CN109820577A - A kind of combined puncturing device - Google Patents

The invention proposes a kind of combined puncturing devices, it include: inner sleeve tube assembly and housing tube assembly, wherein, inner sleeve tube assembly includes intermediate connector 4, the middle part of the intermediate connector 4 offers A through-hole 5, seal assembly 6 is provided at A through-hole 5, the lower part of intermediate connector 4, the two sides of A through-hole 5 are correspondingly arranged on buckle protrusion 7 and positioning column 8, the lower section of A through-hole 5 is correspondingly arranged on A hollow sleeve 9, and the A hollow sleeve 9 includes the local interface 10 and remote interface 11 connecting with the lower end of A through-hole 5.It further include puncturing head 3, the puncturing head 3 is removably connect with remote interface 11.The housing tube assembly is removably sheathed on outside the A hollow sleeve 9.

A kind of combined puncturing device

Technical field

The present invention relates to Minimally Invasive Surgery instrument more particularly to a kind of puncture outfit structures.

Background technique

Puncture outfit is in a kind of Minimally Invasive Surgery, for establishing the surgical instrument for entering the artificial channel of body cavity.Usually by covering Tube assembly and puncture needle composition.Its clinical general usage mode are as follows: first cut osculum on patient skin, then puncture needle is passed through Tube assembly is worn, however penetrates stomach wall through skin opening together and enters body cavity.It is removed, stays once into puncture needle after body cavity Channel of the tube assembly of trapping as instrument disengaging body cavity.

In hard tube endoscope-assistant surgery, pneumoperitoneum apparatus is generallyd use to the lasting perfusion gas of abdominal cavity of patients (such as carbon dioxide gas Body) and stable air pressure (about 13~15mmHg) is maintained, to obtain enough surgical procedure spaces.Sheath assembly is usually by covering Pipe, shell seal film (also known as instrument seal) and zero sealing (also known as automatic-sealed) composition.Described sleeve pipe penetrated outside body cavity to Channel in body cavity, as instrument disengaging body cavity.Casing, zero sealing and sealing film are connected into a sealing system by the shell System.Zero sealing is generally not provided the sealing for insertion instrument, and is automatically closed when instrument is removed and forms sealing.Institute It states sealing film and banding instrument and forms sealing in instrument insertion.

In abdominocentesis operation, it usually needs establish 3~4 puncture channels in patient's stomach wall, i.e., 2 small internal diameter casing group Part (usual 5mm) and 2 large diameter sheath assemblies (usual 10mm).Usually enter patient's body via small internal diameter sheath assembly Instrument is only completed auxiliary operation；One of large diameter sheath assembly is as endoscope path way；And another large diameter casing group The main thoroughfare that part is performed the operation as doctor.During performing the operation herein, the time of the main thoroughfare about 80% applies 5mm device Tool；About 20% time applies other major diameter instruments；And 5mm instrument and major diameter instrument need frequent switching in operation.Using Often it is the critical stage (such as vessel sealing and tissue suture) in operation when major diameter instrument, switches convenience and operation Comfort is more important.Also need to establish the puncture channel of 15mm in a kind of typical gynecological surgery convenient for taking out the son cut down Palace tissue.

Since sheath assembly is the channel for establishing surgical procedure and body cavity, in entire surgical procedure, Optimal case is to maintain the sustainability and stability of sheath assembly.However in the course of surgery, it according to surgery situation, needs not Stop replacing medical instrument when entering body cavity, the working end that medical instrument protrudes into human body can repeatedly make the seal assembly of sheath assembly At the damage of unrepairable.Secondly, needing repeatedly to remove the tissue or foreign matter of patient's body, the volume of these tissues or foreign matter is logical Chang Douhui is trapped at the seal assembly of sheath assembly, needs to pull it casing in such a way that violence stretches, thus equally The damage of unrepairable can be caused to the seal assembly of sheath assembly.

