CN112617973B

CN112617973B - Tumor resectoscope

Info

Publication number: CN112617973B
Application number: CN202011376949.3A
Authority: CN
Inventors: 唐颖; 李咏生; 李艳; 吴志娟; 熊双龙
Original assignee: Chongqing University Cancer Hospital
Current assignee: Chongqing University Cancer Hospital
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2022-03-15
Anticipated expiration: 2040-11-30
Also published as: CN112617973A

Abstract

The invention discloses a tumor resectoscope which comprises a scissor main body, a first fixing mechanism and a second fixing mechanism, wherein the scissor main body comprises a first scissor body and a second scissor body which are hinged, the first fixing mechanism comprises a first fixing block and a first sliding sleeve, a first fixing groove is formed in the side surface of the first fixing block, the first sliding sleeve is arranged in the first fixing groove through a reset spring, and the first sliding sleeve is sleeved on the outer side of a cut part of the first scissor body in a sliding manner; the second fixing mechanism comprises a second fixing block provided with a second fixing groove, and the cutting part of the second cutter body is arranged in the second fixing groove in a sliding mode through a second sliding sleeve. The tumor resectoscope is oppositely arranged through the first fixing block and the second fixing block, tumor tissues are clamped and fixed in one step before the first cutter body and the second cutter body are contacted, so that a doctor can independently use a single instrument to complete operation, the operation space occupied by a plurality of instruments is saved, and the requirement of minimally invasive surgery is met.

Description

Tumor resectoscope

Technical Field

The invention relates to the technical field of medical appliances, in particular to a tumor resectoscope.

Background

The tumor tissue has different degrees of difference from the normal tissue from which it originates, both in cell morphology and tissue structure, and the difference is called as abnormal shape, which is the manifestation of abnormal differentiation of tumor in morphology. Small heterogeneity, indicating high degree of differentiation, large heterogeneity, indicating low degree of differentiation. The difference in size of this abnormal shape is the main histological basis for diagnosing tumors and determining their benign and malignant properties. The abnormal shape of benign tumor cells is not obvious, and is generally similar to the original tissue, and malignant tumors often have obvious abnormal shape.

At present, the treatment principle of tumor is comprehensive treatment mainly based on operation, and symptomatic treatment is assisted according to the disease condition, wherein the operation refers to tumor resection, and in the process of tumor tissue resection, a doctor usually clamps and fixes the tumor tissue by using a forceps, and then resects the tumor tissue by using a scalpel. However, during resection, a plurality of instruments are required to be matched and extend into the incision, so that the operation is complicated, the operation visual field is influenced, and the requirement of minimally invasive surgery cannot be met.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a tumor resectoscope which solves the problem that the requirements of minimally invasive surgery cannot be met due to the fact that the existing tumor tissue resection needs to be matched with an instrument.

In order to realize the technical effects, the technical scheme adopted by the invention is as follows:

a tumor resector, comprising:

the scissors comprise a scissors main body, wherein the scissors main body comprises a first cutter body and a second cutter body, the first cutter body and the second cutter body are hinged, and both the first cutter body and the second cutter body comprise a cutting part and a holding part;

the first fixing mechanism is detachably arranged on the cutting part of the first cutter body, the first fixing mechanism comprises a first fixing block, a first sliding sleeve and a return spring, a first fixing groove is arranged on the side surface of the first fixing block, and one side wall of the first fixed groove extends out of the side edge of the first fixed block, the first sliding sleeve is arranged in the first fixed groove, one end of the return spring is connected with the side wall of the first fixed groove, the other end of the return spring is connected with one side edge of the first sliding sleeve, the side edge of the first sliding sleeve, which is far away from the return spring, is provided with an opening along the length direction, the first sliding sleeve is sleeved on the outer side of the cutting part of the first cutter body in a sliding manner, the cutting part of the first cutter body extends to the outer side from the opening of the first sliding sleeve, the back of the cut part of the first cutter body is sleeved inside the first sliding sleeve, and the width of the cut part of the first cutter body is smaller than that of the first fixing groove; and

the second fixing mechanism is detachably arranged on the cutting part of the second cutter body and comprises a second fixing block and a second sliding sleeve with an opening, a second fixing groove is formed in the side face of the second fixing block, and the cutting part of the second cutter body is arranged in the second fixing groove in a sliding mode through the second sliding sleeve.

