CN102048570B - Circular-pipe anastomat - Google Patents

Circular-pipe anastomat Download PDF

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Publication number
CN102048570B
CN102048570B CN200910205054.0A CN200910205054A CN102048570B CN 102048570 B CN102048570 B CN 102048570B CN 200910205054 A CN200910205054 A CN 200910205054A CN 102048570 B CN102048570 B CN 102048570B
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China
Prior art keywords
nail
circular
pipe
pull rod
anvil pull
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Active
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CN200910205054.0A
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Chinese (zh)
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CN102048570A (en
Inventor
陈望东
周婧
单腾
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Suzhou Tianchen International Medical Technology Co Ltd
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Touchstone International Medical Science Co Ltd
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Priority to CN200910205054.0A priority Critical patent/CN102048570B/en
Publication of CN102048570A publication Critical patent/CN102048570A/en
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Publication of CN102048570B publication Critical patent/CN102048570B/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B17/115Staplers for performing anastomosis in a single operation
    • A61B17/1155Circular staplers comprising a plurality of staples

Abstract

The invention provides a circular-pipe anastomat. The anastomat comprises a nail cabin, a nail barrel, a hollow connecting pipe and a sealing sleeve, wherein the nail cabin, the nail barrel and the hollow connecting pipe are fixedly connected with one another; a nail push sheet is movably arranged inside the nail barrel; a nail anvil pull rod moves in a central hole pipe on the nail barrel; and the sealing sleeve is arranged inside the nail barrel, sleeved on the central hole pipe and provided with a group of through holes; and the through holes are in transition fit with the nail push sheet and only allow the nail push sheet to pass. The circular-pipe anastomat has the advantages of high sealing performance, high adaptability to a minimally invasive surgery and simple structure, and is convenient to install.

