Nail pushing structure of abdominal cavity puncture device

Abstract

The utility model relates to the technical field of medical tools, in particular to a nail pushing structure of an abdominal cavity puncture device, which comprises a sleeve component and a puncture cone component assembled in the sleeve component, the puncture cone component comprises an outer tube and an inner tube provided with the outer tube in a sliding mode, and the upper end of the inner tube is connected with a nail pushing handle on the upper side of the outer tube. A mounting groove is formed in the upper side of the nail pushing handle, a cap used for sealing the mounting groove is embedded in a groove opening of the mounting groove, the groove bottom of the mounting groove is communicated with the inner pipe through a through hole, buckle holes are formed in the positions, on the two opposite sides of the through hole, of the groove bottom of the mounting groove, and clamping pieces connected with the buckle holes in a buckled mode are arranged on the lower side of the cap; a nail pushing piece is arranged in the inner pipe, and the upper end of the nail pushing piece is connected with the cap through a reset spring. The problem that in the prior art, when the nail pushing structure of the abdominal cavity puncture outfit is used, the connecting position of a spring and a nail pushing handle is prone to loosening is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical tools, in particular to a pin pushing structure of an abdominal puncture device. Background Art

[0002] Laparoscopic surgery has gradually replaced traditional surgery due to its advantages of less trauma, less physiological interference to patients, good cosmetic effect, less pain, and faster recovery. It has been widely used in general surgery, gynecology, and cardiothoracic surgery. Laparoscopic surgery requires opening an incision in the patient's abdomen and performing the surgery under laparoscope observation. Fascia suture is required after the surgery.

[0003] At present, most of the above operations are performed with abdominal puncture devices. For example, the Chinese invention patent with patent application number CN202111344054.6 discloses a push-pin suturing structure for a laparoscopic puncture suturing device, the Chinese invention patent with patent application number CN201480057286.5 for trocar and wound closure device, and the Chinese utility model with application number CN202320262674.3 discloses a fascia suturing puncture device. All of them are based on the original abdominal puncture device, and a mechanism for suturing the wound is added. After the operation is completed, the patient's wound can be quickly sutured, which can achieve rapid suturing of the wound.

[0004] It can be seen from the above patents that the pin pushing mechanism in the abdominal puncture device is mostly reset by a spring, the difference is that the spring installation position is different. Among them, in the Chinese invention patent trocar and wound closure device with patent application number CN201480057286.5, one of the settings is as follows Figure 1 As shown in Figure 26E in the patent specification, it can be seen from the patent specification and the specification drawings that the spring is placed into the tubular cavity of the push rod through the through-hole mounting hole of the push handle, and a cap is provided at the position of the mounting hole, and one end of the spring is hung on the cap to fix the spring and the push handle.

[0005] However, in this arrangement, the cap is small in size, and the fixing strength between the cap and the push-pin handle is weak, resulting in the cap being easily loosened during use, affecting use. Utility Model Content

[0006] The utility model aims to provide a pin pushing structure of an abdominal puncture device, so as to solve the problem in the prior art that the connection between a spring and a pin pushing handle is easily loosened during use of the pin pushing structure of the abdominal puncture device.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A pin pushing structure of an abdominal puncture device includes a sleeve assembly and a puncture cone assembly assembled in the sleeve assembly, the puncture cone assembly includes an outer tube and an inner tube slidably provided with the outer tube, the upper end of the inner tube is connected to a pin pushing handle on the upper side of the outer tube, an installation groove is provided on the upper side of the pin pushing handle, a cap for closing the installation groove is embedded in the groove opening of the installation groove, the groove bottom of the installation groove is connected to the inner tube through a through hole, the groove bottom of the installation groove is provided with snap holes on opposite sides of the through hole, and a card snap-connected to the snap hole is provided on the lower side of the cap; a pin pushing piece is provided in the inner tube, and the upper end of the pin pushing piece is connected to the cap through a reset spring.

[0009] A further technical solution is that a connecting section is vertically arranged at the position of the cap aligned with the through hole, a hanging plate is horizontally arranged at the lower end of the connecting section, and the upper end of the reset spring is connected to the hanging plate.

[0010] A further technical solution is that card strips are protruded from opposite sides of the two cards.

[0011] A further technical solution is that the recess of the installation groove is provided with a positioning hole, and the lower side of the cap is provided with a positioning column matching the positioning hole.

