CN212140501U - Fibre ring stitching instrument - Google Patents

Abstract

The utility model discloses a fibre ring stitching instrument, it includes casing, handle and puncture head, and the casing is equipped with and stretches out the pipe, stretches out intraductal movable push rod of installing, and the handle articulates on the casing, and the handle is connected with movable push rod and drive movable push rod, and puncture head can dismantle and be connected to and stretch out the pipe, and puncture head includes anchor nail storehouse and sharp head pipe. The utility model discloses an put into two at least anchors in the anchor storehouse of puncture head to install the front end of extension bar with puncture head, rotate the handle, the bottom anchor release in with the anchor storehouse is held to handle drive activity push rod, withdraws movable push rod, and hold-down mechanism pushes down remaining anchor, makes in the remaining anchor the anchor of bottommost be located between sharp head pipe and the movable push rod in order to treat next release. The utility model discloses can implant the anchor nail at the multiple spot in the one-time use, still can tear as required and trade the puncture head, reduce the operation cost, improve operation efficiency.

Description

Fibre ring stitching instrument

Technical Field

The utility model relates to a fiber ring stitching instrument in the technical field of medical appliances.

Background

In recent years, with the improvement of living standard, the aging of population, various bad living habits, various pressures brought by life and work and various accidents are frequent, more and more injuries are caused to the body of people, particularly the spine, according to investigation, the number of population suffering from intervertebral disc protrusion diseases in China reaches more than 2 hundred million, and is gradually increased, and the age is also gradually younger. The spinal disease brings great misery and life burden for people's living standard, serious disc herniation must be through operation treatment, and operation treatment can certainly lead to the fact the injury to intervertebral disc and fibrous ring, present fibrous ring repair operation or used repeatedly, easy operation, poor effect, or disposable, can only sew up once, sew up and have the limitation, perhaps sew up many times, but the operation expense is expensive, brings very big economic pressure to the recovery of postoperative and patient's life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a fibre ring stitching instrument, its ability multiple spot implantation anchor nail.

According to a first aspect of the present invention, there is provided a device for suturing a fibrous ring, comprising a housing, the housing being provided with an extension tube, a movable push rod being mounted in the extension tube; the handle is hinged to the shell and connected with the movable push rod and drives the movable push rod; the puncture head, the puncture head can be dismantled and be connected to the front end that stretches out the pipe, the puncture head includes anchor nail storehouse and tip pipe, be equipped with the accommodation space that can hold two at least anchors in the anchor storehouse, the front end of anchor storehouse lower part is equipped with the front end through-hole that is used for installing the tip pipe, the rear end of anchor storehouse lower part is equipped with can hold movable push rod male rear end through-hole, the top of anchor nail storehouse is equipped with hold-down mechanism, the bottom of anchor nail storehouse is equipped with the fluting, the bottom of tip pipe is equipped with the gap along axial direction, the gap of tip pipe aligns with the fluting of anchor nail storehouse

According to the utility model discloses the embodiment of the first aspect, furtherly, the front end that stretches out the pipe is equipped with the screw thread blind hole, the rear end of anchor nail storehouse is equipped with the external screw thread, anchor nail storehouse and stretch out a pipe threaded connection.

According to the utility model discloses the embodiment of the first aspect, furtherly, be equipped with the tubular metal resonator in the extension tube, movable push rod is located the tubular metal resonator, the front end of tubular metal resonator stretches out from the front end that stretches out the pipe, the extension of tubular metal resonator inserts and fixes in the rear end through-hole of anchor nail storehouse.

According to the utility model discloses an in the embodiment of the first aspect, furtherly, be equipped with the cavity in the casing, the double-phase inboard of cavity is equipped with the spout respectively, the both sides of activity push rod are equipped with direction arch, each direction arch difference slidable mounting to corresponding spout.

According to the utility model discloses the embodiment of the first aspect, furtherly, the rear of cavity is equipped with the direction through-hole, the rear end activity of activity push rod inserts in the direction through-hole.

According to the utility model discloses first aspect embodiment, furtherly, still include the spring, the one end and the movable push rod of spring are connected, the other end butt of spring is on the leading flank of cavity.

According to the utility model discloses first aspect embodiment, furtherly, the casing includes two half shells, two half shell symmetric connection, each all be equipped with the hinge hole on the half shell, the both sides of handle are equipped with the articulated shaft respectively, the both sides articulated shaft of handle articulates the hinge hole at two half shells respectively.

According to the utility model discloses an in the embodiment of the first aspect, furtherly, be equipped with the square hole on the activity push rod, the top of handle stretches into in the cavity, the top of handle is equipped with the handle slider, the handle slider insert in the square hole and with square hole clearance fit.

According to the utility model discloses first aspect embodiment, furtherly, be equipped with the locking structure between handle and the casing, the locking structure includes the knob, the knob includes the rotation axis and ends the commentaries on classics piece, it is connected with the terminal surface of rotation axis through easy-to-break portion to end the commentaries on classics piece, it places the hole to be equipped with the knob on hand, the hole is placed including the hole and the rotation hole that stop that are linked together to the knob, be equipped with the knob mounting hole on the casing, the rotation axis inserts after running through the knob mounting hole and rotates the hole, it inserts in the hole to stop the commentaries on classics piece.

According to the utility model discloses first aspect embodiment, furtherly, still include two at least anchor nails, the anchor nail is the cylinder, one side of anchor nail is equipped with first recess, the opposite side of anchor nail is equipped with two second recesses, first recess forms two anchor nail through-holes with two second recess intercommunications respectively.

The utility model has the advantages that: the utility model discloses an put into two at least anchors in the anchor storehouse of puncture head to install the front end of extension bar with puncture head, rotate the handle, the bottom anchor release in with the anchor storehouse is held to handle drive activity push rod, withdraws movable push rod, and hold-down mechanism pushes down remaining anchor, makes in the remaining anchor the anchor of bottommost be located between sharp head pipe and the movable push rod in order to treat next release. The utility model discloses can implant the anchor nail at the multiple spot in the one-time use, still can tear as required and trade the puncture head, reduce the operation cost, improve operation efficiency.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a half sectional view of the present invention;

fig. 3 is a front sectional view of the present invention;

FIG. 4 is an enlarged schematic view of circle a in FIG. 1;

fig. 5 is a front sectional view of the puncture head of the present invention;

fig. 6 is a bottom view of the puncture head of the present invention;

FIG. 7 is an enlarged schematic view of circle b in FIG. 3;

fig. 8 is a front cross-sectional view of the anchor of the present invention;

fig. 9 is a left side view of the anchor according to the present invention;

FIG. 10 is a schematic structural view of the movable push rod of the present invention;

fig. 11 is a front view of the handle of the present invention;

fig. 12 is a side view of the handle of the present invention;

fig. 13 is a schematic structural diagram of the middle knob according to the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 13, an apparatus for suturing an annulus fibrosus according to an embodiment of the present invention includes a housing 10, a handle 20, and a puncture tip 30. The piercing head 30 includes an anchor cartridge 31 and a pointed tube 32, at least two anchors 60 are provided in the anchor cartridge 31, and the anchors 60 can be passed out of the pointed tube 32 to suture the affected part. Preferably, pointed tube 32 has a sharp bevel to facilitate penetration into the affected area for suturing.

The shell 10 is provided with an extension tube 11, a movable push rod 12 is arranged in the extension tube 11, the puncture head 30 is detachably connected to the front end of the extension tube 11, and the movable push rod 12 can extend into an anchor bin 31 of the puncture head 30 to push out the anchor 60. Referring to fig. 3 and 7, in the present embodiment, the front end of the extension tube 11 is provided with a threaded blind hole 13, the rear end of the anchor bin 31 is provided with an external thread, and the anchor bin 31 is in threaded connection with the extension tube 11. Furthermore, the rear end of the lower part of the anchor bin 31 is provided with a rear end through hole 312 into which the movable push rod 12 can be inserted, the metal tube 14 is arranged in the extension tube 11, the movable push rod 12 is positioned in the metal tube 14, the front end of the metal tube 14 extends out from the front end of the extension tube 11, and the extending part of the metal tube 14 is inserted into the rear end through hole 312 of the anchor bin 31 for fixation. The metal pipe 14 is aligned with the through hole at the rear end of the anchor bin 31, and then the rear end of the anchor bin 31 is inserted into the threaded blind hole 13 for connection, so that the installation of the puncture head is completed.

The anchor magazine 31 is provided therein with an accommodating space capable of accommodating at least two anchors 60, and specifically, referring to fig. 4, the anchors 60 are arranged in order along the longitudinal direction of the accommodating space in a state of being kept horizontal, the axial directions of the anchors are parallel, and the axial direction of the anchors 60 is parallel to the axial direction of the pointed tube 32. The front end of the lower part of the anchor nail box 31 is provided with a front end through hole 311 for installing the sharp-pointed tube 32, and the anchor nail 60 can enter the sharp-pointed tube 32 through the front end through hole 311 and finally pierce an affected part. The top of the anchor cartridge 31 is provided with a pressing mechanism, preferably a spring piece 313, and when the bottommost anchor 60 is pushed away, the anchor above the pressing mechanism can be pressed down by the spring piece 313, so that the movable push rod can push away the anchor 60. In addition, since the anchors 60 are strung together by the suture, the bottom of the anchor bin 31 is provided with the notches 314, and correspondingly, the bottom of the pointed tube 32 is provided with the slits 321 in the axial direction, and the slits 321 of the pointed tube 32 are aligned with the notches 314 of the anchor bin 31, so that the suture connected to the anchor 60 can move through the notches 314 of the slits 321 when the anchor 60 moves through the piercing head.

Referring to fig. 8 to 9, optionally, the anchor 60 is a cylinder, one side of the anchor 60 is provided with a first groove 61, the other side of the anchor 60 is provided with two second grooves 62, and the first groove 61 is respectively communicated with the two second grooves 62 to form two anchor through holes. The suture is passed through two through holes in the anchor 60 in sequence to thread the anchor 60 over the suture. After the suture is serially connected with at least two anchors 60, the anchors 60 are installed into the anchor cartridge 31, and the suture is passed out of the slot 314 of the anchor cartridge 31 at the level of the slit 321 of the pointed tube 32. Since the suture can be serially connected with a plurality of the anchoring bolts 60, one suture can be sutured and knotted at one time, thereby reducing the operation time and the workload of doctors.

The handle 20 is connected with the movable push rod 12 and drives the movable push rod 12, and the handle 20 is hinged on the housing 10. Alternatively, the housing 10 comprises two half-shells symmetrically connected to each other, each half-shell being provided with a hinge hole for mounting the handle 20. Hinge shafts 21 are respectively arranged at two sides of the handle 20, and the hinge shafts 21 at two sides of the handle 20 are respectively hinged at the hinge holes of the two half shells. A cavity 40 is formed in the housing 10, and the top end of the handle 20 is inserted into the cavity 40. The movable push rod 12 is provided with a square hole 121, the top end of the handle 20 is provided with a handle slider 23, and the handle slider 23 is inserted into the square hole 121 and is in clearance fit with the square hole 121. When the handle 20 is pushed, the handle 20 pushes the movable push rod 12 to advance to push out the anchor 60 through the cooperation of the handle slider 23 and the square hole 121. Preferably, the handle 20 is provided with a circular hole so that the operator can place the index finger in the circular hole for gripping.

And a spring 42, wherein one end of the spring 42 is connected with the movable push rod 12, and the other end of the spring 42 abuts against the front side surface of the cavity 40. The movable push rod 12 penetrates through a central hole of the spring 42, when the handle 20 is pushed, the spring 42 is compressed, and the movable push rod 12 extends forwards; when the handle 20 is released, the spring 42 releases the elastic potential energy to reset the movable push rod 12, so that the front end of the movable push rod 12 can exit the anchor cartridge 31, and the next anchor 60 can fall to the lower part of the accommodating space, thereby facilitating the subsequent suture operation without manually resetting the handle 20.