The tumor resectoscope is characterized in that the first fixing block and the second fixing block are oppositely arranged, and the tumor tissue is clamped and fixed in one step before the first cutter body and the second cutter body are contacted, so that a doctor can independently use a single instrument to complete operation, the operation space occupied by a plurality of instruments is saved, and the requirement of minimally invasive surgery is met.

Further, the side edge of the cutting part of the second cutter body is flush with the side edge surface of the second fixing block. The first cutter body and the second cutter body are prevented from contacting with each other in one step before the first fixing block and the second fixing block clamp and fix tumor tissues due to the fact that the cutting edge of the cutting part of the second cutter body protrudes out of the second fixing block.

Further, the cutting portion of the first cutter body is inclined and disposed, and the cutting portion of the first cutter body is inclined toward the outer side of the first fixing groove, and the cutting portion of the second cutter body is inclined and disposed, and the cutting portion of the second cutter body is inclined toward the outer side of the second fixing groove. Make medical personnel carry out effectual excision to tumor tissue, avoid the excision portion can not all excise the fixed tumor tissue of first fixed block and second fixed block centre gripping.

Further, be equipped with negative pressure mechanism on the second fixed establishment, negative pressure mechanism includes the negative pressure pipe, and a plurality of first negative pressure holes have been seted up to the lateral wall of second fixed slot, and the second negative pressure hole has been seted up to the bottom surface of second fixed block, and the second negative pressure hole all communicates with a plurality of first negative pressure holes, and the one end of negative pressure pipe and the one end intercommunication that first negative pressure hole was kept away from in second negative pressure hole, and the other end is used for being connected with the negative pressure pump. After medical personnel excise the tumor tissue, the bad blood in the tissue flows out, the negative pressure pump provides negative pressure power, flows into the second negative pressure hole through the first negative pressure hole, and is discharged from the negative pressure pipe.

Furthermore, a filter screen is arranged on the first negative pressure hole. The filter screen can prevent that great impurity from getting into first negative pressure hole and leading to the jam of second negative pressure hole.

Furthermore, a collecting bag is arranged at the front end of the second fixing block, and an opening of the collecting bag is communicated with the second fixing groove. The collection bag is capable of collecting tumor tissue that falls after resection.

Further, the second negative pressure hole runs through the front end of the second fixed block, the second negative pressure hole is communicated with the collecting bag, and the diameter of the end, close to the collecting bag, of the second negative pressure hole is smaller than the diameter of the end, far away from the collecting bag, of the second negative pressure hole. The second negative pressure hole is communicated with the collecting bag, so that the collecting bag has suction force, and the fallen tumor tissue can be sucked more easily.

The invention has the beneficial effects that: the tumor resectoscope clamps and fixes tumor tissues in one step before a first cutter body and a second cutter body are contacted through the relative arrangement of the first fixing block and the second fixing block, so that a doctor can independently use a single instrument to finish operation, the operation space occupied by a plurality of instruments is saved, and the requirement of minimally invasive operation is met; the first fixing mechanism and the second fixing mechanism can be detachably arranged and can be separated from the scissors main body, so that the whole tumor resectoscope can be flexibly used and installed; meanwhile, the arrangement of the negative pressure tube and the collection bag can collect the excised tumor tissue and the outflowing bad blood.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

FIG. 1 is a top view of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

reference numerals:

