Lumenal organ pathology specimen cutting and sampling assembly

Abstract

The utility model relates to pathological specimen sampling technical field discloses the tubular cavity organ pathological specimen cutting sampling assembly, including ureter, handle, connecting guide wire, guide wire and blade, guide wire is placed in ureter through bladder, the blade sets up at the front end of connecting guide wire, handle is connected at the rear end of connecting guide wire, the front end of connecting guide wire inserts guide wire, along with guide wire transports the blade to the cutting sampling place. Guide wire includes guide wire pipe body, guide head and guide wire gap, the guide wire pipe body is the cylindrical shape of central hollow, the guide head is fixed at the front end of guide wire pipe body, and the guide wire pipe body front part outside sets up the guide wire gap for the blade action. The guide wire pipe body outside is located at the guide wire gap and is provided with a circle of guide wire protruding part, is used for opening a section of ureter into ureter expansion section. The utility model can cut open ureter by the blade rotation, better exposes its different level organization structure, and the subsequent pathological observation and sampling work are convenient.

Description

Technical Field

[0001] This utility model relates to the field of pathological specimen collection technology, and in particular to a component for cutting and collecting pathological specimens of tubular organs. Background Technology

[0002] In the clinical pathological sampling process, the key to obtaining specimens of tubular organs, such as the ureter, fallopian tube, and intestine, is to completely dissect the entire thickness of the organ. For example, a normal ureter consists of a mucosa, submucosa, muscle layer, and serosa. Urothelial carcinoma, a common ureteral tumor, is a malignant tumor originating from the urothelial tissue of the ureteral mucosa. In the pathological diagnosis process, the depth and extent of cancerous tissue invasion are crucial for subsequent disease assessment and the determination of adjuvant treatment plans. Therefore, pathologists need to completely section the specimen in the first step of sampling to fully expose the entire thickness of the ureter.

[0003] There are also some studies related to the cutting of luminal organoids in the prior art, such as the invention patent application with application number CN202210489657.3 entitled "Operating Component for Cutting Ureteral and Its Application", which can cut the ureter or tumors, polyps, etc. in the ureter, but it mainly uses plasma technology and is mainly for the removal of tumors and polyps. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a cutting and sampling component for pathological specimens of tubular organs, which can use the rotation of the blade to cut the ureter, better expose its different levels of tissue structure, and facilitate subsequent pathological observation and sampling.

[0005] This utility model is achieved using the following technical solution: a cutting and sampling assembly for pathological specimens of tubular organs, including a ureter, a handle, a connecting guide wire, a guide wire, and a blade. The guide wire is placed inside the ureter via the bladder. The blade is located at the front end of the connecting guide wire. The handle is connected to the rear end of the connecting guide wire. The front end of the connecting guide wire is inserted into the guide wire, and the blade is transported along the guide wire to the cutting and sampling point.

[0006] Furthermore, the guide wire includes a guide wire tube body, a guide head, and a guide wire notch. The guide wire tube body is a hollow cylinder. The guide head is fixed to the front end of the guide wire tube body. A guide wire notch for blade movement is provided on the outer side of the front part of the guide wire tube body.

[0007] Furthermore, a guidewire protrusion is provided on the outer side of the guidewire tube at the guidewire notch, which is used to expand a section of the ureter into a ureteral dilation section.

[0008] Furthermore, the connecting guide wire is provided with a hinge seat at its front end, the rear end of the blade is hinged in the hinge seat, and a spring is connected between the outer side of the connecting guide wire and the outer side of the blade, so that the blade remains horizontal when not under pressure.

[0009] Furthermore, after being folded under pressure, the blade can move within the guide wire along with the connecting guide wire.

[0010] Furthermore, the handle includes a grip and a handle head, the handle head being connected to both ends of the grip, and a through handle hole being provided in the center of the grip and handle head, with the rear part of the connecting guide wire inserted into the handle hole.

[0011] Furthermore, the diameter of the handle head is smaller than the diameter of the grip, the front part of the handle head transitions to the outer side of the grip in an arc shape, the outer side of the rear part of the handle head remains horizontal, and a knob is installed on the rear part of the handle head through a threaded fit. The knob is used to adjust the tightness of the connecting guide wire in the handle hole.

[0012] Furthermore, the guidewire notch is annular, and the annular circumference of the guidewire notch does not exceed one-third of the circumference of the guidewire tube body.

[0013] Furthermore, the front part of the guide head is semi-circular.

[0014] Furthermore, both the front and rear ends of the guidewire protrusion are arc-shaped.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. The present invention relates to a cutting and sampling assembly for pathological specimens of luminal organs. The front end of the connecting guidewire is inserted into the inner hole of the guidewire, and the blade is delivered to the notch of the guidewire. The physician holds the handle and operates to rotate the connecting guidewire, which drives the blade to rotate and cut open the dilated segment of the ureter. This allows for better exposure of different layers of tissue in the ureter, facilitating subsequent pathological observation and sampling.

