Orthopedic surgical puncture device for ease of use

Abstract

The application provides an orthopedic surgery puncture device convenient to use, and relates to the technical field of medical devices, which comprises a needle core sleeve body, a push ring is sleeved on the needle core sleeve body, pressing plates are arranged on the left and right sides of the bottom of the needle core sleeve body, the two pressing plates are symmetrically distributed, and a push rod is arranged between the pressing plates and the push ring. In the application, the push ring and the pressing plates are arranged, so that the needle core sleeve body does not need to be held by hand, the hands can be held to stably hold the frame body to perform puncture on the needle core body, the butt joint structure arranged on the needle core body and the rotating pipe can make the positioning of the assembly process of the needle core body more accurate, the needle core body can be quickly disassembled and replaced, the problem that the medical staff needs to hold the needle core sleeve with one hand and hold the puncture needle core to perform puncture with the other hand during the surgery process is solved, the use is more convenient, the needle core sleeve is less likely to deviate, the stability of the surgery is affected, and the connection structure of the puncture needle core and the hand holding part is not easy to disassemble, so that the assembly and use efficiency is low.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an easy-to-use orthopedic surgical puncture device. Background Technology

[0002] In orthopedic surgery, lesions such as osteophyte formation in joints require minimally invasive surgical treatment. Currently, the bone marrow aspiration needles used in clinical practice mainly consist of a needle core, a needle core sheath, and a handle.

[0003] However, with the current traditional orthopedic surgical puncture instruments, during the operation, medical staff need to hold the needle core sleeve with one hand and the puncture needle core with the other hand to perform the puncture, which is quite cumbersome. The needle core sleeve is also prone to displacement, affecting the stability of the operation. At the same time, the puncture needle core needs to be manually pushed down by the hand-held part and rotated for puncture, which is cumbersome, laborious and inconvenient. Moreover, the connection structure between the puncture needle core and the hand-held part is usually not easy to disassemble, making the replacement process complicated when the tip of the puncture needle core is bent or worn, resulting in low assembly and use efficiency. Summary of the Invention

[0004] In view of this, the present invention provides an easy-to-use orthopedic surgical puncture device, which has a push ring and a pressure plate, so that the needle core body does not need to be supported by hand, and can ensure that the needle core body can be punctured stably by supporting the hand holding frame with both hands; by setting a docking structure between the needle core body and the rotating tube, the needle core body assembly process can be more accurately positioned, and the needle core body can be quickly disassembled and replaced.

[0005] This invention provides an easy-to-use orthopedic surgical puncture device, specifically comprising: a needle core sleeve, on which a push ring is fitted; pressure plates are provided on the left and right sides of the bottom of the needle core sleeve; the two pressure plates are symmetrically distributed, and a push rod is provided between the pressure plates and the push ring; a handheld frame is provided on the needle core sleeve; a rotating tube is provided inside the handheld frame; the needle core body is provided at the bottom end of the rotating tube; a sliding ring is provided on the handheld frame; and a limiting circular plate is provided inside the sliding ring.

[0006] Optionally, the needle core sleeve has a cylindrical through-cavity structure, and the top of the needle core sleeve is provided with a sleeve opening. The inner circumferential surface of the needle core sleeve is provided with three guide grooves, which are distributed in a circular array. The bottom of the needle core sleeve is provided with a base, and two pressure plates are hinged to the base through a hinge shaft. The side wall of the needle core sleeve is provided with two limiting grooves, which are distributed symmetrically.

[0007] Optionally, a limiting rod is provided in the limiting groove, and a compression spring is fitted on the limiting rod.

[0008] Optionally, the outer circumferential surface of the push ring is provided with two connecting lugs, and the connecting lugs of the push ring are rotatably connected to the push rod through a pin. A guide ring is provided at the center of the push ring, and two connecting sliders are provided on the outer circumferential surface of the guide ring. The guide ring is connected to the push ring through the connecting sliders. The connecting slider is slidably installed in the limiting groove, and the limiting round rod slides through the connecting slider. A compression spring supports the top of the connecting slider.

[0009] Optionally, the pressure plate has a half-circular structure, and a medical patch is provided at the bottom of the pressure plate. A rotating groove is provided at the top of the pressure plate, and a connecting ear is provided in the rotating groove. The connecting ear of the rotating groove is rotatably connected to the push rod through a pin.

