CN209863906U

CN209863906U - Tension type tissue extraction instrument

Info

Publication number: CN209863906U
Application number: CN201920400385.9U
Authority: CN
Inventors: 赵志恒
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-27
Filing date: 2019-03-27
Publication date: 2019-12-31
Anticipated expiration: 2029-03-27

Abstract

The utility model discloses a tension type tissue extraction instrument, which comprises a first handle, wherein a tubular operating tube is arranged in the first handle in a penetrating way; an oval cut is formed in one end, far away from the first handle, of the operating tube; a first concave blade is integrally formed at the edge of the notch; a circular tension adjusting hole is arranged on the operating pipe in a penetrating way; a cutting groove is arranged on the operation tube; the cutting groove is communicated with the notch and the tension adjusting hole; the two sides of the cutting groove are respectively a cutting side and a taking-out side; a second cutting edge is integrally formed on the cutting side and extends along the length direction of the cutting groove; a second cutter tooth is integrally formed at one end of the taking-out side close to the notch; the taking-out side is integrally provided with first cutter teeth, and the first cutter teeth are distributed along the axial direction of the cutting groove; the first cutter teeth and the second cutter teeth are triangular pyramidal.

Description

Tension type tissue extraction instrument

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to tension type tissue takes out apparatus.

Background

The increasing incidence of tumors now makes the treatment of tumors more urgent. Tumor biopsy is the most accurate method for determining the nature of a tumor.

Currently, the tumor biopsy is mainly a needle biopsy, which is to take the detected tissue from the detected site by a tissue taking instrument. After penetrating the tissue to be examined with the biopsy instrument, the operator can then carry the tissue to be examined out by pulling out the biopsy instrument after the tissue to be examined has entered the biopsy extractor.

However, after the biopsy extractor is inserted into the tissue to be examined, the cells adhere to each other between the tissues of the human body; when the tissue is taken out, the tissue accommodated in the extractor and the tissue not accommodated therein are connected to each other, and the tissue is pulled out, which results in that the collected tissue cannot be smoothly taken out.

Therefore, it is desirable to provide a tissue extraction instrument that can smoothly extract the tissue to be examined after the tissue is collected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tension type tissue takes out apparatus for solve current biopsy instrument and can not gather the problem that is detected the tissue smoothly.

In order to achieve the above purpose, the technical scheme of the utility model is that:

a tension type tissue extraction instrument comprises a first handle, wherein a tubular operating tube is arranged in the first handle in a penetrating way; an oval cut is formed in one end, far away from the first handle, of the operating pipe; the edge of the notch is integrally formed with a first concave blade; a circular tension adjusting hole is arranged on the operating pipe in a penetrating way; a cutting groove is formed in the operating pipe; the cutting groove is communicated with the notch and the tension adjusting hole; the two sides of the cutting groove are respectively a cutting side and a taking-out side; a second cutting edge is integrally formed on the cutting side and extends along the length direction of the cutting groove; a second cutter tooth is integrally formed at one end of the taking-out side close to the notch; the taking-out side is integrally provided with first cutter teeth, and the first cutter teeth are distributed along the axial direction of the cutting groove; the first cutter teeth and the second cutter teeth are triangular pyramidal.

Preferably, the second blade tooth comprises a first cutting blade edge, a first blade back and a first bottom surface; the first cutting blade is on a side of the body of the second cutter tooth and extends to the first back; the two first cutting knife edges are intersected on one ridge line of one second knife tooth; the first bottom surface is connected with the operating pipe; the first cutting edge is an obtuse triangle.

Preferably, the first blade tooth comprises a triangular second cutting blade, a second back and a second bottom surface; the second cutting edge extends to the second blade back; the two second cutting edges are intersected at the ridge line of the first cutter tooth; the second cutting edge is an obtuse triangle.

Preferably, the first cutter tooth and the second cutter tooth are inclined towards the direction of the tension adjusting hole.

Preferably, an included angle formed by the first cutter tooth and a tangent line of the outer wall of the operating pipe is greater than equal to 0 degree and less than or equal to 30 degrees; the second cutter tooth and the first cutter tooth form an included angle which is larger than equal 0 degree and smaller than or equal to 30 degrees.

Preferably, the second cutting edge comprises a tool body, and the longitudinal section of the tool body is trapezoidal; and a third cutting blade is integrally formed at the edge of the cutter body.

Preferably, the second cutter tooth and the first cutter edge are in contact and tangent.

Preferably, the device further comprises a guide tube; the operating pipe is slidably arranged in the guide pipe in a penetrating way.

Preferably, the cross section of the operation tube is circular ring-shaped; the tool point of the first tool tooth and the tool point of the second tool tooth are positioned on the same diameter of the cross section of the operating pipe.

