CN214549585U

CN214549585U - Bladder tumor extractor with electric cutting function

Info

Publication number: CN214549585U
Application number: CN202022662842.7U
Authority: CN
Inventors: 王龙
Original assignee: Third Xiangya Hospital of Central South University
Current assignee: Hunan Reborn Medical Science And Technology Development Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-11-02
Anticipated expiration: 2030-11-17

Abstract

The utility model relates to a bladder tumour tumor extractor with electric cutting function, which comprises an outer sheath, a traction rod, a net basket and an electric connector. When minimally invasive surgery is performed, the basket can be firstly contracted into the outer sheath under the driving of the traction rod and enters the body along with the outer sheath through the resectoscope sheath. Then, the basket is extended out under the driving of the traction rod, and the cut lesion tissues are sleeved in the accommodating space. The electric connecting piece is connected with the power supply to enable the basket to be electrified and heated, when the temperature of the basket rises to a certain degree, the pathological change tissue in the containing space can be divided into a plurality of blocks, and therefore the pathological change tissue can be taken out of the body conveniently. Moreover, the segmentation mode adopted for the pathological tissue is thermal cutting, and the cut is sintered at high temperature to realize edge sealing. Thus, significant flaking of the cut section of diseased tissue is avoided, and the risk of in vivo spread of diseased tissue is also significantly reduced.

Description

Bladder tumor extractor with electric cutting function

Technical Field

The utility model relates to the technical field of medical equipment, in particular to tumour ware is got to bladder tumour of electrified cutting function.

Background

In the course of disease treatment, it is often necessary to remove and remove certain diseased tissue by minimally invasive surgery. For example, in the treatment of bladder cancer, tumor tissue may be excised in one piece by a laser (En bloc) and the excised tumor tissue removed from the resected sheath. The technical advantage of the monoblock excision of bladder tumor is as follows: the laser operation can reduce complications such as obturator nerve reflex, bladder perforation and the like; can control blood vessels at the basal part of the tumor sufficiently in early stage, reduce bleeding in the operation and keep the visual field clear so as to realize 'accurate' cutting; more importantly, the completeness of the tumor specimen, the mucosa layer, the submucosa layer and the muscular layer is kept, and the guarantee is provided for realizing accurate pathological diagnosis. However, due to the limited aperture of the sheath of the resectoscope and the large diameter of the tumor tissue, some can even exceed 3 cm. This results in the removal of the excised tumor tissue from the body.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a bladder tumor extractor with an electrically powered cutting function, which facilitates the extraction of diseased tissue from the body.

A bladder tumor extractor with a charged cutting function comprises:

the sheath is a hollow structure with two open ends;

the traction rod penetrates through the sheath, can slide in the sheath and can conduct electricity;

the conductive basket is arranged at one end of the traction rod and is electrically connected with the traction rod, and the basket can be retracted into the sheath or extended out of the sheath under the driving of the traction rod and is expanded to form an accommodating space; and

and the positive pole and the negative pole of the basket are respectively and electrically connected with the positive pole and the negative pole of the electric connector through the traction rods.

In one embodiment, the outer sheath includes flexible and rigid sections in communication with one another.

In one embodiment, a holding piece is arranged on the hard section, the holding piece comprises two holding holes, and the two holding holes are respectively located on two opposite sides of the hard section.

In one embodiment, the electrical connector is a wire slot provided on the hard segment.

In one embodiment, the pull ring is connected with one end of the traction rod far away from the net basket and is positioned outside the outer sheath.

In one embodiment, the pull ring is an insulating ring structure.

In one embodiment, the basket comprises two metal wires, the head ends and the tail ends of the two metal wires are respectively connected, and the basket is annular when unfolded.

In one embodiment, the basket comprises three wires, and the head ends and the tail ends of the three wires are respectively connected.

In one embodiment, the basket comprises four wires, and the head ends and the tail ends of the four wires are respectively connected.

