A pathological specimen minimally invasive sampling special surgical instrument

Abstract

The utility model belongs to the medical instrument technical field, concretely relates to a kind of pathological specimen minimally invasive sampling special surgical instrument, including operating handle and the sampling bag of fixed in operating handle one end, several membrane flaps are distributed with in sampling bag inside along circumference array, several membrane flaps are enclosed into ellipsoidal shell shape, membrane flap is located in the one end of sampling bag opening, and all are fixed with elastic block, another end of membrane flap all pass through sampling bag inside and are fixedly connected in operating handle one end, sampling bag opening is fixed with elastic ring, elastic ring is set in the outside of elastic block, several membrane flaps inside are fixed with annular inflatable bladder, inflatable bladder gas inlet is connected with fixed hose, hose one end is penetrated in operating handle along axial direction and is fixed with gas path connector, membrane flap inner wall all are fixed with elbow, elbow all are set in the outside of inflatable bladder. The utility model can be petal-like open this ellipsoidal shell structure, after capturing pathological sample, it can close pathological sample, and the opening of sampling bag is closed quickly.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a surgical instrument for minimally invasive sampling of pathological specimens. Background Technology

[0002] There are various minimally invasive surgeries that require pathological specimen sampling. Among them, laparoscopic surgeries (such as laparoscopy and thoracoscopy) allow for the sampling of diseased tissue through small incisions without opening body cavities. In addition, some interventional procedures, such as bronchoscopy, gastroscopy, and colonoscopy, can also be used to obtain pathological specimens.

[0003] Minimally invasive sampling is often performed using laparoscopic forceps, and the precise manipulation of the forceps is crucial for the success of the surgery. Through the laparoscopic imaging system, the surgeon can clearly see the relationship between the forceps and surrounding tissues, enabling them to grasp pathological specimens and place them into a sampling bag. The clamping force of the laparoscopic forceps also needs to be moderate, ensuring a firm grip on the tissue while avoiding damage.

[0004] During the process of pathological specimen sampling, the specimen is inserted into the sampling bag using laparoscopic forceps, and then the traction rope and contraction rope are tightened, which is time-consuming and laborious. Using an inflatable balloon to open the sampling bag is also a problem, as the balloon is quite soft after deflation and it is difficult to bind the opening of the sampling bag, making it difficult to quickly close the opening of the sampling bag. Therefore, we propose a special surgical instrument for minimally invasive pathological specimen sampling. Utility Model Content

[0005] The purpose of this invention is to provide a surgical instrument specifically designed for minimally invasive sampling of pathological specimens. This instrument can open its ellipsoidal shell structure in a petal-like shape, capture the pathological sample, and then close and seal it, facilitating rapid closure of the sampling bag opening.

[0006] The specific technical solution adopted in this utility model is as follows:

[0007] A surgical instrument for minimally invasive sampling of pathological specimens includes an operating handle and a sampling bag fixed to one end of the operating handle. Several membrane flaps are arranged in a circumferential array inside the sampling bag, forming an ellipsoidal shell shape. An elastic block is fixed to one end of each membrane flap at the opening of the sampling bag. The other end of each membrane flap passes through the inside of the sampling bag and is fixedly connected to one end of the operating handle. An elastic ring is fixed at the opening of the sampling bag, and the elastic ring is fitted over the elastic blocks. A ring-shaped inflatable bladder is fixed inside each of the membrane flaps. During minimally invasive sampling, the tightening action of the elastic ring pulls the elastic blocks and corresponding membrane flaps together to form a relatively tight ellipsoidal shell. The ellipsoidal shell structure is designed to wrap around the flaps of the sampling bag from the outside, leaving only a few elastic blocks exposed. Simultaneously, medical personnel insert this ellipsoidal shell structure into the lesion through the surgical incision. A measured amount of gas is then inflated into the balloon, causing it to expand and open the flaps, elastic blocks, and elastic rings. The flaps bend, allowing the ellipsoidal shell structure to open in a petal-like shape. The pathological specimen is then inserted using laparoscopic forceps. After capturing the pathological sample, the balloon is deflated. The ellipsoidal shell structure then closes and seals the pathological sample due to the elastic deformation of the flaps and elastic rings, facilitating rapid closure of the sampling bag opening. Removing the ellipsoidal shell structure allows the pathological sample to be excised for testing.