[0010] Optionally, the handheld frame includes a guide rod, a first rotating sleeve, a second rotating sleeve, and a handle. The guide rod is distributed in three circular arrays, and the guide rod is slidably connected to the needle core sleeve through a guide groove. The upper and lower ends of the three guide rods are provided with a second rotating sleeve and a first rotating sleeve, and the top of the second rotating sleeve is provided with a handle.

[0011] Optionally, the rotating tube is a cylindrical cavity structure, and the side wall of the rotating tube is provided with a through groove, which is a serpentine structure. The upper and lower ends of the rotating tube are provided with a first rotating ring and a second rotating ring, and the rotating tube is rotatably connected to the second rotating sleeve and the first rotating sleeve through the first rotating ring and the second rotating ring, respectively. The bottom of the first rotating ring is provided with a ratchet claw.

[0012] Optionally, the needle core body slides through the guide ring, and the top of the needle core body is provided with a ratchet sleeve, and the ratchet claw is inserted into the ratchet sleeve of the needle core body.

[0013] Optionally, a retaining ring is provided at the top end of the outer peripheral surface of the sliding ring, and the outer peripheral surfaces of the sliding ring and the retaining ring are provided with sliding grooves, and the sliding ring and the retaining ring are slidably connected to the guide rod through the sliding grooves.

[0014] Optionally, the outer circumferential surface of the limiting circular plate is provided with two connecting posts, which are symmetrically distributed. The limiting circular plate is connected to the sliding ring through the connecting posts. The sliding ring is fitted onto the rotating tube, and the limiting circular plate is located inside the rotating tube. The connecting posts are slidably connected to the rotating tube through a through groove.

[0015] Beneficial effects

[0016] According to various embodiments of the orthopedic surgical puncture device of the present invention, the push ring and pressure plate are provided. The push ring can slide downward along the needle core sleeve, and the two pressure plates are opened by the push rod, so that the base and the left and right pressure plates come into contact with the human body to support the needle core sleeve. Therefore, it is not necessary to hold the needle core sleeve by hand. It can ensure that the needle core body can be punctured stably by holding the hand frame with both hands. At the same time, the elasticity of the compression spring is used to keep the pressure plate flat, and the medical patch effectively prevents the needle core sleeve from shifting, which greatly improves the stability of the puncture process.

[0017] In addition, the top of the needle core body of this device is equipped with a ratchet sleeve, and the bottom of the rotating tube is equipped with a ratchet claw. By setting a docking structure between the needle core body and the rotating tube, the positioning of the needle core body during assembly can be more accurate. Moreover, when the tip of the needle core body is bent or worn during puncture, it can be quickly disassembled and replaced, thereby improving the assembly and use efficiency of the tail needle core body.

[0018] Furthermore, due to the presence of a sliding ring and a limiting circular plate, during the puncture process, by pushing the handheld frame downwards, the sliding ring engages with the opening at the top of the needle core sleeve. The sliding ring is fitted outside the rotating tube, and the limiting circular plate is located inside the rotating tube. By sliding the connecting column and the through groove, the needle core can rotate within the handheld frame as the rotating tube moves downwards, thus driving the needle core body to achieve the rotational puncture process. This eliminates the hassle of manually pushing and rotating the needle core body, simplifying the operation steps and making it quick, convenient, and labor-saving to use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0020] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0021] In the attached diagram:

[0022] Figure 1 A schematic diagram of the overall structure of an orthopedic surgical trocar according to an embodiment of the present invention is shown;

[0023] Figure 2 A schematic diagram of the needle core sleeve, push ring, pressure plate, and push rod of an orthopedic surgical trocar according to an embodiment of the present invention is shown;

[0024] Figure 3 A schematic diagram of the needle core sleeve of an orthopedic surgical trocar according to an embodiment of the present invention is shown;

[0025] Figure 4 A schematic diagram of the pusher ring of an orthopedic surgical trocar according to an embodiment of the present invention is shown;

[0026] Figure 5 A schematic diagram showing the exploded state of the base, pressure plate, and push rod of an orthopedic surgical trocar according to an embodiment of the present invention is shown;

[0027] Figure 6 A schematic diagram of the handpiece, rotating tube, needle core body, and sliding ring of an orthopedic surgical trocar according to an embodiment of the present invention is shown.

[0028] Figure 7A schematic diagram of the rotating tube and needle core of an orthopedic surgical trocar according to an embodiment of the present invention in an exploded state is shown;

[0029] Figure 8 A schematic diagram of the handpiece and sliding ring of an orthopedic surgical trocar according to an embodiment of the present invention is shown in an exploded state.

