CN218773918U - Clamp type suction cutter - Google Patents

Abstract

The utility model provides a jaw type attracts cutterbar, including cutting assembly, negative pressure subassembly, promotion subassembly and collection piece. The cutting assembly comprises a pipe body, a notch arranged on the side wall of the pipe body and a cutter capable of sliding in the pipe body, and the cutting edge end of the cutter is close to the notch; the negative pressure assembly is arranged at one end of the pipe body, and the cutter is connected with the negative pressure assembly, so that the cutter is pushed to cut while the negative pressure assembly is pushed; the pushing assembly is used for pushing the negative pressure assembly to enable the negative pressure assembly to generate negative pressure; the collecting piece is arranged on the side wall of the pipe body and communicated with the pipe body, and the collecting piece is positioned between the cut and the negative pressure assembly; moving the cutter causes the blade end of the cutter to slide through the incision. The utility model discloses a cutterbar collection is as an organic whole with the collection to the cutting of polyp, need not to change equipment, accomplishes the cutting to the polyp when producing the negative pressure, has reduced the operating procedure to save subassembly such as external power cord and external negative pressure pipeline, simplified the structure of equipment greatly and also reduced the cost of equipment.

Description

Clamp type suction cutter

Technical Field

The utility model relates to the field of otolaryngology department surgical instruments, in particular to a clamp type suction cutter.

Background

At present, most nasal cavity and sinus operations are minimally invasive under the monitoring of an intranasal endoscope. When performing the endoscopic sinus surgery, a surgeon needs to hold the endoscope with one hand and hold the surgical instrument with the other hand for performing the surgery, namely, the surgeon operates the instrument with one hand during the surgery. Because the instrument can be operated by only one hand, doctors usually use the nasal sinus forceps to cut off the pathological tissue, then withdraw the nasal sinus forceps, and replace the nasal sinus forceps with a suction apparatus to suck out the cut pathological tissue and blood clots. The method needs to continuously replace the nasal sinus forceps and the suction apparatus, so the efficiency is low, when the bleeding is more in the operation area, the operation visual field is not clear due to the fact that fresh blood cannot be sucked out in time, the anatomical structure is difficult to identify, the operation process is influenced slightly, and important structures such as brain tissues, internal carotid arteries and the like are damaged seriously, so fatal complications are caused. CN200610050359.5 (medical operation suction cutter) discloses an operation suction cutter which can remove pathological tissues and suck out fresh blood and tissue fragments in an operation area without repeatedly replacing instruments, thereby improving the working efficiency. However, the suction cutter needs an external power supply to supply power and external negative pressure equipment to provide negative pressure, and the whole set of equipment comprises a host, a host support frame, an external power line, an external negative pressure pipeline, a foot switch, a cutter handle, a cutter head and other parts, so that the problems of complex equipment structure, long assembly and connection time consumption, high manufacturing cost, repeated disinfection and reuse and the like are caused, and the popularization and the application of the suction cutter are influenced.

In view of the above, how to make the suction cutter more convenient to use is a technical problem to be solved in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pincers type suction cutterbar.

The utility model discloses it is too complicated awkward problem of current attraction cutterbar structure to solve.

In order to solve the problem, the utility model discloses a following technical scheme realizes:

a simple suction cutter comprises a cutting component, a negative pressure component, a pushing component and a collecting component. The cutting assembly comprises a pipe body, a notch arranged on the side wall of the pipe body and a cutter capable of sliding in the pipe body, and the cutting edge end of the cutter is close to the notch; the negative pressure assembly is arranged at one end of the pipe body, and the cutter is connected with the negative pressure assembly, so that the cutter is pushed to cut while the negative pressure assembly is pushed; the pushing assembly is used for pushing the negative pressure assembly so that the negative pressure assembly generates negative pressure; the collecting piece is arranged on the side wall of the pipe body and communicated with the pipe body, and the collecting piece is positioned between the cut and the negative pressure assembly; moving the cutter causes the blade end of the cutter to slide through the slit.