In one embodiment, the outer wall of the wire is coated with an insulating layer.

In one embodiment, the basket is removably coupled to the tow bar.

When the bladder tumor extractor with the electric cutting function is used for minimally invasive surgery, the basket can be firstly contracted into the outer sheath under the driving of the traction rod and then enters the body along with the outer sheath through the electric excision sheath. Then, the basket is extended out under the driving of the traction rod, and the cut lesion tissues are sleeved in the accommodating space. The electric connecting piece is connected with the power supply to enable the basket to be electrified and heated, when the temperature of the basket rises to a certain degree, the pathological change tissue in the containing space can be divided into a plurality of blocks, and therefore the pathological change tissue can be taken out of the body conveniently. Moreover, the segmentation mode adopted for the pathological tissue is thermal cutting, and the cut is sintered at high temperature to realize edge sealing. Thus, significant flaking of the cut section of diseased tissue is avoided, and the risk of in vivo spread of diseased tissue is also significantly reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a bladder tumor extractor with an electric cutting function according to a preferred embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a basket in the bladder tumor extractor with an electric cutting function in one embodiment;

FIG. 3 is a schematic structural diagram of a basket in the bladder tumor extractor with an electric cutting function in another embodiment;

fig. 4 is a schematic structural diagram of a basket in a bladder tumor extractor with a charged cutting function in yet another embodiment.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, the bladder tumor extractor 100 with electric cutting function according to the preferred embodiment of the present invention includes an outer sheath 110, a traction rod 120, a basket 130 and an electrical connector 140.

The bladder tumor extractor 100 with the electric cutting function can be used for operation scenes such as bladder tumor excision, prostate tissue excision and the like. When in operation, the electric cutting lens is firstly stretched into the focus of infection, and the pathological tissue is cut off. Then, the excised lesion tissue is taken out from the body by the above-mentioned bladder tumor extractor 100 having the charged cutting function. The outer sheath 110 has a hollow structure with two open ends. The sheath 110 is generally made of a material having a relatively soft texture, such as resin, plastic, or silicone. Therefore, the outer sheath 110 can be elastically deformed to some extent, thereby facilitating the entry of the outer sheath 110 into the body through the resectoscope sheath.

In the present embodiment, the sheath 110 includes a flexible section 111 and a rigid section 112 that are connected to each other. The flexible section 111 and the rigid section 112 may be made of different materials. The flexible section 111 may be formed of rubber or silicone, and the hard section 112 may be formed of hard plastic, and may be connected by gluing after being formed respectively. The flexible section 111 can be bent to any angle, while the rigid section 112 is easy to hold by an operator. The two are matched to make the sheath 110 smoothly extend into the body through the electric excision sheath.

Further, in this embodiment, the hard segment 112 is provided with a holding member 113, the holding member 113 includes two holding holes 1131, and the two holding holes 1131 are respectively located at two opposite sides of the hard segment 112. The grip 113 can further facilitate the operator's grasping of the outer sheath 110. When in use, the index finger and the middle finger of the operator can respectively pass through the two holding holes 1131, so as to stably hold the sheath 110.

The traction rod 120 is inserted through the outer sheath 110, and the traction rod 120 is slidable in the outer sheath 110. The pull rod 120 generally has an outer diameter slightly less than the inner diameter of the outer sheath 110. Furthermore, the surface of the traction rod 120 should be smooth and burr-free so as to be able to slide smoothly along the sheath 110. Also, the drawbar 120 may be conductive. Specifically, the drawbar 120 is generally a steel wire, so that the drawbar can effectively conduct electricity while ensuring the drawing strength.

The basket 130 has a collapsed state and an expanded state. In the collapsed state, the basket 130 may be collapsed within the outer sheath 110; in the unfolded state, the basket 130 can be unfolded to form a receiving space. At this time, the basket 130 may sleeve the cut lesion tissue in the receiving space. The basket 130 is disposed at one end of the drawbar 120, and the basket 130 can be driven by the drawbar 120 to switch states. During operation, the traction rod 120 is operated to drive the basket 130 to retract into the outer sheath 110, so that the basket 130 can enter the body along with the outer sheath 110 through the resectoscope sheath. Then, the traction rod 120 is operated to drive the basket 130 to extend and unfold, and to cover the excised diseased tissue free in the body.

