CN209645018U - A kind of protectiveness, which is preferably performed the operation, uses removal tool - Google Patents

Abstract

The utility model discloses a kind of protectiveness preferably operation removal tools, belong to medical operation removal tool field, including outer cutter component and the interior cutter component being located in outer cutter component, the interior cutter component and outer cutter component relatively rotate setting, the outer cutter component is equipped with notch, the interior cutter component part exposes to notch, interior cutter component and outer cutter component cut off the tissue close to incision when relatively rotating, the end of the interior cutter component is equipped with the edge of a knife, first inner chamber is equipped in interior cutter component, the edge of a knife is connected to first inner chamber, it is equipped in the first inner chamber along the interior knife plug that first inner chamber is axial to be set, first inner chamber is communicated with negative pressure equipment, portable protective gaps are formed between the interior knife plug week side wall and first inner chamber wall.The utility model has the advantage of that can effectively reduce rate of accidentally cutting, the protectiveness of normal tissue is more preferable.

Description

A kind of protectiveness, which is preferably performed the operation, uses removal tool

[technical field]

Utility model is related to a kind of protectiveness preferably operation removal tool, belongs to medical endoscope surgical apparatus neck Domain.

[background technique]

When medically, to body operation, need to use various surgical knife tools, and the surgical knife tool of endoscope type is past Toward being to belong to the relatively high equipment of accuracy, for the planing tool to cut off class, primary structure includes outer knife and is arranged in outer knife Internal interior knife, interior knife can be rotated, and outer knife end is equipped with notch, and the end of interior knife is equipped with cutter head, and cutter head is exposed at notch, when needing When cutting off destination organization, by notch close to destination organization, cutter head cuts off tissue when interior swivel is dynamic, the tissue after excision It is sucked out by the biggish suction device of some suction.

The removal tool of current this kind of operation, when carrying out excision operation to destination organization, is being moved since notch is larger The normal tissue being likely to be exposed around pathological tissues during dynamic, is accidentally cut, such hand so as to cause normal tissue Art risk is higher.

[summary of the invention]

Utility model technical problem to be solved is overcome the deficiencies in the prior art and provides a kind of operation excision Cutter, can effectively reduce rate of accidentally cutting, and the protectiveness of normal tissue is more preferable.

Above-mentioned technical problem is solved, utility model adopts the following technical scheme that

A kind of protectiveness is preferably performed the operation with removal tool, including outer cutter component and the interior knife structure being located in outer cutter component Part, the interior cutter component and outer cutter component relatively rotate setting, and the outer cutter component is equipped with notch, the interior cutter component part Notch is exposed to, interior cutter component and outer cutter component cut off the tissue close to incision when relatively rotating, the interior knife structure The end of part is equipped with the edge of a knife, is equipped with first inner chamber in interior cutter component, the edge of a knife is connected to first inner chamber, in the first inner chamber Equipped with along the interior knife plug that first inner chamber is axial to be set, first inner chamber is communicated with negative pressure equipment, the interior knife plug week side wall and Portable protective gaps are formed between first inner chamber wall.

Using utility model the utility model has the advantages that

In the utility model, an interior knife plug is separately provided in the first inner chamber of interior cutter component, which sets After setting in interior cutter component, it is formed with gap between all side walls and first inner chamber wall of interior knife plug, which is obviously less than The internal diameter of first inner chamber, thus formed a portable protective gaps, and cut off after tissue suction function under also can by the gap into Row discharge, so, due to limited space, a large amount of tissues will not be cut off the short time when some normal tissues are accidentally cut, to operation Personnel have the enough reaction time to be adjusted, and traditional removal tool, the notch of outer cutter component are larger, interior cutter component it is interior Chamber is also larger, so that cutter after touching normal tissue, can cut off a large amount of tissues in the short time, this proposes medical staff Very high operation requirement, and after using the utility model, for medical staff, it is clear that it can be substantially reduced operation difficulty, For patients, can it is more efficiently protection patient normal tissue, protectiveness is more preferable, from another level for, Conflict between doctors and patients can be reduced.

Preferably, the distance of the portable protective gaps is between 0.3mm~3.5mm.

Preferably, being equipped with second inner chamber in the interior knife plug, the second inner chamber is connected to negative pressure equipment, the interior knife The connecting hole for being equipped with connection first inner chamber and second inner chamber in the radial direction of plug.

Preferably, the diameter of the connecting hole is between 0.5mm~2.5mm.

Preferably, the diameter of the connecting hole is D1, the distances of the portable protective gaps is D2, and D1/D2 meet 1/4~ 3/4。

Preferably, the axial length of the interior knife plug is between 3mm~20mm.

Preferably, all side walls of the interior knife plug are equipped at least two connecting holes.

