CN210727838U

CN210727838U - Operation channel protective sheath

Info

Publication number: CN210727838U
Application number: CN201921111260.0U
Authority: CN
Inventors: 查民中; 蒋大为; 程飚; 葛恒安
Original assignee: Suzhou Biowisetech Co ltd; SHANGHAI MEDICAL INSTRUMENTS (GROUP) Ltd CORP SURGICAL INSTRUMENTS FACTORY
Current assignee: Suzhou Biowisetech Co ltd; SHANGHAI MEDICAL INSTRUMENTS (GROUP) Ltd CORP SURGICAL INSTRUMENTS FACTORY; Shanghai Tenth Peoples Hospital
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-06-12
Anticipated expiration: 2029-07-16

Abstract

The utility model relates to an operation passageway protection sheath pipe has hollow body, the body include first end and second end the body in be close to the regional surface of second end set up the several notch, the several notch follow the axial distribution of body, the body part at every notch place sets to shearable, with the adjustment the axial length of body. Adopt the utility model discloses an operation passageway protection sheath pipe, design benefit, the structure is succinct, tailors to suitable length after-fixing on the operation passageway, can guarantee effectively that surgical instruments passes in and out repeatedly can not lead to the sheath pipe to drop, avoids deepening the iatrogenic source nature wound, reduces patient's misery, has reduced the operation degree of difficulty.

Description

Operation channel protective sheath

Technical Field

The utility model relates to a protection sheath pipe technical field specifically indicates a surgery passageway protection sheath pipe.

Background

Arthroscopic techniques have been widely used in the diagnosis and treatment of orthopedic joint diseases, such as partial or total resection of a torn meniscus of the knee, torn suture of the meniscus edge, anterior cruciate ligament repair, synovial crease excision, intra-articular adhesion release, tibial plateau or intercondylar crest fracture repair, rotator cuff debridement, tendon adhesion release of the biceps brachii, and intra-articular epistaxis excision. Compared with the arthroscopy, the arthroscopy operation has the advantages of small wound, less bleeding, light pain, quick recovery, wide indication, less contraindications and the like.

Arthroscopic surgery is an orthopedic joint surgery in which a lesion site is reached through a plurality of skin channels or tiny incisions (0.5cm to 1cm), and an operation is performed under direct vision by using an optical fiber imaging technology. The existing operation channel protection sheath is a hard metal sheath, the length of the sheath is fixed, and the length of the sheath cannot be adjusted according to operation requirements.

In the operation process, the length of the channel protection sheath tube often exceeds the thickness of skin tissues at the incision of the operation channel, the sheath tube is easy to fall off when a surgical instrument enters and exits the sheath tube, and the moving space is limited in a relatively narrow joint gap, so that the metal channel protection sheath tube is extremely inconvenient to use.

Many orthopedics doctors just no longer use operation passageway protection sheath pipe after establishing the operation passageway in the arthroscopic operation, directly pass in and out the operation passageway with surgical instruments repeatedly, increase the damage of operation passageway and incision department easily, and the patient changes the position when the operation, and the displacement of each layer tissue of operation passageway can lead to the passageway to warp, often need reestablish the operation passageway, has increased patient's iatrogenic nature damage, has reduced operation efficiency.

In the arthroscopic operation process, the normal saline is continuously injected into the operation channel by the infusion system to wash the operation position so as to ensure clear visual field, and if the protection of the channel-free protective sheath tube is not available, the normal saline leaks into the subcutaneous gap to cause a series of postoperative complications such as edema, bone fascial chamber syndrome and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming above-mentioned prior art's shortcoming, providing an arthroscopic surgery passageway protection sheath pipe, this sheath pipe can allow the doctor freely to tailor sheath pipe length according to the operation demand to fix the sheath pipe on the operation passageway, lead to the sheath pipe to drop when preventing surgical instruments from passing in and out, the protection operation passageway reduces patient's misery, improves operation efficiency.

In order to achieve the above object, the utility model provides an operation passageway protection sheath pipe, has following constitution:

the pipe comprises a hollow pipe body, wherein the pipe body comprises a first end and a second end, a plurality of notches are arranged on the outer surface of the area, close to the second end, of the pipe body, the notches are distributed along the axial direction of the pipe body, and the part, where each notch is located, of the pipe body is arranged to be sheared so as to adjust the axial length of the pipe body.

Preferably, the notch is a V-shaped notch, and the V-shaped notch is a symmetrical structure, and the symmetry axis is perpendicular to the axial direction of the pipe body.

Preferably, the plurality of notches are symmetrically distributed along the axial direction of the tube body.

Preferably, each notch is provided with a length indicator to indicate the distance of the notch from the first end of the tube.

Preferably, the outer surface of the region of the tube body near the first end is provided with external threads for fixing the protective sheath in the operation channel.

Preferably, the external thread is a conical external thread, and the taper angle is 20-40 degrees.

Preferably, the first end of the tube body is provided with a branch tube with a sealing structure for connecting with a transfusion system.

Preferably, the first end of the tubular body has a funnel-shaped port.

Preferably, the second end of the tube has a tapered end.

Preferably, the protective sheath is a flexible skin-friendly protective sheath.

Adopt the utility model discloses an operation passageway protection sheath pipe, design benefit, the structure is succinct, tailors to suitable length after-fixing on the operation passageway, can guarantee effectively that surgical instruments passes in and out repeatedly can not lead to the sheath pipe to drop, avoids deepening the iatrogenic source nature wound, reduces patient's misery, has reduced the operation degree of difficulty.

