TWI829290B - Sample collection device for minimally invasive surgery - Google Patents

Abstract

A specimen collection device for minimally invasive surgery includes a shell unit, an opening and closing unit, and a specimen bag. The opening and closing unit is provided on the housing unit, and includes a push rod provided on the housing unit, a fixed rod, and a deformation rod fixedly connected to the fixed rod. The specimen bag is connected to the opening and closing unit. The push rod can move between a closed position and an expanded position. In the closed position, the fixed rod is substantially parallel to and adjacent to the deformation rod. The bag mouth of the specimen bag is closed. In the expanded position , the deformation rod bends and forms an angle with the fixed rod, and the bag mouth opens. Because the fixed rod and the deformable rod are arranged in parallel in the closed position, the specimen inside the specimen bag can be prevented from leaking and being separated from each other, thereby reducing the risk of contamination.

Description

Sample collection device for minimally invasive surgery

The present invention relates to a surgical instrument, and in particular to a specimen collection device for minimally invasive surgery.

Referring to Figures 1 and 2, a specimen bag disclosed in the US case US2021244392A includes a casing 11, a push rod 12 passed through the casing 11, a fixed rod 13 connected to the casing 11, and a The two ends are respectively connected to the elastic ring 14 of the push rod 12 and the fixed rod 13, and a bag body 15 is sleeved and linked by the elastic ring 14. During use, the push rod 12 is pushed, and the elastic ring 14 is separated from the sleeve 11. The elastic ring 14 opens the bag mouth of the bag body 15 by its own resilience to restore its shape. When the bag mouth needs to be closed, the elastic ring 14 can be opened. When the push rod 12 is pulled back, the elastic ring 14 is compressed by the sleeve 11 and causes the bag mouth to shrink.

However, when the bag mouth is closed, the elastic ring 14's own resilience keeps it in an arc shape, which inevitably creates corners, causing the bag mouth to not be tightly closed. Furthermore, the elastic ring 14 retracts the sleeve. When the tube 11 is inserted into the tube 11, the bag body 15 will not retract into the sleeve 11, so it accumulates at the opening of the sleeve 11. Therefore, multiple wrinkles are generated at the bag mouth, making it more difficult to close the bag tightly. The bag body 15 Suitable for holding specimens removed during surgery. Generally, most of the specimens are not only diseased tissues or partial organs, but also stained with blood and tissue fluid. If the specimen or the fluid attached to it leaks out of the bag 15 and is thus stained on other parts of the patient, there is a risk of pathogen spread or contamination. risk.

Referring to Figures 3 and 4, there is another specimen bag disclosed in the US case US8409216B2, which includes a sleeve 11, a push rod 12 penetrated in the sleeve 11, a bag body 15, and a push rod 12 connected to the push rod 11. The deformation rod 16 of the rod 12, and a fixed rod 17 connected to the sleeve 11 and parallel to the deformation rod 16. The deformation rod 16 and the fixed rod 17 are inserted through the bag body 15. When the push rod 12 pushes the deformation rod 16 outward toward the sleeve 11, the end of the deformation rod 16 is pushed against the fixed rod 17, so that The deformation rod 16 bends and deforms and causes the bag opening of the bag body 15 to open. When closing the bag mouth of the bag body 15, the deformation rod 16 is parallel to the fixed rod 17 and close to each other to close the bag mouth. Therefore, no bending angle is generated, and the bag mouth is difficult to fit properly. Closed question.

However, the end of the deformation rod 16 is directly pushed against the fixed rod 17, and the bag mouth of the bag 15 is opened by buckling of the deformation rod 16. Therefore, if the force is too large, the deformation rod will 16 may produce unexpected deformation, and the fixed rod 17 does not constrain the structure of the end of the deformed rod 16, so it may cause the deformed rod 16 to slip off the fixed rod 17, thereby causing the bag body 15 to collapse. The mouth opens accidentally and the specimen or attached liquid leaks out, resulting in the risk of contamination.

Therefore, an object of the present invention is to provide a specimen collection device for minimally invasive surgery that can reduce the risk of contamination.

Therefore, the specimen collection device for minimally invasive surgery of the present invention includes a housing unit, an opening and closing unit, and a specimen bag.

The housing unit extends in a front-to-back direction. The opening and closing unit is provided on the housing unit, and includes a push rod movably provided on the housing unit, a fixed rod that can be linked by the push rod, and a deformation rod fixed to one end of the fixed rod. The specimen bag is connected to the opening and closing unit and has a bag mouth that can be linked by the opening and closing unit.

