Puncture outfit
By designing a puncture device with a filter layer, a pressure sensor and an anti-backflow component, the problems of smoke interference and sealing during minimally invasive abdominal surgery are solved, effective smoke evacuation and pneumoperitoneum management are achieved, and the continuity of the operation and the safety of the equipment are ensured.
Patent Information
- Application Number
- CN202422567698.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-10-23
AI Technical Summary
In existing minimally invasive abdominal surgeries, the use of electric or ultrasonic scalpels produces smoke that interferes with endoscopic imaging, and universal puncture devices cannot be effectively sealed, affecting the smoke exhaust effect and pneumoperitoneum state, which may cause the operation to be interrupted.
A trocar is designed, comprising a housing, an insertion tube, a filter layer, a pressure sensor and an anti-backflow assembly to ensure sealing and pressure detection, prevent excessive smoke exhaust or inflation, and is equipped with a circuit board to control valve operation.
It achieves effective smoke evacuation and pneumoperitoneum management, prevents abdominal cavity collapse, protects equipment from contamination, and ensures the normal operation.
Smart Images
Figure CN223438613U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a puncture equipment, specifically relates to a puncture outfit. BACKGROUND
[0002] When the abdominal cavity minimally invasive surgery, need to use the electric knife or ultrasonic knife, the two kinds of surgical instruments will burn the human tissue when using, produce a large amount of debris, form smoke in the abdominal cavity, interfere with endoscope imaging, influence the operation of the doctor to operate. Therefore, need to carry out smoke exhaust in time;And the abdominal cavity operation is needed to keep the visual field in the state of pneumoperitoneum, and the continuous high flow smoke exhaust can influence the state of pneumoperitoneum, if the matching pneumoperitoneum machine cannot supplement air in time, can probably cause the abdominal cavity to collapse, lead to the interruption of operation.
[0003] When the abdominal cavity minimally invasive surgery, need to use the general puncture outfit to puncture, and the pneumoperitoneum machine establishes pneumoperitoneum, simultaneously need to use the smoke exhaust machine to exhaust smoke. However, the smoke exhaust machine and the pneumoperitoneum machine all do not have the special puncture outfit, and the puncture outfit used in clinical operation is the general puncture outfit, can include the instrument channel, and this channel generally will not be completely sealed, and the smoke exhaust machine can reduce the negative pressure when exhausting smoke, influence the smoke exhaust effect and the normal operation of the operation.
[0004] Therefore, it is necessary to improve the prior art. SUMMARY
[0005] The utility model discloses a kind of puncture outfit, which can guarantee smoke exhaust effect and normal operation, to solve the problems of the prior art.
[0006] The technical scheme adopted by the utility model is as follows: a puncture outfit, including shell and insertion tube;
[0007] The shell is provided with an inner cavity;The bottom of the inner cavity is paved with a filter layer;
[0008] One end of the insertion tube is connected with the shell, and the inside of the insertion tube is communicated with the inner cavity;The other end of the insertion tube is pointed, for piercing into the abdominal cavity of human body;
[0009] One side of the shell is provided with an interface;The inner end of the interface is provided with a valve, which is communicated with the inner cavity, and the outer end of the interface is communicated with the air inlet pipe of the smoke exhaust machine or the air outlet pipe of the pneumoperitoneum machine.
[0010] According to the above scheme, a pressure sensor is arranged in the inner cavity.
[0011] According to the above scheme, a backflow prevention assembly is connected to the outer end of the interface, and the backflow prevention assembly includes an elbow pipe and a cable-stayed pipe.
[0012] The lower elbow pipe comprises a single-side vertical pipe and a lower U-shaped pipe; the upper end of the vertical pipe, the upper end of the cable-stayed pipe and the interface are communicated; the lower end of the vertical pipe is connected with one end of the U-shaped pipe; the other end of the U-shaped pipe, the lower end of the cable-stayed pipe and the air inlet pipe of the smoke exhaust machine are communicated, and the communication port is provided with a movable valve.
[0013] According to the scheme, the movable valve comprises a baffle and a floating ball; the lower end of the baffle is hinged to the bottom of the air inlet pipe port of the smoke exhaust machine, and the upper end of the baffle can be turned around the hinged end; and the floating ball is installed outside the upper end of the baffle.
[0014] According to the scheme, the shell is spherical, and the top of the shell is provided with an opening, and the opening is provided with a cover.
[0015] According to the scheme, the cover is connected with the shell through threads or buckles.