[0012] A further technical solution is that the outer wall of the upper end of the outer tube is sleeved with a main handle, a clamping groove is provided on the upper side of the main handle, the bottom of the clamping groove is connected to the upper end of the outer tube, and the lower side of the nail pushing handle is clamped in the clamping groove.

[0013] A further technical solution is that a mounting hole passing through both sides is provided near the lower end of the nail pushing member, a nail pushing rod in an inverted "U" shape is installed in the mounting hole, a plug hole is provided above the mounting hole of the nail pushing member, and an elastic clamping plate is obliquely provided at the upper end of the nail pushing member; first long strip notches for moving the nail pushing rod are provided on opposite sides of the inner tube, second long strip notches aligned with the first long strip notches are provided on opposite sides of the outer tube, a first clamping hole connected to the elastic clamping plate buckle is provided above the second long strip notch of the inner tube, a second clamping hole connected to the elastic clamping plate buckle is provided near the lower end of the inner tube, the lower hole wall of the second clamping hole is connected to the lower end of the inner tube, a pin is detachably installed in the plug hole, and the ends of the pin are placed in the first long strip notch and the second long strip notch.

[0014] A further technical solution is that a top block aligned with the second clamping hole is provided on the inner wall of the outer tube near the bottom.

[0015] Compared with the prior art, the utility model has at least one of the following beneficial effects: 1. By setting the buckle hole and the card plate, the connection of the cap can be more stable when it is installed on the push nail handle, and the elastic potential energy generated by the stretching or rebound of the spring during use will not easily cause the cap to move; 2. By setting the installation groove, the groove wall of the installation groove can be used to fit the edge of the cap, so that the cap can be embedded in the installation groove, further improving the stability of the cap installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The following is a prior art drawing of the background technology.

[0017] Figure 2 The utility model is a schematic diagram of an abdominal puncture device with a pin-pushing structure.

[0018] Figure 3 It is an overall schematic diagram of a puncture cone assembly of a pin-pushing structure of an abdominal puncture device of the utility model.

[0019] Figure 4 The utility model is a partial cross-sectional schematic diagram of a puncture cone component of a pin-pushing structure of an abdominal puncture device.

[0020] Figure 5 The utility model is a schematic diagram of the interior of a puncture cone assembly of a pin-pushing structure of an abdominal puncture device.

[0021] Figure 6 The utility model is a schematic diagram of a cap cover of a pin pushing structure of a abdominal puncture device.

[0022] Figure 7 The utility model is a schematic diagram of an outer tube and a nail pushing handle of a nail pushing structure of a abdominal puncture device.

[0023] Icon: 1-sleeve assembly, 2-puncture cone assembly, 3-outer tube, 4-inner tube, 5-nail pusher handle, 6-mounting slot, 7-cap, 8-through hole, 9-buckle hole, 10-card, 11-nail pusher, 12-reset spring, 13-connecting section, 14-hanging plate, 15-card strip, 16-positioning hole, 17-positioning column, 18-main handle, 19-card slot, 20-mounting hole, 21-nail pusher rod, 22-insertion hole, 23-elastic card plate, 24-first long strip notch, 25-second long strip notch, 26-first card hole, 27-second card hole, 28-pin, 29-sleeve, 30-housing. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] Figures 2 to 7 Shown is an embodiment of the utility model.

[0026] Embodiment 1:

[0027] A pin pushing structure of an abdominal puncture device includes a sleeve assembly 1 and a puncture cone assembly 2 assembled in the sleeve assembly 1, the puncture cone assembly 2 includes an outer tube 3 and an inner tube 4 slidably provided with the outer tube 3, the upper end of the inner tube 4 is connected with a pin pushing handle 5 on the upper side of the outer tube 3, the upper side of the pin pushing handle 5 is provided with a mounting groove 6, the notch of the mounting groove 6 is fitted with a cap 7 for closing the mounting groove 6, the bottom of the mounting groove 6 is connected with the inner tube 4 through a through hole 8, the bottom of the mounting groove 6 is provided with snap holes 9 on opposite sides of the through hole 8, and the lower side of the cap 7 is provided with a card 10 snap-connected with the snap hole 9; a pin pushing piece 11 is provided in the inner tube 4, and the upper end of the pin pushing piece 11 is connected with the cap 7 through a reset spring 12. By providing the buckle hole 9 and the card plate, the cap 7 can be more stably connected when it is installed on the push nail handle 5, and the elastic potential energy generated by the stretching or rebounding of the spring during use will not easily cause the cap 7 to move. By providing the installation groove 6, the groove wall of the installation groove 6 can be used to fit the edge of the cap 7, so that the cap 7 can be embedded and installed in the installation groove 6, further improving the stability of the installation of the cap 7.

