CN113616296A

CN113616296A - Puncture tube assembly comprising side fasteners and use method thereof

Info

Publication number: CN113616296A
Application number: CN202110934476.2A
Authority: CN
Inventors: 曾国庆
Original assignee: Chongqing Chengyi Technology Co ltd
Current assignee: Chongqing Chengyi Technology Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-11-09
Also published as: CN111938773B; CN111938773A

Abstract

The invention discloses a puncture tube assembly comprising a side fastener, which comprises a sealing assembly and a hollow tube assembly; the seal assembly comprises a first seal assembly and a second seal assembly; the second seal comprising a second capsule comprising a capsule proximal end and a capsule distal end and a wall portion extending therebetween, wherein: the near end of the hollow pipe assembly is connected with the far end of the bin body to form sealing; the hollow pipe assembly comprises a fixed pipe, a movable pipe, a side fastener and a film pipe; the fixed tube comprises a fixed tube proximal end, a fixed tube distal end and a fixed tube wall extending therebetween; the movable tube comprises a movable tube proximal end, a movable tube distal end and a movable tube wall extending therebetween; the movable pipe is installed in the fixed pipe.

Description

Puncture tube assembly comprising side fasteners and use method thereof

The application is named as: a hollow tube assembly for laparoscopic surgery including side fasteners, having a tubular body comprising: the application number is as follows, on the day 17 of 08 months in 2020: 202010825822.9 patent application for inventions.

Technical Field

The invention relates to minimally invasive surgical instruments, in particular to a puncture tube assembly comprising a side fastener and a using method thereof.

Background

A puncture instrument is a surgical instrument used in minimally invasive surgery (especially hard-tube endoscopic surgery) for establishing an artificial passage into a body cavity. Typically consisting of a spike assembly and a spike. The general clinical use mode is as follows: a small opening is cut on the skin of a patient, the puncture needle penetrates through the puncture tube assembly, and then the puncture needle penetrates through the abdominal wall through the skin opening to enter a body cavity. Once inside the body cavity, the needle is removed, leaving the puncture tube assembly as a passage for instruments into and out of the body cavity.

In the hard tube laparoscopic surgery, a pneumoperitoneum machine is usually adopted to continuously perfuse gas (such as carbon dioxide gas) into the abdominal cavity of a patient and maintain a stable gas pressure (about 13-15 mmHg) so as to obtain a sufficient operation space. The puncture tube assembly typically consists of a hollow tube, a housing, a sealing membrane (also known as an instrument seal) and a zero seal (also known as a self-seal). The puncture tube assembly penetrates from the outside of the body cavity to the inside of the body cavity and is used as a passage for instruments to enter and exit the body cavity. The housing connects the hollow tube, zero seal and sealing membrane into a sealed system. The zero seal generally does not provide a seal for the inserted instrument, but automatically closes and forms a seal when the instrument is removed. The sealing membrane grips the instrument and forms a seal as the instrument is inserted.

When the puncture tube assembly is secured to the abdominal wall of a patient, the hollow tube thereof may be divided into an extracorporeal section (length H1), a body wall section (length H2) and an intracorporeal section (length H3). The length H2 of the body wall segment varies, and when applied to different patients, the abdominal wall thickness varies from patient to patient, e.g., the difference between obese patients and the smaller abdominal wall thickness is greater; the wall section H2 varies for different puncture positions and puncture angles even when used with the same patient. The length H1 of the extracorporeal section cannot be reserved too long or too short, which is inconvenient for inserting the instrument, and especially when the puncture tube component is used as a main operation hole and needs to be repeatedly switched, the puncture tube component is too short which is inconvenient for operating the instrument at different inclination angles. The length H3 of the in-vivo section is not changed greatly generally, and is reserved for 20-30 mm. The length of the hollow tube of the puncture tube assembly in the prior art is fixed, and the requirements of different scene in the field cannot be met.

Disclosure of Invention

In one aspect of the invention, a hollow tube assembly for laparoscopic surgery comprising a side fastener is provided, comprising a stationary tube, a movable tube and a side fastener. The fixation tube includes a fixation tube proximal end and a fixation tube distal end and a fixation tube wall extending therebetween, the fixation tube wall defining a first hollow channel. The movable tube comprises a movable tube proximal end, a movable tube distal end and a movable tube wall extending therebetween, the movable tube wall defining a second hollow channel; the movable pipe is installed in the fixed pipe, and the size and the shape of the periphery of the wall of the movable pipe are matched with those of the second hollow channel. The fixing tube also comprises a side through groove, and the side through groove extends from the near end adjacent area of the fixing tube to the far end adjacent area of the fixing tube; the hollow pipe assembly also comprises a side fastener matched with the side through groove in shape and size; the side fastener is arranged in the side through groove and is in contact with the movable pipe wall, and the side fastener can move in the side through groove along the radial direction of the fixed pipe.

In one scheme, the movable pipe wall comprises a plurality of outer surface anti-skid lines which are uniformly distributed along the axial direction of the movable pipe wall; the side fastener includes a side fastener proximal end and a side fastener distal end and a side fastener wall extending therebetween, the side fastener wall including an inner surface non-slip pattern matching the outer surface non-slip pattern.

In yet another aspect, the hollow tube assembly further comprises a thin film tube comprising a thin film tube proximal end and a thin film tube distal end and a thin film tube wall extending therebetween, the thin film tube wall defining a third hollow channel; the thin film tube wall wraps the outer surfaces of the fixing tube and the side fastener and forms air seal with the fixing tube and the side fastener, and air in the fixing tube is prevented from leaking to the outside through the side through groove.

In yet another aspect, the film tube is flexible and resilient, and forms a hoop force against the side fastener walls to force the side fasteners along the side channels toward the interior of the mounting tube, thereby engaging the outer surface non-slip pattern with the inner surface non-slip pattern.

In another scheme, the movable pipe is axially moved relative to the fixed pipe by applying an axial force to the movable pipe, and the inner surface anti-slip patterns can push the outer surface anti-slip patterns outwards to force the thin film pipe to deform, so that the side fastening pieces move towards the outside of the fixed pipe along the side through grooves until the outer surface anti-slip patterns and the inner surface anti-slip patterns are separated from each other; and canceling the axial force, wherein the film pipe is elastically restored, and the side fastener is forced to move towards the inside of the fixed pipe along the side through groove, so that the outer surface anti-skid grains and the inner surface anti-skid grains are meshed with each other.

In another scheme, the lock assembly is arranged on the outer surface of the fixed pipe and wraps the periphery of the fixed pipe and the side fasteners; the lock assembly includes an unlocked state and a locked state. In a locking state, the lock assembly applies enough extrusion force to the side fastener to limit the side fastener to move towards the outside of the fixed pipe along the side through groove, so that the outer surface anti-skid grains and the inner surface anti-skid grains are kept in a meshed state; in the unlocking state, the lock assembly is arranged on the periphery of the fixed pipe and the side fastener, and the extrusion force to the side fastener is not generated; the lock assembly is axially movable along the stationary tube in the unlocked state.