[0016] According to the scheme, the filter layer is medical gauze or a medical cotton ball; and the filter layer covers the communication port between the insertion pipe and the inner cavity.
[0017] According to the scheme, the puncture device further comprises a circuit board arranged in the cover; and the pressure sensor and the valve arranged in the inner end of the interface are connected with the circuit board through cables respectively.
[0018] The puncture device has the following beneficial effects:
[0019] 1. The puncture device is used for the smoke exhaust machine or the gas abdominal machine, does not need to be repeatedly installed and disassembled, has good sealing effect, guarantees the smoke exhaust effect and the establishment of the gas abdominal machine, and enables the surgery to be normally performed; the inner cavity is designed with a filter layer, large tissue debris and tissue fluid in smoke can be filtered, and the smoke exhaust effect is improved.
[0020] 2. The pressure sensor is designed, the interface of the puncture device is connected with the air inlet pipe of the smoke exhaust machine, the pressure sensor in the puncture device is used to detect the pressure in the abdominal cavity, when the pressure in the abdominal cavity is lower than the set pressure, the smoke exhaust is stopped, the abdominal cavity is prevented from being collapsed due to excessive smoke exhaust, and the surgery process is effectively prevented from being affected; the interface of the puncture device is connected with the air outlet pipe of the gas abdominal machine, the pressure sensor in the puncture device is used to detect the pressure in the abdominal cavity, when the pressure in the abdominal cavity reaches the set pressure, the air injection is stopped, and the abdominal cavity pressure is effectively prevented from being too large to cause harm to the patient due to excessive air injection.
[0021] 3. The anti-back suction assembly is designed, and tissue fluid / blood can be effectively prevented from being sucked back into the smoke exhaust machine, so that the equipment is prevented from being polluted or damaged. DRAWINGS
[0022] Figure 1 It is a structural schematic view of the first embodiment.
[0023] Figure 2 Structure diagram of embodiment two.
[0024] Figure 3 Structure diagram of embodiment two.
[0025] Wherein: 1-insertion tube; 2-housing; 3-cover; 4-interface; 5-valve; 6-power supply; 7-circuit board; 8-pressure sensor; 9-cable; 10-filter layer; 11, baffle 11; 12, float ball; 13, vertical pipe; 14, U-shaped pipe; 15, inclined pipe 15; 16, air inlet pipe of exhaust fan. DETAILED DESCRIPTION
[0026] In order to better understand the present application, the present application will be further described below in conjunction with the drawings and specific embodiments.
[0027] Embodiment one
[0028] As Figure 1 shown, a puncture device, specifically a puncture device for an exhaust fan or a gas insufflation machine, comprising a housing 2 and an insertion tube 1;
[0029] The housing 2 is provided with an inner cavity; the bottom of the inner cavity is paved with a filter layer 10;
[0030] One end of the insertion tube 1 is connected with the housing 2, and the inside of the insertion tube 1 is in communication with the inner cavity; the other end of the insertion tube 1 is pointed, used for piercing into the abdominal cavity of a human body;
[0031] One side of the housing 2 is provided with an interface 4; the inner end of the interface 4 (i.e. the inlet end close to the inner cavity) is provided with a valve 5, which is in communication with the inner cavity, and the other end of the interface 4 is in communication with the air inlet pipe 16 of the exhaust fan or the air outlet pipe of the gas insufflation machine.
[0032] In the present application, the pointed part of the insertion tube 1 of the puncture device is inserted into the abdominal cavity of a human body, when used for the exhaust fan, the gas in the abdominal cavity enters the inner cavity of the housing 2 through the insertion tube 1, is filtered by the filter layer 10 in the inner cavity, and then flows into the inside of the air inlet pipe 16 of the exhaust fan through the interface 4; when used for the gas insufflation machine, the gas discharged by the gas insufflation machine enters the abdominal cavity of a human body through the housing 2, and inflates the abdominal cavity.
[0033] In the present application, the insertion tube 1 is a pointed hollow circular tube, which is made of medical stainless steel or medical plastic.
[0034] In the present application, the interface 4 close to one end of the housing 2 is provided with a valve 5, which is used for controlling the on-off of the inside of the interface 4.
[0035] Preferably, the inner cavity is provided with a pressure sensor 8, which is used for testing the pressure of the abdominal cavity (after the abdominal cavity is in communication with the inner cavity of the housing 2 through the insertion tube 1, the pressure of the abdominal cavity is consistent with the pressure of the inner cavity).