[0028] The cap 7 is vertically provided with a connecting section 13 at a position aligned with the through hole 8, and a hanging plate 14 is horizontally provided at the lower end of the connecting section 13, and the upper end of the reset spring 12 is connected to the hanging plate 14. Such a setting can form a good fixed position of the reset spring 12 by means of the cooperation of the hanging plate 14 and the connecting section 13, thereby connecting the reset spring 12 and the cap 7 together. The reset spring 12 can be directly hung on the hanging plate 14 by a hook or a hanging ring.

[0029] The two cards 10 are provided with a protruding clip 15 on one side opposite to the other. The clip 15 is provided to improve the stability of the connection between the card 10 and the buckle hole 9. After the card 10 is inserted into the buckle hole 9, the lower end of the card 10 is placed below the buckle hole 9, and the clip 15 is in contact with the hole of the buckle hole 9 at the lower side of the buckle hole 9, so that the card 10 cannot be easily moved out of the buckle hole 9.

[0030] The recess of the mounting groove 6 is provided with a positioning hole 16, and the lower side of the cap 7 is provided with a positioning column 17 matching the positioning hole 16. By providing the positioning hole 16 and the positioning column 17, the stability of the cap 7 after being installed in the mounting groove 6 is further improved.

[0031] The outer wall of the upper end of the outer tube 3 is sleeved with a main handle 18, and a clamping groove 19 is provided on the upper side of the main handle 18. The bottom of the clamping groove 19 is connected to the upper end of the outer tube 3, and the lower side of the nail pushing handle 5 is clamped in the clamping groove 19. By providing the main handle 18, when the nail pushing handle 5 is not in use, the main handle 18 can be used to drive the entire puncture cone assembly 2 to move and perform the puncture operation.

[0032] A mounting hole 20 passing through both sides is provided near the lower end of the push nail member 11, and a push nail rod 21 in an inverted "U" shape is installed in the mounting hole 20. A plug hole 22 is provided above the mounting hole 20 of the push nail member 11, and an elastic clamping plate 23 is obliquely provided at the upper end of the push nail member 11; first long strip notches 24 for moving the push nail rod 21 are provided on opposite sides of the inner tube 4, and second long strip notches 25 aligned with the first long strip notches 24 are provided on opposite sides of the outer tube 3. A first clamping hole 26 connected to the elastic clamping plate 23 is provided above the second long strip notch 25 of the inner tube 4, and a second clamping hole 27 connected to the elastic clamping plate 23 is provided near the lower end of the inner tube 4. The lower hole wall of the second clamping hole 27 is connected to the lower end of the inner tube 4, and a latch 28 is detachably installed in the plug hole 22, and the ends of the latch 28 are placed in the first long strip notch 24 and the second long strip notch 25. The sleeve assembly 1 includes a sleeve 29, a connecting tube and a shell 30. The connecting tube is installed at the upper end of the sleeve 29, and the shell 30 is covered on the upper part of the connecting tube. The upper side of the shell 30 is provided with an insertion hole aligned with the connecting tube. Suture nails are provided on both sides of the inner wall of the lower end of the sleeve 29. A rivet groove for fixing the suture nail is provided on the inner wall of the sleeve 29. When the wound is not sutured, the suture nail is fixed in the rivet groove. Before pushing the nail, the push nail handle 5 is fitted and clamped in the card slot 19. When the suture nail in the sleeve 29 needs to be pushed out, the push nail handle 5 is held and pulled out upward. During the pulling out process, due to the action of the latch 28, the push nail member 11 will not move. When the push nail handle 5 moves, it will drive the inner tube 4 to move upward. When the inner tube 4 moves, the upper end of the elastic clamp 23 originally stuck in the first clamp hole 26 will be squeezed back into the inner tube 4 by the hole wall of the first clamp hole 26. When the second clamp hole 27 of the inner tube 4 moves to the position of the elastic clamp 23, the elastic clamp 23 extends into the second clamp hole 27 and contacts the hole wall of the second clamp hole 27. At this time, the front half before the push pin has been completed, and the reset spring 12 is in a stretched state. Then, by pushing the push pin handle 5 toward the main handle 18, during the movement, the inner tube 4 will move against the push pin 11, which will drive the push rod to move toward the tube mouth of the sleeve 29. During the movement, the suture pin installed on the inner wall of the sleeve 29 will be pushed out and enter the patient's body, completing the push pin step. The first long notch 24 and the second long notch 25 enable the push rod to move smoothly and contact the suture pin.

