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CN-122005980-A - Minimally invasive pneumothorax drainage tube

CN122005980ACN 122005980 ACN122005980 ACN 122005980ACN-122005980-A

Abstract

The application relates to a minimally invasive pneumothorax drainage tube, which belongs to the technical field of medical instruments and comprises a hollow tube body and a puncture guide core arranged in the hollow tube body, wherein a top hole and a side drainage hole are formed in the hollow tube body, a fixed air bag is wrapped on the outer side of the tube wall of the hollow tube body, a capillary tube is connected to the fixed air bag, a one-way valve used for connecting the capillary tube is arranged at the end part of the capillary tube, the fixed air bag is movably arranged on the hollow tube body, the fixed air bag moves along the axis direction of the hollow tube body, the minimally invasive pneumothorax drainage tube further comprises a first fixing piece, the first fixing piece is used for fixing the fixed air bag on the hollow tube body after the fixed air bag moves to a required position, the capillary tube is spirally wound on the hollow tube body, and an unreeling piece is arranged on the hollow tube body and is used for stop reading the capillary tube to be adapted to the position of the fixed air bag on the hollow tube body. The application has the effect of improving the fitting degree of the drainage tube.

Inventors

  • XIE XINZHENG
  • DU WEI
  • Luo Songdi

Assignees

  • 常州市康心医疗器械有限公司

Dates

Publication Date
20260512
Application Date
20260411

Claims (10)

  1. 1. The minimally invasive pneumothorax drainage tube is characterized by comprising a hollow tube body (1) and a puncture guide core (2) arranged in the hollow tube body (1), wherein a top hole (3) and a side drainage hole (4) are formed in the hollow tube body (1), a fixed air bag (5) is coated on the outer side of the tube wall of the hollow tube body (1), a capillary tube (6) is connected onto the fixed air bag (5), and a one-way valve (7) for connecting the capillary tube (6) is arranged at the end part of the capillary tube (6); The fixing air bag (5) is movably arranged on the hollow pipe body (1), the fixing air bag (5) moves along the axial direction of the hollow pipe body (1), and the fixing air bag further comprises a first fixing piece (8), wherein the first fixing piece (8) is used for fixing the fixing air bag (5) on the hollow pipe body (1) after the fixing air bag (5) moves to a required position; the capillary tube (6) is spirally wound on the hollow tube body (1), an unreeling piece (9) is arranged on the hollow tube body (1), and the unreeling piece (9) is used for stop reading the capillary tube (6) and is adapted to the position of the fixed air bag (5) on the hollow tube body (1).
  2. 2. The minimally invasive pneumothorax drainage tube of claim 1, wherein the first fixing piece (8) comprises rubber rings (81) arranged at two ends of the fixing air bag (5), the capillary tube (6) penetrates through the rubber rings (81) and enters between the fixing air bag (5) and the hollow tube body (1), the rubber rings (81) are in sealing connection with the fixing air bag (5), the first fixing piece (8) further comprises fixing grooves (82) formed in the hollow tube body (1), the fixing grooves (82) are annular and perpendicular to the axis direction of the hollow tube body (1), the fixing grooves (82) are formed in a plurality of and are uniformly distributed along the axis direction of the hollow tube body (1), and the rubber rings (81) are sleeved in the fixing grooves (82).
  3. 3. The minimally invasive pneumothorax drainage tube of claim 2, wherein the two side walls of the fixing groove (82) are concavely formed with a sealing space (83) towards the inside, the vertical section of the sealing space (83) is triangular, the bottom of the sealing space (83) is flush with the bottom wall of the fixing groove (82), the rubber ring (81) slides into the sealing space (83) to be abutted against the bottom surface and the inclined surface of the sealing space (83), and the rubber ring (81) is compressed with the rubber ring (81) entering the sealing space (83) along with the injection of air of the fixing air bag (5) so as to be in sealing connection with the hollow tube body (1).
  4. 4. The minimally invasive pneumothorax drainage tube of claim 3, wherein the corner end of the sealing space (83) is provided with an arc chamfer, and the inner wall of the fixed air bag (5) is abutted against the arc chamfer.
  5. 5. The minimally invasive pneumothorax drainage tube of claim 2, wherein two side walls of the fixing groove (82) are obliquely arranged towards the outer side, a plurality of sealing grooves (84) are formed in the inclined side walls of the fixing groove (82), the sealing grooves (84) are annular, the plurality of sealing grooves (84) are coaxially arranged with the hollow tube body (1), and the diameter of the sealing grooves (84) is gradually increased.
  6. 6. The minimally invasive pneumothorax drainage tube of claim 2, wherein the hollow tube body (1) is provided with a cover film (10), the cover film (10) is used for covering an opening of the fixing groove (82), the cover film (10) is provided with an easy-tearing seam (11), the easy-tearing seam (11) is connected end to end and is annular, and a plane where the easy-tearing seam (11) is located is perpendicular to the axis direction of the hollow tube body (1).
  7. 7. The minimally invasive pneumothorax drainage tube of claim 1, wherein the unreeling piece (9) comprises an unreeling disc (91), the unreeling disc (91) is rotatably arranged on the hollow tube body (1), one side, close to the one-way valve (7), of the capillary tube (6) penetrates through the unreeling disc (91), the unreeling disc (91) takes the axis of the hollow tube body (1) as a rotation axis, and the unreeling piece (9) further comprises a second fixing piece, wherein the second fixing piece is used for fixing the unreeling disc (91) after the capillary tube (6) is unreeled for a required length.
  8. 8. The minimally invasive pneumothorax drainage tube of claim 7, wherein the reel (91) comprises a first circular ring (911) and a second circular ring (912), the first circular ring (911) is sleeved and fixed on the hollow tube (1), the second circular ring (912) is sleeved and connected on the first circular ring (911), the second circular ring (912) is rotatably arranged on the first circular ring (911), the capillary tube (6) penetrates through the second circular ring (912), the second fixing piece comprises a fixing rod (92) arranged on the first circular ring (911) in a sliding manner and a fixing ring arranged on the second circular ring (912), the fixing rod (92) is positioned in a space where the fixing ring is positioned, the inner ring of the fixing ring is provided with an annular rack (93), and the fixing rod (92) is slidably inserted and connected in teeth of the annular rack (93) in a sliding manner, and the minimally invasive pneumothorax drainage tube further comprises a driving piece for driving the fixing rod (92) to be slidably clamped with the annular rack (93).
  9. 9. The minimally invasive pneumothorax drainage tube of claim 8, wherein the driving piece comprises a driving spring (94) sleeved on the fixing rod (92), one end of the driving spring (94) is fixedly arranged on the fixing rod (92), the other end of the driving spring is fixedly arranged on the first circular ring (911), and the driving spring (94) is used for driving the fixing rod (92) to move towards the direction of the annular rack (93).
  10. 10. The minimally invasive pneumothorax drainage tube of claim 1, wherein the fixed air bag (5) is tightly attached to the outer wall of the hollow tube body (1) when the fixed air bag (5) is in a contracted state.