[0008] The air inlet of the inflatable bag is connected to a fixed hose. One end of the hose passes through the operating handle along the axial direction and is fixed with an air passage connector. Before the operation, the air passage connector can be used to connect to the air source. After the air source is turned on, a certain amount of gas is inflated into the inflatable bag along the hose and the air passage connector.

[0009] Each membrane flap has a curved tube fixed to its inner wall. The curved tube is sleeved on the outside of the air bladder, which can circumferentially support the air bladder and expose the air inlet of the air bladder.

[0010] Each membrane flap has an alloy skeleton fixed inside and connected to the curved tube, which can support the corresponding membrane flap. It can bend outward as the air bag expands, and it can also help the corresponding membrane flap to return to its shape after the air bag deflates.

[0011] An alloy disc is fixed inside the sampling bag at the position of the operating handle. The alloy disc is fixedly connected to the alloy frame. The connection between the operating handle and the alloy frame is reinforced to reduce the part that may break at the connection.

[0012] The operating handle is fixed with several anti-slip bushings on the outside, and the surface is frosted to increase friction and prevent slippage.

[0013] The membrane flap has four pieces, and a set of matching cutting blades is provided on the elastic block of the membrane flap in opposite directions. The cutting blade set includes a blade and a blade guide cutting groove with a triangular cross section.

[0014] The technical effects achieved by this utility model are as follows:

[0015] This utility model relates to a specialized surgical instrument for minimally invasive pathological specimen sampling. During minimally invasive sampling, the elastic coil pulls several elastic blocks and corresponding membrane flaps together to form a relatively tight ellipsoidal shell structure. The sampling bag is then pulled to wrap around these membrane flaps from the outside, exposing only a few elastic blocks. Simultaneously, medical personnel insert this ellipsoidal shell structure into the lesion through the surgical incision. A measured amount of gas is then inflated into the air bladder, causing it to expand and open the membrane flaps, elastic blocks, and elastic coil. The membrane flaps bend, opening the ellipsoidal shell structure in a petal-like shape. The pathological specimen is then inserted through laparoscopic forceps. After capturing the pathological sample, the air bladder is deflated. The ellipsoidal shell structure then closes and seals the pathological sample due to the elastic deformation of the membrane flaps and elastic coil, facilitating rapid sealing of the sampling bag opening. The ellipsoidal shell structure is then removed, allowing the pathological sample to be excised for testing. Attached Figure Description

[0016] Figure 1 This is a front view of a practical surgical instrument specifically designed for minimally invasive sampling of pathological specimens;

[0017] Figure 2 This is a cross-sectional view of a practical surgical instrument specifically designed for minimally invasive sampling of pathological specimens;

[0018] Figure 3 This is a front view of the practical flap;

[0019] Figure 4 This is the front view of this practical inflatable bladder;

[0020] Figure 5 This is the main view of the operating handle of this utility;

[0021] Figure 6 This is a schematic diagram of the structure of one embodiment of the present invention;

[0022] Figure 7 This is a front view of a membrane flap according to an embodiment of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Operating handle; 2. Sampling bag; 3. Membrane flap; 4. Elastic block; 5. Elastic ring; 6. Inflatable bladder; 7. Hose; 8. Air connector; 9. Bend; 10. Alloy skeleton; 11. Alloy disc; 12. Anti-slip bushing; 13. Blade; 14. Blade guide cutting groove. Detailed Implementation