Preferably, the interior knife plug and the end wall laser welding of interior cutter component are formed, not with interior cutter component matching Interior knife plug with outer diameter is to adjust portable protective gaps.

Preferably, the interior cutter component includes head segment and main paragraph, the interior knife plug is fixed in head segment, institute Head segment is stated to be fixedly connected with main paragraph.

Preferably, the interior cutter component is being connected with interior tool apron far from interior knife plug side, the interior tool apron is connected with Elastic component, the elastic component for the interior tool apron provide axial force so that interior cutter component end and the end phase of outer cutter component It supports.

These features and advantages of utility model will the detailed exposure in following specific embodiment, attached drawing.

[Detailed description of the invention]

Utility model is described further with reference to the accompanying drawing:

Fig. 1 is the overall structure diagram of the utility model embodiment one；

Fig. 2 is one China and foreign countries' cutter component of the utility model embodiment, the assembling schematic diagram of interior cutter component；

Fig. 3 is one China and foreign countries' cutter component of the utility model embodiment, the perspective view of the explosion of interior cutter component；

Fig. 4 is one China and foreign countries' cutter component of the utility model embodiment, the schematic cross-sectional view of interior cutter component；

Fig. 5 is the enlarged diagram in Fig. 4 at A.

[specific embodiment]

The technical solution of utility model embodiment is explained and illustrated below with reference to the attached drawing of utility model embodiment, But following embodiments are only the preferred embodiment of utility model, and not all.Based on the implementation example in the implementation mode, this field skill Art personnel obtained other embodiments without making creative work, belong to the protection scope of utility model.

In the following description, occur term "inner", "outside", "upper", "lower", the indicating positions such as "left", "right" or Positional relationship, description embodiment merely for convenience and simplified description, rather than the device or member of indication or suggestion meaning Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to utility model.

Embodiment one

As shown in Figures 1 to 5, the present embodiment preferably performs the operation for a kind of protectiveness and uses removal tool, and the present embodiment is main For cutting off the pathological tissues of the human organs such as uterus, bladder, naturally it is also possible to for cutting off the pathological tissues of other organ, this The removal tool of embodiment, including outer cutter component 1, outer 1 inner hollow of cutter component, inside have interior cutter component 2, outer cutter component 1 Being usually with interior cutter component 2 is in elongated tubular product, can equally protrude into human body perform the operation similar to endoscope in this way, the interior knife Component 2 and outer cutter component 1 relatively rotate setting, and the outer cutter component 1 is equipped with notch 11, and usual notch 11 is preferably in outer knife structure The end of part 1, interior 2 part of cutter component expose to notch 11, and there is the edge of a knife 21 at the position that interior cutter component 2 is exposed at notch 11, The edge of a knife 21 generally has zigzag protrusion 200, the edge of a knife 21 of high-speed rotation in outer cutter component 1, to close to the group at notch 11 It knits and is cut off.

The main improvement of the present embodiment is, first inner chamber 201, first inner chamber 201 and the edge of a knife are equipped with inside interior cutter component 2 21 are connected to, and zigzag protrusion 200 is equipped at the edge of a knife 21, are equipped with axial along first inner chamber 201 in the first inner chamber 201 and set Interior knife plug 3, first inner chamber 201 are communicated with negative pressure equipment, shape between 3 weeks side walls of interior knife plug and 201 wall of first inner chamber At portable protective gaps 300.

In the present embodiment, since an interior knife plug 3 being separately provided in the first inner chamber 201 of interior cutter component 2, this is interior After knife plug 3 is arranged in interior cutter component 2, it is formed with gap between 201 wall of all side walls and first inner chamber of interior knife plug 3, it should Gap is obviously less than the internal diameter of first inner chamber 201, thus one portable protective gaps 300 of gap formation, and the tissue after cutting off It can be also discharged under the action of negative pressure by the portable protective gaps 300, so when some normal tissues are accidentally cut, due to space It is limited, it excision will not largely be organized in the short time, there is the enough reaction time to be adjusted to operator, and traditional excision The notch 11 of cutter, outer cutter component 1 is larger, and the inner cavity of interior cutter component 2 is also larger, so that cutter once touches normal tissue Afterwards, a large amount of tissues can be cut off in the short time, this proposes very high operation requirement to medical staff, and uses the utility model Afterwards, for medical staff, it is clear that it can be substantially reduced operation difficulty, it for patients, can more efficiently protection trouble The normal tissue of person, protectiveness is more preferable, from another level for, conflict between doctors and patients can also be reduced.