[0036] The shell 2 is spherical, the top of the shell 2 is provided with an opening, and the opening is provided with a cover 3. The cover 3 is connected with the shell 2 through threads or buckles, and the inner cavity of the shell 2 forms a sealed environment. The design of the cover 3 facilitates replacement of the filter layer 10 and the pressure sensor 8 in the shell 2.
[0037] In the utility model, the filter layer 10 is medical gauze or medical cotton ball; the filter layer 10 covers the communication port of the insertion tube 1 and the inner cavity. The design of the filter layer 10 can prevent bulk tissue debris or tissue liquid from polluting the inner cavity of the shell 2 during smoke exhaust.
[0038] Embodiment two
[0039] In addition to the above configuration, as shown in the drawings, the interface outer end is connected with an anti-back suction assembly, which prevents tissue liquid from being sucked back into the smoke exhauster during smoke exhaust, causing equipment damage. The anti-back suction assembly comprises a bend pipe and a cable-stayed pipe 15. Figure 3
[0040] The bend pipe comprises a single-side vertical pipe 13 and a lower U-shaped pipe 14; the upper end of the vertical pipe 13, the upper end of the cable-stayed pipe 15 and the interface are in communication; the lower end of the vertical pipe 13 is connected with one end of the U-shaped pipe 14; the other end of the U-shaped pipe 14, the lower end of the cable-stayed pipe 15 and the smoke exhauster inlet pipe 16 (or the gas laparoscope outlet pipe) are in communication, and the communication port is provided with a movable valve piece.
[0041] Preferably, the movable valve piece comprises a baffle 11 and a floating ball 12; the lower end of the baffle 11 is hinged to the bottom of the smoke exhauster inlet pipe 16 port, and the upper end of the baffle 11 can be flipped around the hinge end; the floating ball 12 is installed on the outer side of the upper end of the baffle 11 (located on one side of the cable-stayed pipe 15).
[0042] In the utility model, the baffle 11 can be flipped to a vertical state on the outer side of the smoke exhauster inlet pipe 16 port (i.e. below the cable-stayed pipe 15), and the communication port is closed (the smoke exhauster inlet pipe 16 port is closed); the size of the baffle 11 is designed to be slightly larger than the size of the smoke exhauster inlet pipe 16 port, or a limiting piece is designed on the smoke exhauster inlet pipe 16 port, so that the baffle 11 cannot be flipped inside the smoke exhauster inlet pipe 16.
[0043] The working principle of the anti-back suction assembly is as follows: when there is no liquid in the U-shaped pipe 14, gas passes from the upper side of the U-shaped pipe 14, and normal smoke exhaust is performed (as shown in the drawings). Figure 3 As shown, the floating ball 12 of the baffle 11 is not affected by the buoyancy, and the baffle 11 is not turned to the vertical state); when liquid enters, the liquid is blocked and falls into the U-shaped tube 14 below, and when the liquid level in the U-shaped tube 14 continuously rises, the baffle 11 with the floating ball 12 is affected by the buoyancy, and the upper end is turned up and rises, and when the baffle 11 is turned to the vertical state, the communication port is sucked and blocked by the negative pressure, so that the gas path is blocked.
[0044] A method for using a puncture device for a smoke exhauster, the method comprising:
[0045] Connecting the interface 4 of the puncture device to the air inlet pipe 16 of the smoke exhauster, closing the valve 5 at the interface 4, inserting the sharp end of the insertion tube 1 into the abdominal cavity of the human body, and the smoke generated during the operation enters the inner cavity of the shell 2 through the insertion tube 1, and the filter layer 10 at the bottom of the inner cavity filters the large tissue debris or tissue fluid; the pressure sensor 8 in the inner cavity of the shell 2 detects the pressure in the inner cavity, and when it is detected that the pressure in the inner cavity reaches the set pressure, the valve 5 at the interface 4 is opened, and the gas in the inner cavity is discharged after entering the smoke exhauster; when the pressure sensor 8 detects that the pressure is lower than the set pressure (the value is selected according to the actual situation), the valve 5 at the interface 4 is closed, and the smoke exhaust path is blocked to prevent excessive smoke exhaust from causing the abdominal cavity to collapse. The anti-suck-back assembly can prevent tissue fluid from being sucked back into the smoke exhauster during the smoke exhaust process, thereby preventing equipment damage.
