CN201814635U

CN201814635U - Spiral puncture device

Info

Publication number: CN201814635U
Application number: CN2010205505298U
Authority: CN
Inventors: 莫易凡
Original assignee: 莫易凡
Current assignee: Shi Aide (Xiamen) medical equipment Co., Ltd.
Priority date: 2010-09-30
Filing date: 2010-09-30
Publication date: 2011-05-04
Anticipated expiration: 2020-09-30

Abstract

The utility model provides a spiral puncture device characterized by easy operation and reduction of operation risk. The spiral puncture device comprises a bushing sheath with a handle at the tail end and a core bar with a core bar base at the tail end, the side surface of the handle is provided with a vent pipe with an air valve, the handle core space is provided with a rubber check valve coaxial with a bushing sheath; the handle tail end is provided with an opening coaxial with and communicated with the bushing sheath, the core bar inserts into the bushing sheath via the opening disposed on the handle, the core bar inserts into the bushing sheath until the end, the front end of the core bar extends out of the bushing sheath, the puncture device is characterized in that: the outer wall of the bushing sheath is provided with continuous sheath screw threads; the core bar extends into the bushing sheath until the end, the external surface of the part at the front end of the core bar extending out of the bushing sheath is provided with bar screw threads. The spiral puncture device is advantaged by controllable puncture force, controllable puncture speed, controllable puncture depth, small organization wound, fixation and firmness, etc.

Description

The spiral perforator

Technical field

This utility model relates to a kind of simple to operate, spiral perforator of lowering operation risk.

Background technology

Common sleeve pipe perforator is provided with lines (as screw thread, serrated slot etc.) on cannula sheath outer wall middle section position at present, its purpose only is for after entering the abdominal cavity at the sleeve pipe perforator, the lines position of sleeve pipe perforator contacts with abdominal wall tissue, increases frictional force, plays fixedly perforator.

Sleeve pipe perforator core bar front end is provided with cutting knife or taper puncture core print.Existing cutting knife is divided into two groups of sharp property and passivity, the employing of sharp property be metal cutter, its advantage is the sharpness height, can more effective cut-out tissue, but there have the tissue of cut-out to cause simultaneously to be hemorrhage, scratch danger such as internal organs, sharp property cutting knife adopts the into method of abdomen that vertically continues to exert oneself, in case and the core bar end penetrate Musclar layer, the patient still vertically firmly can cause the sleeve pipe perforator to enter the abdominal cavity excessive velocities, may stab human internal organs, cause unnecessary damage; The passivity cutting knife, and the core bar front end is the plastics cutting knife, plastics cutting knife cutting power is poor, in order to make the sleeve pipe perforator enter intraperitoneal, now all adopt the mode of directly reversing extruding that the sleeve pipe perforator is sent into intraperitoneal, it is the handle place that the patient holds the sleeve pipe perforator, about the revoling tube perforator that do not stop and squeezing bushing perforator forward firmly, thereby realize entering of sleeve pipe perforator, it is disconnected like this part meat fiber to be stirred, in case same core bar end penetrates Musclar layer, the patient still vertically firmly can cause the sleeve pipe perforator to enter the abdominal cavity excessive velocities, may stab human internal organs, cause unnecessary damage.Above-mentioned situation may take place with the passivity cutting knife in taper puncture core print perforator operation equally.

The posterior peritoneum trunk damage incidence rate that first puncture of tool statistics laparoscopic surgery causes is 0.05% one 0.11%; Laparoscopic cholecystectomy (LC), the Chang Bingfa blood vessel injury owing to use apparatus such as pneumoperitoneum pin, puncture awl, the blood vessel injury case fatality rate is 0.02%, accounts for 21.9% of LC death toll.

Summary of the invention

The purpose of this utility model is to provide a kind of simple to operate, sleeve pipe perforator of lowering operation risk.

This utility model is made of the cannula sheath of afterbody band handle and the core bar of afterbody belt carcass pole socket, and the side of handle is provided with the breather of band air valve, and intracavity of handle is provided with and the co-axial rubber check valve of cannula sheath; The handle afterbody is provided with the opening of and UNICOM coaxial with cannula sheath, the opening that the logical handle of described core bar is provided with inserts in the cannula sheath, core bar stretches into cannula sheath to the end, and the front end of core bar will extend cannula sheath, it is characterized in that: be distributed with successive sheath screw thread on the cannula sheath outer wall; Core bar stretch into cannula sheath to the end, the front end of the core bar part outer surface that extends cannula sheath is provided with the bar screw thread.