10-a scissors body, 11-a first cutter body, 12-a second cutter body, 12-a cutting part, 14-a holding part, 20-a first fixing mechanism, 21-a first fixing block, 22-a first sliding sleeve, 23-a return spring, 24-a first fixing groove, 30-a second fixing mechanism, 31-a second fixing block, 32-a second sliding sleeve, 33-a second fixing groove, 40-a negative pressure mechanism, 41-a negative pressure pipe, 42-a first negative pressure hole, 43-a second negative pressure hole, 44-a filter screen, 45-a negative pressure pump and 50-a collecting bag.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate and imply that the positions or elements referred to must have particular orientations, be constructed and operated in particular ways, and thus, are not to 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 one or more features. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to fig. 1, the tumor resectoscope provided by the present invention includes a scissors main body 10, a first fixing mechanism 20, a second fixing mechanism 30 and a negative pressure mechanism 40, wherein the scissors main body 10 includes a first knife body 11 and a second knife body 12, the first knife body 11 and the second knife body 12 are hinged, and both the first knife body 11 and the second knife body 12 include a cutting portion 12 and a holding portion 14. The first fixing mechanism 20 and the second fixing mechanism 30 are oppositely arranged on the two cutting parts 12, the medical staff holds the holding part 14 to enable the first fixing mechanism 20 and the second fixing mechanism 30 to move oppositely to clamp and fix the tumor tissue, and then the tumor tissue is cut through the cutting parts 12. The negative pressure mechanism 40 is provided on the second fixing mechanism 30, and sucks impurities such as bad blood flowing out when the tumor is excised.

The first fixing mechanism 20 is detachably provided in the cut-out portion 12 of the first blade 11, and the second fixing mechanism 30 is detachably provided in the cut-out portion 12 of the second blade 12. Specifically, the first fixing mechanism 20 includes a first fixing block 21, a first sliding sleeve 22 and a return spring 23, a first fixing groove 24 is formed in a side surface of the first fixing block 21, a side wall of the first fixing groove 24 extends out of a side edge of the first fixing block 21, the first sliding sleeve 22 is disposed in the first fixing groove 24, one end of the return spring 23 is connected with the side wall of the first fixing groove 24, and the other end of the return spring is connected with a side edge of the first sliding sleeve 22, so that the first sliding sleeve 22 can move along with the extension and retraction of the return spring 23. The side edge of the first sliding sleeve 22 far away from the return spring 23 is provided with an opening along the length direction, and the first sliding sleeve 22 is slidably sleeved on the outer side of the cutting part 12 of the first cutter body 11, so that the first sliding sleeve 22 can be detached and installed on the cutting part 12 of the first cutter body 11, and the cutter is flexible and convenient. The blade of the cutting part 12 of the first cutter 11 extends to the outside from the opening of the first sliding sleeve 22, and the back of the cutting part 12 of the first cutter 11 is sleeved inside the first sliding sleeve 22. The width of the cut-off portion 12 of the first blade body 11 is smaller than the width of the first holding groove 24, so that the entire cut-off portion 12 of the first blade body 11 is received in the first holding groove 24, and the return spring 23 is in a natural expansion state in an initial state.

The second fixing mechanism 30 includes a second fixing block 31 and a second sliding sleeve 32 with an opening, a second fixing groove 33 is formed in a side surface of the second fixing block 31, and a side wall of the second fixing groove 33 extends out of a side edge of the second fixing block 31. The second sliding sleeve 32 is fixedly connected in the second fixing groove 33, and the cut-off portion 12 of the second knife body 12 is slidably disposed in the second fixing groove 33 through the second sliding sleeve 32, so that the second sliding sleeve 32 can be detached and mounted on the cut-off portion 12 of the second knife body 12, and the knife is flexible and convenient. The blade part of the cutting part 12 of the second cutter body 12 extends to the outside from the opening of the second sliding sleeve 32, and the back part of the cutting part 12 of the second cutter body 12 is sleeved inside the second sliding sleeve 32. Wherein, the edge side of the cutting part 12 of the second cutter body 12 is flush with the side surface of the second fixing block 31.

