Traction instrument for thoracoscopic surgery based on negative pressure principle

Abstract

The utility model relates to the field of traction instruments, in particular to a thoracoscopic surgery traction instrument based on the negative pressure principle, which comprises a traction body, a plurality of electric suction cup seats are arranged at the bottom end of the traction body, suction cup openings are arranged at the front ends of the electric suction cup seats, and positioning grooves are arranged on the inner side of the traction body behind the electric suction cup seats. The rear end of the electric suction cup base is inserted into the inner side of the positioning groove, connecting bases are arranged on the two sides of the electric suction cup base and located on the outer side face of the positioning groove, limiting blocks are arranged at the upper end and the lower end of the electric suction cup base and located on the front end faces of the connecting bases, and a rotary knob is arranged on one side of one connecting base; the electric suction cup seat is matched with the suction cup opening to pull the traction tissue of a patient, so that the injury of a traction instrument to the patient is reduced, and the medical staff can perform an operation conveniently, and a plurality of positioning grooves are formed in the inner side, behind the electric suction cup seat, of the traction body; therefore, the number of the electric suction cup seats can be conveniently adjusted by medical staff according to needs.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pulling instrument technology field especially based on negative pressure principle's thoracoscope operation is with pulling instrument. BACKGROUND

[0002] At present, thoracoscope operation has become the mainstream of thoracic surgery, and when cleaning the lymph nodes in the chest cavity, a pulling suction device is needed to pull open the blood vessels, expose the gap and facilitate the thoracoscope operation.

[0003] When the pulling suction device is used, since the pulling suction device mostly uses forceps and hooks, during blood vessel separation overshoot, the operator usually uses the mode of cooperation between the suction device and energy instruments for operation, and the forceps and hooks will cause certain damage to the internal tissues of the patient during traction, affecting the subsequent recovery of the patient.

[0004] Therefore, in view of the above-mentioned problem that the existing pulling suction device mostly uses forceps and hooks, which causes certain damage to the internal tissues of the patient during traction, a pulling instrument based on negative pressure principle for thoracoscope operation can be designed, which pulls the pulled tissues of the patient through the cooperation of the electric suction disc seat and the suction disc port, reduces the damage to the patient caused by the pulling instrument, and facilitates the operation of medical staff, and a plurality of positioning grooves are arranged on the inner side of the pulling body behind the electric suction disc seat, so that the medical staff can adjust the number of electric suction disc seats according to needs. SUMMARY

[0005] In order to overcome the problem that the existing pulling suction device mostly uses forceps and hooks, which causes certain damage to the internal tissues of the patient during traction.

[0006] The technical scheme of the utility model is as follows: a pulling instrument based on negative pressure principle for thoracoscope operation, comprising a pulling body, a plurality of electric suction disc seats are arranged at the bottom end of the pulling body, a suction disc port is arranged at the front end of the electric suction disc seat, a positioning groove is arranged on the inner side of the pulling body behind the electric suction disc seat, the rear end of the electric suction disc seat is inserted into the inner side of the positioning groove, a connecting seat is arranged on the outer side surface of the positioning groove on both sides of the electric suction disc seat, a limiting block is arranged on the front end surface of the connecting seat on both ends of the electric suction disc seat, one side of one connecting seat is provided with a knob, one end of the knob is located on the inner side of the connecting seat and is provided with a transmission rod, one end of the transmission rod penetrates through the connecting seat and extends to the inner side of the other connecting seat.

[0007] The pulled tissues of the patient are pulled through the cooperation of the electric suction disc seat and the suction disc, the damage to the patient caused by the pulling instrument is reduced, the operation of medical staff is facilitated, and a plurality of positioning grooves are arranged on the inner side of the pulling body behind the electric suction disc seat, so that the medical staff can adjust the number of electric suction disc seats according to needs.

[0008] Preferably, the electric suction cup seat and the suction cup mouth are integrated, and the rear end of the suction cup mouth is located at the inner side of the electric suction cup seat and is provided with a suction cup motor.

[0009] Preferably, the shape of the rear end of the electric suction cup seat is consistent with the shape of the positioning groove, and the rear end of the electric suction cup seat is inserted into the inner side of the positioning groove.

[0010] Preferably, the limiting block is an L-shaped connecting block, the rear end of the limiting block is located at the inner side of the connecting seat and is provided with a movable groove, and the rear end of the limiting block extends to the inner side of the movable groove.