[0033] The inner wall of the outer tube 3 is provided with a top block aligned with the second clamping hole 27 near the bottom. By providing the top block, after the suture nail is pushed, the top block and the elastic clamping plate 23 placed in the second clamping hole 27 are in contact and fit, and the elastic clamping plate 23 is pushed back into the inner tube 4 again, and then the nail pushing member 11 is driven to return to the initial position by the return spring 12.

[0034] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to the modifications and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A pin-pushing structure of an abdominal puncture device, comprising a sleeve assembly (1) and a puncture cone assembly (2) assembled in the sleeve assembly (1), characterized in that: The puncture cone assembly (2) comprises an outer tube (3) and an inner tube (4) on which the outer tube (3) is slidably arranged. The upper end of the inner tube (4) is connected to a pin push handle (5) on the upper side of the outer tube (3). The upper side of the pin push handle (5) is provided with a mounting groove (6). A cap (7) for closing the mounting groove (6) is provided in a notch of the mounting groove (6). The bottom of the mounting groove (6) is connected to the inner tube (4) via a through hole (8). The bottom of the mounting groove (6) is provided with snap holes (9) on opposite sides of the through hole (8). A card (10) snap-connected to the snap hole (9) is provided on the lower side of the cap (7). A pin push piece (11) is provided in the inner tube (4). The upper end of the pin push piece (11) is connected to the cap (7) via a return spring (12).

2. The pin pushing structure of the abdominal puncture device according to claim 1, characterized in that: The cap (7) is vertically provided with a connecting section (13) at a position aligned with the through hole (8), a hanging plate (14) is horizontally provided at the lower end of the connecting section (13), and the upper end of the return spring (12) is connected to the hanging plate (14).

3. The pin pushing structure of the abdominal puncture device according to claim 1, characterized in that: A card strip (15) is protruded and provided on opposite sides of the two cards (10).

4. The pin pushing structure of the abdominal puncture device according to claim 1, characterized in that: The recess of the installation groove (6) is provided with a positioning hole (16), and the lower side of the cap (7) is provided with a positioning column (17) matching the positioning hole (16).

5. The pin pushing structure of the abdominal puncture device according to claim 1, characterized in that: The outer wall of the upper end of the outer tube (3) is sleeved with a main handle (18), and a clamping groove (19) is provided on the upper side of the main handle (18). The bottom of the clamping groove (19) is connected to the upper end of the outer tube (3), and the lower side of the nail pushing handle (5) is clamped in the clamping groove (19).

6. The pin pushing structure of the abdominal puncture device according to claim 1, characterized in that: A mounting hole (20) passing through both sides is provided near the lower end of the nail pushing member (11), an inverted "U"-shaped nail pushing rod (21) is installed in the mounting hole (20), a plug hole (22) is provided above the mounting hole (20) of the nail pushing member (11), and an elastic clamping plate (23) is obliquely provided at the upper end of the nail pushing member (11); first long strip notches (24) for moving the nail pushing rod (21) are provided on opposite sides of the inner tube (4), and first long strip notches (24) aligned with the first long strip notches (24) are provided on opposite sides of the outer tube (3). The inner tube (4) is provided with a second long notch (25) above the second long notch (25), a first clamping hole (26) connected to the elastic clamping plate (23) by a clamping buckle is provided, the inner tube (4) is provided with a second clamping hole (27) connected to the elastic clamping plate (23) by a clamping buckle at a position close to the lower end, the lower hole wall of the second clamping hole (27) is connected to the lower end of the inner tube (4), a plug (28) is detachably installed in the insertion hole (22), and the ends of the plug (28) are placed in the first long notch (24) and the second long notch (25).

7. The pin pushing structure of the abdominal puncture device according to claim 6, characterized in that: The inner wall of the outer tube (3) is provided with a top block aligned with the second clamping hole (27) at a position close to the bottom.

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