In the embodiment, the bladder tumor extractor 100 with the electric cutting function further includes a pull ring 150, and the pull ring 150 is connected to an end of the pull rod 120 away from the basket 130 and is located outside the outer sheath 110. The pull ring 150 can facilitate the operation of the pull rod 120 by an operator. The operator's fingers can be hooked within the pull ring 150 to facilitate application of force.

In addition, the basket 130 may be electrically conductive and electrically connected to the tow bar 120. The drawbar 120 is electrically connected to an electrical connector 140. The basket 130 has a positive pole and a negative pole, and the positive pole and the negative pole of the basket 120 are electrically connected to the positive pole and the negative pole of the electrical connector 140 through the draw bar 120, respectively. The electrical connector 140 is used for connecting a power source, and may be a plug, a socket, or other common electrical connecting elements. In the embodiment, the electrical connector 140 is a wire slot disposed on the rigid segment 112.

When the electrical connector 140 is energized, current will flow through the basket 130 via the pull rod 120 and complete the circuit. And the basket 130 may generate heat when energized. Specifically, in the present embodiment, the pull ring 150 is an insulating ring structure. Therefore, the damage to the operator when the electric connector 140 is electrified can be avoided.

When the minimally invasive surgery is performed, the traction rod 120 is operated, the net basket 131 is contracted into the outer sheath 110, and then the outer sheath 110 and the net basket 130 are operated to enter the body through the resectoscope sheath. Then, the pulling rod 120 is operated to extend and expand the basket 130 from the outer sheath 110, and the cut diseased tissue free in the body is inserted into the receiving space. Then, the electrical connector 140 is powered on to heat the basket 130 and operate the draw bar 120 to gradually contract. When the temperature of the basket 130 is raised to a certain degree, the lesion tissue in the receiving space will be divided into a plurality of pieces under the pressing and heating effects.

In this manner, the volume of the individual pieces of free diseased tissue will be significantly reduced, thereby facilitating removal from the body. Moreover, the segmentation mode adopted for the pathological tissue is thermal cutting, and the cut is sintered at high temperature to realize edge sealing. Thus, significant flaking of the cut section of diseased tissue is avoided, and the risk of in vivo spread of diseased tissue is also significantly reduced.

In order to wrap the excised lesion tissue, the inner diameter of the receiving space formed by the basket 130 is generally 6 cm or more. There are many possibilities for the configuration of the basket 130 so long as it can encase the diseased tissue when deployed. Such as:

as shown in fig. 2, in one embodiment, the basket 130 includes two wires 131, the head ends and the tail ends of the two wires 131 are connected, and the basket 130 is in a ring shape when unfolded. The wires 131 may be steel wires, and the head ends of the two wires 131 are connected to each other and the tail ends are also connected to each other. When the basket 130 is retracted within the outer sheath 110, the two wires 131 are juxtaposed and abut one another.

When the lesion tissue is nested in the basket 130 shown in fig. 2, the electrical connector 140 is energized to divide the lesion tissue into two pieces of smaller volume.

In another embodiment, as shown in fig. 3, the basket 130 comprises three wires 131, and the head ends and the tail ends of the three wires 131 are connected respectively. Similarly, the three wires 131 are connected to each other at their leading ends and to each other at their trailing ends. When the basket 130 is retracted within the outer sheath 110, the three wires 131 are juxtaposed and abut one another. The basket 130, when unfolded, includes a metal wire 131 arranged in a radial direction of the ring structure, in addition to forming a ring structure.

When the lesion tissue is nested in the basket 130 shown in fig. 3, the electrical connection 140 is energized to divide the lesion tissue into four smaller pieces.