Description

Circular-pipe anastomat
Technical field
The present invention relates to preferably surgical operation circular-pipe anastomat of a kind of sealing, belong to medical instruments field.
Background technology
The surgical operation circular-pipe anastomat is the medical apparatus and instruments that often uses when the physiological tissues such as esophagus, intestinal are performed the operation seaming and cutting, and the quality of its performance directly affects the operation process, plays very important effect for surgical effect.In the prior art, such as the circular-pipe anastomat that US Patent No. 5205459 discloses, generally by forming with the body of percussion handle with the crimp head of sewing up device, its crimp head is comprised of the nail bin that interfixes successively, nail barrel and hollow connection tube again.Described nail barrel inside is provided with pushing slice of nail movably, an anvil pull rod is arranged at the centre bore in-pipe of being located on the described nail barrel, is used for being connected with nail-anvil assembly.
Present circular-pipe anastomat generally all is used in open surgery, namely needs to open thoracic cavity or abdominal part on a large scale, and this is unfavorable for patient's post-operative recovery very much, has therefore produced a kind of modus operandi of novelty, i.e. Minimally Invasive Surgery.Take the Minimally Invasive Surgery of intestinal tissue seaming and cutting as example, at first need to use special-purpose perforator to open aperture at abdominal part; Then use pneumoperitoneum apparatus toward the intraperitoneal inflation, forming one can be for laparoscopic visualization and the space of carrying out seaming and cutting; Then withdraw from pneumoperitoneum apparatus, can carry out intestinal seaming and cutting Minimally Invasive Surgery after in aperture, inserting circular-pipe anastomat, peritoneoscope and other necessary operating theater instruments.
Because Minimally Invasive Surgery only opens several apertures with it the patient, for patient's recovery very positive effect is arranged.But present circular-pipe anastomat also is not to be well suited for Minimally Invasive Surgery.As shown in Figure 1, because pushing slice of nail 6 can move with respect to nail barrel 1, and anvil pull rod 5 can move with respect to centre bore pipe 4, therefore there is larger space each other in they, and gas can pass this space to enter into the hollow of connection tube 3 inner, escapes into outside the patient body finally by the body of anastomat.Because behind escape of gas, in-vivo tissue returns to again state bonded to each other, therefore cause greatly inconvenience for Minimally Invasive Surgery.Existing way is, opens in addition an aperture with it the patient, ceaselessly inflates in patient body in the process of operation.Such way consumption wealth, consumption power are not ways of dealing with problems for a long time.Therefore, provide a sealing preferably circular-pipe anastomat become technical barrier in the urgent need to address.
The present invention quotes the content that above-mentioned patent is put down in writing as prior art.
Summary of the invention
The object of the invention is to solve above-mentioned technical problem, preferably surgical operation circular-pipe anastomat of a kind of sealing is provided.
Purpose of the present invention is achieved through the following technical solutions:
A kind of circular-pipe anastomat, comprise the nail bin, nail barrel and the hollow connection tube that are fixed together, described nail barrel inside is provided with pushing slice of nail movably, one anvil pull rod is arranged at the centre bore in-pipe of being located on the described nail barrel, described circular-pipe anastomat also comprises a sealing shroud, and described sealing shroud is arranged at nail barrel inside, and is socketed on the described centre bore pipe, described sealing shroud is provided with one group of through hole, and described through hole and pushing slice of nail interference fits also only allow pushing slice of nail to pass through.
Further, described sealing shroud comprises an end face and a bottom surface, and described through hole is through end face and bottom surface, and described bottom surface is connected on the reinforcement surface of described nail barrel, and described end face is connected on the end face of described hollow connection tube.Respectively be provided with a projection in described each through hole.
Again further, described anvil pull rod axially is provided with at least one circumferential slot along it, is provided with a sealing ring in described each circumferential slot, has at least the sealing ring of a part to stretch out in outside the described anvil pull rod.
Further, described anvil pull rod and a connection piece riveted joint are provided with a gasket seal between the end face of described anvil pull rod and connector.
The material of above-mentioned sealing shroud, sealing ring, gasket seal is rubber.
Beneficial effect of the present invention is mainly reflected in: the sealing of circular-pipe anastomat is better, can be applicable to well Minimally Invasive Surgery, and simple in structure, easy for installation.
Description of drawings
Below in conjunction with accompanying drawing technical solution of the present invention is described further:
Fig. 1: the sketch map of the crimp head of the circular-pipe anastomat of prior art, wherein indicated the escape direction of gas.
Fig. 2: the sketch map of the crimp head of circular-pipe anastomat of the present invention.
Fig. 3: the enlarged drawing of A part among Fig. 2.
Fig. 4: the schematic perspective view of sealing shroud of the present invention.
Fig. 5: the cutaway view of sealing shroud of the present invention.
Wherein:
1 nail barrel, 2 nail bins, 3 connection tubes
4 centre bore pipes, 5 anvil pull rod, 6 pushing slice of nail
7 connectors, 8 circular holes, 9 sealing shrouds
10 reinforcements surface, 11 grooves, 12 sealing rings
13 gasket seals, 91 bottom surfaces, 92 end faces
93 centre bores, 94 through holes, 95 projections
The specific embodiment
As shown in Figure 1, existing circular-pipe anastomat comprises nail bin 2, nail barrel 1 and the hollow connection tube 3 that is mutually permanently connected successively.Described nail barrel 1 comprises a circular hole 8 that is used for accommodating cut tissue, and a centre bore that links with described circular hole 8, and this centre bore is formed by the hollow bulb of the centre bore pipe 4 of being located at nail barrel 1 inside.Described nail barrel 1 inside is provided with pushing slice of nail 6 movably, a connection piece 7 pulling anvil pull rod 5 is arranged in described centre bore pipe 4 interior movements.Because existing circular-pipe anastomat poor sealing, therefore after gas enters from circular hole 8, can flow along the direction of arrow among Fig. 1, enter into the hollow inside of connection tube 3 through pushing slice of nail 6 and the space of space, anvil pull rod 5 and the centre bore pipe 4 of nail barrel 1, because the connector 7 and the space between the connection tube 3 that are arranged in the connection tube 3 movably are also very large, so gas escapes into atmosphere after entering into the body (not shown) of circular-pipe anastomat via connection tube 3 again.
Given this, the present invention has disclosed preferably circular-pipe anastomat of a kind of sealing, as shown in Figure 2, described circular-pipe anastomat also comprises a sealing shroud 9, described sealing shroud 9 is arranged at nail barrel 1 inside, and is socketed on the described centre bore pipe 4, and the one side is close on the reinforcement surface 10 of nail barrel.
In conjunction with Fig. 4 and shown in Figure 5, described sealing shroud 9 comprises a bottom surface 91 and an end face 92.Described sealing shroud 9 is provided with a centre bore 93 and one group and is located in through hole 94 around the centre bore 93.Described centre bore 93 and through hole 94 through holes are through end face 92 and bottom surface 91.The effect of described centre bore 93 is that sealing shroud 9 can be socketed on the centre bore pipe 4; The shape of the shape of described through hole 94 and pushing slice of nail 6 is roughly the same, and with these pushing slice of nail 6 interference fits, namely only allow pushing slice of nail 6 by described through hole 94.In this preferred embodiment, respectively be provided with a projection 95 in described each through hole 94, this is that this projection 95 can be embedded in the described groove, has reached so better sealing effectiveness because present pushing slice of nail 6 has a groove (not shown).
As shown in Figure 2, described bottom surface 91 is connected on the reinforcement surface 10 of described nail barrel 1, and described end face 92 is connected on the end face of described hollow connection tube 3.Because nail barrel 1 and connection tube 3 roll extrusion are fixed together, sealing shroud 9 just has been fixed in the nail barrel firmly like this.
In conjunction with Fig. 2 and shown in Figure 3, the anvil pull rod 5 of present embodiment is provided with a circumferential slot 11, is provided with a sealing ring 12 in the described groove, has at least the sealing ring 12 of a part to stretch out in outside the described anvil pull rod 5, and this extension is connected on the inwall of centre bore pipe 4.Like this, sealing ring 12 has just played the effect of sealing anvil pull rod 5 with the space of centre bore pipe 4.Again because sealing ring 12 is that point contacts with centre bore pipe 4, so also can not have influence on the movement of anvil pull rod 5.
In the prior art, be riveted joint between described anvil pull rod 5 and the connector 7, so an end of connector 7 need extend into anvil pull rod 5 inside, but this can form certain space between the two.Given this, present embodiment is provided with a gasket seal 13 between the end face of described anvil pull rod 5 and connector 7, just can play better a sealing effectiveness.
The material of above-mentioned sealing shroud, sealing ring, gasket seal is that rubber is advisable, namely need to be with certain elasticity.
The present invention still has multiple sealing means, and for example: anvil pull rod 5 axially is provided with at least two circumferential slots 11 along it, is provided with a sealing ring 12 in each circumferential slot 11, makes like this better effects if of sealing.All employings are equal to replacement or equivalent transformation and all technical schemes of forming, all drop within the scope of protection of present invention.

