CN115670553B

CN115670553B - Anchor nail pushing device

Info

Publication number: CN115670553B
Application number: CN202211705736.XA
Authority: CN
Inventors: 范宏利
Original assignee: BJ ZHF Panther Medical Equipment Co Ltd
Current assignee: BJ ZHF Panther Medical Equipment Co Ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-13
Anticipated expiration: 2042-12-29
Also published as: CN115670553A

Abstract

An anchor pushing device comprising: an anchor component, a pushing component and a puncture component; the anchor component comprises an anchor and a suture, and one end of the suture is fixed on the anchor; the puncture part comprises a puncture needle, the pushing part comprises a hollow channel, the puncture part passes through the hollow channel, and the anchor nail is sleeved at the front end of the puncture needle; wherein, the puncture part is used for sending the anchor into the body after penetrating the tissue, and the pushing part is used for separating the anchor from the front end of the puncture needle, thereby realizing embedding of the anchor. The anchor pushing device is convenient in anchor pushing operation, can be used for pulling and suturing tissues through the suture arranged on the pulling anchor, saves operation time and has a good technical effect.

Description

Anchor nail pushing device

Technical Field

The invention relates to the field of medical instruments, in particular to an anchor pushing device.

Background

Laparoscopic surgery is a newly developed minimally invasive method, and the traditional method of laparoscopic surgery is to insert a pipeline-shaped working channel called a stabber, and all operations are performed through the pipeline afterwards; and then the special lengthened surgical instrument is used for completing the same steps as the open surgery under the video monitoring, so as to achieve the same surgical effect. Meanwhile, in order to lift the operation space during the operation, some tissues need to be lifted or positioned. When laparoscopic surgery is generally adopted to perform abdominal or thoracic surgery treatment, 1-5 puncture channels with diameters of 5-15 mm penetrating through the whole abdominal (thoracic) wall are generally required to be arranged first, so that laparoscopes and surgical instruments can enter the abdominal or thoracic cavity from the puncture channels to perform surgery, and after the "stab card" and the surgical instruments are removed after the surgery is finished, the puncture channels are required to be sutured, so that wounds are healed. At present, the suture needles used for suturing the puncture channels of the abdominal cavity or the thoracic cavity wall are all curved suture needles, but the puncture holes are relatively small, so that the operation is very difficult, the puncture channels with relatively small diameters are often difficult to suture, and sometimes, postoperative bleeding, poor wound healing, infection or even abdominal hernia can be induced due to imperfect suture, so that great pain is brought to patients.

Disclosure of Invention

The invention aims to solve the technical problem of poor suture of a puncture channel in the prior art.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

an anchor pushing device comprising: an anchor component, a pushing component and a puncture component; the anchor component comprises an anchor and a suture, and one end of the suture is fixed on the anchor; the puncture part comprises a puncture needle, the pushing part comprises a hollow channel, the puncture part passes through the hollow channel, and the anchor nail is sleeved at the front end of the puncture needle; wherein, the puncture part is used for sending the anchor into the body after penetrating the tissue, and the pushing part is used for separating the anchor from the front end of the puncture needle, thereby realizing embedding of the anchor.

Further, the front end of the puncture needle is provided with an annular groove, the anchor nail is provided with an annular inner table, and the annular groove is matched with the annular inner table in a clamping position.

Further, the puncture needle is provided with a triangular blade, and the anchor nail is provided with a conical surface.

Further, the anchor pushing device comprises an upper handle shell and a lower handle shell, and the puncture part is fixed with the upper handle shell; the pushing component comprises a pushing pipe and a pushing block, and the pushing pipe is fixedly connected with the pushing block; the pushing component is sleeved with a pressure spring, one end of the pressure spring is contacted with a round table arranged on the pushing block, and the whole pushing component is installed into the upper handle shell.

Further, the anchor pushing device further comprises a release push rod, and the push rod is pressed to push the pushing component to separate and drop the anchor component from the puncture needle component.

Further, the release push rod is provided with a limiting step which is matched with a guide groove arranged on the lower handle shell, and the rotation of the release push rod and the limiting of the axial movement stroke are limited.

Further, the release push rod is provided with a safety member for position locking the push member.

Further, the safety component comprises a safety hook which is meshed with a safety clamping position table arranged on the upper handle shell after the push rod is pressed and released, so that the position of the pushing component is locked; when the puncture needle is used again, the safety hook is pressed, the pushing component returns to the initial position under the action of the elasticity of the pressure spring, the triangular edge arranged on the puncture needle is exposed, the puncture needle is installed into the anchor component, and the anchor component can be pushed to the expected position continuously.

Further, the anchor component is made of biodegradable materials.