The push rod can be driven along the front-to-back direction to move between a closed position and an expanded position. In the closed position, the fixed rod and the deformation rod are substantially parallel and adjacent, and the bag opening of the specimen bag When closed, in the expanded position, the deformation rod bends and forms an angle with the fixed rod, and the bag mouth of the specimen bag opens.

The effect of the present invention is: by the fixed rod and the deformation rod being arranged in parallel in the closed position, the gap of the bag mouth is narrowed, and the leakage of the specimen inside the specimen bag can be prevented, and the fixed rod and the The deformation rods are fixed to each other, which can avoid the risk of being detached from each other due to excessive force, thereby causing the mouth of the specimen bag to accidentally open, thereby reducing the risk of contamination.

2: Shell unit

21:First shell

211: First shell part

212: Support part

213:First extension

214: proximal wall

215: Distal wall

216: wall

217:Connecting hole

22:Second shell

221: Second housing part

222:Second extension

223: proximal wall

224: Distal wall

225: wall

226:Limit slot

227: Nesting slot

228: blocking area

23: Accommodation space

24:Guide slot

241: Narrow mouth

242: Wide mouth

25:Extension tube

251: Rewinding space

3:Opening and closing unit

31:Push lever

311: Ontology Department

312: Grip part

313:Protruding column part

314:embedded card department

315: Embedded slot

32:Separation lever

321: Hook and Card Department

33:Fixed rod

331: Disassembly and assembly end

332: Wrapping end

34:Deformation rod

341: Fixed end

342: Tangled end

35: Rapid deformation parts

4: Sample bag

41: Bag mouth

X: forward and backward direction

Y: left and right direction

Z: up and down direction

Other features and effects of the present invention will be described with reference to the embodiments of the drawings. is clearly presented in, wherein: Figure 1 is a cross-sectional view illustrating an existing specimen bag disclosed in US Patent No. US2021244392A; Figure 2 is a top view of the existing specimen bag; Figure 3 is a perspective view illustrating U.S. Patent No. US8409216B2 discloses another existing specimen bag; Figure 4 is a cross-sectional view illustrating the opening of the bag mouth of the other existing specimen bag; Figure 5 is a three-dimensional assembly diagram illustrating the microstructure of the present invention. A first embodiment of a specimen collection device for invasive surgery; Figure 6 is a perspective exploded view of the first embodiment; Figure 7 is a cross-sectional view taken along line VII-VII in Figure 5, illustrating a push The rod is in a closed position; Figure 8 is a cross-sectional view similar to Figure 7, illustrating a specimen bag extending out of an extension tube; Figure 9 is a cross-sectional view taken along line IX-IX in Figure 5; Figure 10- A cross-sectional view similar to Figure 9 illustrates that the specimen bag extends out of the extension tube; Figure 11 is a cross-sectional view that illustrates the push rod in an expanded position; Figure 12 is an incomplete perspective view illustrating the minimally invasive surgery test of the present invention A second embodiment of the body collection device; and Figure 13 is an incomplete top view of the second embodiment.

Referring to Figures 5, 6, and 7, a first embodiment of the specimen collection device for minimally invasive surgery of the present invention includes a housing unit 2, an opening and closing unit 3, and a specimen bag 4.

The housing unit 2 extends along a front-to-back direction There is an accommodating space 23, a guide groove 24 that connects the outside world and the accommodating space 23 and runs through a left and right direction Y perpendicular to the front and rear direction X, and a guide groove 24 that is detachably connected to the first shell 21 and the first housing 21 The extension tube 25 of the second housing 22 .

Referring to Figures 6, 7, and 8, the first housing 21 has a first housing portion 211 that together with the second housing 22 defines the accommodating space 23, and an inner surface connected to the first housing portion 211. And the support part 212 extends along the front-rear direction X, and a first extension part 213 extends along the front-rear direction X. The first housing part 211 has a proximal wall 214 and a distal wall 215 oppositely arranged along the front-rear direction X, a surrounding wall 216 connected between the proximal wall 214 and the distal wall 215, and a The communication hole 217 penetrates the proximal wall 214 . The first extending portion 213 extends from the proximal wall 214 opposite to the distal wall 215 .

