A device for extracting fluid from orthopedic joints

Abstract

The present invention relates to an extraction device, and in particular to an orthopedic joint effusion extraction device. The technical problem of the present invention is to provide an orthopedic joint effusion extraction device that can adjust the exposed length of the needle according to actual conditions. The technical implementation scheme of the present invention is: an orthopedic joint effusion extraction device, including a frame, a grip, a syringe, a needle, a moving component and an extraction component. A frame is provided on the top of the grip, a moving component is provided on one side of the grip, a syringe is placed on the moving component, a needle is provided on one side of the syringe, the needle and the frame are slidably matched, and an extraction component is provided on the side of the frame away from the needle. In the process of the clamping block moving to the right, it will also move inward at the same time, and the clamping block can clamp the syringe, so that when the pulling block is pulled to move, it can be avoided that the syringe will be moved together, so that the extraction of effusion can be better performed.

Description

Technical Field

[0001] The invention relates to an extraction device, in particular to an orthopedic joint effusion extraction device. Background Art

[0002] Joint effusion is usually caused by trauma, infection and various types of joint inflammation. Common symptoms are joint pain, swelling and movement disorders. It is generally treated by restricting joint movement, giving medication and joint puncture. Orthopedics is a department that mainly studies skeletal muscles. Therefore, when there is effusion in the joint that needs to be extracted, it is often done by going to the orthopedics department. During the puncture treatment, a needle is usually inserted into the joint and then the effusion is extracted. Nowadays, it is usually done by manually holding a syringe to insert the needle into the joint. The needle is long and usually cannot be inserted directly all the way. Then, when holding the syringe manually, it is difficult to control the amount of needle insertion. The connection between the needle and the skin is just a dot, so it is very easy to shake when the hand is not stable, causing the needle to cause damage to the bones.

[0003] Therefore, it is necessary to design an orthopedic joint effusion extraction device that can adjust the exposed length of the needle according to actual conditions. Summary of the invention

[0004] In order to overcome the disadvantages that it is difficult to control the amount of needle insertion when holding the syringe manually, and the connection between the needle and the skin is only a dot, which makes it very easy to shake when the hand is not stable, causing the needle to damage the bones, the technical problem of the present invention is: to provide an orthopedic joint fluid extraction device that can adjust the exposed length of the needle according to actual conditions.

[0005] The technical implementation scheme of the present invention is: an orthopedic joint fluid extraction device, including a frame, a grip, a syringe, a needle, a moving component and an extraction component. The frame is provided on the top of the grip, and a moving component is provided on one side of the grip. A syringe is placed on the moving component, and a needle is provided on one side of the syringe. The needle is slidably matched with the frame, and an extraction component is provided on the side of the frame away from the needle.

[0006] In a preferred embodiment of the present invention, the moving assembly includes a first guide rail, a sliding frame, a T-shaped support rod and a pulling frame. The first guide rail is provided in the middle of the top of the grip rod, a sliding frame is slidably provided on one side of the first guide rail, a pulling frame is provided at one end of the sliding frame, the pulling frame passes through the frame and is slidably connected, and T-shaped support rods are symmetrically provided on the sliding frame.

[0007] In a preferred embodiment of the present invention, the extraction assembly includes a placement block, a pull rod and a pulling block. A pull rod is slidably provided on one side of the frame. The pull rod is arranged to pass through one side of the frame. A pulling block is provided at one end of the pull rod, and a placement block is provided at the end of the pull rod away from the pulling block.

[0008] In a preferred embodiment of the present invention, a clamping assembly is also included, which includes a special-shaped connecting rod, a first connecting rod, a first spring and a clamping block. Special-shaped connecting rods are symmetrically and slidably provided on both sides of the sliding frame. The special-shaped connecting rods are located on the outside of the adjacent T-shaped support rods. The first connecting rod is provided in the middle of the special-shaped connecting rods, and a clamping block is provided on the top of the special-shaped connecting rods. A first spring is connected between the special-shaped connecting rods and the sliding frame.

[0009] In a preferred embodiment of the present invention, it also includes a positioning assembly, the positioning assembly includes a pressure plate, a second spring, a pressure rod, a third spring, a pull wire, a second connecting rod and a fourth spring, a second connecting rod is slidably provided on one side of the pulling frame, the fourth spring is connected on both sides between the second connecting rod and the pulling frame, a pressure rod is slidably provided on both sides of the sliding frame, the pressure rod is located on the inner side of the special-shaped connecting rod, the third spring is connected between the pressure rod and the sliding frame, a wire wheel is symmetrically rotatably provided on one side of the pulling frame, a pull wire is connected between the pressure rod and the second connecting rod, the pull wire is wound around the corresponding wire wheel, a pressure plate is slidably provided in the sliding frame, and the second spring is symmetrically connected between the two sides of the bottom of the pressure plate and the sliding frame.

