# US 11,998,239 B2 · Puncture instrument kit for transvaginal uterine sling

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- Number: US 11,998,239 B2
- Document ID: US11998239B2
- Status: Granted
- Kind: B2
- Application number: 18/119,847
- Filed: 2023-03-10
- Published: 2023-09-14
- Granted: 2024-06-04
- Earliest claimed: 2022-03-11
- Assignees: West China Hospital, Sichuan University
- Applicants: West China Hospital of Sichuan University
- Inventors: Deyi Luo; Hong Shen; Chi Zhang; Xiao Zeng
- Web page: https://patentgrep.com/patent/US11998239B2

## CPC

- A61B 17/06109: {Big needles, either gripped by hand or connectable to a handle}
- A61B 17/3496: {Protecting sleeves or inner probes; Retractable tips (for protecting body piercing guide needles A61M25/0612)}
- A61B 17/3403: {Needle locating or guiding means}
- A61B 17/3417: {Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating (syringe needles A61M5/32; dilators A61M29/00)}
- A61F 2/0063: {Implantable repair or support meshes, e.g. hernia meshes}
- A61B 2017/00358: {Snares for grasping}
- A61B 2017/00805: {Treatment of female stress urinary incontinence}
- A61B 2017/06042: {located close to needle tip}
- A61B 2017/3405: {using mechanical guide means}
- A61B 2017/3454: {Details of tips}
- A61F 2002/0072: {Delivery tools therefor}
- Y02A 50/30: Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

## Abstract

A puncture instrument kit includes a puncture rod, mesh, and sheath. The puncture rod consists of a puncture head, puncture rod body, and handle. One end of the puncture rod body is connected to the handle and the other end is integrated with the puncture head. The puncture head is arc-shaped with an end gradually tapering to form a tip. The tip of the puncture head is circumferentially designed with a groove for fixing a thread during surgery. The puncture head is smoothly connected with the puncture rod body, and the line between the tip of the puncture head and puncture rod body is at an obtuse angle of 130-140° relative to the puncture rod body. The sheath is sleeved on the puncture rod with the rod tip exposed. The mesh and sheath are designed as separate or integrated, and the tip of the puncture rod is provided with a shape-matching detachable silicone protective sleeve.

## Claims

### Claim 1

A puncture instrument kit for transvaginal uterine sling, comprising a puncture rod, mesh, and puncture sheath, wherein the puncture rod comprises a puncture head, a puncture rod body, and a handle; the puncture head, the puncture rod body, and the handle are connected; the puncture rod body comprises one end connected with the handle and the other end integrated with the puncture head; the puncture head is curved and has an end gradually tapering to form a tip; the tip of the puncture head is circumferentially provided with a groove for fixing a thread during surgery; the puncture head is smoothly connected with a connection point of the puncture rod body, and a connecting line between the tip of the puncture head and the connection point of the puncture rod body forms an obtuse angle of 130-140° relative to the puncture rod body, wherein the connection point of the puncture rod body is a position where the puncture head and the puncture rod body are connected; the length ratio of the puncture rod body and the puncture head is (1-1.5):1; the puncture sheath is sleeved on the puncture rod and covers the puncture head partially and the puncture rod body partially; the tip of the puncture head and the groove on the tip extend from the puncture sheath; the mesh and the puncture sheath are separated from each other or connected together; and the tip of the puncture head is provided with a detachable silicone protective sleeve, the shape of the detachable silicone protective sleeve correspond to the shape of the tip.

### Claim 2 (depends on 1)

The puncture instrument kit for the transvaginal uterine sling according to claim 1, wherein the puncture sheath covers one-third of the puncture rod body.

### Claim 3 (depends on 1)

The puncture instrument kit for the transvaginal uterine sling according to claim 1, wherein the puncture head is arc-shaped and corresponds to a center angle of 70-80°.

### Claim 4 (depends on 1)

The puncture instrument kit for the transvaginal uterine sling according to claim 1, wherein the puncture sheath is a tube, a shape and size of the tube correspond to a shape and size of the puncture rod, and a part of the puncture sheath corresponding to the tip of the puncture head forms an opening; and a part of the tip of the puncture head extends from the opening.

### Claim 5 (depends on 4)

The puncture instrument kit for the transvaginal uterine sling according to claim 4, wherein the tip of the puncture head has a length of 0.5 cm extending from the opening.

### Claim 6 (depends on 1)

The puncture instrument kit for the transvaginal uterine sling according to claim 1, wherein the puncture head is arc-shaped; the puncture rod body is tangentially connected with the puncture head; and the connecting line between the tip of the puncture head and the connection point of the puncture rod body forms an obtuse angle of 135° relative to the puncture rod body, wherein the connection point of the puncture rod body is the position where the puncture head and the puncture rod body are connected.

### Claim 7 (depends on 1)

The puncture instrument kit for the transvaginal uterine sling according to claim 1, wherein cross-sections of the puncture sheath and the puncture rod are circular.

### Claim 8 (depends on 1)

The puncture instrument kit for the transvaginal uterine sling according to claim 1, wherein the handle is provided with a non-slip concave-convex structure.

### Claim 9 (depends on 1)

The puncture instrument kit for the transvaginal uterine sling according to claim 1, wherein the mesh and the puncture sheath are separated from each other or connected together; when the mesh and the puncture sheath are separated from each other, the mesh and the puncture sheath are used in combination; and when the mesh and the puncture sheath are connected together, the mesh is bonded to a tail of the puncture sheath.

### Claim 10 (depends on 1)

The puncture instrument kit for the transvaginal uterine sling according to claim 1, wherein the puncture head has a length of 9 cm, and the tip has a length of 1 cm; the puncture rod body and the puncture head have a total length of 20-25 cm and a diameter of 10 Fr; the diameter of the puncture head is gradually reduced from a joint between the puncture head and the puncture rod body to the tip of the puncture head; the puncture sheath has a diameter of 12 Fr and a length of 10-12 cm; and the mesh is made of 20 cm×2 cm medical grade polypropylene (PP).