With such a design, the invention has at least the following advantages:

(1) The anchor nail pushing operation is convenient, and the tissues can be pulled and sutured by pulling the suture arranged on the anchor nail, so that the operation time is saved. (2) The contact area of the anchor and the tissue is greatly increased, and the secondary damage of stress to the tissue can be reduced in the process of pulling the suture, thereby being beneficial to the later recovery of patients and reducing pain. (3) After the anchor is pushed, the pushing tube is locked, so that the needle point can be protected, and secondary damage caused by the exposed needle point is avoided. (4) The pushing device can be reused after the same operation is unlocked. (5) The invention has simple structure, good effect, low cost and easy process realization.

Drawings

The foregoing is merely an overview of the present invention, and the present invention is further described in detail below with reference to the accompanying drawings and detailed description.

FIG. 1 is an exploded schematic view of an anchor pushing device of the present invention;

FIG. 2 is a schematic perspective view of a lancet assembly of the present invention;

FIG. 3 is a schematic perspective view of a pushing member of the present invention;

FIG. 4 is a schematic perspective view of an anchor assembly of the present invention;

FIG. 5 is a schematic cross-sectional view of an anchor according to the present invention;

FIG. 6 is a schematic perspective view of the upper handle housing of the present invention;

FIG. 7 is a schematic perspective view of the lower handle housing of the present invention;

FIG. 8 is a schematic cross-sectional view of the completed state of the present invention;

FIG. 9 is a schematic perspective view of an application guide tube of the present invention;

FIG. 10 is a schematic view of the present invention employing fascia suturing;

FIG. 11 is a schematic illustration of the tissue suspension piercing of the present invention;

FIG. 12 is a schematic view of an applied tissue suspension of the present invention;

reference numerals, 100 upper handle shell, 101 safety clamping platform, 102 fixed slot, 103 clamping step, 104 guide rail platform, 105 locating column, 200 lower handle shell, 201 guide slot, 202 inner hexagonal hole, 300 release push rod, 301 safety hook, 302 limit step, 400 puncture part, 410 locating block, 411 locating boss, 420 puncture needle, 421 triangular edge, 422 annular groove, 500 push part, 510 push tube, 520 push block, 521 hollow channel, 522 round platform, 523 open slot, 600 pressure spring, 700 anchor part, 710 anchor, 711 anchor annular groove, 712 conical surface, 713 annular inner platform, 720 suture, 800 guide tube, 801 back-off, 802 oblique channel.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In this document, "upper", "lower", and the like are used merely to denote relative positional relationships between related parts, and do not limit the absolute positions of the related parts.

The end of each component that is closer to the operator is defined as the proximal end and the end that is farther from the operator is defined as the distal end. The proximal and distal expressions are used for simplicity and clarity of description only and should not be construed as limiting the invention in any way.

Referring to fig. 1-4, an anchor pushing device, comprising: an anchor member 700, a push member 500, and a piercing member 400; the anchor assembly includes an anchor 710 and a suture 720, one end of the suture 720 being fixed to the anchor 710; the puncture part 400 comprises a puncture needle 420, the pushing part 500 comprises a hollow channel 521, the puncture part 400 passes through the hollow channel 521, and the anchor 710 is sleeved at the front end of the puncture needle 420; wherein, the puncture part is used for sending the anchor into the body after penetrating the tissue, and the pushing part is used for separating the anchor from the front end of the puncture needle, thereby realizing embedding of the anchor. Preferably, one end of suture 720 is secured within an anchor annular groove 711 provided in the middle of anchor 710.

Referring to fig. 2 and 5, the puncture needle 420 is provided with an annular groove 422, the anchor 710 is provided with an annular inner table 713, and the annular groove 422 is clamped with the annular inner table 713, so that the anchor 710 is prevented from being accidentally separated from the puncture needle 420. Further, the puncture needle 420 is provided with a triangular blade 421, the triangular blade 421 is more beneficial to penetrating tough tissues such as abdominal wall tissue A and fascia layers, the anchor 710 is provided with a conical surface 712, and the conical surface 712 can better guide to penetrate when the triangular blade 421 penetrates through the abdominal wall assembly A or abdominal tissue B.

Referring to fig. 1-3 and 6, further, the anchor pushing device comprises an upper handle shell 100 and a lower handle shell 200, the pushing component comprises a pushing tube 510 and a pushing block 520, and the pushing tube 510 is fixedly connected with the pushing block 520; the pushing component 500 is sleeved with a pressure spring 600, one end of the pressure spring 600 is contacted with a round table 522 arranged on the pushing block 520, and the whole pushing component is installed into the upper handle shell 100; the puncture element is fixed with the upper handle shell.