[0010] In a preferred embodiment of the present invention, it also includes a support assembly, which includes a third connecting rod, an L-shaped support rod, a fifth spring, a wedge block, a second guide rail, a connecting block, a sixth spring and a seventh spring. The third connecting rod is symmetrically provided on one side of the grip rod, an L-shaped support rod is slidably connected between the third connecting rods, and the fifth spring is connected between the L-shaped support rod and the third connecting rod. A wedge block is symmetrically slidably provided on one side of the top of the grip rod, the wedge block is located on one side of the third connecting rod, and the seventh spring is connected between the wedge block and the grip rod. A second guide rail is symmetrically provided on one side of the sliding frame close to the third connecting rod, and connecting blocks are slidably provided in the second guide rail, and a sixth spring is connected between the connecting block and the adjacent second guide rail.

[0011] In a preferred embodiment of the present invention, it also includes a cover plate, a handle and a hinge. The hinge is symmetrically arranged on one side of the frame, the cover plate is rotatably connected between the hinges, and a handle is arranged in the middle of the top of the cover plate.

[0012] In a preferred embodiment of the present invention, an elastic sheet is provided in the middle portion of the second guide rail.

[0013] Beneficial effects:

[0014] 1. When the clamp moves to the right, it will also move inward, so the clamp can clamp the syringe. This can prevent the syringe from moving when the pulling block is pulled, thereby better extracting the effusion.

[0015] 2. By moving the pressure plate downward to contact the first guide rail, it can cooperate with the clamping block to form a double-layer protection, and fix the needle and syringe in this position, which has a better effect on fixing the needle and syringe.

[0016] 3. The syringe will slide on the L-shaped support rod during the movement. The L-shaped support rod can play a supporting role, making the syringe more stable and preventing the syringe from falling from the sliding frame.

[0017] 4. The connecting block moves to the left so that the wedge block no longer blocks the L-shaped support rod, and the L-shaped support rod can automatically move upward to drive the syringe out of the rack, making it easier for medical staff to take it out. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the present invention.

[0020] Figure 3 It is a schematic cross-sectional three-dimensional structural diagram of the moving component and the extraction component of the present invention.

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the clamping assembly and the positioning assembly of the present invention.

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the clamping assembly, the positioning assembly and the supporting assembly of the present invention.

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the moving assembly, the clamping assembly and the positioning assembly of the present invention.

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the moving component and the positioning component of the present invention.

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the support assembly of the present invention.

[0026] Fig. 9 It is a schematic diagram of the enlarged three-dimensional structure of A of the present invention.

[0027] Fig.10 It is a schematic diagram of the three-dimensional structure of the cover plate, handle and hinge of the present invention.

[0028] The markings of the components in the accompanying drawings are as follows: 1. frame, 2. grip, 3. syringe, 4. needle, 5. moving assembly, 51. first guide rail, 52. sliding frame, 53. T-shaped support rod, 54. pulling frame, 6. extraction assembly, 62. placement block, 63. pull rod, 64. pulling block, 7. clamping assembly, 71. special-shaped connecting rod, 72. first connecting rod, 73. first spring, 74. clamping block, 8. positioning assembly, 81. pressure plate, 82. second spring, 83. pressure rod, 84. third spring, 85. pull wire, 86. second connecting rod, 87. fourth spring, 9. support assembly, 91. third connecting rod, 92. L-shaped support rod, 93. fifth spring, 94. wedge block, 95. second guide rail, 96. connecting block, 97. sixth spring, 98. seventh spring, 10. cover plate, 11. handle, 12. hinge. DETAILED DESCRIPTION

[0029] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, lateral, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position.

[0030] Example 1

[0031] A device for extracting fluid from orthopedic joints, such as Figure 1-10 As shown, it includes a frame 1, a grip 2, a syringe 3, a needle 4, a moving component 5 and an extraction component 6. The frame 1 is provided on the top of the grip 2 by welding, the moving component 5 is provided on the left side of the grip 2, the syringe 3 is placed on the moving component 5, the needle 4 is provided on the left side of the syringe 3, the needle 4 is slidably matched with the frame 1, and the extraction component 6 is provided on the right side of the frame 1.

