CN117942140A

CN117942140A - Single-hole multichannel puncture sheath tube

Info

Publication number: CN117942140A
Application number: CN202410195935.3A
Authority: CN
Inventors: 廖贻达; 谢万彬; 李鑫; 常帅; 薛洋; 冯刚
Original assignee: Chengdu Wuyi Medical Equipment Co ltd; Sichuan Peoples Hospital of Sichuan Academy of Medical Sciences
Current assignee: Chengdu Wuyi Medical Equipment Co ltd; Sichuan Peoples Hospital of Sichuan Academy of Medical Sciences
Priority date: 2024-02-22
Filing date: 2024-02-22
Publication date: 2024-04-30

Abstract

The invention discloses a single-hole multichannel puncture sheath tube, which belongs to the field of medical appliances, and comprises a channel platform and a notch protection sleeve, wherein the notch protection sleeve is arranged at the lower part of the channel platform; a plurality of operation channels are arranged on the channel platform; the inner side of the incision protection sleeve is detachably provided with a sealing valve, and the sealing valve is used for keeping pneumoperitoneum by the incision protection sleeve after the channel platform is removed; the notch protection sleeve comprises a connecting ring, the sealing valve comprises a connecting sleeve and a sealing film, and the connecting sleeve is connected with the inner side of the connecting ring in an interference fit manner; the connecting ring comprises at least one sealing convex ring, the connecting sleeve comprises at least one outer groove, and the sealing convex ring is embedded into the outer groove; the channel platform includes at least one internal groove into which the sealing collar is embedded.

Description

Single-hole multichannel puncture sheath tube

Technical Field

The invention relates to the field of medical instruments, in particular to a single-hole multichannel puncture sheath.

Background

At present, single-hole minimally invasive surgery is gradually popularized, wherein a disposable multichannel single-hole laparoscopic puncture outfit is used as an important instrument in single-hole surgery, and is used for establishing an access channel in the surgery so that other instruments can enter a human body to perform the surgery. The disposable multichannel single-port laparoscopic surgery mainly comprises a multichannel sealing body and an incision protecting sleeve. Wherein the incision protective sleeve is arranged on the operation incision and used for protecting the incision and installing the multi-channel sealing body.

The existing disposable multichannel single-hole mainly has the following defects that pneumoperitoneum is established firstly through an air injection valve before operation, and a sample can be taken out of a body in the operation process. In some cases, the multichannel sealing body needs to be removed, and pneumoperitoneum is instantaneously decompressed, so that body fluid or blood splashes on medical staff. After the multichannel sealing body is installed, the pneumoperitoneum is re-established, and precious operation time is wasted.

Disclosure of Invention

The invention aims at providing a single-hole multichannel puncture sheath tube with a sealing valve, which solves the problems in the background art.

The puncture sheath comprises a channel platform and a notch protection sleeve, and the notch protection sleeve is arranged at the lower part of the channel platform; a plurality of operation channels are arranged on the channel platform; the inner side of the incision protection sleeve is detachably provided with a sealing valve, and the sealing valve is used for keeping pneumoperitoneum by the incision protection sleeve after the channel platform is removed; the notch protection sleeve comprises a connecting ring, the sealing valve comprises a connecting sleeve and a sealing film, and the connecting sleeve is connected with the inner side of the connecting ring in an interference fit manner; the connecting ring comprises at least one sealing convex ring, the connecting sleeve comprises at least one outer groove, and the sealing convex ring is embedded into the outer groove; the channel platform includes at least one internal groove into which the sealing collar is embedded.

An optional technical scheme, the go-between includes the sealed bulge loop more than 2, forms the bulge loop changeover portion between the sealed bulge loop, the adapter sleeve includes more than 2 outer recesses, forms outer recess changeover portion between the outer recess, bulge loop changeover portion and outer recess changeover portion shape matching cooperation.