In order to optimize protecting effect, the distance of portable protective gaps 300 described in the present embodiment is between 0.3mm~3.5mm, and one As be preferably preferred in 1mm, 1.5mm, if the portable protective gaps 300 are too small, will lead to the tissue after being removed from portable protective gaps Discharge is not smooth enough in 300, because pathological tissues need the negative pressure by first inner chamber 201, is sucked out out of portable protective gaps 300 It goes, if the portable protective gaps 300 are too big, preferable protecting effect is not had instead, because of some normal tissues accidentally cut It is also possible to quickly be cut off and be discharged.

In addition, for the target lesion tissue that better precise positioning needs to cut off well, the interior knife is stifled in the present embodiment Second inner chamber 301 is equipped in first 3, the second inner chamber 301 is connected to negative pressure equipment, and the interior knife plug 3 is set in the radial direction There is the connecting hole 32 of connection first inner chamber 201 and second inner chamber 301, after connecting hole 32 is arranged, connecting hole 32 can be used as a suction Attached hole, once connecting hole 32 is close to pathological tissues, after negative pressure equipment is opened, pathological tissues will be adsorbed on connecting hole 32, be made Larger displacement will not be generated by obtaining cutter head, and reduction accidentally cuts rate to the normal tissue around pathological tissues.It should be noted that second The negative pressure equipment that inner cavity 301 connects, the negative pressure equipment that first inner chamber 201 connects, can be the same equipment, be also possible to individually Independent two equipment, the certainly preferably same equipment, first inner chamber 201 and second inner chamber 301 are interconnected.

For connecting hole 32, the diameter D1 in hole is preferably between 0.5mm~2.5mm, preferably 1mm or 1.5mm.If The aperture of connecting hole 32 is smaller, then it is too small to will lead to the entire area of connecting hole 32, bad to the adsorption effect of pathological tissues；And such as Fruit aperture is larger, is easy to will affect protecting effect so that the normal tissue accidentally cut directly passes through connecting hole 32 and is discharged.

In addition, the relationship in connecting hole 32 aperture and portable protective gaps 300 is also optimized in the present embodiment, it is described The diameter of connecting hole 32 is D1, and the distance of the portable protective gaps 300 is D2, and D1/D2 meets 1/4~3/4, it is often preferred that D1/D2=1/2, the proportionate relationship are to guarantee that portable protective gaps 300 are larger than the aperture of connecting hole 32, can guarantee cut in this way The tissue removed can be discharged from portable protective gaps 300, if the aperture of connecting hole 32 is greater than portable protective gaps 300, removed group It is woven with the problems such as may being discharged out of connecting hole 32, be easy to produce blocking in this way, and D1/D2 is maintained between 1/4~3/4, it can To guarantee portable protective gaps 300 as far as possible as main passing away, and connecting hole 32 is mainly as suction-operated.

In addition, the length of internal knife plug 3 also optimizes in the present embodiment, the axial length of the interior knife plug 3 exists Between 3mm~20mm.It should be noted that referred to herein axial, radial etc., cutter component 2 and outer cutter component 3 within being For referring to for, the axial length of interior knife plug 3 is generally preferably in 8mm, 9mm, 10mm etc., and the axial length of interior knife plug 3 is such as Fruit is too short, then is easy to cause the length of portable protective gaps 300 too short, and protecting effect is not good enough, if portable protective gaps 300 are too big, holds It is easier that portable protective gaps 300 are excessively long and narrow, it is easy to cause tissue discharge unsmooth.

In terms of other, in the present embodiment, on all side walls of the interior knife plug 3, at least two connecting holes 32 are preferably provided with, Because each stop position of interior cutter component 2 may be not fixed, each stop position be equivalent to next time absorption initial position, and When absorption, usually to guarantee 32 alignment cuts of connecting hole, 11 position as far as possible, and after multiple connecting holes 32 are set, guarantee to lean on as far as possible A connecting hole 32 is had at nearly notch 11, thus guarantee that the initial position of cutter component 2 in every time can be carried out adsorption operations, Reduce the operation of adjustment connecting hole 32.

Due to different operations, the tissue of corresponding excision has difference, so protection corresponding to different removal tools Gap 300 would also vary from, and in the present embodiment, the interior knife plug 3 and the end wall laser welding of interior cutter component 2 are formed, together A interior cutter component 2 can match the interior knife plug 3 of various outer diameter to adjust portable protective gaps 300, design in this way, interior cutter component 2 Body be it is general, when needing different portable protective gaps 300, can in interior cutter component 2 laser welding various outer diameter size Interior knife plug 3, for manufacturing, it is only necessary to which knife plug 3 in production difference, other component may be implemented to lead to With this modular design is highly beneficial to manufacturing.

