Abdominocentesis suite

Abstract

The utility model relates to an abdominal cavity puncture suite, belongs to the field of medical surgical instruments, and provides a double-channel abdominal cavity puncture instrument which is smooth in puncture and small in abdominal wall damage. The suite comprises a cannula assembly and a puncture assembly. The cannula assembly comprises a main sheath tube and a sleeve, and the lower end of the sleeve is necked down and fixedly connected to the upper end of the main sheath tube; the puncture assembly comprises a puncture core which is detachably arranged in the main sheath tube in a sleeved mode. The kit further comprises a separation assembly which comprises a separation strip and a limiting block. The side wall of the main sheath tube is provided with a side through tube communicated with the inside in a forked mode, and the inner wall of the sleeve is provided with a clamping protrusion on one side of the side through tube; a bayonet matched with the clamping bulge is formed in the side surface of the limiting block; the upper end of the parting strip is fixedly connected to the edge of one side, far away from the bayonet, of the lower end of the limiting block; when the limiting block is placed in the sleeve, the main sheathing canal is divided into two channels through the division bar.

Description

Technical Field

[0001] The present application belongs to the technical field of surgical instruments, and in particular relates to a abdominal puncture kit. Background Art

[0002] The abdominal puncture device is a medical device used for laparoscopic surgery to establish a surgical channel in minimally invasive surgery. The surgical operation process is: the abdominal puncture device punctures the patient's abdominal wall into the abdominal cavity, then pulls out the puncture core and leaves the main sheath on the abdominal wall to form a surgical channel. In order to provide more channels during surgery, multi-channel abdominal punctures have appeared in the prior art. For example, patent document CN220370047U discloses a dual-channel abdominal puncture device, including a sleeve, the sleeve includes a sheath at the front end and a sealing cap at the rear end; the sleeve is provided with a first channel and a second channel, and the second channel is provided with an hourglass-shaped electric hook support; when in use, by providing an hourglass-shaped electric hook support in the second channel, the electric hook will move with the narrowest part of the electric hook support as the fulcrum after being inserted into the human abdominal cavity from the second channel, so that the doctor can more easily control the movement trajectory of the electric hook head during manual operation of the electric hook, effectively avoiding shaking during manual operation, and facilitating accurate operation of the affected area. However, when the dual-channel abdominal puncture device is in use, the puncture core used for puncture passes through the first channel (main channel), and the side-by-side second channel will significantly increase the size of the front end of the entire device, which may cause jamming during the puncture of the patient's abdominal wall into the abdominal cavity, and may even increase the patient's abdominal wall damage. Utility Model Content

[0003] The purpose of this application is to provide a abdominal puncture kit, which is a dual-channel abdominal puncture device with smooth puncture and less abdominal wall damage. To this end, this application provides the following technical solutions:

[0004] A abdominal puncture kit comprises a cannula assembly and a puncture assembly; the cannula assembly comprises a main sheath tube and a sleeve, the lower end of the sleeve is tapered downward and coaxially fixedly connected to the upper end of the main sheath tube; the puncture assembly comprises a puncture core, which is detachably sleeved in the main sheath tube and is used to puncture a target position of a patient's abdominal wall, and the improvement thereof is that:

[0005] The abdominal puncture kit also includes a partition component, which includes a partition bar and a limit block; the side wall of the main sheath is forked with a side passage connected to the interior thereof, and the inner wall of the sleeve is provided with a latching protrusion on one side of the side passage; the limit block has a size that blocks half of the opening of the lower end of the sleeve, and a latching slot matching the latching protrusion is opened on its side, and the upper end of the partition bar is fixedly connected to the edge of one side of the lower end of the limit block away from the latching slot; when the limit block is placed in the sleeve, the latching protrusion is latched in the latching slot, and the partition bar separates the main sheath into two channels.