Therefore have the following problems at this stage: 1, puncture needle belongs to disposable medical article, is only used for puncturing skin group It knits, is dropped after a single use, which results in the increases of operation cost.2, sheath assembly is run through using puncture needle, percutaneously Skin opening penetrates stomach wall and enters body cavity, and when being removed into puncture needle after body cavity, puncture needle is be easy to cause to casing group The sealing film of part and zero sealing damage, reduce so as to cause the important sealing performance of puncture outfit, bring operation risk.3, work as needs When taking out the tissue cut down from sleeve channel, since the form of tissue has differences, need to use instead different operations Instrument takes out, and uses instrument instead each time or takes out tissue, can all there is the possibility for causing damage to the seal assembly of casing；Together When, due to the presence of seal assembly, also it is unfavorable for the taking-up of tissue.4, the tissue cut off when human body inscribe is larger, needs Above-mentioned tissue is pulled out in vitro by puncture outfit outer tube, since strength is larger, easily causes the movement of puncture outfit；At certain In a little situations, need to retighten puncture outfit, this brings unnecessary trouble to operation, and bigger pain can be also brought to patient It is bitter.

Summary of the invention

In order to solve the problems, such as said one or multiple, the invention proposes a kind of combined puncturing devices, comprising: inner sleeve group Part and housing tube assembly, wherein inner sleeve tube assembly includes intermediate connector 4, and it is logical that the middle part of the intermediate connector 4 offers A Hole 5, seal assembly 6 is provided at A through-hole 5, and the lower part of intermediate connector 4, the two sides of A through-hole 5 are correspondingly arranged on buckle protrusion 7 And positioning column 8, the lower section of A through-hole 5 are correspondingly arranged on A hollow sleeve 9, the A hollow sleeve 9 includes the lower end with A through-hole 5 The local interface 10 and remote interface 11 of connection.It further include puncturing head 3, the puncturing head 3 removably connects with remote interface 11 It connects.The housing tube assembly is removably sheathed on outside the A hollow sleeve 9.

The lower end of the A through-hole 5 is to be fixedly connected or be detachably connected with the local interface 10.It is above-mentioned to be detachably connected Can be there are many connection type, such as threaded connection, spline connection, key connection, pin connection etc..

The puncturing head 3 is removably connect with remote interface 11, dismountable connection type can choose for Threaded connection, spline connection, key connection or pin connection or other connection types, are preferably threadedly coupled.

Housing tube assembly, including upper surface 12, shell 13 and the B hollow sleeve 14 for being attached thereto and extending to distal end；Institute Stating has handle hole 122 on upper surface 12, respective operations hole 122 is provided with seal assembly 19 in the shell 13, and the B is hollow The connection corresponding with the handle hole 122 of casing 14；It is provided on the upper surface 12 and the raised 7 corresponding grooves of the buckle 15, and columnar hole 16 corresponding with the positioning column 8, the side of shell 13 is provided with air valve part 18, setting in shell 13 Flexible component is used to be fixed when being socketed the connector 4 and outer tube component.

The housing tube assembly is removably sheathed on outside the A hollow sleeve 9.It is described to be arranged that connection there are many solid Determine mode, such as screw thread, magnet magnetic, buckle and card slot, rotational positioning block etc..

In a kind of implementation of the invention, wherein be provided with one or more on the lower outer circumferential of remote interface 11 Elastic bulge loop 111.

In another implementation of the invention, wherein be provided with multiple elasticity on the lower outer circumferential of remote interface 11 Protrusion 112.

The C hollow sleeve 121 of the puncturing head 3 including upper end and the pricker for being attached thereto and extending to distal end.

In another implementation of the invention, wherein the inner wall of the C hollow sleeve 121 is equipped with annular recess 123, The annular recess 123 is socketed with the elastic bulge loop 111 or elastic bumps 112.

In another implementation of the invention, the periphery of the C hollow sleeve 121 is equipped with multiple C through-holes 124, the C Through-hole 124 and the elastic bumps 112 are socketed.

In another implementation of the invention, wherein be provided with annular recess on the lower part inner periphery of remote interface 11 125(is not shown).

The outer wall of the C hollow sleeve 121 be equipped with annular resilient bulge loop 111(it is not shown) or elastic bumps 112(do not scheme Show).The annular resilient bulge loop 111 or elastic bumps 112 and the annular recess 125 are socketed.

