Air leakage prevention puncture outfit with annular air bag fixing structure

Abstract

The invention relates to the technical field of puncture outfits, and discloses an air leakage prevention puncture outfit with an annular air bag fixing structure, which comprises a mounting shell, a calandria is mounted on the side surface of the mounting shell, a puncture outer cylinder is fixed at the bottom of the mounting shell, and a fixing assembly is arranged on the puncture outer cylinder. The fixing assembly comprises an upper supporting air bag and a lower supporting air bag, and an inflator is arranged on the upper supporting air bag; an air conveying pipe is installed on the lower supporting air bag, the air conveying pipe penetrates through the puncture outer cylinder and is fixedly installed on the installation shell, and a small air pump connected with the air conveying pipe is fixed to the installation shell. By arranging the upper supporting air bag, the lower supporting air bag, the air conveying pipe and the small air pump, the inflator can inflate the upper supporting air bag, meanwhile, the small air pump can inflate the lower supporting air bag through the air conveying pipe, and when the puncture outer barrel is inserted into the body of a patient, the puncture outer barrel is limited and fixed.

Description

Technical Field

[0001] The present invention relates to the technical field of trocars, in particular to an anti-leakage trocar with an annular airbag fixing structure. Background Art

[0002] A medical trocar is a medical device used for clinical puncture operations. It completes sampling, medication, drainage, and other operations by piercing the body cavity or tissue. It consists of a needle, cannula, handle, and other components. Strict aseptic operation is required to reduce the risk of infection. Its design must balance precision and safety. Application scenarios cover multiple fields including diagnosis and treatment. A laparoscopic trocar is a key device for establishing an instrument channel during laparoscopic surgery. Its core function is to provide an operating channel for surgical instruments through a tiny incision, thereby improving the minimally invasive effect and postoperative recovery speed. The main design takes into account both operating space and safety.

[0003] During operation of the puncture device, the puncture needle and surgical instrument need to be inserted, moved, and removed. However, when the puncture needle or surgical instrument pierces the rubber membrane of the existing puncture device, the through hole on the surface of the rubber membrane is irregular in shape, which is easy to tear during the movement and adjustment of the position. It is also difficult to perfectly fit the surgical instrument and puncture needle, and the sealing effect is poor. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides an anti-leakage puncture device with an annular airbag fixing structure, which solves the problem that when the puncture needle or surgical instrument pierces the rubber membrane of the existing puncture device, the through hole on the surface of the rubber membrane is irregular in shape, and it is difficult to perfectly fit the surgical instrument and puncture needle, resulting in poor sealing effect.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an anti-leakage puncture device with an annular airbag fixing structure, comprising: The mounting shell has a row of tubes installed on its side, and a puncture outer cylinder is fixed to the bottom of the mounting shell. A fixing assembly is provided on the puncture outer cylinder, and the fixing assembly includes an upper support airbag and a lower support airbag. An inflator is provided on the upper support airbag; an air supply pipe is installed on the upper part of the lower support airbag, and the air supply pipe passes through the puncture outer cylinder and is fixedly mounted on the mounting shell. A small air pump connected to the air supply pipe is fixed on the mounting shell; A fixing block is placed on the mounting shell, a puncture needle is installed at the bottom of the fixing block, a sealing assembly is provided inside the mounting shell, the sealing assembly includes a sealing rubber sleeve, and the puncture needle passes through the sealing rubber sleeve and the puncture outer cylinder and extends to the outside of the puncture outer cylinder.

[0006] Preferably, the sealing assembly includes a sliding rubber cylinder fixed to the outside of the sealing rubber sleeve, two circular plates are fixed on the outer surface of the sliding rubber cylinder, two grooves are provided on the bottom circular plate and a rotating rod is rotatably installed in the groove, a push rod is provided at both ends of the rotating rod, the end of the push rod is hinged with a sliding rod, the sliding rod is slidably arranged in a strip slideway provided on the rotating rod, a limiting plate is fixed on the bottom circular plate, the push rod is slidably arranged on the limiting rod and a pushing block is fixed on the end of the push rod, and a channel for the pushing block to enter is provided on the sliding rubber cylinder.

[0007] Preferably, a return spring is sleeved on the outer surface of the push rod, and two ends of the return spring are fixedly mounted on the push block and the limit plate respectively.

[0008] Preferably, a plurality of limiting rods are fixedly installed inside the mounting shell, and the annular plate is slidably arranged on the outer surfaces of the plurality of limiting rods.

[0009] Preferably, an adaptable spring is sleeved on the outer surface of the limiting rod, and two ends of the adaptable spring are fixedly mounted on the inner wall of the mounting shell and the annular plate respectively.