An optional technical scheme is that a notch channel is formed in the sealing film, and a channel for instruments and fetching is formed after the notch is deformed.

An alternative solution is to provide the incision channel with at least one incision.

An optional technical scheme, locking device is connected to the inner groove outside, locking device is used for locking passageway platform and incision protective sheath.

An alternative solution is to have the working channels with the same or different inner diameters.

An optional technical scheme, still include locking device, passageway platform and incision protective sheath are locked through locking device, and the device includes: the locking ring is in a non-closed-loop structure,

The locking switch is used for connecting two ends of the locking ring to enable the locking ring to form a closed-loop structure, the locking switch comprises a handle and a correction lug boss positioned between the handle and the locking ring, the locking switch is opened and closed by applying external force on the handle to unlock or lock the locking ring, and the correction lug boss is used for correcting the locking ring to form a complete circular ring when the locking ring is locked.

An alternative technical scheme is that the locking ring comprises a first end and a second end, wherein a fixing buckle is formed on the first end outwards along the radial direction of the locking ring; the second end is provided with a movable boss, the locking switch shaft is connected with the fixed buckle and the movable boss, and the movable boss is driven to move by the rotating handle so as to unlock or lock the locking ring.

An optional technical scheme, the corresponding positions of the handle and the locking ring are provided with buckling structures, so that the locking ring and the handle are locked.

An optional technical scheme is that the locking ring is provided with a correction section between the buckle structure and the movable boss, the correction boss is connected with the correction section or the handle, and the correction boss corrects the correction section in the locking process; the correction boss comprises a base part and a working head part, and the base part is arc-shaped; the correction section is provided with a concave arc section matched with the working head.

The beneficial effects of the invention include:

a sealing valve is additionally arranged between the multichannel sealing body and the incision protective sleeve, and the sealing valve is arranged on the incision protective sleeve, so that the abdomen is always kept pneumoperitoneum, liquid splashing is prevented, and meanwhile, the operation time is shortened.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It will be apparent to those skilled in the art that the drawings, which are included in the following description, are merely illustrative of some embodiments of the invention and that the invention may be practiced otherwise than as specifically described without departing from the principles and spirit of the invention. In the drawings:

FIG. 1 is a schematic view of a puncture sheath according to the present invention;

FIG. 2 is a schematic view of the assembly of a puncture sheath according to the present invention;

FIG. 3 is a cross-sectional view of the puncture sheath of FIG. 1 provided by the present invention;

FIG. 4 is an enlarged view of a portion 3-3 of FIG. 3 in accordance with the present invention;

FIG. 5 is a schematic view of a sealing valve provided by the present invention;

FIG. 6 is a perspective view of a sealing valve provided by the present invention;

FIG. 7 is a schematic view of a locking device according to the present invention;

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

FIG. 9 is a diagram showing a locked state of the locking device according to the present invention;

fig. 10 is a schematic view of the locking device without the correction boss.

Detailed Description

Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. In the drawings, the size of some of the elements may be exaggerated or otherwise distorted for clarity. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the disclosed aspects may be practiced without one or more of the specific details, or with other methods, components, etc. In other instances, well-known structures, methods, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to fall within the scope of the application. It is noted that relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; when an assembly is said to be "fixed" to another assembly, it may be directly fixed to another assembly or there may be an intervening assembly, possibly by bonding, welding, riveting, bolting, etc. in an efficient manner, the application is not specifically recited; when a component is said to be "active" with another component, it may be either by rotation or sliding.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Referring to fig. 1-2, the puncture sheath comprises a channel platform 2 and a incision protecting sleeve 3, wherein the incision protecting sleeve 3 is arranged at the lower part of the channel platform 2; a plurality of operation channels 4 are arranged on the channel platform 2; the inner side of the incision protecting sleeve 3 is detachably provided with a sealing valve 5 for maintaining pneumoperitoneum of the incision protecting sleeve 3 after the channel platform 2 is removed.