The second housing 22 has a second housing part 221 that defines the accommodating space 23 together with the first housing part 211, and a second extension part 222 extending along the front-rear direction X. The second housing part 221 has a proximal end wall 223 and a distal end wall 224 arranged oppositely along the front-rear direction X, and a proximal end wall 223 and the distal end wall 224 connected between The surrounding wall 225, and a limiting groove 226 formed in the surrounding wall 225 and connecting the accommodating space 23 with the outside world. The second extension part 222 extends from the proximal end wall 223 opposite to the distal end wall 224 , and together with the first extension part 213 defines a sleeve groove 227 for the extension tube 25 to be embedded. Furthermore, the limiting groove 226 has two blocking areas 228 arranged oppositely along the left-right direction Y, and the blocking areas 228 extend along the front-rear direction X.

In more detail, the first housing 21 and the second housing 22 are detachably connected and are in the shape of a circular tube. The proximal wall 214, the distal wall 215 and the surrounding wall 216 of the first housing part 211, The proximal wall 223 , the distal wall 224 and the surrounding wall 225 of the second housing part 221 jointly define the accommodating space 23 . Each of the two ends of the surrounding walls 216, 225 in the front-rear direction 242. The width of the wide mouth portion 242 (see Figure 5) in the up and down direction Z perpendicular to the front and rear direction X and the left and right direction Y is greater than the width of the narrow mouth portion 241, and the positions in the front and rear direction X are corresponding. at the limiting groove 226 and extending toward the limiting groove 226 . The extension tube 25 defines a rewinding space 251 that can accommodate the specimen bag 4. When the extension tube 25 is embedded in the sleeve groove 227, the communication hole 217 communicates with the accommodating space 23 and the rewinding space. Space 251.

The opening and closing unit 3 is provided on the housing unit 2, and includes a push rod 31 movably provided on the housing unit 2, a detachment rod 32 detachably connected to the push rod 31, A fixed rod 33 that separates the rod 32 and can be linked by the push rod 31, and a deformation fixed to one end of the fixed rod 33 and connected to the push rod 31 The rod 34 , the fixed rod 33 and the deformation rod 34 are partially located in the accommodating space 23 and extend through the communication hole 217 and into the rewinding space 251 .

The push rod 31 has a body part 311 located in the accommodation space 23, two gripping parts 312 connecting the opposite sides of the body part 311 in the left and right direction Y and extending out of the guide groove 24, a connecting The body part 311 has a protruding column part 313 extending along the up-down direction Z, and an engaging part 314 connected to the body part 311 and extending along the up-down direction Z and can extend into the limiting groove 226 . The body part 311 has an embedding groove 315 recessed on one side adjacent to the proximal wall 214 along the front-rear direction X. The embedding groove 315 is used for the separation rod 32 to be embedded.

In this embodiment, the number of the gripping parts 312 is two. In other implementations, a single gripping part 312 or more than three gripping parts 312 may be provided according to the needs, but are not limited to this; In addition, in this embodiment, the push rod 31 has one engaging portion 314. In other embodiments, more than two engaging portions 314 can also be provided as needed, for example, spaced apart along the left and right direction Y and can be Embed the blocking areas 228 respectively, or provide two embedding portions 314 on opposite sides of the body portion 311 along the up-down direction Z, and dispose the first housing portion 211 and the second housing portion 221 The surrounding walls 216 and 225 are provided with two limiting grooves 226 corresponding to the engaging portions 314, but this is not a limitation.

Referring to Figures 6, 7, and 10, it is worth mentioning that the separation lever 32 has a hook portion 321 extending along the up-down direction Z. The fixed rod 33 and the deformation rod 34 are in the shape of elongated rods. The length of the fixed rod 33 in the front-rear direction X is shorter than the deformation rod 34 and The diameter is larger than the diameter of the deformation rod 34 and has a detachable end 331 and a winding end 332 oppositely arranged along the front-rear direction X. The deformation rod 34 has a fixed end 341 and a tangled end 342 oppositely arranged along the front-rear direction X. The detachable end 331 is detachably connected to the hook portion 321, the fixed end 341 is detachably fixed to the protruding column portion 313 of the push rod 31, the winding end 332 and the entangled end 342 are entangled with each other and only Can separate in a structurally damaging manner.

The specimen bag 4 is for the fixing rod 33 and the deformation rod 34 to pass through, and has a bag opening 41 that communicates the interior with the outside and is opened and closed in conjunction with the opening and closing unit 3 .