Further, a guide piece is arranged on the cutter and used for enabling the cutter to be attached to the inner wall of the pipe body to move.

Furthermore, the guide piece is a guide ring arranged at one end of the cutter, which is far away from the negative pressure assembly, and the outer periphery of the guide ring is matched with the inner periphery of the pipe body; or the guide piece is a guide post arranged on the two longitudinal sides of the cutter, and a guide groove matched with the guide post is arranged in the pipe body.

Further, one end of the cutter, close to the cut, is in a tubular shape and is matched with the pipe body.

Further, the negative pressure assembly comprises an inflator pump capable of longitudinally stretching, a first one-way valve arranged on the inflator pump and a second one-way valve arranged at the position, opposite to the inner cavity of the tube body, of the inflator pump; the inflator pump is arranged at the end of the tube body and is communicated with the tube body, the first one-way valve is used for exhausting the inflator pump outwards, and the second one-way valve is used for exhausting the inflator pump towards the tube body.

Furthermore, a built-in pipe is arranged on one side, close to the pushing assembly, of the inflator pump in a direction away from the pushing assembly, the built-in pipe is communicated with the pipe body, and the built-in pipe is used for placing one end, away from the cut, of the cutter.

Furthermore, the pushing assembly comprises scissors pincers and a supporting rod positioned on one side, far away from the cut, of the inflator pump, and two points on the same side of the intersection point of the scissors pincers are provided with holding parts; one of the two supporting points on the other side is movably connected to the side wall of the pipe body, and the other supporting point is slidably sleeved on the supporting rod.

Furthermore, buffering parts are respectively arranged on the two sides of the supporting rod, which are positioned at the supporting point of the scissors pliers.

Furthermore, keep away from the pump bolster with bracing piece threaded connection, the fulcrum of scissors pincers with the body is pin junction.

Furthermore, the collecting part is annularly arranged on the outer wall of the pipe body between the cut and the negative pressure assembly, and the collecting part is connected with the pipe body through clamping or threads.

Compared with the prior art, the utility model discloses technical scheme and beneficial effect as follows:

(1) The utility model discloses a cutter collection polyp's cutting and collection are as an organic whole, need not to change equipment, accomplishes the cutting to the polyp when producing the negative pressure, has reduced the operating procedure to save subassembly such as external power source line and external negative pressure pipeline, the structure of having simplified equipment greatly has also reduced the cost of equipment.

(2) The utility model discloses a negative pressure subassembly is in the same place the ingenious collocation of inflator pump and one-way valve for manual extrusion inflator pump can realize the effect that the negative pressure attracts, has saved subassemblies such as external power cord and external negative pressure pipeline.

(3) The utility model discloses a cutter is provided with the guide for the inner wall of cutter laminating body all the time slides, thereby makes the cutting edge end of cutter with the more thorough of polyp cutting.

(4) The utility model discloses be provided with the promotion subassembly, promote the extrusion pump through scissors pincers, utilize lever principle for executing the art the person better hard.

Drawings

Fig. 1 is a structural diagram (partial assembly section) of a pincer-type suction cutter provided by an embodiment of the present invention;

FIG. 2 isbase:Sub>A sectional view taken along line A-A of FIG. 1;

fig. 3 is a sectional view of a simple suction cutter provided by the second embodiment of the present invention;

FIG. 4 is a cross-sectional view taken in the direction B-B of FIG. 3;

fig. 5 is a cross-sectional view of a simple suction cutter provided in the third embodiment of the present invention;

fig. 6 is a cross-sectional view of a simple suction cutter provided in the fourth embodiment of the present invention;

FIG. 7 is an enlarged view of the inflator of FIG. 6;

FIG. 8 is a further illustration of the inflator of FIG. 6.