In another implementation of the invention, wherein the periphery of remote interface 11 is equipped with multiple through-hole 126(and does not scheme Show), the elastic bumps 112 are socketed with the through-hole 126.

Using technical solution of the present invention, it on the one hand can simplify the process for using of puncture outfit, accelerate procedure；It is another Aspect can be omitted this component of conventional puncture needle, save cost；The third aspect can protect the seal assembly of casing, simultaneously Be conducive to puncture outfit and be kept fixed state in human body, and be convenient for the taking-up of tissue, significantly improves surgical procedure just Benefit and procedure efficiency.

Detailed description of the invention

In order to more fully understand essence of the invention, it is described in detail below in conjunction with attached drawing, in which:

Fig. 1 is the stereoscopic schematic diagram of combined puncturing device of the present invention；

Fig. 2 is the stereoscopic schematic diagram of housing tube assembly of the present invention；

Fig. 3 is the combination schematic diagram of puncturing head of the present invention Yu hollow sleeve one embodiment；

Fig. 4 is the combination schematic diagram of puncturing head of the present invention Yu another embodiment of hollow sleeve；

Fig. 5 is puncture needle and sheath assembly schematic diagram in the prior art.

In all views, identical label indicates equivalent part or component.

Specific embodiment

The following discloses embodiment of the present invention, it should be understood, however, that disclosed embodiment is only of the invention Example, it is intended to be used to explain the present invention, and be not considered as limiting the invention, the present invention can be real by different modes It is existing.Therefore, this disclosure is not to be construed to be restrictive, but only as the basis of claim and conduct How introduction those skilled in the art use basis of the invention.Below with reference to specific embodiment to each technology of the invention Scheme is described in detail.

Those skilled in the art is to be understood that puncture outfit generally comprises sheath assembly and puncture needle, sheath assembly Generally include instrument seal, zero sealing and hollow sleeve.Fig. 5 shows the puncture needle and sheath assembly of the prior art.It is described to wear Pricker includes puncturing rod piece 1, and the upper end for puncturing rod piece 1 has end cap 2, and the other end for puncturing rod piece 1 has puncturing head.It is logical It crosses and Puncture needle sleeve is located in casing 22, penetrate stomach wall through skin opening together, building enters the channel of body cavity.Described sleeve pipe Component includes casing 22 and seal cap 21.

The structure and its application method of combined puncturing device of the present invention are described below with reference to attached drawing 1-4.

Fig. 1-2 depicts the combined puncturing device of one embodiment of the invention.Including inner sleeve tube assembly and housing tube assembly.

Wherein, inner sleeve tube assembly, including intermediate connector 4, the middle part of the intermediate connector 4 offer A through-hole 5, and A is logical Be provided with seal assembly 6 at hole 5, the lower end surface of intermediate connector 4, the two sides of A through-hole 5 be correspondingly arranged on buckle protrusion 7 and Positioning column 8, the lower section of A through-hole 5 are correspondingly arranged on A hollow sleeve 9, and the A hollow sleeve 9 includes removable with the lower end of A through-hole 5 Unload the local interface 10 and remote interface 11 of connection.

The A hollow sleeve 9 includes the local interface 10 and remote interface 11 connecting with the lower end of A through-hole 5, it is preferable that A The local interface 10 of hollow sleeve 9 is to be fixedly connected or be detachably connected with the lower end surface of A through-hole 5.

Attached drawing 3-4 depicts the combination schematic diagram of puncturing head and hollow sleeve of the invention, wherein the left figure in Fig. 4 is The top view of remote interface 11.

Wherein, it the C hollow sleeve 121 of puncturing head 3 including upper end and is attached thereto and to the pricker that distal end extends, it is described Puncturing head 3 is removably connect with remote interface 11.

Preferably, one or more elastic bulge loops 111 or multiple are provided on the lower outer circumferential of the remote interface 11 Elastic bumps 112.