In another aspect, the lock assembly includes a lock body and a resilient arm; the inner hole defined by the lock catch main body is matched with the outer diameter of the fixed pipe, the first end of the lock catch main body comprises a lock catch limiting step, and the second end of the lock catch main body is connected with the first end of the elastic arm; the second end of the elastic arm comprises a lock catch step surface; the elastic arm can elastically rotate and swing around the first end of the elastic arm; the lock assembly comprises a fixed pipe, a side fastener, a lock piece and a lock piece, wherein the pipe wall of the lock piece is wrapped on the periphery of the fixed pipe and the side fastener; in a locked state, the lock catch step surface and the lock catch limiting step are mutually occluded and fixed, the elastic arm applies enough extrusion force to the side fastener to limit the side fastener to move towards the outside of the fixed pipe along the side through groove, so that the outer surface anti-skid grains and the inner surface anti-skid grains are kept in an engaged state; in an unlocking state, the lock catch step surface and the lock catch limiting step are separated from each other, and the elastic arm does not generate extrusion force on the side fastener; the lock assembly is axially movable along the stationary tube in the unlocked state. In yet another aspect, a puncture tube assembly comprises a hollow tube assembly as described in any of the preceding claims, further comprising a sealing assembly, wherein the proximal end of the hollow tube assembly is connected to the distal end of the sealing assembly and forms a gas tight seal.

In one aspect of the invention, a puncture tube assembly is provided, comprising a seal assembly and a hollow tube assembly; the seal assembly comprises a first seal assembly and a second seal assembly; the second seal comprises a second capsule comprising a proximal capsule end and a distal capsule end and a wall portion extending therebetween. The near end of the hollow pipe component is connected with the far end of the bin body to form sealing. The hollow tube assembly comprises a fixed tube, a movable tube, a side fastener and a film tube. The fixed tube comprises a fixed tube proximal end, a fixed tube distal end and a fixed tube wall extending therebetween; the movable tube comprises a movable tube proximal end, a movable tube distal end and a movable tube wall extending therebetween; the movable pipe is installed in the fixed pipe. The fixing tube also comprises a side through groove, and the side through groove extends from the near end adjacent area of the fixing tube to the far end adjacent area of the fixing tube; the hollow pipe assembly also comprises a side fastener matched with the side through groove in shape and size; the side fastener is arranged in the side through groove and is in contact with the movable pipe wall, and the side fastener can move in the side through groove along the radial direction of the fixed pipe. The hollow tube assembly further comprises a thin film tube comprising a thin film tube proximal end and a thin film tube distal end with a thin film tube wall extending therebetween; the thin film tube wall is wrapped on the outer surfaces of the fixing tube and the side fastener and forms air seal with the fixing tube and the side fastener.

In another scheme, the far end of the thin film tube comprises a thin film tube sealing hole, and the thin film tube sealing hole can form air seal with the anti-skid lines on the outer surface; the inner side of the distal end of the fixed tube comprises a chamfer.

In another scheme, the lock assembly comprises a lock body, a lever handle and a limiting block, wherein the lever handle and the limiting block extend from two ends of the lock body; the locking piece body is formed into a locking piece hole through prefabricated curling, and the locking piece forms inward curled locking force.

In another scheme, the size of the lock piece hole is smaller than the size of the outer circle of the fixed pipe, and the lock assembly comprises a natural state, a locking state and an unlocking state; in a natural state, the handles and the limiting blocks at the two ends of the locking piece body are limited in a staggered mode by the inward curling force of the locking piece body; in a locking state, the lock assembly is wrapped on the outer surfaces of the fixed pipe and the side cover plate, the inward curling force of the lock body applies enough extrusion force to the side fastener, the side fastener is limited to move towards the outside of the fixed pipe along the side through groove, and the outer surface anti-skid grains and the inner surface anti-skid grains are kept in a meshed state; thereby limiting the rotation or axial movement displacement between the movable pipe and the fixed pipe; in the unlocking state, the two lever handles are pressed, so that the locking piece hole can be enlarged, the locking piece body does not generate extrusion force on the side fastener, at the moment, axial force can be applied to the movable pipe to force the movable pipe to axially move relative to the fixed pipe, and meanwhile, the lock assembly can axially move along the fixed pipe; when the two lever handles are released, the lock body is restored to form a locking state, and the inward curling force of the lock body exerts enough extrusion force on the opposite side fasteners to limit the side fasteners to move towards the outside of the fixed pipe along the side through grooves, so that the outer surface anti-skid grains and the inner surface anti-skid grains are kept in a meshed state; thereby limiting the rotation or axial movement displacement between the movable tube and the fixed tube.

In one aspect of the invention, a puncture tube assembly comprising a fixed tube and a movable tube comprises a sealing assembly and a hollow tube assembly; the seal assembly comprises a first seal assembly and a second seal assembly; the second seal comprises a second capsule comprising a proximal capsule end and a distal capsule end and a wall portion extending therebetween. The near end of the hollow pipe component is connected with the far end of the bin body to form sealing. The hollow tube assembly comprises a fixed tube and a movable tube. The fixed tube comprises a fixed tube proximal end, a fixed tube distal end and a fixed tube wall extending therebetween; the first limiting groove and the second limiting groove extend from the adjacent area of the near end of the fixed pipe to the far end of the fixed pipe, and cut off the fixed pipe wall and the far end of the fixed pipe to form a first part of fixed pipe wall and a second part of fixed pipe wall; the first limiting groove comprises first anti-skid racks along two axial side surfaces of the fixed pipe; the second limiting groove comprises second anti-skid racks along two axial side faces of the fixed pipe. The movable tube comprises a movable tube proximal end, a movable tube distal end and a movable tube wall extending therebetween, the outer surface of the movable tube proximal end comprises a first outer projection and a second outer projection, and the movable tube wall defines a second hollow channel; the first outer cam includes first drive teeth along both sides of the movable tube and the second outer cam includes second drive teeth along both sides of the movable tube. The movable pipe is arranged inside the fixed pipe, the first outer convex block is arranged in the first limiting groove, and the first driving tooth is matched and meshed with the first anti-skid rack; the second outer convex block is arranged in the second limiting groove, and the second driving tooth is meshed with the second anti-skid rack in a matching mode.

In one embodiment, the hollow tube assembly further comprises a thin film tube, wherein the thin film tube comprises a thin film tube proximal end, a thin film tube distal end and a thin film tube wall extending therebetween, and the thin film tube wall is wrapped outside the fixed tube and forms a hermetic seal with the fixed tube, so that gas in the fixed tube is prevented from leaking to the outside of the fixed tube through the first limiting groove and the second limiting groove.

In another embodiment, the thin film tube has flexibility and elasticity, and the first and second fixed tube walls have elasticity.

In another scheme, the first and second anti-skid racks comprise a plurality of anti-skid teeth which are uniformly distributed along the axial direction of the fixed pipe; the movable pipe is axially stressed, the driving teeth interact with the anti-skid teeth to force the first part of the fixed pipe wall and the second part of the fixed pipe wall to be separated from each other and elastically deformed, so that the first driving teeth axially slide along the first anti-skid racks, and the second driving teeth axially slide along the second anti-skid racks; continued application of an axial force to the movable tube may force the movable tube to move axially relative to the stationary tube.