[0046] In addition, the utility model also can use the pneumoperitoneum machine as the puncture device of the pneumoperitoneum machine.
[0047] Connecting the interface 4 of the puncture device to the air outlet pipe of the pneumoperitoneum machine, opening the valve 5 at the interface 4, inserting the sharp end of the insertion tube 1 into the abdominal cavity of the human body, and starting the pneumoperitoneum machine to inflate the abdominal cavity through the puncture device; the pressure sensor 8 detects the pressure in the abdominal cavity, and when it is detected that the pressure in the abdominal cavity does not reach the set pressure (the value is selected according to the actual situation), the pneumoperitoneum machine continues to start to normally inflate the abdominal cavity; when it is detected that the pressure in the abdominal cavity reaches the set pressure, the pneumoperitoneum machine and the valve 5 at the interface 4 are closed, and the inflation is stopped. At this time, the anti-suck-back assembly does not work.
[0048] In the utility model, the set pressure for the smoke exhauster and the set pressure for the pneumoperitoneum machine are determined according to the actual situation.
[0049] The utility model still can introduce circuit board 7, circuit board 7 sets up in lid 3, pressure sensor 8 and valve 5 all respectively through cable 9 with circuit board 7 links to each other, and circuit board 7 receives the pressure data that pressure sensor 8 sent, controls the on-off of valve 5. Valve 5 is solenoid valve. Lid 3 still be equipped with power supply 6 for pressure sensor 8 and valve 5 power supply, specifically can be button cell. Pressure sensor 8 is used for testing the real-time pressure of abdominal cavity and sends pressure data to circuit board 7, and circuit board 7 receives pressure data and compares with set pressure: for smoke exhauster, if real-time pressure is less than set pressure, circuit board 7 controls interface 4 valve 5 to close, stops the smoke, if real-time pressure exceeds set pressure, circuit board 7 controls interface 4 valve 5 to open, allows the smoke exhaust, for gas trophone, if real-time pressure is less than set pressure, circuit board 7 controls interface 4 valve 5 to keep open, and gas trophone carries out inflation, if real-time pressure exceeds set pressure, circuit board 7 controls interface 4 valve 5 to close, stops inflation.
[0050] The content not described in the specification is the prior art known to the person skilled in the art.
[0051] Finally, it should be noted that the above is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the embodiment, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part technical feature, but any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.
Claims
1. A trocar, characterized in that: comprising a housing and an insertion tube; The shell is provided with an inner cavity; the bottom of the inner cavity is covered with a filter layer; One end of the insertion tube is connected to the housing, and the interior of the insertion tube is in communication with the inner cavity; the other end of the insertion tube is pointed and is used to pierce the abdominal cavity of the human body; An interface is provided on one side of the shell; the inner end of the interface is provided with a valve, the valve is communicated with the inner cavity, and the outer end of the interface is communicated with the air inlet pipe of the smoke exhaust machine or the air outlet pipe of the pneumoperitoneum machine.
2. The trocar according to claim 1, wherein: A pressure sensor is provided in the inner cavity.
3. The trocar according to claim 1, wherein: The outer end of the interface is connected to an anti-backflow component, which includes a lower bend pipe and an oblique pipe; The lower bend pipe includes a vertical pipe on one side and a U-shaped pipe at the bottom; the upper end of the vertical pipe, the upper end of the oblique pipe and the interface are connected; the lower end of the vertical end is connected to one end of the U-shaped pipe; the other end of the U-shaped pipe, the lower end of the oblique pipe and the air intake pipe of the smoke exhaust fan are connected, and the connecting port is provided with a movable valve.
4. The trocar according to claim 3, wherein: The movable valve member includes a baffle and a float; the lower end of the baffle is hinged to the bottom of the smoke exhaust fan air inlet port, and the upper end of the baffle can be turned around the hinged end; the float is installed on the outer side of the upper end of the baffle.
5. The trocar according to any one of claims 1 to 4, wherein: The shell is spherical, and an opening is provided on the top of the shell, and a cover is provided on the opening.
6. The trocar according to claim 5, wherein: The cover is connected to the shell through threads or buckles.
7. The trocar according to claim 6, wherein: The filter layer is medical gauze or medical cotton balls; the filter layer covers the communication port between the insertion tube and the inner cavity.
8. The trocar according to claim 1, wherein: The trocar further comprises a circuit board, which is arranged in the cover body; the pressure sensor and the valve arranged at the inner end of the interface are respectively connected to the circuit board via cables.