Specifically, the upper handle casing 100 is provided with a fixing slot 102, the puncture outfit includes a positioning block 410, the positioning block 410 is fixedly connected with the puncture needle 420 by means of insert injection molding or bonding, a positioning boss 411 is provided on the positioning block 410, and the fixing slot 102 is matched with the positioning boss 411 provided on the positioning block 410, so that the puncture outfit 400 is fixed relative to the upper handle casing 100. The push block 520 has an open slot 523 which cooperates with the guide rail platform 104 provided on the upper handle housing 100 to limit the circumferential rotation of the push member 500 relative to the upper handle housing 100 to only axial reciprocation. The other end of the compression spring 600 is pressed against the catching step 103 provided on the upper handle housing 100. The lower handle housing 200 is provided with an internal hexagonal bore 202 that is in interference fit with the locating post 105 provided with the upper handle housing 100.

Referring to fig. 1, 6-8, the anchor pushing device further includes a release push rod 300, and pressing the release push rod 300 pushes the pushing member 500 to separate the anchor member 700 from the needle member 400, thereby embedding the anchor portion 710. The release push rod 300 is installed at the other side of the upper handle housing 100, and the release push rod 300 is provided with a limit step 302 to cooperate with the guide groove 201 provided in the lower handle housing 200, so as to limit the rotation and the limit of the axial movement stroke of the release push rod 300. Further, the release push rod 300 is provided with a safety component, the safety component is used for locking the position of the pushing component, specifically, the safety component comprises a safety hook 301, after the release push rod 300 is pressed, the safety hook 301 is meshed with the safety clamping table 101 arranged on the upper handle shell 100, so that the position of the pushing component 500 is locked, the puncture needle 420 completely enters the pushing component 500, and accidental injury of the puncture needle 420 to tissues or medical staff can be avoided. When the safety hook 301 is pressed again, the pushing member 500 returns to the initial position under the action of the elastic force of the pressure spring 600, the triangular blade 421 provided on the puncture needle 420 is exposed, the anchor member 700 is installed, and the anchor member 700 can be pushed to the desired position continuously.

Referring to fig. 9-10, guide tube 800 is provided with a back-off 801 and a plurality of diagonal channels evenly distributed, preferably 4 diagonal channels 802. When the puncture hole of the abdominal wall tissue A is sutured, the guide tube 800 is inserted, and the inverted buckle 801 arranged on the guide tube 800 enhances the friction force with the puncture hole and improves the fixation stability. The suture is completed by inserting the anchor pushing devices into the inclined passages 802, respectively, implanting at least two anchor members 700, then pulling out the guide tube 800, and then knotting the suture 720. Preferably, the anchor member 700 is formed of a biodegradable material to reduce pain to the subsequent patient from suture removal.

Referring to fig. 11-12, the anchor pushing device is passed through abdominal wall tissue a and abdominal cavity tissue B, and after embedding the anchor member 700, the tissue to be pulled can be suspended by pulling the suture 720.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. The specification and examples are to be regarded in an illustrative manner only.

It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. An anchor pushing device comprising: the utility model is characterized in that the anchor component comprises an anchor and a suture, one end of the suture is fixed on the anchor,

the puncture part comprises a puncture needle, the pushing part comprises a hollow channel, the puncture part passes through the hollow channel, and the anchor nail is sleeved at the front end of the puncture needle; wherein, the puncture part is used for sending the anchor into the body after puncturing the tissue, and the pushing part is used for separating the anchor from the front end of the puncture needle, thereby realizing the embedding of the anchor;

the anchor pushing device further comprises an upper handle shell and a lower handle shell, and the puncture part is fixed with the upper handle shell; the pushing component comprises a pushing pipe and a pushing block, and the pushing pipe is fixedly connected with the pushing block; the pushing component is sleeved with a pressure spring, one end of the pressure spring is contacted with a round table arranged on the pushing block, and the whole pushing component is installed into the upper handle shell.

2. The anchor pushing device as set forth in claim 1, wherein the front end of the puncture needle is provided with an annular groove, the anchor is provided with an annular inner table, and the annular groove is engaged with the annular inner table.

3. The anchor pushing device of claim 1, wherein the spike is provided with a triangular blade and the anchor is provided with a conical surface.

4. The anchor delivery device of claim 1, further comprising a release plunger, wherein depressing the release plunger urges the delivery member to separate the anchor member from the needle member.

5. The anchor pushing device of claim 4, wherein the release push rod is provided with a limit step which cooperates with a guide slot provided in the lower handle housing to limit rotation of the release push rod and limit axial travel.

6. An anchor handling device as claimed in claim 4, wherein the release push rod is provided with a safety member for position locking of the handling member.

7. The anchor pushing device as set forth in claim 6, wherein the safety member comprises a safety hook which engages with a safety detent provided on the upper handle housing after the release push rod is pressed, thereby realizing the position locking of the pushing member; when the puncture needle is used again, the safety hook is pressed, the pushing component returns to the initial position under the action of the elasticity of the pressure spring, the triangular edge arranged on the puncture needle is exposed, the puncture needle is installed into the anchor component, and the anchor component can be pushed to the expected position continuously.

8. The anchor delivery device of any one of claims 1-7, wherein the anchor member is formed from a biodegradable material.