[0032] The moving assembly 5 includes a first guide rail 51, a sliding frame 52, a T-shaped support rod 53 and a pulling frame 54. The first guide rail 51 is provided in the middle of the top of the gripping rod 2 by welding, and a sliding frame 52 is slidably provided on the left side of the first guide rail 51. A pulling frame 54 is provided at the front end of the sliding frame 52. The pulling frame 54 passes through the frame 1 and is slidably connected. T-shaped support rods 53 are symmetrically provided on the sliding frame 52 by welding.

[0033] The extraction assembly 6 includes a placement block 62, a pull rod 63 and a pulling block 64. The pull rod 63 is slidably provided on the right side of the frame 1. The pull rod 63 is set to pass through the right side of the frame 1. The pulling block 64 is provided at the right end of the pull rod 63, and the placement block 62 is provided at the left end of the pull rod 63.

[0034] When it is necessary to extract the effusion in the joint, the medical staff can place the syringe 3 on the T-shaped support rod 53. At this time, the piston rod of the syringe 3 is on the placement block 62. Since the length of the needle 4 exposed from the frame 1 exceeds the thickness of the patient's joint, the syringe 3 needs to be moved to the right first. At this time, the medical staff can pull the pulling frame 54 to move to the right, thereby driving the sliding frame 52 and the T-shaped support rod 53 to move to the right, so that the syringe 3 and the needle 4 can be driven to move to the right. At this time, the piston rod of the syringe 3 also drives the placement block 62, the pull rod 63 and the pulling block 64 to move to the right. When the device is moved to the appropriate position, the gripping rod 2 can be held by hand, so that the device can be carried and moved. When it is moved to the patient's side, the syringe 3 can be pressed first to prevent the syringe 3 from moving, and the needle 4 can be inserted into the patient's joint. At this time, the length of the needle 4 exposed from the frame 1 has been adjusted according to the width of the patient's joint, so that the frame 1 can contact the patient's skin, and then the pulling block 64 can be pulled to the right, and the pulling block 64 moves to the right to drive the pull rod 63 and the placement block 62 to move to the right, thereby driving the piston rod to move to the right, and the effusion at the patient's joint can be extracted into the syringe 3 through the needle 4. After the extraction is completed, the needle 4 can be pulled out from the patient, and then the device can be carried to the effusion treatment site by holding the handle 2, and the pulling block 64 is pushed back to the left, thereby driving the pull rod 63, the placement block 62 and the piston rod to move to the left, so that the effusion in the syringe 3 can be sprayed out through the needle 4 at the effusion treatment site, and then the pulling frame 54 can be moved to the left and pulled back, and the used needle 4 and syringe 3 can be taken out.

[0035] It also includes a clamping assembly 7, which includes a special-shaped connecting rod 71, a first connecting rod 72, a first spring 73 and a clamping block 74. Special-shaped connecting rods 71 ​​are symmetrically slidably provided on the left and right sides of the sliding frame 52. The special-shaped connecting rods 71 ​​are located on the outside of the adjacent T-shaped support rods 53. The first connecting rod 72 is provided in the middle of the special-shaped connecting rods 71, and a clamping block 74 is provided on the top of the special-shaped connecting rods 71. A first spring 73 is connected between the special-shaped connecting rods 71 ​​and the sliding frame 52.

[0036] The first spring 73 is used to release the first link 72 from the locking cam 74 so that the locking cam 74 can be released when the locking cam 74 is in a state of being released.

[0037] It also includes a positioning assembly 8, which includes a pressure plate 81, a second spring 82, a pressure rod 83, a third spring 84, a pull wire 85, a second connecting rod 86 and a fourth spring 87. A second connecting rod 86 is slidably provided on the upper side of the pulling frame 54, and fourth springs 87 are connected on both sides of the left and right sides between the second connecting rod 86 and the pulling frame 54. Pressure rods 83 are slidably provided on both sides of the sliding frame 52, and the pressure rod 83 is located on the inner side of the special-shaped connecting rod 71. The third spring 84 is connected between the pressure rod 83 and the sliding frame 52. A wire wheel is symmetrically rotatably provided on the lower front side of the pulling frame 54, and a pull wire 85 is connected between the pressure rod 83 and the second connecting rod 86. The pull wire 85 is wound around the corresponding wire wheel. A pressure plate 81 is slidably provided in the sliding frame 52, and second springs 82 are symmetrically connected front and back between the left and right sides of the bottom of the pressure plate 81 and the sliding frame 52.