[0011] Preferably, the upper and lower ends of the transmission rod are both provided with a lead screw at the inner side of the connecting seat, one end of the lead screw extends to the inner side of the movable groove through the limiting block, and the lead screw and the limiting block are mutually engaged.

[0012] Preferably, two lead screws are provided, and the two lead screws are symmetrically centered on the transmission rod.

[0013] Preferably, one end of each of the two lead screws and the intersection of the transmission rod and the two lead screws are provided with bevel gears, and the transmission rod is in transmission connection with the two lead screws through the bevel gears.

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

[0015] The electric suction cup seat and the suction cup mouth are combined to pull the patient's pulled tissue, reduce the damage caused by the pulling instrument to the patient, facilitate the operation of the medical staff, and the rear end of the electric suction cup seat is located at the inner side of the pulling body and is provided with a plurality of positioning grooves, so that the medical staff can adjust the number of electric suction cup seats according to the needs, and when the electric suction cup seat is inserted into the inner side of the pulling body, the limiting block at the front end of the connecting seat is driven to move up and down by rotating the knob, so that the electric suction cup seat is clamped by the limiting block, and the electric suction cup seat and the pulling body are connected. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The overall structure of the utility model is shown;

[0017] Figure 2 The structure of the electric suction cup seat of the utility model is shown;

[0018] Figure 3 The structure of the connecting seat of the utility model is shown;

[0019] Figure 4 The internal structure of the connecting seat of the utility model is shown.

[0020] Explanation of reference signs: 1, pulling body; 2, electric suction cup base; 3, connecting seat; 4, suction cup mouth; 5, movable groove; 6, limiting block; 7, knob; 8, positioning groove; 9, transmission rod; 10, screw rod; 11, bevel gear. DETAILED DESCRIPTION

[0021] The utility model is further explained below in combination with the drawings and examples.

[0022] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a thoracoscope surgery pulling instrument based on negative pressure principle, including pulling body 1, the bottom end of pulling body 1 is equipped with multiple electric suction cup bases 2, the front end of electric suction cup base 2 is equipped with suction cup mouth 4, electric suction cup base 2 and suction cup mouth 4 are integrated structure, the rear end of suction cup mouth 4 is located in the inside of electric suction cup base 2 and is equipped with suction cup motor, to pull body 1 is then inserted into the inside of patient's body, subsequently by electric suction cup base 2 cooperation suction cup mouth 4, the pulling tissue of patient is pulled, it is convenient for medical staff to operate;

[0023] Please refer to Figures 2-3 In the embodiment, the rear of electric suction cup base 2 is located in the inside of pulling body 1 and is equipped with positioning groove 8, the rear end of electric suction cup base 2 is inserted in the inside of positioning groove 8, the shape of the rear end of electric suction cup base 2 is consistent with the shape of positioning groove 8, the rear end of electric suction cup base 2 is inserted in the inside of positioning groove 8, to facilitate electric suction cup base 2 and pulling body 1 are connected;

[0024] Please refer to Figures 2-4In the embodiment, the two sides of the electric suction cup seat 2 are located outside the positioning groove 8, and each is provided with a connecting seat 3. The upper and lower ends of the electric suction cup seat 2 are located at the front end of the connecting seat 3 and are provided with a limiting block 6. The limiting block 6 is an L-shaped connecting block. The rear end of the limiting block 6 is located at the inner side of the connecting seat 3 and is provided with a movable groove 5. The rear end of the limiting block 6 extends to the inner side of the movable groove 5. One side of one of the connecting seats 3 is provided with a knob 7. One end of the knob 7 is located at the inner side of the connecting seat 3 and is provided with a transmission rod 9. One end of the transmission rod 9 extends to the inner side of the other connecting seat 3 through the connecting seat 3. The upper and lower ends of the transmission rod 9 are located at the inner side of the connecting seat 3 and are provided with a lead screw 10. One end of the lead screw 10 extends to the inner side of the movable groove 5 through the limiting block 6. The lead screw 10 and the limiting block 6 are in meshing engagement. The lead screw 10 is provided with two lead screws 10, which are symmetrically arranged around the transmission rod 9. One end of each of the two lead screws 10 and the intersection of the transmission rod 9 and the two lead screws 10 are provided with a bevel gear 11. The transmission rod 9 is in transmission connection with the two lead screws 10 through the bevel gear 11. When the electric suction cup seat 2 is inserted into the inside of the traction body 1, the knob 7 is rotated, the knob 7 drives the lead screw 10 at the inner side of the connecting seat 3 to rotate through the transmission rod 9, the lead screw 10 and the limiting block 6 are in meshing engagement, so that the lead screw 10 drives the limiting block 6 to move up and down in the inner side of the movable groove 5, and the electric suction cup seat 2 is clamped, so as to facilitate the connection between the electric suction cup seat 2 and the traction body 1.