In addition, interior cutter component 2 described in the present embodiment includes head segment 2a and main paragraph 2b, described for other aspects Interior knife plug 3 is fixed in head segment 2a, and the head segment 2a is fixedly connected with main paragraph 2b.It is general for being equivalent to main paragraph 2b , if necessary when the removal tool of different portable protective gaps 300, replace different head segment 2a.

In addition, as shown in figure 4, the interior cutter component 2 is being connected with interior tool apron 4, the interior knife far from interior 3 side of knife plug Seat 4 is connected with elastic component 41, and the elastic component 41 is that the interior tool apron 4 provides axial force so that the end of interior cutter component 2 and outer The end of cutter component 1 offsets.Because interior cutter component 2 will be realized in outer 1 inner rotation of cutter component, therefore between the two cannot complete mistake Be full of cooperation, optimal fit-up gap is zero clearance, however because the problem of actual processing technique or assembly technology, often without Method realizes this ideal fit-up gap, and either axial direction or radial direction all inevitably has gap.And the present embodiment In, internal tool apron 4 connects an elastic component 41, and elastic component 41 is preferably spring in the present embodiment, which can be to interior knife Seat 4 provides an axial elastic force, so that the end of interior cutter component 2 can be tightly attached to always on the inner wall of end of outer cutter component 1, Axial play can be reduced in this way, and stability is more preferable.

Certainly, for the present embodiment removal tool, hand-held part 5 is further comprised, 5 sets of the hand-held part is in outer cutter component 1 Outside, outer cutter component 1 is fixed on hand-held part 5 by a lock cutter mechanism 6, and hand-held part 5 is connected with instrument interface 51, instrument interface 51 are connected with negative pressure equipment, there is instrument channel inside hand-held part 5, and instrument channel one end is connected to instrument interface 51, the other end with First inner chamber 201, second inner chamber 301 are connected to, so that negative pressure is generated to first inner chamber 201, second inner chamber 301, in addition, hand-held part Be additionally provided on 5 it is multiple start switch 52, for controlling the rotation of interior cutter component 2 or stopping, can be used for control negative pressure equipment It opens or closes.

The above, the only specific embodiment of utility model, but the protection scope of utility model is not limited thereto, Being familiar with the those skilled in the art should be understood that utility model includes but is not limited to attached drawing and retouches in specific embodiment above The content stated.The modification of any function and structure principle without departing from utility model is intended to be included in the range of claims In.

Claims (10)

1. a kind of protectiveness is preferably performed the operation with removal tool, including outer cutter component and the interior cutter component being located in outer cutter component, The interior cutter component and outer cutter component relatively rotate setting, and the outer cutter component is equipped with notch, outside the interior cutter component part It is exposed to notch, interior cutter component and outer cutter component cut off the tissue close to incision when relatively rotating, which is characterized in that institute The end for stating interior cutter component is equipped with the edge of a knife, and first inner chamber is equipped in interior cutter component, and the edge of a knife is connected to first inner chamber, and described the It is equipped in one inner cavity along the interior knife plug that first inner chamber is axial to be set, first inner chamber is communicated with negative pressure equipment, the interior knife plug Portable protective gaps are formed between all side walls and first inner chamber wall.

2. operation removal tool as described in claim 1, which is characterized in that the distance of the portable protective gaps 0.3mm~ Between 3.5mm.

3. operation removal tool as described in claim 1, which is characterized in that second inner chamber is equipped in the interior knife plug, The second inner chamber is connected to negative pressure equipment, and the interior knife plug is equipped with connection first inner chamber and second inner chamber in the radial direction Connecting hole.

4. operation removal tool as claimed in claim 3, which is characterized in that the diameter of the connecting hole 0.5mm~ Between 2.5mm.

5. operation removal tool as claimed in claim 3, which is characterized in that the diameter of the connecting hole is D1, the guarantor The distance for protecting gap is D2, and D1/D2 meets 1/4~3/4.

6. operation removal tool as described in claim 1, which is characterized in that the axial length of the interior knife plug is in 3mm Between~20mm.

7. operation removal tool as described in claim 1, which is characterized in that all side walls of the interior knife plug are equipped with extremely Few two connecting holes.

8. operation removal tool as described in claim 1, which is characterized in that the end wall of interior the knife plug and interior cutter component Laser welding is formed, with the interior knife plug of interior cutter component matching various outer diameter to adjust portable protective gaps.

9. operation removal tool as described in claim 1, which is characterized in that the interior cutter component includes head segment and main body Section, the interior knife plug are fixed in head segment, and the head segment is fixedly connected with main paragraph.

10. operation removal tool as described in claim 1, which is characterized in that the interior cutter component is far from interior knife plug Side is connected with interior tool apron, and the interior tool apron is connected with elastic component, the elastic component for the interior tool apron provide axial force so that The end of interior cutter component and the end of outer cutter component offset.