[0038] Initially, the pressing plate 81 is in contact with the first guide rail 51. Since there is a large friction between the first guide rail 51 and the pressing plate 81, it is difficult to move the sliding frame 52 at this time. The second spring 82 is in a compressed state. When the position of the needle 4 needs to be adjusted, the medical staff can pull the second connecting rod 86 upward, the fourth spring 87 is compressed, and the second connecting rod 86 moves upward to pull the pull wire 85, thereby driving the pressing rod 83 to move forward through the pull wire 85 and no longer pressing the pressing plate 81. The third spring 84 is stretched, and under the action of the second spring 82 The pressure plate 81 is out of contact with the first guide rail 51, and the position of the needle 4 can be adjusted at this time. After the adjustment is completed, the second connecting rod 86 can be loosened. Under the action of the fourth spring 87, the second connecting rod 86 moves downward to reset and the pull wire 85 is loosened. Under the action of the third spring 84, the pressure rod 83 moves backward. The pressure rod 83 moves backward to press the pressure plate 81 to move downward and contact the first guide rail 51. In this way, it can cooperate with the clamping block 74 to form a double-layer protection, and the needle 4 and the syringe 3 are fixed in this position, which has a better effect on fixing the needle 4 and the syringe 3.

[0039] It also includes a support assembly 9, which includes a third connecting rod 91, an L-shaped supporting rod 92, a fifth spring 93, a wedge block 94, a second guide rail 95, a connecting block 96, a sixth spring 97 and a seventh spring 98. The third connecting rod 91 is symmetrically provided on the left side of the grip 2 by welding, and an L-shaped supporting rod 92 is slidably connected between the third connecting rod 91. The fifth spring 93 is connected between the L-shaped supporting rod 92 and the third connecting rod 91. A wedge block 94 is symmetrically provided on the left side of the top of the grip 2 by sliding, and the wedge block 94 is located on the left side of the third connecting rod 91. The seventh spring 98 is connected between the wedge block 94 and the grip 2. The second guide rail 95 is symmetrically provided on the left side of the sliding frame 52 by welding, and the second guide rail 95 is located on the right side of the third connecting rod 91. Connecting blocks 96 are slidably provided in the second guide rail 95, and the sixth spring 97 is connected between the connecting block 96 and the adjacent second guide rail 95. An elastic sheet is provided in the middle of the second guide rail 95.

[0040] Initially, the sixth spring 97 is in a compressed state. The medical staff can place the syringe 3 on the L-shaped support rod 92 and press downward at the same time, thereby driving the L-shaped support rod 92 to move downward, and the fifth spring 93 is compressed. As a result, the connecting block 96 moves downward and resets under the action of the sixth spring 97. At the same time, under the action of the elastic sheet, the connecting block 96 can be deformed during the downward movement of the connecting block 96, and the elastic sheet automatically resets after passing over the elastic sheet, thereby prolonging the time required for the connecting block 96 to move downward. At this time, the L-shaped support rod 92 moves downward and drives the wedge block 94 to move leftward. The seventh spring 98 is compressed. After the L-shaped support rod 92 passes over the wedge block 94, the wedge block 94 moves to the right and resets to clamp the L-shaped support rod 92 under the action of the seventh spring 98. At this time, the T-shaped support rod 53 can be pulled to move rightward, thereby driving the sliding frame 52, the second guide rail 95, The connecting block 96 and the sixth spring 97 move to the right. During the movement of the T-shaped support rod 53 to the right, the connecting block 96 also moves downward and resets under the action of the sixth spring 97. At this time, the syringe 3 will slide on the L-shaped support rod 92, and the L-shaped support rod 92 can play a supporting role, so that the syringe 3 is placed more stably. When the effusion is extracted, the sliding frame 52 moves to the left and resets, driving the second guide rail 95, the connecting block 96 and the sixth spring 97 to move to the left. At this time, the connecting block 96 moves to the left and drives the wedge block 94 to move to the left. The seventh spring 98 is compressed, and the wedge block 94 moves to the left and no longer jams the L-shaped support rod 92. Under the action of the fifth spring 93, the L-shaped support rod 92 moves upward and resets, thereby driving the syringe 3 and the connecting block 96 to move upward, and the sixth spring 97 is compressed, so that the syringe 3 can be automatically lifted out of the frame 1, which is convenient for medical staff to take out.

[0041] It also includes a cover plate 10, a handle 11 and a hinge 12. The hinge 12 is symmetrically arranged on the upper left side of the frame 1. The cover plate 10 is rotatably connected between the hinges 12. The handle 11 is welded to the top middle of the cover plate 10.

[0042] When the device is not in use, the cover 10 covers the top of the frame 1, so that the top of the frame 1 is sealed, so that debris can be prevented from falling into the frame 1 and requiring manual cleaning. When it is needed, the medical staff can pull the cover 10 upward through the handle 11 to open the frame 1.