Advantage of the present utility model is as follows: by the improvement to cannula sheath and core bar front end, the method that adopt to continue the rotation perforator enters cavity behind abdominal cavity or the peritoneum, have the following advantages: 1, the puncture dynamics is controlled, original method all needs vertical firmly may damage blood vessel behind abdominal visceral browser or the peritoneum, and it is firmly vertical to adopt this product and the method puncture later stage not need, make that blood vessel injury is zero behind the peritoneum, lowering the abdominal visceral browser damage greatly may.2, the puncture speed-controllable, the puncture speed can be controlled by spiral speed and vertical dynamics size, and according to the type of the difference of model or screw thread and stricture of vagina apart from can extrapolate rotate a circle after, the progressive degree of depth of this utility model.3, paracentesis depth is controlled, by the rotation perforator, can arbitrarily adjust the degree of depth of perforator in the abdominal cavity.4, tissue injury is little, and the spiral puncture is advanced abdomen for strutting tissue, is backpitch when extracting perforator, tissue injury's minimum, and the otch minimum, it is the fastest to heal, and reduces abdominal hernia and forms.5, perforator is fixed, the spiral puncture is advanced abdomen for strutting tissue, and tissue contacts more tight with the threaded outer wall of cannula sheath, thereby increases frictional force between the two, it is the most firm that tissue is controlled epitheca, make being fixed on the skin that perforator can be more firm, reduce slide may, can adopt the locating ring device, can prevent perforator from being bumped by mistake and scurry into the abdominal cavity, damage interior tissue and internal organs.6, reduce the used power of vertical direction, reduce patient's pressure.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of this utility model core bar seat and core bar;

Fig. 3 is the structural representation of this utility model handle and cannula sheath;

Fig. 4 cuts open figure for the survey of Fig. 1;

Fig. 5 is the sectional side view of band locating ring structure.

Label declaration

1 handle, 2 cannula sheaths, 3 core bar seats, 4 core bars, 5 air valves, 6 breathers, 7 rubber check valves, 8 openings, 9 sheath screw threads, 10 bar screw threads, 11 locating rings.

The specific embodiment

Shown in Fig. 1-4: this utility model is made of the cannula sheath 2 of afterbody band handle 1 and the core bar 4 of afterbody belt carcass pole socket 3, during use, core bar stretched into cannula sheath and make the core bar seat and the handle touching after, the core bar front end will extend the subregion from the cannula sheath front end, hold handle afterwards and the core bar seat is squeezed to intraperitoneal with this utility model, the side of sheath handle is provided with the breather 6 of band air valve 5, be used to feed gas, the existence that keeps pneumoperitoneum, intracavity of handle is provided with and the co-axial rubber check valve 7 of cannula sheath, is used for increasing the frictional force between the cannula sheath of core bar and band handle and keeps air-tightness; The handle afterbody is provided with the opening 8 of and UNICOM coaxial with cannula sheath, the inlet of core bar when this opening is core bar and the cannula sheath combination of being with handle, the opening that the logical handle of core bar is provided with inserts in the cannula sheath, core bar stretches into cannula sheath to the end, the front end of core bar extends cannula sheath, be distributed with successive sheath screw thread 9 on the cannula sheath outer wall, the sheath screw thread mainly plays and makes things convenient for cannula sheath to enter in the human body, also increases frictional force between cannula sheath and the skin simultaneously.

It is pyramidal structure that core bar stretches into the part that cannula sheath to core bar seat contacts with handle afterwards, the front end of core bar extends cannula sheath, the purpose of conical design is in order to increase the acuteness of core bar front end, when using this utility model, penetrate the muscular tissue of core bar front end easily.

For the more efficiently realization this utility model using method of energy, preferably can also be provided with bar screw thread 10 at core bar front end outer surface.When core bar stretch into cannula sheath to the core bar seat with after handle contacts, is that bar screw thread top, the other end are the bar screw tip with the bar screw thread near an end of core bar front end, bar screw thread top is 0 ~ 1.5cm far from core bar front end end horizontal distance, and the bar screw tip may extend in the cannula sheath; Bar screw thread top is 0 o'clock far from core bar front end end horizontal distance, and promptly the bar screw thread covers the part that core bar extends cannula sheath, and this utility model result of use is best.The bar screw thread docks with the sheath screw thread, may guarantee the continuous property of connection of operating process.

The sheath screw thread is cannula sheath top with the end near the cannula sheath front end mouth of pipe, and the other end is the cannula sheath terminal, and the distance of the sheath screw thread top and the cannula sheath mouth of pipe is 0 ~ 3cm, and the distance of sheath screw thread terminal and cannula sheath and handle intersection is 0 ~ 3cm.The distance of its mesotheca screw thread top and the cannula sheath mouth of pipe is 0 o'clock result of use the best.

As shown in Figure 5: the cannula sheath outer wall also is provided with and can moves up and down outside cannula sheath and fixed locating ring 11, and locating ring is the middle loop configuration that is provided with through hole, and through-hole aperture is slightly larger than puncture sheath outer diameter, and locating ring is set in outside the puncture sheath; Locating ring is arranged on puncture sheath outer wall and is provided with on the interval of sheath screw thread, through-hole wall is provided with the female thread corresponding with the sheath screw thread, the locating ring below is provided with annular gripper shoe, by being set, locating ring can further effectively control the degree of depth of puncture of the present utility model, when determining the degree of depth that cannula sheath need puncture, can rotate locating ring to assigned address, gripper shoe is used to increase the contact surface of locating ring and skin, avoids this utility model to move to intraperitoneal.

When using this utility model, operative procedure before inserting this utility model is with existing identical, and compound mode of the present utility model is also identical, with the cannula sheath of band handle and the core bar fit of belt carcass pole socket, make core bar stretch into cannula sheath until the end, the front end of core bar will extend cannula sheath.

During use, hold the otch that handle inserts spiral perforator front end skin, after the front end of spiral perforator core bar passes fat deposit and contacts Musclar layer, ridge orientation according to core bar screw thread and cannula sheath screw thread rotates with clockwise or counterclockwise orientation, simultaneously the spiral perforator is applied the power perpendicular to otch, no matter core bar front end conical design or screw thread design, can make the effectively crowded muscular tissue of opening of core bar by rotating and applying a power perpendicular to wound, when the spiral perforator gos deep into the Musclar layer certain depth, can stop to apply power perpendicular to wound, only need to continue directed rotation, arrive assigned address until spiral perforator front end, extract core bar afterwards out, continue rotation, make cannula sheath arrive assigned address.

Claims

1. spiral perforator, it is made of the cannula sheath (2) of afterbody band handle (1) and the core bar (4) of afterbody belt carcass pole socket (3), the side of handle is provided with the breather (6) of band air valve (5), and intracavity of handle is provided with and the co-axial rubber check valve of cannula sheath (7); The handle afterbody is provided with the opening (8) of and UNICOM coaxial with cannula sheath, the opening that described core bar is provided with by handle inserts in the cannula sheath, core bar stretches into cannula sheath to the end, the front end of core bar extends cannula sheath, it is characterized in that: be distributed with successive sheath screw thread (9) on the cannula sheath outer wall.

2. spiral perforator according to claim 1: it is characterized in that: it is pyramidal structure that core bar stretches into the part that cannula sheath to core bar seat contacts with handle afterwards, the front end of core bar extends cannula sheath.

3. spiral perforator according to claim 2: it is characterized in that: core bar front end outer surface also is provided with bar screw thread (10).

4. spiral perforator according to claim 3, it is characterized in that: core bar stretch into cannula sheath to the core bar seat with after handle contacts, is that bar screw thread top, the other end are the bar screw tip with the bar screw thread near an end of core bar front end, bar screw thread top is 0 ~ 1.5cm far from core bar front end end horizontal distance, and the bar screw tip extends in the cannula sheath; The bar screw thread docks with the sheath screw thread.

5. spiral perforator according to claim 1, it is characterized in that: is sheath screw thread top with the sheath screw thread with the end near the cannula sheath front end mouth of pipe, the other end is a sheath screw thread terminal, the distance of the sheath screw thread top and the cannula sheath mouth of pipe is 0 ~ 3cm, and the distance of sheath screw thread terminal and cannula sheath and handle intersection is 0 ~ 3cm.

6. spiral perforator according to claim 1 or 5, it is characterized in that: the cannula sheath outer wall also is provided with and can moves up and down outside cannula sheath and fixed locating ring (11), locating ring is the middle loop configuration that is provided with through hole, through-hole aperture is slightly larger than puncture sheath outer diameter, and locating ring is set in outside the puncture sheath; Locating ring is arranged on puncture sheath outer wall and is provided with on the interval of sheath screw thread, and through-hole wall is provided with the female thread corresponding with the sheath screw thread.