CN105395233A

CN105395233A - Vessel forceps

Info

Publication number: CN105395233A
Application number: CN201510940204.8A
Authority: CN
Inventors: 蔡建强
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-12-17
Filing date: 2015-12-17
Publication date: 2016-03-16
Anticipated expiration: 2035-12-17
Also published as: CN105395233B

Abstract

The invention discloses vessel forceps. The vessel forceps comprise a first forceps body and a second forceps body which are hinged together, wherein the first forceps body comprises a first forceps mouth and a first forceps arm, the second forceps body comprises a second forceps mouth and a second forceps arm, the first forceps arm and the second forceps arm can be closed or opened by taking the hinging part as the moving center, and the first forceps mouth and the second forceps mouth are closed or opened under the driving of the first forceps arm and the second forceps arm; a plurality of first bulges are arranged on the closed face of the first forceps mouth, when the first forceps mouth and the second forceps mouth are closed, the plurality of first bulges contact the closed face of the second forceps mouth, when the structure is used for clamping the liver parenchymal tissue to be broken, the plurality of bulges can extrude blood vessels or biliary ducts distributed in the liver tissue to be positioned in the gaps among the bulges, so that the risk that a sharp multi-rack structure easily damages the biliary ducts or the blood vessels is reduced, and a doctor can carry out accurate clamping and dividing operations on the liver parenchyma.

Description

A kind of vascular forceps

Technical field

The present invention relates to technical field of medical instruments, particularly relate to a kind of vascular forceps.

Background technology

Along with the development of surgery of liver, various liver technology of cutting continues to bring out, as referred to, the meticulous clamp method of pinching method, vascular forceps is cut the advanced operating theater instruments such as liver technology and ultrasonic suction knife (CUSA), water cutter, Tissuelink electric knife, harmonic wave cutter and is cut liver technology and all progressively apply in clinical, its object be fast from disconnected liver parenchyma, reduce amount of bleeding, close bile duct to avoid bile leakage after operation.In all multi-methods, CUSA, to refer to that liver method cut by pinching method and meticulous clamp be the main method from disconnected liver adopted at present, but CUSA is limited to first and then expensive equipment, cannot in economic backward area extensive use; Refer to that pinching method liver cutting operation is more coarse again, run counter to " accurate hepatectomy " theory; According to data, vascular forceps meticulous clamp method is still clinically conventional cuts liver technology to root at present, it is advantageous that without the need to special installation, simple to operate, cost is low and still can reach meticulousr operant level.But the tooth bar that two jaw closing faces of the vascular forceps that clamp method is conventional at present (as Kelly pincers) distribute is more sharp-pointed, being caught broken hepatic parenchymal while, easy damage profile bile duct wherein or blood vessel are (such as, branches of hepatic vein tube wall is thinner, very easily damaged, hemorrhage), have impact on surgical effect, therefore the structure how improving vascular forceps, to avoid damaging bile duct or blood vessel in art, is the technical issues that need to address to reduce operation risk.

Summary of the invention

The object of this invention is to provide a kind of vascular forceps, not only can be caught broken liver parenchyma easily and from disconnected, also not easily damage profile blood vessel wherein and bile duct, while reaching better surgical effect, reduce the risk of operation.

Technical solution problem of the present invention adopts following technical scheme: a kind of vascular forceps, comprises the first caliper and the second caliper, and described first caliper and described second caliper are hinged; Described first caliper comprises the first jaw and the first tong arm, described second caliper comprises the second jaw and the second tong arm, described first tong arm and described second tong arm are that activity centre can close or open with articulated section, and described first jaw and described second jaw can be mutually closed or open under the drive of described first tong arm and described second tong arm; The closing face of described first jaw is provided with multiple first projection, and when described first jaw and described second jaw close, multiple described first projection contacts with the closing face of described second jaw.

Preferably, the closing face of described second jaw is provided with multiple second projection, when described first jaw and described second jaw close, multiple described first projection is engaged mutually with multiple described second projection.

Preferably, multiple described first projection is arranged at the far-end of the closing face of described first jaw; And the near-end of the closing face of described first jaw is provided with many first tooth bars; The near-end of the closing face of described second jaw is provided with the second tooth bar; Many described first tooth bar is engaged mutually with many described second tooth bars.