In yet another aspect, the distal end of the thin film tube includes a thin film tube sealing aperture that forms a hermetic seal with the outer surface of the movable tube.

In still another scheme, the lock assembly is arranged on the outer surface of the fixed pipe and wraps the periphery of the fixed pipe; the lock assembly includes an unlocked state and a locked state; in the locking state, the lock assembly applies enough extrusion force to the fixed pipe to force the fixed pipe to contract and deform, so that the first driving tooth and the first anti-skid rack are kept in the meshed state, and the second driving tooth and the second anti-skid rack are kept in the meshed state; thereby limiting the rotation or axial movement displacement between the movable pipe and the fixed pipe; under the unlocking state, the lock assembly is wrapped on the outer surface of the fixed pipe, the extrusion force on the fixed pipe is not generated, and the lock assembly can axially move along the fixed pipe under the unlocking state.

In one aspect of the present invention, a puncture instrument is provided that includes a puncture tube assembly and a puncture needle extending through the puncture tube assembly.

Drawings

For a fuller understanding of the nature of the present invention, reference should be made to the following detailed description taken together with the accompanying figures in which:

FIG. 1 is an exploded view of a seal assembly 2;

FIG. 2 is a cross-sectional view of the seal assembly 2;

FIG. 3 is a cross-sectional view of the seal assembly 2 at 90 from FIG. 2;

fig. 4 is an exploded view of the hollow tube assembly 3;

FIG. 5 is a perspective view of a stationary tube 500;

FIG. 6 is a perspective view of the movable tube 600;

fig. 7 is a side view of the fitting assembly of the stationary pipe 500 and the movable pipe 600;

FIG. 8 is an enlarged view of 8-8 of FIG. 7;

FIG. 9 is a cross-sectional view of the thin film tube 50;

FIG. 10 is a perspective view of the spike assembly 1;

fig. 11 is a perspective view of the lock assembly 800;

fig. 12 is an exploded view of the hollow tube assembly 3 a;

FIG. 13 is a perspective view of stationary tube 500 a;

fig. 14 is a perspective view of the movable tube 600 a;

fig. 15 is a perspective view of the side fastener 700;

FIG. 16 is an enlarged view of 16-16 of FIG. 18;

figure 17 is a side view of hollow tube assembly 3 a;

FIG. 18 is a cross-sectional view taken at 18-18 of FIG. 17;

FIG. 19 is a schematic view of the lock assembly 900 in an unlocked state;

FIG. 20 is a schematic view of the lock assembly 900 in a locked state;

FIG. 21 is a perspective view of the puncture tube assembly 1 a;

the same reference numbers will be used throughout the drawings to refer to identical or similar parts or elements.

Detailed Description

Embodiments of the present invention are disclosed herein, however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which can be embodied in various forms. Therefore, the disclosure herein is not to be interpreted as limiting, but merely as a basis for the claims and as a basis for teaching one skilled in the art how to employ the present invention. Embodiments of the present disclosure will now be described in detail with reference to the drawings, where for convenience, the party proximal to the operator is defined as the proximal end and the party distal from the operator is defined as the distal end.

Figures 1-13 depict a puncture tube assembly 1 for use in laparoscopic procedures. The spike assembly 1 comprises a sealing assembly 2 and a hollow tube assembly 3. Fig. 1-3 depict the structure and composition of the seal assembly 2. The seal assembly 2 may be divided into a first seal assembly 100 and a second seal assembly 200. The first seal assembly 100 is also referred to as an instrument seal assembly, and when an external instrument is inserted, the central bore of the first seal assembly grips the instrument to form an air tight seal. The second sealing assembly is also called a zero sealing assembly, when an external instrument is not inserted, the zero sealing assembly automatically closes to form sealing, when the external instrument is inserted, the zero sealing assembly opens, and no sealing is formed between the zero sealing assembly and the instrument. The locking groove 239 of the component 200 and the locking hook 112 of the component 100 are fastened in a matching manner. The hook 112 and the slot 239 can be quickly detached by one hand. The connection between the assembly 100 and the assembly 200 is implemented in a variety of ways. Besides the structure shown in the embodiment, the structure can also adopt a threaded connection, a rotary buckle or other quick locking structures. Alternatively, the assembly 100 and the assembly 200 may be designed in a configuration that is not quickly detachable.

Fig. 4 to 10 depict the structure and composition of the hollow tube assembly 3, the hollow tube assembly 3 including a fixed tube 500, a movable tube 600 and a thin film tube 50. Fig. 5 depicts the structure and composition of the mounting tube 500. The fixation tube 500 includes a fixation tube proximal end 510 and a fixation tube distal end 530 with a fixation tube wall 520 extending therebetween. The fixed tube wall 520 defines a first hollow channel 521. The first and second retaining

grooves

551, 555 cut the fixed tube wall 520 and the fixed tube distal end 530 apart, forming a first portion of the fixed tube wall 561 and a second portion of the fixed tube wall 562. The first restraint slot 551 includes a first axial restraint slot 552 and a first circumferential undercut slot 554, and the second restraint slot 555 includes a second axial restraint slot 556 and a second circumferential undercut slot 558. The first and second circumferential undercut grooves facilitate adjustment of the overall deflection elastic deformation force of the first portion of the fixed tube wall 561 and the second portion of the fixed tube wall 562. As shown in fig. 6, the first axial direction limiting groove 552 of the first limiting groove 551 includes first anti-slip racks 570 on both side surfaces along the axial direction of the fixing tube; the second axial limiting groove 556 of the second limiting groove 555 comprises second anti-skid racks 580 along two sides of the fixing tube in the axial direction. The first anti-slip rack 570 comprises a plurality of anti-slip teeth 571 uniformly distributed along the axial direction of the fixed pipe, and each anti-slip tooth 571 comprises an anti-slip tooth top 572 and an anti-slip tooth root 574; the second anti-slip rack 580 includes a plurality of anti-slip teeth 581 distributed uniformly along the axial direction of the fixed pipe, and each anti-slip tooth 581 includes an anti-slip tooth crest 582 and an anti-slip tooth root 584.

As shown in fig. 6, the activity tube 600 includes an activity tube proximal end 610 and an activity tube distal end 630 with an activity tube wall 620 extending therebetween. The inner surface of the movable tube wall defines a second hollow passage 621 while the outer surface comprises a movable tube outer cylindrical surface 670 having a diameter Dw 1. The movable tube distal end 630 defines an open tube lip 631. The outer surface of the proximal movable tube end 610 includes a first outer protrusion 640 and a second outer protrusion 650 (not shown), and the movable tube wall 620 defines a second hollow passage 621. The first outer bump 640 includes on both sides a plurality of first drive teeth 641, the first drive teeth 641 including a drive top land 642 and a drive bottom land 644; both sides of the second outer lobe 650 include a plurality of second drive teeth 651 (not shown), the second drive teeth 651 (not shown) including a drive addendum 652 (not shown) and a drive dedendum 654 (not shown).