[0010] Preferably, the outer surface sliding sleeve of the puncture outer cylinder is provided with a rotating sleeve, and the upper supporting airbag is fixedly mounted on the outer surface of the rotating sleeve.

[0011] Preferably, an external thread groove is provided on the outer surface of the puncture outer cylinder, and an internal thread groove is provided on the inner wall of the rotating sleeve for use in conjunction with the external thread groove.

[0012] Preferably, the interior of the puncture needle is configured to be hollow, a transparent observation area is provided on the puncture needle, and an endoscopic camera is provided inside the puncture needle.

[0013] Preferably, a support rod is installed on the endoscopic camera head, a connecting block is fixed to the top end of the support rod, and a connecting groove for the connecting block to be inserted is provided on the fixing block.

[0014] Preferably, the outer surface of the connecting block is provided with a plurality of protruding limiting edges, and the fixing block is provided with limiting channels for the limiting edges to pass through.

[0015] The present invention provides a leak-proof puncture device with an annular airbag fixing structure. It has the following beneficial effects: 1. The present invention provides a sealing rubber sleeve, which can seal the puncture needle without hindering the left and right swing adjustment of the puncture needle. The sealing rubber sleeve wraps the puncture needle, effectively avoiding the problems of air leakage and air intake, and improving the sealing performance of the operation.

[0016] 2. The present invention is provided with a circular ring plate, a rotating rod, a pushing rod, a reset spring, a limit plate and a pushing block. The limit plate limits and guides the pushing rod. The reset spring can drive the pushing rod to drive the multiple pushing blocks above to automatically return to their original positions and approach each other to squeeze and seal the sealing rubber sleeve, thereby avoiding the problem that the sealing rubber sleeve is always open when the puncture needle has not entered, resulting in gas entering or leaking. When the puncture needle is pulled out, the sleeve can quickly return to its original position to achieve sealing. When the puncture needle is inserted into the sealing rubber sleeve, it will push the multiple pushing blocks above away from each other. The movement of the pushing block drives the rotating rod to rotate through the pushing rod. The rotation of the rotating rod drives the multiple pushing blocks below to approach each other through the pushing rod to clamp and squeeze the sealing rubber sleeve, thereby achieving further sealing and improving the sealing effect.

[0017] 3. The present invention is provided with an upper support airbag, a lower support airbag, an air supply pipe and a small air pump. The inflator and the small air pump are electrically connected to the control switch provided on the mounting shell through an external power supply. The inflator can inflate the upper support airbag, and at the same time the small air pump can inflate the lower support airbag through the air supply pipe. When the puncture outer tube is inserted into the patient's body, the upper support airbag and the lower support airbag are used in conjunction with each other to limit and fix the puncture outer tube itself, thereby preventing the puncture outer tube from falling off during operation. Compared with traditional threaded fixation, the airbag fixation effectively reduces the pulling and strain on the insertion incision, avoiding secondary damage to the wound.

[0018] 4. The present invention provides a rotating sleeve, which slides on the surface of the puncture outer tube to adjust the position of the upper support airbag, making it suitable for patients of different body shapes, such as fat and thin, to improve the stability of the fixation and avoid the problem of sliding up and down. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention; Figure 2 It is a schematic diagram of the explosion structure of the present invention; Figure 3 It is a partial structural cross-sectional schematic diagram of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the rotating sleeve of the present invention; Figure 5 Schematic diagram of the cross-sectional structure of the puncture needle of the present invention; Figure 6 This is a schematic structural diagram of the sealing assembly of the present invention; Figure 7 It is a schematic diagram of the partial structure of the sealing component of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the sliding rubber cylinder of the present invention.

[0020] Explanation of the accompanying drawings: 1. Mounting shell; 2. Puncture outer tube; 3. Drain pipe; 4. Endoscopic camera; 5. Sealing assembly; 501. Sliding rubber cylinder; 502. Push rod; 503. Limit rod; 504. Adaptive spring; 505. Push block; 506. Rotating rod; 507. Return spring; 508. Circular ring plate; 509. Sealing rubber sleeve; 510. Limit plate; 6. Fixing assembly; 601. Rotating sleeve; 602. Upper support airbag; 603. Lower support airbag; 604. Air pipe; 605. Small air pump; 7. Fixing block; 8. Puncture needle; 9. Connecting block; 10. Support rod. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1

