Gynecological pelvic cyst fluid suction device

Abstract

The utility model relates to the technical field of medical instruments, in particular to a gynecological pelvic cyst fluid suction device which comprises an injector, a base, a driving mechanism, a catheter, a connecting mechanism and a puncture needle, a connector used for being connected with one end of the catheter is arranged at the front end of an injection cylinder, and the other end of the catheter is connected with one end of the connecting mechanism. The other end of the connecting mechanism is connected with a puncture needle, a driving cavity used for containing a driving mechanism is formed in the bottom of the base, a lug groove used for insertion of the fixing lug is formed in the rear end of the containing groove, a sliding groove used for movement of the piston handle is formed in the rear side of the lug groove, and the bottom of the sliding groove is communicated with the driving cavity. The piston handle is driven by a driving mechanism to reciprocate along the sliding groove. The driving mechanism is connected with the piston handle and drives the piston handle to move in the axial direction of the injector, and the connector of the injector is communicated with the puncture needle through the catheter, so that cyst fluid in the cyst can be automatically sucked.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a gynecological pelvic cyst fluid suction device. Background Art

[0002] Common pelvic cysts are more common in ovarian tumors and can occur at all ages, but the histological types of the tumors will be different. After the puncture of the cyst, the cystic fluid in the cyst needs to be extracted. Currently, after the puncture is completed, the doctor usually manually aspirates the cystic fluid in the cyst with a syringe. Since the cystic fluid in most cysts is usually viscous, it is difficult to aspirate, and usually the part of the cystic fluid that has just been extracted needs to be sent to the laboratory for testing.

[0003] Based on the above reasons, the utility model provides a gynecological pelvic cyst fluid suction device. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provides a gynecological pelvic cyst fluid suction device. By placing the syringe in a placement groove on a base, the radial direction of the syringe can be limited, and by inserting a fixing ear into the ear groove, the axial direction of the syringe can be limited; the drive mechanism is connected to the piston handle and drives it to move along the axial direction of the syringe, and the connecting head of the syringe is connected to the puncture needle through a catheter. When the puncture needle punctures the cyst, automatic suction of the internal liquid can be achieved.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is as follows: the utility model discloses a gynecological pelvic cyst fluid suction device, including a syringe, a base, a driving mechanism, a catheter, a connecting mechanism and a puncture needle, the syringe includes a syringe barrel, a piston, a piston rod, a piston handle, a connecting head and a fixing ear, the syringe barrel is a hollow cylindrical structure with an opening at the rear end, the front end of the syringe barrel is provided with a connecting head for connecting to one end of the catheter, the other end of the catheter is connected to one end of the connecting mechanism, and the other end of the connecting mechanism is connected to the puncture needle; the outer wall of the piston is connected to the inner wall of the syringe barrel Cooperating with sliding, the rear end of the piston is connected to the front end of the piston rod, the rear end of the piston rod is connected to the front end of the piston handle, and the outer edge of the rear end of the syringe is provided with the fixing ear; the base is a square structure, and its bottom forms a driving cavity for placing the driving mechanism, a semicircular placement groove for placing the syringe is provided in the middle of the front end of the top of the base, an ear groove for inserting the fixing ear is provided at the rear end of the placement groove, and a sliding groove for the movement of the piston handle is provided on the rear side of the ear groove, the bottom of the sliding groove is connected to the driving cavity, and the piston handle is driven by the driving mechanism to reciprocate along the sliding groove.

[0006] Furthermore, the connecting mechanism includes a main connecting tube and a side connecting tube, one end of the main connecting tube is connected to the catheter, and the other end of the main connecting tube is connected to one end of the puncture needle, and the other end of the puncture needle is a sharp end; the inner end of the side connecting tube is connected to the outer wall of the main connecting tube, and the outer end of the side connecting tube is provided with an end cap.

[0007] The side connecting pipe and the main connecting pipe form an angle of approximately 45°.