[0025] To make the purpose and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0026] like Figure 1-5 As shown, a surgical instrument for minimally invasive sampling of pathological specimens includes an operating handle 1 and a sampling bag 2 fixed to one end of the operating handle 1. Several membrane flaps 3 are arranged in a circumferential array inside the sampling bag 2, forming an ellipsoidal shell shape. An elastic block 4 is fixed to one end of each membrane flap 3 at the opening of the sampling bag 2. The other end of each membrane flap 3 passes through the inside of the sampling bag 2 and is fixedly connected to one end of the operating handle 1. An elastic ring 5 is fixed to the opening of the sampling bag 2, and the elastic ring 5 is fitted over the elastic block 4. A ring-shaped inflatable balloon 6 is fixed inside each of the membrane flaps 3. The minimally invasive sampling procedure is performed by medical personnel using laparoscopic forceps. Beforehand, the operating handle 1, sampling bag 2, membrane flaps 3, elastic block 4, elastic ring 5, and inflatable balloon 6 are sterilized. During minimally invasive sampling, the elastic blocks are pulled by the tightening action of the elastic ring 5. 4 and the corresponding membrane flaps 3 are brought together to form a relatively tight ellipsoidal shell structure. The sampling bag 2 is pulled to wrap these membrane flaps 3 from the outside, leaving only a few elastic blocks 4 exposed. At the same time, the medical staff moves the operating handle 1 to insert the ellipsoidal shell structure into the lesion through the surgical wound. Then, a certain amount of gas is injected into the inflation bag 6, causing the inflation bag 6 to expand and open the membrane flaps 3, elastic blocks 4, and elastic rings 5. The ends of the membrane flaps 3 away from the operating handle 1 are all bent outward, which can open the ellipsoidal shell structure in a petal shape. The pathological specimen is inserted through the laparoscopic forceps. After capturing the pathological sample, the inflation bag 6 is deflated. Then, under the elastic deformation of the membrane flaps 3 and elastic rings 5, the ellipsoidal shell structure can close and seal the pathological sample, which facilitates the rapid sealing of the opening of the sampling bag 2. In this way, the ellipsoidal shell structure can be removed, and the pathological sample can be removed from the body for testing.

[0027] Grooves are provided on the opposite sides of the elastic blocks 4 to allow the elastic rings 5 ​​to settle and prevent them from slipping.

[0028] The operating handle 1 and the flap 3 can both be made of medical-grade hard plastic, the sampling bag 2 can be made of medical-grade plastic film, the elastic ring 5 can be made of medical-grade rubber, and the elastic block 4 and the air bladder 6 can both be made of medical-grade silicone. In this way, the entire surgical instrument has no toxic side effects on the patient and helps to improve the safety of minimally invasive sampling surgery.

[0029] like Figure 2 and Figure 5 As shown, the air inlet of the inflatable bag 6 is connected to a fixed hose 7. One end of the hose 7 passes through the operating handle 1 along the axial direction and is fixed with an air connector 8. Both the air connector 8 and the hose 7 can be made of medical-grade silicone. Before the operation, the air source can be connected to the air source using the air connector 8. After the air source is turned on, a certain amount of gas is inflated into the inflatable bag 6 along the hose 7 and the air connector 8. The air source can also be turned off, and the gas is discharged along the hose 7 and the air connector 8.

[0030] like Figure 2 and Figure 4As shown, each inner wall of the flap 3 is fixed with a curved tube 9. The curved tube 9 can be made of medical-grade hard plastic. The curved tube 9 is sleeved on the outside of the airbag 6, which can support the airbag 6 in a circumferential manner and expose the air inlet of the airbag 6.

[0031] like Figure 2 , Figure 3 and Figure 4 As shown, each flap 3 has an alloy skeleton 10 fixed inside and connected to the curved tube 9. The alloy skeleton 10 can be made of medical grade alloy material, which can support the corresponding flap 3, bend outward with the expansion of the air bag 6, and help the corresponding flap 3 to return to its shape after the air bag 6 deflates.

[0032] like Figure 2 and Figure 4 As shown, an alloy disc 11 is fixed inside the sampling bag 2 with the operating handle 1. The alloy disc 11 can be made of medical grade alloy material. The alloy disc 11 and the alloy skeleton 10 are fixedly connected. The connection between the operating handle 1 and the alloy skeleton 10 is reinforced to reduce the part that is pulled off at the connection.

[0033] like Figure 1 and Figure 5 As shown, several anti-slip bushings 12 are fixed to the outside of the operating handle 1. The anti-slip bushings 12 can be made of medical-grade silicone material with a frosted surface to increase friction and prevent slipping.