When the medical staff holds the holding part 14 of the first cutter body 11 and the holding part 14 of the second cutter body 12 to operate, the first fixing mechanism 20 and the second fixing mechanism 30 move oppositely, and the first fixing block 21 and the second fixing block 31 clamp and fix the tumor tissue; when the medical staff continues to hold the holding part 14, the cutting part 12 of the first knife body 11 drives the first sliding sleeve 22 to continue moving towards the cutting part 12 of the second knife body 12, so that the return spring 23 is extended, and finally the tumor tissue is cut off. Then, the sliding sleeve carries the cut-out portion 12 of the first cutter 11 back to the initial position by the restoring force of the restoring spring 23.

Preferably, the cutting portion 12 of the first knife body 11 is obliquely disposed toward the outer side of the first fixing groove 24, the cutting portion 12 of the second knife body 12 is obliquely disposed, and the cutting portion 12 of the second knife body 12 is obliquely disposed toward the outer side of the second fixing groove 33, so that the blade portions of the two cutting portions 12 are inclined toward each other, thereby effectively cutting off tumor tissue by medical staff and preventing the cutting portion 12 from cutting off all tumor tissue clamped and fixed by the first fixing block 21 and the second fixing block 31. Wherein, first fixed block 21 and second fixed block 31 are made by transparent material for medical personnel can see excision portion 12 through first fixed block 21 and second is fixed, masters the position of the excision tumour of excision portion 12.

Referring to fig. 2, in the embodiment, the negative pressure mechanism 40 includes a negative pressure tube 41, a plurality of first negative pressure holes 42 are formed in the side wall of the second fixing groove 33, a second negative pressure hole 43 is formed in the bottom surface of the second fixing block 31, the second negative pressure hole 43 is communicated with the plurality of first negative pressure holes 42, one end of the negative pressure tube 41 is communicated with one end of the second negative pressure hole 43 away from the first negative pressure hole 42, and the other end is used for being connected with the negative pressure pump 45. Wherein, be equipped with filter screen 44 on the first negative pressure hole 42, filter screen 44 can prevent that great impurity from getting into first negative pressure hole 42 and leading to second negative pressure hole 43 to block up.

When the medical staff cuts off the tumor tissue, the bad blood in the tissue flows out, the negative pressure pump 45 provides negative pressure power, flows into the second negative pressure hole 43 through the first negative pressure hole 42 and is discharged from the negative pressure pipe 41.

In this embodiment, the collecting bag 50 is disposed at the front end of the second fixing block 31, the opening of the collecting bag 50 is communicated with one side surface of the second fixing groove 33, the second negative pressure hole 43 penetrates the front end of the second fixing block 31, and the second negative pressure hole 43 is communicated with the collecting bag 50. The diameter of the second suction hole 43 near the end of the collection bag 50 is smaller than the diameter of the second suction hole 43 far from the end of the collection bag 50. The second negative pressure hole 43 communicates with the collection bag 50 to make the interior of the collection bag 50 in a negative pressure state, thereby allowing the excised tumor tissue to fall into the collection bag 50.

The working principle of the invention is as follows: when in use, the first sliding sleeve 22 is sleeved outside the cut-off part 12 of the first cutter body 11, and the second sliding sleeve 32 is sleeved outside the cut-off part 12 of the second cutter body 12; then, the cut-out portion 12 is extended to the vicinity of the tumor tissue with the notches of the first and second fixing

grooves

24 and 33 facing the tumor tissue; then the holding part 14 of the first cutter body 11 and the holding part 14 of the second cutter body 12 are held to operate, the first fixing block 21 and the second fixing block 31 move oppositely to clamp and fix the tumor tissue, the holding part 14 is continuously held to enable the cutting parts 12 of the first cutter body 11 and the second cutter body 12 to be close to each other to cut the tumor tissue, meanwhile, the necrotic blood flowing out after the tumor tissue is cut is discharged from the negative pressure pipe 41 through the first negative pressure hole 42, and the cut tumor tissue falls into the collecting bag 50; the grips 14 of the first and

second cutter bodies

11, 12 are released and the cut-out portions 12 return to the original positions.