[0008] The inner diameter of the placement groove is equal to the outer diameter of the injection barrel; the fixing ear is roughly in an elliptical structure, and the length of its major axis is greater than the outer diameter of the injection barrel.

[0009] The driving mechanism includes a driving motor, a screw, a bearing seat, a driving block and a connecting block. The driving motor is fixed to the front side of the driving cavity, the bearing seat is provided on the rear side of the driving motor, the middle part of the rear wall of the bearing seat is provided with a bearing for sleeved on the front end of the screw, the inner cavity rear wall of the driving cavity is provided with a bearing for sleeved on the rear end of the screw, the output end of the driving motor passes through the bearing seat and is connected to the front end of the screw; the middle part of the driving block is provided with a threaded hole that matches and engages with the external thread on the outer wall of the screw, and the top of the driving block is provided with a connecting block for connecting to the piston handle.

[0010] Guide rods are arranged between the two sides of the rear wall of the bearing seat and the two sides of the inner cavity rear wall of the driving cavity, and guide holes for the guide rods to pass through are arranged on both sides of the driving block.

[0011] The connecting block is in a square structure, and an insertion groove for inserting the bottom end of the piston handle is provided on the top of the connecting block, and a piston handle groove for inserting the piston handle is provided on the top of the front end of the insertion groove.

[0012] Limiting mechanisms are provided on both sides of the front end of the base, and the limiting mechanism includes a fixed seat, a telescopic rod, a clamping block, a compression spring and a shifting block. The front end of the telescopic rod is connected to the shifting block, and the rear end of the telescopic rod is connected to the clamping block, and the outer diameter of the clamping block is larger than the outer diameter of the telescopic rod; the fixed seat is a cylindrical structure fixed on both sides of the front end top of the base, and the axial front end of the fixed seat is provided with a telescopic groove for sliding of the telescopic rod, and the axial rear end of the fixed seat is provided with a clamping groove for sliding of the clamping block, and the clamping groove is communicated with the telescopic groove, and a compression spring sleeved on the outside of the telescopic rod is provided between the front end of the clamping groove and the front wall of the clamping block; the rear end bottom of the clamping block is provided with a limiting groove that is engaged with the top of the outer wall of the injection barrel.

[0013] Limiting rods are arranged on both sides of the middle part of the telescopic rod, and limiting sliding grooves for sliding of the limiting rods are arranged on both sides of the front end of the fixing seat.

[0014] The beneficial effects of the utility model are:

[0015] (1) The utility model can limit the radial position of the syringe by placing the syringe barrel in the placement groove on the base, and can limit the axial position of the syringe by inserting the fixing ear into the ear groove; the driving mechanism is connected to the piston handle and drives it to move along the axial direction of the syringe, and the connecting head of the syringe is connected to the puncture needle through the catheter. When the puncture needle punctures the cyst, the liquid inside the cyst can be automatically sucked out. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a partial structural cross-sectional schematic diagram of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the limiting mechanism in the utility model;

[0019] Figure 4 It is a cross-sectional schematic diagram of the limiting mechanism in the utility model;

[0020] Figure 5 This is a usage state diagram of the utility model.

[0021] In the figure: 1 syringe, 2 base, 3 driving mechanism, 4 catheter, 5 limiting mechanism, 6 connecting mechanism, 7 puncture needle, 11 syringe, 12 piston, 13 piston rod, 14 piston handle, 15 connector, 16 fixing ear, 21 placement groove, 22 ear groove, 23 slide groove, 24 driving cavity, 31 driving motor, 32 screw rod, 33 bearing seat, 34 driving block, 35 connecting block, 36 guide rod, 37 insertion groove, 51 fixing seat, 52 telescopic rod, 53 clamping block, 54 compression spring, 55 shifting block, 56 telescopic groove, 57 clamping groove, 58 limiting groove, 59 limiting rod, 60 limiting slide groove, 61 main connecting pipe, 62 side connecting pipe, 63 end cover. DETAILED DESCRIPTION

[0022] The utility model is further described below:

