Laparoscope trocar with protecting, fixing and filtering device

Abstract

The utility model discloses a trocar with a protecting device, a fixing device and a filtering device for a laparoscope. The trocar comprises an inner core and a sleeve assembly. The sleeve assembly comprises an outer-layer pipe, an inner-layer pipe and a base, the inner-layer pipe is fixedly connected to the center of the base, and the outer-layer pipe is arranged on the outer side of the inner-layer pipe in a sleeving mode and connected with the base through an annular spring; the inner core is inserted into the base and the inner-layer pipe; wherein an annular suction cup is arranged on the outer side wall of the outer-layer pipe, and the outer-layer pipe is connected with a smoke exhaust pipe used for filtering smoke. The base is pressed by the palm, and the outer tube is pressed on the skin, so that the spring contracts to control the inner core with the trocar to extend out, subcutaneous tissue is broken, the outer tube rebounds at the moment of penetrating through the peritoneum, the inner core retracts into the outer tube, and organs are prevented from being injured; an exhaust pipe is arranged outside the annular sucker and can be firmly fixed to the skin after negative pressure extraction; and the filter cotton and the activated carbon are arranged in the outer-layer tube, so that harmful substances in the smoke can be effectively filtered, and the health of medical staff is protected.

Description

Technical Field

[0001] The present application belongs to the technical field of medical devices, and specifically relates to a laparoscope stamp card with a protection, fixing and filtering device. Background Art

[0002] With the development of medicine, surgery has become more and more minimally invasive and sophisticated, and laparoscopic surgery has become the first choice for many surgeries. Today, laparoscopic surgery and instruments have become more and more mature. The laparoscopic puncture card currently used in clinical practice is a single-layer hollow cylindrical structure. Although it has been improved for several generations, there are still problems that cannot be completely solved during the operation.

[0003] For example, patent CN201524061U provides a laparoscope puncture card with a suction interface. The patent is composed of an inner layer and an outer layer, and a cavity is formed between the two layers. The support block is connected in the cavity. The upper end of the cavity is a negative pressure suction interface, and the lower end is the abdominal cavity, so that the negative pressure suction interface can exhaust smoke. However, the above patent has a negative pressure suction interface. When a large amount of smoke is generated in the abdominal cavity due to electrocoagulation, the smoke can be opened to exhaust. However, the smoke is discharged from the abdominal cavity and inhaled by the operating room staff in the operating room, which is harmful to health. Moreover, when the puncture card is inserted into the abdomen, it is necessary to hold the puncture device and the puncture card to break through the peritoneum and enter the abdominal cavity. If the force and angle cannot be well controlled during this process, it is easy to enter too deep and damage the abdominal organs. Utility Model Content

[0004] The present application provides a laparoscope puncture card with protection, fixing and filtering devices to solve the above-mentioned technical problems.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: a laparoscopic puncture card with a protection, fixing and filtering device, including an inner core and a sleeve assembly; the sleeve assembly includes an outer tube, an inner tube and a base, the inner tube is fixed to the center of the base, the outer tube is sleeved on the outside of the inner tube and connected to the base through an annular spring; the inner core is inserted into the base and the inner tube; wherein the outer tube is connected to a smoke exhaust pipe and an annular suction cup for filtering smoke.

[0006] Furthermore, in the vertical direction, when the annular spring is in a normal state, the height of the top of the inner core is less than the height of the tube mouth of the outer tube; when the annular spring is in a compressed state, the height of the top of the inner core is greater than the height of the tube mouth of the outer tube.

[0007] Furthermore, the inner core includes a core rod and a bottom plate, wherein the core rod is fixed to the center of the bottom plate, wherein the end of the core rod is in a spiral cross cone shape.

[0008] Furthermore, the outer wall of the outer tube is provided with threads; an annular suction cup is provided below the threads, and a smoke exhaust pipe connected to the inner side of the outer tube is provided below the annular suction cup.

[0009] Furthermore, a filter cotton layer and an activated carbon layer are provided inside the smoke exhaust pipe, and a first rotary switch is provided at the pipe opening of the smoke exhaust pipe.

[0010] Furthermore, an air extraction pipe is provided on the outer side of the annular suction cup, and a second rotary switch is provided at the pipe opening of the air extraction pipe.

[0011] Furthermore, a socket for inserting the inner core is provided at the center of the base, and a cross valve is provided in the socket.