Illustration of the drawings:

a pipe body-1; guide groove-111; incision-2; a cutter-3; a blade end-31; a guide-4; an inflator-5; a first one-way flap-6; a second one-way valve-7; a collecting member-8; scissor pliers-9; a support rod-10; a buffer-11; a grip-portion-12; a built-in pipe-13.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

Referring to fig. 1, a simple suction cutter includes a cutting assembly, a negative pressure assembly, a pushing assembly and a collecting member 8. The cutting assembly comprises a pipe body 1, a notch 2 arranged on the side wall of the pipe body 1 and a cutter 3 capable of sliding in the pipe body 1, and a blade end 31 of the cutter 3 is close to the notch 2. The negative pressure component is arranged at one end of the pipe body 1, the cutter 3 is connected with the negative pressure component, the cutter 3 is pushed to cut while the negative pressure component is pushed, and the cutter 3 is moved to enable the blade end 31 of the cutter to slide through the notch 2. The pushing assembly is used for pushing the negative pressure assembly, so that the negative pressure assembly generates negative pressure. The collecting piece 8 is arranged on the side wall of the pipe body 1 and is communicated with the pipe body 1, and the collecting piece 8 is positioned between the notch 2 and the negative pressure component.

During the use, stretch into the human body with the one end that body 1 was provided with incision 2, the polyp falls into body 1 from incision 2, utilize this moment to promote the subassembly and promote the negative pressure subassembly and produce the negative pressure when, thereby impel the polyp with cutting edge end 31 of cutter 3 towards incision 2 direction, the polyp falls into body 1, loosen the promotion extrusion to the negative pressure subassembly, the negative pressure that the negative pressure subassembly produced will attract the polyp to move towards the one end of negative pressure subassembly, thereby the polyp drops 8 in the collection piece that lies in between incision and negative pressure subassembly. The simple suction cutter integrates the cutting and the collection of polyps, does not need to replace equipment, finishes the cutting of the polyps when generating negative pressure, reduces operation procedures, saves operation time and relieves pain of patients. The negative pressure component is manually pushed to generate negative pressure, so that components such as an external power line, an external negative pressure pipeline and the like are omitted, the structure of the equipment is greatly simplified, and the cost of the equipment is also reduced.

It will be appreciated that the incision 2 is made as close as possible to the end of the tube 1 to avoid the tube 1 extending too far into the body and increasing discomfort to the patient. The body can be cylindric or cylindroid, and the body can also be the round platform type, and the internal diameter increases gradually from the incision towards the negative pressure subassembly direction promptly, prevents to block up.

Be provided with guide 4 on cutter 3, guide 4 is used for making the inner wall that cutter 3 laminated body 1 remove to make the cutting edge of cutter 3 hold the inner wall of laminating body 1 all the time and slide, when cutting the polyp, can be with the more thorough of polyp cutting.

Referring to fig. 2, in an embodiment, the guiding element 4 is a guiding ring disposed at an end of the cutting knife 3 away from the negative pressure assembly, an outer circumference of the guiding ring is adapted to an inner circumference of the tube, and the guiding element 4 is a guiding ring, so that the cutting knife 3 can completely slide along the inner tube of the tube 1, and the cut polyp can move toward the negative pressure assembly through the guiding element.

With continued reference to fig. 1, the negative pressure assembly includes an inflator 5 that is longitudinally retractable, a first one-way flap 6 disposed on the inflator, and a second one-way flap 7 disposed at a position where the inflator 5 is opposite to the inner cavity of the tube body 1. The inflator pump is arranged at the end part of the tube body 1 and is communicated with the tube body 1, the first one-way valve 6 is used for exhausting the inflator pump 5 towards the outside, and the second one-way valve 7 is used for exhausting the tube body 1 towards the inflator pump 5. A channel (not shown) is arranged between one side of the inflator pump 5, which is provided with the second one-way valve, and the inner wall of the tube body, and the channel is adapted to the longitudinal cross section of the cutter 5, so that the cutter 3 can slide smoothly while the influence on the negative pressure caused by the overlarge gap between the second one-way valve 7 and the cutter 3 is avoided.