Preferably, multiple described first projection occupies 1/4 to 1/2 of the closing face of described first jaw, and multiple described second projection occupies 1/4 to 1/2 of the closing face of described second jaw.

Preferably, multiple described first projection occupies 1/3 of the closing face of described first jaw, and multiple described second projection occupies 1/3 of the closing face of described second jaw.

Preferably, multiple described first projection becomes dot matrix to distribute.

Preferably, multiple described first projection and multiple described second projection are hemispherical or semielliptical shape or other surfaces are the structure of curved surface.

Preferably, the distance between adjacent two described first projections be 6 μm to 10mm.

Preferably, the distance between adjacent two described first projections is 20 μm to 38 μm.

Preferably, the distance between adjacent two described first projections is 0.5mm to 8mm.

Preferably, the distance between adjacent two described first projections is 3mm to 6mm.

Preferably, the distance between adjacent two described first projections is 5mm.

Preferably, the top of projection equals between adjacent two projections to the vertical height of the closing face of its place jaw spacing.

Preferably, the top of projection equals the half of the spacing between adjacent two projections to the vertical height of the closing face of its place jaw.

The present invention has following beneficial effect: the first jaw arranges multiple first projection, when jaw closes, multiple first projection contacts with the closing face of the second jaw, being caught broken hepatic parenchymal while, the blood vessel be distributed in liver parenchyma tissue or bile duct can be expressed in the clearance space between projection by projection, avoid the situation of the sharp many rack structures easy damaged bile duct of protocone or blood vessel, can to be caught broken quickly and accurately liver parenchyma easily and from disconnected, reduce amount of bleeding and incidence of complications, not easily there is serious hepatic injury, reduce the risk of operation, meet the theory of modern precisely hepatectomy.

Accompanying drawing explanation

Fig. 1 is the structural representation of vascular forceps;

Fig. 2 is the partial structurtes schematic diagram of the top view of the vascular forceps being provided with the first projection and the second projection;

Fig. 3 is the partial structurtes schematic diagram of the top view of the vascular forceps being provided with the first projection, the first tooth bar, the second projection and the second tooth bar;

Fig. 4 is the structural representation of the first jaw in Fig. 3 situation;

Fig. 5 is the side-looking enlarged drawing of the first jaw in a kind of situation;

Fig. 6 is the side-looking enlarged drawing of the first jaw in another kind of situation;

Fig. 7 is the side-looking enlarged drawing of the first jaw in another situation;

The partial structurtes schematic diagram of Fig. 8 to be the connecting portion of the closing face of the first projection and the first jaw be top view of the vascular forceps of rounding off;

Fig. 9 is the enlarged drawing at A place in Fig. 8.

In figure, labelling is illustrated as: 1-first jaw; 2-first tong arm; 3-second jaw; 4-second tong arm; 5-articulated section; 6-first projection; 7-second projection; 8-first tooth bar; 9-second tooth bar.

Detailed description of the invention

Below in conjunction with embodiment and accompanying drawing, technical scheme of the present invention is further elaborated.

See Fig. 1, present embodiments provide a kind of vascular forceps, comprise the first caliper and the second caliper, the first caliper and the second caliper are hinged; Described first caliper comprises the first jaw 1 and the first tong arm 2, described second caliper comprises the second jaw 3 and the second tong arm 4, described first tong arm 2 and described second tong arm 4 are with articulated section 5 for activity centre can close or open, and described first jaw 1 and described second jaw 3 can be mutually closed or open under described first tong arm 2 and described second tong arm 4 drive; The closing face of described first jaw 1 is provided with multiple first projection 6, and when described first jaw 1 and described second jaw 3 close, multiple described first projection 6 contacts with the closing face of described second jaw 3.