[0012] Furthermore, the inner diameter of the insertion hole is larger than the outer diameter of the core rod, and the inner diameter of the insertion hole is smaller than the outer diameter of the bottom plate.

[0013] The beneficial effects of the present application are as follows: the present application uses the palm to press the base, and at the same time the outer tube is pressed on the skin, so that the spring is compressed, and the inner core with the poking card is controlled to extend, thereby breaking the subcutaneous tissue, and the outer tube rebounds at the moment of passing through the peritoneum, and the inner core retracts into the outer tube to prevent damage to the internal organs; and the outer tube is provided with filter cotton and activated carbon, which can effectively filter harmful substances in the smoke and protect the health of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the process of an embodiment of a laparoscope stamp card with a protection, fixing and filtering device of the present application;

[0015] Figure 2 It is a schematic diagram of the process of another embodiment of the laparoscope stamp card with protection, fixing and filtering devices of the present application;

[0016] Figure 3 This Figure 1 A schematic structural diagram of an embodiment of an inner core in FIG.

[0017] Figure 4 This Figure 1 A schematic structural diagram of an embodiment of a sleeve assembly;

[0018] Figure 5 This Figure 1 A schematic structural diagram of an embodiment of a smoke exhaust pipe in FIG. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0020] like Figure 1-5As shown, a laparoscope puncture card with a protection, fixing and filtering device includes an inner core 1 and a sleeve assembly; the sleeve assembly includes an outer tube 2, an inner tube 3 and a base 4, the inner tube 3 is fixed to the center of the base 4, the outer tube 2 is sleeved on the outside of the inner tube 3 and connected to the base 4 through an annular spring 5; the inner core 1 is inserted into the base 4 and the inner tube 3; wherein the outer tube 2 is connected to a smoke exhaust pipe 6 for filtering smoke. The inner tube 3 in the above design can be sleeved with the inner core 1 with the puncture card, and the smoke exhaust pipe 6 can be connected to an external exhaust device to effectively exhaust the smoke.

[0021] In the vertical direction, when the annular spring 5 is in the normal state ( Figure 1 ), the height of the top of the inner core 1 is less than the height of the mouth of the outer tube 2; when the annular spring 5 is in a compressed state ( Figure 2 ), the height of the top of the inner core 1 is greater than the height of the tube mouth of the outer tube 2. The annular spring 5 in the above design can press the inner core 1 in the inner tube 3 out of the tube mouth of the outer tube 2 when the outer tube 2 abuts against the skin to break the subcutaneous tissue. When the outer tube 2 enters the peritoneum, the annular spring 5 rebounds to retract the inner core 1 into the outer tube 2 to prevent the inner core 1 from damaging the organs in the abdominal cavity.

[0022] The inner core 1 includes a core rod 11 and a bottom plate 12, wherein the core rod 11 is fixedly connected to the center of the bottom plate 12, wherein the end of the core rod 11 is in a spiral cross cone shape. The end of the core rod 11 in the above design can easily break through the subcutaneous tissue to facilitate the outer tube 2 to enter the abdominal cavity.

[0023] The outer wall of the outer tube 2 is provided with a thread; an annular suction cup 7 is provided below the thread, and a smoke exhaust pipe 6 connected to the inner side of the outer tube 2 is provided below the annular suction cup 7. The suction cup in the above design can be adsorbed on the skin surface after the outer tube 2 reaches a certain depth, thereby preventing the instrument or laparoscope from slipping out during frequent entry and exit, and repeated entry and exit can easily cause abdominal wall injury and non-healing.

[0024] A filter cotton layer 61 and an activated carbon layer 62 are provided inside the smoke exhaust pipe 6, and a first rotary switch 63 is provided at the pipe mouth of the smoke exhaust pipe 6. The filter cotton layer 61 and the activated carbon layer 62 in the above design can effectively filter harmful substances in the smoke. The first rotary switch 63 can be connected to an external suction device and control the on and off of the smoke exhaust pipe 6.

[0025] An air suction pipe 71 is arranged outside the annular suction cup 7, and a second rotary switch 72 is arranged at the mouth of the air suction pipe 71. The air suction pipe 71 in the above design can be connected to an external vacuum device to vacuum the annular suction cup 7 that is attached to the skin, so that the suction cup is adsorbed on the skin.