When the inflatable cutting knife is used, the pushing assembly extrudes the inflator pump 5 towards the direction of the cut 2, the cutting knife 3 is pushed to slide towards the direction of the cut 2, and meanwhile, gas in the inflator pump 5 is discharged from the first one-way valve 6 to outside the inflatable book 5. After the cutting is finished, the extrusion on the inflator pump 5 is released, the air pressure in the inflator pump is smaller than the external air pressure, so that negative pressure is formed, air enters the inflator pump 5 from the cut 2, the tube body 1 and the second one-way valve 7, and the negative pressure generated in the deformation recovery process of the inflator pump 5 attracts polyps and fragmentary human tissues around the cut 2 into the collecting piece 8.

The pushing assembly comprises scissors pincers 9 and a supporting rod 10 positioned on one side, far away from the notch 2, of the inflator pump 5, and two points on the same side of the intersection point of the scissors pincers are provided with holding parts 12; one of the two supporting points at the other side is hinged on the side wall of the tube body 1, and the other supporting point is movably sleeved on the supporting rod 10. The support rod 10 is provided with buffer parts 11 at two sides of the pivot of the scissors clamp. More preferably, the buffer member 11 far away from the inflator 5 is in threaded connection with the support rod 10, and the pivot of the scissors clamp 9 is in pin connection with the tube body 1, so that the scissors clamp 9 is detachably connected with the tube body 1 and the support rod 10, and the cutter heads with different angles or different sizes can be replaced.

Medical personnel grip portion 12, move another fulcrum of scissors pincers 10 through control grip portion 12 to extrusion pump 5, the bolster of fulcrum both sides plays spacing effect on the one hand, and on the other hand plays the cushioning effect, makes the scissors pincers more stable when the extrusion pump.

The body outer wall between incision 2 and the negative pressure subassembly is located to the collection 8 ring of this embodiment, and specific ring is located between incision 2 and the one-way valve 7 of second, and no matter what angle the cutterbar is placed, when loosening scissors pincers 9, inflator pump 5 produces the negative pressure and adsorbs, and the human tissue that cuts down all can fall into in collecting 8. The collecting part 8 can be arranged in a mode of being detachably connected with the pipe body 1, the collecting part 8 divides the pipe body into a first part and a second part, and particularly, the collecting part and the first part and/or the second part are connected through clamping or threads, so that the pipe body 1 can be opened from the middle part, and the cleaning of a cutter is facilitated.

Example two

Referring to fig. 3 and 4, the present embodiment has the same principle as the first embodiment, but the difference is that the guide structure of the present embodiment is different, the guide 4 of the present embodiment is a guide post disposed on both sides of the cutting knife 3 in the longitudinal direction, a guide groove 111 adapted to the guide post is disposed inside the tube body 1, and the sliding of the guide post in the guide groove 111 ensures that the cutting knife 3 always slides along the inner wall of the tube body 1.

EXAMPLE III

Referring to fig. 5, the present embodiment has the same principle as the first embodiment, except that the present embodiment is not provided with a guiding element, and one end of the cutting knife 3 close to the slit 2 is set to be in a tubular shape adapted to the tube body 1, that is, the cutting edge end 31 is in a tubular shape, and the cutting knife 3 is adapted to the tube body 1, and plays a guiding role during cutting.

Example four

Referring to fig. 6 and fig. 7, in the present embodiment, an improvement is made on the basis of the first embodiment or the second embodiment or the third embodiment, in the present embodiment, an inner tube 13 is disposed on a side of the inflator 5 away from the tube body 1 and faces the tube body 1, the inner tube 13 is communicated with the tube body 1, and the inner tube 13 is used for placing one end of the cutting knife 3 away from the incision 2.

In this embodiment, the inflator 5 is only communicated with the outside through the first one-way valve 6 to exhaust air, and is only communicated with the tube body through the second one-way valve 7 to intake air, so that the negative pressure effect after the inflator 5 is extruded is further ensured.