When needs are caught broken liver parenchyma tissue, from time disconnected, first tong arm 2 and the second tong arm 4 are closed for activity centre with articulated section 5, drive the first jaw 1 and the second jaw 3 closed mutually with this, multiple first projections 6 on first jaw 1 contact with the closing face of the second jaw 3, multiple first projection 6 matches to be caught broken the liver parenchyma tissue be clamped in therebetween with the closing face of the second jaw 3 thus, from disconnected, when running into the streak pipeline in liver parenchyma (as blood vessel or bile duct), multiple first projection can by the space between these pipe extrusion to projection, with original many transversely arranged easy pinch ofves of sharp-pointed rack structure be arranged on closing face, poke or tear blood vessel or bile duct is compared, blood vessel or bile duct can be expressed in the space between them by the structure of multiple projection, like this when being caught broken and from disconnected liver parenchyma, not easily injured blood vessel or gallbladder pipe, greatly reduce the operation risk of amount of bleeding and gallbladder leakage.

See Fig. 2, the present embodiment preferably, described second jaw 3 is also provided with multiple second projection 7 on its closing face, and multiple described second projection 7 is corresponding with multiple described first projection 6 and arrange, when described first jaw 1 and described second jaw 3 close, multiple described first projection 6 is engaged mutually with multiple described second projection 7, clearance space between such adjacent protrusions is larger, the projection of corresponding occlusion is also more convenient for blood vessel or bile duct to be expressed in the space of projection, thereby further reduces the risk of injured blood vessel or bile duct.

See Fig. 3 to Fig. 7, preferably, multiple described first projection 6 is arranged at the far-end (far-end, refers to the one end away from executing patient, lower same) of the closing face of described first jaw 1 to the present embodiment, and the near-end of the closing face of described first jaw 1 (near-end is for said distal ends, namely near the one end of executing patient, lower same) is provided with many first tooth bars 8, the far-end of the closing face of described second jaw 3 is provided with multiple second projection 7 and many second tooth bars 9 in the position corresponding with the closing face of described first jaw 1 respectively with near-end, described first projection 6 and described second projection 7 can be engaged mutually when jaw 1 and jaw 3 close, described first tooth bar 8 and described second tooth bar 9 are also engaged when jaw 1 and jaw 3 close simultaneously mutually, making to execute patient can according to the different situation of operation hepatic tissue, or organize the difference of soft durometer, or need the difference of the dynamics being caught broken hepatic tissue, and optionally use the mutual occlusion between projection or use the mutual occlusion between tooth bar, make the use of vascular forceps more flexible.Further preferably, the tip of many described first tooth bars 8 and many described second tooth bars 9 is round and smooth structure (namely the upper sideline of jaw side section is that wave is linear), relative to original pointed structures, this kind of structure can be avoided when being caught broken hepatic tissue being damaged to blood vessel and bile duct further.

Preferably, multiple described first projection 6 occupies 1/4 to 1/2 of the closing face of described first jaw 1 to the present embodiment, and multiple described second projection 7 occupies 1/4 to 1/2 of the closing face of described second jaw 3 too.

The present embodiment further preferably, multiple described first projection 6 occupy the closing face of described first jaw 1 1/3 (as, be distributed on the longitudinal length of about 1 cm of closing face far-end), then many described first tooth bars 8 occupy the closing face of the first jaw 1 all the other 2/3; Now multiple described second projection 7 occupies 1/3 of the closing face of described second jaw 3, many described second tooth bars 9 occupy the closing face of the second jaw 3 all the other 2/3; To reach the mutual occlusion of the first projection 6 and the second projection 7 correspondence, the layout of the mutual occlusion of the first tooth bar 8 and the second tooth bar 9 correspondence.Make to execute patient like this and selectively use according to practical situation the operation part that vascular forceps is different, make operation more flexible.

See Fig. 4, preferably, multiple first projection 6 one-tenth dot matrixs distribute the present embodiment.This set makes to be caught broken tissue or from time disconnected, can many distribution blood vessels in the tissue or bile duct be expressed in multiple projection gap simultaneously, be unlikely while its medium vessels or the densely distributed hepatic segments of bile duct are caught broken and cause bleeding because tractive excessively damages the blood vessel (as hepatic vein) of wherein dense distribution or bile duct or gallbladder leaks, also can make the stressed of tissue evenly, conveniently execute hand-held dynamics when patient operates control.Further, multiple second projection 7 is that the dot matrix corresponding with multiple first projection 6 distributes.