The utility model has the advantages of as follows:

(1) when the tension type tissue taking-out instrument is used, the tension type tissue taking-out instrument is slidably arranged in the guide tube in a penetrating mode, the first handle is pressed, the operation tube penetrates downwards into the detected tissue, the first knife edge cuts and cuts the skin of the detected tissue, the detected tissue enters the operation tube through the cut, and the primary acquisition of the detected tissue is achieved; the first blade can cut surface tissues, so that the rapid incision is facilitated to obtain detected tissues;

(2) after a large amount of detected tissues enter the operating tube, if the amount of the entered detected tissues is large, pressure is caused on the side wall of the operating tube; the tension adjusting hole can be bent and extended towards two sides, and the side walls of the two sides of the cutting groove are inclined to play a role in buffering, so that the operation pipe is prevented from being deformed by large tension due to too large collection amount;

(3) after the detected assembly enters the operating tube, the first handle is rotated to drive the second cutting edge to rotate, the second cutting edge is used for cutting tissues entering the operating tube and tissues not entering the operating tube, and the tissues inside and outside the operating tube are prevented from being connected and bonded with each other to influence the taking out of later-stage tissues;

(4) the collected combination can be hung by the first knife tooth when the tissue is taken out; the second cutter tooth is arranged at the tail part of the cutting groove, and when tissues are taken out, the second cutter tooth can cut and support the collected tissues, so that the tissues which are integrated can be taken out smoothly.

Drawings

FIG. 1 is a schematic view of a tension-type tissue extraction instrument of the present invention.

Fig. 2 is a schematic view of a guide tube in the utility model.

Fig. 3 is an enlarged view of a first cutter tooth, a second cutter tooth and a first cutter edge in the utility model.

Fig. 4 is a schematic view of a second tooth of the present invention.

Figure 5 is a side view of a second tooth of the present invention.

Fig. 6 is a transverse sectional view of the handling tube in the utility model.

Fig. 7 is a schematic view of a first tooth of the present invention.

Figure 8 is a side view of a first tooth of the present invention.

Fig. 9 is a front view of a second blade of the present invention.

In the figure: 1-a first handle; 2-operating the tube; 3-a first cutter tooth; 31-a second cutting edge; 32-a second blade back; 33-a second bottom surface; 4-a second cutter tooth; 41-a first cutting edge; 42-first blade back; 43-a first bottom surface; 5-a first blade; 6-incision; 7-a second blade; 71-a tool body; 72-a third cutting edge; 8-cutting the groove; 9-tension adjusting holes; 10-a guide tube.

Detailed Description

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Examples

The tension type tissue extracting instrument comprises a first handle 1, wherein a tubular operating tube 2 is arranged in the first handle 1 in a penetrating way; an elliptical cut 6 is arranged at one end of the operating tube 2 far away from the first handle 1; a first concave blade 5 is integrally formed at the edge of the notch 6; the first handle 1 and the operating tube 2 are connected and fixed in a clamping mode, a threaded screwing mode or an adhesive bonding mode.

A circular tension adjusting hole 9 is arranged on the operating pipe 2 in a penetrating way; a cutting groove 8 is formed in the operating pipe 2; the cutting groove 8 is communicated with the cut 6 and the tension adjusting hole 9; the two sides of the cutting groove 8 are respectively a cutting side and a taking-out side; a second blade 7 is integrally formed on the cutting side, and the second blade 7 extends along the length direction of the cutting groove 8;

a second cutter tooth 4 is integrally formed at one end of the taking-out side close to the notch 6; a plurality of first cutter teeth 3 are integrally formed on the taking-out side, and the first cutter teeth 3 are distributed along the axial direction of the cutting groove 8; the first cutter teeth 3 and the second cutter teeth 4 are triangular pyramidal.

The second tooth 4 comprises a first cutting edge 41, a first blade back 42 and a first bottom surface 43; the first cutting edge 41 is on the side of the body of the second tooth 4 and extends to the first blade back 42; the two first cutting edges 41 intersect on one ridge line of one second cutter tooth 4; the first bottom surface 43 is connected with the operation tube 2; the first cutting edge 41 is an obtuse triangle.

The first tooth 3 comprises a triangular second cutting edge 31, a second back 32 and a second bottom surface 33; the second cutting edge 31 extends to the second blade back 32; the two second cutting edges 31 intersect at the ridge of the first tooth 3; the second cutting edge 31 is an obtuse triangle.

The first cutter tooth 3 and the second cutter tooth 4 are inclined towards the direction of the tension adjusting hole 9.

An included angle formed by the first knife tooth 3 and a tangent line of the outer wall of the operating pipe 2 is more than equal to 0 degree and less than or equal to 30 degrees; the included angle between the second cutter tooth 4 and the first cutter tooth 3 is more than equal 0 degree and less than or equal to 30 degrees.

The second cutting edge 7 comprises a tool body 71, and the longitudinal section of the tool body 71 is trapezoidal; a third cutting blade 72 is integrally formed at the edge of the tool body 71.

The second tooth 4 and the first blade edge 5 are in contact and tangent.

Also comprises a guide tube 10; the operation tube 2 is slidably inserted into the guide tube 10.

