# US 12,178,449 B2 · Lateral sleeve pipe drill and operating method

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- Number: US 12,178,449 B2
- Document ID: US12178449B2
- Status: Granted
- Kind: B2
- Application number: 17/621,444
- Filed: 2020-06-12
- Published: 2022-11-03
- Granted: 2024-12-31
- Earliest claimed: 2019-06-26
- Assignees: Beijing Longfu Hospital
- Applicants: Beijing Longfu Hospital
- Inventors: Yanli Lu; Yuanli Wang; Qingpu Wang; Zhijun Tian
- Web page: https://patentgrep.com/patent/US12178449B2

## CPC

- A61B 17/1633: {Sleeves, i.e. non-rotating parts surrounding the bit shaft, e.g. the sleeve forming a single unit with the bit shaft (A61B17/1644 takes precedence)}
- A61B 17/1659: {Surgical rasps, files, planes, or scrapers}
- A61B 17/1622: {Drill handpieces (A61B17/1626, A61B17/1628 take precedence)}
- A61B 17/1671: {for the spine}
- A61B 17/1637: {Hollow drills or saws producing a curved cut, e.g. cylindrical (A61B10/025, A61B17/1695 take precedence)}
- A61B 2017/0046: {with a releasable handle; with handle and operating part separable}
- A61B 2017/00477: {Coupling (A61B2017/0046 takes precedence)}
- A61B 2090/08021: {of the patient or his organs}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

The present disclosure relates to a lateral sleeve pipe drill and a operating method, belong to the field of surgical instrument technologies, and solves the problems that a bone passage cannot be effectively corrected and is liable to be corrected excessively, and correction is time-consuming and damages important functional bone tissue morphology. The lateral sleeve pipe drill is of a hollow cylindrical shape and includes a first end and a second end. An outer wall of the first end is provided with a correction portion for correcting the bone passage. The first end is arranged in a human body and is of a particular shape adapted to different surgical methods, a surgical approach direction, and a human body internal structure.

## Claims

### Claim 1

A lateral sleeve pipe drill, wherein the lateral sleeve pipe drill is of a hollow cylindrical shape and comprises a first end and a second end, an outer wall of the first end is provided with a correction portion for correcting a bone passage, the first end is configured to be arranged in a human body and is of a shape adapted to different surgical methods, a surgical approach direction, and an internal structure of the human body; the second end is provided with a submersible handle to supply power to correct the bone passage, the submersible handle comprises a grip portion and a handle body, the handle body is provided with a passage into which the lateral sleeve pipe drill enters, a side wall of the handle body is provided with an opening through which the lateral sleeve pipe drill enters the passage, and the lateral sleeve pipe drill is partially arranged in the submersible handle; the passage comprises an oblique passage and a central passage arranged coaxially, the oblique passage and the central passage are arranged in a spiral structure in sequence; and the central passage has a C-shaped cross-section; at least one of the central passage and the lateral sleeve pipe drill is provided with a fixing portion, and the fixing portion is configured to fix the lateral sleeve pipe drill and the submersible handle.

### Claim 2 (depends on 1)

The lateral sleeve pipe drill as claimed in claim 1, wherein the shape is of oblique-type.

### Claim 3 (depends on 2)

The lateral sleeve pipe drill as claimed in claim 2, wherein the correction portion is one of a one-way thread, a cross-thread and emery.

### Claim 4 (depends on 1)

The lateral sleeve pipe drill as claimed in claim 1, wherein the correction portion is one of a one-way thread, a cross-thread and emery.

### Claim 5 (depends on 4)

The lateral sleeve pipe drill as claimed in claim 4, wherein the one-way thread is a horizontal thread or an oblique thread.

### Claim 6 (depends on 1)

The lateral sleeve pipe drill as claimed in claim 1, wherein an inner wall of the central passage is provided with a groove for accommodating and fixing the lateral sleeve pipe drill, and the groove is arranged in a direction parallel to a central axis of the central passage.

### Claim 7 (depends on 1)

The lateral sleeve pipe drill as claimed in claim 1, wherein a side wall of the lateral sleeve pipe drill in one direction is provided with a buckle adapted to a shape of the passage, and the buckle is configured to fix the lateral sleeve pipe drill and the submersible handle.