Fig. 7 depicts an assembled relationship of the stationary pipe 500 and the movable pipe 600. The movable tube 600 is mounted inside the stationary tube 500 with the outer perimeter size and shape of the movable tube wall 620 matching 521 the first hollow channel. The first outer bump 640 is matched with the first limiting groove 551 in shape and size and is installed in the first limiting groove 551, and the second outer bump 650 is matched with the second limiting groove 555 in shape and size and is installed in the second limiting groove 555. The first driving tooth 641 is matched and meshed with the first anti-skid rack 570 in size and shape; the second drive teeth 651 are sized and configured to mate and mesh with a second non-slip rack 580. In more detail, the driving tooth tip 642 is matched with an anti-slip tooth root 574, and the driving tooth root 644 is matched with an anti-slip tooth tip 572; the drive addendum 652 is mated to the anti-slip dedendum 584, and the drive dedendum 654 is mated to the anti-slip addendum 582.

In one embodiment, the fixing tube 500 is made of a thermoplastic material such as nylon, polycarbonate (polycarbonate plus fiberglass), etc. and the first and second fixing tube walls have a certain elasticity. Applying an axial force to the movable pipe 500 to move the driving tooth top from the anti-skid tooth root to the anti-skid tooth top, so as to force the first part of the fixed pipe wall 561 and the second part of the fixed pipe wall 562 to generate elastic deformation separated from each other; after the driving tooth top crosses the anti-skid tooth top, the first part fixed pipe wall 561 and the second part fixed pipe wall 562 elastically reset to enable the driving tooth top to move to the anti-skid tooth bottom; and continuously applying axial force to the movable pipe, so that the first driving tooth axially slides along the first anti-skid rack, and the second driving tooth axially slides along the second anti-skid rack, so that the movable pipe can be forced to axially move relative to the fixed pipe.

In still another design, the tooth height Hd1 of the anti-slip tooth is equal to the shortest distance between the anti-slip tooth top and the anti-slip tooth bottom, wherein 0.3mm Hd1 mm 0.5mm, when Hd1 is smaller than 0.3mm, the anti-slip tooth is difficult to manufacture, the depth of the engagement between the driving tooth and the anti-slip tooth is too shallow, and when Hd1 is larger than 0.5mm, the depth of the engagement between the driving tooth and the anti-slip tooth is too deep, which is not favorable for applying axial force to force the first driving tooth to axially slide along the first anti-slip rack, and the second driving tooth axially slides along the second anti-slip rack, thereby forcing the movable pipe to axially move relative to the fixed pipe. In still another design, the tooth height Hd1 of the anti-slip tooth is equal to the shortest distance between the anti-slip tooth top and the anti-slip tooth bottom, wherein 0.3mm Hd1 mm 0.5mm, when Hd1 is smaller than 0.3mm, the anti-slip tooth is difficult to manufacture, the depth of the engagement between the driving tooth and the anti-slip tooth is too shallow, and when Hd1 is larger than 0.5mm, the depth of the engagement between the driving tooth and the anti-slip tooth is too deep, which is not favorable for applying axial force to force the first driving tooth to axially slide along the first anti-slip rack, and the second driving tooth axially slides along the second anti-slip rack, thereby forcing the movable pipe to axially move relative to the fixed pipe.

The hollow tube assembly 3 further comprises a thin film tube 50. 9-10, the thin film tube 50 comprises a thin film tube proximal end 51 and a thin film tube distal end 53 with a thin film tube wall 52 extending therebetween, the thin film tube wall 52 defining a second hollow passageway 55. The thin film tube distal end 53 contains a thin film tube sealing aperture 59. The thin film tube 50 is installed outside the fixed tube 500, wherein the thin film tube wall 52 is wrapped outside the fixed tube wall 520 and forms a hermetic seal with the fixed tube wall, and the gas in the fixed tube is prevented from leaking to the outside of the fixed tube through the first and second limiting grooves. In one embodiment, the thin film tube proximal end 51 is bonded to the outer surface of the fixed tube proximal end 510; the thin film tube distal end 53 is bonded to the outer surface of the fixation tube distal end 530. In one alternative, the thin film tube 50 is made of a thermoset elastomeric material (e.g., silicone rubber) or a thermoplastic elastomeric material (e.g., polyurethane), which is flexible and resilient.

By using an experimental method, the material of the fixed pipe, the thickness of the pipe wall, the sizes of the first annular undercut groove and the second annular undercut groove are optimized, and the tooth shapes and the tooth heights of the anti-skidding teeth and the driving teeth are optimized, so that the peak force Fr for axially moving the movable pipe is limited within a certain range. In one design, Fr is 5 Newton or more and 10 Newton or less. When Fr is more than 10 Newton, the operation of moving the movable tube is uncomfortable and inconvenient, and if Fr is less than 5 Newton, the movable tube can be moved, relative displacement is easily generated between the movable tube and the fixed tube, and the adjustment is inconvenient.

The hollow pipe assembly 3 further comprises a lock assembly arranged on the outer surface of the fixed pipe and used for hooping the fixed pipe to enable the fixed pipe to contract and deform, so that the first driving teeth and the first anti-skid racks are kept in a meshed state, the second driving teeth and the second anti-skid racks are kept in a meshed state, and rotation or axial movement displacement between the movable pipe and the fixed pipe is limited. The lock assembly includes an unlocked state and a locked state. In the locking state, the lock assembly applies enough extrusion force to the fixed pipe to force the fixed pipe to contract and deform, so that the first driving tooth and the first anti-skid rack are kept in the meshed state, and the second driving tooth and the second anti-skid rack are kept in the meshed state; thereby limiting the rotation or axial movement displacement between the movable pipe and the fixed pipe; under the unlocking state, the lock assembly is wrapped on the outer surface of the fixed pipe, the extrusion force on the fixed pipe is not generated, and the lock assembly can axially move along the fixed pipe under the unlocking state.

FIG. 11 depicts an automatically retracting lock assembly 800, the lock assembly 800 including a lock body and lever handles and stop blocks extending from both ends of the lock body; the locking piece body is formed into a locking piece hole through prefabricated curling, and the locking piece forms inward curled locking force. The locking assembly 800 includes a locking assembly body 810, and a lever handle 820 and a stopper 830 extending from both ends of the locking assembly body 810. The lock body 810 is formed with a lock hole 840 by pre-crimping, and the lock 800 forms a locking force of being inwardly crimped. The inward curling force of the lock body 810 alternately defines the handles 820 and the stopping edges 830 at both ends of the lock body 810, and the handles 820 are alternately formed into an approximately V-shape. The lock aperture 840 may be enlarged or reduced by squeezing or releasing the two handles 820.