Description

Minimally invasive pneumothorax drainage tube Technical Field The application relates to the technical field of medical instruments, in particular to a minimally invasive pneumothorax drainage tube. Background Pneumothorax is a condition where air enters the pleural cavity, resulting in intra-thoracic air accumulation. The clinical treatment usually adopts a thoracic closed drainage technique, namely, the gas or liquid in the thoracic cavity is discharged through an imbedded drainage tube. At present, patent document with the publication number of CN102580172A discloses a minimally invasive pneumothorax drainage tube, which comprises a hollow tube body and a puncture guide core arranged through the hollow tube body, wherein one end of the hollow tube body is provided with a top hole for the tip of the puncture guide core to pass through and for drainage, the tube wall of the hollow tube body adjacent to the top hole is provided with a plurality of side drainage holes, the other end of the hollow tube body is provided with a conical joint for the tail end of the puncture guide core to pass through and for externally connecting a drainage device, a spiral anti-bending steel wire is arranged in the tube wall between the top hole and the conical joint of the hollow tube body, a fixed air bag for wrapping the tube wall is arranged outside the tube wall in the middle of the hollow tube body, the fixed air bag is connected with a capillary tube, and the capillary tube extends in the tube wall of the hollow tube body between the fixed air bag and the conical joint and is led out from the tube wall near the conical joint, and is further connected to a one-way valve. However, the fixed air bag plays a role in fixing the hollow tube body, but the position of the fixed air bag cannot be adapted to different patients aiming at different patients, so that the adaptation degree of the drainage tube is low. Disclosure of Invention In order to improve the fitting degree of the drainage tube, the application provides a minimally invasive pneumothorax drainage tube. The application provides a minimally invasive pneumothorax drainage tube which adopts the following technical scheme: the minimally invasive pneumothorax drainage tube comprises a hollow tube body and a puncture guide core arranged in the hollow tube body, wherein a top hole and a side drainage hole are formed in the hollow tube body, a fixed air bag is wrapped on the outer side of the tube wall of the hollow tube body, a capillary tube is connected to the fixed air bag, and a one-way valve for connecting the capillary tube is arranged at the end part of the capillary tube; the fixed air bag is movably arranged on the hollow pipe body, and the fixed air bag moves along the axis direction of the hollow pipe body and further comprises a first fixing piece, wherein the first fixing piece is used for fixing the fixed air bag on the hollow pipe body after the fixed air bag moves to a required position; the capillary is spirally wound on the hollow tube body, an unreeling piece is arranged on the hollow tube body and is used for stop reading the capillary to be adapted to the position of the fixed air bag on the hollow tube body. Optionally, the first mounting is including setting up the rubber circle at fixed gasbag both ends, the capillary passes the rubber circle and gets into between fixed gasbag and the hollow body, rubber circle and fixed gasbag sealing connection, the first mounting is still including seting up the fixed slot on the hollow body, the fixed slot is annular and the axis direction of perpendicular to hollow body, a plurality of and evenly arranging along the axis direction of hollow body have been seted up to the fixed slot, the rubber circle cup joints in the fixed slot. Optionally, two lateral walls of fixed slot all have sealed space towards inside indent shaping, sealed space's vertical section is triangle-shaped, sealed space bottom flushes with fixed tank bottom wall, the rubber circle slides in getting into sealed space and butt in sealed space bottom surface and inclined plane to inject the rubber circle compression and make rubber circle and hollow body sealing connection in the sealed space to the air along with fixed gasbag. Optionally, the arc chamfer has been seted up to the corner end in sealed space, fixed gasbag inner wall butt arc chamfer. Optionally, two lateral walls of fixed slot set up towards outside slope, a plurality of seal grooves have been seted up to the lateral wall of fixed slot slope, the seal groove is the annular, and a plurality of seal grooves and the coaxial setting of hollow body and the diameter of seal groove increase gradually. Optionally, be provided with the cover film on the hollow body, the cover film is used for covering the opening of fixed slot, be provided with easy tear seam on the cover film, easy tear seam head and tail connection is annular and easy tear seam place plane perpendicular to the axis di