The invention has the beneficial effects that: the tumor resectoscope is oppositely arranged through the first fixing block 21 and the second fixing block 31, and tumor tissues are clamped and fixed in one step before the first cutter body 11 and the second cutter body 12 are contacted, so that a doctor can independently use a single instrument to complete operation, the operation space occupied by a plurality of instruments is saved, and the requirement of minimally invasive surgery is met; the first fixing mechanism 20 and the second fixing mechanism 30 can be detachably arranged and can be separated from the scissors main body 10, so that the whole tumor resectoscope can be flexibly used and installed; meanwhile, the arrangement of the negative pressure tube 41 and the collection bag 50 can collect the excised tumor tissue and the outflowing bad blood.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. A tumor resector, comprising:

the scissors comprise a scissors main body, wherein the scissors main body comprises a first cutter body and a second cutter body, the first cutter body and the second cutter body are hinged, and the first cutter body and the second cutter body both comprise a cutting part and a holding part;

the first fixing mechanism is detachably arranged on the cutting part of the first cutter body, the first fixing mechanism comprises a first fixing block, a first sliding sleeve and a return spring, a first fixing groove is formed in the side surface of the first fixing block, and one side wall of the first fixing groove extends out of the side edge of the first fixing block, the first sliding sleeve is arranged in the first fixing groove, one end of the reset spring is connected with the side wall of the first fixed groove, the other end of the reset spring is connected with one side edge of the first sliding sleeve, an opening is arranged on the side edge of the first sliding sleeve, which is far away from the reset spring, along the length direction, the first sliding sleeve is sleeved on the outer side of the cutting part of the first cutter body in a sliding manner, the cutting part of the first cutter body extends to the outer side from the opening of the first sliding sleeve, the back of the cut part of the first cutter body is sleeved inside the first sliding sleeve, and the width of the cut part of the first cutter body is smaller than that of the first fixing groove; and

the second fixing mechanism is detachably arranged on the cut-off part of the second cutter body and comprises a second fixing block and a second sliding sleeve with an opening, a second fixing groove is formed in the side surface of the second fixing block, and the cut-off part of the second cutter body is arranged in the second fixing groove in a sliding mode through the second sliding sleeve;

the side edge of the cutting part of the second cutter body is flush with the side edge surface of the second fixed block; the cutting part of the first cutter body is obliquely arranged, the cutting part of the first cutter body inclines towards the outer side of the first fixing groove, the cutting part of the second cutter body is obliquely arranged, and the cutting part of the second cutter body inclines towards the outer side of the second fixing groove; be equipped with negative pressure mechanism on the second fixed establishment, negative pressure mechanism includes the negative pressure pipe, a plurality of first negative pressure holes have been seted up to the lateral wall of second fixed slot, the second negative pressure hole has been seted up to the bottom surface of second fixed block, and second negative pressure hole and a plurality of first negative pressure hole all communicate, the one end intercommunication in first negative pressure hole is kept away from with the second negative pressure hole to the one end of negative pressure pipe, and the other end is used for being connected with the negative pressure pump.

2. A tumor resectoscope according to claim 1, wherein: and a filter screen is arranged on the first negative pressure hole.

3. A tumor resectoscope according to claim 2, wherein: the front end of the second fixing block is provided with a collecting bag, and an opening of the collecting bag is communicated with the second fixing groove.

4. A tumor resectoscope according to claim 3, wherein: the second negative pressure hole runs through the front end of the second fixing block, the second negative pressure hole is communicated with the collecting bag, and the diameter of the second negative pressure hole close to one end of the collecting bag is smaller than the diameter of the second negative pressure hole far away from one end of the collecting bag.