As shown in fig. 10, the lock assembly 800 is installed at the outer surface of the fixed pipe 500, wherein the locking element hole 840 wraps the outer surface of the fixed pipe 500. The size of the locking piece bore 840 is smaller than the outer diameter of the stationary tube and the lock assembly 800 includes a natural state, a locked state and an unlocked state. In a natural state, the inward curling force of the locking member 810 alternately limits the handles and the limiting blocks at the two ends of the locking member; in the locked state, the lock assembly 800 is wrapped outside the fixed tube 500 and the thin film tube 50, and the inward rolling force of the lock body 810 applies enough pressing force to the fixed tube to force the fixed tube to shrink and deform, so that the first driving teeth 641 and the first anti-skid racks 570 are kept in the meshed state, and the second driving teeth 651 and the second anti-skid racks 580 are kept in the meshed state; thereby limiting the rotation or axial movement displacement between the movable pipe and the fixed pipe; in the unlocking state, the two lever handles are pressed, so that the locking piece hole can be enlarged, the locking piece body does not generate extrusion force on the fixed pipe, at the moment, axial force can be applied to the movable pipe to force the movable pipe to axially move relative to the fixed pipe, and meanwhile, the lock assembly can axially move along the fixed pipe; when the two lever handles are released, the lock body is restored to form a locking state, and then the inward curling force of the lock body applies enough extrusion force to the fixed pipe to force the fixed pipe to contract and deform, so that the first driving tooth and the first anti-skid rack are kept in a meshed state, and the second driving tooth and the second anti-skid rack are kept in a meshed state; thereby limiting the rotation or axial movement displacement between the movable tube and the fixed tube.

As shown in fig. 10, the puncture tube assembly 1 comprises a sealing assembly 2 and a hollow tube assembly 3, and the proximal end of the hollow tube assembly 3 is connected to the distal end of the sealing assembly 2 and forms an airtight seal. The second sealing assembly 200 comprises a second sealing cartridge 230, wherein the shape and size of the distal end 234 of the second sealing cartridge 230 match with the proximal end 510 of the fixed tube, and the distal end 234 of the second sealing cartridge is connected with the proximal end 510 of the fixed tube to form an airtight seal. In one scheme, the far end 234 of the bin body is firmly connected with the near end 510 of the fixed tube by adopting a glue bonding method to form air seal; another method employs an interference fit to securely couple and form an air tight seal between the distal cartridge body end 234 and the proximal stationary tube end 510. The method of connecting the sealing member 2 and the hollow tube member 3 includes various ways in addition to the above-listed methods. For example, a sealing ring is added on the outside of the tip of the fixed tube 500, and the fixed tip and the far end of the cartridge body are firmly connected and form an airtight seal through a common snap connection or a threaded connection.

It will be appreciated by those skilled in the art that when the puncture tube assembly 1 is used in laparoscopic surgery, the surgeon can vary the overall length of the hollow tube assembly of the puncture tube assembly and adjust the fixed depth of the puncture tube assembly in the abdominal wall according to the thickness of the abdominal wall of the patient, the position and puncture angle of the puncture tube assembly, and the personal operation habit, etc., so that the desired arrangement of the external section (length H1), the internal section (length H2) and the internal section (length H3) of the puncture tube assembly is achieved. The method of adjusting the length of the hollow tube of the puncture tube assembly 1 comprises the steps of:

s1: the external force is applied to pinch and press the two lever handles of the lock component and keep the pinching pressure, and the hole of the locking piece is enlarged, so that the locking piece body does not generate the extrusion force to the fixed pipe;

s2: maintaining the pinching pressure and simultaneously axially moving the movable tube to generate axial relative displacement with the fixed tube, thereby adjusting the length of the hollow tube assembly to a proper position;

s3: keep holding between the fingers pressure and axial displacement lock subassembly to suitable position, release lever handle, the locking piece body recovers and forms the locking state, makes the locking piece applys sufficient extrusion force to the fixed pipe to make first drive tooth and first anti-skidding rack keep the engaged state, the second drive tooth keeps the engaged state with second anti-skidding rack, and then restriction movable tube and fixed pipe produce axial relative displacement.

Figures 12-21 depict yet another hollow tube assembly 3 a. The hollow tube assembly 3a includes a fixed tube 500a, a movable tube 600a, and a side fastener 700. Fig. 13 depicts the structure and composition of the mounting tube 500 a. The fixation tube 500a includes a fixation tube proximal end 510a and a fixation tube distal end 530a with a fixation tube wall 520a extending therebetween. The fixed tube wall 520a defines a first hollow channel 521. The mounting tube 500a further includes a lateral channel 560, the lateral channel 560 extending transversely through the mounting tube wall 520a, the lateral channel 560 extending from a proximal mounting tube end proximal region to a distal mounting tube end proximal region. In this example, the side channel 560 includes a first side channel 561 and a second side channel 563, but more side channels may be included. In this example, the side channels do not extend through the proximal end of the fixation tube. In another aspect, the side channel extends through the proximal or distal end of the fixation tube.

As shown in fig. 14, the movable tube 600a includes a movable tube proximal end 610a and a movable tube distal end 630 and a movable tube wall 620a extending therebetween. The inner surface of the movable tube wall defines a third hollow passage 621, while the outer surface thereof includes an outer surface anti-slip pattern 640 a. The outer surface antiskid lines extend from the adjacent area of the proximal end of the movable tube to the distal end. The movable tube distal end 630 defines an open tube lip 631. As shown in fig. 15, the side fastener 700 includes a side fastener proximal end 711 and a side fastener distal end 713 and a side fastener wall 712 extending therebetween, the side fastener wall 712 including an inner surface non-slip pattern 740 that mates with the outer surface non-slip pattern 640 a.

Figures 17-18 depict the assembled relationship of the hollow tube assembly 3 a. The movable tube 600a is installed inside the fixed tube 500a, and the outer circumference size and shape of the movable tube wall are matched with those of the second hollow channel. The side fastener 700 is installed in the side through groove 560 and contacts the movable pipe wall, and the side fastener 700 is movable in the side through groove 560 in a radial direction of the fixed pipe. The hollow tube assembly 3a further comprises a film tube 50, and the film tube wall 52 wraps the outer surfaces of the fixing tube 500a and the side fastener 700 to form a gas-tight seal with the fixing tube, so that gas in the fixing tube is prevented from leaking to the outside through the side through groove.

In one aspect, the film tube 50 has flexibility and elasticity, and the film tube 50 forms a hoop force with respect to the side fastener 700 to force the side fastener 700 to move along the side through groove 560 toward the inside of the fixing tube 500a, thereby engaging the outer surface non-slip patterns 640a and the inner surface non-slip patterns 740 with each other. Applying an axial force to the movable pipe, wherein the inner surface anti-slip threads can push the outer surface anti-slip threads outwards to force the thin film pipe to deform, so that the side fastener moves towards the outside of the fixed pipe along the side through groove until the outer surface anti-slip threads and the inner surface anti-slip threads are separated from each other, and the movable pipe moves axially relative to the fixed pipe; and canceling the axial force, wherein the film pipe is elastically restored, and the side fastener is forced to move towards the inside of the fixed pipe along the side through groove, so that the outer surface anti-skid grains and the inner surface anti-skid grains are meshed with each other.