[0034] The working principle of this utility model is as follows: During minimally invasive sampling, under the tightening action of the elastic ring 5, several elastic blocks 4 and corresponding membrane flaps 3 are pulled together to form a relatively tight ellipsoidal shell structure, and the sampling bag 2 is pulled to wrap these membrane flaps 3 from the outside, leaving only several elastic blocks 4 exposed.

[0035] At the same time, the medical staff moved the operating handle 1 to insert the ellipsoidal shell structure into the lesion through the surgical wound, and then filled the air bag 6 with a certain amount of gas, so that the air bag 6 expanded and opened several membrane flaps 3, elastic blocks 4 and elastic rings 5. The ends of the membrane flaps 3 away from the operating handle 1 all bend outward, so that the ellipsoidal shell structure can be opened in a petal shape, and the pathological specimen can be inserted through the laparoscopic forceps.

[0036] After capturing the pathological sample, the air bladder 6 is deflated. Then, under the elastic deformation of the flap 3 and the elastic ring 5, the ellipsoidal shell structure can close and seal the pathological sample, which facilitates the rapid sealing of the opening of the sampling bag 2. In this way, the ellipsoidal shell structure can be removed, and the pathological sample can be removed from the body for testing.

[0037] Please see Figure 6 and Figure 7This is a structural diagram of another embodiment of the present invention. In this embodiment, in order to enable the device to perform excision and sampling functions, the membrane flap 3 has four pieces, and a set of matching cutting blades is provided on the elastic block (4) of the membrane flap 3 in opposite directions. The cutting blade set includes a blade 13 and a blade guide cutting groove 14 with a triangular cross section. In this way, after the elastic block 4 at the end of the membrane flap 3 closes, the blade 13 will insert into the blade guide cutting groove 14, thereby excising the sampling block. After capturing the pathological sample, the pathological sample can be taken out for subsequent testing.

[0038] It is worth mentioning that, in this embodiment, the specimen cut by the front blade 13 can be temporarily stored in the sampling bag, and can be taken out together after all the specimens have been cut, avoiding repeated entry and exit of the sampler.

[0039] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model shall be implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A pathological specimen minimally invasive sampling surgical instrument comprising an operating handle (1) and a sampling bag (2) fixed at one end of the operating handle (1), characterized in that: The sampling bag (2) has several membrane flaps (3) arranged in a circular array inside. The membrane flaps (3) are arranged in an ellipsoidal shell shape. An elastic block (4) is fixed at one end of each membrane flap (3) at the opening of the sampling bag (2). The other end of each membrane flap (3) passes through the inside of the sampling bag (2) and is fixedly connected to one end of the operating handle (1). An elastic ring (5) is fixed at the opening of the sampling bag (2). The elastic ring (5) is sleeved on the outside of the elastic block (4). An annular air bladder (6) is fixed inside each of the membrane flaps (3).

2. The pathological specimen minimally invasive sampling surgical instrument according to claim 1, characterized in that: The air inlet of the inflatable bladder (6) is connected to a hose (7), one end of which passes through the operating handle (1) along the axial direction and is fixed with an air connector (8).

3. The pathological specimen minimally invasive sampling surgical instrument according to claim 1, characterized in that: Each of the membrane flaps (3) has a curved tube (9) fixed to its inner wall, and the curved tube (9) is sleeved on the outside of the inflatable bladder (6).

4. The pathological specimen minimally invasive sampling surgical instrument according to claim 3, characterized in that: Each of the membrane flaps (3) has an alloy skeleton (10) fixed inside, which is fixedly connected to the curved tube (9).

5. The pathological specimen minimally invasive sampling surgical instrument according to claim 4, characterized in that: The operating handle (1) is located inside the sampling bag (2) and an alloy disc (11) is fixed thereon. The alloy disc (11) and the alloy frame (10) are both fixedly connected.

6. The pathological specimen minimally invasive sampling surgical instrument according to claim 1, characterized in that: The operating handle (1) is fixed with several anti-slip bushings (12).

7. The pathological specimen minimally invasive sampling surgical instrument according to claim 1, characterized in that: The membrane flap (3) has four pieces. A set of matching cutting blades is provided on the elastic block (4) of the membrane flap (3) in opposite directions. The cutting blade set includes a blade (13) and a blade guide cutting groove (14) with a triangular cross section.

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