[0023] See also Figure 1-5 ,

[0024] The utility model discloses a gynecological pelvic cyst fluid suction device, comprising a syringe 1, a base 2, a driving mechanism 3, a catheter 4, a connecting mechanism 6 and a puncture needle 7, wherein the syringe 1 comprises a syringe barrel 11, a piston 12, a piston rod 13, a piston handle 14, a connecting head 15 and a fixing ear 16, wherein the syringe barrel 11 is a hollow cylindrical structure with an opening at the rear end, the front end of the syringe barrel 11 is provided with a connecting head 15 for connecting with one end of the catheter 4, the other end of the catheter 4 is connected to one end of the connecting mechanism 6, and the other end of the connecting mechanism 6 is connected to the puncture needle 7. The outer wall of the piston 12 slides with the inner wall of the syringe 11, the rear end of the piston 12 is connected to the front end of the piston rod 13, the rear end of the piston rod 13 is connected to the front end of the piston handle 14, and the outer edge of the rear end of the syringe 11 is provided with the fixing ear 16; the base 2 is a square structure, and a driving cavity 24 for placing the driving mechanism 3 is formed at its bottom, and a semicircular placement groove 21 for placing the syringe 11 is provided in the middle of the front end of the top of the base 2, and the rear end of the placement groove 21 is provided with an ear groove for inserting the fixing ear 16 22, a slide groove 23 for the movement of the piston handle 14 is provided on the rear side of the ear groove 22, the bottom of the slide groove 23 is communicated with the driving cavity 24, and the piston handle 14 is driven by the driving mechanism 3 to reciprocate along the slide groove 23. In this case, when the puncture needle 7 completes the puncture of the cyst, the radial direction of the syringe 1 can be limited by placing the injection barrel 11 in the placement groove 21 on the base 2, and the axial direction of the syringe 1 can be limited by inserting the fixing ear 16 into the ear groove 22; it is connected to the piston handle 14 through the driving mechanism 3 and drives it to reciprocate along the syringe 1 It moves axially, and the connector 15 of the syringe 1 is connected to the puncture needle through the catheter 4. When the puncture needle punctures the cyst, the internal liquid can be automatically sucked out. The cyst fluid automatically enters the syringe 1 through the puncture needle 7, the connecting mechanism 6 and the catheter 4, which reduces the workload of medical staff and enables them to better pay attention to the condition of the cyst on the ultrasound display when drawing the cyst fluid. It is also very convenient to install and disassemble. When the first syringe 1 is full of cyst fluid, it can be removed and sent to the laboratory for testing, and then a new syringe can be installed to continue drawing the cyst fluid.

[0025] Furthermore, the connecting mechanism 6 includes a main connecting tube 61 and a side connecting tube 62, one end of the main connecting tube 61 is connected to the catheter 4, and the other end of the main connecting tube 61 is connected to one end of the puncture needle 7, and the other end of the puncture needle 7 is a sharp end; the inner end of the side connecting tube 62 is connected to the outer wall of the main connecting tube 61, and the outer end of the side connecting tube 62 is provided with an end cap 63, and the catheter 4 is connected to the puncture needle 7 through the main connecting tube 61. When the puncture needle 7 completes the puncture under ultrasound guidance, the driving mechanism 3 is turned on to pass through The syringe 1 is used to aspirate the cystic fluid in the cyst; if the cystic fluid is relatively viscous and aspiration is difficult, the end cap 63 on the side connecting tube 62 can be opened and connected to the cleaning syringe. The cleaning syringe is filled with physiological saline, which can be slightly diluted after being injected into the cyst for better aspiration; in addition, after the cystic fluid is aspirated, a new cleaning syringe needs to be connected through the side connecting tube 62, and a hardener is filled in the cleaning syringe. The hardener can cause the cyst wall cells to dehydrate, necrotize, and adhere, and the cyst wall to close, thereby achieving the purpose of healing.