Referring to fig. 14-16, in one implementation, the outer surface anti-slip pattern 640a includes annular teeth 641a defined by an annular crest 643a and an annular root 645a, the plurality of annular teeth 641a being uniformly distributed axially along the outer surface of the movable tube wall 620 a. The annular tooth 641a has a tooth height Hd2 equal to the shortest distance between the annular tooth top 643a and the annular tooth bottom 645 a. The inner surface anti-slip threads 740 include arcuate teeth 741 defined by arcuate crests 743 and arcuate roots 745, the plurality of arcuate teeth 741 being axially uniformly distributed along the outer surface of the side fastener wall 712. The outer surface and inner surface cleats intermesh with each other with the annular crest 643a mating with the arcuate dedendum 745 and the annular dedendum 645a mating with the arcuate addendum 743. In one design scheme, Hd2 is not less than 0.5mm and not more than 0.3mm, when Hd2 is less than 0.3mm, the anti-skidding tooth is difficult to manufacture, the friction force of the anti-skidding lines wrapped on the abdominal wall wound of a patient is insufficient, and Hd2 is greater than 0.5mm, in order to ensure enough strength, the outer diameter of the movable tube needs to be increased, so that the damage of the puncture wound is increased, and meanwhile, when the anti-skidding lines are wrapped on the abdominal wall wound of the patient, the anti-skidding tooth with the height of more than 0.5 easily causes additional damage to the wound. Although the cross-section of the cleat tooth is depicted as triangular, it could be trapezoidal, semi-circular, or other suitable shapes.

In one implementation, an axial force is applied to the movable pipe, the inner surface anti-slip patterns can push the outer surface anti-slip patterns outwards to force the thin film pipe to deform, so that the side fasteners move towards the outside of the fixed pipe along the side through grooves until the outer surface anti-slip patterns and the inner surface anti-slip patterns are separated from each other, and the movable pipe moves axially relative to the fixed pipe; and canceling the axial force, wherein the film pipe is elastically restored, and the side fastener is forced to move towards the inside of the fixed pipe along the side through groove, so that the outer surface anti-skid grains and the inner surface anti-skid grains are meshed with each other. Experimentally, the material of the thin film tube, the thickness and hardness of the tube wall, and the depth and angle of the mutual engagement of the outer surface anti-slip pattern and the inner surface anti-slip pattern were optimized to limit the peak force Fr2 for axially moving the movable tube to a certain range. In one design, Fr2 is 5 newtons or less and 10 newtons or less. When Fr2 is more than 10 newtons, the operation of moving the movable tube is uncomfortable and inconvenient, and if Fr2 is less than 5 newtons, the movable tube can be moved, relative displacement is easily generated between the movable tube and the fixed tube, and the adjustment is inconvenient.

As can be understood from fig. 12, 13 and 18, in this example, the first side through groove 561 and the second side through groove 563 are identical in shape and size, and thus the same side fasteners 700 are respectively installed in the first side through groove 561 and the second side through groove 563. However, the shape and size of the first side through-slot 561 and the second side through-slot 563 may be designed differently, the fastener 700 should include a first side fastener having a shape and size matching the first side through-slot 561 and a second side fastener having a shape and size matching the second side through-slot 563; the first side fastener is installed in the first side through groove, and the second side fastener is installed in the second side through groove. The interaction of the first and second side fasteners with the stationary and movable tubes is similar to the fastener 700 described above.

The hollow tube component 3a further comprises a lock component arranged on the outer surface of the fixed tube, the lock component is wrapped on the periphery of the fixed tube and the side fasteners and used for hooping the side fasteners to enable the side fasteners to move towards the inside of the fixed tube in the side through grooves, the lock component applies enough extrusion force to the side fasteners to limit the side fasteners to move towards the outside of the fixed tube along the side through grooves, so that the outer surface anti-slip patterns and the inner surface anti-slip patterns are kept in a meshed state, and further the movable tube and the fixed tube are limited to rotate or axially move and displace. The lock assembly includes an unlocked state and a locked state. In a locking state, the lock assembly applies enough extrusion force to the side fastener to limit the side fastener to move towards the outside of the fixed pipe along the side through groove, so that the outer surface anti-skid grains and the inner surface anti-skid grains are kept in a meshed state; in the unlocking state, the lock assembly is arranged on the periphery of the fixed pipe and the side fastener, and the extrusion force to the side fastener is not generated; the lock assembly is axially movable along the stationary tube in the unlocked state.

Fig. 19-20 depict a lock assembly 900. The lock assembly 900 includes a lock body 910 and a resilient arm 920; the latch body 910 defines an internal bore 930 that matches the outer diameter of the stationary tube 500 a. The first end 911 of the latch body 910 comprises a latch limiting step 913 and the second end 919 thereof is connected to the first end 921 of the elastic arm 920; the second end 929 of the resilient arm 920 includes a latch step surface 927; the resilient arm 920 is configured to resiliently swing around a first end 921 of the resilient arm. The inner side of the resilient arm 920 includes a plurality of raised retaining ribs 925. The hasp main part package is in the periphery of fixed pipe and side buckle, the lock subassembly contains unblock state and locking state. In a locked state, the lock catch step surface and the lock catch limiting step are mutually meshed and fixed (as shown in fig. 20), the elastic arm applies enough extrusion force to the side fastener to limit the side fastener to move towards the outside of the fixed pipe along the side through groove, and the outer surface anti-slip grains and the inner surface anti-slip grains are kept in a meshed state. In an unlocking state, the lock catch step surface and the lock catch limiting step are separated from each other, and the elastic arm does not generate extrusion force on the side fastener; the lock assembly is axially movable along the stationary tube in the unlocked state.

As shown in fig. 21, the puncture tube assembly 1a comprises a sealing assembly 2 and a hollow tube assembly 3a, and the proximal end of the hollow tube assembly 3a is connected to the distal end of the sealing assembly 2 and forms an airtight seal. The second sealing assembly 200 comprises a second sealing cartridge 230, wherein the shape and size of the distal end 234 of the second sealing cartridge 230 match with the proximal end 510 of the fixed tube, and the distal end 234 of the second sealing cartridge is connected with the proximal end 510 of the fixed tube to form an airtight seal.

It will be appreciated by those skilled in the art that when the puncture tube assembly 1a is used in laparoscopic surgery, the surgeon can change the overall length of the hollow tube assembly of the puncture tube assembly according to the thickness of the abdominal wall of the patient, the position and puncture angle of the puncture tube assembly, and the personal operation habit, etc., and further adjust the fixed depth of the puncture tube assembly in the abdominal wall, so that the desired arrangement of the external section (length H1), the internal section (length H2) and the internal section (length H3) of the puncture tube assembly is achieved. The method of adjusting the length of the hollow tube assembly of the puncture tube assembly 1a comprises the steps of:

s1: setting the lock assembly to be in an unlocking state, so that the lock assembly does not generate extrusion force on the side fastener;

s2: axially moving the movable pipe to make the movable pipe and the fixed pipe generate axial relative displacement, thereby adjusting the length of the hollow pipe assembly to a proper position;

s3: the lock assembly is set to be in a locking state, so that the lock assembly applies enough extrusion force to the side fastener, the side fastener is limited to move towards the outside of the fixed pipe along the side through groove, and the outer surface anti-skid grains and the inner surface anti-skid grains are kept in a meshing state.