[0023] Please see the attached Figure 1 and attached Figure 2 The embodiment of the present invention provides an anti-leakage puncture device with an annular airbag fixing structure, comprising: The mounting shell 1 has a row tube 3 installed on the side of the mounting shell 1, and a puncture outer tube 2 is fixed to the bottom of the mounting shell 1. The puncture outer tube 2 is provided with a fixing assembly 6, which includes an upper supporting airbag 602 and a lower supporting airbag 603. The upper supporting airbag 602 is provided with an inflator; an air supply pipe 604 is installed on the lower supporting airbag 603, and the air supply pipe 604 passes through the puncture outer tube 2 and is fixedly mounted on the mounting shell 1. A small air pump 605 connected to the air supply pipe 604 is fixed on the mounting shell 1; By setting up an upper support airbag 602, a lower support airbag 603, an air supply pipe 604 and a small air pump 605, the inflator and the small air pump 605 are electrically connected to the control switch set on the mounting shell 1 through an external power supply. The inflator can inflate the upper support airbag 602, and at the same time, the small air pump 605 can inflate the lower support airbag 603 through the air supply pipe 604. When the puncture outer tube 2 is inserted into the patient's body, the upper support airbag 602 and the lower support airbag 603 are used in conjunction with each other to limit and fix the puncture outer tube 2 itself, thereby preventing the puncture outer tube 2 from falling off during operation. Compared with traditional threaded fixation, the airbag fixation effectively reduces the pulling and strain on the insertion incision, avoiding secondary damage to the wound.

[0024] For details, please refer to the attached Figure 2 -Attached Figure 4A fixing block 7 is placed on the mounting shell 1, and a puncture needle 8 is installed at the bottom of the fixing block 7. A sealing assembly 5 is provided inside the mounting shell 1. The sealing assembly 5 includes a sealing rubber sleeve 509. The puncture needle 8 passes through the sealing rubber sleeve 509 and the puncture outer tube 2 and extends to the outside of the puncture outer tube 2; By setting up the sealing rubber sleeve 509, the sealing rubber sleeve 509 can be used to seal the puncture needle 8 without hindering the left and right swing adjustment position of the puncture needle 8. The sealing rubber sleeve 509 wraps the puncture needle 8, effectively avoiding the problems of air leakage and air intake, and improving the sealing of the operation.

[0025] For details, please refer to the attached Figure 2 -Attached Figure 4 The outer surface of the puncture outer tube 2 is provided with a sliding sleeve 601, and the upper support airbag 602 is fixedly mounted on the outer surface of the rotating sleeve 601; By setting up the rotating sleeve 601 and using the rotating sleeve 601 to slide on the surface of the puncture outer tube 2, the position of the upper support airbag 602 can be adjusted, which is convenient for use by patients of different body shapes, such as fat and thin, improving the stability of fixation and avoiding the problem of sliding up and down.

[0026] For details, please refer to the attached Figure 4 , the outer surface of the puncture outer tube 2 is provided with an external thread groove, and the inner wall of the rotating sleeve 601 is provided with an internal thread groove that cooperates with the external thread groove; By rotating the rotating sleeve 601, the height position of itself and the upper supporting airbag 602 on the surface of the puncture outer tube 2 can be adjusted. The internal thread on the inner wall of the rotating sleeve 601 cooperates with the external thread on the outer wall of the puncture outer tube 2, which can play a self-locking role for the rotating sleeve 601, further fix the position of the rotating sleeve 601, and effectively improve the stability of the rotating sleeve 601 and the upper supporting airbag 602.

[0027] For details, please refer to the attached Figure 2 and attached Figure 5 The interior of the puncture needle 8 is set to be hollow, and a transparent observation area is provided on the puncture needle 8, and an endoscopic camera 4 is provided inside the puncture needle 8; By providing the endoscopic camera 4, the internal condition of the patient's body can be easily viewed using the endoscopic camera 4. By providing the endoscopic camera 4 inside the tube of the puncture needle 8, there is no need to insert the endoscopic camera 4 separately, thereby improving the convenience of operation.

[0028] For details, please refer to the attached Figure 2 and attached Figure 5 , a support rod 10 is installed on the endoscope camera 4, a connecting block 9 is fixed to the top of the support rod 10, and a connecting groove for the connecting block 9 to be inserted is opened on the fixing block 7; By setting the support rod 10 and the connecting block 9, and using the connecting block 9 in conjunction with the connecting groove on the fixed block 7, the endoscopic camera 4 can be quickly installed and disassembled, which is convenient for replacing the endoscopic camera 4 in the future when damage occurs, without the need to replace the entire puncture needle 8.

[0029] For details, please refer to the attached Figure 2 , Attachment Figure 3 and attached Figure 5 The outer surface of the connecting block 9 is provided with a plurality of protruding limiting edges, and the fixing block 7 is provided with a limiting channel for the limiting edges to pass through.