With further reference to Fig. 5 to Fig. 7, preferably, described first projection 6 and described second projection 7 are hemispherical to the present embodiment or semielliptical shape or other surfaces are the structure of smooth curved surface.Projection is hemispherical or semielliptical shape or other surfaces can disperse the chucking power to blood vessel and bile duct greatly for the structure of curved surface, can avoid simultaneously similar taper sharp projection to tissue carry out undue tractive cause tissue and vascular forceps contact surface very few, the bad assurance of dynamics, the problem of easy injured blood vessel or bile duct, the structure that therefore hemispherical or semielliptical shape or other surfaces are curved surface is preferably structure.

Further, the spacing limited between adjacent two the first projections 6 be 6 μm to 10mm, certainly, arrange, so the spacing between adjacent two the second projections 7 is corresponding with the spacing between adjacent two the first projections 6 because multiple first projection 6 is mutually corresponding with multiple second projection 7.

Further, the spacing between adjacent two the first projections 6 is 20 μm to 38 μm to the present embodiment.When running into the densely distributed hepatic segments of thin vessels (as venule, small artery); because the diameter range of thin vessels is between 20 μm to 38 μm; therefore the vascular forceps with this bump pitch structure can be selected; be convenient to projection gap and hold the thin vessels be extruded to wherein; during operation, thin vessels can be taken advantage of a situation and not easily to be damaged by vascular forceps by the space got between two the first projections 6 and/or two the second projections 7, effectively protects blood vessel.

Preferably, the spacing between adjacent two described first projections 6 is 37 μm to above-described embodiment.When operating for liver, utilizing the spacing between two the first projections 6 to be the vascular forceps of 37 μm, more meeting the average diameter size of most of thin vessels in liver.

Further, the spacing between adjacent two described first projections 6 is 0.5mm to 8mm to the present embodiment.When hepatic segments to be held has bile duct or portal vein; the spacing between two the first projections 6 can be selected to be the vascular forceps of 0.5mm to 8mm; the bile duct or portal vein being convenient between projection, have enough gaps fully to hold and being extruded to wherein; while being caught broken hepatic tissue, bile duct or portal vein can be taken advantage of a situation and not damaged by vascular forceps by the space got between two the first projections 6 and/or two the second projections 7, effectively protect bile duct or portal vein.

Above-described embodiment preferably, spacing between adjacent two described first projections 6 is 3mm to 6mm, this size range is compared with the diameter dimension close to the most of portal vein in liver or bile duct, when performing the operation, the vascular forceps with different spacing setting can be selected for the hepatic segments with different size blood vessel or bile duct distribution.Further preferably, the spacing between adjacent two described first projections 6 is 5mm to above-described embodiment, such as, when for operation on liver, selects the spacing between two the first projections 6 to be the vascular forceps of 5mm.

Further, the top of the first projection 6 and/or the second projection 7 equals the spacing between adjacent two the first projections 6 and/or the second projection 7 to the vertical height of the closing face of its place jaw, when the closing face of only one of two jaws has multiple raised structures, projection is set to such height.

Further, the top of the first projection 6 and/or the second projection 7 equals the half of the spacing between adjacent two the first projections 6 and/or the second projection 7 to the vertical height of the closing face of its place jaw, when the closing face of two jaws all has multiple raised structures, projection is set to such height.

It should be noted that, execute the position of the liver parenchyma tissue that patient can be caught broken according to blood vessel diameter size or needs, select to have the vascular forceps of different bump pitch, rising height, projection distribution or shape for lugs, with the needs of satisfied different operative site.Certainly, the density of the spacing between adjacent projection, height and entirety, also can not be subject to the restriction of above-mentioned size, also can arrange for the different situations at local operation position.In addition, execute patient and can also select to have the vascular forceps of different decreased food according to hepatic parenchymal situation or the depth executing art position, as for the vascular forceps using 14-26cm long handle when liver parenchyma thicker position or clamping deep tissue, use 9.5-12.5cm short handle and the vascular forceps of the tiny exquisiteness of head for when liver parenchyma thin location or clamping shallow tissue.