[0006] Compared with the prior art, the present invention achieves at least the following beneficial effects:

[0007] The present application uses a partition component in conjunction with the main sheath of the puncture device to avoid adding an additional channel on the side of the main sheath that does not and cannot be passed by the puncture core, thereby ensuring smooth puncture and further reducing the possibility of abdominal wall injury. In addition, by inserting the partition component after the puncture core is pulled out, the main sheath can be separated into a main channel from the top for the main surgical instruments to pass through, and another side channel from the side passage to the auxiliary instruments, thereby increasing the scope of application of the puncture device. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] One or more embodiments of the present application will now be described, by way of example only, with reference to the accompanying drawings, in which:

[0009] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application (without the partition component inserted);

[0010] Figure 2 This is a partial cross-sectional view of the embodiment of the present application after the partition assembly is inserted;

[0011] Figure 3 This is a schematic diagram of the structure of the sleeve assembly and the puncture assembly after being assembled in an embodiment of the present application;

[0012] Figure 4 This is a schematic diagram of the structure of the puncture assembly of an embodiment of the present application;

[0013] Figure 5 This is a schematic diagram of the structure of the sleeve assembly of the embodiment of the present application.

[0014] Figure 6 This is a schematic diagram of the structure of the partition assembly of an embodiment of the present application.

[0015] The numbers in the figure are: 100, sleeve assembly; 110, main sheath; 111, thread; 120, sleeve; 121, cam; 130, side passage; 140, vent; 150, handle; 200, puncture assembly; 210, puncture core; 220, connecting cap; 230, movable cap; 300, partition assembly; 310, spacer; 320, limit block; 321, bayonet; 330, lifting ear. DETAILED DESCRIPTION

[0016] The present application will be described in detail below with reference to the exemplary embodiments in the accompanying drawings. However, it should be understood that the present application can be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. These embodiments are provided here to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.

[0017] In the description of the present application, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present application.

[0018] like Figure 1 , 3 As shown in , 4 and 5, the abdominal puncture kit of the present application is an improvement made on the basis of a conventional abdominal puncture device, so in the embodiments of the present application, the abdominal puncture kit includes a sleeve assembly 100 and a puncture assembly 200. The sleeve assembly 100 includes a main sheath 110 and a sleeve 120, the lower end of the sleeve 120 is contracted downward and coaxially fixedly connected to the upper end of the main sheath 110; the puncture assembly 200 includes a puncture core 210, which is detachably sleeved in the main sheath 110 and is used to puncture the target position of the patient's abdominal wall. In this way, when in use, the target position of the patient's abdominal wall can be broken through by the puncture action of the puncture core 210, so as to be used for further surgical operations.

[0019] Referring to common abdominal puncture devices, the outer wall of the main sheath 110 of the cannula assembly 100 may be provided with a thread 111 to reduce the damage of the wall and increase the stability of the wall breaking process. The side wall of the sleeve 120 is also provided with a vent 140, and a valve for controlling the opening and closing is provided at the position of the vent 140 to facilitate ventilation control. Moreover, the side wall of the sleeve 120 may be further provided with two side convex handles 150 for easy grip during operation.

[0020] At the same time, referring to the common abdominal puncture device, the puncture assembly 200 includes a connecting cap 220 and a movable cap 230 in addition to the puncture core 210. The front end of the puncture core 210 is generally provided with a blade to facilitate breaking the abdominal wall. The movable cap 230 is connected to the upper end of the puncture core 210, and the connecting cap 220 is connected between the sleeve 120 and the movable cap 230. The connecting cap 220 and the sleeve 120 can be connected by providing a group of protrusions on one side and a socket on the other side to prevent the connecting cap 220 from rotating and shaking at will after plugging. The movable cap 230 is installed on the connecting cap 220, mainly used to control the puncture core 210 to advance downward, so as to break the abdominal wall. The internal structures of the connecting cap 220 and the movable cap 230 are conventional technologies in the field, and this application will not be repeated too much.

