hidden groove 1001. The length of the cleaning cotton strip 1003 is greater than the width of the adhesive pad 9. Spring pieces 1002 are provided between the cleaning cotton strip 1003 and the top of the hidden groove 1001.

[0054] Local working principle: When installing the device, the bottom plate 7 is attached to the patient's skin. At this time, the cleaning cotton strip 1003 first contacts the skin, and then two fingers are pinched to control the rotation of the bottom plate 7 to completely clean out a circular dry area at the puncture point. Then the bottom plate 7 is pressed, and the cleaning cotton strip 1003 enters the hidden groove 1001, and the adhesive pad 9 is attached to the skin, and the device is fixed.

[0055] In this embodiment, the puncture point hemostasis mechanism 11 includes a fan-shaped valve piece 1101 and a compression cotton pad 1102. The fan-shaped valve piece 1101 is evenly fixed on the inner wall of the through hole 8, and the sides of adjacent fan-shaped valve pieces 1101 are in contact with each other. The bottom of the fan-shaped valve piece 1101 is provided with a compression cotton pad 1102.

[0056] Local working principle: when the skin-breaking needle punctures, the fan-shaped valve piece 1101 will be squeezed downward. The fan-shaped valve piece 1101 has a certain elasticity. The skin-breaking needle passes through the middle of the fan-shaped valve piece 1101 and then breaks the skin. After the skin-breaking needle is pulled out, the fan-shaped valve piece 1101 drives the compression cotton pad 1102 to return to its original position. The compression cotton pad 1102 covers the puncture point to stop bleeding. After anesthesia is completed and the epidural puncture needle is pulled out, the compression cotton pad 1102 can also cover the puncture point to stop bleeding.

[0057] In this embodiment, reinforcing ribs 12 are evenly arranged in a circular array between the outer side of the outer shell 1 and the top of the bottom plate 7 .

[0058] Partial working principle: The use of the reinforcing ribs 12 increases the connection stability between the outer shell 1 and the bottom plate 7.

[0059] The above description is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the scope disclosed by the present invention, which belong to the protection scope of the present invention.

Claims

1. An anesthesia puncture needle guide structure, comprising an outer shell (1), characterized in that: The top and bottom of the outer shell (1) are symmetrical to each other and are both truncated, the top and bottom of the outer shell (1) are located on the same straight line and are both provided with puncture openings (2), the inner bottom of the outer shell (1) is provided with an insertion locking mechanism (3) for blocking the puncture needle from moving downward, the middle position of the outer shell (1) is provided with an insertion unlocking mechanism (4) for releasing the puncture needle from moving downward, the inner top of the outer shell (1) is provided with a withdrawal locking mechanism (5) for blocking the puncture needle from moving upward, and the top of the outer shell (1) is provided with a The invention provides a withdrawal unlocking mechanism (6) for releasing the puncture needle from the upward fixed state, a bottom plate (7) is horizontally fixed to the bottom end of the outer shell (1), a through hole (8) cooperating with the puncture port (2) is provided on the bottom plate (7), adhesive pads (9) are evenly arranged in a circular array on the outer side of the bottom of the bottom plate (7), a disinfectant cleaning mechanism (10) is provided at the bottom of the bottom plate (7) and between the adhesive pads (9), and a puncture point hemostasis mechanism (11) for pressing the puncture point is provided inside the through hole (8); The insertion locking mechanism (3) comprises a pressing spring (301), a lower limiting ring (302), a lower cone sleeve (303), a lower limiting groove (304) and a lower ball (305); the pressing spring (301) is vertically arranged at the middle position inside the outer shell (1); the lower limiting ring (302) is arranged at the bottom end of the pressing spring (301); the lower cone sleeve (303) is fixed at the bottom end of the lower limiting ring (302); the bottom end of the lower cone sleeve (303) is fitted with the inner bottom of the outer shell (1); the outer side of the lower cone sleeve (303) is evenly provided with lower limiting grooves (304) along the circumferential direction; and the lower limiting grooves (304) are all provided with lower balls (305) inside. The extraction locking mechanism (5) comprises an upper limit ring (501), an upper cone sleeve (502), an upper limit groove (503) and an upper ball (504); the upper limit ring (501) is mounted on the top of the extrusion spring (301); the upper cone sleeve (502) is fixed to the top of the upper limit ring (501); the upper limit grooves (503) are evenly arranged on the outer side of the upper cone sleeve (502) along the circumferential direction; and the upper balls (504) are arranged inside the upper limit grooves (503).