[0026] Furthermore, the side connecting tube 62 and the main connecting tube 61 form an angle of approximately 45°, which is beneficial for the physiological saline in the cleaning syringe to pass through the main connecting tube 61 and the puncture needle 7 more smoothly after the side connecting tube 62 is connected to the cleaning syringe.

[0027] Furthermore, the inner diameter of the placement groove 21 is equal to the outer diameter of the injection barrel 11, so that the two are more matched and no lateral movement occurs; the fixing ear 16 is roughly elliptical in structure, and the length of its major axis is greater than the outer diameter of the injection barrel 11. By inserting the fixing ear 16 into the ear groove 22, the axial limit fixation of the injection barrel 11 can be achieved.

[0028] Furthermore, the driving mechanism 3 includes a driving motor 31, a screw rod 32, a bearing seat 33, a driving block 34 and a connecting block 35. The driving motor 31 is fixed to the front side of the driving cavity 24, and the bearing seat 33 is provided on the rear side of the driving motor 31. The middle part of the rear wall of the bearing seat 33 is provided with a bearing for sleeve-fitting the front end of the screw rod 32. The inner cavity rear wall of the driving cavity 24 is provided with a bearing for sleeve-fitting the rear end of the screw rod 32. The output end of the driving motor 31 passes through the bearing seat 33 and is connected to the front end of the screw rod 32; the middle part of the driving block 34 is provided with a threaded hole that matches and engages with the external thread on the outer wall of the screw rod 32; the top of the driving block 34 is provided with a connecting block 35 for connecting to the piston handle 14, and the position of the bearing seat 33 only needs to be in the ear groove 22 The front of the piston 12 can ensure that the piston 12 can slide to the front end of the inner cavity of the syringe 11; and by arranging the drive motor 31 in front of the bearing seat 33, the space of the drive cavity 24 can be fully utilized; the specific working process: turn on the drive motor 31 to drive the screw rod 32 to rotate. Since the connecting block 35 at the top of the drive block 34 is connected to the piston handle 14, the drive block 34 cannot move circumferentially. Since the threaded hole in the middle of the drive block 34 is engaged with the screw rod 32, the drive block can be moved along the axial direction of the screw rod 32, driving the piston handle 14 to move in the direction away from the syringe 11, thereby realizing the syringe 1 to attract the liquid in the cyst. Preferably, a button can be provided on the base 2 to be electrically connected to the drive motor 31, so as to facilitate the opening and closing, forward and reverse rotation of the drive motor 31.

[0029] Furthermore, guide rods 36 are provided between the two sides of the rear wall of the bearing seat 33 and the two sides of the rear wall of the inner cavity of the driving cavity 24, and guide holes for the guide rods 36 to pass through are provided on both sides of the driving block 34, so that the movement of the driving block 34 and the connecting block 35 is more stable and accidental flipping will not occur.

[0030] Furthermore, the connecting block 35 has a square structure, and an insertion groove 37 is provided on the top thereof for inserting the bottom end of the piston handle 14, and a piston handle groove is provided on the top of the front end of the insertion groove 37 for inserting the piston handle 13. Through the connection method of the insertion groove 37, the driving mechanism 3 can drive the piston handle 14 to move while facilitating the installation and disassembly of the syringe 1.