The guide tube 10 includes a tubular tube body, and a handle is screwed to an end of the tube body by a thread.

The cross section of the operation tube 2 is circular ring-shaped; the tool tip of the first tool tooth 3 and the tool tip of the second tool tooth 4 are positioned on the same diameter of the cross section of the operating pipe 2. The first cutter tooth 3 and the second cutter tooth 4 can have a plurality of inclined angles.

When the tension type tissue taking-out instrument is used, the tension type tissue taking-out instrument is slidably arranged in the guide tube in a penetrating mode, the first handle is pressed, the operation tube penetrates downwards into the detected tissue, the first knife edge cuts and cuts the skin of the detected tissue, the detected tissue enters the operation tube through the cut, and the primary acquisition of the detected tissue is achieved; the first blade can cut surface tissues, so that the rapid incision is facilitated to obtain detected tissues;

after a large amount of detected tissues enter the operating tube, if the amount of the entered detected tissues is large, pressure is caused on the side wall of the operating tube; the tension adjusting hole can be bent and extended towards two sides, and the side walls of the two sides of the cutting groove are inclined to play a role in buffering, so that the operation pipe is prevented from being deformed by large tension due to too large collection amount;

after the detected assembly enters the operating tube, the first handle is rotated to drive the second cutting edge to rotate, the second cutting edge is used for cutting tissues entering the operating tube and tissues not entering the operating tube, and the tissues inside and outside the operating tube are prevented from being connected and bonded with each other to influence the taking out of later-stage tissues;

the collected combination can be hung by the first knife tooth when the tissue is taken out; the second cutter tooth is arranged at the tail part of the cutting groove, and when tissues are taken out, the second cutter tooth can cut and support the collected tissues, so that the tissues which are integrated can be taken out smoothly.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A tension type tissue extraction instrument is characterized by comprising a first handle (1), wherein a tubular operating tube (2) is arranged in the first handle (1) in a penetrating way; an oval cut (6) is arranged at one end of the operating pipe (2) far away from the first handle (1); a first concave blade (5) is integrally formed at the edge of the notch (6);

a circular tension adjusting hole (9) is arranged on the operating pipe (2) in a penetrating way; a cutting groove (8) is formed in the operating pipe (2); the cutting groove (8) is communicated with the cut (6) and the tension adjusting hole (9); the two sides of the cutting groove (8) are respectively a cutting side and a taking-out side; a second cutting edge (7) is integrally formed on the cutting side, and the second cutting edge (7) extends along the length direction of the cutting groove (8);

a second cutter tooth (4) is integrally formed at one end of the taking-out side close to the notch (6); the taking-out side is integrally provided with first cutter teeth (3), and a plurality of first cutter teeth (3) are distributed along the axial direction of the cutting groove (8); the first cutter teeth (3) and the second cutter teeth (4) are triangular pyramid-shaped.

2. The tension type tissue extraction instrument as recited in claim 1, wherein the second blade tooth (4) includes a first cutting edge (41), a first back (42), and a first bottom surface (43); the first cutting edge (41) is on a side of the body of the second tooth (4) and extends to the first back (42); the two first cutting edges (41) intersect on a ridge line of a second cutter tooth (4); the first bottom surface (43) is connected with the operating pipe (2); the first cutting edge (41) is an obtuse triangle.

3. The tension-type tissue extraction instrument as in claim 1, wherein the first tooth (3) comprises a triangular second cutting edge (31), a second back (32) and a second bottom surface (33); the second cutting edge (31) extends to the second blade back (32); the two second cutting edges (31) are intersected at the ridge line of the first cutter tooth (3); the second cutting edge (31) is an obtuse triangle.

4. The tension-type tissue extraction instrument according to claim 1, wherein the first blade tooth (3) and the second blade tooth (4) are each inclined in the direction of the tension adjustment aperture (9).

5. The tension type tissue extraction instrument according to claim 1, wherein the included angle formed by the first cutter tooth (3) and a tangent line of the outer wall of the operating tube (2) is greater than equal to 0 degrees and less than or equal to 30 degrees; the second cutter tooth (4) and the first cutter tooth (3) form an included angle which is larger than equal 0 degree and smaller than or equal to 30 degrees.

6. The tension-type tissue extraction instrument as recited in claim 1, wherein the second blade (7) includes a blade body (71), the blade body (71) being trapezoidal in longitudinal cross-section; and a third cutting blade (72) is integrally formed at the edge of the cutter body (71).

7. The tension type tissue extraction instrument of claim 1, wherein the second blade tooth (4) and the first blade edge (5) are in contact and tangential.

8. The tension type tissue extraction instrument as in claim 1, further comprising a guide tube (10); the operating pipe (2) is slidably arranged in the guide pipe (10) in a penetrating way.

9. The tension-type tissue extraction instrument according to claim 1, wherein the operating tube (2) is circular in cross-section; the tool tip of the first tool tooth (3) and the tool tip of the second tool tooth (4) are positioned on the same diameter of the cross section of the operating pipe (2).