As shown in fig. 3 to 6, the incision protection sheath 3 includes a connection ring 310, a film passage 330, and an inner ring 320, wherein the film passage 330 has an upper end connected to the connection ring 310 and a lower end connected to the inner ring 320. The sealing valve 5 comprises a connecting sleeve 510 and a sealing membrane 520, wherein the connecting sleeve 510 is connected with the inner side of the connecting ring 310 in an interference fit manner. The sealing film 520 is provided with a notch channel 521, and the notch is deformed to form a channel for instruments and fetching objects. Alternatively, the incision channel 521 may include at least one incision, and the incision channel 521 may be in a straight, cross-shaped, or other incision shape.

As shown in fig. 4-6, the connecting ring 310 includes a first sealing collar 331 and a second sealing collar 332, and a collar transition 333 therebetween, the connecting sleeve 510 includes a first outer groove 511 and a second outer groove 512, and an outer groove transition 513 therebetween, the connecting sleeve 510 includes at least one outer groove, and the connecting ring 310 includes at least one sealing collar embedded in the outer groove.

The channel platform 2 comprises a sealing bin 200, the lower end of the sealing bin 200 is provided, a first inner groove 271 and a second inner groove 272 inside the platform connecting section 270 and an inner groove transition section 273 between the first inner groove and the second inner groove, the channel platform 2 comprises at least one inner groove, and the sealing convex ring is embedded in the inner groove. The outer side of the platform connecting section 270 comprises a locking ring 11 which is wrapped and connected, and the locking ring 11 can be an elastic ring, and also can be plastic or metal sheet with a locking switch.

As shown in fig. 3, the operation channel 4 includes an operation channel main body 44 and an operation channel upper cover, and the operation channel 4 includes a first sealing device 41 and a second sealing device 42 provided between the operation channel main body 44 and the operation channel upper cover.

The connecting ring 310 comprises more than 2 sealing convex rings, a convex ring transition section 333 is formed between the sealing convex rings, the connecting sleeve 310 comprises more than 2 outer grooves, an outer groove transition section 513 is formed between the outer grooves, and the convex ring transition section 333 is matched with the outer groove transition section 513 in shape to form triple sealing. Meanwhile, the platform connection section 270 includes more than 2 inner grooves, an inner groove transition section 273 is formed between the inner grooves, the sealing convex ring is embedded in the inner grooves, and the convex ring transition section 333 is matched with the inner groove transition section 273 in a shape matching manner, so that triple sealing is also formed.

The outside of the inner groove is connected with a locking device which is used for locking the channel platform 2 and the incision protection sleeve 3. A preferred locking device further comprises a correction function, so that the whole circular arc of the locking device is guaranteed to be complete, a complete circular locking ring is formed, the air tightness of the channel platform and the notch protection sleeve is guaranteed, and meanwhile sealing between the notch protection sleeve 3 and the sealing valve 5 is guaranteed better.

When in use, the incision protective sleeve 3 is arranged at the operation part of a patient, and the sealing valve 5 is arranged at the inner side of the incision protective sleeve connecting ring; sleeving the channel platform 2 on the outer side of the connecting ring of the notch protection sleeve 3;

In operation, when it is desired to remove a specimen from the patient, the surgical instrument is first used to transfer the specimen through the cross-cut of the sealing valve 5 to the seal cartridge 200 and the sealing valve cross-slit is closed.

And removing the channel sealing body and removing the specimen. Because of the airtight protection function of the sealing valve, pneumoperitoneum gas in a patient can not leak, and liquid splashing and pneumoperitoneum loss can be prevented. After the specimen is removed, the specimen is reloaded back to the channel platform 2, and the operation is continued.

Referring to fig. 7-9, the locking device 1 of the present application includes a locking ring 11 and a locking switch 12, wherein the locking ring 11 is in a non-closed structure, and includes a first end and a second end, the first end extends outwards along a radial direction of the locking ring 11 to form at least one fixing buckle 13, the present application is 2 fixing buckles 13, and the fixing buckle 13 has a first pin hole 131; a movable boss 14 is formed at the second end, a third pin hole 141 is formed in the movable boss 14, and a clip 15 is formed at a certain distance from the movable boss 14.