[0043] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art having benefit of this disclosure will appreciate that various other embodiments can be devised without departing from the scope of the present invention. Accordingly, the scope of the present invention should be limited only by the appended claims.

Claims

1. An orthopedic joint effusion extraction device, characterized in that: The invention comprises a frame (1), a gripping rod (2), a syringe (3), a needle (4), a moving assembly (5) and an extraction assembly (6), wherein the frame (1) is provided on the top of the gripping rod (2), the moving assembly (5) is provided on one side of the gripping rod (2), the syringe (3) is placed on the moving assembly (5), the needle (4) is provided on one side of the syringe (3), the needle (4) is slidably matched with the frame (1), and the extraction assembly (6) is provided on the side of the frame (1) away from the needle (4); The moving assembly (5) comprises a first guide rail (51), a sliding frame (52), a T-shaped support rod (53) and a pulling frame (54); the first guide rail (51) is provided in the middle of the top of the gripping rod (2); a sliding frame (52) is slidably provided on one side of the first guide rail (51); a pulling frame (54) is provided at one end of the sliding frame (52); the pulling frame (54) passes through the frame (1) and is slidably connected; and a T-shaped support rod (53) is symmetrically provided on the sliding frame (52); The extraction assembly (6) comprises a placement block (62), a pull rod (63) and a pulling block (64); a pull rod (63) is slidably provided on one side of the frame (1); the pull rod (63) is arranged to pass through one side of the frame (1); one end of the pull rod (63) is provided with a pulling block (64); and the end of the pull rod (63) away from the pulling block (64) is provided with a placement block (62); It also includes a clamping assembly (7), the clamping assembly (7) including a special-shaped connecting rod (71), a first connecting rod (72), a first spring (73) and a clamping block (74), the special-shaped connecting rods (71) are symmetrically slidably provided on both sides of the sliding frame (52), the special-shaped connecting rods (71) are located outside the adjacent T-shaped support rods (53), the first connecting rods (72) are provided in the middle of the special-shaped connecting rods (71), the clamping blocks (74) are provided on the top of the special-shaped connecting rods (71), and the first springs (73) are connected between the special-shaped connecting rods (71) and the sliding frame (52); The present invention also includes a positioning assembly (8), the positioning assembly (8) including a pressure plate (81), a second spring (82), a pressure rod (83), a third spring (84), a pull wire (85), a second connecting rod (86) and a fourth spring (87), a second connecting rod (86) being slidably provided on one side of the pulling frame (54), a fourth spring (87) being connected on both sides between the second connecting rod (86) and the pulling frame (54), a pressure rod (83) being slidably provided on both sides of the sliding frame (52), and the pressure rod (83) ) is located inside the special-shaped connecting rod (71), a third spring (84) is connected between the pressure rod (83) and the sliding frame (52), a wire wheel is symmetrically rotatably provided on one side of the pulling frame (54), a pull wire (85) is connected between the pressure rod (83) and the second connecting rod (86), the pull wire (85) is wound around the corresponding wire wheel, a pressure plate (81) is slidably provided inside the sliding frame (52), and second springs (82) are symmetrically connected between the two sides of the bottom of the pressure plate (81) and the sliding frame (52); The handle (2) further comprises a support assembly (9), wherein the support assembly (9) comprises a third connecting rod (91), an L-shaped supporting rod (92), a fifth spring (93), a wedge block (94), a second guide rail (95), a connecting block (96), a sixth spring (97) and a seventh spring (98); the third connecting rod (91) is symmetrically arranged on one side of the grip rod (2); the L-shaped supporting rod (92) is slidably connected between the third connecting rods (91); and the fifth spring is connected between the L-shaped supporting rod (92) and the third connecting rod (91). (93), a wedge block (94) is symmetrically slidably provided on one side of the top of the grip rod (2), the wedge block (94) is located on one side of the third connecting rod (91), a seventh spring (98) is connected between the wedge block (94) and the grip rod (2), a second guide rail (95) is symmetrically provided on one side of the sliding frame (52) close to the third connecting rod (91), a connecting block (96) is slidably provided in the second guide rail (95), and a sixth spring (97) is connected between the connecting block (96) and the adjacent second guide rail (95).

2. The orthopedic joint effusion extraction device according to claim 1, characterized in that: It also includes a cover plate (10), a handle (11) and a hinge (12), wherein the hinge (12) is symmetrically arranged on one side of the frame (1), the cover plate (10) is rotatably connected between the hinges (12), and the handle (11) is arranged in the middle of the top of the cover plate (10).

3. The orthopedic joint effusion extraction device according to claim 1, characterized in that: An elastic sheet is provided in the middle of the second guide rail (95).

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