[0030] Example 2

[0031] Since the sealing rubber sleeve 509 may not be able to quickly close and seal when the puncture needle or medical device is replaced or removed, leakage may occur. Therefore, based on the above embodiment, please refer to the attached Figure 2 , Attachment Figure 6 -Attached Figure 8 , and further improve it, namely: The sealing assembly 5 includes a sliding rubber cylinder 501 fixed to the outside of the sealing rubber sleeve 509, and two circular plates 508 are fixed to the outer surface of the sliding rubber cylinder 501. Two grooves are provided on the bottom circular plate 508 and a rotating rod 506 is rotatably installed in the groove. Push rods 502 are provided at both ends of the rotating rod 506. The end of the pushing rod 502 is hinged with a sliding rod, and the sliding rod is slidably arranged in a strip slideway provided on the rotating rod 506. A limiting plate 510 is fixed on the bottom circular plate 508, and the pushing rod 502 is slidably arranged on the limiting rod 503 and a pushing block 505 is fixed at the end of the pushing rod 502. A channel for the pushing block 505 to enter is provided on the sliding rubber cylinder 501, and a reset spring 507 is provided on the outer surface of the pushing rod 502. The two ends of the reset spring 507 are respectively fixedly mounted on the pushing block 505 and the limiting plate 510; By providing the annular plate 508, the rotating rod 506, the pushing rod 502, the return spring 507, the limiting plate 510 and the pushing block 505, the limiting plate 510 limits and guides the pushing rod 502, and the return spring 507 can drive the pushing rod 502 to drive the multiple pushing blocks 505 above to automatically return to their original positions, approach each other, and squeeze and seal the sealing rubber sleeve 509, thereby preventing the sealing rubber sleeve 509 from being in an open state when the puncture needle 8 is not inserted, resulting in gas ingress or leakage. When the puncture needle 8 is pulled out, the sealing rubber sleeve 509 can quickly return to its original position to achieve sealing. Furthermore, when the puncture needle 8 is inserted into the sealing rubber sleeve 509, it will push the multiple pushing blocks 505 above away from each other. The movement of the pushing block 505 drives the rotating rod 506 to rotate through the pushing rod 502. The rotation of the rotating rod 506 drives the multiple pushing blocks 505 below to move closer to each other through the pushing rod 502 to clamp and squeeze the sealing rubber sleeve 509, thereby achieving further sealing work and improving the sealing effect.

[0032] For details, please refer to the attached Figure 2 , Attachment Figure 6 -Attached Figure 8 , a plurality of limiting rods 503 are fixedly installed inside the mounting shell 1, and the annular plate 508 is slidably arranged on the outer surface of the plurality of limiting rods 503; By setting a limit rod 503, the limit rod 503 can be used to vertically limit and guide the annular plate 508, making it easy to adjust the height position of the puncture rod and avoid close fit with the sealing rubber sleeve 509, which makes it difficult for the puncture rod to move up and down. At the same time, the annular plate 508 is flexibly connected to the sliding rubber cylinder 501 to avoid affecting the left and right swinging of the sliding rubber cylinder 501.

[0033] For details, please refer to the attached Figure 6 , the outer surface of the limiting rod 503 is provided with an adaptable spring 504, and the two ends of the adaptable spring 504 are respectively fixedly mounted on the inner wall of the mounting shell 1 and the circular plate 508; By setting the adaptive spring 504, the adaptive spring 504 provides a certain supporting force for the circular plate 508 when it moves downward, which facilitates better control of the operating force and facilitates the circular plate 508 and the sliding rubber cylinder 501 to quickly move upward back to their original positions and away from the operating position.

[0034] Working principle: Insert the puncture outer tube 2 into the patient's body through the incision, and control the inflator by controlling the switch to inflate the upper support airbag 602. The small air pump 605 can inflate the lower support airbag 603 through the air pipe 604. Rotate the rotating sleeve 601. The internal thread on the inner wall of the rotating sleeve 601 matches the external thread on the outer wall of the puncture outer tube 2. The rotating sleeve 601 moves up and down on the surface of the puncture outer tube 2 to adjust the height position of the upper support airbag 602 on the surface of the puncture outer tube 2. Adjust the upper support airbag 602 and the lower support airbag 603 to be fixed above and below the patient's skin to achieve the fixation of the position of the puncture outer tube 2. Insert the puncture needle 8 into the sealing rubber sleeve 509. When the puncture needle 8 is inserted into the sealing rubber sleeve 509, it will push the multiple pushing blocks 505 above to move away from each other. The movement of the pushing block 505 drives the rotating rod 506 to rotate through the pushing rod 502. The rotation of the rotating rod 506 drives the multiple pushing blocks 505 below to move closer to each other through the pushing rod 502 to clamp and squeeze the sealing rubber sleeve 509 to achieve sealing. The operation can be carried out in cooperation with the endoscopic camera 4 set inside the puncture needle 8.