2. The anesthesia puncture needle guide structure according to claim 1, characterized in that: The lower limit ring (302) and the upper limit ring (501) have the same structure, and the lower limit ring (302) and the upper limit ring (501) are arranged opposite to each other. Both the lower limit ring (302) and the upper limit ring (501) are provided with grooves that cooperate with the extrusion spring (301).

3. The anesthesia puncture needle guide structure according to claim 2, characterized in that: The number and size of the upper balls (504) and the lower balls (305) are the same, and both the upper balls (504) and the lower balls (305) are provided in three groups and are distributed in a circular array.

4. The anesthesia puncture needle guide structure according to claim 3, characterized in that: The insertion unlocking mechanism (4) comprises a gear (401), a first rack (402), a vertical groove (403), a second rack (404) and a pressure ring (405); the gear (401) is evenly rotatably mounted on the inner side of the outer shell (1); the first rack (402) meshing with the gear (401) is evenly and vertically mounted on the outer side of the lower limit ring (302); a vertical groove (403) is evenly and vertically opened at a position corresponding to the gear (401) on the outer side of the outer shell (1); a second rack (404) is vertically and slidably mounted inside the vertical groove (403); the second rack (404) meshes with the gear (401); a pressure ring (405) is sleeved on the outer side of the outer shell (1); and the top of the second rack (404) is fixedly connected to the pressure ring (405).

5. The anesthesia puncture needle guide structure according to claim 4, characterized in that: The extraction unlocking mechanism (6) comprises an adjusting ring (601), an L-shaped connecting rod (602), a fixing ring (603), a clamping block (604) and a clamping groove (605). The adjusting ring (601) is rotatably mounted on the top of the outer shell (1), and the adjusting ring (601) is located above the pressing ring (405) and sleeved on the outer shell (1). The outer side of the upper limit ring (501) is evenly fixed with an L-shaped connecting rod (602). The top of the L-shaped connecting rod (602) is penetrated by The outer side of the outer shell (1) is connected to the outer shell (1) in a vertical sliding manner, the top end of the L-shaped connecting rod (602) is fitted with the bottom end of the adjusting ring (601), a fixing ring (603) is horizontally fixed to the top end of the outer side of the outer shell (1), a clamping block (604) is evenly fixed below the fixing ring (603) and on the outer circumferential surface of the outer shell (1), and a clamping groove (605) that cooperates with the clamping block (604) is evenly opened on the inner side of the adjusting ring (601) along the circumferential direction.

6. The anesthesia puncture needle guide structure according to claim 5, characterized in that: The disinfectant cleaning mechanism (10) comprises a hidden groove (1001), a spring piece (1002) and a cleaning cotton strip (1003). The hidden groove (1001) is evenly arranged at the bottom of the bottom plate (7) in a circular array and is located between adjacent adhesive pads (9). Cleaning cotton strips (1003) are vertically slidably installed inside the hidden groove (1001). The length of the cleaning cotton strip (1003) is greater than the width of the adhesive pad (9). A spring piece (1002) is provided between the cleaning cotton strip (1003) and the top of the hidden groove (1001).

7. The anesthesia puncture needle guide structure according to claim 6, characterized in that: The puncture point hemostasis mechanism (11) comprises a fan-shaped valve sheet (1101) and a compression cotton pad (1102). The fan-shaped valve sheet (1101) is evenly fixed on the inner wall of the through hole (8), and the sides of adjacent fan-shaped valve sheets (1101) are in contact with each other. The bottom of each fan-shaped valve sheet (1101) is provided with a compression cotton pad (1102).

8. The anesthesia puncture needle guide structure according to claim 1, characterized in that: Reinforcing ribs (12) are evenly arranged in a ring array between the outer side of the outer shell (1) and the top of the bottom plate (7).

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