[0031] Furthermore, limiting mechanisms 5 are provided on both sides of the front end of the base 2, and the limiting mechanisms 5 include a fixed seat 51, a telescopic rod 52, a clamping block 53, a compression spring 54 and a shifting block 55. The front end of the telescopic rod 52 is connected to the shifting block 55, and the rear end of the telescopic rod 52 is connected to the clamping block 53. The outer diameter of the clamping block 53 is larger than the outer diameter of the telescopic rod 52. The fixed seat 51 is a cylindrical structure fixed to both sides of the top of the front end of the base 2, and the axial front end of the fixed seat 51 is provided with a telescopic groove 56 for sliding of the telescopic rod 52, and the axial rear end of the fixed seat 51 is provided with a clamping groove 57 for sliding of the clamping block 53, and the clamping groove 57 is communicated with the telescopic groove 56. A compression spring 54 is provided between the front end of the clamping groove 57 and the front wall of the clamping block 53, which is sleeved on the outside of the telescopic rod 52. 4; A limiting groove 58 is provided at the bottom of the rear end of the clamping block 53, which is engaged with the top of the outer wall of the syringe 11. By setting the limiting mechanism 5, the vertical direction of the syringe 1 can be limited to avoid the syringe 1 accidentally detaching from the placement groove 21 during use, thereby affecting the normal operation of the liquid aspiration device; specific working process: when the medical staff needs to place the syringe 1 in the placement groove 21, the rear end of the clamping block 53 can be pushed into the clamping groove 57 with the outer wall of the syringe 11, and then it can be placed in the placement groove 21; and when the clamping block 53 slides into the clamping groove 57, the compression spring 54 can be compressed. When the syringe 11 is placed, due to the reset effect of the compression spring 54, the bottom limiting groove 58 at the rear end of the clamping block 53 can be engaged with the outer wall of the syringe 11 to limit the syringe 1 in the vertical direction.

[0032] Furthermore, limiting rods 59 are provided on both sides of the middle of the telescopic rod 52, and limiting grooves 60 for sliding the limiting rod 59 are provided on both sides of the front end of the fixing seat 51. When the medical staff moves the dial block 55 outward to drive the telescopic rod 52 to move outward, the clamping block 53 moves outward with it and retracts into the clamping groove 57. When the limiting rod 59 moves to the outer end of the limiting groove 60, the medical staff can rotate the dial block 55 to make the outer end of the limiting rod 59 press against the front end surface of the fixing seat 51, instead of inserting the limiting block 55. The clamping block 53 is retracted into the clamping groove 57, and the state of the clamping block 53 being retracted into the clamping groove 57 can be limited, so that the medical staff can more conveniently place the syringe 1 in the placement groove 21 of the base 2; after placing the syringe 1, the medical staff rotates the same angle in the opposite direction, so that the limiting rod 59 is inserted into the limiting groove 60. Due to the reset effect of the compression spring 54, the limiting groove 58 at the rear end of the clamping block 53 can limit the outer wall of the injection barrel 11, and the limiting groove 60 can also play a positioning role.

[0033] The above description is only an embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent transformation made by using the contents of the specification and drawings of the present utility model or directly or indirectly applied in the relevant technical field is also included in the patent protection scope of the present utility model.

Claims

1. A gynecological pelvic cyst fluid suction device, characterized in that: It comprises a syringe (1), a base (2), a driving mechanism (3), a catheter (4), a connecting mechanism (6) and a puncture needle (7), The syringe (1) comprises a syringe barrel (11), a piston (12), a piston rod (13), a piston handle (14), a connector (15) and a fixing ear (16); the syringe barrel (11) is a hollow cylindrical structure with an open rear end; the front end of the syringe barrel (11) is provided with a connector (15) for connecting to one end of a catheter (4); the other end of the catheter (4) is connected to one end of the connecting mechanism (6); the other end of the connecting mechanism (6) is connected to the puncture needle (7); the outer wall of the piston (12) slides in cooperation with the inner wall of the syringe barrel (11); the rear end of the piston (12) is connected to the front end of the piston rod (13); the rear end of the piston rod (13) is connected to the front end of the piston handle (14); the fixing ear (16) is provided on the outer edge of the rear end of the syringe barrel (11); The base (2) has a square structure, and a driving cavity (24) for accommodating the driving mechanism (3) is formed at its bottom. A semicircular placement groove (21) for accommodating the injection cylinder (11) is provided in the middle of the front end of the top of the base (2). An ear groove (22) for inserting the fixing ear (16) is provided at the rear end of the placement groove (21). A slide groove (23) for the movement of the piston handle (14) is provided at the rear side of the ear groove (22). The bottom of the slide groove (23) is communicated with the driving cavity (24). The piston handle (14) is driven by the driving mechanism (3) to reciprocate along the slide groove (23).