In yet another embodiment, as shown in fig. 4, the basket 130 comprises four wires 131, and the head ends and the tail ends of the four wires 131 are connected respectively. Similarly, the head ends of the four wires 131 are connected to each other, and the tail ends are also connected to each other. When the basket 130 is retracted within the outer sheath 110, the four wires 131 are juxtaposed and abut one another. And the baskets 130, when deployed, will form two intersecting loops.

When the lesion tissue is nested in the basket 130 shown in fig. 4, the electrical connection 140 is energized to divide the lesion tissue into four smaller pieces.

In this embodiment, the basket 130 is detachably coupled to the tow bar 120. Specifically, the basket 130 and the drawbar 120 may be plugged by a plug. In this manner, different baskets 130 may be replaced as needed in different surgical environments.

In this embodiment, the outer wall of the wire 131 is covered with an insulating layer (not shown). The insulating layer can be a silica gel layer or a rubber layer. After the insulating layer is provided, the current passing through the basket 130 is not transmitted into the body, thereby preventing damage to the healthy tissue of the human body.

When the bladder tumor extractor 100 with the electric cutting function is used for minimally invasive surgery, the basket 130 is driven by the traction rod 120 to firstly retract into the outer sheath 110 and enter the body along with the outer sheath 110 through the electric excision sheath. Then, the basket 130 is extended under the driving of the draw bar 120, and the cut lesion tissue is sleeved in the accommodating space. The electric connector 140 is connected with a power supply to enable the basket 130 to be electrified and heated, and when the temperature of the basket 130 is raised to a certain degree, the pathological tissue in the accommodating space can be divided into a plurality of pieces, so that the pathological tissue can be taken out of the body conveniently. Moreover, the segmentation mode adopted for the pathological tissue is thermal cutting, and the cut is sintered at high temperature to realize edge sealing. Thus, significant flaking of the cut section of diseased tissue is avoided, and the risk of in vivo spread of diseased tissue is also significantly reduced.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A bladder tumor extractor with a charged cutting function is characterized by comprising:

the sheath is a hollow structure with two open ends;

the conductive basket is arranged at one end of the traction rod and is electrically connected with the traction rod, and the basket can be retracted into the sheath or extended out of the sheath under the driving of the traction rod and is expanded to form an accommodating space; and the positive pole and the negative pole of the basket are respectively and electrically connected with the positive pole and the negative pole of the electric connector through the traction rods.

2. The charged bladder tumor extractor of claim 1, wherein the outer sheath comprises a flexible section and a rigid section which are connected with each other.

3. The bladder tumor extractor with the electric cutting function as claimed in claim 2, wherein a holding member is disposed on the hard segment, the holding member comprises two holding holes, and the two holding holes are respectively disposed on two opposite sides of the hard segment.

4. The bladder tumor extractor with the electric cutting function as claimed in claim 1, further comprising a pull ring connected to an end of the pull rod away from the basket and located outside the outer sheath.

5. The charged bladder tumor extractor of claim 4, wherein the pull ring is an insulating ring structure.

6. The tumor extractor of the bladder with electric cutting function as claimed in claim 1, wherein the basket comprises two wires, the head ends and the tail ends of the two wires are connected respectively, and the basket is in a ring shape when being unfolded.

7. The tumor extractor of the bladder with electric cutting function as claimed in claim 1, wherein the basket comprises three wires, and the head ends and the tail ends of the three wires are connected respectively.

8. The tumor extractor of the bladder with electric cutting function as claimed in claim 1, wherein the basket comprises four wires, and the head ends and the tail ends of the four wires are connected respectively.

9. The charged tumor collector of bladder with cutting function of any one of claims 6 to 8, wherein the outer wall of the metal wire is coated with an insulating layer.

10. The charged bladder tumor extractor with the electric cutting function as claimed in any one of claims 1 to 8, wherein the basket is detachably connected with the traction bar.