Drawings

Fig. 1 is a schematic structural view of the surgical channel protection sheath of the present invention.

Fig. 2 is a schematic cross-sectional view of the surgical tunnel protection sheath of the present invention.

Fig. 3 is a schematic structural view of the thread portion of the sheath tube for protecting the surgical passage according to the present invention.

Fig. 4 is a schematic structural view of the tube body in the sheath tube for protecting the operation channel of the present invention.

Fig. 5 is a schematic view of the surgical tunnel protecting sheath of the present invention before use.

Fig. 6 is a schematic view showing the state of the sheath tube for protecting the operation channel of the present invention in use.

Reference numerals

1 pipe body

1.1 funnel-shaped Port

1.2 branch pipes

1.3 external screw thread

1.4 recesses

1.5 Length Mark

2 sealing structure

Detailed Description

In order to more clearly describe the technical content of the present invention, the following further description is given with reference to specific embodiments.

As shown in FIGS. 1 to 5, for the embodiment of the protection sheath for the operation passageway provided by the present invention, the protection sheath has a hollow tube body 1, the tube body comprises a first end and a second end, a plurality of notches 1.4 are provided on the outer surface of the region of the tube body near the second end, the plurality of notches are distributed along the axial direction of the tube body, the tube body portion where each notch is located is configured to be shearable to adjust the axial length of the tube body, an external thread 1.3 is provided on the outer surface of the region of the tube body near the first end for fixing the protection sheath in the operation passageway, a branch tube 1.2 is provided on the first end of the tube body, a sealing structure 2 is provided on the branch tube 1.2, the branch tube can be connected with an infusion system after the sealing structure 2 is opened, the first end of the tube body has a funnel-shaped port 1.1, the second end of the tube body has a tapered port, the top end is smooth and round.

Wherein, the protective sheath can be arranged as a flexible skin-friendly protective sheath so as to be convenient for shearing. Through the protection sheath pipe that adopts flexible skin-friendly plastics to make, at V-arrangement notch position, can freely tailor required sheath pipe working length, adjust sheath pipe toper external screw thread and focus position's distance to suitable length after, utilize the toper external screw thread to fix the sheath pipe on operation passageway, guarantee that surgical instruments relapse the access way and can not lead to the sheath pipe to drop and cause the wound, avoid the normal saline seepage of pouring into to a series of operation complications that the subcutaneous clearance arouses simultaneously, make the arthroscopic operation become safe easy.

As shown in fig. 1-2, the notch 1.4 is a V-shaped notch, the V-shaped notch is a symmetrical structure, and the symmetry axis is perpendicular to the axial direction of the tube body.

As shown in fig. 4, two rows of notches 1.4 are symmetrically distributed along the axial direction of the pipe body, so that the pipe body is convenient to cut.

As shown in fig. 4, each notch all sets up length sign 1.5 to sign the notch with the distance of the first end of body, preferably, length sign 1.5 is used for the distance L of the tip of this notch and external screw thread 1.3, the utility model discloses an

sign

07, 09, 11, 13 represent distance L, the unit is mm.

As shown in fig. 3, the external thread 1.3 is a tapered external thread with a taper angle of 20 ° to 40 °, preferably 30 °.

As shown in figure 5, before use, the tube body can be cut to the appropriate length at the desired notch according to the specific surgical requirements. In fig. 5, the tube is cut at the length marked 13.

As shown in fig. 6, after the tube body 1 is cut to a proper length, the second end enters the human body through the operation channel, the operation channel is opened by utilizing the conical external thread 1.3, and the tube body is fixed at the entrance of the operation channel, so that the effect of fixing the sheath tube is realized.

In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Claims

1. A surgical access protective sheath comprising a hollow tubular body having a first end and a second end, a plurality of notches being provided in the tubular body at an outer surface of a region adjacent the second end, the plurality of notches being distributed along the axial direction of the tubular body, the portion of the tubular body in which each notch is located being configured to be shearable to adjust the axial length of the tubular body.

2. The surgical channel protection sheath of claim 1, wherein the notch is a V-shaped notch, and the V-shaped notch has a symmetrical structure with an axis of symmetry perpendicular to the axial direction of the tubular body.

3. The surgical pathway protection sheath of claim 1, wherein said plurality of notches are symmetrically disposed along an axial direction of said tubular body.

4. The surgical pathway protection sheath of claim 1, wherein each notch is provided with a length indicator to indicate the distance of the notch from the first end of the tubular body.

5. The surgical access protection sheath of claim 1, wherein external threads are provided on an outer surface of a region of said tubular body proximate said first end for securing said protection sheath to the surgical access.

6. The surgical channel protective sheath of claim 5, wherein said external threads are tapered external threads, and the taper angle is 20 ° to 40 °.

7. The surgical access protection sheath of any one of claims 1 to 6, wherein the first end of the tubular body is provided with a branch tube having a sealing structure for connection to a fluid administration system.

8. The surgical pathway protection sheath of any one of claims 1-6, wherein the first end of the tubular body has a funnel-shaped port.

9. The surgical access protection sheath of any one of claims 1-6, wherein the second end of the tubular body has a tapered port.

10. The surgical tunnel protective sheath according to any one of claims 1 to 6, wherein the protective sheath is a flexible skin-friendly protective sheath.