[0017] 2. The cutting and sampling assembly for pathological specimens of luminal organs of this utility model has a blade that can be folded to a certain extent, thereby allowing a larger diameter connecting guidewire to be set within the limited space inside the guidewire tube, improving the strength of the connecting guidewire, and making it easier to operate the blade for cutting. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the luminal organ pathological specimen cutting and sampling assembly of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention after the handle is removed in Embodiment 1;

[0020] Figure 3This is a schematic diagram of the structure of the present invention after the handle is removed in Embodiment 2;

[0021] Figure 4 This is a schematic diagram of the structure in Embodiment 2 where the blade moves within the guide wire after being compressed and folded.

[0022] Figure 5 This is a schematic diagram of the handle structure in this utility model.

[0023] In the diagram: Ureter-1; Handle-2; Connecting guidewire-3; Guide wire-4; Blade-5; Ureter dilator-11; Grip-21; Handle head-22; Handle hole-23; Knob-24; Guide wire body-41; Guide head-42; Guide wire protrusion-43; Guide wire notch-44; Hinge seat-51; Spring-52. Detailed Implementation

[0024] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0025] The purpose of this invention is to address the shortcomings of existing technologies by providing a cutting and sampling assembly for pathological specimens of tubular organs.

[0026] Example 1

[0027] The lumbar organ pathological specimen cutting and sampling assembly provided in this embodiment is referenced. Figure 1 As shown, it includes a ureter 1, a handle 2, a connecting guide wire 3, a guide wire 4, and a blade 5. The guide wire 4 is placed inside the ureter 1 through the bladder. The blade 5 is located at the front end of the connecting guide wire 3. The handle 2 is connected to the rear end of the connecting guide wire 3. The front end of the connecting guide wire 3 is inserted into the guide wire 4. The blade 5 is transported along the guide wire 4 to the cutting and sampling point. The connecting guide wire 3 is solid.

[0028] Reference Figure 2As shown, the guidewire 4 includes a guidewire body 41, a guide head 42, and a guidewire notch 44. The guidewire body 41 is a hollow cylinder. The guide head 42 is fixed to the front end of the guidewire body 41. In this embodiment, the front part of the guide head 42 is semi-circular, allowing the guidewire body 41 to move more smoothly within the ureter 1. A guidewire notch 44 for the blade 5 to operate on the outer side of the front part of the guidewire body 41 is provided. The guidewire notch 44 is annular, and its circumference does not exceed one-third of the circumference of the guidewire body 41, ensuring the guidewire body 41 maintains high strength. A ring of guidewire protrusions 43 is provided on the outer side of the guidewire body 41 at the guidewire notch 44. This protrusion is used to expand a section of the ureter 1 into a ureteral dilatation segment 11, providing support, fixation, and expansion for the guidewire body 41. This facilitates the blade 5 in cutting the ureteral dilatation segment 11 and better exposes different layers of ureteral tissue. The front and rear ends of the guidewire protrusion 43 are both arc-shaped to prevent the guidewire protrusion 43 from scratching or damaging the ureter.

[0029] Reference Figure 5 As shown, the handle 2 includes a grip 21 and a head 22. The head 22 is connected to both ends of the grip 21. A through-hole 23 is provided in the center of the grip 21 and the head 22, and the rear part of the connecting guide wire 3 is inserted into the head hole 23. The diameter of the head 22 is smaller than the diameter of the grip 21. The front part of the head 22 transitions from the outer side of the grip 21 in an arc shape, and the outer side of the rear part of the head 22 remains horizontal. A knob 24 is installed at the rear of the head 22 through a threaded engagement. The knob 24 is used to adjust the tightness of the connecting guide wire 3 in the head hole 23.

[0030] In this utility model, the cutting and sampling assembly for pathological specimens of tubular organs is used by first placing the guide wire 4 through the bladder into the ureter 1, so that it reaches the predetermined position; then, the front end of the connecting guide wire 3 is inserted into the inner hole of the guide wire 4, and the blade 5 is transported along the guide wire 4 to the guide wire notch 44; in order to improve the accuracy of the blade 5 transport and make it reach the guide wire notch 44 better, a scale line is provided on the outer shell of the guide wire tube 41 to indicate the distance of its rear end from the guide wire notch 44; at the same time, a scale line is provided on the outer side of the connecting guide wire 3 so that the length can be corresponding when it is transported in the guide wire tube 41. Next, the rear part of the connecting guidewire 3 is fastened in the handle hole 23 by the knob 24. The doctor holds the handle 21 and operates to rotate the connecting guidewire 3, which drives the blade 5 to rotate. Since the ureter is stretched into the ureteral dilatation segment 11 by the guidewire protrusion 43, it is easier for the blade 5 to cut the ureteral dilatation segment 11 and better expose the different layers of ureteral tissue, fully expose the full-thickness structure of the ureter, facilitate subsequent pathological observation and sampling, and do not damage the ureter.