[0025] When working, the power is turned on, the device is started, the traction body 1 is inserted into the inside of the patient's body, then the patient's traction tissue is tractioned through the cooperation of the electric suction cup seat 2 and the suction cup port 4, which is convenient for medical staff to perform surgery. The rear end of the electric suction cup seat 2 is located at the inner side of the traction body 1 and is provided with a plurality of positioning grooves 8, so that medical staff can adjust the number of electric suction cup seats 2 according to needs. When the electric suction cup seat 2 is inserted into the inside of the traction body 1, the knob 7 is rotated, the knob 7 drives the lead screw 10 at the inner side of the connecting seat 3 to rotate through the transmission rod 9, the lead screw 10 and the limiting block 6 are in meshing engagement, so that the lead screw 10 drives the limiting block 6 to move up and down in the inner side of the movable groove 5, and the electric suction cup seat 2 is clamped, so as to facilitate the connection between the electric suction cup seat 2 and the traction body 1.

[0026] Through the above steps, the patient's traction tissue is tractioned through the cooperation of the electric suction cup seat 2 and the suction cup port 4, which reduces the damage of the traction instrument to the patient and is convenient for medical staff to perform surgery. The rear end of the electric suction cup seat 2 is located at the inner side of the traction body 1 and is provided with a plurality of positioning grooves 8, so that medical staff can adjust the number of electric suction cup seats 2 according to needs. The existing traction suction device mostly uses forceps and hooks, which causes certain damage to the internal tissue of the patient during traction.

Claims

1. A pulling device for thoracoscopy based on the principle of negative pressure, comprising a pulling body (1); characterized by the fact that: The bottom end of the pulling body (1) is provided with a plurality of electric suction cup seats (2), the front end of the electric suction cup seat (2) is provided with a suction cup port (4), the rear of the electric suction cup seat (2) is provided with a positioning groove (8) on the inner side of the pulling body (1), the rear end of the electric suction cup seat (2) is inserted into the inner side of the positioning groove (8), the two sides of the electric suction cup seat (2) are provided with a connecting seat (3) on the outer side of the positioning groove (8), the upper and lower ends of the electric suction cup seat (2) are provided with a limiting block (6) on the front end face of the connecting seat (3), one side of one connecting seat (3) is provided with a knob (7), one end of the knob (7) is provided with a transmission rod (9) on the inner side of the connecting seat (3), one end of the transmission rod (9) extends to the inner side of the other connecting seat (3) through the connecting seat (3).

2. The retractor device for thoracoscopy based on the negative pressure principle according to claim 1, characterized in that: The electric suction cup seat (2) and the suction cup port (4) are an integral structure, the rear end of the suction cup port (4) is provided with a suction cup motor on the inner side of the electric suction cup seat (2).

3. The pulling device according to claim 1, wherein: the pulling device is a thoracoscope pulling device. The shape of the rear end of the electric suction cup seat (2) is consistent with the shape of the positioning groove (8), and the rear end of the electric suction cup seat (2) is inserted into the inner side of the positioning groove (8).

4. The pulling device according to claim 1, wherein: The limiting block (6) is an L-shaped connecting block, the rear end of the limiting block (6) is provided with a movable groove (5) on the inner side of the connecting seat (3), and the rear end of the limiting block (6) extends to the inner side of the movable groove (5).

5. The thoracoscopic surgery retraction device according to claim 1, characterized in that: The upper and lower ends of the transmission rod (9) are provided with a lead screw (10) on the inner side of the connecting seat (3), one end of the lead screw (10) extends to the inner side of the movable groove (5) through the limiting block (6), and the lead screw (10) and the limiting block (6) are engaged with each other.

6. The thoracoscopic surgery retraction device based on negative pressure principle according to claim 1, characterized in that: The lead screw (10) is provided with two, and the two lead screws (10) are symmetrically centered on the transmission rod (9).

7. The thoracoscopic surgery retraction device according to claim 1, characterized in that: One end of the two lead screws (10) and the intersection of the transmission rod (9) and the two lead screws (10) are provided with bevel gears (11), and the transmission rod (9) is in transmission connection with the two lead screws (10) through the bevel gears (11).

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