Claims (5)

1. circular-pipe anastomat, comprise the nail bin, nail barrel and the hollow connection tube that are fixed together, described nail barrel inside is provided with pushing slice of nail movably, one anvil pull rod is arranged at the centre bore in-pipe of being located on the described nail barrel, it is characterized in that: described circular-pipe anastomat also comprises a sealing shroud, described sealing shroud is arranged at nail barrel inside, and be socketed on the described centre bore pipe, described sealing shroud is provided with one group of through hole, and described through hole and pushing slice of nail interference fits also only allow pushing slice of nail to pass through; Described sealing shroud comprises an end face and a bottom surface, and described through hole is through end face and bottom surface, and described bottom surface is connected on the reinforcement surface of described nail barrel, and described end face is connected on the end face of described hollow connection tube.
2. circular-pipe anastomat according to claim 1 is characterized in that: respectively be provided with a projection in described each through hole.
3. circular-pipe anastomat according to claim 1, it is characterized in that: described anvil pull rod axially is provided with at least one circumferential slot along it, be provided with a sealing ring in described each circumferential slot, have at least the sealing ring of a part to stretch out in outside the described anvil pull rod.
4. circular-pipe anastomat according to claim 3 is characterized in that: described anvil pull rod and a connection piece riveted joint are provided with a gasket seal between the end face of described anvil pull rod and connector.
5. circular-pipe anastomat according to claim 4, it is characterized in that: the material of described sealing shroud, sealing ring, gasket seal is rubber.
CN200910205054.0A 2009-10-27 2009-10-27 Circular-pipe anastomat Active CN102048570B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910205054.0A CN102048570B (en) 2009-10-27 2009-10-27 Circular-pipe anastomat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910205054.0A CN102048570B (en) 2009-10-27 2009-10-27 Circular-pipe anastomat

Publications (2)

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CN102048570A CN102048570A (en) 2011-05-11
CN102048570B true CN102048570B (en) 2013-04-17

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5205459A (en) * 1991-08-23 1993-04-27 Ethicon, Inc. Surgical anastomosis stapling instrument
CN201208273Y (en) * 2008-06-17 2009-03-18 常州市三联星海医疗器械制造有限公司 Disposable tube shaped anastomat sealing device
CN201551358U (en) * 2009-10-27 2010-08-18 苏州天臣国际医疗科技有限公司 circular tube-shaped anastomat

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5205459A (en) * 1991-08-23 1993-04-27 Ethicon, Inc. Surgical anastomosis stapling instrument
CN201208273Y (en) * 2008-06-17 2009-03-18 常州市三联星海医疗器械制造有限公司 Disposable tube shaped anastomat sealing device
CN201551358U (en) * 2009-10-27 2010-08-18 苏州天臣国际医疗科技有限公司 circular tube-shaped anastomat

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Address after: 215021 No. 278 Dongping Street, Suzhou Industrial Park, Jiangsu Province

Patentee after: Tianchen International Medical Technology Co., Ltd

Address before: 215021, 1355 international science and Technology Park, Jinji Lake Avenue, Suzhou Industrial Park, Jiangsu, 3 21A

Patentee before: TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd.

CP03 Change of name, title or address