It will be appreciated by those skilled in the art that the features of hollow tube assembly 3 and hollow tube assembly 3a that have been illustrated may be combined with one another and replaced to form a new spike assembly. For example, lock assembly 900 replaces lock assembly 800 in hollow tube assembly 3 to form a new hollow tube assembly 3b (not shown) and thus a new piercing tube assembly 1b (not shown). For example, lock assembly 800 replaces lock assembly 900 in hollow tube assembly 3a to form a new hollow tube assembly 3c (not shown).

The hollow tube assembly 3b includes a fixed tube 500, a thin film tube 50 and a movable tube 600, and the assembling relationship is the same as that of the hollow tube assembly 3, and will not be described again. The puncture tube assembly 1b comprises a sealing assembly 2 and a hollow tube assembly 3b, wherein the connection mode of the sealing assembly and the hollow tube assembly is the same as that of the puncture tube assembly 1, and the description is omitted. The hollow tube assembly 3b also includes a lock assembly 900 disposed on the outer surface of the stationary tube. The lock assembly comprises a fixed pipe, a lock piece and a lock piece, wherein the pipe wall of the lock piece is wrapped on the periphery of the fixed pipe; in a locked state, the lock catch step surface and the lock catch limiting step are mutually occluded and fixed, the elastic arm applies enough extrusion force to the fixed pipe to force the fixed pipe to contract and deform, so that the first driving tooth and the first anti-skid rack are kept in a meshed state, and the second driving tooth and the second anti-skid rack are kept in a meshed state; thereby limiting the rotation or axial movement displacement between the movable pipe and the fixed pipe; in an unlocking state, the lock catch step surface and the lock catch limiting step are separated from each other, and the elastic arm does not generate extrusion force on the fixed pipe; the lock assembly is axially movable along the stationary tube in the unlocked state. It will be appreciated by those skilled in the art that when the puncture tube assembly 1b is used in laparoscopic surgery, the surgeon can change the overall length of the hollow tube assembly of the puncture tube assembly and adjust the fixed depth of the puncture tube assembly in the abdominal wall according to the thickness of the abdominal wall of the patient, the position and puncture angle of the puncture tube assembly, and the personal operation habit, etc., so that the desired arrangement of the external section (length H1), the internal section (length H2) and the internal section (length H3) of the puncture tube assembly is achieved. The method of adjusting the length of the hollow tube assembly of the puncture tube assembly 1b comprises the steps of:

s1: setting a lock assembly to be in an unlocking state, so that the lock assembly does not generate extrusion force on a fixed pipe;

s2: continuously applying axial force to the movable pipe to force the first part of fixed pipe wall and the second part of fixed pipe wall to be separated from each other and elastically deformed, so that the first driving teeth axially slide along the first anti-skid racks, the second driving teeth axially slide along the second anti-skid racks, the movable pipe and the fixed pipe are axially and relatively displaced, and the length of the hollow pipe assembly is adjusted to a proper position; s3: the lock assembly is set to be in a locking state, and the lock assembly applies enough extrusion force to the fixed pipe, so that the first driving tooth and the first anti-skid rack are kept in a meshing state, the second driving tooth and the second anti-skid rack are kept in a meshing state, and the movable pipe and the fixed pipe are further limited to generate axial relative displacement.

The hollow tube assembly 3c includes a fixed tube 500a, a movable tube 600a, a side fastener 700, and a film tube 50. The respective assembling relationships are the same as those of the hollow tube block 3a, and are not described in detail. The puncture tube assembly 1c comprises a sealing assembly 2 and a hollow tube assembly 3c, wherein the sealing assembly and the hollow tube assembly are connected in the same manner as the puncture tube assembly 1a, and the description is omitted. The hollow tube assembly 3b also includes a lock assembly 800 disposed on the outer surface of the fixed tube and the side clasp piece. The size of the locking piece hole is smaller than the outer circle size of the fixed tube, and the lock assembly 800 comprises a natural state, a locked state and an unlocked state; in a natural state, the inward curling force of the locking member 810 alternately limits the handles 820 and the limiting blocks 830 at the two ends of the locking member; in a locking state, the lock assembly is wrapped on the outer surfaces of the fixed pipe and the side cover plate, the inward curling force of the lock body applies enough extrusion force to the side fastener, the side fastener is limited to move towards the outside of the fixed pipe along the side through groove, and the outer surface anti-skid grains and the inner surface anti-skid grains are kept in a meshed state; thereby limiting the rotation or axial movement displacement between the movable pipe and the fixed pipe; in the unlocking state, the two lever handles are pressed, so that the locking piece hole can be enlarged, the locking piece body does not generate extrusion force on the side fastener, at the moment, axial force can be applied to the movable pipe to force the movable pipe to axially move relative to the fixed pipe, and meanwhile, the lock assembly can axially move along the fixed pipe; when the two lever handles are released, the lock body is restored to form a locking state, and the inward curling force of the lock body exerts enough extrusion force on the opposite side fasteners to limit the side fasteners to move towards the outside of the fixed pipe along the side through grooves, so that the outer surface anti-skid grains and the inner surface anti-skid grains are kept in a meshed state; thereby limiting the rotation or axial movement displacement between the movable tube and the fixed tube. It will be appreciated by those skilled in the art that when the puncture tube assembly 1c is used in laparoscopic surgery, the surgeon can vary the overall length of the hollow tube assembly of the puncture tube assembly and adjust the fixed depth of the puncture tube assembly in the abdominal wall according to the thickness of the abdominal wall of the patient, the position and puncture angle of the puncture tube assembly, and the personal manipulation habits, etc., so that the desired arrangement of the external section (length H1), the internal section (length H2) and the internal section (length H3) of the puncture tube assembly is achieved. The method of adjusting the length of the hollow tube assembly of the puncture tube assembly 1c comprises the steps of:

s1: the external force is applied to pinch and press the two lever handles of the lock component and keep the pinching pressure, and the locking piece hole is enlarged, so that the locking piece body does not generate the extrusion force to the side cover plate;

s3: the holding pressure and the axial movement lock subassembly to suitable position, release lever handle, the locking body restores and forms the locking state, restriction activity pipe and fixed pipe produce rotation or axial displacement between.

Other adaptations should occur to those skilled in the art, such as optimizing the shape and size fit of the side channel and side fastener so that the side fastener can move toward the inside of the stationary pipe but not fall therein; such as the addition of anti-slip teeth on the inside of the side fasteners. The notch, the limiting groove, is depicted as being parallel to the axis of the stationary tube, but may be angled, or a spiral groove, an arcuate groove, etc. Other modifications are also conceivable.