[0021] Further references Figure 1 , 2 , 5 and 6, in order to form a double channel, the abdominal puncture kit of the embodiment of the present application also includes a partition assembly 300, which includes a partition bar 310 and a limit block 320; the side wall of the main sheath 110 is forked with a side passage 130 connected to the interior thereof, and the inner wall of the sleeve 120 is provided with a latch 121 on one side of the side passage 130; the limit block 320 has a size that blocks half of the opening of the lower end of the sleeve 120, and a latch 321 matching the latch 121 is opened on its side, and the upper end of the partition bar 310 is fixedly connected to the edge of one side of the lower end of the limit block 320 away from the latch 321; when the limit block 320 is placed in the sleeve 120, the latch 121 is latched in the latch 321, and the partition bar 310 separates the main sheath 110 into two channels.

[0022] In this way, after puncture is performed and the puncture component 200 is pulled out, the partition component 300 can be inserted into the main sheath 110 to form two channels, one of which is directly connected to the top of the main sheath 110, and the other is connected to the side channel 130. When it is specifically applied to laparoscopic ventriculoperitoneal shunt surgery, the straight channel is used to place the operating forceps, and the side channel is used to place the shunt tube into the abdominal cavity.

[0023] Furthermore, the partition assembly 300 further includes a lifting ear 330 , which is fixedly connected to the top of the limiting block 320 to facilitate the insertion of the partition assembly 300 .

[0024] Furthermore, the upper half of the limiting block 320 is semi-cylindrical, and the lower half is in an inverted semi-conical shape, so as to fit into the inner cavity of the sleeve 120 .

[0025] Furthermore, the width of the spacer 310 is equal to the inner diameter of the main sheath tube 110. Moreover, the length of the spacer 310 is greater than half of the total length of the main sheath tube 110 and less than the total length of the main sheath tube 110. In this way, the isolation effect between the two channels can be increased as much as possible.

[0026] It should be understood that all the above embodiments are illustrative rather than restrictive, and various modifications or variations made by those skilled in the art to the specific embodiments described above under the concept of the present application should be within the protection scope of the present application.

Claims

1. An abdominal puncture kit, comprising a sleeve assembly (100) and a puncture assembly (200); the sleeve assembly (100) comprises a main sheath tube (110) and a sleeve (120), the lower end of the sleeve (120) is tapered downward and is coaxially fixedly connected to the upper end of the main sheath tube (110); the puncture assembly (200) comprises a puncture core (210), the puncture core (210) is detachably sleeved in the main sheath tube (110), and is used to puncture a target position of a patient's abdominal wall, characterized in that: The abdominal puncture kit also includes a partition assembly (300), which includes a partition bar (310) and a stop block (320); the side wall of the main sheath tube (110) is bifurcated with a side passage tube (130) connected to the inside thereof, and the inner wall of the sleeve (120) is provided with a clamping protrusion (121) on one side of the side passage tube (130); the stop block (320) has a size that blocks half of the opening of the lower end of the sleeve (120), and its A snap-in slot (321) matching the snap-in protrusion (121) is provided on the side surface, and the upper end of the partition bar (310) is fixedly connected to the edge of the side of the lower end of the limit block (320) away from the snap-in slot (321); when the limit block (320) is placed in the sleeve (120), the snap-in protrusion (121) is snapped into the snap-in slot (321), and the partition bar (310) separates the main sheath tube (110) into two channels.

2. The abdominal puncture kit according to claim 1, characterized in that: The partition assembly (300) further comprises a lifting ear (330), wherein the lifting ear (330) is fixedly connected to the top of the limiting block (320).

3. The abdominal puncture kit according to claim 1, characterized in that: The upper half of the limit block (320) is in the shape of a semi-cylinder, and the lower half is in the shape of an inverted semi-truncated cone.

4. The abdominal puncture kit according to claim 1, characterized in that: The width of the spacer (310) is equal to the inner diameter of the main sheath tube (110).

5. The abdominal puncture kit according to claim 1, characterized in that: The length of the spacer (310) is greater than half of the total length of the main sheath tube (110) and less than the total length of the main sheath tube (110).

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