[0035] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A leak-proof puncture device with an annular airbag fixing structure, characterized in that: include: A mounting shell (1), wherein a row tube (3) is mounted on the side of the mounting shell (1), and a puncture outer tube (2) is fixed to the bottom of the mounting shell (1), and a fixing assembly (6) is provided on the puncture outer tube (2), and the fixing assembly (6) comprises an upper supporting air bag (602) and a lower supporting air bag (603), and an inflator is provided on the upper supporting air bag (602); an air delivery pipe (604) is mounted on the upper portion of the lower supporting air bag (603), and the air delivery pipe (604) passes through the puncture outer tube (2) and is fixedly mounted on the mounting shell (1); and a small air pump (605) connected to the air delivery pipe (604) is fixed on the mounting shell (1); A fixing block (7) is placed on the mounting shell (1), a puncture needle (8) is installed at the bottom of the fixing block (7), a sealing assembly (5) is provided inside the mounting shell (1), the sealing assembly (5) includes a sealing rubber sleeve (509), and the puncture needle (8) passes through the sealing rubber sleeve (509) and the puncture outer cylinder (2) and extends to the outside of the puncture outer cylinder (2).

2. The leak-proof puncture device with an annular airbag fixing structure according to claim 1, characterized in that: The sealing assembly (5) includes a sliding rubber cylinder (501) fixed to the outside of the sealing rubber sleeve (509), two annular plates (508) are fixed on the outer surface of the sliding rubber cylinder (501), two grooves are provided on the bottom annular plate (508) and a rotating rod (506) is rotatably installed in the groove, a push rod (502) is provided at both ends of the rotating rod (506), the end of the pushing rod (502) is hinged with a sliding rod, and the sliding rod is slidably arranged in a strip slideway provided on the rotating rod (506), a limiting plate (510) is fixed on the bottom annular plate (508), the pushing rod (502) is slidably arranged on the limiting rod (503) and a pushing block (505) is fixed at the end of the pushing rod (502), and a channel for the pushing block (505) to enter is provided on the sliding rubber cylinder (501).

3. The leak-proof puncture device with an annular airbag fixing structure according to claim 2, characterized in that: The outer surface of the push rod (502) is sleeved with a return spring (507), and the two ends of the return spring (507) are fixedly mounted on the push block (505) and the limit plate (510), respectively.

4. The leak-proof puncture device with an annular airbag fixing structure according to claim 2, characterized in that: A plurality of limiting rods (503) are fixedly mounted inside the mounting shell (1), and the annular plate (508) is slidably arranged on the outer surfaces of the plurality of limiting rods (503).

5. The leak-proof puncture device with an annular airbag fixing structure according to claim 4, characterized in that: An adaptable spring (504) is sleeved on the outer surface of the limiting rod (503), and two ends of the adaptable spring (504) are fixedly mounted on the inner wall of the mounting shell (1) and the annular plate (508), respectively.

6. The leak-proof puncture device with an annular airbag fixing structure according to claim 1, characterized in that: The outer surface sliding sleeve of the puncture outer cylinder (2) is provided with a rotating sleeve (601), and the upper supporting airbag (602) is fixedly mounted on the outer surface of the rotating sleeve (601).

7. The leak-proof puncture device with an annular airbag fixing structure according to claim 6, characterized in that: An external thread groove is provided on the outer surface of the puncture outer cylinder (2), and an internal thread groove used in conjunction with the external thread groove is provided on the inner wall of the rotating sleeve (601).

8. The leak-proof puncture device with an annular airbag fixing structure according to claim 1, characterized in that: The interior of the puncture needle (8) is configured to be hollow, and a transparent observation area is provided on the puncture needle (8). An endoscopic camera (4) is provided inside the puncture needle (8).

9. The leak-proof puncture device with an annular airbag fixing structure according to claim 8, characterized in that: A support rod (10) is installed on the endoscope camera head (4), a connecting block (9) is fixed to the top end of the support rod (10), and a connecting groove for the connecting block (9) to be inserted is provided on the fixing block (7).

10. The leak-proof puncture device with an annular airbag fixing structure according to claim 9, characterized in that: The outer surface of the connecting block (9) is provided with a plurality of protruding limiting edges, and the fixing block (7) is provided with limiting channels for the limiting edges to pass through.

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