[0031] Example 2

[0032] The lumbar organ pathological specimen cutting and sampling assembly provided in this embodiment is referenced. Figures 3-4 As shown, a hinge seat 51 is provided at the front end of the connecting guide wire 3, and the rear end of the blade 5 is hinged in the hinge seat 51. A spring 52 is connected between the outer side of the connecting guide wire 3 and the outer side of the blade 5, so that the blade 5 remains horizontal when not under pressure. After being compressed and folded, the blade 5 can move within the guide wire 4 along with the connecting guide wire 3, that is, the blade 5 can fold to a certain extent. Through this setting, the blade 5 can fold backward as it follows the connecting guide wire 3 into the guide wire tube 41, thereby occupying less radial space. This allows for a larger diameter connecting guide wire 3 to be placed within the limited space of the guide wire tube 41, improving the strength of the connecting guide wire 3 and better maneuvering the blade 5 for cutting. During the pushing process, when the blade 5 reaches the guide wire notch 44, it will pop out under the action of the spring 52, keeping it horizontal for cutting. After cutting, as the connecting guide wire 3 pulls the blade 5 out, the blade 5 is blocked by the guide wire notch 44 and pulls the spring 52 backward, tilting it so that it can be pulled out through the guide wire tube 41.

[0033] It should be noted that the luminal organ pathological specimen cutting and sampling assembly of this utility model can be used not only for the cutting and sampling of pathological specimens of the ureter, but also, with simple changes in size or structure, can be applied to other luminal organs such as the fallopian tube and intestine.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A specimen cutting and sampling assembly for pathological specimens of tubular sexual organs, including a ureter (1), characterized in that: It also includes a handle (2), a connecting guide wire (3), a guide wire (4), and a blade (5). The guide wire (4) is placed in the ureter (1) through the bladder. The blade (5) is located at the front end of the connecting guide wire (3). The handle (2) is connected to the rear end of the connecting guide wire (3). The front end of the connecting guide wire (3) is inserted into the guide wire (4), and the blade (5) is transported to the cutting and sampling point along the guide wire (4).

2. The endoscopic specimen cutting and sampling assembly for luminal organs according to claim 1, characterized in that: The guide wire (4) includes a guide wire tube (41), a guide head (42), and a guide wire notch (44). The guide wire tube (41) is a hollow cylinder. The guide head (42) is fixed at the front end of the guide wire tube (41). The guide wire notch (44) for the blade (5) to move is provided on the outer side of the front part of the guide wire tube (41).

3. The endoscopic specimen cutting and sampling assembly for luminal organs according to claim 2, characterized in that: The guidewire body (41) has a guidewire protrusion (43) on the outside of the guidewire notch (44) to expand a section of the ureter (1) into a ureteral dilation section (11).

4. The endoscopic specimen cutting and sampling assembly for luminal organs according to claim 2 or 3, characterized in that: The connecting guide wire (3) is provided with a hinge seat (51) at the front end, and the rear end of the blade (5) is hinged in the hinge seat (51). A spring (52) is connected between the outer side of the connecting guide wire (3) and the outer side of the blade (5), and the blade (5) remains horizontal when it is not compressed.

5. The endoscopic specimen cutting and sampling assembly for luminal organs according to claim 4, characterized in that: After being folded under pressure, the blade (5) can move within the guide wire (4) along with the connecting guide wire (3).

6. The endoscopic specimen cutting and sampling assembly for luminal organs according to claim 5, characterized in that: The handle (2) includes a grip (21) and a handle head (22). The handle head (22) is connected to both ends of the grip (21). A through handle hole (23) is provided in the center of the grip (21) and the handle head (22). The rear part of the connecting guide wire (3) is inserted into the handle hole (23).

7. The endoscopic specimen cutting and sampling assembly for luminal organs according to claim 6, characterized in that: The diameter of the handle head (22) is smaller than that of the handle (21). The front part of the handle head (22) transitions from the outer side of the handle (21) in an arc shape. The outer side of the rear part of the handle head (22) remains horizontal. A knob (24) is installed on the rear part of the handle head (22) through a threaded fit. The knob (24) is used to adjust the tightness of the connecting guide wire (3) in the handle hole (23).

8. The endoscopic specimen cutting and sampling assembly for luminal organs according to claim 5, characterized in that: The guide wire notch (44) is annular, and the annular circumference of the guide wire notch (44) does not exceed one-third of the circumference of the guide wire tube body (41).

9. The endoscopic specimen cutting and sampling assembly for luminal organs according to claim 5, characterized in that: The front part of the guide head (42) is semi-circular.

10. The endoscopic specimen cutting and sampling assembly for luminal organs according to claim 3, characterized in that: The front and rear ends of the guidewire protrusion (43) are both arc-shaped.

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