[0026] The center of the base 4 is provided with a socket 41 for inserting the inner core 1, and a cross valve is provided in the socket. The cross valve in the above design will not hinder the insertion of the inner core 1, and can also prevent the leakage of carbon dioxide gas in the abdominal cavity, causing the pneumoperitoneum pressure to drop.

[0027] The inner diameter of the jack is larger than the outer diameter of the core rod 11, and the inner diameter of the jack is smaller than the outer diameter of the bottom plate 12. The jack in the above design can be inserted into the core rod 11, and the bottom plate 12 can ensure that the inner core 1 cannot completely enter the inner tube 3, so that the inner core 1 is easy to remove.

[0028] The specific working method is to break the skin with a scalpel (such as Figure 2 ) Place the puncture card into the inner core 1, hold it with the palm of your hand, press the base 4 against the outer tube 2, press the skin incision, compress the annular spring 5, and the outer tube 2 retreats to expose the tip of the inner core 1, breaking the subcutaneous tissue and passing through the peritoneum. The annular spring 5 rebounds instantly and wraps the outer tube 2 around the inner core 1 again to prevent the tip of the inner core 1 from stabbing the abdominal organs. Then pull out the inner core 1. When the annular suction cup 7 contacts the skin (such as Figure 1 ), connect the second rotary switch 72 through the exhaust device and extract air to make the suction cup close to the skin. When smoke needs to be exhausted, open the first rotary switch 63 of the smoke exhaust pipe 6 or connect the suction device to exhaust the smoke, that is, close the first rotary switch 63.

[0029] The present application uses the palm to press the base 4, while the outer tube 2 is pressed against the skin, so that the spring is compressed and the inner core 1 with the poking card is controlled to extend, thereby breaking the subcutaneous tissue. The outer tube 2 rebounds at the moment of passing through the peritoneum, exceeds the tip of the inner core 1, and wraps the inner core 1 in the outer tube 2 to prevent damage to the internal organs; and the outer tube 2 is provided with filter cotton and activated carbon, which can effectively filter harmful substances in the smoke and protect the health of medical staff.

[0030] The above description is only an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A laparoscope stamp card with a protection, fixing and filtering device, characterized in that: include: Inner core and sleeve assembly; the sleeve assembly includes an outer tube, an inner tube and a base, the inner tube is fixed to the center of the base, the outer tube is sleeved on the outside of the inner tube and connected to the base through an annular spring; the inner core is inserted into the base and the inner tube; wherein the outer tube is connected to a smoke exhaust pipe for filtering smoke.

2. A laparoscope stamp card with a protection, fixing and filtering device according to claim 1, characterized in that: In the vertical direction, when the annular spring is in a normal state, the height of the top end of the inner core is smaller than the height of the tube mouth of the outer tube; when the annular spring is in a compressed state, the height of the top end of the inner core is greater than the height of the tube mouth of the outer tube.

3. A laparoscope stamp card with protection, fixing and filtering device according to claim 2, characterized in that: The inner core comprises a core rod and a bottom plate, wherein the core rod is fixedly connected to the center of the bottom plate, wherein the end of the core rod is in a spiral cross cone shape.

4. The laparoscope stamp card with protection, fixing and filtering device according to claim 1, characterized in that: The outer wall of the outer tube is provided with threads; an annular suction cup is provided below the threads, and the smoke exhaust pipe connected to the inner side of the outer tube is provided below the annular suction cup.

5. A laparoscope stamp card with protection, fixing and filtering device according to claim 4, characterized in that: A filter cotton layer and an activated carbon layer are arranged inside the smoke exhaust pipe, and a first rotary switch is arranged at the pipe opening of the smoke exhaust pipe.

6. A laparoscope stamp card with protection, fixing and filtering device according to claim 4, characterized in that: An air extraction pipe is arranged outside the annular suction cup, and a second rotary switch is arranged at the pipe mouth of the air extraction pipe.

7. A laparoscope stamp card with protection, fixing and filtering device according to claim 3, characterized in that: A plug hole for plugging the inner core is arranged at the center of the base, and a cross valve is arranged in the plug hole.

8. A laparoscope stamp card with protection, fixing and filtering device according to claim 7, characterized in that: The inner diameter of the insertion hole is larger than the outer diameter of the core rod, and the inner diameter of the insertion hole is smaller than the outer diameter of the bottom plate.

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