Preferably, the inner wall of the C hollow sleeve 121 is equipped with annular recess 123, the annular recess 123 and the bullet Property bulge loop 111 or elastic bumps 112 be socketed.Preferably, the peripheral wall of the C hollow sleeve 121 is equipped with multiple C through-holes 124, institute It states C through-hole 124 and the elastic bumps 112 is socketed.By the application to the elastic bulge loop 111 or elastic bumps 112 between Direction force between horizontal axis (horizontal plane) and the longitudinal axis (vertical plane) makes puncturing head 3 and remote interface 11 form relative rotary motion, To which puncturing head 3 be disassembled from the remote interface 11 of A hollow sleeve 9.

As is known in the art, above-mentioned be detachably connected (can not also scheme there are many matching connection type Show).For instance, it is preferred that it is not shown to be provided with annular recess 125(on the lower part inner periphery of the remote interface 11) or it is described It is not shown that the lower circumference of remote interface 11 is equipped with multiple through-hole 126().

The outer wall of the C hollow sleeve 121 is equipped with annular resilient bulge loop 111 or elastic bumps 112, and the annular resilient is convex Ring 111 or elastic bumps 112 and the annular recess 125 are socketed；Or the elastic bumps 112 are socketed with the through-hole 126.

Only exemplary description above, above-mentioned be detachably connected can be there are many connection type, such as is threadedly coupled, spline Connection, key connection, pin connection etc..Other connection types also can be used in those skilled in the art, realize that the removable of the two is removed stage makeup and costume Match.

It further include housing tube assembly, including upper surface 12, shell 13 and the B hollow sleeve for being attached thereto and extending to distal end 14, there is handle hole 122, respective operations hole 122 is provided with seal assembly 19 in the shell 13, described on the upper surface 12 The connection corresponding with the handle hole 122 of hollow sleeve 14；It is provided on the upper surface 12 corresponding with the buckle protrusion 7 Groove 15, and columnar hole 16 corresponding with the positioning column 8, the side of shell 13 are provided with air valve part 18, in shell 13 It is fixed when being provided with elastic parts for the connector 4 and the socket of outer tube component.

Preferably, the elastic parts includes slide block 17 and spring 20, by circumferentially pushing slide block along shell 17 cooperate with spring 20, realize that the matching is fixed.

Preferably, the elastic parts includes pressing plate (not shown) and spring 20, promotion and bullet by pressing plate The cooperation of spring 20 realizes that the matching is fixed.The pressing plate is the alternative of slide block.

The cooperation of foregoing buckle and card slot is the quick locking structure that singlehanded can quickly split.When this is mainly for operation Facilitate and is punctured, replaces tissue or foreign matter that different casings takes out patient's body.There are many fast lock connections between the two Implementation.Such as the lock that automatically resets disclosed in CN207755311U, such as the blocks rotation system that US8029475 is disclosed System；Such as Chinese invention patent 201410335388.0 disclose can Bidirectional unlocking blocks rotation component；Such as Chinese invention 201310202250.9 the double back font of middle disclosure latches scheme；Such as disclosed in Chinese invention patent 201410072509.7 The lock moved horizontally inserts body scheme etc..In addition to the structure that the present embodiment is shown, also can be used threaded connection, rotary buckle or its His quick locking structure.

The seal assembly 6 is instrument seal, and the instrument seal 6 is bound round when being inserted into external device in described sleeve pipe component Tight instrument simultaneously forms sealing；The seal assembly 19 is zero sealing, and zero sealing 19 is generally not provided for insertion instrument Sealing, and be automatically closed when instrument is removed and form sealing.To save length, connector 4, instrument seal 6, zero sealing are omitted 19 structure and its details for being connected and fixed mode describe and statement.Those skilled in the art, which is to be understood that, have been disclosed In the prior art, there are many instrument seal and the implementations of zero sealing, such as in U.S. patent Nos US8029475 The fFour piece type instrument seal component of disclosure, such as the fold-type instrument seal component disclosed in US7789861, such as The instrument seal component comprising woven cloth disclosed in US6482181, such as the fFour piece type zero that US5443452 is disclosed seal, example Sealing of duck-beak type zero as disclosed in US8034032 etc..To other disclosed instrument seals, zero sealing and its shell are slightly Adaptation can also be used for substituting instrument seal of the present invention, zero sealing and connector shell etc..