Those skilled in the art will readily appreciate that the spike assembly also requires a mating spike. The puncture needle penetrates through the puncture tube assembly to form a puncture outfit, then the puncture outfit and the puncture outfit penetrate through the abdominal wall through an incision arranged on the abdominal wall of a patient in advance to enter the body cavity, and then the puncture needle is taken away, and the movable tube is left to be used as a passage for the instrument to enter and exit the body cavity. The introducer needle generally includes a handle portion, a shaft portion and a distal portion. For example, CN201611125444.3 entitled "improved bladeless visual puncture needle" is incorporated herein by reference, which is the puncture needle disclosed in the chinese invention application filed on 12/9/2016. The puncture tube component formed by the telescopic bottom shell component can be contracted into the shortest length at the initial position, and then is matched with the improved knife-free visual puncture needle to form the puncture device for penetrating through the abdominal wall, and the fixed tube and the movable tube are rotated relatively after the puncture needle is taken away, so that the fixed depth of the puncture tube component on the abdominal wall is adjusted, and the external section (length H1), the body wall section (length H2) and the internal section (length H3) of the puncture tube component are ideally arranged. A retractable puncture needle can also be designed to match the retractable puncture tube assembly.

Many different embodiments and examples of the invention have been shown and described. The individual embodiments each contain typically different distinguishing features, which can be interchanged or superimposed on one another. One of ordinary skill in the art can adapt the methods and apparatus described herein by making appropriate modifications without departing from the scope of the invention. Several modifications have been mentioned, and other modifications will occur to those skilled in the art. The scope of the invention should, therefore, be determined with reference to the appended claims, and not be construed as limited to the details of structure, materials, or acts shown and described in the specification and drawings.

Claims

1. A puncture tube assembly comprising a side fastener, comprising a sealing assembly and a hollow tube assembly; the seal assembly comprises a first seal assembly and a second seal assembly; the second seal comprising a second capsule comprising a capsule proximal end and a capsule distal end and a wall portion extending therebetween, wherein:

1) the near end of the hollow pipe assembly is connected with the far end of the bin body to form sealing;

2) the hollow pipe assembly comprises a fixed pipe, a movable pipe, a side fastener and a film pipe;

3) the fixed tube comprises a fixed tube proximal end, a fixed tube distal end and a fixed tube wall extending therebetween; the movable tube comprises a movable tube proximal end, a movable tube distal end and a movable tube wall extending therebetween; the movable pipe is arranged in the fixed pipe;

4) the fixing tube also comprises a side through groove, and the side through groove extends from the near end adjacent area of the fixing tube to the far end adjacent area of the fixing tube; the hollow pipe assembly also comprises a side fastener matched with the side through groove in shape and size; the side fastener is arranged in the side through groove and is in contact with the movable pipe wall, and the side fastener can move in the side through groove along the radial direction of the fixed pipe;

5) the hollow tube assembly further comprises a thin film tube comprising a thin film tube proximal end and a thin film tube distal end with a thin film tube wall extending therebetween; the thin film tube wall is wrapped on the outer surfaces of the fixed tube and the side fastener and forms air seal with the fixed tube and the side fastener;

6) the film tube has flexibility and elasticity, and the film tube forms an annular clamping force on the wall of the side fastener to force the side fastener to move towards the inside of the fixed tube along the side through groove, so that the outer surface anti-skid grains and the inner surface anti-skid grains are meshed with each other.

2. The puncture tube assembly of claim 1, wherein: the movable pipe wall comprises a plurality of outer surface anti-skid grains which are uniformly distributed along the axial direction of the movable pipe wall; the side fastener includes a side fastener proximal end and a side fastener distal end and a side fastener wall extending therebetween, the side fastener wall including an inner surface non-slip pattern matching the outer surface non-slip pattern.

3. The puncture tube assembly of claim 2, wherein: applying an axial force to the movable pipe, wherein the inner surface anti-slip threads can push the outer surface anti-slip threads outwards to force the thin film pipe to deform, so that the side fastener moves towards the outside of the fixed pipe along the side through groove until the outer surface anti-slip threads and the inner surface anti-slip threads are separated from each other, and the movable pipe moves axially relative to the fixed pipe; and canceling the axial force, wherein the film pipe is elastically restored, and the side fastener is forced to move towards the inside of the fixed pipe along the side through groove, so that the outer surface anti-skid grains and the inner surface anti-skid grains are meshed with each other.

4. The puncture tube assembly of claim 1, wherein: the far end of the thin film tube comprises a thin film tube sealing hole, and air sealing can be formed between the thin film tube sealing hole and the anti-skid lines on the outer surface; the inner side of the distal end of the fixed tube comprises a chamfer.

5. The puncture tube assembly of claim 1, further comprising a lock assembly disposed on an outer surface of the fixed tube, the lock assembly encompassing an outer circumference of the fixed tube and the side fastener; the lock assembly includes an unlocked state and a locked state. In a locking state, the lock assembly applies enough extrusion force to the side fastener to limit the side fastener to move towards the outside of the fixed pipe along the side through groove, so that the outer surface anti-skid grains and the inner surface anti-skid grains are kept in a meshed state; in the unlocking state, the lock assembly is arranged on the periphery of the fixed pipe and the side fastener, and the extrusion force to the side fastener is not generated; the lock assembly is axially movable along the stationary tube in the unlocked state.

6. The spike assembly of claim 5, wherein: the lock assembly comprises a lock body, a lever handle and a limiting block, wherein the lever handle and the limiting block extend from two ends of the lock body; the locking piece body is formed into a locking piece hole through prefabricated curling, and the locking piece forms inward curled locking force.

7. The puncture tube assembly of claim 6, wherein: the size of the lock piece hole is smaller than the size of the outer circle of the fixed pipe, and the lock assembly comprises a natural state, a locking state and an unlocking state; in a natural state, the handles and the limiting blocks at the two ends of the locking piece body are limited in a staggered mode by the inward curling force of the locking piece body; in a locking state, the lock assembly is wrapped on the outer surfaces of the fixed pipe and the side cover plate, the inward curling force of the lock body applies enough extrusion force to the side fastener, the side fastener is limited to move towards the outside of the fixed pipe along the side through groove, and the outer surface anti-skid grains and the inner surface anti-skid grains are kept in a meshed state; thereby limiting the rotation or axial movement displacement between the movable pipe and the fixed pipe; in the unlocking state, the two lever handles are pressed, so that the locking piece hole can be enlarged, the locking piece body does not generate extrusion force on the side fastener, at the moment, axial force can be applied to the movable pipe to force the movable pipe to axially move relative to the fixed pipe, and meanwhile, the lock assembly can axially move along the fixed pipe; when the two lever handles are released, the lock body is restored to form a locking state, and the inward curling force of the lock body exerts enough extrusion force on the opposite side fasteners to limit the side fasteners to move towards the outside of the fixed pipe along the side through grooves, so that the outer surface anti-skid grains and the inner surface anti-skid grains are kept in a meshed state; thereby limiting the rotation or axial movement displacement between the movable tube and the fixed tube.

8. A method of adjusting the length of a hollow tube assembly of the spike assembly of claim 7 comprising the steps of: