CN116327266A - Pathological sample acquisition device - Google Patents

Abstract

The invention relates to the technical field of medical equipment, and provides a pathological sample acquisition device, which comprises: the device comprises a sleeve, wherein a first end of the sleeve is connected with a grabbing clamp, and the grabbing clamp is used for acquiring a pathological sample; the guide pin is sleeved in the sleeve, the first end of the guide pin penetrates through the grabbing clamp, the second end of the guide pin penetrates through the sleeve, and the guide pin can stretch and retract along the sleeve; the driving mechanism is partially sleeved between the sleeve and the guide pin and is connected with the grabbing pliers so as to drive the grabbing pliers to act under the action of the driving mechanism. According to the grabbing clamp, the sleeve and the guide needle are arranged, so that when the pathological tissues in the vertebral body are acquired, the guide needle is used for positioning under the minimally invasive incision, the grabbing clamp is placed at the set position, the incision is not required to be enlarged, and the grabbing clamp can be placed at the set position under the naked eyes, so that unnecessary injury to a human body is avoided, and the pain of a patient is relieved.

Description

Pathological sample acquisition device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a pathological sample acquisition device.

Background

Minimally invasive is a development trend of spinal surgery, percutaneous pedicle screw placement has become a common surgical mode, and pedicle screw tunnels can be minimally invasive with screw taps of 4-6mm in diameter before screw placement. When the tissue in the vertebral body or the pedicle needs to be scraped or the pathological biopsy is performed, the current grabbing forceps cannot be placed in a minimally invasive mode, the incision needs to be enlarged, and the forceps are placed under naked eyes. Therefore, the existing instruments cannot be used for performing operation to achieve a minimally invasive effect, and unnecessary damage is caused to a patient.

Disclosure of Invention

The invention provides a pathological sample acquisition device which is used for solving the defect that a grabbing clamp cannot be placed under a minimally invasive incision in the prior art.

The invention provides a pathological sample acquisition device, comprising: the device comprises a sleeve, wherein a first end of the sleeve is connected with a grabbing clamp, and the grabbing clamp is used for acquiring a pathological sample; the guide pin is sleeved in the sleeve, the first end of the guide pin penetrates through the grabbing clamp, the second end of the guide pin penetrates through the sleeve, and the guide pin can stretch and retract along the sleeve; the driving mechanism is partially sleeved between the sleeve and the guide pin and is connected with the grabbing pliers so as to drive the grabbing pliers to act under the action of the driving mechanism.

According to the present invention, there is provided a pathological sample acquiring device, the grasping forceps including: the first grabbing part penetrates through the wall surface of the sleeve and extends out of the sleeve, and the first grabbing part is in rotary connection with part of the driving mechanism; the second grabbing part is arranged opposite to the first grabbing part, the second grabbing part is connected with the sleeve, and the first end of the guide pin penetrates through the second grabbing part; under the action of the driving mechanism, the first grabbing part can be far away from or attached to the second grabbing part so as to clamp a pathological sample.

According to the pathological sample acquisition device provided by the invention, at least one of the two surfaces of the first grabbing part and the second grabbing part, which are away from each other, is provided with a plurality of cutting edges.

According to the pathological sample acquisition device provided by the invention, a plurality of arc-shaped notches are formed in the surface, facing away from the first grabbing part and the second grabbing part, of the first grabbing part, and the two ends of each arc-shaped notch form the cutting edge.

According to the pathological sample acquiring device provided by the invention, the surfaces of the first grabbing part and the second grabbing part, which are opposite to each other, are provided with the sawtooth structures along the circumferential direction of the first grabbing part or the second grabbing part.

According to the present invention, there is provided a pathological sample acquiring device, the driving mechanism comprising: the first end of the first connecting piece penetrates through the sleeve and is rotationally connected with the first grabbing part, and the second end of the guide pin penetrates through the first connecting piece.

According to the present invention, there is provided a pathology sample acquisition device, the driving mechanism further comprising: the first handle and the second handle are arranged at an angle, the first handle is connected with the second end of the first connecting piece, and the second handle is hinged with the first handle; when the first handle and the second handle move in opposite directions, the first handle can drive the first grabbing part to move in the direction away from the second grabbing part, and when the first handle and the second handle move in opposite directions, the first handle can drive the first grabbing part to move in the direction close to the second grabbing part.

According to the invention, there is provided a pathology sample acquisition device, further comprising: the pair of second connecting pieces are arranged at one end of the first grabbing part connected with the first connecting pieces, and the two second connecting pieces are oppositely arranged; and the two ends of the rotating shaft are respectively connected with the pair of second connecting pieces, and the first connecting pieces are rotationally connected with the rotating shaft.

According to the pathological sample acquisition device provided by the invention, the surface of the grabbing clamp is provided with a plurality of cutting edges.

According to the pathological sample acquisition device provided by the invention, the pathological sample acquisition device further comprises a sleeve sleeved outside the first connecting piece and the sleeve.

According to the grabbing clamp provided by the invention, through the sleeve and the guide needle, when the pathological tissues in the vertebral body are acquired, the guide needle is utilized for positioning under the minimally invasive incision, the grabbing clamp is placed at the set position without expanding the incision, and the grabbing clamp is placed at the set position under the condition of naked eyes, so that unnecessary injury to a human body is avoided, and the pain of a patient is relieved.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a pathological sample acquiring device according to the present invention;

FIG. 2 is one of the schematic structural views of the grasping forceps shown in FIG. 1;

FIG. 3 is a second schematic view of the structure of the grasping forceps shown in FIG. 1;

FIG. 4 is a third schematic view of the structure of the grasping forceps shown in FIG. 1;

reference numerals:

10: a sleeve; 20: gripping pliers; 21: a first grasping portion; 22: a second grasping portion; 23: a second connector; 24: a rotating shaft; 25: a saw tooth structure; 30: a guide pin; 40: a first connector; 41: a first handle; 42: a second handle; 50: a sleeve; 211: and a cutting edge.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, 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.

The features of the invention "first", "second" and the like in the description and in the claims may be used for the explicit or implicit inclusion of one or more such features. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

The pathological sample acquiring device of the present invention is described below with reference to fig. 1 to 4.

As shown in fig. 1, in an embodiment of the present invention, a pathology sample acquisition apparatus includes: cannula 10, grasping forceps 20, guide pin 30, and a drive mechanism. The first end of sleeve pipe 10 is connected with snatchs pincers 20, snatchs pincers 20 and is used for acquireing pathological sample, and guide pin 30 cover is located in the sleeve pipe 10, and the first end of guide pin 30 runs through snatchs pincers 20, and the sleeve pipe 10 is run through to the second end of guide pin 30, and guide pin 30 can stretch out and draw back along sleeve pipe 10. Part of the driving mechanism is sleeved between the sleeve 10 and the guide pin 30, and the part is connected with the grabbing clamp 20 so as to drive the grabbing clamp 20 to act under the action of the driving mechanism.

Specifically, when obtaining the pathological tissue in the vertebral body to the backbone, pedicle screw way is the incision of wicresoft before putting into the screw, and the length of wicresoft's incision is 15mm generally, in prior art, because the incision is less, can't fix a position grasping forceps, so need open the incision big, under the eyes stretch into the nail way with grasping forceps to scrape pathological tissue, infected tissue, necrotic tissue, sclerotic bone, tumour and diolame etc. in nail way front end is got, in order to carry out pathological analysis. In this embodiment, the pathology sample includes: for convenience of description, the following tissues are used to replace the above-mentioned various pathological samples.

In this embodiment, the cannula 10 is a hollow tube, and the grasping forceps 20 are connected to one end of the cannula 10. The guide pin 30 is sleeved in the sleeve 10, the first end of the guide pin 30 extends to the outside of the grabbing clamp 20, the second end of the guide pin 30 extends to the outside of the sleeve 10, and the first end of the guide pin 30 can stretch along the sleeve 10 by pulling the second end of the guide pin 30.

In the actual use process, after the screw tap of the minimally invasive pedicle screw is screwed out in the original incision, the guide pin 30 used in the screw tap is reserved. The guide pin 30 drives the grabbing clamp 20 to be placed into the nail path together, the second end of the guide pin 30 is pulled after the grabbing clamp 20 is placed at the set position under the perspective of the C-shaped arm, the first end of the guide pin 30 extends into the grabbing clamp 20 or the sleeve 10, and the driving mechanism drives the grabbing clamp 20 to act so as to obtain a pathological sample.

Further, in the embodiment of the present invention, the surface of the grasping forceps 20 is provided with a cutting edge, so that the grasping forceps 20 can scrape the tissue when the driving mechanism drives the grasping forceps 20 to act.

Further, the grasping forceps 20 may also include a pair of oppositely disposed grasping portions, and the driving mechanism is connected to one of the grasping portions, and when the driving mechanism is operated, the driving mechanism drives one of the grasping portions to move in a direction away from or close to the other grasping portion, so as to grasp tissue.

According to the grabbing clamp provided by the embodiment of the invention, through the arrangement of the sleeve and the guide needle, when the pathological tissues in the vertebral body are acquired, the guide needle is utilized for positioning under the minimally invasive incision, the grabbing clamp is placed at the set position without expanding the incision, and the grabbing clamp is placed at the set position under the condition of naked eyes, so that unnecessary injury to a human body is avoided, and the injury to patients is reduced.

As shown in fig. 2, in the embodiment of the present invention, the grasping forceps 20 include: a first grip portion 21 and a second grip portion 22. The first grabbing portion 21 penetrates through the wall surface of the sleeve 10 and extends to the outside of the sleeve 10, the first grabbing portion 21 is connected with a part of the driving mechanism in a rotating mode, the second grabbing portion 22 is arranged opposite to the first grabbing portion 21, the second grabbing portion 22 is connected with the sleeve 10, the first end of the guide pin 30 penetrates through the second grabbing portion 22, and under the action of the driving mechanism, the first grabbing portion 21 can be far away from or attached to the second grabbing portion 22 to clamp tissues.

Specifically, in the present embodiment, the second gripping portion 22 is connected to the sleeve 10, the second gripping portion 22 is fixed, the first gripping portion 21 extends to the outside of the sleeve 10 through the wall surface of the sleeve 10, the first gripping portion 21 is hinged to the driving mechanism, and the first gripping portion 21 can move in a direction away from or close to the second gripping portion 22 under the action of the driving mechanism. In the actual use process, after the screw tap of the minimally invasive pedicle screw is screwed out in the original incision, the guide pin 30 used in the screw tap is reserved. The guide pin 30 drives the grabbing clamp 20 to be placed into a nail path together, the second end of the guide pin 30 is pulled after the grabbing clamp 20 is placed at a set position under C-shaped arm perspective, the first end of the guide pin 30 extends into the grabbing clamp 20, the driving mechanism drives the first grabbing part 21 to move in a direction away from the second grabbing part 22, so that the two grabbing parts are separated, and when tissue is located between the two grabbing parts, the driving mechanism drives the first grabbing part 21 to move in a direction close to the second grabbing part 22 so as to clamp the tissue.

In the embodiment of the present invention, at least one of the two surfaces of the first grip portion 21 and the second grip portion 22 facing away from each other is provided with a plurality of cutting edges 211.

Specifically, in the present invention, the surfaces of the first and second grasping portions 21 and 22 facing away from each other are outer surfaces, and the surfaces of the first and second grasping portions 21 and 22 facing each other are inner surfaces. The outer surface of the first grabbing portion 21 and/or the second grabbing portion 22 is provided with a plurality of cutting edges 211, after the grabbing pliers 20 are placed into the nail canal, the first grabbing portion 21 and/or the second grabbing portion 22 can scrape tissues on the spine of the front end of the nail canal, meanwhile, the first grabbing portion 21 and the second grabbing portion 22 are matched, the tissues on the spine of the front end of the nail canal can be clamped, and the functionality of the grabbing pliers 20 is enhanced.

According to the pathological sample acquisition device provided by the embodiment of the invention, the grabbing pliers are arranged into the structure of the two grabbing parts, so that the tissue can be scraped by utilizing the cutting edge on the first grabbing part, and the tissue can be clamped by utilizing the clamping force between the two grabbing parts, so that the pathological sample acquisition device has multiple functions, and the applicability of the pathological sample acquisition device is improved.

Further, as shown in fig. 3, in the embodiment of the present invention, the surface of the first grabbing portion 21 facing away from the second grabbing portion 22 is provided with a plurality of arc-shaped notches, and two ends of the arc-shaped notches form cutting edges 211.

Specifically, in this embodiment, an arc-shaped notch is machined on the outer surface of the first grabbing portion 21, and cutting edges 211 are formed at two ends of the arc-shaped notch, so that when the first grabbing portion 21 and the second grabbing portion 22 are placed in the nail path, the cutting edges 211 on the first grabbing portion 21 can scrape tissue at the front end of the nail path.

As shown in fig. 4, in the embodiment of the present invention, the surfaces of the first grip portion 21 and the second grip portion 22 that are opposite to each other are provided with a serration structure 25 in the circumferential direction of the first grip portion 21 or the second grip portion 22.

Specifically, in this embodiment, the inner surface of the first gripping portion 21 and the inner surface of the second gripping portion 22 are provided with saw tooth structures 25 along respective circumferential directions, and the saw tooth structures 25 have tips, which can facilitate scraping of tissues on the spine.

Further, in other embodiments of the present invention, in the case that the inner surfaces of the first grip portion 21 and the second grip portion 22 are provided with the serration structures 25, the outer surface of the first grip portion 21 or the second grip portion 22 may also be provided with the cutting edges 211, thereby enabling the grasping forceps 20 to have various uses.

As shown in fig. 1, in the embodiment of the present invention, the driving mechanism includes a first connecting member 40, a first end of the first connecting member 40 penetrates through the sleeve 10 and is rotatably connected to the first grabbing portion 21, and a second end of the guide pin 30 penetrates through the first connecting member 40.

Specifically, the first end of the first connecting piece 40 is sleeved in the sleeve 10 and is rotationally connected with the first grabbing portion 21, and when the first connecting piece 40 is pulled to move towards the second end close to the guide pin 30, the first connecting piece 40 can drive the first grabbing portion 21 to move towards the direction away from the second grabbing portion 22; when the first connecting member 40 is pushed to move in a direction approaching the first end of the guide pin 30, the first connecting member 40 can drive the first grabbing portion 21 to move in a direction approaching the second grabbing portion 22, so as to clamp the tissue. Further, in the present embodiment, the guide pin 30 is sleeved in the first connecting piece 40, the first end of the guide pin 30 penetrates through the first connecting piece 40 and the second grabbing portion 22 and extends to the outside of the second grabbing portion 22, and the second end of the guide pin 30 extends to the outside of the first connecting piece 40, so that after the grabbing clamp 20 is placed in the nail path, the guide pin 30 slides along the first connecting piece 40 into the second grabbing portion 22 or the sleeve 10.

As shown in fig. 1, in the embodiment of the present invention, the driving mechanism further includes: a first handle 41 and a second handle 42. The first handle 41 and the second handle 42 are arranged at an angle, the first handle 41 is connected with the second end of the first connecting piece 40, the second handle 42 is hinged with the first handle 41, and when the first handle 41 and the second handle 42 move in opposite directions, the first handle 41 can drive the first grabbing part 21 to move in a direction away from the second grabbing part 22; when the first handle 41 and the second handle 42 move away from each other, the first handle 41 can drive the first gripping portion 21 to move in a direction approaching the second gripping portion 22.

Specifically, in the actual use process, after the screw tap of the minimally invasive pedicle screw is screwed out in the original minimally invasive incision, the guide pin 30 used in the screw tap is reserved. The guide pin 30 drives the grasping forceps 20 to be placed into the nail path together, and after the grasping forceps 20 are placed at the set position under the perspective of the C-arm, the second end of the guide pin 30 is pulled, so that the first end of the guide pin 30 extends into the grasping forceps 20 or the sleeve 10. The operator holds the first handle 41 and the second handle 42 to rotate, and can drive the first grabbing portion 21 to rotate, so that the tissue is scraped by the cutting edge 211 on the outer surface of the first grabbing portion 21. When the operator holds the first handle 41 and the second handle 42 and moves the first handle 41 and the second handle 42 in opposite directions, the first handle 41 drives the first grasping portion 21 to rotate in a direction away from the second grasping portion 22, so that the first grasping portion 21 and the second grasping portion 22 are opened, when tissue is located between the first grasping portion 21 and the second grasping portion 22, the operator releases the force applied to the first handle 41 and the second handle 42, the first handle 41 and the second handle 42 are reset, and the first grasping portion 21 also starts to reset and moves in a direction approaching the second grasping portion 22, so that the tissue located between the first grasping portion 21 and the second grasping portion 22 is grasped.

As shown in fig. 2, in an embodiment of the present invention, the pathology sample acquisition apparatus further includes: a pair of second connection members 23 and a rotation shaft 24. The pair of second connecting members 23 are disposed at one end of the first grasping portion 21 connected to the first connecting member 40, and the two second connecting members 23 are disposed opposite to each other. Both ends of the rotation shaft 24 are respectively connected with a pair of second connecting pieces 23, and the first connecting piece 40 is rotatably connected with the rotation shaft 24.

Specifically, when the operator holds the first handle 41 and the second handle 42 and applies force to the first handle 41 and the second handle 42, the first handle 41 drives the first connecting member 40 to move away from the grasping forceps 20 when the operator urges the first handle 41 and the second handle 42 to move toward each other, the first connecting member 40 drives the rotation shaft 24 to rotate, and the rotation shaft 24 drives the first grasping portion 21 to rotate when rotating, so that the first grasping portion 21 is separated from the second grasping portion 22. Accordingly, when the operator releases the force on the first and second handles 41, 42, the first and second handles 41, 42 move away from each other, and the first link 40 moves toward the first end of the guide pin 30, driving the first grasping portion 21 to move toward the second grasping portion 22, so as to grasp tissue.

As shown in fig. 1, in the embodiment of the present invention, the pathological sample acquiring device further includes a sleeve 50, and the sleeve 50 is sleeved on the first connecting member 40 and the outside of the sleeve 10.

Specifically, in the present embodiment, the first end of the first connecting member 40 is sleeved in the sleeve 10 and connected to the first grasping portion 21 of the grasping forceps 20, the sleeve 50 is sleeved outside the first connecting member 40 and the sleeve 10, and the first connecting member 40 can slide along the sleeve 50 when the first handle 41 and the second handle 42 move toward each other.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A pathology sample acquisition apparatus, comprising:

the device comprises a sleeve, wherein a first end of the sleeve is connected with a grabbing clamp, and the grabbing clamp is used for acquiring a pathological sample;

the guide pin is sleeved in the sleeve, the first end of the guide pin penetrates through the grabbing clamp, the second end of the guide pin penetrates through the sleeve, and the guide pin can stretch and retract along the sleeve;

the driving mechanism is partially sleeved between the sleeve and the guide pin and is connected with the grabbing pliers so as to drive the grabbing pliers to act under the action of the driving mechanism.

2. The pathological sample acquiring device according to claim 1, wherein the grasping forceps comprise:

the first grabbing part penetrates through the wall surface of the sleeve and extends out of the sleeve, and the first grabbing part is in rotary connection with part of the driving mechanism;

the second grabbing part is arranged opposite to the first grabbing part, the second grabbing part is connected with the sleeve, and the first end of the guide pin penetrates through the second grabbing part;

under the action of the driving mechanism, the first grabbing part can be far away from or attached to the second grabbing part so as to clamp a pathological sample.

3. The pathological sample acquiring device according to claim 2, wherein at least one of the two surfaces of the first gripping portion and the second gripping portion facing away from each other is provided with a plurality of cutting edges.

4. A pathological sample acquiring device according to claim 3, wherein the surface of the first gripping portion facing away from the second gripping portion is provided with a plurality of arcuate notches, and the two ends of the arcuate notches form the cutting edge.

5. A pathological sample acquiring device according to claim 2 or 3, wherein surfaces of the first gripping portion and the second gripping portion which are opposed to each other are provided with a serration structure along a circumferential direction of the first gripping portion or the second gripping portion.

6. The pathology sample acquisition device of claim 2, wherein the driving mechanism comprises:

the first end of the first connecting piece penetrates through the sleeve and is rotationally connected with the first grabbing part, and the second end of the guide pin penetrates through the first connecting piece.

7. The pathology sample acquisition device of claim 6, wherein the driving mechanism further comprises:

the first handle and the second handle are arranged at an angle, the first handle is connected with the second end of the first connecting piece, and the second handle is hinged with the first handle;

when the first handle and the second handle move in opposite directions, the first handle can drive the first grabbing part to move in the direction away from the second grabbing part, and when the first handle and the second handle move in opposite directions, the first handle can drive the first grabbing part to move in the direction close to the second grabbing part.

8. The pathology sample acquisition device of claim 6, further comprising:

the pair of second connecting pieces are arranged at one end of the first grabbing part connected with the first connecting pieces, and the two second connecting pieces are oppositely arranged;

and the two ends of the rotating shaft are respectively connected with the pair of second connecting pieces, and the first connecting pieces are rotationally connected with the rotating shaft.

9. The pathological sample acquiring device according to claim 1, wherein the surface of the grasping forceps is provided with a plurality of cutting edges.

10. The pathological sample acquiring device according to claim 6, further comprising a sleeve which is arranged to fit over the first connector and the outside of the sleeve.

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