[0030] List of reference numerals

[0031] 1. Needle core sleeve; 101. Sleeve opening; 102. Guide groove; 103. Base; 104. Limiting groove; 1041. Limiting round rod; 1042. Compression spring; 2. Push ring; 201. Connecting slider; 202. Guide ring; 3. Pressure plate; 301. Medical patch; 302. Rotating groove; 4. Push rod; 5. Handheld frame; 501. Guide rod; 502. First rotating sleeve; 503. Second rotating sleeve; 504. Handle; 6. Rotating tube; 601. Through groove; 602. First rotating ring; 603. Ratchet pawl; 604. Second rotating ring; 7. Needle core body; 701. Ratchet sleeve; 8. Sliding ring; 801. Retaining ring; 802. Sliding groove; 9. Limiting round plate; 901. Connecting post. Detailed Implementation

[0032] To make the objectives, solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0033] Example: Please refer to Figures 1 to 8 :

[0034] This invention proposes an easy-to-use orthopedic surgical puncture device, comprising: a needle core sleeve 1, on which a push ring 2 is fitted; pressure plates 3 are provided on the left and right sides of the bottom of the needle core sleeve 1; the two pressure plates 3 are distributed symmetrically on the left and right, and a push rod 4 is provided between the pressure plates 3 and the push ring 2; a handheld frame 5 is provided on the needle core sleeve 1; a rotating tube 6 is provided inside the handheld frame 5; a needle core body 7 is provided at the bottom end of the rotating tube 6; a sliding ring 8 is provided on the handheld frame 5; and a limiting circular plate 9 is provided inside the sliding ring 8.

[0035] Furthermore, according to embodiments of the present invention, such as Figures 3 to 5 As shown, the needle core sleeve 1 has a cylindrical through-cavity structure, and the top of the needle core sleeve 1 is provided with a sleeve opening 101. The inner circumferential surface of the needle core sleeve 1 is provided with three guide grooves 102, and the three guide grooves 102 are distributed in a ring array. The bottom of the needle core sleeve 1 is provided with a base 103, and two pressure plates 3 are hinged to the base 103 through a hinge shaft. The side wall of the needle core sleeve 1 is provided with two limiting grooves 104, and the two limiting grooves 104 are distributed symmetrically.

[0036] A limiting rod 1041 is provided in the limiting groove 104, and a compression spring 1042 is fitted on the limiting rod 1041.

[0037] The outer circumferential surface of the push ring 2 is provided with two connecting ears, and the connecting ears of the push ring 2 are rotatably connected to the push rod 4 through a pin. The center position of the push ring 2 is provided with a guide ring 202, and the outer circumferential surface of the guide ring 202 is provided with two connecting sliders 201. The guide ring 202 is connected to the push ring 2 through the connecting sliders 201. The connecting sliders 201 are slidably installed in the limiting groove 104, and the limiting round rod 1041 slides through the connecting sliders 201. The compression spring 1042 is supported on the top of the connecting sliders 201.

[0038] The pressure plate 3 has a half-circular structure, and a medical patch 301 is provided at the bottom of the pressure plate 3. A rotating groove 302 is provided at the top of the pressure plate 3. The rotating groove 302 has connecting ears, and the connecting ears of the rotating groove 302 are rotatably connected to the push rod 4 through a pin. This device has a push ring 2 and a pressure plate 3. The push ring 2 can slide down along the needle core sleeve 1. The push rod 4 opens the two pressure plates 3, so that the base 103 and the left and right pressure plates 3 come into contact with the human body to support the needle core sleeve 1. Therefore, it is not necessary to hold the needle core sleeve 1 with your hands. It can ensure that the needle core body 7 can be punctured stably by holding the hand-held frame 5 with both hands. At the same time, the elasticity of the compression spring 1042 keeps the pressure plate 3 flat, and the medical patch 301 effectively prevents the needle core sleeve 1 from shifting, which greatly improves the stability of the puncture process.

[0039] Furthermore, according to embodiments of the present invention, such as Figure 6 and Figure 7 As shown, the handheld frame 5 includes a guide rod 501, a first rotating sleeve 502, a second rotating sleeve 503, and a handle 504. The guide rod 501 is distributed in three places in a circular array, and the guide rod 501 is slidably connected to the needle core sleeve 1 through the guide groove 102. The upper and lower ends of the three guide rods 501 are provided with the second rotating sleeve 503 and the first rotating sleeve 502, and the top of the second rotating sleeve 503 is provided with a handle 504.