Referring to Figures 8, 9, and 11, the push rod 31 can be driven along the front-to-back direction X to move between a closed position (see Figure 9) and an expanded position (see Figure 11). In the closed position, The fixed rod 33 and the deformation rod 34 are substantially parallel and adjacent. The separation rod 32 is connected between the push rod 31 and the fixed rod 33 and is located on the support part 212. The bag mouth 41 of the specimen bag 4 Close and isolate the interior from the outside world. In the expanded position, the push rod 31 is adjacent to the proximal wall 214, and the separation rod 32 falls from the support portion 212 and separates from the push rod 31 and the fixed rod 33. The detachable end 331 of the rod 33 abuts the proximal wall 214. By shortening the distance between the pushing rod 31 and the entangled end 342 in the front-rear direction X, the detachable end 331 of the fixed rod 33 and the The distance between the winding ends 332 remains unchanged, so that the deformation rod 34 bends and forms an angle with the fixed rod 33 , thereby causing the bag mouth 41 of the specimen bag 4 to open.

Referring to Figures 7, 9 and 11, before use, the extension tube 25 is embedded in the sleeve. A groove 227 is provided, and the push rod 31 is in the closed position. At this time, the specimen bag 4 is wrapped around part of the fixed rod 33 and the deformation rod 34 and is rolled up in the rewinding space 251. During use, the user An opening is cut on the surface of the human body in advance, and a minimally invasive surgical cannula (not shown) is threaded through the opening to establish a channel for the extension tube 25 to extend into, and the extension tube 25 enters the human body through the channel. After entering the interior, push the push rod 31 to move toward the expanded position. During the movement, the push rod 31 moves in conjunction with the separation rod 32 , the fixed rod 33 and the deformation rod 34 . The separation rod 32 and the push rod 31 and the fixed rod 33 is separated, the push rod 31 moves to the expansion position, the specimen bag 4 is separated from the extension tube 25, the bag mouth 41 is opened and the specimen is contained, and the push rod 31 can be pushed upward at this time. The engaging portion 314 extends into the limiting groove 226 and then enters one of the blocking areas 228 along the left-right direction Y. The blocking area 228 can prevent the push rod 31 from being affected by the rebound force of the deformation rod 34 After the specimen bag 4 accommodates the specimen, the push rod 31 is returned to the closed position, and the deformation lever 34 and the fixed lever 33 return to a parallel configuration and close the bag. Port 41, the first housing 21 and the second housing 22 are separated, and then the push rod 31 and the separation rod 32 are removed, and finally the minimally invasive surgical cannula and other matching components are removed, and then the The fixed rod 33 and the deformation rod 34 together with the closed specimen bag 4 are pulled out from the human body.

Referring to Figures 12 and 13, a second embodiment of the specimen collecting device for minimally invasive surgery of the present invention is shown. It is the same as the first embodiment and also includes the housing unit 2, the opening and closing unit 3 and the specimen bag. 4. The difference is: the opening and closing unit 3 also includes a continuous The rapid deformation member 35 is connected between the fixed rod 33 and the deformation rod 34. The two ends of the rapid deformation part 35 are respectively connected to the winding end 332 of the fixed rod 33 and the entangled end 342 of the deformation rod 34.

The rapid deformation component 35 can be driven by the push rod 31 , or other surgical instruments can be used to contact the rapid deformation component 35 . When the rapid deformation component 35 is stressed, it can quickly change between a straight state (see Figure 12) and a curved state (see Figure 13) due to the characteristics of its own material and structure. In the straight state, the deformation rod 34, the fixed rod 33 and the rapid deformation member 35 are substantially parallel to each other. In the bent state, the rapid deformation member 35 bends toward the deformation rod 34 and deforms in conjunction with the deformation rod 34. The fixed rod 33 forms an angle. In this embodiment, the rapidly deformable component 35 is commonly known as a pat ruler. In other implementations, other equivalent components that can be rapidly deformed can also be used, but are not limited thereto.

In this way, the second embodiment can achieve the same effect as the first embodiment, and can further achieve the effect of increasing the opening and closing speed of the bag mouth 41 .

Compared with the existing specimen bag 4, in the present invention, the fixing rod 33 and the deformation lever 34 are arranged in parallel in the closed position, thereby narrowing the gap of the bag mouth 41 and preventing the inside of the specimen bag 4 from being inspected. In addition, the fixed rod 33 and the deformed rod 34 are fixedly connected to each other, which can avoid the risk of being separated from each other due to excessive force, thereby causing the bag mouth 41 of the specimen bag 4 to accidentally open, thereby reducing contamination. Risk effect; in addition, with the engaging portion 314 engaging the limiting groove 226, there is no need to continuously apply force to prevent the push rod from 31 returns to the closed position, thereby preventing the bag mouth 41 from being accidentally closed, thereby further achieving the effects of reducing contamination risks and saving effort.

To sum up, the specimen collection device for minimally invasive surgery of the present invention can indeed achieve the purpose of the present invention.