2. The gynecological pelvic cyst fluid suction device according to claim 1, characterized in that: The connecting mechanism (6) comprises a main connecting tube (61) and a side connecting tube (62); one end of the main connecting tube (61) is connected to the catheter (4); the other end of the main connecting tube (61) is connected to one end of the puncture needle (7); the other end of the puncture needle (7) is a sharp end; the inner end of the side connecting tube (62) is in communication with the outer wall of the main connecting tube (61); the outer end of the side connecting tube (62) is provided with an end cap (63).

3. A gynecological pelvic cyst fluid suction device according to claim 2, characterized in that: The side connecting pipe (62) and the main connecting pipe (61) form an angle of approximately 45°.

4. A gynecological pelvic cyst fluid suction device according to claim 1, characterized in that: The inner diameter of the placement groove (21) is equal to the outer diameter of the injection barrel (11); the fixing ear (16) is generally in an elliptical structure, and the length of its major axis is greater than the outer diameter of the injection barrel (11).

5. A gynecological pelvic cyst fluid suction device according to claim 4, characterized in that: The driving mechanism (3) comprises a driving motor (31), a screw rod (32), a bearing seat (33), a driving block (34) and a connecting block (35); the driving motor (31) is fixed to the front side of the driving cavity (24); the bearing seat (33) is provided on the rear side of the driving motor (31); a bearing for sleeve-engaging the front end of the screw rod (32) is provided in the middle of the rear wall of the bearing seat (33); a bearing for sleeve-engaging the rear end of the screw rod (32) is provided on the rear wall of the inner cavity of the driving cavity (24); the output end of the driving motor (31) passes through the bearing seat (33) and is connected to the front end of the screw rod (32); a threaded hole is provided in the middle of the driving block (34) and is matched and meshed with the external thread on the outer wall of the screw rod (32); and a connecting block (35) for connecting to the piston handle (14) is provided at the top of the driving block (34).

6. A gynecological pelvic cyst fluid suction device according to claim 5, characterized in that: Guide rods (36) are provided between the two sides of the rear wall of the bearing seat (33) and the two sides of the inner cavity rear wall of the driving cavity (24), and guide holes for the guide rods (36) to pass through are provided on both sides of the driving block (34).

7. A gynecological pelvic cyst fluid suction device according to claim 6, characterized in that: The connecting block (35) is in a square structure, and an insertion groove (37) is provided at the top thereof for inserting the bottom end of the piston handle (14), and a piston handle groove is provided at the top of the front end of the insertion groove (37) for inserting the piston handle (14).

8. A gynecological pelvic cyst fluid suction device according to claim 1, characterized in that: Limiting mechanisms (5) are provided on both sides of the front end of the base (2), the limiting mechanisms (5) comprising a fixing seat (51), a telescopic rod (52), a clamping block (53), a compression spring (54) and a shifting block (55), the front end of the telescopic rod (52) being connected to the shifting block (55), the rear end of the telescopic rod (52) being connected to the clamping block (53), the outer diameter of the clamping block (53) being larger than the outer diameter of the telescopic rod (52); the fixing seat (51) is a cylindrical structure fixed on both sides of the top of the front end of the base (2), the fixing seat The axial front end of the fixing seat (51) is provided with a telescopic groove (56) for the telescopic rod (52) to slide, and the axial rear end of the fixing seat (51) is provided with a clamping groove (57) for the clamping block (53) to slide, the clamping groove (57) is communicated with the telescopic groove (56), and a compression spring (54) sleeved on the outside of the telescopic rod (52) is provided between the front end of the clamping groove (57) and the front wall of the clamping block (53); the rear end bottom of the clamping block (53) is provided with a limiting groove (58) that is engaged with the top of the outer wall of the injection cylinder (11).

9. A gynecological pelvic cyst fluid suction device according to claim 8, characterized in that: Limiting rods (59) are provided on both sides of the middle of the telescopic rod (52), and limiting sliding grooves (60) for sliding of the limiting rods (59) are provided on both sides of the front end of the fixing seat (51).

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