[0040] The rotating tube 6 has a cylindrical cavity structure, and the side wall of the rotating tube 6 is provided with a through groove 601, which has a serpentine structure. The upper and lower ends of the rotating tube 6 are provided with a first rotating ring 602 and a second rotating ring 604, and the rotating tube 6 is rotatably connected to the second rotating sleeve 503 and the first rotating sleeve 502 respectively through the first rotating ring 602 and the second rotating ring 604. The bottom of the first rotating ring 602 is provided with a ratchet pawl 603.

[0041] The needle core body 7 slides through the guide ring 202. The top of the needle core body 7 is provided with a ratchet sleeve 701, and a ratchet pawl 603 is inserted into the ratchet sleeve 701 of the needle core body 7. The top of the needle core body 7 of this device is provided with a ratchet sleeve 701, and the bottom of the rotating tube 6 is provided with a ratchet pawl 603. By setting a docking structure between the needle core body 7 and the rotating tube 6, the positioning of the needle core body 7 during assembly can be more accurate. Moreover, when the tip of the needle core body 7 bends or wears during puncture, it can be quickly disassembled and replaced, thereby improving the assembly and use efficiency of the needle core body 7.

[0042] Furthermore, according to embodiments of the present invention, such as Figure 6 and Figure 8 As shown, a retaining ring 801 is provided at the top end of the outer peripheral surface of the sliding ring 8, and a sliding groove 802 is provided on the outer peripheral surfaces of the sliding ring 8 and the retaining ring 801. The sliding ring 8 and the retaining ring 801 are slidably connected to the guide rod 501 through the sliding groove 802.

[0043] The outer circumference of the limiting circular plate 9 is provided with two connecting posts 901, which are symmetrically distributed. The limiting circular plate 9 is connected to the sliding ring 8 through the connecting posts 901. The sliding ring 8 is fitted onto the rotating tube 6, and the limiting circular plate 9 is located inside the rotating tube 6. The connecting posts 901 are slidably connected to the rotating tube 6 through the through groove 601. This device has a sliding ring 8 and a limiting circular plate 9. During the puncture process, by pushing the handheld frame 5 downward, the sliding ring 8 is engaged with the sleeve opening 101 at the top of the needle core sleeve 1. The sliding ring 8 is fitted onto the outside of the rotating tube 6, and the limiting circular plate 9 is located inside the rotating tube 6. By sliding the connecting posts 901 and the through groove 601, the device can rotate inside the handheld frame 5 during the downward movement of the rotating tube 6, thereby driving the needle core body 7 to achieve the rotational puncture process. This eliminates the trouble of manually pushing and rotating the needle core body 7, simplifies the operation steps, and is quick, convenient, and labor-saving to use.

[0044] The specific usage and function of this embodiment: In this invention, the push ring 2 can slide downward along the needle core sleeve 1, and the push rod 4 opens the two pressure plates 3, so that the base 103 and the left and right pressure plates 3 come into contact with the human body to support the needle core sleeve 1, thus eliminating the need to hold the needle core sleeve 1 by hand. This ensures that the needle core body 7 can be punctured stably by holding the hand-held frame 5 with both hands. At the same time, the elasticity of the compression spring 1042 keeps the pressure plates 3 flat, and the medical patch 301 effectively prevents the needle core sleeve 1 from shifting. The top of the needle core body 7 is provided with a ratchet sleeve 701, and the bottom of the rotating tube 6 is provided with a ratchet pawl 603. By connecting the needle core body 7 and the rotating tube 6, the needle core body 7 and the rotating tube 6 can be punctured stably. The moving tube 6 is equipped with a docking structure, which makes the positioning of the needle core body 7 more accurate during assembly. Moreover, when the tip of the needle core body 7 bends or wears during puncture, it can be quickly disassembled and replaced. During puncture, by pushing the handheld frame 5 downward, the sliding ring 8 is engaged with the sleeve opening 101 at the top of the needle core sleeve 1. The sliding ring 8 is fitted outside the rotating tube 6, and the limiting circular plate 9 is located inside the rotating tube 6. By sliding the connecting column 901 and the through groove 601, it can rotate inside the handheld frame 5 during the downward movement of the rotating tube 6, and drive the needle core body 7 to achieve the rotational puncture process. This eliminates the trouble of manually pushing and rotating the needle core body 7.

[0045] Finally, it should be noted that when describing the position of each component and the mating relationship between them, the present invention usually uses one or a pair of components as examples. However, those skilled in the art should understand that such positions, mating relationships, etc., are also applicable to other components or other pairs of components.

[0046] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the scope of protection of the present invention, which is determined by the appended claims.