See Fig. 8 to Fig. 9, preferably, described first projection 6 is the curved surface of rounding off with the connecting portion of the closing face of described first jaw 1, and described second projection 7 and the connecting portion of the closing face of described second jaw 3 are also the curved surface of rounding off.The damage that can further prevent when blood vessel and bile duct clamping is set like this.

Preferably, the lateral part of the closing face of the first jaw 1 and the closing face of the second jaw 3 is round and smooth structure, and the far-end of the first jaw 1 and the far-end outer wall of the second jaw 3 are the cambered surface of rounding off.It is more smooth and easy when vascular forceps being inserted liver parenchyma that such setting makes to execute patient, reduces the damage to tissue simultaneously.

See Fig. 5, further, the trace direction of many described first tooth bars 8 is mutually vertical with the length direction of described first caliper.See Fig. 6, again further, the trace direction of many described first tooth bars 8 is prolong the length direction of the first caliper.See Fig. 7, more further, many described first tooth bars 8 are wave the linear alignment.Execute the vascular forceps that patient can select to have different tooth trace arrangement mode or shape as required.

The sequencing of above embodiment, only for ease of describing, does not represent the quality of embodiment.

Last it is noted that above embodiment is only for illustration of technical scheme of the present invention, but not be limited.Although with reference to previous embodiment to invention has been detailed description, but those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or equivalent replacement is carried out to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims

1. a vascular forceps, is characterized in that, comprises the first caliper and the second caliper, and described first caliper and described second caliper are hinged; Described first caliper comprises the first jaw and the first tong arm, described second caliper comprises the second jaw and the second tong arm, described first tong arm and described second tong arm are that activity centre can close or open with articulated section, and described first jaw and described second jaw can be mutually closed or open under the drive of described first tong arm and described second tong arm;

The closing face of described first jaw is provided with multiple first projection, and when described first jaw and described second jaw close, multiple described first projection contacts with the closing face of described second jaw.

2. vascular forceps according to claim 1, is characterized in that, the closing face of described second jaw is provided with multiple second projection, and when described first jaw and described second jaw close, multiple described first projection is engaged mutually with multiple described second projection.

3. vascular forceps according to claim 2, is characterized in that, multiple described first projections are arranged at the far-end of the closing face of described first jaw; And the near-end of the closing face of described first jaw is provided with many first tooth bars;

The near-end of the closing face of described second jaw is provided with many second tooth bars; Many described first tooth bar is engaged mutually with many described second tooth bars.

4. vascular forceps according to claim 3, is characterized in that, multiple described first projection occupies 1/4 to 1/2 of the closing face of described first jaw, and multiple described second projection occupies 1/4 to 1/2 of the closing face of described second jaw.

5. vascular forceps according to claim 4, is characterized in that, multiple described first projection occupies 1/3 of the closing face of described first jaw, and multiple described second projection occupies 1/3 of the closing face of described second jaw.

6. vascular forceps as claimed in any of claims 1 to 5, is characterized in that, multiple described first projection becomes dot matrix to distribute.

7. vascular forceps as claimed in any of claims 2 to 5, is characterized in that, multiple described first projection and multiple described second projection are hemispherical or semielliptical shape or other surfaces are the structure of curved surface.

8. vascular forceps according to claim 7, is characterized in that, the distance between adjacent two described first projections be 6 μm to 10mm.

9. vascular forceps according to claim 8, is characterized in that, the distance between adjacent two described first projections is 20 μm to 38 μm.

10. vascular forceps according to claim 8, is characterized in that, the distance between adjacent two described first projections is 0.5mm to 8mm.

11. vascular forcepss according to claim 10, is characterized in that, the distance between adjacent two described first projections is 3mm to 6mm.

12. vascular forcepss according to claim 11, is characterized in that, the distance between adjacent two described first projections is 5mm.

Vascular forceps according to any one of 13. according to Claim 8 to 12, is characterized in that, the top of projection equals the spacing between adjacent two projections to the vertical height of the closing face of its place jaw.

Vascular forceps according to any one of 14. according to Claim 8 to 12, is characterized in that, the top of projection equals the half of the spacing between adjacent two projections to the vertical height of the closing face of its place jaw.