The locking switch 12 comprises a handle, the handle comprises a mounting end, a handle end and a correction lug boss 121 positioned on the side wall of the locking switch 12, the correction lug boss 121 is positioned on the inner side of the handle and formed by inwards extending the handle, and the correction lug boss can also be formed by outwards extending the corresponding position of the locking ring. The correction boss 121 and the handle or locking ring may be integrally formed or may be welded, bonded or the like.

The handle end is provided with a buckling hole 122 matched with the clip 15; the fitting end is arc-shaped, and a second pin hole 123 is formed on one side of the connection handle end, and a fourth pin hole 124 is formed on the other end. The first pin hole 131 and the second pin hole 123 are rotatably connected by the first rotary pin 16; the third pin hole 141 and the fourth pin hole 124 are rotatably connected by the second rotation pin 17. The locking switch 12 of this embodiment is shaped as a handle, and those skilled in the art will appreciate that other similar configurations may be used.

An alternative embodiment is that a clip 15 is arranged on the handle, and a buckling hole is arranged at a corresponding position of the locking ring 11 to form a buckling structure.

Referring to fig. 7 to 9, the correction boss 121 includes a base portion 211 having an arc shape and a working head portion 210; the movable boss 14 is an arc boss, and the locking device is provided with the movable boss 14, the correction boss 121 and the buckle structure to form a correction support, so that the locking effect is better.

Closing the locking switch 12, rotating the handle towards the direction of the clamp 15, and rotating the second pin hole 123 along the first rotary pin 16; the fourth pin hole 124 is driven to drive the third pin hole 141 through the second rotary pin 17, so that the locking ring is reduced and tightened. The locking ring 11 is provided with a correction section 141 between the clip 15 and the movable boss 14, the correction boss 121 corrects the correction section 141 in the locking process, and the fastening hole 122 is fastened with the clip 15 to realize locking, as shown in fig. 7-10. The movable boss 14, the correction boss 121 and the buckle structure form correction support, so that the whole circular arc of the locking ring is ensured to be complete, a complete circular locking ring is formed, the air tightness of the channel platform and the notch protection sleeve is ensured, and the locking effect is further improved. If the correction boss 121 is not provided, the correction section 141 of the locking ring will warp outwards due to the outward pulling action of the movable boss 14, and the correction section 141 cannot form a complete circular ring in the locked state, which affects the air tightness of the channel platform and the incision protection sleeve, and air leakage occurs. As shown in fig. 10, under the condition that the correction boss is not corrected, the correction section 141 of the locking ring is warped outwards, the correction section 141 cannot form a complete circular ring under the locking state, particularly, in the clinical use process, a larger gap can appear between the platform connecting section 270 and the correction section 141, and because the incision protection sleeve receives a larger incision pressure on one hand, and on the other hand, the large-angle movement process of the instrument drives the channel platform to deform so that the correction section 141 of the locking ring is warped outwards more, the air tightness of the channel platform and the incision protection sleeve is easily affected, and air leakage occurs.

The locking switch 12 is turned on, and the movable boss 14 is moved to the opposite direction of the first end by applying an acting force, so that the diameter of the locking ring 11 is enlarged, and unlocking is realized.

Referring to fig. 1 and 7-9, a soft instrument sheath, the sheath comprising: the passageway platform 2, passageway platform 2 is cavity saccular structure for providing the apparatus passageway and be cavity saccular structure, when utilizing this locking device 1 to carry out the assembly to passageway platform 2 and incision protective sheath 3, at first connect locking device 1 and passageway platform 2 as an organic whole structure through modes such as bonding, welding, with locking device 1 unblock, be in the unblock state, incision protective sheath 3 suit is in locking ring 11, pull locking switch 12 towards the rotation of checkpost 15 direction realization locking, make locking ring diameter reduce the back to passageway platform, incision protective sheath exert clamping force, accomplish the assembly of locking device 1, passageway platform 2 and incision protective sheath 3, make the incision protective sheath not drop.