Claims

1. A user-friendly orthopedic surgical trocar, characterized in that: An easy-to-use orthopedic surgical puncture device includes: a needle core sleeve (1), on which a push ring (2) is fitted; pressure plates (3) are provided on the left and right sides of the bottom of the needle core sleeve (1); the two pressure plates (3) are distributed symmetrically on the left and right, and a push rod (4) is provided between the pressure plates (3) and the push ring (2); a handheld frame (5) is provided on the needle core sleeve (1); a rotating tube (6) is provided inside the handheld frame (5); a needle core body (7) is provided at the bottom end of the rotating tube (6); a sliding ring (8) is provided on the handheld frame (5); a limiting circular plate (9) is provided inside the sliding ring (8); The handheld frame (5) includes a guide rod (501), a first rotating sleeve (502), a second rotating sleeve (503), and a handle (504). The guide rod (501) is distributed in three circular arrays, and the guide rod (501) is slidably connected to the needle core sleeve (1) through the guide groove (102). The upper and lower ends of the three guide rods (501) are provided with the second rotating sleeve (503) and the first rotating sleeve (502), and the top of the second rotating sleeve (503) is provided with a handle (504). The rotating tube (6) has a cylindrical cavity structure, and the side wall of the rotating tube (6) is provided with a through groove (601), and the through groove (601) has a serpentine structure. The upper and lower ends of the rotating tube (6) are provided with a first rotating ring (602) and a second rotating ring (604), and the rotating tube (6) is rotatably connected to the second rotating sleeve (503) and the first rotating sleeve (502) through the first rotating ring (602) and the second rotating ring (604) respectively. The bottom of the first rotating ring (602) is provided with a ratchet pawl (603); The needle core body (7) slides through the guide ring (202), and the top of the needle core body (7) is provided with a ratchet sleeve (701), and the ratchet pawl (603) is inserted into the ratchet sleeve (701) of the needle core body (7); A retaining ring (801) is provided at the top end of the outer peripheral surface of the sliding ring (8), and a sliding groove (802) is provided on the outer peripheral surfaces of the sliding ring (8) and the retaining ring (801), and the sliding ring (8) and the retaining ring (801) are slidably connected to the guide rod (501) through the sliding groove (802); The outer circumferential surface of the limiting circular plate (9) is provided with two connecting posts (901), and the two connecting posts (901) are distributed symmetrically. The limiting circular plate (9) is connected to the sliding ring (8) through the connecting posts (901). The sliding ring (8) is fitted on the rotating tube (6), and the limiting circular plate (9) is located inside the rotating tube (6). The connecting posts (901) are slidably connected to the rotating tube (6) through the through groove (601).

2. The easy-to-use orthopedic surgical trocar as described in claim 1, characterized in that: The needle core sleeve (1) is a cylindrical through-cavity structure, and the top of the needle core sleeve (1) is provided with a sleeve opening (101). The inner circumferential surface of the needle core sleeve (1) is provided with three guide grooves (102), and the three guide grooves (102) are distributed in a ring array. The bottom of the needle core sleeve (1) is provided with a base (103), and two pressure plates (3) are hinged to the base (103) through a hinge shaft. The side wall of the needle core sleeve (1) is provided with two limiting grooves (104), and the two limiting grooves (104) are distributed symmetrically.

3. The easy-to-use orthopedic surgical trocar as described in claim 2, characterized in that: The limiting groove (104) is provided with a limiting rod (1041), and a compression spring (1042) is fitted on the limiting rod (1041).

4. The easy-to-use orthopedic surgical trocar as described in claim 1, characterized in that: The outer circumferential surface of the push ring (2) is provided with two connecting ears, and the connecting ears of the push ring (2) are rotatably connected to the push rod (4) through a pin. The center position of the push ring (2) is provided with a guide ring (202), and the outer circumferential surface of the guide ring (202) is provided with two connecting sliders (201). The guide ring (202) is connected to the push ring (2) through the connecting sliders (201). The connecting sliders (201) are slidably installed in the limiting groove (104), and the limiting round rod (1041) slides through the connecting sliders (201). The compression spring (1042) is supported on the top of the connecting sliders (201).

5. The easy-to-use orthopedic surgical trocar as described in claim 1, characterized in that: The pressure plate (3) is a half-circular structure, and a medical patch (301) is provided at the bottom of the pressure plate (3). A rotating groove (302) is provided at the top of the pressure plate (3). A connecting ear is provided in the rotating groove (302), and the connecting ear of the rotating groove (302) is rotatably connected to the push rod (4) through a pin.

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