It should be noted that the wall of the inner tube 13 may be in a wave shape, a zigzag shape or other irregular shapes, as shown in fig. 8, so that when the inflator 5 is squeezed, the inner tube 13 is compressed along with the same direction, and the wall of the inner tube 13 is prevented from being deformed due to compression and interfering with the cutter 3.

The utility model discloses a simply attract cutterbar, will attract and cut ingenious combination as an organic whole, the number of times of changing the apparatus in the art has been reduced, cooperation through pump and one-way valve, make the extrusion pump can produce the negative pressure and reach the purpose of attracting, thereby subassembly such as external power cord and external negative pressure pipeline have been saved, the structure of having simplified equipment greatly has also reduced the cost of equipment, and promote the cutter and cut when the extrusion pump produces the negative pressure, operating procedure in the art has been reduced, thereby save time, the pain of sick has been alleviateed.

While the above description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the invention as expressed in the above teachings or as determined by the knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (10)

1. A forceps-type suction cutter, comprising:

the cutting assembly comprises a pipe body, a notch arranged on the side wall of the pipe body and a cutter capable of sliding in the pipe body, and the cutting edge end of the cutter is close to the notch;

the negative pressure assembly is arranged at one end of the pipe body, and the cutter is connected with the negative pressure assembly, so that the cutter is pushed to cut while the negative pressure assembly is pushed;

the pushing assembly is used for pushing the negative pressure assembly to enable the negative pressure assembly to generate negative pressure;

the collecting piece is arranged on the side wall of the pipe body and communicated with the pipe body, and the collecting piece is positioned between the cut and the negative pressure assembly;

wherein moving the cutter causes the blade end of the cutter to slide through the slit.

2. The pincer-type suction cutter as claimed in claim 1, wherein the cutter is provided with a guide member for moving the cutter in contact with the inner wall of the tube body.

3. The pincer-type suction cutter as claimed in claim 2, wherein the guiding member is a guiding ring arranged at one end of the cutter far away from the negative pressure assembly, and the outer periphery of the guiding ring is adapted to the inner periphery of the tube body; or the guide piece is a guide post arranged on the two longitudinal sides of the cutter, and a guide groove matched with the guide post is arranged in the pipe body.

4. The forceps-type suction cutter of claim 1, wherein the end of the cutter adjacent the incision is tubular and fits into the tubular body.

5. The forceps-type suction cutter of any one of claims 1-4, wherein the negative pressure assembly comprises a longitudinally-retractable inflator, a first one-way flap disposed on the inflator, and a second one-way flap disposed opposite the inner lumen of the tube; the first one-way valve is used for exhausting the inflator pump outwards, and the second one-way valve is used for exhausting the inflator pump towards the pipe body.

6. The pincer-type suction cutter according to claim 5, wherein an inner pipe is arranged on one side of the inflator close to the pushing assembly and faces away from the pushing assembly, the inner pipe is communicated with the pipe body, and the inner pipe is used for placing one end of the cutter away from the cut.

7. The pincer-type suction cutter according to claim 5, wherein the pushing assembly comprises a pair of scissors pliers and a support rod positioned on one side of the inflator pump away from the cut, and two points on the same side of the intersection point of the pair of scissors pliers are provided with holding parts; one of the two supporting points on the other side is movably connected to the side wall of the tube body, and the other supporting point is slidably sleeved on the supporting rod.

8. The forceps-type attraction cutter of claim 7, wherein the support rod is provided with a buffer on each side of the fulcrum of the scissors clamp.

9. The pincer-type suction cutter according to claim 8, wherein the buffer member far from the air pump is in threaded connection with the support rod, and the fulcrum of the scissors clamp is in pin connection with the tube body.

10. The pincer-type suction cutter according to claim 1, wherein the collecting piece is annularly arranged on the outer wall of the pipe body between the cut and the negative pressure assembly, and the collecting piece is connected with the pipe body through clamping or threads.

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