The mode of operation of combined puncturing device of the present invention is as follows:

Puncturing head 3 will be installed at the remote interface 11 of inner sleeve tube assembly, used as puncture needle, be set in outer tube later In component, the end face that the two is in contact passes through the buckle protrusion 7 and positioning column 8 of intermediate connector 4 and its corresponding outer tube Groove 15 and the cooperation of columnar hole 16 on component are fixed.Then entire stomach wall is penetrated through skin opening together enter body cavity.One Denier enters body cavity, and inner sleeve tube assembly is removed, and leaves channel of the housing tube assembly as instrument disengaging body cavity.Then, it will wear Tartar 3 removes from the remote interface 11 of hollow sleeve 9, continues the inner sleeve tube assembly for removing puncturing head 3 to be set in outer tube It is operated in component.Combined puncturing device of the present invention also has another mode of operation: after interior sheath assembly is removed, It directly removes hollow sleeve 9, and substitutes upper new hollow sleeve 9, continue to be set in housing tube assembly later and operated.

Since housing tube assembly is the channel for establishing surgical procedure and body cavity, in entire surgical procedure In, optimal case is to maintain the sustainability of housing tube assembly.However in the course of surgery, it according to surgery situation, needs not stop Replacement medical instrument is when entering body cavity, medical instrument protrude into human body working end can the seal assembly of multiple external sheath assembly make At the damage of unrepairable.Secondly, needing repeatedly to remove the tissue or foreign matter of patient's body, the volume of these tissues or foreign matter is logical Chang Douhui is trapped at the seal assembly of housing tube assembly, needs to pull it casing in such a way that violence stretches, thus together Sample can the seal assembly of external sheath assembly cause the damage of unrepairable.

Using combined puncturing device of the invention, firstly, inner sleeve can be provided simultaneously with the use of puncture needle and inner sleeve Function, to save the cost for manufacturing puncture needle (end cap, Stainless steel rod and duroplasts puncturing head) in the prior art.

Using the combined puncturing device of the application, medical instrument can be needed the operating side into human body to be hidden in hollow In casing 9, go deep into body cavity again later, thus avoids the seal assembly for repeatedly replacing external sheath assembly caused by medical instrument The damage of (instrument seal and zero sealing).

Further, in the prior art, operative doctor is when taking out sample, such as when taking out sample tissue from abdominal cavity Instrument seal and zero sealing for needing to pass in succession through outer tube, using the combined puncturing device of the application, on the one hand can will cure The tissue or foreign matter for treating the patient's body that instrument obtains, are first hidden in hollow sleeve 9, later again by removing intermediate connect outward The mode of fitting 4, removes tissue under the premise of not damaging seal assembly out of human body, equally avoids repeatedly replacement medical treatment The damage of the seal assembly (instrument seal and zero sealing) of external sheath assembly caused by instrument.On the other hand, this mode exists It can be easier to take out sample during taking-up, while reduce sample tissue due to squeezing the case where generating damage appearance.

Further, it using puncture outfit of the invention, is removed from human body after tissue is hidden in hollow sleeve, by In the smooth engagement of inner sleeve and outer tube, the friction of the two bottom line is realized, farthest ensure that outer tube position The stability set is unlikely to cause the movement of outer tube, alleviates the pain of patient.

Also, puncture outfit of the invention is used, the inner sleeve tube assembly for needing more to renew rapidly according to operation or new is also convenient for Hollow sleeve, the operation after continuing accelerates operating time, significantly improves convenience and the operation of surgical procedure Efficiency.

It is the combination of technical solution of the present invention above, achieves the object of the present invention jointly.Those skilled in the art should Understand, sheath assembly disclosed by the invention is using for the casing or puncture that can be used for replacing on same seal assembly Head.It should be appreciated by those skilled in the art be also that the present invention protects using other kinds of outer tube composition sheath assembly Range.One of ordinary skill in the art, without departing from the scope of the invention, by it is suitably modified can be to described Method and apparatus makes adaptive improvement.Several kinds of amendment schemes are referred, for those skilled in the art, His amendment scheme is also to be contemplated that.Therefore the scope of the present invention should be understood that according to accessory claim, while not For the structure for being shown and being recorded by specification and attached drawing, the particular content of material or behavior is limited.