Preferably, the two opposite inner sides of the cavity 40 are respectively provided with a sliding slot 411, the two sides of the movable push rod 12 are provided with a guide protrusion 412, each guide protrusion 412 is respectively slidably mounted to the corresponding sliding slot 411, and the axial direction of the sliding slot 411 is parallel to the axial direction of the metal tube 14. Because the guide protrusion can only reciprocate along the sliding slot 411, the movable push rod 12 can only move along the direction parallel to the sliding slot 411, thereby ensuring the smooth movement of the movable push rod 12 in the metal tube 14 and reducing the friction between the movable push rod 12 and the metal tube 14. Furthermore, a guide through hole is arranged behind the cavity 40, the rear end of the movable push rod 12 is movably inserted into the guide through hole, the guide through hole is overlapped with the axial direction of the metal pipe 14, namely the guide through hole has a limiting effect on the movable push rod 12.

Referring to fig. 11 to 13, a locking structure is provided between the handle 20 and the housing 10, the locking structure includes a knob 50, the knob 50 includes a rotating shaft 51 and a rotation stop block 52, the rotation stop block 52 is connected to an end surface of the rotating shaft 51 through a frangible portion 53, a knob placing hole 22 is provided on the handle 20, the knob placing hole 22 includes a rotation stop hole 222 and a rotation hole 221 communicated with each other, a knob mounting hole is provided on the housing 10, the rotating shaft 51 penetrates through the knob mounting hole and then is inserted into the rotation hole 221, and the rotation stop block 52 is inserted into the rotation stop hole 222. In the present embodiment, the rotation stopping hole 222 is a square hole, and the rotation stopping block 52 is a square block. Since the breakable part 53 has a small cross section, when the rotation shaft 51 is rotated by force, the rotation stopper 52 is stopped, and the breakable part 53 is broken by force, so that the handle 20 can be rotated freely. Further, the other end surface of the handle 20 away from the rotation hole 221 is provided with a rotation small hole 223, the rotation small hole 223 is communicated with the rotation stopping hole 222, and the size of the rotation small hole 223 is smaller than that of the rotation stopping hole 222. Accordingly, the rotation stopper 52 is provided with a small rotation shaft 54, and the small rotation shaft 54 can be inserted into the rotation hole 223. In addition, the rotating shaft 51 is provided with a pull ring-shaped grip portion to facilitate the user to rotate the rotating shaft 51.

The utility model discloses a use method as follows: after the plurality of anchor bolts 60 are connected in series using the suture, the plurality of anchor bolts 60 are sequentially arranged in the anchor cartridge. After the puncture tip 30 is attached to the tip of the extension rod 11, the knob 50 is turned, the rotation shaft 51 is turned, the stopper 52 is stopped, and the breakable portion is broken. Holding the shell 10 and inserting fingers into the holding circular hole, pressing the handle 20, the handle 20 pushing the movable push rod 12 to extend forwards, and the movable push rod 12 pushing the anchor 60 out of the anchor cartridge 31 and the pointed tube 32. Then the operator releases his hand, the movable push rod 12 is reset under the action of the spring 42, the front end of the movable push rod 12 exits the anchor cartridge 31, at this time, the elastic sheet 313 presses all the anchors in the anchor cartridge 31 downwards, the anchor 60 at the bottommost part is aligned with the pointed tube 32, and the next extension of the movable push rod 12 is waited. When the anchor 60 in the anchor bin 31 is completely used up, the penetration head 30 is disassembled, and the penetration head 30 can be replaced with a new one. In addition, since the knob 50 is provided between the handle 20 and the housing 10 to fix their relative positions, it can be judged whether the stapler has been used before by the knob 50, and all the staplers are ensured to be disposable, ensuring the hygiene in the surgical operation.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims (10)