The channel platform 2 is provided with an operation channel 4 for the instruments to extend in, and the operation channel 4 is provided with a plurality of operation channels with different sizes according to the situation so as to meet the requirement of different instruments to enter and exit. The instruments herein refer to flexible tubing probes, endoscopic instruments, staplers, and the like. The channel platform 2 may also be provided with an inlet pipe for carbon dioxide gas and a smoking pipe for smoking.

The present disclosure has been described with respect to the above-described embodiments, however, the above-described embodiments are merely examples of implementation of the present disclosure. It must be noted that the disclosed embodiments do not limit the scope of the present disclosure. Rather, the foregoing is considered to be illustrative, and it is to be understood that the invention is not limited to the specific details disclosed herein.

Claims

1. The single-hole multichannel puncture sheath is characterized by comprising a channel platform and a notch protection sleeve, wherein the notch protection sleeve is arranged at the lower part of the channel platform; a plurality of operation channels are arranged on the channel platform; the inner side of the incision protection sleeve is detachably provided with a sealing valve, and the sealing valve is used for keeping pneumoperitoneum by the incision protection sleeve after the channel platform is removed;

the notch protection sleeve comprises a connecting ring, the sealing valve comprises a connecting sleeve and a sealing film, and the connecting sleeve is connected with the inner side of the connecting ring in an interference fit manner;

the connecting ring comprises at least one sealing convex ring, the connecting sleeve comprises at least one outer groove, and the sealing convex ring is embedded into the outer groove;

The channel platform includes at least one internal groove into which the sealing collar is embedded.

2. The single-hole multichannel puncture sheath according to claim 1, wherein the connecting ring comprises more than 2 sealing convex rings, convex ring transition sections are formed between the sealing convex rings, the connecting sleeve comprises more than 2 outer grooves, outer groove transition sections are formed between the outer grooves, and the convex ring transition sections are matched with the outer groove transition sections in a shape.

3. The single-hole multi-channel puncture sheath according to claim 1, wherein the sealing membrane is provided with a notch channel, and the notch is deformed to form a channel for instruments and objects.

4. A single-hole multichannel puncture sheath according to claim 3, characterized in that the incision channel comprises at least one incision.

5. The single-hole multichannel puncture sheath according to claim 1, wherein the outer side of the inner groove is connected with a locking device, and the locking device is used for locking the channel platform and the incision protection sleeve.

6. The single-hole multichannel puncture sheath of claim 1, wherein the working channel inner diameters are the same or different.

7. The single-hole multichannel puncture sheath of claim 1, further comprising a locking device, wherein the channel platform and incision sheath are locked by the locking device, the device comprising: the locking ring is in a non-closed-loop structure,

8. The single hole multichannel puncture sheath of claim 7, wherein the locking ring comprises a first end and a second end, the first end having a retaining catch formed thereon outwardly in a radial direction of the locking ring; the second end is provided with a movable boss, the locking switch shaft is connected with the fixed buckle and the movable boss, and the movable boss is driven to move by the rotating handle so as to unlock or lock the locking ring.

9. The single-hole multichannel puncture sheath according to claim 7, wherein the corresponding positions of the handle and the locking ring are provided with a buckling structure, so that the locking ring and the handle are locked.

10. The single-hole multichannel puncture sheath according to claim 7, wherein the locking ring is a correction section between the snap-fit structure and the movable boss, the correction boss is connected with the correction section or the handle, and the correction boss corrects the correction section during locking; the correction boss comprises a base part and a working head part, and the base part is arc-shaped; the correction section is provided with a concave arc section matched with the working head.