However, the above are only examples of the present invention, and should not be used to limit the scope of the present invention. All simple equivalent changes and modifications made based on the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of this invention.

2: Shell unit

226:Limit slot

228: blocking area

24:Guide slot

241: Narrow mouth

242: Wide mouth

3:Opening and closing unit

X: forward and backward direction

Y: left and right direction

Z: up and down direction

Claims (9)

A specimen collection device for minimally invasive surgery, including: a housing unit extending in a front-to-back direction, and including a first housing and a second housing detachably connected to each other, the first housing and the second housing together Defining an accommodation space and a guide groove connecting the outside world and the accommodation space; an opening and closing unit is provided on the housing unit and includes a push rod movably provided on the housing unit, a receptacle The push rod is linked to a fixed rod, and a deformation rod fixed to one end of the fixed rod. The push rod has a body part located in the accommodation space and connected to the deformation rod, and at least one connected to the body part and The holding portion extends out of the guide groove; and a specimen bag is connected to the opening and closing unit and has a bag mouth that can be linked by the opening and closing unit; the push rod can be driven in the front and rear direction. Move between a closed position and an expanded position. In the closed position, the fixed rod and the deformation rod are substantially parallel and adjacent, and the bag mouth of the specimen bag is closed. In the expanded position, the deformation rod bends and Clamping an angle with the fixed rod, the bag opening of the specimen bag is opened. The minimally invasive surgery specimen collection device as claimed in claim 1, wherein the opening and closing unit further includes a separation rod detachably connected between the push rod and the fixed rod, and the first housing has a The second housing jointly defines the first housing part of the accommodation space, and a support part connected to the inner surface of the first housing part and extending along the front and rear direction. When the push rod is in the closed position, the separation rod connects between the push rod and the fixed rod and located at the On the support part, when the push rod is in the expanded position, the separation rod is separated from the top of the support part and separated from the push rod and the fixed rod. The specimen collection device for minimally invasive surgery according to claim 2, wherein the first housing part has a proximal wall and a distal wall oppositely arranged along the front-rear direction, and a proximal wall connected to the proximal wall. And the surrounding wall between the distal walls, the fixed rod has a detachable end and a winding end oppositely arranged along the front-rear direction, and the deformation rod has a fixed end and a tangled end oppositely arranged along the front-back direction, The push rod has a protruding column portion for the fixed end to be connected, the separation rod has a hook portion for the detachable end to be detachably connected, the winding end and the entangled end are entangled with each other, and the push rod is in the In the expanded position, the detachable end abuts against the inner surface of the proximal wall. The specimen collection device for minimally invasive surgery as described in claim 3, wherein the push rod also has an embedding groove recessed along the front-to-back direction from an end of the body portion adjacent to the proximal wall, and the embedding groove is used for for the separation rod to be embedded. The specimen collection device for minimally invasive surgery according to claim 1, wherein the push rod also has at least one engaging portion connected to the body portion, and at least one of the first housing and the second housing has a removable There is a limiting groove for the embedding part to be embedded in. When the embedding part is embedded in the limiting groove, the push rod is kept in the expanded position. The specimen collection device for minimally invasive surgery as described in claim 5, wherein the guide groove has a wide mouth and a narrow mouth, and the width of the wide mouth is larger than the narrow mouth and in the front-back direction. The position corresponds to the limiting groove, and the push rod can move toward the limiting groove when it moves to the wide mouth. The specimen collection device for minimally invasive surgery as described in claim 1, wherein the external The shell unit also includes an extension tube detachably connected to the first housing and the second housing. The extension tube defines a rolling space around which the fixed rod, the deformation rod and the specimen bag can extend. , when the extension tube connects the first housing and the second housing, the rolling space communicates with the accommodation space. The specimen collection device for minimally invasive surgery according to claim 7, wherein the first housing has a first extension extending along the front-rear direction, and the second housing has a second extension extending along the front-rear direction. part, the first extension part and the second extension part together define a sleeve groove for the extension tube to be embedded. The specimen collection device for minimally invasive surgery as described in claim 1, wherein the opening and closing unit further includes a rapid deformation component connected between the fixed rod and the deformation rod, the rapid deformation component can be in a flat state when stressed. Rapidly transform between a straight state and a bent state. When the rapidly deforming part is in the straight state, the deformation rod, the fixed rod and the rapid deforming part are substantially parallel to each other. When the rapid deforming part is in the bent state, it faces the The deformation rod bends and deforms in conjunction with the deformation rod and forms an angle with the fixed rod, so that the mouth of the specimen bag can be opened and closed quickly.

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