1. An annulus fibrosus stapler, comprising:

the device comprises a shell (10), wherein the shell (10) is provided with an extension pipe (11), and a movable push rod (12) is arranged in the extension pipe (11);

the handle (20), the said handle (20) is hinged on body (10), the said handle (20) is connected with movable push rod (12) and drives the movable push rod (12);

puncture head (30), puncture head (30) detachable connection is to the front end of extension tube (11), puncture head (30) are including anchor nail storehouse (31) and sharp head pipe (32), be equipped with the accommodation space that can hold two at least anchors (60) in anchor nail storehouse (31), the front end of anchor nail storehouse (31) lower part is equipped with front end through-hole (311) that are used for installing sharp head pipe (32), the rear end of anchor nail storehouse (31) lower part is equipped with can hold movable push rod (12) male rear end through-hole (312), the top of anchor nail storehouse (31) is equipped with hold-down mechanism, the bottom of anchor nail storehouse (31) is equipped with fluting (314), the bottom of sharp head pipe (32) is equipped with gap (321) along axial direction, the slot (321) of sharp head pipe (32) and fluting (314) of anchor nail storehouse (31) align.

2. The annulus fibrosus stapler of claim 1, wherein: the front end of the extension tube (11) is provided with a threaded blind hole (13), the rear end of the anchor nail bin (31) is provided with an external thread, and the anchor nail bin (31) is in threaded connection with the extension tube (11).

3. The annulus fibrosus stapler according to claim 1 or 2, wherein: a metal pipe (14) is arranged in the extension pipe (11), the movable push rod (12) is positioned in the metal pipe (14), the front end of the metal pipe (14) extends out of the front end of the extension pipe (11), and the extension part of the metal pipe (14) is inserted into a rear end through hole (312) of the anchor nail bin (31) to be fixed.

4. The annulus fibrosus stapler of claim 1, wherein: a cavity (40) is arranged in the shell (10), two opposite inner sides of the cavity (40) are respectively provided with a sliding groove (411), two sides of the movable push rod (12) are provided with guide protrusions (412), and the guide protrusions (412) are respectively installed to the corresponding sliding grooves (411) in a sliding mode.

5. The annulus fibrosus stapler of claim 4, wherein: a guide through hole is formed in the rear of the cavity (40), and the rear end of the movable push rod (12) is movably inserted into the guide through hole.

6. The annulus fibrosus stapler of claim 4, wherein: the anti-theft device is characterized by further comprising a spring (42), one end of the spring (42) is connected with the movable push rod (12), and the other end of the spring (42) is abutted against the front side face of the cavity (40).

7. The annulus fibrosus stapler of claim 4, wherein: casing (10) include two half shells, two half shell symmetric connection, each all be equipped with the hinge hole on the half shell, the both sides of handle (20) are equipped with articulated shaft (21) respectively, the both sides articulated shaft (21) of handle (20) articulate the hinge hole at two half shells respectively.

8. The annulus fibrosus stapler of claim 7, wherein: the movable push rod (12) is provided with a square hole (121), the top end of the handle (20) extends into the cavity (40), the top end of the handle (20) is provided with a handle sliding block (23), and the handle sliding block (23) is inserted into the square hole (121) and is in clearance fit with the square hole (121).

9. The annulus fibrosus stapler of claim 1, wherein: be equipped with locking structure between handle (20) and casing (10), locking structure includes knob (50), knob (50) are including rotation axis (51) and rotation stopping block (52), rotation stopping block (52) are connected with the terminal surface of rotation axis (51) through easy-to-break portion (53), it places hole (22) to be equipped with the knob on handle (20), hole (22) are placed to the knob is including the rotation stopping hole (222) and the rotation hole (221) that are linked together, be equipped with the knob mounting hole on casing (10), insert rotation hole (221) after the rotation axis (51) runs through the knob mounting hole, rotation stopping block (52) insert in rotation stopping hole (222).

10. The annulus fibrosus stapler of claim 1, wherein: the novel anchor rod is characterized by further comprising at least two anchor rods (60), wherein the anchor rods (60) are cylindrical bodies, a first groove (61) is formed in one side of each anchor rod (60), two second grooves (62) are formed in the other side of each anchor rod (60), and the first grooves (61) are communicated with the two second grooves (62) respectively to form two anchor rod through holes.

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